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Kannan M, Vitenberg T, Schweitzer R, Opatovsky I. Hemolymph metabolism of black soldier fly (Diptera: Stratiomyidae), response to different supplemental fungi. JOURNAL OF INSECT SCIENCE (ONLINE) 2024; 24:5. [PMID: 38713543 DOI: 10.1093/jisesa/ieae050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/17/2024] [Accepted: 04/14/2024] [Indexed: 05/09/2024]
Abstract
The black soldier fly, Hermetia illucens L. (Diptera: Stratiomyidae), is commonly used for organic waste recycling and animal feed production. However, the often inadequate nutrients in organic waste necessitate nutritional enhancement of black soldier fly larvae, e.g., by fungal supplementation of its diet. We investigated the amino acid composition of two fungi, Candida tropicalis (Castell.) Berkhout (Saccharomycetales: Saccharomycetaceae) and Pichia kudriavzevii Boidin, Pignal & Besson (Saccharomycetales: Pichiaceae), from the black soldier fly gut, and commercial baker's yeast, Saccharomyces cerevisiae Meyen ex E.C. Hansen (Saccharomycetales: Saccharomycetaceae), and their effects on larval growth and hemolymph metabolites in fifth-instar black soldier fly larvae. Liquid chromatography-mass spectrometry was used to study the effect of fungal metabolites on black soldier fly larval metabolism. Amino acid analysis revealed significant variation among the fungi. Fungal supplementation led to increased larval body mass and differential metabolite accumulation. The three fungal species caused distinct metabolic changes, with each over-accumulating and down-accumulating various metabolites. We identified significant alteration of histidine metabolism, aminoacyl-tRNA biosynthesis, and glycerophospholipid metabolism in BSF larvae treated with C. tropicalis. Treatment with P. kudriavzevii affected histidine metabolism and citrate cycle metabolites, while both P. kudriavzevii and S. cerevisiae treatments impacted tyrosine metabolism. Treatment with S. cerevisiae resulted in down-accumulation of metabolites related to glycine, serine, and threonine metabolism. This study suggests that adding fungi to the larval diet significantly affects black soldier fly larval metabolomics. Further research is needed to understand how individual amino acids and their metabolites contributed by fungi affect black soldier fly larval physiology, growth, and development, to elucidate the interaction between fungal nutrients and black soldier fly physiology.
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Affiliation(s)
- Mani Kannan
- Laboratory of Insect Nutrition and Metabolism, Department of Nutrition and Natural Products, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
- Department of Animal Science, Faculty of Sciences and Technology, Tel-Hai College, 11 Upper Galilee, Israel
| | - Tzach Vitenberg
- Laboratory of Insect Nutrition and Metabolism, Department of Nutrition and Natural Products, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
| | - Ron Schweitzer
- Department of Natural Compounds and Analytical Chemistry, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
| | - Itai Opatovsky
- Laboratory of Insect Nutrition and Metabolism, Department of Nutrition and Natural Products, MIGAL-Galilee Research Institute, Kiryat Shmona, Israel
- Department of Animal Science, Faculty of Sciences and Technology, Tel-Hai College, 11 Upper Galilee, Israel
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Soomro AA, Rehman KU, Cai M, Laghari ZA, Zheng L, Yu Z, Zhang J. Larval biomass production from the co-digestion of mushroom root waste and soybean curd residues by black soldier fly larvae (Hermetia illucens L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:30112-30125. [PMID: 38602637 DOI: 10.1007/s11356-024-33173-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/28/2024] [Indexed: 04/12/2024]
Abstract
People are increasingly using black soldier fly larvae (BSFL) as a sustainable waste management solution. They are high in protein and other essential nutrients, making them an ideal food source for livestock, poultry, and fish. Prior laboratory studies with BSFL developed on pure mushroom root waste (MRW) showed poor conversion efficiency compared to a regular artificial diet. Therefore, we mixed the nutrient-rich soybean curd residues (SCR) with MRW in different ratios (M2-M5). Pure mushroom root waste (M1, MRW 100%) had the lowest survival rate (86.2%), but it increased up to 96.9% with the SCR percentage increasing. M1 had the longest developmental period (31.1 days) and the lowest BSFL weight (7.4 g). However, the addition of SCR reduced the development time to 22.0 and 21.5 days in M4 (MRW 40%, SCR 60%) and M5 (MRW 20%, SCR 80%), respectively, and improved the larval weight to 10.9 g in M4 and 11.8 g in M5. Other groups did not have as much feed conversion ratio (FCR) (8.4 for M4 and M5), bioconversion (M4 5.4%; M5 5.9%), or lipid content (M4 25.2%; M5 24.3%). These mixtures did. Compare this to M1. We observed better results, with no significant differences between the M4 and M5 groups and their parameters. In the present study, our main target was to utilize more MRW. Therefore, we preferred the M4 group in our nutritional and safety investigation and further compared it with the artificial diet (M7). The heavy metals and essential amino acids (histidine 3.6%, methionine 2.7%, and threonine 3.8%) required for human consumption compared to WHO/FAO levels showed satisfactory levels. Furthermore, fatty acids (capric acid 1.9%, palmitic acid 15.3%, oleic acid 17.3%, and arachidonic acid 0.3%) also showed higher levels in M4 than M7. The SEM images and FT-IR spectra from the residues showed that the BSFL in group M4 changed the structure of the compact fiber to crack and remove fibers, which made the co-conversion mixture better.
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Affiliation(s)
- Abdul Aziz Soomro
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Pakistan Agricultural Research Council-Arid Zone Research Centre, Umerkot, Pakistan
| | - Kashif Ur Rehman
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- German Institute of Food Technologies (DIL E.V.), Prof.-V.-Klitzing-Str. 7, 49610, Quakenbrück, Germany
- Department of Microbiology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Punjab, Pakistan
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Zubair Ahmed Laghari
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, Hubei Province, China
- Department of Veterinary Parasitology, Sindh Agriculture University, Tandojam, 70060, Sindh, Pakistan
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- Hubei Hongshan Laboratory, Wuhan, China.
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Dallaire-Lamontagne M, Lebeuf Y, Allard Prus JM, Vandenberg GW, Saucier L, Deschamps MH. Characterization of hatchery residues for on farm implementation of circular waste management practices. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 175:305-314. [PMID: 38237406 DOI: 10.1016/j.wasman.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/29/2024]
Abstract
The conventional management of hatchery residues is associated with greenhouse gas and unpleasant odor emissions, the presence of pathogens and high disposal costs for producers. To address these issues, on-farm alternatives like composting, fermentation, and insect valorization are promising approaches. This study aims to characterize hatchery residues and define critical quality thresholds to identify effective processes for their management. Hatchery residue samples were collected bi-monthly over a year (N = 24) and were analyzed for proximate composition (dry matter, ash, energy, crude protein, crude lipid, crude fiber, carbohydrates), pH, color (L*a*b*, Chroma) and microbiological loads (total aerobic mesophilic counts, coliforms, lactic acid bacteria). Volatile fatty acid composition was also measured (N = 8). Significant correlation coefficients were found between TAM and LAB loads and residue characterization (pH, chroma, crude fibers, carbohydrates, and temperature). On a dry matter basis, residues were high in energy (2498 to 5911 cal/g), proteins (21.3 to 49.4 %) and lipids (14.6 to 29.1 %), but low in carbohydrates (0 to 15.3 %) despite temporal fluctuations. Ash content varied widely (8.6 to 49.1 %, dry matter) and is influenced by eggshell content. Microbiological loads were high for total aerobic mesophilic bacteria (6.5 to 9.1 log cfu/g), coliforms (5.4 to 8.5 log cfu/g) and lactic acid bacteria (6.7 to 9.0 log cfu/g). Valorization of hatchery residues on the farm will depends on the optimization of effective upstream stabilization processes. The critical points are discussed according to the valorization potentials that could be implemented on the farm from composting to upcycling by insects.
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Affiliation(s)
- Mariève Dallaire-Lamontagne
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, 2425 rue de l'Agriculture, Québec, QC G1V 0A6, Canada; Institut sur la nutrition et les aliments fonctionnels, Université Laval, 2440 Bd Hochelaga, Québec, QC G1V 0A6, Canada; Chair of Educational Leadership (CLE) in Primary Production and Processing of Edible Insects (CLEIC https://cleic.fsaa.ulaval.ca/en/), Canada; Inscott, 1798 Route du Président-Kennedy, Scott, QC G0S 3G0, Canada.
| | - Yolaine Lebeuf
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, 2425 rue de l'Agriculture, Québec, QC G1V 0A6, Canada; Institut sur la nutrition et les aliments fonctionnels, Université Laval, 2440 Bd Hochelaga, Québec, QC G1V 0A6, Canada.
| | - Jean-Michel Allard Prus
- Couvoir Scott Ltée, 1798 Route du Président-Kennedy, Scott, QC G0S 3G0, Canada; Inscott, 1798 Route du Président-Kennedy, Scott, QC G0S 3G0, Canada.
| | - Grant W Vandenberg
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, 2425 rue de l'Agriculture, Québec, QC G1V 0A6, Canada; Chair of Educational Leadership (CLE) in Primary Production and Processing of Edible Insects (CLEIC https://cleic.fsaa.ulaval.ca/en/), Canada.
| | - Linda Saucier
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, 2425 rue de l'Agriculture, Québec, QC G1V 0A6, Canada; Institut sur la nutrition et les aliments fonctionnels, Université Laval, 2440 Bd Hochelaga, Québec, QC G1V 0A6, Canada; Centre de recherche en infectiologie porcine et avicole (CRIPA), 3200 Sicotte, bureau 3115-4, Saint-Hyacinthe, QC J2S 2M2, Canada.
| | - Marie-Hélène Deschamps
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, 2425 rue de l'Agriculture, Québec, QC G1V 0A6, Canada; Institut sur la nutrition et les aliments fonctionnels, Université Laval, 2440 Bd Hochelaga, Québec, QC G1V 0A6, Canada; Chair of Educational Leadership (CLE) in Primary Production and Processing of Edible Insects (CLEIC https://cleic.fsaa.ulaval.ca/en/), Canada; Centre de recherche en infectiologie porcine et avicole (CRIPA), 3200 Sicotte, bureau 3115-4, Saint-Hyacinthe, QC J2S 2M2, Canada.
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Ruan L, Ye K, Wang Z, Xiong A, Qiao R, Zhang J, Huang Z, Cai M, Yu C. Characteristics of gut bacterial microbiota of black soldier fly (Diptera: Stratiomyidae) larvae effected by typical antibiotics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115861. [PMID: 38154153 DOI: 10.1016/j.ecoenv.2023.115861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/12/2023] [Accepted: 12/17/2023] [Indexed: 12/30/2023]
Abstract
As agents in an emerging technology, Hermetia illucens (Linnaeus, 1758) (Diptera: Stratiomyidae) larvae, black soldier fly, have shown exciting potential for degrading antibiotics in organic solid waste, a process for which gut microorganisms play an important role. This study investigated the characteristics of larval gut bacterial communities effected by typical antibiotics. Initially, antibiotics significantly reduced the diversity of gut bacterial species. After 8 days, diversity recovered to similar to that of the control group in the chlortetracycline, tylosin, and sulfamethoxazole groups. Proteobacteria, Firmicutes, and Actinobacteriota were the dominant phyla at the initial BSFL gut. However, after 4 days treatment, the proportion of Actinobacteriota significantly decreased, but Bacteroidota notably increased. During the conversion process, 18, 18, 17, 21, and 19 core genera were present in the chlortetracycline, sulfamethoxazole, tylosin, norfloxacin, and gentamicin groups, respectively. Pseudomonas, Actinomyces, Morganella, Providencia and Klebsiella might be the important genera with extraordinary resistance and degradation to antibiotics. Statistical analyses of COGs showed that antibiotics changed the microbial community functions of BSFL gut. Compared with the control group, (i) the chlortetracycline, sulfamethoxazole, and tylosin groups showed significant increase in the classification functions of transcription, RNA processing and modification,and so on, (ii) the norfloxacin and gentamicin groups showed significant increase in defense mechanisms and other functions. Note that we categorized the response mechanisms of these classification functions to antibiotics into resistance and degradation. This provides a new perspective to deeply understand the joint biodegradation behavior of antibiotics in environments, and serves as an important reference for further development and utilization of microorganisms-assisted larvae for efficient degradation of antibiotics.
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Affiliation(s)
- Linsen Ruan
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Kaiyu Ye
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Zhicheng Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Anqi Xiong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Rong Qiao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, National Engineering Research Centre of Microbial Pesticides, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiyong Huang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National Technology Innovation Center of Synthetic Biology, Tianjin 300308, China.
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, National Engineering Research Centre of Microbial Pesticides, Huazhong Agricultural University, Wuhan 430070, China.
| | - Chan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China.
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Shao M, Zhao X, Rehman KU, Cai M, Zheng L, Huang F, Zhang J. Synergistic bioconversion of organic waste by black soldier fly ( Hermetia illucens) larvae and thermophilic cellulose-degrading bacteria. Front Microbiol 2024; 14:1288227. [PMID: 38268703 PMCID: PMC10806183 DOI: 10.3389/fmicb.2023.1288227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/26/2023] [Indexed: 01/26/2024] Open
Abstract
Introduction This study examines the optimum conversion of Wuzhishan pig manure by Black Soldier Fly Larvae (BSFL) at various phases of development, as well as the impact of gut microbiota on conversion efficiency. Method and results In terms of conversion efficiency, BSFL outperformed the growing pig stage (GP) group, with significantly higher survival rates (96.75%), fresh weight (0.23 g), and larval conversion rate (19.96%) compared to the other groups. Notably, the GP group showed significant dry matter reductions (43.27%) and improved feed conversion rates (2.17). Nutritional composition varied, with the GP group having a lower organic carbon content. High throughput 16S rRNA sequencing revealed unique profiles, with the GP group exhibiting an excess of Lactobacillus and Clostridium. Promising cellulose-degrading bacteria in pig manure and BSFL intestines, including Bacillus cereus and Bacillus subtilis, showed superior cellulose degradation capabilities. The synergy of these thermophilic bacteria with BSFL greatly increased conversion efficiency. The BSFL1-10 group demonstrated high growth and conversion efficiency under specific conditions, with remarkable larval moisture content (71.11%), residual moisture content (63.20%), and waste reduction rate (42.28%). Discussion This study sheds light on the optimal stages for BSFL conversion of pig manure, gut microbiota dynamics, promising thermophilic cellulose-degrading bacteria, and the significant enhancement of efficiency through synergistic interactions. These findings hold great potential for sustainable waste management and efficient biomass conversion, contributing to environmental preservation and resource recovery.
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Affiliation(s)
- Mingying Shao
- Institute of Tropical Agricultural Technology, Hainan Vocational University, Haikou, Hainan, China
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Xiao Zhao
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Kashif Ur Rehman
- Department of Microbiology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
- German Institute of Food Technologies, Quakenbrück, Germany
| | - Minmin Cai
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Longyu Zheng
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Feng Huang
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Jibin Zhang
- National Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
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Xiang F, Zhang Q, Xu X, Zhang Z. Black soldier fly larvae recruit functional microbiota into the intestines and residues to promote lignocellulosic degradation in domestic biodegradable waste. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122676. [PMID: 37839685 DOI: 10.1016/j.envpol.2023.122676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/17/2023]
Abstract
Lignocellulose is an important component of domestic biodegradable waste (DBW), and its complex structure makes it an obstacle in the biological treatment of DBW. Here, we identify black soldier fly larvae (Hermetia illucens L., BSFL) as a bioreactor for lignocellulose degradation in DBW based on their ability to effectively recruit lignocellulose-degrading bacteria. This study mainly examined the lignocellulose degradation, dynamic succession of the microbial community, gene expression of carbohydrate-active enzymes (CAZymes), and co-occurrence network analysis. Investigation of lignocellulose degradation by BSFL within 14 days indicated that the lignocellulose biodegradation rate in the larvae treatment (LT, 26.5%) group was higher than in natural composting (NC, 4.06%). In order to gain a more comprehensive understanding of microbiota, we conducted metagenomic sequencing of larvae intestines (LI), along with the LT and NC. The relative abundance of lignocellulose-degrading bacteria and CAZymes genes in LT and LI were higher than those in NC based on metagenomics sequencing. Importantly, genes coding cellulase and hemicellulase in LI were 3.36- and 2.79-fold higher, respectively, than that in LT, while the ligninase genes in LT were 1.82-fold higher than in LI. A co-occurrence network analysis identified Enterocluster and Luteimonas as keystone taxa in larvae intestines and residues, respectively, with a synergistic relationship to lignocellulose-degrading bacteria. The mechanism of recruiting functional bacteria through the larvae intestines promoted lignocellulose degradation in DBW, improving the efficiency of BSFL biotechnology and resource regeneration.
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Affiliation(s)
- FangMing Xiang
- College of Environmental and Resource Sciences, ZheJiang University, YuHangTang Ave 866, HangZhou, ZheJiang Province, 310058, PR China; JiaXing FuKang Biotechnology Company Limited, Building 1-19#, Development Ave 133, TongXiang Economic HiTech Zone, TongXiang, 314515, PR China.
| | - Qian Zhang
- JiaXing FuKang Biotechnology Company Limited, Building 1-19#, Development Ave 133, TongXiang Economic HiTech Zone, TongXiang, 314515, PR China; HangZhou GuSheng Technology Company Limited, XiangWang Ave 311118, HangZhou, 311121, PR China.
| | - XinHua Xu
- College of Environmental and Resource Sciences, ZheJiang University, YuHangTang Ave 866, HangZhou, ZheJiang Province, 310058, PR China.
| | - ZhiJian Zhang
- College of Environmental and Resource Sciences, ZheJiang University, YuHangTang Ave 866, HangZhou, ZheJiang Province, 310058, PR China; China Academy of West Region Development, ZheJiang University, YuHangTang Ave 866, HangZhou, 310058, PR China.
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Yin Y, Wang S, Zhang K, Li Y, Liu W, Zhang Q, Zhang X, Kong X, An S, Zhang R, Zhang Z. Klebsiella pneumoniae in the intestines of Musca domestica larvae can assist the host in antagonizing the poisoning of the heavy metal copper. BMC Microbiol 2023; 23:383. [PMID: 38049761 PMCID: PMC10694927 DOI: 10.1186/s12866-023-03082-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/23/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Musca domestica larvae are common saprophytes in nature, promoting the material-energy cycle in the environment. However, heavy metal pollution in the environment negatively affects their function in material circulation. Our previous research found that some intestinal bacteria play an important role in the development of housefly, but the responses of microbial community to heavy metal stresses in Musca domestica is less studied. RESULTS In this study, CuSO4, CuSO4-Klebsiella pneumoniae mixture and CuSO4-K. pneumoniae phage mixture were added to the larval diet to analyze whether K. pneumoniae can protect housefly larvae against Cu2+ injury. Our results showed that larval development was inhibited when were fed with CuSO4, the bacterial abundance of Providencia in the intestine of larvae increased. However, the inhibition effects of CuSO4 was relieved when K. pneumoniae mixed and added in larval diets, the abundance of Providencia decreased. Electron microscope results revealed that K. pneumoniae showed an obvious adsorption effect on copper ion in vitro. CONCLUSIONS Based on the results we assume that K. pneumoniae could adsorb Cu2+, reduce Cu2+ impact on gut community structure. Our study explains the role of K. pneumoniae antagonizing Cu2+, which could be applied as a probiotic to saprophytic bioantagonistic metal contamination.
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Affiliation(s)
- Yansong Yin
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Shumin Wang
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- School of Life Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
| | - Kexin Zhang
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Ying Li
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - WenJuan Liu
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Qian Zhang
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Xinyu Zhang
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Xinxin Kong
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Sha An
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China
| | - Ruiling Zhang
- School of Basic Medical Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China.
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, Shandong First Medical University (Shandong Academy of Medical Sciences), No. 619, Changchen Road, Taian, 271016, Shandong, China.
| | - Zhong Zhang
- School of Life Science, Shandong First Medical University (Shandong Academy of Medical Sciences), Taian, 271016, Shandong, China.
- Weifang Medical University, Weifang, 261021, Shandong, China.
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Zhao Z, Yang C, Gao B, Wu Y, Ao Y, Ma S, Jiménez N, Zheng L, Huang F, Tomberlin JK, Ren Z, Yu Z, Yu C, Zhang J, Cai M. Insights into the reduction of antibiotic-resistant bacteria and mobile antibiotic resistance genes by black soldier fly larvae in chicken manure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115551. [PMID: 37832484 DOI: 10.1016/j.ecoenv.2023.115551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
The increasing prevalence of antibiotic-resistant bacteria (ARB) from animal manure has raised concerns about the potential threats to public health. The bioconversion of animal manure with insect larvae, such as the black soldier fly larvae (BSFL, Hermetia illucens [L.]), is a promising technology for quickly attenuating ARB while also recycling waste. In this study, we investigated BSFL conversion systems for chicken manure. Using metagenomic analysis, we tracked ARB and evaluated the resistome dissemination risk by investigating the co-occurrence of antibiotic resistance genes (ARGs), mobile genetic elements (MGEs), and bacterial taxa in a genetic context. Our results indicated that BSFL treatment effectively mitigated the relative abundance of ARB, ARGs, and MGEs by 34.9%, 53.3%, and 37.9%, respectively, within 28 days. Notably, the transferable ARGs decreased by 30.9%, indicating that BSFL treatment could mitigate the likelihood of ARG horizontal transfer and thus reduce the risk of ARB occurrence. In addition, the significantly positive correlation links between antimicrobial concentration and relative abundance of ARB reduced by 44.4%. Moreover, using variance partition analysis (VPA), we identified other bacteria as the most important factor influencing ARB, explaining 20.6% of the ARB patterns. Further analysis suggested that antagonism of other bacteria on ARB increased by 1.4 times, while nutrient competition on both total nitrogen and crude fat increased by 2.8 times. Overall, these findings provide insight into the mechanistic understanding of ARB reduction during BSFL treatment of chicken manure and provide a strategy for rapidly mitigating ARB in animal manure.
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Affiliation(s)
- Zhengzheng Zhao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Chongrui Yang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Bingqi Gao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Yushi Wu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Yue Ao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Shiteng Ma
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Núria Jiménez
- Department of Chemical Engineering, Vilanova i la Geltrú School of Engineering (EPSEVG), Universitat Politècnica de Catalunya·BarcelonaTech, Vilanova i la Geltrú 08800, Spain
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Feng Huang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | | | - Zhuqing Ren
- Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China; Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China
| | - Chan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China.
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, PR China.
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9
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Zhao Z, Yu C, Yang C, Gao B, Jiménez N, Wang C, Li F, Ao Y, Zheng L, Huang F, Tomberlin JK, Ren Z, Yu Z, Zhang J, Cai M. Mitigation of antibiotic resistome in swine manure by black soldier fly larval conversion combined with composting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 879:163065. [PMID: 36966826 DOI: 10.1016/j.scitotenv.2023.163065] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 05/17/2023]
Abstract
The increasing prevalence of antibiotic resistance genes (ARGs) in animal manure has attracted considerable attention because of their potential contribution to the development of multidrug resistance worldwide. Insect technology may be a promising alternative for the rapid attenuation of ARGs in manure; however, the underlying mechanism remains unclear. This study aimed to evaluate the effects of black soldier fly (BSF, Hermetia illucens [L.]) larvae conversion combined with composting on ARGs dynamics in swine manure and to uncover the mechanisms through metagenomic analysis. Compared to natural composting (i.e. without BSF), BSFL conversion combined with composting reduced the absolute abundance of ARGs by 93.2 % within 28 days. The rapid degradation of antibiotics and nutrient reformulation during BSFL conversion combined with composting indirectly altered manure bacterial communities, resulting in a lower abundance and richness of ARGs. The number of main antibiotic-resistant bacteria (e.g., Prevotella, Ruminococcus) decreased by 74.9 %, while their potential antagonistic bacteria (e.g., Bacillus, Pseudomonas) increased by 128.7 %. The number of antibiotic-resistant pathogenic bacteria (e.g., Selenomonas, Paenalcaligenes) decreased by 88.3 %, and the average number of ARGs carried by each human pathogenic bacterial genus declined by 55.8 %. BSF larvae gut microbiota (e.g., Clostridium butyricum, C. bornimense) could help reduce the risk of multidrug-resistant pathogens. These results provide insight into a novel approach to mitigate multidrug resistance from the animal industry in the environment by using insect technology combined with composting, in particular in light of the global "One Health" requirements.
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Affiliation(s)
- Zhengzheng Zhao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Chan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Chongrui Yang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Bingqi Gao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Núria Jiménez
- Department of Chemical Engineering, Vilanova i la Geltrú School of Engineering (EPSEVG), Universitat Politècnica de Catalunya · BarcelonaTech, Vilanova i la Geltrú 08800, Spain
| | - Chen Wang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Fang Li
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Yue Ao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Feng Huang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | | | - Zhuqing Ren
- Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China; Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of the Ministry of Education, College of Animal Science, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Hubei Hongshan Laboratory, Wuhan 430070, Hubei, China.
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10
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She W, Xiao Q, Meng Y, Zhao P, Wu C, Huang F, Cai M, Zhang J, Yu Z, Ur Rehman K, Peng D, Zheng L. Isolated and identified pathogenic bacteria from black soldier fly larvae with "soft rot" reared in mass production facilities and its incidence characteristics. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 163:85-95. [PMID: 37003117 DOI: 10.1016/j.wasman.2023.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/07/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
The black soldier fly larvae (BSFL) can transform organic waste into high-end proteins, lipids, chitin, biodiesel, and melanin at an industrial scale. But scaling up of its production capacity has also posed health risks to the insect itself. In this investigation, larval "soft rot" which is occurring in mass production facilities that cause larval developmental inhibition and a certain degree of death was reported. Responsible pathogen GX6 was isolated from BSFL with "soft rot" and identified to be Paenibacillus thiaminolyticus. No obvious impact on larval growth was observed when treated with GX6 spores, whereas mortality of 6-day-old BSFL increased up to 29.33% ± 2.05% when GX6 vegetative cells (1 × 106 cfu/g) were inoculated into the medium. Moreover, higher temperature further enhanced the BSFL mortality and suppressed larval development, but increasing substrate moisture showed the opposite effect. The middle intestine of infected larvae became swollen and transparent after dissection and examination. Transmission electron microscopy (TEM) observation indicated that GX6 had destroyed the peritrophic matrix and intestinal microvilli and damaged epithelial cells of larval gut. Furthermore, 16S rRNA gene sequencing analysis of intestinal samples revealed that gut microflora composition was significantly altered by GX6 infection as well. It can be noticed that Dysgonomonas, Morganella, Myroides, and Providencia bacteria became more numerous in the intestines of GX6-infected BSFL as compared to controls. This study will lay foundations for efficient control of "soft rot" and promote healthy development of the BSFL industry to contribute to organic waste management and circular economy.
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Affiliation(s)
- Wangjun She
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Qi Xiao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Ying Meng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Peng Zhao
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Chuanliang Wu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Feng Huang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Kashif Ur Rehman
- Department of Microbiology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan; DIL Deutsches Institut für Lebensmitteltechnik e. V. - German Institute of Food Technologies, Quakenbrück, Germany; Poultry Research Institute, Rawalpindi, Livestock and Dairy Development Department, Punjab, Pakistan
| | - Donghai Peng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China; Hubei Hongshan Laboratory, Wuhan, PR China.
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11
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Zhang H, Zhang X, Chen M, Deng X, Pei Y, Zhang J, Chen H, Yang S. Biochar Can Improve Absorption of Nitrogen in Chicken Manure by Black Soldier Fly. Life (Basel) 2023; 13:life13040938. [PMID: 37109467 PMCID: PMC10144396 DOI: 10.3390/life13040938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/26/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
(1) Background: There is growing interest in using insects to treat nutrient-rich organic wastes, such as the black soldier fly (BSF), one of the most efficient organic waste recyclers for upcycling nutrients into the food system. Although biochar (BC) was shown to enhance nutrient retention and the final product quality during the composting of livestock and poultry manure in many previous studies, little information is available on the effect of BC on livestock manure bioconversion by black soldier fly larvae (BSFL). (2) Methods: This study investigated the effect of adding a small amount of BC to chicken manure (CM) on the bioconversion system of the black soldier fly (including N2O and NH3 emissions and the final distribution of nitrogen during the treatment process). (3) Results: The lowest N2O and NH3 emission and highest residual nitrogen in the substrate were observed in the 15% BC treatment. The highest bioconversion rate of CM (8.31%) and the peak of larval biomass was obtained in the 5% BC treatment. (4) Conclusions: The results demonstrate the feasibility of adding 5% BC to reduce pollution and achieve a satisfactory BSFL-based CM bioconversion efficiency.
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Affiliation(s)
- Haixu Zhang
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Xilu Zhang
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Mengxiao Chen
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Xin Deng
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Yaxin Pei
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Jiran Zhang
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Hongge Chen
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
| | - Sen Yang
- Department of Microbiology, College of Life Sciences, Henan Agricultural University, Key Laboratory of Agricultural Microbial Enzyme Engineering (Ministry of Agriculture), Zhengzhou 450002, China
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12
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Efremenko E, Senko O, Maslova O, Lyagin I, Aslanli A, Stepanov N. Destruction of Mycotoxins in Poultry Waste under Anaerobic Conditions within Methanogenesis Catalyzed by Artificial Microbial Consortia. Toxins (Basel) 2023; 15:toxins15030205. [PMID: 36977096 PMCID: PMC10058804 DOI: 10.3390/toxins15030205] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
To reduce the toxicity of modern feeds polluted by mycotoxins, various sorbents are added to them when feeding animals. A part of the mycotoxins is excreted from the body of animals with these sorbents and remains in the manure. As a result, bulk animal wastes containing mixtures of mycotoxins are formed. It is known that it is partially possible to decrease the initial concentration of mycotoxins in the process of anaerobic digestion (AD) of contaminated methanogenic substrates. The aim of this review was to analyze the recent results in destruction of mycotoxins under the action of enzymes present in cells of anaerobic consortia catalyzing methanogenesis of wastes. The possible improvement of the functioning of the anaerobic artificial consortia during detoxification of mycotoxins in the bird droppings is discussed. Particular attention was paid to the possibility of effective functioning of microbial enzymes that catalyze the detoxification of mycotoxins, both at the stage of preparation of poultry manure for methanogenesis and directly in the anaerobic process itself. The sorbents with mycotoxins which appeared in the poultry wastes composed one of the topics of interest in this review. The preliminary alkaline treatment of poultry excreta before processing in AD was considered from the standpoint of effectively reducing the concentrations of mycotoxins in the waste.
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Affiliation(s)
- Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Ilya Lyagin
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Aysel Aslanli
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
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13
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Gorrens E, Lecocq A, De Smet J. The Use of Probiotics during Rearing of Hermetia illucens: Potential, Caveats, and Knowledge Gaps. Microorganisms 2023; 11:microorganisms11020245. [PMID: 36838211 PMCID: PMC9960648 DOI: 10.3390/microorganisms11020245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Given the novelty of the industrial production of the edible insects sector, research has primarily focused on the zootechnical performances of black soldier fly larvae (BSFL) in response to different substrates and rearing conditions as a basis to optimize yield and quality. However recently, research has started to focus more on the associated microbes in the larval digestive system and their substrates and the effect of manipulating the composition of these communities on insect performance as a form of microbiome engineering. Here we present an overview of the existing literature on the use of microorganisms during rearing of the BSFL to optimize the productivity of this insect. These studies have had variable outcomes and potential explanations for this variation are offered to inspire future research that might lead to a better success rate for microbiome engineering in BSFL.
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Affiliation(s)
- Ellen Gorrens
- Research Group for Insect Production and Processing, Department of Microbial and Molecular Systems (M²S), KU Leuven, 2440 Geel, Belgium
| | - Antoine Lecocq
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Denmark
| | - Jeroen De Smet
- Research Group for Insect Production and Processing, Department of Microbial and Molecular Systems (M²S), KU Leuven, 2440 Geel, Belgium
- Correspondence:
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14
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Rehman KU, Hollah C, Wiesotzki K, Rehman RU, Rehman AU, Zhang J, Zheng L, Nienaber T, Heinz V, Aganovic K. Black soldier fly, Hermetia illucens as a potential innovative and environmentally friendly tool for organic waste management: A mini-review. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2023; 41:81-97. [PMID: 35730793 PMCID: PMC9925914 DOI: 10.1177/0734242x221105441] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Indexed: 05/24/2023]
Abstract
The application of black soldier fly (BSF), Hermetia illucens based technology to process organic wastes presents a practical option for organic waste management by producing feed materials (protein, fat), biodiesel, chitin and biofertilizer. Therefore, BSF organic wastes recycling is a sustainable and cost-effective process that promotes resource recovery, and generates valuable products, thereby creating new economic opportunities for the industrial sector and entrepreneurs. Specifically, we discussed the significance of BSF larvae (BSFL) in the recycling of biowaste. Despite the fact that BSFL may consume a variety of wastes materials, whereas, certain lignocellulosic wastes, such as dairy manure, are deficient in nutrients, which might slow BSFL development. The nutritional value of larval feeding substrates may be improved by mixing in nutrient-rich substrates like chicken manure or soybean curd residue, for instance. Similarly, microbial fermentation may be used to digest lignocellulosic waste, releasing nutrients that are needed for the BSFL. In this mini-review, a thorough discussion has been conducted on the various waste biodegraded by the BSFL, their co-digestion and microbial fermentation of BSFL substrate, as well as the prospective applications and safety of the possible by-products that may be generated at the completion of the treatment process. Furthermore, this study examines the present gaps and challenges on the direction to the efficient application of BSF for waste management and the commercialization of its by-products.
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Affiliation(s)
- Kashif ur Rehman
- Department of Microbiology,
Faculty of Veterinary and Animal Sciences, Th Islamia University of
Bahawalpur, Pakistan
- Poultry Research Institute
Rawalpindi, Livestock and Dairy Development Department, Punjab,
Pakistan
- State Key Laboratory of
Agricultural Microbiology, National Engineering Research Center of Microbial
Pesticides, College of Life Science and Technology, Huazhong Agricultural
University, Wuhan, PR China
| | - Clemens Hollah
- DIL Deutsches Institut für
Lebensmitteltechnik e. V. – German Institute of Food Technologies,
Quakenbruck, Germany
| | - Karin Wiesotzki
- DIL Deutsches Institut für
Lebensmitteltechnik e. V. – German Institute of Food Technologies,
Quakenbruck, Germany
| | - Rashid ur Rehman
- Khwaja Fareed University of
Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | | | - Jibin Zhang
- State Key Laboratory of
Agricultural Microbiology, National Engineering Research Center of Microbial
Pesticides, College of Life Science and Technology, Huazhong Agricultural
University, Wuhan, PR China
| | - Longyu Zheng
- State Key Laboratory of
Agricultural Microbiology, National Engineering Research Center of Microbial
Pesticides, College of Life Science and Technology, Huazhong Agricultural
University, Wuhan, PR China
| | - Theresa Nienaber
- DIL Deutsches Institut für
Lebensmitteltechnik e. V. – German Institute of Food Technologies,
Quakenbruck, Germany
| | - Volker Heinz
- DIL Deutsches Institut für
Lebensmitteltechnik e. V. – German Institute of Food Technologies,
Quakenbruck, Germany
| | - Kemal Aganovic
- DIL Deutsches Institut für
Lebensmitteltechnik e. V. – German Institute of Food Technologies,
Quakenbruck, Germany
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15
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Li H, Xu X, Zhang M, Zhang Y, Zhao Y, Jiang X, Xin X, Zhang Z, Zhang R, Gui Z. Accelerated degradation of cellulose in silkworm excrement by the interaction of housefly larvae and cellulose-degrading bacteria. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116295. [PMID: 36150354 DOI: 10.1016/j.jenvman.2022.116295] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
The environmental pollution caused by silkworm (Bombyx mori) excrement is prominent, and rich in refractory cellulose is the bottleneck restricting the efficient recycling of silkworm excrement. This study was performed to investigate the effects of housefly larvae vermicomposting on the biodegradation of cellulose in silkworm excrement. After six days, a 58.90% reduction of cellulose content in treatment groups was observed, which was significantly higher than 11.5% of the control groups without housefly larvae. Three cellulose-degrading bacterial strains were isolated from silkworm excrement, which were identified as Bacillus licheniformis, Bacillus amyloliquefaciens, and Bacillus subtilis based on 16S rRNA gene sequence analysis. These three bacterial stains had a high cellulose degradation index (HC value ranged to between 1.86 and 5.97 and FPase ranged from 5.07 U/mL to 7.31 U/mL). It was found that housefly larvae increased the abundance of cellulose-degrading bacterial genus (Bacillus and Pseudomonas) by regulating the external environmental conditions (temperature and pH). Carbohydrate metabolism was the bacterial communities' primary function during vermicomposting based on the PICRUSt. The results of Tax4Fun indicated that the abundance of endo-β-1,4-glucanase and exo-β-1,4-glucanase increased rapidly and maintained at a higher level in silkworm excrement due to the addition of housefly larvae, which contributed to the accelerated degradation of cellulose in silkworm excrement. The finding of this investigation showed that housefly larvae can significantly accelerate the degradation of cellulose in silkworm excrement by increasing the abundance of cellulose-degrading bacterial genera and cellulase.
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Affiliation(s)
- Hao Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Xueming Xu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Minqi Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Yuanhao Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Ying Zhao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Xueping Jiang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Xiangdong Xin
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China
| | - Zhendong Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Ran Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China
| | - Zhongzheng Gui
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, Jiangsu, China; Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212100, Jiangsu, China.
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16
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Zhang G, Xu Y, Zhang S, Xu A, Meng Z, Ge H, Li J, Liu Y, Ma D. Transformation Capability Optimization and Product Application Potential of Proteatia brevitarsis (Coleoptera: Cetoniidae) Larvae on Cotton Stalks. INSECTS 2022; 13:1083. [PMID: 36554993 PMCID: PMC9781705 DOI: 10.3390/insects13121083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Cotton stalks (CS) are a potential agricultural biomass resource. We investigated the use of CS as a feed for Proteatia brevitarsis Lewis larvae and the resulting frass (larvae dung-sand) as a fertilizer. Based on a three-factor experiment (decomposition inoculant, fermentation duration, and cattle manure ratio), the optimal parameters for the transformation of CS using P. brevitarsis larvae were determined as 40-50% of cattle manure, the use of VT inoculant and a fermentation duration of 25-30 days. Regarding the products of the transformation, the protein content of the larval body was as high as 52.49%, and the fat content was 11.7%, which is a suitable-quality insect protein source. The organic matter content of larvae dung-sand was 54.8%, and the content of total nitrogen, phosphorus, and potassium (TNPK) was 9.04%, which is twice more than that of the organic fertilizer standard (NY525-2021, Beijing, China, TNPK ≥ 4.0%), and larvae dung-sand has the potential of fertilizer application. Therefore, CS as a feed and fertilizer based on the transformation of P. brevitarsis larvae is feasible, and it is a highly efficient way to promote the utilization of both CS and cattle manure.
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Affiliation(s)
- Guangjie Zhang
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Yeshan Xu
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Shuai Zhang
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Andong Xu
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Zhuo Meng
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Hao Ge
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Jing Li
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
| | - Yusheng Liu
- College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China
| | - Deying Ma
- Engineering Research Centre of Cotton, Ministry of Education, Key Laboratory of the Pest Monitoring and Safety Control on Crop and Forest, College of Agronomy, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China
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17
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Potential Applications of Frass Derived from Black Soldier Fly Larvae Treatment of Food Waste: A Review. Foods 2022; 11:foods11172664. [PMID: 36076850 PMCID: PMC9455751 DOI: 10.3390/foods11172664] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
The disposal of large amounts of food waste has caused serious environmental pollution and financial losses globally. Compared to alternative disposal methods (landfills, incineration, and anaerobic digestion), composting by black soldier fly larvae (BSFL) is a promising alternative for food waste management. Despite extensive research into larval biomass, another valuable by-product generated from BSFL composting is BSFL frass. However, limited information is available for its potential application. The applications of BSFL frass can be intensified by understanding its physicochemical characteristics, benefits, and challenges of BSFL frass derived from food waste. BSFL frass is harvested after 9–23 days of the experiment, depending on the substrate used in the composting process. The generated BSFL frass could exceed 33% of the original weight of the substrate. The physicochemical characteristics of BSFL frass are as follows: the temperature after harvest is 24 °C to 27 °C, pH is 5.6–8.0, moisture content is 30 to 72%, C/N ratio is 8:1 to 27:1, high nitrogen, phosphorus, and potassium (NPK) content, and low heavy metal content. This paper reviews the characteristics, benefits, and application of BSFL frass. It will also investigate the challenges of using food waste substrates to produce BSFL frass, as well as the best way to pre-treat the food waste substrate and post-treat the BSFL frass.
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18
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Liu T, Klammsteiner T, Dregulo AM, Kumar V, Zhou Y, Zhang Z, Awasthi MK. Black soldier fly larvae for organic manure recycling and its potential for a circular bioeconomy: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:155122. [PMID: 35405225 DOI: 10.1016/j.scitotenv.2022.155122] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Livestock farming and its products provide a diverse range of benefits for our day-to-day life. However, the ever-increasing demand for farmed animals has raised concerns about waste management and its impact on the environment. Worldwide, cattle produce enormous amounts of manure, which is detrimental to soil properties if poorly managed. Waste management with insect larvae is considered one of the most efficient techniques for resource recovery from manure. In recent years, the use of black soldier fly larvae (BSFL) for resource recovery has emerged as an effective method. Using BSFL has several advantages over traditional methods, as the larvae produce a safe compost and extract trace elements like Cu and Zn. This paper is a comprehensive review of the potential of BSFL for recycling organic wastes from livestock farming, manure bioconversion, parameters affecting the BSFL application on organic farming, and process performance of biomolecule degradation. The last part discusses the economic feasibility, lifecycle assessment, and circular bioeconomy of the BSFL in manure recycling. Moreover, it discusses the future perspectives associated with the application of BSFL. Specifically, this review discusses BSFL cultivation and its impact on the larvae's physiology, gut biochemical physiology, gut microbes and metabolic pathways, nutrient conservation and global warming potential, microbial decomposition of organic nutrients, total and pathogenic microbial dynamics, and recycling of rearing residues as fertilizer.
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Affiliation(s)
- Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Thomas Klammsteiner
- Department of Microbiology, University of Innsbruck, Technikerstrasse 25d, 6020 Innsbruck, Austria
| | - Andrei Mikhailovich Dregulo
- Federal State Budgetary Educational Institution of Higher Education "Saint-Petersburg State University" 7-9 Universitetskaya emb., 199034, Saint- Petersburg, Russia.
| | - Vinay Kumar
- Department of Biotechnology, Indian Institute of Technology (IIT) Roorkee, Roorkee 247667, Uttarakhand, India
| | - Yuwen Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
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19
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Jin N, Liu Y, Zhang S, Sun S, Wu M, Dong X, Tong H, Xu J, Zhou H, Guan S, Xu W. C/N-Dependent Element Bioconversion Efficiency and Antimicrobial Protein Expression in Food Waste Treatment by Black Soldier Fly Larvae. Int J Mol Sci 2022; 23:ijms23095036. [PMID: 35563424 PMCID: PMC9104233 DOI: 10.3390/ijms23095036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/24/2022] [Accepted: 04/25/2022] [Indexed: 12/29/2022] Open
Abstract
The black soldier fly (BSF), Hermetia illucens, has emerged as a promising species for waste bioconversion and source of antimicrobial proteins (AMPs). However, there is a scarcity of research on the element transformation efficiency and molecular characterization of AMPs derived from waste management. Here, food waste treatment was performed using BSF larvae (BSFL) in a C/N ratio of 21:1−10:1, with a focus on the C/N-dependent element bioconversion, AMP antimicrobial activity, and transcriptome profiling. The C-larvae transformation rates were found to be similar among C/Ns (27.0−35.5%, p = 0.109), while the N-larvae rates were different (p = 0.001), with C/N 21:1−16:1 (63.5−75.0%) being higher than C/N 14:1−10:1 (35.0−45.7%). The C/N ratio did not alter the antimicrobial spectrum of AMPs, but did affect the activities, with C/N 21:1 being significantly lower than C/N 18:1−10:1. The lysozyme genes were found to be significantly more highly expressed than the cecropin, defensin, and attacin genes in the AMP gene family. Out of 51 lysozyme genes, C/N 18:1 and C/N 16:1 up-regulated (p < 0.05) 14 and 12 genes compared with C/N 21:1, respectively, corresponding to the higher activity of AMPs. Overall, the element bioconversion efficiency and AMP expression can be enhanced through C/N ratio manipulation, and the C/N-dependent transcriptome regulation is the driving force of the AMP difference.
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Affiliation(s)
- Ning Jin
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
| | - Yanxia Liu
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
| | - Shouyu Zhang
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
| | - Shibo Sun
- School of Life Science and Pharmaceutical Sciences, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (S.S.); (J.X.)
| | - Minghuo Wu
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education China, Dalian University of Technology, Dalian 116024, China
| | - Xiaoying Dong
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
| | - Huiyan Tong
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
| | - Jianqiang Xu
- School of Life Science and Pharmaceutical Sciences, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (S.S.); (J.X.)
| | - Hao Zhou
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education China, Dalian University of Technology, Dalian 116024, China
| | - Shui Guan
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Weiping Xu
- School of Ocean Science and Technology & Panjin Institute of Industrial Technology, Dalian University of Technology, Panjin Campus, Panjin 124221, China; (N.J.); (Y.L.); (S.Z.); (M.W.); (X.D.); (H.T.); (H.Z.)
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education China, Dalian University of Technology, Dalian 116024, China
- Correspondence:
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20
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Lopes IG, Yong JW, Lalander C. Frass derived from black soldier fly larvae treatment of biodegradable wastes. A critical review and future perspectives. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 142:65-76. [PMID: 35176600 DOI: 10.1016/j.wasman.2022.02.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/12/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Inadequately treated biodegradable waste is considered an environmental, social and economic threat worldwide, which call for great attention. Waste treatment with larvae of the black soldier fly (BSF, Hermetia illucens) complies with the concepts of circular economy, as it enables the transformation of these wastes into marketable products, closing loops and promoting circularity. The processing residues of the treatment (frass) is constantly generated in waste management facilities in large volumes, and this product can be used as an organic fertilizer in agriculture, stimulating a transition to a circular economy. However, many aspects related to frass are still unknown, such as its varying composition of nutrients, microorganisms and bioactive compounds, its post-processing requirements for improved biological stabilization, its behavior in the soil and action in the plants' metabolism, among other aspects. In this review article, we highlight the potential of frass from BSF larvae treatment of biodegradable waste in the world market regarding its possible use as a fertilizer, summarize recent results with this novel product and point towards future research perspectives.
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Affiliation(s)
| | - Jean Wh Yong
- Department of Energy and Technology, Swedish University of Agricultural Sciences, Box 7032, 75007 Uppsala, Sweden
| | - Cecilia Lalander
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp, Sweden.
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21
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Luo X, Yang Q, Lin Y, Tang Z, Tomberlin JK, Liu W, Huang Y. Black soldier fly larvae effectively degrade lincomycin from pharmaceutical industry wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 307:114539. [PMID: 35085969 DOI: 10.1016/j.jenvman.2022.114539] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/17/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Lincomycin fermentation residues (LFR) are the byproducts from the pharmaceutical industry, and contain high concentrations of antibiotics that could pose a threat to the environment. Here, we report that black soldier fly larvae (BSFL) and associated microbiota can effectively degrade LFR and accelerate the degradation of lincomycin in LFR. The degradation rate of lincomycin in LFR can reach 84.9% after 12 days of BSFL-mediated bioconversion, which is 3-fold greater than that accomplished with natural composting. The rapid degradation was partially carried out by the BSFL-associated microbiota, contributing 22.0% of the degradation in the final composts. Based on microbiome analysis, we found that the structure of microbiota from both BSFL guts and BSFL composts changed significantly during the bioconversion, and that several bacterial genera were correlated with lincomycin degradation. The roles of the associated microbiota in the degradation were further verified by the ability of two larval intestinal bacterial isolates and one bacterial isolate from BSFL composts to lincomycin degradation. The synergy between BSFL and the isolated strains resulted in a 2-fold increase in degradation compared to that achieved by microbial degradation alone. Furthermore, we determined that the degradation was correlated with the induction of several antibiotic resistant genes (ARGs) associated with lincomycin degradation in larval guts and BSFL composts. Moreover, the environmental conditions in the BSFL composts were found to be conducive to the degradation. In conclusion, these findings demonstrate that the BSFL-mediated bioconversion of LFR could effectively reduce residual lincomycin and that the associated microbiota play crucial roles in the process.
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Affiliation(s)
- Xingyu Luo
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qian Yang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Yueting Lin
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China; Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Zhijun Tang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jeffery K Tomberlin
- Department of Entomology, Texas A&M University, 400 Bizzell St., College Station, TX, 77843, USA
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.
| | - Yongping Huang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China.
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22
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Yang C, Ma S, Li F, Zheng L, Tomberlin JK, Yu Z, Zhang J, Yu C, Fan M, Cai M. Characteristics and mechanisms of ciprofloxacin degradation by black soldier fly larvae combined with associated intestinal microorganisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:151371. [PMID: 34740641 DOI: 10.1016/j.scitotenv.2021.151371] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/05/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
Antibiotics are challenging to degrade and are excreted by livestock which results in environmental pollution. In this paper, we demonstrated that environmentally friendly manure bioremediation performed by black soldier fly larvae (BSFL) is a wise alternative, which could effectively degrade ciprofloxacin (CIP) by approached 85.48% in artificial diet and 84.22% in poultry manure within 12 days. They are up to 2.5-4.0 fold more than that achieved by natural fermentation. The five CIP-degrading strains were isolated from the larval gut, two of which, named by Klebsiella pneumoniae BSFLG-CIP1 and Proteus mirabilis BSFLG-CIP5, could degraded CIP by nearly 98.22% and 97.83% in vitro, respectively. When the intestinal isolates were re-inoculated to sterile BSFL system, the degradation level significantly increased up to 82.38%, comparing with the sterile BSFL system (21.76%). It is proved that the larvae intestinal microbiota might carry out this highly-efficient CIP-degradation. Furthermore, seven possible metabolites were identified for CIP-degradation in vitro, and they were referring three main potential degrading mechanisms of hydroxylize, piperazine ring substitute and cleavage, and quinoline ring cleavage. In conclusion, the present study may provide a strategy to reduce antibiotics pollution in animal waste through bioremediation with BSFL and adjusted intestinal microbes.
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Affiliation(s)
- Chongrui Yang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Shiteng Ma
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Fang Li
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Longyu Zheng
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | | | - Ziniu Yu
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Chan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Mingxia Fan
- Renmin Hospital of Wuhan University, Wuhan 430060, PR China.
| | - Minmin Cai
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
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23
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Liew CS, Yunus NM, Chidi BS, Lam MK, Goh PS, Mohamad M, Sin JC, Lam SM, Lim JW, Lam SS. A review on recent disposal of hazardous sewage sludge via anaerobic digestion and novel composting. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:126995. [PMID: 34482076 DOI: 10.1016/j.jhazmat.2021.126995] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/13/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
The high investment cost required by modern treatment technologies of hazardous sewage sludge such as incineration and anaerobic digestion have discouraged their application by many developing countries. Hence, this review elucidates the status, performances and limitations of two low-cost methods for biological treatment of hazardous sewage sludge, employing vermicomposting and black soldier fly larvae (BSFL). Their performances in terms of carbon recovery, nitrogen recovery, mass reduction, pathogen destruction and heavy metal stabilization were assessed alongside with the mature anaerobic digestion method. It was revealed that vermicomposting and BSFL were on par with anaerobic digestion for carbon recovery, nitrogen recovery and mass reduction. Thermophilic anaerobic digestion was found superior in pathogen destruction because of its high operational temperature. Anaerobic digestion also had proven its ability to stabilize heavy metals, but no conclusive finding could confirm similar application from vermicomposting or BSFL treatment. However, the addition of co-substrates or biochar during vermicomposting or BSFL treatment may show synergistic effects in stabilizing heavy metals as demonstrated by anaerobic digestion. Moreover, vermicomposting and BSFL valorization had manifested their potentialities as the low-cost alternatives for treating hazardous sewage sludge, whilst producing value-added feedstock for biochemical industries.
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Affiliation(s)
- Chin Seng Liew
- Department of Fundamental and Applied Sciences, HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Normawati M Yunus
- Centre of Research in Ionic Liquids (CORIL), Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Boredi Silas Chidi
- Bioresource Engineering Research Group (BioERG), Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa
| | - Man Kee Lam
- Department of Chemical Engineering, HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Mardawani Mohamad
- Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Jeli Campus, 17600 Jeli, Kelantan, Malaysia
| | - Jin Chung Sin
- Department of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia
| | - Sze Mun Lam
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, 31900 Perak, Malaysia
| | - Jun Wei Lim
- Department of Fundamental and Applied Sciences, HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.
| | - Su Shiung Lam
- Pyrolysis Technology Research Group, Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
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Purkayastha D, Sarkar S. Black soldier fly larvae for treatment and segregation of commingled municipal solid waste at different environmental conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 302:114060. [PMID: 34749077 DOI: 10.1016/j.jenvman.2021.114060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/30/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
The commingled nature of the municipal solid waste in many developing nations is one of the primary reasons behind the failure to its successful management. Although there are technologies to effectively treat and process well-segregated and classified waste, they are ineffective in managing the commingled waste. Commingled waste has neither calorific value enough to support waste-to-energy operations nor is it suitable for producing quality compost to generate market value. In this article, a novel Black Soldier Fly Larva (BSFL) -based technology has been proposed and tested to auto-segregate and treat the biodegradable fraction of the Commingled Municipal Solid Waste (CMSW). Several BSFL feeding experiments on five different CMSW compositions were conducted at various temperatures and relative humidity conditions. BSFL could selectively consume the biodegradable fraction of the CMSW to convert it into its body mass and separate itself from the rest of the waste, which mainly consisted of inert and recyclable waste fractions that can be further treated using appropriate waste treatment technology. The mature larvae or the pre-pupae grown at the expense of the biodegradable waste fraction can find several commercial uses. The larvae's consumption rate and weight gain were dependent on the environmental conditions; 30 °C and relative humidity of 65-75% provided the highest consumption rate and most significant weight gain. The batch experiments in the laboratory proved that BSFL could be promising for the treatment of CMSW. The experimental data presented may help design a process for further scaling up an effective treatment method for CMSW, which might benefit many developing nations in managing their waste effectively and economically.
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Affiliation(s)
- Debasree Purkayastha
- Department of Civil Engineering, Indian Institute of Technology Roorkee, Uttarakhand, 247667, India.
| | - Sudipta Sarkar
- Department of Civil Engineering, Indian Institute of Technology Roorkee, Uttarakhand, 247667, India.
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25
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Wang X, Lyu T, Dong R, Wu S. Revealing the link between evolution of electron transfer capacity of humic acid and key enzyme activities during anaerobic digestion. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 301:113914. [PMID: 34628280 DOI: 10.1016/j.jenvman.2021.113914] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/19/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
Humic acid (HA) is an important active compound formed during anaerobic digestion process, with a complex structure and dynamic electron transfer capacity (ETC). However, the mechanisms by which these macromolecular organic compounds dynamically interact with the microbial anaerobic digestion process at different operating temperatures are still unclear. In this study, the link between the evolution of the ETC of HAs and the microbial community under mesophilic and thermophilic conditions was investigated. The results showed an increasing trend in the ETC of HAs in both mesophilic (671-1479 μmol gHA-1) and thermophilic (774-1506 μmol gHA-1) anaerobic digestion (AD) until day 25. The ETC was positively correlated with the bacterial community of hydrolytic and acidogenic phases, but negatively correlated with the archaeal community of the methanogenic phase. Furthermore, the relationship between ETC and key enzyme activity was explored using a co-occurrence network analysis. HAs revealed a high potential to promote key enzyme activities during hydrolysis (amylase and protease) and acidification (acetate kinase, butyrate kinase, and phosphotransacetylase) while inhibiting the key enzyme activity in the methanogenic phase during the anaerobic digestion process. Moreover, HAs formed under thermophilic conditions had a greater influence on key enzyme activities than those formed under mesophilic conditions. This study advances our understanding of the mechanisms underlying the influence of HAs on anaerobic digestion performance.
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Affiliation(s)
- Xiqing Wang
- Key Laboratory of Clean Utilization Technology for Renewable Energy, Ministry of Agriculture, College of Engineering, China Agricultural University, 100083, Beijing, PR China
| | - Tao Lyu
- Cranfield Water Science Institute, Cranfield University, College Road, Cranfield, Bedfordshire, MK43 0AL, UK
| | - Renjie Dong
- Key Laboratory of Clean Utilization Technology for Renewable Energy, Ministry of Agriculture, College of Engineering, China Agricultural University, 100083, Beijing, PR China
| | - Shubiao Wu
- Department of Agroecology, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark.
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Li X, Zhou S, Zhang J, Zhou Z, Xiong Q. Directional Changes in the Intestinal Bacterial Community in Black Soldier Fly ( Hermetia illucens) Larvae. Animals (Basel) 2021; 11:ani11123475. [PMID: 34944253 PMCID: PMC8697953 DOI: 10.3390/ani11123475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 12/18/2022] Open
Abstract
Black soldier fly (BSF) larvae, Hermetia illucens (Diptera: Stratiomyidae) have emerged as an efficient system for the bioconversion of organic waste. Intestinal microorganisms are involved in several insect functions, including the development, nutrition, and physiology of the host. In order to transform the intestinal bacterial community of BSF directionally, six different potential functional strains (Lysinibacillus sphaericus, Proteus mirabilis, Citrobacter freundii, Pseudocitrobacter faecalis, Pseudocitrobacter anthropi, and Enterococcus faecalis) were added to aseptic food waste, and aseptic food waste was used without inoculants as a blank control to evaluate the changes in the intestinal microbiota of BSF under artificial intervention conditions. These six strains (which were isolated from the larval intestinal tract in selective media and then identified and screened) may be considered responsible for the functional characteristics of larvae. The results imply that the increase in the abundance of Lysinibacillus in the experimental group that was exposed to Lysinibacillus sphaericus was significantly different to the other groups (p < 0.05). The results revealed that it is feasible to transform the intestinal microbiota of BSF directionally; there are differences in the proliferation of different strains in the intestine of BSF.
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Affiliation(s)
- Xinfu Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China; (X.L.); (S.Z.); (Z.Z.)
| | - Shen Zhou
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China; (X.L.); (S.Z.); (Z.Z.)
| | - Jing Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China;
| | - Zhihao Zhou
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China; (X.L.); (S.Z.); (Z.Z.)
| | - Qiang Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China; (X.L.); (S.Z.); (Z.Z.)
- Correspondence:
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Abstract
Black soldier fly (BSF) larvae may play a role in a circular economy by upcycling low-value organic streams into high value biomass. In this paper, the capacity of BSF larvae to process 12 organic side-streams (mono-streams) and two standard substrates (chicken start mash and Gainesville diet) was investigated. Survival, larval mass, feed conversion ratio, and waste reduction were evaluated in relation to the proximate composition of the side-streams used. Survival rates larger than 80% were observed for 10 of the organic mono-streams and the two standard substrates. Maximum mean larval weight ranged from 38.3 mg up to 176.4 mg regardless of high survival and was highly correlated with substrate crude protein content. Feed conversion ratio (range 1.58–8.90) and waste reduction (range 17.0–58.9%) were similar to values reported in other studies in the literature. On low protein substrates (e.g., apple pulp), survival rates remained high, however, possibly due to protein deficiency, limited larval growth was observed. It is concluded that several low value organic side-streams can successfully be processed by BSF larvae, thereby opening the possibility of lowering the costs of BSF farming. Potentially mixing nutritionally distinct mono-streams into a mixed substrate might improve BSF performance. However, more research is needed for optimizing diets to guarantee production of BSF larvae of constant yield and quality.
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Wu N, Liang J, Wang X, Xie S, Xu X. Copper stimulates the incidence of antibiotic resistance, metal resistance and potential pathogens in the gut of black soldier fly larvae. J Environ Sci (China) 2021; 107:150-159. [PMID: 34412778 DOI: 10.1016/j.jes.2021.02.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 06/13/2023]
Abstract
The black soldier fly larvae (BSFL) have been successfully applied to treat various organic wastes. However, the impacts of heavy metals on antibiotic resistance in the BSFL guts are poorly understood. Here, we investigated the effect of copper (exposure concentrations of 0, 100 and 800 mg/kg) on the antibiotic and metal resistance profiles in BSFL guts. A total of 83 antibiotic resistance genes (ARGs), 18 mobile genetic elements (MGEs) and 6 metal resistance genes (MRGs) were observed in larval gut samples. Exposure to Cu remarkably reduced the diversity of ARGs and MGEs, but significantly enhanced the abundances of gut-associated ARGs and MRGs. The levels of MRGs copA, czcA and pbrT were dramatically strengthened after Cu exposure as compared with CK (increased by 2.8-13.5 times). Genera Enterococcus acted as the most predominant potential host of multiple ARG, MGE and MRG subtypes. Meanwhile, high exposure to Cu aggravated the enrichment of potential pathogens in BSFL guts, especially for Escherichia, Enterococcus and Salmonella species. The mantel test and procrustes analysis revealed that the gut microbial communities could be a key determinant for antibiotic and metal resistance. However, no significant positive links were observed between MGEs and ARGs or MRGs, possibly suggesting that MGEs did not play a crucial role in shaping the ARGs or MRGs in BSFL guts under the stress of Cu. These findings extend our understanding on the impact of heavy metals on the gut-associated antibiotic and metal resistome of BSFL.
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Affiliation(s)
- Nan Wu
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Jiaqi Liang
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Xiaobo Wang
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin 300384, China
| | - Shiyu Xie
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Xiaoyan Xu
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin 300384, China.
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Matos JS, de Aráujo LP, Allaman IB, Lôbo IP, de Oliva ST, Tavares TM, de Almeida Neto JA. Evaluation of the reduction of methane emission in swine and bovine manure treated with black soldier fly larvae (Hermetia illucens L.). ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:480. [PMID: 34240260 DOI: 10.1007/s10661-021-09252-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
The study evaluates Hermetia illucens larvae's ability to decrease direct methane emissions and nutrients from cattle and swine manure. Hermetia illucens larvae were put into fresh cattle and swine manure, and the same conditions, without larvae, for the control treatment were established. The methane emissions were measured until the first prepupae appeared. The methane emissions from the bioconversion of animal manure by Hermetia illucens larvae were up to 86% lower than in the control treatments (conventional storage). The cumulative methane emissions from cattle and swine manure bioconversion were 41.4 ± 10.5 mg CH4 kg-1 and 134.2 ± 17.3 mg CH4 kg-1, respectively. Moreover, Hermetia illucens larvae could reduce 32% of dry matter, 53% nitrogen, 14% phosphorus, and 42% carbon in swine manure. Meanwhile, in cattle manure, reductions of 17% of dry matter, 5% of nitrogen, 11% of phosphorus, and 15% of carbon and pH reductions in both swine and cattle manure were found. Thus, the production of larvae was higher in swine manure than cattle manure. Furthermore, the larvae frass from swine manure was appropriate for agricultural use, unlike the larvae frass from cattle manure requiring further processing. These results reveal the ability of Hermetia illucens larvae to mitigate methane emissions from animal manure and show it to be a promising technology for manure treatment, with great potential to promote a circular economy in the livestock sector.
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Affiliation(s)
- Joan Sanchez Matos
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil.
| | - Lara Pinto de Aráujo
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Ivan Bezerra Allaman
- Department of Exact and Technology Sciences, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Ivon Pinheiro Lôbo
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
| | - Sergio Telles de Oliva
- Laboratory of Environmental Analytical Chemistry, Chemistry Institute (LAQUAM), Universidade Federal da Bahia (UFBA), Campus Universitário de Ondina, R. Barão de Jeremoabo 147, Salvador, BA, 40170-115, Brazil
| | - Tania Mascarenhas Tavares
- Laboratory of Environmental Analytical Chemistry, Chemistry Institute (LAQUAM), Universidade Federal da Bahia (UFBA), Campus Universitário de Ondina, R. Barão de Jeremoabo 147, Salvador, BA, 40170-115, Brazil
| | - Jose Adolfo de Almeida Neto
- Bioenergy and Environment Group, Universidade Estadual de Santa Cruz, Jorge Amado Highway, Km 16, Ilheus, BA, 45662-900, Brazil
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30
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Moruzzo R, Mancini S, Guidi A. Edible Insects and Sustainable Development Goals. INSECTS 2021; 12:insects12060557. [PMID: 34203968 PMCID: PMC8232599 DOI: 10.3390/insects12060557] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/24/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary The United Nations Sustainable Development Goals (SDGs), seventeen urgent topics of action by all country, aim to reach ambitious and hopefully targets, such as peace and prosperity for people and the planet, now and into the future. Edible insects were individuated as a potential response to one of the major challenges of our times: increasing food production while decreasing environmental impact. In this review, the “insect idea” was linked to the single SDGs in order to express its potentiality. Likewise, indirect linking between insect farming and several SDGs was reported. Abstract The insect sector can become an important component of sustainable circular agriculture by closing nutrient and energy cycles, fostering food security, and minimising climate change and biodiversity loss, thereby contributing to SDGs. The high levels of the interaction of the insect sector with the SDGs is clearly illustrated inside the review, analysing all of the SDGs that can have direct and indirect effects on insects. Mapping the interactions between the SDGs goals and insect sector offers a starting point, from which it could be possible to define practical next steps for better insect policy.
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Affiliation(s)
- Roberta Moruzzo
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy; (R.M.); (A.G.)
| | - Simone Mancini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy; (R.M.); (A.G.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2216-803
| | - Alessandra Guidi
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy; (R.M.); (A.G.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
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31
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Gorrens E, Van Moll L, Frooninckx L, De Smet J, Van Campenhout L. Isolation and Identification of Dominant Bacteria From Black Soldier Fly Larvae ( Hermetia illucens) Envisaging Practical Applications. Front Microbiol 2021; 12:665546. [PMID: 34054771 PMCID: PMC8155639 DOI: 10.3389/fmicb.2021.665546] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/15/2021] [Indexed: 11/13/2022] Open
Abstract
This study aimed to establish a representative strain collection of dominant aerobic bacteria from black soldier fly larvae (Hermetia illucens, BSFL). The larvae were fed either chicken feed or fiber-rich substrates to obtain a collection of BSFL-associated microorganisms. Via an approach based on only considering the highest serial dilutions of BSFL extract (to select for the most abundant strains), a total of 172 bacteria were isolated. Identification of these isolates revealed that all bacteria belonged to either the Proteobacteria (66.3%), the Firmicutes (30.2%), the Bacteroidetes (2.9%) or the Actinobacteria (0.6%). Twelve genera were collected, with the most abundantly present ones (i.e., minimally present in at least three rearing cycles) being Enterococcus (29.1%), Escherichia (22.1%), Klebsiella (19.8%), Providencia (11.6%), Enterobacter (7.6%), and Morganella (4.1%). Our collection of dominant bacteria reflects largely the bacterial profiles of BSFL already described in literature with respect to the most important phyla and genera in the gut, but some differences can be noticed depending on substrate, biotic and abiotic factors. Furthermore, this bacterial collection will be the starting point to improve in vitro digestion models for BSFL, to develop mock communities and to find symbionts that can be added during rearing cycles to enhance the larval performances, after functional characterization of the isolates, for instance with respect to enzymatic potential.
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Affiliation(s)
- Ellen Gorrens
- Department of Microbial and Molecular Systems (M2S), Lab4Food, KU Leuven, Geel, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Laurence Van Moll
- Department of Microbial and Molecular Systems (M2S), Lab4Food, KU Leuven, Geel, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium.,Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Lotte Frooninckx
- Thomas More University of Applied Sciences, RADIUS, Geel, Belgium
| | - Jeroen De Smet
- Department of Microbial and Molecular Systems (M2S), Lab4Food, KU Leuven, Geel, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Leen Van Campenhout
- Department of Microbial and Molecular Systems (M2S), Lab4Food, KU Leuven, Geel, Belgium.,Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
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32
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Wu N, Wang X, Yan Z, Xu X, Xie S, Liang J. Transformation of pig manure by passage through the gut of black soldier fly larvae (Hermetia illucens): Metal speciation, potential pathogens and metal-related functional profiling. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 211:111925. [PMID: 33465627 DOI: 10.1016/j.ecoenv.2021.111925] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
Black soldier fly larvae (BSFL) have great potential in livestock manure disposal. However, the changes in metal speciation, microbial communities, potential pathogens during the manure transformation process by BSFL is still largely uncharacterized, as well as the underlying metal tolerance mechanism of larval gut microbiome. Here we used BSFL to convert pig manure (PM) into larval feces (BF), and investigated the metal and microbial changes in the conversion process. Physicochemical parameters (e.g. pH, electrical conductivity, total nitrogen, total phosphorus and total potassium) in PM were significantly altered compared to BF. After conversion, less than 10% of Cu and Zn were accumulated in larval bodies. The bioavailable fraction of Cu (88.3%-86.2%) and Zn (80.6%-82.3%) occupied as the primary form in PM and BF. Genera Enterococcus, Clostridium_sensu_stricto_1, Terrisporobacter and Romboutsia were substantially enriched in the final BSFL gut (GF) compared with initial gut (GI). BSFL transformation substantially reduced pathogen abundances (decreased by 89%) derived from pig manure. Functional genes involved in metal homeostasis and resistance (e.g. CutC, pcoC, cusR, zurR and zntB) were obviously strengthened (by 2.3-7.7 folds) in GF than in GI, which might partly explain the metal tolerance ability of BSFL during the livestock manure transformation process.
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Affiliation(s)
- Nan Wu
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Xiaobo Wang
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin 300384, China
| | - Zechuan Yan
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin 300384, China
| | - Xiaoyan Xu
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin 300384, China.
| | - Shiyu Xie
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
| | - Jiaqi Liang
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China
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Gold M, von Allmen F, Zurbrügg C, Zhang J, Mathys A. Identification of Bacteria in Two Food Waste Black Soldier Fly Larvae Rearing Residues. Front Microbiol 2020; 11:582867. [PMID: 33329446 PMCID: PMC7719680 DOI: 10.3389/fmicb.2020.582867] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/26/2020] [Indexed: 11/13/2022] Open
Abstract
Significant economic, environmental, and social impacts are associated with the avoidable disposal of foods worldwide. Mass-rearing of black soldier fly (Hermetia illucens) larvae using organic wastes and food- and agro-industry side products is promising for recycling resources within the food system. One current challenge of this approach is ensuring a reliable and high conversion performance of larvae with inherently variable substrates. Research has been devoted to increasing rearing performance by optimizing substrate nutrient contents and ratios, while the potential of the substrate and larval gut microbiota to increase rearing performance remains untapped. Since previous research has focused on gut microbiota, here, we describe bacterial dynamics in the residue (i.e., the mixture of frass and substrate) of black soldier fly larvae reared on two food wastes (i.e., canteen and household waste). To identify members of the substrate and residue microbiota, potentially associated with rearing performance, bacterial dynamics were also studied in the canteen waste without larvae, and after inactivation by irradiation of the initial microbiota in canteen waste. The food waste substrates had similar microbiota; both were dominated by common lactic acid bacteria. Inactivation of the canteen waste microbiota, which was dominated by Leuconostoc, Bacillus, and Staphylococcus, decreased the levels of all rearing performance indicators by 31-46% relative to canteen waste with the native microbiota. In both food waste substrates, larval rearing decreased the bacterial richness and changed the physicochemical residue properties and composition over the rearing period of 12 days, and typical members of the larval intestinal microbiota (i.e., Providencia, Dysgonomonas, Morganella, and Proteus) became more abundant, suggesting their transfer into the residue through excretions. Future studies should isolate members of these taxa and elucidate their true potential to influence black soldier fly mass-rearing performance.
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Affiliation(s)
- Moritz Gold
- Sustainable Food Processing Laboratory, Department of Health Science and Technology, Institute of Food, Nutrition and Health, ETH Zürich, Zurich, Switzerland
- Department Sanitation, Water and Solid Waste for Development (Sandec), Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Fabienne von Allmen
- Sustainable Food Processing Laboratory, Department of Health Science and Technology, Institute of Food, Nutrition and Health, ETH Zürich, Zurich, Switzerland
- Department Sanitation, Water and Solid Waste for Development (Sandec), Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Christian Zurbrügg
- Department Sanitation, Water and Solid Waste for Development (Sandec), Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Jibin Zhang
- State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbial Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Alexander Mathys
- Sustainable Food Processing Laboratory, Department of Health Science and Technology, Institute of Food, Nutrition and Health, ETH Zürich, Zurich, Switzerland
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34
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Surendra KC, Tomberlin JK, van Huis A, Cammack JA, Heckmann LHL, Khanal SK. Rethinking organic wastes bioconversion: Evaluating the potential of the black soldier fly (Hermetia illucens (L.)) (Diptera: Stratiomyidae) (BSF). WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 117:58-80. [PMID: 32805602 DOI: 10.1016/j.wasman.2020.07.050] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/15/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Population growth and unprecedented economic growth and urbanization, especially in low- and middle-income countries, coupled with extreme weather patterns, the high-environmental footprint of agricultural practices, and disposal-oriented waste management practices, require significant changes in the ways we produce food, feed and fuel, and manage enormous amounts of organic wastes. Farming insects such as the black soldier fly (BSF) (Hermetia illucens) on diverse organic wastes provides an opportunity for producing nutrient-rich animal feed, fuel, organic fertilizer, and biobased products with concurrent valorization of wastes. Inclusion of BSF larvae/pupae in the diets of poultry, fish, and swine has shown promise as a potential substitute of conventional feed ingredients such as soybean meal and fish meal. Moreover, the bioactive compounds such as antimicrobial peptides, medium chain fatty acids, and chitin and its derivatives present in BSF larvae/pupae, could also add values to the animal diets. However, to realize the full potential of BSF-based biorefining, more research and development efforts are necessary for scaling up the production and processing of BSF biomass using more mechanized and automated systems. More studies are also needed to ensure the safety of the BSF biomass grown on various organic wastes for animal feed (also food) and legalizing the feed application of BSF biomass to wider categories of animals. This critical review presents the current status of the BSF technology, identifies the research gaps, highlights the challenges towards industrial scale production, and provides future perspectives.
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Affiliation(s)
- K C Surendra
- Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA
| | - Jeffery K Tomberlin
- Department of Entomology, Texas A&M University, College Station, TX, 77843, USA
| | - Arnold van Huis
- Laboratory of Entomology, Wageningen University & Research, Wageningen, the Netherlands
| | - Jonathan A Cammack
- Department of Entomology, Texas A&M University, College Station, TX, 77843, USA
| | | | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA.
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Proc K, Bulak P, Wiącek D, Bieganowski A. Hermetia illucens exhibits bioaccumulative potential for 15 different elements - Implications for feed and food production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138125. [PMID: 32222512 DOI: 10.1016/j.scitotenv.2020.138125] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/13/2020] [Accepted: 03/20/2020] [Indexed: 06/10/2023]
Abstract
A new branch of the insect-based food and feed industry is intensively developing all over the world, the best proof of which is the recent change in legislation at the European level allowing the use of insect protein in the production of feed for aquaculture animals. Previous publications have proven that some heavy metals can be bioaccumulated in fly H. illucens (black soldier fly), even when the insect is raised on optimal feed with an acceptable heavy metal content. The purpose of this study was to determine the bioaccumulation potential of H. illucens in relation to micro- and macroelements, toxic elements and for the first time, selected non-essential elements from optimal feed. Our results showed that bioaccumulation of Ba, Bi, Cu, Fe, Hg, Mg, Mo, Se and Zn occurred in all stages of insect development and in puparia, while bioaccumulation of Al, As, Co, K, Pb and Si was not found. The highest bioaccumulation factors were obtained for Ca and Mn in puparia - 38 and 21 respectively. In addition, Ca, Cd, Ga, Mn, P and S were bioaccumulated only in some developmental stages of the insect. The results are discussed in the context of the safety of feed and food production from H. illucens.
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Affiliation(s)
- Kinga Proc
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
| | - Piotr Bulak
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
| | - Dariusz Wiącek
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
| | - Andrzej Bieganowski
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland.
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A Review on Insights for Green Production of Unconventional Protein and Energy Sources Derived from the Larval Biomass of Black Soldier Fly. Processes (Basel) 2020. [DOI: 10.3390/pr8050523] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The purpose of this review is to reveal the lipid and protein contents in black soldier fly larvae (BSFL) for the sustainable production of protein and energy sources. It has been observed from studies in the literature that the larval lipid and protein contents vary with the rearing conditions as well as the downstream processing employed. The homogenous, heterogenous and microbial-treated substrates via fermentation are used to rear BSFL and are compared in this review for the simultaneous production of larval protein and biodiesel. Moreover, the best moisture content and the aeration rate of larval feeding substrates are also reported in this review to enhance the growth of BSFL. As the downstream process after harvesting starts with larval inactivation, various related methods have also been reviewed in relation to its impact on the quality/quantity of larval protein and lipids. Subsequently, the other downstream processes, namely, extraction and transesterification to biodiesel, are finally epitomized from the literature to provide a comprehensive review for the production of unconventional protein and lipid sources from BSFL feedstock. Incontrovertibly, the review accentuates the great potential use of BSFL biomass as a green source of protein and lipids for energy production in the form of biodiesel. The traditional protein and energy sources, preponderantly fishmeal, are unsustainable naturally, pressingly calling for immediate substitutions to cater for the rising demands. Accordingly, this review stresses the benefits of using BSFL biomass in detailing its production from upstream all the way to downstream processes which are green and economical at the same time.
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Wu N, Wang X, Xu X, Cai R, Xie S. Effects of heavy metals on the bioaccumulation, excretion and gut microbiome of black soldier fly larvae (Hermetia illucens). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110323. [PMID: 32066008 DOI: 10.1016/j.ecoenv.2020.110323] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/25/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
The black soldier fly larvae (BSFL) have become a promising candidate for waste disposal and are an ideal feed source for animal nutrition. The uptake of heavy metals could influence the growth of BSFL, but the effects of heavy metal pressures on the gut microbiota of BSFL are largely uncharacterized. Here, we examine the influences of Cu and Cd on the growth and gut microbiota of BSFL as well as the distribution of accumulated heavy metals in the larvae and their feces. Exposure to Cu (from 100 to 800 mg/kg) and Cd (from 10 to 80 mg/kg) did not significantly inhibit the weight gain of BSFL. With elevated exposure doses, the contents of both Cu and Cd accumulated in the bodies and feces of BSFL were remarkably increased. In the BSFL feces, Cu mainly existed as residues, while Cd mainly existed as either water-soluble states (in the low-exposure groups) or residues (in the high-exposure groups). Cd was more readily enriched (47.1%-91.3%) than Cu (<30%) in vivo. More importantly, exposure to Cu and Cd remarkably altered the gut microbiota of BSFL, particularly in the phyla Proteobacteria, Firmicutes and Bacteroidetes. High exposure to the metals (i.e., Cu-800 and Cd-80 groups) substantially decreased the abundances of most of the dominant families, but significantly stimulated the enrichment of Brucellaceae, Enterobacteriaceae, Alcaligenaceae, Campylobacteraceae, and Enterococcaceae. Moreover, the bacterial diversity in the BSFL gut was significantly reduced following high exposure to the metals. These results may fill a gap in our knowledge of the effects of heavy metals on the intestinal microbiome of BSFL.
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Affiliation(s)
- Nan Wu
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300384, China
| | - Xiaobo Wang
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin, 300384, China
| | - Xiaoyan Xu
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin, 300384, China.
| | - Ruijie Cai
- College of Agronomy and Resource and Environment, Tianjin Agricultural University, Tianjin, 300384, China
| | - Shiyu Xie
- College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300384, China
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Wang H, Rehman KU, Feng W, Yang D, Rehman RU, Cai M, Zhang J, Yu Z, Zheng L. Physicochemical structure of chitin in the developing stages of black soldier fly. Int J Biol Macromol 2020; 149:901-907. [DOI: 10.1016/j.ijbiomac.2020.01.293] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023]
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Liu T, Awasthi MK, Awasthi SK, Duan Y, Zhang Z. Effects of black soldier fly larvae (Diptera: Stratiomyidae) on food waste and sewage sludge composting. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 256:109967. [PMID: 31989984 DOI: 10.1016/j.jenvman.2019.109967] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/05/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
With the rapid development of the economy and population, the improvement of life level, enormous organic wastes have been generated. Black soldier fly larvae (BSFL) treatment is an attractive management method as it provides a strategy for waste treatment while also generate biofertilizers. The aim of this study was to evaluate the BSFL processing residue quality through the physical and chemical parameters. The sewage sludge (T1) and food waste (T2) were employed with BSFL (7:1.2 ration on fresh weight basis) and without BSFL T3 and T4 was marked control and composted for 9 days. The results showed that the BSFL composting reduced the organic matter by 14.51-21.98% and the accumulation of volatile fatty acids by 10.12-28.50%. While BSFL composting greatly increased total kjeldahl nitrogen by 23.15% compared with T4, T1 remained essentially unchanged. The additive of BSFL was significantly increased the total phosphorous and potassium in T2, but T1 remained stable compared with control. These results showed that the BSFL could improve the quality of end product and promote the food waste degradation. The current study indicates that the BSFL management provides an environmentally relevant alternative with very convenience in food waste. Further research should focus on residue sanitation.
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Affiliation(s)
- Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China.
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China.
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From Waste to Sustainable Feed Material: The Effect of Hermetia Illucens Oil on the Growth Performance, Nutrient Digestibility, and Gastrointestinal Tract Morphometry of Broiler Chickens. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2019-0066] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Abstract
In the present study, the complete cycle of the preconsumer waste transition by black soldier fly larvae (BSFL) into sustainable raw material (dietary fat) for broiler chickens was examined. In two individual experiments, the effects of selected rearing medium made from various preconsumer wastes on the nutritive value and performance of BSFL were tested (1st trial). In the second experiment, partial (25, 50, or 75%) or total replacement of soybean oil fed to broiler chickens by BSFL fat obtained via supercritical CO2 extraction from larvae from the 1st experiment was conducted. In the performance trial on birds, nutrient digestibility, selected gastrointestinal tract (GIT) segments, internal organ traits, and welfare status were also measured. In the first trial, 1-day-old BSFL were allotted to 5 treatments (8 replicates each). The following substrates were tested, i.e., wheat bran, carrots, cabbage, potatoes, and a mixture of the previously mentioned organic food wastes (equal ratio of each). In the second experiment, a total of 960 day-old female Ross 308 chicks were randomly assigned to 5 dietary treatments (16 replicates and 12 birds per replicate). The following groups were applied: SO – 100% soybean oil, HI25 – a mixture containing 25% BSFL fat and 75% SO, HI50 – addition of BSFL and SO in a 50:50 ratio, HI75 – a mixture containing 75% BSFL fat and 25% SO, and HI100 – 100% BSFL fat. The results of the present study showed high variability in the chemical composition of insects among groups (410 vs. 550 g kg−1 CP; 60 vs. 170 g kg−1 EE), as well as a significant influence of rearing substrate composition on BSFL performance, i.e., the average mass of 100 randomly chosen larvae (P<0.001), waste reduction rate (P<0.001), and conversion rate (P=0.008). Moreover, the partial or total replacement of SO by BSFL fat did not affect (P>0.05) the growth performance, coefficients of apparent ileal digestibility of nutrients, selected organ weights and length, or the welfare status of the broilers. In conclusion, it is possible to obtain an environmentally friendly, sustainable energy source from BSFL biomass and implement it in broiler diets without a negative effect on the birds’ production.
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Liu T, Awasthi MK, Chen H, Duan Y, Awasthi SK, Zhang Z. Performance of black soldier fly larvae (Diptera: Stratiomyidae) for manure composting and production of cleaner compost. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 251:109593. [PMID: 31550602 DOI: 10.1016/j.jenvman.2019.109593] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 09/04/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
The increasing number of livestock farms has led to a great deal of manure generation, and its improper treatment results in threats to the environment. Black soldier fly larvae (BSFL) have the potential to effectively convert manure into high-quality fertilizer. The aims of this investigation were to observe the organic matter transformation of different livestock manures and volatile fatty acids (VFAs), and to evaluate the end product quality. Three types of manure [chicken (T1), pig (T2), and cow (T3)] were inoculated with BSFL (1.2:7 ratio on fresh weight basis), three types without BSFL were used as control (T4, T5, and T6), and both were composted for 9 days. The results showed that the BSFL composting reduced the organic matter by 20.31-22.18% and the accumulation of VFAs by 25.58-80.08% as compared to the control. BSFL composting greatly decreased the nitrogen, by 6.08-14.37%. The employment of BSFL significantly increased the total phosphorous (TP), total Kjeldahl nitrogen (TKN), and total nutrients by 42.30-64.16%, 45.41-88.17%, and 26.51-33.34%, respectively. This study showed that employing BSFL could improve the quality of the product and the maturity degree of the composting. Therefore, the BSFL could be added as a high-efficiency transformation agent for converting organic manure into stable compost, especially in developing countries, where adopting technical devices for composting is expensive and difficult to manipulate.
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Affiliation(s)
- Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
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