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Arast Y, Sabbaghi M, Kamranfar F, Heidari F, Fazli Nejad SM, Hosseinabadi T, Pourahmad J. Selective cytotoxicity of standardised n-hexane extract of black soldier flies' larvae on cancerous skin cells mitochondria isolated from rat model of melanoma. Cutan Ocul Toxicol 2024:1-8. [PMID: 39115252 DOI: 10.1080/15569527.2024.2389193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 06/30/2024] [Accepted: 08/01/2024] [Indexed: 08/15/2024]
Abstract
INTRODUCTION Melanoma is known as a highly lethal cancer. In melanoma cells, apoptosis signalling which relies heavily on the acute activity of mitochondria and reactive oxygen species (ROS) formation is suppressed. Our previous studies on natural compounds on melanoma suggested that mitochondria are a potential target for the melanoma treatment by selective cytotoxic effect of them. The black soldier fly is an important environmental protectant insect that based on recent studies induces apoptosis in liver and colorectal carcinoma cells through the activation of caspase 3, 8, and 9 and ultimately inhibits the growth of cancer cells. PURPOSE This study was designed to evaluate the selective apoptotic effect of the n-hexane BSFL extract (BSFLE) on skin mitochondria. MATERIALS AND METHODS The mitochondria isolated from melanoma cells were treated with various concentrations (1500, 3000, and 6000 µg/ml) of n-hexane BSFLE Then MTT viability assay, ROS determination, Mitochondrial Membrane Potential (MMP), mitochondrial swelling, cytochrome c release determination, and % apoptosis were performed. RESULTS MTT assay showed that different concentrations of n-hexane BSFLE significantly (P < 0.05) decreased the SDH activity in cancerous skin mitochondria with the IC50. The ROS production and mitochondrial swelling results also showed that all concentrations of BSFL extracts significantly increased. MMP decline and the release of cytochrome c in cancer groups mitochondria. BSFLE increased apoptosis on melanoma cells. DISCUSSION AND CONCLUSION It is suggested that n-hexane BSFLE compounds selectively induce a cascade of proapoptotic events that are probably defective in cancer cells. Most of these compounds target the mitochondrial transient pore caused by disruption of the mitochondrial respiratory chain. These events lead to disruption of the temporary permeability of mitochondria, swelling of mitochondria and finally the formation of apoptosome in the cytosol.
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Affiliation(s)
- Yalda Arast
- Research Center of Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran
| | - Mahya Sabbaghi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences Tehran, Tehran, Iran
| | - Farzane Kamranfar
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences Tehran, Tehran, Iran
| | - Fatemeh Heidari
- Department of Anatomical Sciences, School of Medicine, Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | | | - Tahereh Hosseinabadi
- Department of Pharmacognosy and Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences Tehran, Tehran, Iran
| | - Jalal Pourahmad
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences Tehran, Tehran, Iran
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Klüber P, Arous E, Jerschow J, Fraatz M, Bakonyi D, Rühl M, Zorn H. Fatty acids derived from oviposition systems guide female black soldier flies (Hermetia illucens) toward egg deposition sites. INSECT SCIENCE 2024; 31:1231-1248. [PMID: 37824440 DOI: 10.1111/1744-7917.13287] [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: 06/15/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 10/14/2023]
Abstract
The black soldier fly, Hermetia illucens, comes with big promises for industrial purposes since its larvae feed polyphagously on a broad spectrum of organic substrates. However, research focusing on adult flies is scarce, which is inconsistent with their reproductive relevance within the rearing cycle. In particular, directed oviposition is a challenge in artificial systems. Currently, decomposing organic matter is commonly used as oviposition substrate, which has extensive potential for improvement in view of the lack of standardization and the risk of microbial contamination. Here, we identified three fatty acids and one fatty acid methyl ester derived from the surface of old oviposition sites and targeted to elucidate their effect on preference behavior and oviposition site selection using Y-olfactometry and prepared oviposition sites, respectively. Exposure to tetradecanoic acid attracted gravid females and stimulated oviposition most strongly, while decanoic acid demonstrated a repulsive effect. Females kept in mixed-sex populations were attracted by tetradecanoic acid, resulting in a higher egg mass found in the compound box (3.0-11.4 fold), a ≥ 2.3 fold reduction of nonspecifically deposited eggs, and the highest total egg mass. Conversely, decanoic and dodecanoic acid caused females to lay a greater proportion of eggs nonspecifically outside both boxes. Our data suggest that fatty acids, especially tetradecanoic acid, are important cues for oviposition site selection in black soldier flies. In order to achieve a directed oviposition behavior, the role of further short- and long-chain fatty acids as attractants should be examined.
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Affiliation(s)
- Patrick Klüber
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Emna Arous
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Jeanny Jerschow
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Marco Fraatz
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Giessen, Germany
| | - Daniel Bakonyi
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
| | - Martin Rühl
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Giessen, Germany
| | - Holger Zorn
- Department Bioresources, Fraunhofer Institute for Molecular Biology and Applied Ecology, Giessen, Germany
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Giessen, Germany
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Lai‐Foenander AS, Kuppusamy G, Manogoran J, Xu T, Chen Y, Tang SY, Ser H, Yow Y, Goh KW, Ming LC, Chuah L, Yap W, Goh B. Black soldier fly ( Hermetia illucens L.): A potential small mighty giant in the field of cosmeceuticals. Health Sci Rep 2024; 7:e2120. [PMID: 38831777 PMCID: PMC11144625 DOI: 10.1002/hsr2.2120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 04/04/2024] [Accepted: 04/27/2024] [Indexed: 06/05/2024] Open
Abstract
Background and Aims Natural products are widely used in the pharmaceutical and cosmetics industries due to their high-value bioactive compounds, which make for "greener" and more environmentally friendly ingredients. These natural compounds are also considered a safer alternative to antibiotics, which may result in antibiotic resistance as well as unfavorable side effects. The development of cosmeceuticals, which combine the cosmetic and pharmaceutical fields to create skincare products with therapeutic value, has increased the demand for unique natural resources. The objective of this review is to discuss the biological properties of extracts derived from larvae of the black soldier fly (BSF; Hermetia illucens), the appropriate extraction methods, and the potential of this insect as a novel active ingredient in the formulation of new cosmeceutical products. This review also addresses the biological actions of compounds originating from the BSF, and the possible association between the diets of BSF larvae and their subsequent bioactive composition. Methods A literature search was conducted using PubMed and Google Scholar to identify and evaluate the various biological properties of the BSF. Results One such natural resource that may be useful in the cosmeceutical field is the BSF, a versatile insect with numerous potential applications due to its nutrient content and scavenging behavior. Previous research has also shown that the BSF has several biological properties, including antimicrobial, antioxidant, anti-inflammatory, and wound healing effects. Conclusion Given the range of biological activities and metabolites possessed by the BSF, this insect may have the cosmeceutical potential to treat a number of skin pathologies.
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Affiliation(s)
- Ashley Sean Lai‐Foenander
- Biofunctional Molecule Exploratory Research Group, School of PharmacyMonash University MalaysiaBandar SunwayMalaysia
| | - Giva Kuppusamy
- Laboratory of Molecular Biology, Department of Research and DevelopmentGK Aqua Sdn Bhd, Port DicksonNegeri SembilanMalaysia
| | - Janaranjani Manogoran
- Laboratory of Molecular Biology, Department of Research and DevelopmentGK Aqua Sdn Bhd, Port DicksonNegeri SembilanMalaysia
| | - Tengfei Xu
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
| | - Yong Chen
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
| | - Siah Ying Tang
- Chemical Engineering Discipline, School of EngineeringMonash University Malaysia, Bandar SunwaySelangor Darul EhsanMalaysia
| | - Hooi‐Leng Ser
- Department of Biological SciencesSchool of Medical and Life Sciences, Sunway UniversityBandar SunwayMalaysia
| | - Yoon‐Yen Yow
- Department of Biological SciencesSchool of Medical and Life Sciences, Sunway UniversityBandar SunwayMalaysia
| | - Khang Wen Goh
- Faculty of Data Science and Information TechnologyINTI International UniversityNilaiMalaysia
| | - Long Chiau Ming
- Department of Medical SciencesSchool of Medical and Life Sciences, Sunway UniversityBandar SunwayMalaysia
| | - Lay‐Hong Chuah
- Biofunctional Molecule Exploratory Research Group, School of PharmacyMonash University MalaysiaBandar SunwayMalaysia
| | - Wei‐Hsum Yap
- School of BiosciencesTaylor's University, Subang JayaSelangorMalaysia
- Centre for Drug Discovery and Molecular Pharmacology (CDDMP)Faculty of Health and Medical Sciences (FHMS), Taylor's University, Subang JayaSelangorMalaysia
| | - Bey‐Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of PharmacyMonash University MalaysiaBandar SunwayMalaysia
- College of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
- Sunway Biofunctional Molecules Discovery Centre (SBMDC)School of Medical and Life Sciences, Sunway UniversitySunwayMalaysia
- Faculty of Health, Australian Research Centre in Complementary and Integrative MedicineUniversity of Technology SydneyUltimoNSWAustralia
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Qiu Y, Wang P, Guo Y, Zhang L, Lu J, Ren L. Enhancing food waste reduction efficiency and high-value biomass production in Hermetia illucens rearing through bioaugmentation with gut bacterial agent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166488. [PMID: 37611705 DOI: 10.1016/j.scitotenv.2023.166488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/22/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
The black soldier fly (BSF) rearing technology has been a promising bioconversion method for food waste (FW) disposal. However, when used independently, it currently only achieves low efficiency and biomass transformation rates (BTR). This study screened and identified two strains of gut beneficial bacteria, Bacillus cereus and Bacterium YC-LK-LKJ45. The efficiency of a complex culture formulated by these strains was investigated, focusing on enhancing FW reduction and high-value biomass production during the rearing of BSF larvae. The coculture agent group (G1-10%, with two strains in 1:1 volume ratio at a 10 % dosage) exhibited higher larval yield (627.67 g·kg-1), BTR (47.90 %), FW reduction efficiency (80.67 %), and total protein and fat yield (261.99 g·kg-1and 46.24 g·kg-1) compared to the control and the monoculture agent group (which added a single gut beneficial bacteria agent, either Bacillus cereus or Bacterium YC-LK-LKJ45). The bacterial agent altered the richness and diversity of the gut microbial community of BSF, increasing the relative abundance of beneficial bacteria such as Bacillus, Oceano bacillus, and Akkermansia, while decreasing pathogenic bacteria, such as Acinetobacter and Escherichia-Shigella. Structural equation model quantification revealed that α-diversity (λ = 0.897, p < 0.001) and BTR (λ = 0.747, p < 0.001) are crucial drivers for enhancing high-value biomass during bioaugmentation rearing. This investigation provides a theoretical framework for the effective management of food waste using BSF, enhancing its decomposition and transformation into higher-value biomass.
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Affiliation(s)
- Yizhan Qiu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
| | - Pan Wang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Yuwen Guo
- AnronX Technology (Beijing) Joint Stock Co., Ltd., Beijing 100086, China
| | - Luxi Zhang
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China
| | - Jiaxin Lu
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Lianhai Ren
- School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing 100048, China.
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Rebora M, Salerno G, Piersanti S, Saitta V, Morelli Venturi D, Li C, Gorb S. The armoured cuticle of the black soldier fly Hermetia illucens. Sci Rep 2023; 13:22101. [PMID: 38092863 PMCID: PMC10719276 DOI: 10.1038/s41598-023-49549-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023] Open
Abstract
We characterise in detail the larval and pupal cuticle of the black soldier fly Hermetia illucens L. (Diptera: Stratiomyidae), a key insect species in circular economy. In particular, we focus on ultrastructure using scanning and transmission electron microscopy, material characterization and composition (elements and minerals) with confocal laser scanning microscope, energy dispersive X-ray microanalysis, powder X-ray diffraction and mechanical properties with nanoindentation measurements. Calcium carbonate crystallizes on the epicuticle as blocks of calcite in the pupal cuticle. Calcium carbonate granules are stored in two specialised Malpighian tubules. CaCO3 is already present in the cuticle of young larval instars, but it is mainly in the form of amorphous calcium carbonate while the amount of calcite increases during larval development. The presence of calcite leads to cuticle hardening. Larval and pupal cuticles contain large amounts of resilin which guarantee cuticle flexibility.
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Affiliation(s)
- Manuela Rebora
- Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Via Elce di Sotto 8, 06121, Perugia, Italy
| | - Gianandrea Salerno
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, University of Perugia, Borgo XX Giugno, 06121, Perugia, Italy.
| | - Silvana Piersanti
- Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Via Elce di Sotto 8, 06121, Perugia, Italy
| | - Valerio Saitta
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, University of Perugia, Borgo XX Giugno, 06121, Perugia, Italy
| | - Diletta Morelli Venturi
- Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Via Elce di Sotto 8, 06121, Perugia, Italy
| | - Chuchu Li
- Department of Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 9, 24098, Kiel, Germany
| | - Stanislav Gorb
- Department of Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Am Botanischen Garten 9, 24098, Kiel, Germany.
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Hurtado-Ribeira R, Villanueva-Bermejo D, García-Risco MR, Hernández MD, Sánchez-Muros MJ, Fornari T, Vázquez L, Martin D. Evaluation of the interrelated effects of slaughtering, drying, and defatting methods on the composition and properties of black soldier fly ( Hermetia illucens) larvae fat. Curr Res Food Sci 2023; 7:100633. [PMID: 38034945 PMCID: PMC10681923 DOI: 10.1016/j.crfs.2023.100633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/21/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
The interrelated effect of different slaughtering, drying and defatting methods of black soldier fly larvae (BSFL) on the lipid composition and properties of the fat was studied. Blanching and freezing were compared as slaughtering methods, oven or freeze-drying as drying methods, and mechanical pressing or supercritical fluid extraction (SFE) as defatting methods. The different modes of slaughtering, drying, and defatting, along with both binary and ternary interactions caused significant effects on processes yields, lipid composition, moisture content and thermal properties. Thus, considering the defatting degree and the yield in total valued products (defatted meal plus fat), the combination of blanching, freeze-drying plus mechanical pressing was the worst option (51.2% and 87.5%, respectively). In contrast, the other combinations demonstrated better and comparable efficiency, although SFE is preferable for defatting (83.2% and 96.9%, respectively). The content of major fatty acids (lauric, palmitic and myristic acids) was significantly affected by the BSFL treatments, although with unsignificant impact on the total saturated fatty acids content. To preserve the integrity of the fat, the combination of blanching and oven-drying was preferred, as non-thermal methods of slaughtering and drying caused intense lipolysis, releasing free fatty acids (FFA) in the range of 18.6-23.5%. To achieve the lowest moisture content in the fats (≤0.1%), oven-drying with mechanical pressing were desired, regardless of the slaughtering method; while values > 1% were reached for freezing, freeze-drying and SFE. Both differences in FFA and moisture contents caused different thermal behaviors in the samples. Specially, the melting temperature was lower for samples with higher FFA and moisture contents, with a notable difference when freezing, freeze-drying and SFE were combined (14.5 °C vs 30.6 °C, as the mean value for the rest of samples). The different modes of processing did not affect the minor lipid compounds. Therefore, the modes employed for slaughtering, drying, and defatting of BSFL determine, either individually or in combination, the process yields, composition, and properties of the fat.
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Affiliation(s)
- Raúl Hurtado-Ribeira
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - David Villanueva-Bermejo
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Mónica R. García-Risco
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - M. Dolores Hernández
- Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), Estación de Acuicultura Marina, Puerto de San Pedro Del Pinatar, 30740, Murcia, Spain
| | | | - Tiziana Fornari
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Diana Martin
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de La Alimentación (CIAL) (CSIC–UAM), 28049, Madrid, Spain
- Sección Departamental de Ciencias de La Alimentación. Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
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Phongpradist R, Semmarath W, Kiattisin K, Jiaranaikulwanitch J, Chaiyana W, Chaichit S, Phimolsiripol Y, Dejkriengkraikul P, Ampasavate C. The in vitro effects of black soldier fly larvae ( Hermitia illucens) oil as a high-functional active ingredient for inhibiting hyaluronidase, anti-oxidation benefits, whitening, and UVB protection. Front Pharmacol 2023; 14:1243961. [PMID: 37799972 PMCID: PMC10548269 DOI: 10.3389/fphar.2023.1243961] [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: 06/21/2023] [Accepted: 08/28/2023] [Indexed: 10/07/2023] Open
Abstract
Objective: Larvae of Hermitia illucens, or black soldier fly larvae (BSFL), have been recognized for their high lipid yield with a remarkable fatty acid profile. BSFL oil (SFO) offers the added value of a low environmental footprint and a sustainable product. In this study, the characteristics and cosmetic-related activities of SFO were investigated and compared with rice bran oil, olive oil and krill oil which are commonly used in cosmetics and supplements. Methods: The physicochemical characteristics were determined including acid value, saponification value, unsaponifiable matter and water content of SFO. The fatty acid composition was determined using GC-MS equipped with TR-FAME. The in vitro antioxidant properties were determined using DPPH, FRAP and lipid peroxidation inhibition assays. Antihyaluronidase (anti-HAase) activity was measured by detecting enzyme activity and molecular docking of candidate compounds toward the HAase enzyme. The safety assessment towards normal human cells was determined using the MTT assay and the UVB protection upon UVB-irradiated fibroblasts was determined using the DCF-DA assay. The whitening effect of SFO was determined using melanin content inhibition. Results: SFO contains more than 60% polyunsaturated fatty acids followed by saturated fatty acids (up to 37%). The most abundant component found in SFO was linoleic acid (C18:2 n-6 cis). Multiple anti-oxidant mechanisms of SFO were discovered. In addition, SFO and krill oil prevented hyaluronic acid (HA) degradation via strong HAase inhibition comparable with the positive control, oleanolic acid. The molecular docking confirmed the binding interactions and molecular recognition of major free fatty acids toward HAase. Furthermore, SFO exhibited no cytotoxicity on primary human skin fibroblasts, HaCaT keratinocytes and PBMCs (IC50 values > 200 μg/mL). SFO possessed significant in-situ anti-oxidant activity in UVB-irradiated fibroblasts and the melanin inhibition activity as effective as well-known anti-pigmenting compounds (kojic acid and arbutin, p < 0.05). Conclusion: This study provides scientific support for various aspects of SFO. SFO can be considered an alternative oil ingredient in cosmetic products with potential implications for anti-skin aging, whitening and UVB protection properties, making it a potential candidate oil in the cosmetic industry.
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Affiliation(s)
- Rungsinee Phongpradist
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Warathit Semmarath
- Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat, Thailand
- Centre for One Health, Walailak University, Nakhon Si Thammarat, Thailand
| | - Kanokwan Kiattisin
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | | | - Wantida Chaiyana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Siripat Chaichit
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Yuthana Phimolsiripol
- Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
| | - Pornngarm Dejkriengkraikul
- Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai, Thailand
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Chadarat Ampasavate
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai, Thailand
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Pascacio-Villafán C, Cohen AC. How Rearing Systems for Various Species of Flies Benefit Humanity. INSECTS 2023; 14:553. [PMID: 37367369 DOI: 10.3390/insects14060553] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023]
Abstract
Flies (Diptera) have played a prominent role in human history, and several fly species are reared at different scales and for different beneficial purposes worldwide. Here, we review the historical importance of fly rearing as a foundation for insect rearing science and technology and synthesize information on the uses and rearing diets of more than 50 fly species in the families Asilidae, Calliphoridae, Coelopidae, Drosophilidae, Ephydridae, Muscidae, Sarcophagidae, Stratiomyidae, Syrphidae, Tachinidae, Tephritidae, and Tipulidae. We report more than 10 uses and applications of reared flies to the well-being and progress of humanity. We focus on the fields of animal feed and human food products, pest control and pollination services, medical wound therapy treatments, criminal investigations, and on the development of several branches of biology using flies as model organisms. We highlight the relevance of laboratory-reared Drosophila melanogaster Meigen as a vehicle of great scientific discoveries that have shaped our understanding of many biological systems, including the genetic basis of heredity and of terrible diseases such as cancer. We point out key areas of fly-rearing research such as nutrition, physiology, anatomy/morphology, genetics, genetic pest management, cryopreservation, and ecology. We conclude that fly rearing is an activity with great benefits for human well-being and should be promoted for future advancement in diverse and innovative methods of improving existing and emerging problems to humanity.
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Affiliation(s)
- Carlos Pascacio-Villafán
- Red de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico BioMimic®, Instituto de Ecología A.C., Xalapa 91073, Veracruz, Mexico
| | - Allen Carson Cohen
- Insect Rearing Education and Research, Department of Entomology & Plant Pathology, NC State University, Raleigh, NC 27695, USA
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Siddiqui SA, Fernando I, Nisa' K, Shah MA, Rahayu T, Rasool A, Aidoo OF. Effects of undesired substances and their bioaccumulation on the black soldier fly larvae, Hermetia illucens (Diptera: Stratiomyidae)-a literature review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:823. [PMID: 37291225 DOI: 10.1007/s10661-023-11186-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/01/2023] [Indexed: 06/10/2023]
Abstract
Black soldier fly (BSF), Hermetia illucens (L.) (Diptera: Stratiomyidae), is predominantly reared on organic wastes and other unused complementary substrates. However, BSF may have a buildup of undesired substances in their body. The contamination of undesired substance, e.g., heavy metals, mycotoxins, and pesticides, in BSF mainly occurred during the feeding process in the larval stage. Yet, the pattern of accumulated contaminants in the bodies of BSF larvae (BSFL) is varied distinctively depending on the diets as well as the contaminant types and concentrations. Heavy metals, including cadmium, copper, arsenic, and lead, were reported to have accumulated in BSFL. In most cases, the cadmium, arsenic, and lead concentration in BSFL exceeded the recommended standard for heavy metals occurring in feed and food. Following the results concerning the accumulation of the undesired substance in BSFL's body, they did not affect the biological parameters of BSFL, unless the amounts of heavy metals in their diets are highly exceeding their thresholds. Meanwhile, a study on the fate of pesticides and mycotoxins in BSFL indicates that no bioaccumulation was detected for any of the target substances. In addition, dioxins, PCBs, PAHs, and pharmaceuticals did not accumulate in BSFL in the few existing studies. However, future studies are needed to assess the long-term effects of the aforementioned undesired substances on the demographic traits of BSF and to develop appropriate waste management technology. Since the end products of BSFL that are contaminated pose a threat to both human and animal health, their nutrition and production process must be well managed to create end products with a low contamination level to achieve a closed food cycle of BSF as animal feed.
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Affiliation(s)
- Shahida Anusha Siddiqui
- Technical University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315, Straubing, Germany.
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing Str. 7, 49610, D-Quakenbrück, Germany.
| | - Ito Fernando
- Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya, Jl. Veteran, Malang, East Java, 65145, Indonesia
| | - Khoirun Nisa'
- Department of Environmental Engineering, Sepuluh Nopember Institute of Technology, Sukolilo, Surabaya, East Java, 60111, Indonesia
| | - Mohd Asif Shah
- Woxsen University, Kamkole, Sadasivpet, Hyderabad, Telangana, 502345, India
- Division of Research and Development, Lovely Professional University, Phagwara, Punjab, India
| | - Teguh Rahayu
- CV HermetiaTech, Voza Premium Office 20th Floor, Jl. HR. Muhammad No. 31A, Putat Gede, Surabaya, 60189, Jawa Timur, Indonesia
| | - Adil Rasool
- Department of Management, Bakhtar University, Kabul, Afghanistan.
| | - Owusu Fordjour Aidoo
- Department of Biological Sciences, School of Natural and Environmental Sciences, University of Environment and Sustainable Development, PMB, 00233, Somanya, Ghana
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10
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Chaiyana W, Jiamphun S, Bezuidenhout S, Yeerong K, Krueathanasing N, Thammasorn P, Jittasai P, Tanakitvanicharoen S, Tima S, Anuchapreeda S. Enhanced Cosmeceutical Potentials of the Oil from Gryllus bimaculatus de Geer by Nanoemulsions. Int J Nanomedicine 2023; 18:2955-2972. [PMID: 37293575 PMCID: PMC10246574 DOI: 10.2147/ijn.s406864] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023] Open
Abstract
Purpose This study aimed to extract the oil from Gryllus bimaculatus de Geer, evaluate its potential for cosmeceutical applications, and develop nanoemulsions to promote the cosmeceutical capabilities of the oil. Methods G. bimaculatus oil was produced by the cold pressing method. Its fatty acid compositions were assessed by fatty acid methyl ester/gas chromatographic-mass spectrometry. The antioxidant activities of the oil were investigated in terms of radical scavengers, reducing power, and lipid peroxidation inhibition. The whitening effects were investigated through anti-tyrosinase activities, whilst the anti-aging effects were investigated through inhibition against collagenase, elastase, and hyaluronidase. The irritant effects were investigated by the hen's egg chorio-allantoic membrane test and the cytotoxicity assay in immortalized human epidermal keratinocytes and human foreskin fibroblast cells. The nanoemulsions were developed, characterized, and evaluated for their stability and cosmeceutical properties. Results G. bimaculatus oil, rich in linoleic acid (31.08 ± 0.00%), oleic acid (30.44 ± 0.01%), palmitic acid (24.80 ± 0.01%), and stearic acid (7.61 ± 0.00%), demonstrated promising cosmeceutical properties in terms of antioxidant, anti-tyrosinase, and anti-skin ageing activities. Besides, the oil was safe since it induced no irritation or cytotoxicity. G. bimaculatus oil was successfully developed into nanoemulsions, and F1, composed of 1% w/w G. bimaculatus oil, 1.12% w/w polysorbate 80, 0.88% w/w sorbitan oleate, and 97% w/w DI water, had the smallest internal droplet size (53.8 ± 0.6 nm), the narrowest polydispersity index (0.129 ± 0.010), and a pronounced zeta potential (-28.23 ± 2.32 mV). All cosmeceutical activities of the oil were significantly enhanced after incorporation in the nanoemulsions (p < 0.001), particularly the whitening effects. Conclusion G. bimaculatus oil nanoemulsion was an attractive cosmeceutical formulation with potent whitening effects, along with antioxidant and anti-aging properties. Therefore, nanoemulsion technology was found to be an effective strategy for improving the cosmeceutical properties of G. bimaculatus oil.
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Affiliation(s)
- Wantida Chaiyana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Innovation Center for Holistic Health, Nutraceuticals and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Sudarat Jiamphun
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Suchanan Bezuidenhout
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Kankanit Yeerong
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Nutnicha Krueathanasing
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Pattiya Thammasorn
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Pipat Jittasai
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | | | - Singkome Tima
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Songyot Anuchapreeda
- Research Center of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
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11
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Sun Q, Zhang X, Ouyang Y, Yu P, Man Y, Guo S, Liu S, Chen Y, Wang Y, Tan X. Appressoria Formation in Phytopathogenic Fungi Suppressed by Antimicrobial Peptides and Hybrid Peptides from Black Soldier Flies. Genes (Basel) 2023; 14:genes14051096. [PMID: 37239456 DOI: 10.3390/genes14051096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/27/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Antimicrobial peptides (AMPs) from black solider flies (Hermetia illucens, BSF) exhibiting broad-spectrum antimicrobial activity are the most promising green substitutes for preventing the infection of phytopathogenic fungi; therefore, AMPs have been a focal topic of research. Recently, many studies have focused on the antibacterial activities of BSF AMPs against animal pathogens; however, currently, their antifungal activities against phytopathogenic fungi remain unclear. In this study, 7 AMPs selected from 34 predicted AMPs based on BSF metagenomics were artificially synthesized. When conidia from the hemibiotrophic phytopathogenic fungi Magnaporthe oryzae and Colletotrichum acutatum were treated with the selected AMPs, three selected AMPs-CAD1, CAD5, and CAD7-showed high appressorium formation inhibited by lengthened germ tubes. Additionally, the MIC50 concentrations of the inhibited appressorium formations were 40 μM, 43 μM, and 43 μM for M. oryzae, while 51 μM, 49 μM, and 44 μM were observed for C. acutatum, respectively. A tandem hybrid AMP named CAD-Con comprising CAD1, CAD5, and CAD7 significantly enhanced antifungal activities, and the MIC50 concentrations against M. oryzae and C. acutatum were 15 μM and 22 μM, respectively. In comparison with the wild type, they were both significantly reduced in terms of virulence when infection assays were performed using the treated conidia of M. oryzae or C. acutatum by CAD1, CAD5, CAD7, or CAD-Con. Meanwhile, their expression levels of CAD1, CAD5, and CAD7 could also be activated and significantly increased after the BSF larvae were treated with the conidia of M. oryzae or C. acutatum, respectively. To our knowledge, the antifungal activities of BSF AMPs against plant pathogenic fungi, which help us to seek potential AMPs with antifungal activities, provide proof of the effectiveness of green control strategies for crop production.
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Affiliation(s)
- Qianlong Sun
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xin Zhang
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Ying Ouyang
- College of Plant Science, Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China
| | - Pingzhong Yu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Yilong Man
- Agricultural Biotechnology Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Sheng Guo
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Sizhen Liu
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Yue Chen
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
| | - Yunsheng Wang
- College of Plant Protection, Hunan Agricultural University, Changsha 410128, China
| | - Xinqiu Tan
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Longping Branch, College of Biology, Hunan University, Changsha 410125, China
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12
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Sogari G, Amato M, Palmieri R, Hadj Saadoun J, Formici G, Verneau F, Mancini S. The future is crawling: Evaluating the potential of insects for food and feed security. Curr Res Food Sci 2023; 6:100504. [PMID: 37377490 PMCID: PMC10290996 DOI: 10.1016/j.crfs.2023.100504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 06/29/2023] Open
Abstract
Current estimations showed that the number of people affected by hunger doubled in the last two years, reaching 9.8% of the global population. According to FAO, in order to satisfy the demand for food in the next few years, it will be necessary to double food production. Moreover, the call for a change in dietary patterns has been raised, showing how the food sector is responsible of 1/3 of climate change where meat-based diets or overconsumption of meat play an important role in the negative environmental impact. Consequently, there is a growing concern in how to achieve the goal of increasing food productions without exploiting environmental resources and to explore the production and use of alternative resources, such as insects. Insects are gaining interests both as food and feed not only to reduce the environmental costs in feed production for common livestock, but also to reduce farmers' dependence on traditional protein sources. In this work we aimed to provide an overview of the state-of-the-art upon insect studies, highlighting the most important results obtained from both an industrial and market perspective. The legislative framework concerning edible insects as food and feed is also analyzed, with the final purpose to highlight recent reforms, relevant case-law as well as unsolved regulatory challenges. From a normative perspective, regulatory efforts are still required to fully take advantage of the potentialities of insects-industry. From a consumer point of view, consumers' willingness to pay a premium is going to be a key issue for economic sustainability of the insect farming chain. To meet the food and feed security challenges, insects will have to be considered all-around, including applications in the food, feed, and other sectors. We believe that this review is an important contribution to the field of food science and will be of interest to researchers, food industry professionals, and policymakers in order to prioritize research questions and help communicate scientific knowledge to a broader audience.
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Affiliation(s)
- Giovanni Sogari
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 49/a, 43124, Parma, Italy
| | - Mario Amato
- Department of Political Science, University of Naples Federico II, Via Rodinò 22/A, 80138, Naples, Italy
| | - Rossella Palmieri
- Department of Political Science, University of Naples Federico II, Via Rodinò 22/A, 80138, Naples, Italy
| | - Jasmine Hadj Saadoun
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 49/a, 43124, Parma, Italy
| | - Giulia Formici
- Department of Italian and Supranational Public Law, University of Milan, Via Festa del Perdono 7, 20122, Milan, Italy
| | - Fabio Verneau
- Department of Political Science, University of Naples Federico II, Via Rodinò 22/A, 80138, Naples, Italy
| | - Simone Mancini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124, Pisa, Italy
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13
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Cytoprotective and Antioxidant Effects of Hydrolysates from Black Soldier Fly ( Hermetia illucens). Antioxidants (Basel) 2023; 12:antiox12020519. [PMID: 36830077 PMCID: PMC9952651 DOI: 10.3390/antiox12020519] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The black soldier fly (BSF), Hermetia illucens, has been recognized as one of the most promising insect species for its ability to valorize organic waste while producing a valuable larval biomass with a great potential as a sustainable source of nutrients, including proteins and bioactive molecules. In the present study, BSF larvae were used to produce and characterize the protein hydrolysates (BPHs) that were then evaluated for their potential biological activity in vitro. The BPHs obtained from the BSF larvae proteins by enzymatic digestion were characterized by Nuclear Magnetic Resonance (NMR) and polyacrylamide gel electrophoresis and assessed for their antioxidant activity (BPHs in the range of 0.1 to 1.5 mg/mL) in L-929 cells. Our findings show that BPHs can exert a dose-dependent cytoprotective role against H2O2-iduced oxidative stress in cells. This antioxidant activity relies on the reduction of ROS levels in challenged cells as measured by flow cytometry and fluorescence microscopy, together with the induction and nuclear translocation of Nrf2, as evaluated by qPCR and indirect immunofluorescence analysis, respectively. Overall, our findings on the remarkable biological activity of the BPHs obtained in a large-scale process strongly suggest the application of BPHs as ingredients promoting animal health in feed formulations.
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14
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Kaczor M, Bulak P, Proc-Pietrycha K, Kirichenko-Babko M, Bieganowski A. The Variety of Applications of Hermetia illucens in Industrial and Agricultural Areas-Review. BIOLOGY 2022; 12:25. [PMID: 36671718 PMCID: PMC9855018 DOI: 10.3390/biology12010025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/25/2022]
Abstract
Hermetia illucens (Diptera: Stratiomyidae, Linnaeus, 1978), commonly known as the black soldier fly (BSF), is a saprophytic insect, which in recent years has attracted significant attention from both the scientific community and industry. The unrestrained appetite of the larvae, the ability to forage on various organic waste, and the rapid growth and low environmental impact of its breeding has made it one of the insect species bred on an industrial scale, in the hope of producing fodder or other ingredients for various animals. The variety of research related to this insect has shown that feed production is not the only benefit of its use. H. illucens has many features and properties that could be of interest from the point of view of many other industries. Biomass utilization, chitin and chitosan source, biogas, and biodiesel production, entomoremediation, the antimicrobial properties of its peptides, and the fertilizer potential of its wastes, are just some of its potential uses. This review brings together the work of four years of study into H. illucens. It summarizes the current state of knowledge and introduces the characteristics of this insect that may be helpful in managing its breeding, as well as its use in agro-industrial fields. Knowledge gaps and under-studied areas were also highlighted, which could help identify future research directions.
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Affiliation(s)
- Monika Kaczor
- 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
| | - Kinga Proc-Pietrycha
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland
| | - Marina Kirichenko-Babko
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland
- Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, B. Khmelnitsky 15, 01030 Kyiv, Ukraine
| | - Andrzej Bieganowski
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland
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15
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Mohamed H, Marusich E, Afanasev Y, Leonov S. Bacterial Outer Membrane Permeability Increase Underlies the Bactericidal Effect of Fatty Acids From Hermetia illucens (Black Soldier Fly) Larvae Fat Against Hypermucoviscous Isolates of Klebsiella pneumoniae. Front Microbiol 2022; 13:844811. [PMID: 35602017 PMCID: PMC9121012 DOI: 10.3389/fmicb.2022.844811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/08/2022] [Indexed: 11/25/2022] Open
Abstract
Behind expensive treatments, Klebsiella pneumoniae infections account for extended hospitalization’s high mortality rates. This study aimed to evaluate the activity and mechanism of the antimicrobial action of a fatty acid-containing extract (AWME3) isolated from Hermetia illucens (HI) larvae fat against K. pneumoniae subsp. pneumoniae standard NDM-1 carbapenemase-producing ATCC BAA-2473 strain, along with a wild-type hypermucoviscous clinical isolate, strain K. pneumoniae subsp. pneumoniae KPi1627, and an environmental isolate, strain K. pneumoniae subsp. pneumoniae KPM9. We classified these strains as extensive multidrug-resistant (XDR) or multiple antibiotic-resistant (MDR) demonstrated by a susceptibility assay against 14 antibiotics belonging to ten classes of antibiotics. Antibacterial properties of fatty acids extracted from the HI larvae fat were evaluated using disk diffusion method, microdilution, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), half of the inhibitory concentration (MIC50), and bactericidal assays. In addition, the cytotoxocity of AWME3 was tested on human HEK293 cells, and AWME3 lipid profile was determined by gas chromatography-mass spectrometry (GC-MS) analysis. For the first time, we demonstrated that the inhibition zone diameter (IZD) of fatty acid-containing extract (AWME3) of the HI larvae fat tested at 20 mg/ml was 16.52 ± 0.74 and 14.23 ± 0.35 mm against colistin-resistant KPi1627 and KPM9, respectively. It was 19.72 ± 0.51 mm against the colistin-susceptible K. pneumoniae ATCC BAA-2473 strain. The MIC and MBC were 250 μg/ml for all the tested bacteria strains, indicating the bactericidal effect of AWME3. The MIC50 values were 155.6 ± 0.009 and 160.1 ± 0.008 μg/ml against the KPi1627 and KPM9 isolates, respectively, and 149.5 ± 0.013 μg/ml against the ATCC BAA-2473 strain in the micro-dilution assay. For the first time, we demonstrated that AWME3 dose-dependently increased bacterial cell membrane permeability as determined by the relative electric conductivity (REC) of the K. pneumoniae ATCC BAA-2473 suspension, and that none of the strains did not build up resistance to extended AWME3 treatment using the antibiotic resistance assay. Cytotoxicity assay showed that AWME3 is safe for human HEK293 cells at IC50 266.1 μg/ml, while bactericidal for all the strains of bacteria at the same concentration. Free fatty acids (FFAs) and their derivatives were the significant substances among 33 compounds identified by the GC-MS analysis of AWME3. Cis-oleic and palmitoleic acids represent the most abundant unsaturated FAs (UFAs), while palmitic, lauric, stearic, and myristic acids were the most abundant saturated FAs (SFAs) of the AWME3 content. Bactericidal resistant-free AWM3 mechanism of action provides a rationale interpretations and the utility of HI larvae fat to develop natural biocidal resistance-free formulations that might be promising therapeutic against Gram-negative MDR bacteria causing nosocomial infections.
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Affiliation(s)
- Heakal Mohamed
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Elena Marusich
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- *Correspondence: Elena Marusich,
| | - Yuriy Afanasev
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Sergey Leonov
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Moscow, Russia
- Sergey Leonov,
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16
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Almeida C, Murta D, Nunes R, Baby AR, Fernandes Â, Barros L, Rijo P, Rosado C. Characterization of lipid extracts from the Hermetia illucens larvae and their bioactivities for potential use as pharmaceutical and cosmetic ingredients. Heliyon 2022; 8:e09455. [PMID: 35637671 PMCID: PMC9142853 DOI: 10.1016/j.heliyon.2022.e09455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/06/2022] [Accepted: 05/12/2022] [Indexed: 11/18/2022] Open
Abstract
There is an increasingly growing demand for the use of natural and sustainable bioactives in the field of the pharmaceutical and cosmetic industries. The biomass from black soldier fly larvae (Hermetia illucens) can be viewed as an innovative source of compounds with high aggregate value and marketing potential due to the sustainable organic matter bioconversion process used as substrate for its development. This insect can be a source of lipid compounds with high added value, mainly due to its high content in fatty acids (FA) with potential applicability in the pharmaceutical and cosmetic industry. In this context, in this work different extraction methods were tested (decoction, microwaves, maceration and ultrasound), using water, acetone, n-hexane as extraction solvents, to evaluate yields of the BSF larvae lipid extracts, as well as their lipid profile, and a preliminary safety screening was conducted. Results show that despite using different extraction techniques and solvents, similar FA composition profiles were obtained. The lauric acid content (C12: 0) is elevated in all the extracts in relation to the other FA, ranging 37%-62%. The contents in palmitic (C16: 0) and oleic (C18: 1n-9) acids, were also high in all applied extraction methods. The omega-6 FA (ω-6 PUFAs), mainly linoleic acid (C18: 2n6c), were also identified in the lipid fraction of BSF larvae biomass, with a content variation between 4.5% and 17.7%, while the omega-3 group, namely α-Linolenic acid (C18: 3n3), presented values between 0.66% and 1.95%. None of the extracts presented toxicity in preliminary tests with the Artemia salina model. Through this study, it was possible to confirm that BSF larvae oil can be obtained by sustainable methods, containing a broad mixture of FA and being highly rich in lauric acid, with a promising skin care applicability.
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Affiliation(s)
- Cíntia Almeida
- Universidade Lusófona (CBIOS – Research Center for Biosciences & Health Technologies), Lisboa, Portugal
- Department of Biomedical Sciences, University of Alcalá, Ctra, Madrid-Barcelona, Km 33.600, Alcalá de Henares, 28871, Madrid, Spain
| | - Daniel Murta
- Ingredient Odyssey SA – EntoGreen, Rua Cidade de Santarém 140, 2005-079 Santarém, Portugal
- CiiEM – Centro de Investigação Interdisciplinar Egas Moniz, Campus Universitário, 2829-511 Caparica, Portugal
- Myrtus Unipessoal Lda, Monte Claro, Nisa, Portugal
| | - Rui Nunes
- Ingredient Odyssey SA – EntoGreen, Rua Cidade de Santarém 140, 2005-079 Santarém, Portugal
| | - André Rolim Baby
- Faculty of Pharmaceutical Sciences, Universidade de São Paulo, São Paulo, Brazil
| | - Ângela Fernandes
- Centro de Investigação da Montanha (CIMO), Intituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Lillian Barros
- Centro de Investigação da Montanha (CIMO), Intituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Patricia Rijo
- Universidade Lusófona (CBIOS – Research Center for Biosciences & Health Technologies), Lisboa, Portugal
| | - Catarina Rosado
- Universidade Lusófona (CBIOS – Research Center for Biosciences & Health Technologies), Lisboa, Portugal
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17
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Singh A, Marathe D, Raghunathan K, Kumari K. Effect of Different Organic Substrates on Selected Life History Traits and Nutritional Composition of Black Soldier fly (Hermetia illucens). ENVIRONMENTAL ENTOMOLOGY 2022; 51:182-189. [PMID: 34864905 DOI: 10.1093/ee/nvab135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Black soldier fly (Hermetia illucens L. [Diptera: Stratiomyidae]) has gained huge popularity in different industrial and commercial sectors because of its excellent potential to treat organic waste and high biomass production. As the industrial application of BSF is expanding at accelerated rates, there is a need to optimize its mass scale production where the organic substrates play a very crucial role in optimal growth and development. The present study deals with the investigation of different life history attributes of BSF such as larval and adult weights, survival, pupation rate, and the development time as the function of different organic substrates [fruits and vegetable mix (T1); wheat bran, soy, and corn meal mix (T2); and the dairy manure (T3)]. The larval, pupal, and adult weights differed across all three treatments (P < 0.05). There was no significant difference in the survival rate of larvae among T1 and T2 however, T3 differed significantly from T1 and T2. Likewise, the pupation rate and the development time differed significantly between the three treatments. Results indicated that the BSF development was least in dairy manure treatment and therefore, higher percent mortality and higher development time were observed. However, to deal with the problems of waste management and treatment, BSF larvae can be successfully employed for the treatment of any type of waste since it showed significant treatment efficiencies.
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Affiliation(s)
- Anshika Singh
- CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440 020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India
| | - Deepak Marathe
- CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440 020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India
| | - Karthik Raghunathan
- CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440 020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India
| | - Kanchan Kumari
- CSIR-National Environmental Engineering Research Institute, Kolkata Zonal Centre, Kolkata 700 107, India
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Franco A, Salvia R, Scieuzo C, Schmitt E, Russo A, Falabella P. Lipids from Insects in Cosmetics and for Personal Care Products. INSECTS 2021; 13:insects13010041. [PMID: 35055884 PMCID: PMC8779901 DOI: 10.3390/insects13010041] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/17/2021] [Accepted: 12/27/2021] [Indexed: 12/16/2022]
Abstract
Simple Summary The use of insects as a new source of lipids is a topic of great interest from both environmental and economic points of view. In addition to use in feed and energy applications, lipids could be used for the formulation of personal care products. The cosmetics industry is always in search of new ingredients to use in novel product formulations. The processes mediated by bioconverter insects, such as Hermetia illucens, are really advantageous because starting from substrates of low economic and biological value (agri-food by-products, zootechnical, catering, and other waste), it is possible to obtain products of high commercial value. The composition of insect lipids depends on the feeding substrate, as well as the insect species, therefore for each personal care application, it is possible to find the most suitable starting conditions. In this review, we display a general outlook on insect lipids, the extraction processes, and their use in cosmetics and personal care fields. Abstract Insects, the most varied group of known organisms on Earth, are arousing great interest also for the possibility to use them as a feed and food source. The mass rearing of some species, defined as “bioconverters”, is spreading worldwide, thanks to their sustainability. At the end of the bioconversion process, breeders obtain eco-friendly biomolecules of high biological and economic value, including proteins and lipids, from larvae of bioconverter insects, in particular Hermetia illucens. Besides the most classical use of insect lipids as food additives, they are also used in the formulation of several products for personal care. The composition of insect lipids depends on the substrate on which the insects are reared but also on the insect species, so the cosmetic producers should consider these features to choose their insect starting point. The most abundant fatty acids detected in H. illucens are lauric, myristic, palmitic, and oleic acids, regardless of feed substrate; its fatty acids composition is favorable for soap composition, while their derivatives are used for detergent and shampoo. Here, we offer an overview of insect lipids, their extraction methods, and their application in cosmetics and personal care products.
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Affiliation(s)
- Antonio Franco
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (A.F.); (C.S.)
- Spinoff XFlies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Rosanna Salvia
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (A.F.); (C.S.)
- Spinoff XFlies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
- Correspondence: (R.S.); (P.F.)
| | - Carmen Scieuzo
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (A.F.); (C.S.)
- Spinoff XFlies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Eric Schmitt
- Protix B.V., Industriestaat 3, 5107 NC Dongen, The Netherlands;
| | - Antonella Russo
- Greenswitch s.r.l., Strada Provinciale Ferrandina—Macchia, 75013 Ferrandina, Italy;
| | - Patrizia Falabella
- Department of Sciences, University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy; (A.F.); (C.S.)
- Spinoff XFlies s.r.l., University of Basilicata, Via dell’Ateneo Lucano 10, 85100 Potenza, Italy
- Correspondence: (R.S.); (P.F.)
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Abstract
The exponential increase of global demand for proteins and lipids can no longer be satisfied by classical sources. High amounts of CO2 produced by intensive livestock breeding and its effects on the environment are the main factors that prevent the use of animals as primary sources for proteins and lipids, calling for the use of new sustainable sources, such as insects. The massive breeding of bioconverter insects as a feed source has been a major topic in recent years, with both economic and scientific aspects related to rearing and subsequent processing optimization. The larvae of Hermetia illucens (Diptera: Stratiomyidae) (also known as Black Soldier Fly) can be used for the eco-sustainable production of proteins and lipids with high biological and economic value. Lipids can be obtained from BSF bioconversion processes and are present in high quantities in the last instar larvae and prepupae. Fats obtained from BSF are used as animal feed ingredients, in the formulation of several products for personal care, and in biodiesel production. To enable the use of insect-derived lipids, it is important to understand how to optimize their extraction. Here, we summarize the published information on the composition, the extraction methods, and the possible applications of the BSF lipid component.
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Kim JH, Gao D, Jeong WS, Kim CT, Cho CW, Kim HM, Kang JS. Anti-Wrinkle Effect of Isatis indigotica Leaf Extract: Evaluation of Antioxidant, Anti-Inflammation, and Clinical Activity. Antioxidants (Basel) 2021; 10:antiox10091339. [PMID: 34572971 PMCID: PMC8469237 DOI: 10.3390/antiox10091339] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 11/16/2022] Open
Abstract
Isatis indigotica leaf is an oriental herbal medicine that has been known for various pharmacological effects. However, its anti-wrinkle activity has not been fully evaluated. Therefore, we evaluated the anti-wrinkle effect of I. indigotica leaf extract on human skin. The purified extract inhibited 85.4% of 2,2-diphenyl-1-1picrylhydrazyl and 72.2% of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt radicals at a concentration of 1 mg/mL. Nitrite production was reduced by 30% after treatment with 50 μg/mL of extract. Three fractions from the extract downregulated the mRNA expression of matrix metalloproteinase-1 and -3 and upregulated the expression of interleukin 4. Among the three fractions, fraction 2 exhibited the highest activity. The major component of the extract was identified as 3,4,5-trimethoxycinnamic acid by liquid chromatography coupled with mass spectrometry. Molecular docking was conducted to predict the binding mechanism of 3,4,5-trimethoxycinnamic with matrix metalloproteinase-1 and -3, and their binding energies were -5.20 and -4.89 kcal/mol, respectively. In a clinical trial, five roughness values of visiometer and visual score were significantly reduced in treated groups compared with the placebo group after 8 weeks. I. indigotica leaf extract inhibits wrinkle formation, and could be a potential anti-wrinkle agent. This is the first clinical trial demonstrating its anti-wrinkle activity.
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Affiliation(s)
- Jin Hyeok Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (J.H.K.); (D.G.)
| | - Dan Gao
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (J.H.K.); (D.G.)
| | | | | | - Chong Woon Cho
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (J.H.K.); (D.G.)
- Correspondence: (C.W.C.); (H.M.K.); (J.S.K.)
| | - Hyung Min Kim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (J.H.K.); (D.G.)
- Correspondence: (C.W.C.); (H.M.K.); (J.S.K.)
| | - Jong Seong Kang
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea; (J.H.K.); (D.G.)
- Correspondence: (C.W.C.); (H.M.K.); (J.S.K.)
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21
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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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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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