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Ma C, Huang Z, Feng X, Memon FU, Cui Y, Duan X, Zhu J, Tettamanti G, Hu W, Tian L. Selective breeding of cold-tolerant black soldier fly (Hermetia illucens) larvae: Gut microbial shifts and transcriptional patterns. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 177:252-265. [PMID: 38354633 DOI: 10.1016/j.wasman.2024.02.007] [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: 08/07/2023] [Revised: 12/29/2023] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
The larvae of black soldier fly (BSFL) convert organic waste into insect proteins used as feedstuff for livestock and aquaculture. BSFL production performance is considerably reduced during winter season. Herein, the intraspecific diversity of ten commercial BSF colonies collected in China was evaluated. The Bioforte colony was subjected to selective breeding at 12 °C and 16 °C to develop cold-tolerant BSF with improved production performance. After breeding for nine generations, the weight of larvae, survival rate, and the dry matter conversion rate significantly increased. Subsequently, intestinal microbiota in the cold-tolerant strain showed that bacteria belonging to Morganella, Dysgonomonas, Salmonella, Pseudochrobactrum, and Klebsiella genera were highly represented in the 12 °C bred, while those of Acinetobacter, Pseudochrobactrum, Enterococcus, Comamonas, and Leucobacter genera were significantly represented in the 16 °C bred group. Metagenomic revealed that several animal probiotics of the Enterococcus and Vagococcus genera were greatly enriched in the gut of larvae bred at 16 °C. Moreover, bacterial metabolic pathways including carbohydrate, lipid, amino acids, and cofactors and vitamins, were significantly increased, while organismal systems and human diseases was decreased in the 16 °C bred group. Transcriptomic analysis revealed that the upregulated differentially expressed genes in the 16 °C bred groups mainly participated in Autophagy-animal, AMPK signaling pathway, mTOR signaling pathway, Wnt signaling pathway, FoxO signaling pathway, Hippo signaling pathway at day 34 under 16 °C conditions, suggesting their significant role in the survival of BSFL. Taken together, these results shed lights on the role of intestinal microflora and gene pathways in the adaptation of BSF larvae to cold stress.
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Affiliation(s)
- Chong Ma
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Zhijun Huang
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Xingbao Feng
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Fareed Uddin Memon
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Ying Cui
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Xinyu Duan
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Jianfeng Zhu
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China
| | - Gianluca Tettamanti
- Department of Biotechnology and Life Sciences, University of Insubria, Varese 21100, Italy; Interuniversity Center for Studies on Bioinspired Agro-environmental Technology (BAT Center), University of Napoli Federico II, 80055 Portici, Italy
| | - Wenfeng Hu
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China; Laboratory of Applied Microbiology, College of Food Science, South China Agricultural University, Guangdong 510642, China
| | - Ling Tian
- Guangdong Provincial Key Lab of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; Bioforte Biotechnology (Shenzhen) Co., Ltd., Shenzhen 518118, China.
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Popović N, Stevanović D, Radojević D, Veljović K, Đokić J, Golić N, Terzić-Vidojević A. Insight into the Postbiotic Potential of the Autochthonous Bacteriocin-Producing Enterococcus faecium BGZLM1-5 in the Reduction in the Abundance of Listeria monocytogenes ATCC19111 in a Milk Model. Microorganisms 2023; 11:2844. [PMID: 38137988 PMCID: PMC10745621 DOI: 10.3390/microorganisms11122844] [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: 09/30/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
This study aimed to explore the probiogenomic characteristics of artisanal bacteriocin-producing Enterococcus faecium BGZLM1-5 and its potential application in reducing Listeria monocytogenes in a milk model. The BGZLM1-5 strain was isolated from raw cow's milk from households in the Zlatar Mountain region. The whole genome sequencing approach and bioinformatics analyses reveal that the strain BGZLM1-5 is non-pathogenic to humans. Bacteriocin-containing supernatant was thermally stable and antimicrobial activity retained 75% of the initial activity compared with that of the control after treatment at 90 °C for 30 min. Antimicrobial activity maintained relative stability at pH 3-11 and retained 62.5% of the initial activity compared with that of the control after treatment at pH 1, 2, and 12. The highest activity of the partially purified bacteriocin was obtained after precipitation at 40% saturation with ammonium sulfate and further purification by mixing with chloroform. Applying 3% and 5% (v/v) of the bacteriocin-containing supernatant and 0.5% (v/v) of the partially purified bacteriocin decreased the viable number of L. monocytogenes ATCC19111 after three days of milk storage by 23.5%, 63.5%, and 58.9%, respectively.
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Affiliation(s)
- Nikola Popović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia; (D.S.); (D.R.); (K.V.); (J.Đ.); (N.G.); (A.T.-V.)
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Ryu J, Choi Y, Yoon Y. Comparison of genetic variations between high- and low-risk Listeria monocytogenes isolates using whole-genome de novo sequencing. Front Microbiol 2023; 14:1163841. [PMID: 37533826 PMCID: PMC10393277 DOI: 10.3389/fmicb.2023.1163841] [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: 02/11/2023] [Accepted: 05/12/2023] [Indexed: 08/04/2023] Open
Abstract
In this study, genetic variations and characteristics of Listeria monocytogenes isolates from enoki mushrooms (23), smoked ducks (7), and processed ground meat products (30) were examined with respect to hemolysis, virulence genes, growth patterns, and heat resistance. The isolates that showed the highest pathogenicity and the lowest pathogenicity were analyzed to obtain the whole-genome sequence, and the sequences were further analyzed to identify genetic variations in virulence, low-temperature growth-related, and heat resistance-related factors. All isolates had β-hemolysis and virulence genes (actA, hlyA, inlA, inlB, and plcB). At low temperatures, isolates with high growth (L. monocytogenes strains SMFM 201803 SD 1-1, SMFM 201803 SD 4-2, and SMFM 201804 SD 5-3) and low growth (L. monocytogenes strains SMFM 2019-FV43, SMFM 2019-FV42, and SMFM 2020-BT30) were selected. Among them, L. monocytogenes SMFM 201804 SD 5-3 showed the highest resistance at 60°C and 70°C. The strains SMFM 201804 SD 5-3 (high-risk) and SMFM 2019-FV43 (low-risk) harbored 45 virulence genes; 41 single nucleotide variants (SNVs) were identified between these two isolates. A comparison of 26 genes related to low-temperature growth revealed 18 SNVs between these two isolates; a comparison of the 21 genes related to heat resistance revealed 16 SNVs. These results indicate that the differences in the pathogenicity of L. monocytogenes SMFM 201804 SD 5-3 and L. monocytogenes SMFM 2019-FV43 are associated with the SNVs identified in virulence genes, low-temperature growth-related genes, and heat resistance-related genes.
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Affiliation(s)
- Jihye Ryu
- Department of Food and Nutrition, Sookmyung Women’s University, Seoul, Republic of Korea
| | - Yukyung Choi
- Risk Analysis Research Center, Sookmyung Women’s University, Seoul, Republic of Korea
| | - Yohan Yoon
- Department of Food and Nutrition, Sookmyung Women’s University, Seoul, Republic of Korea
- Risk Analysis Research Center, Sookmyung Women’s University, Seoul, Republic of Korea
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Yoo JM, Song JH, Vasquez R, Hwang IC, Lee JS, Kang DK. Characterization of Novel Amylase-Sensitive, Anti-Listerial Class IId Bacteriocin, Agilicin C7 Produced by Ligilactobacillus agilis C7. Food Sci Anim Resour 2023; 43:625-638. [PMID: 37483999 PMCID: PMC10359839 DOI: 10.5851/kosfa.2023.e24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 07/25/2023] Open
Abstract
Among various biological agents, bacteriocins are important candidates to control Listeria monocytogenes which is a foodborne pathogen. In this study, a novel bacteriocin, named agilicin C7, was isolated from Ligilactobacillus agilis C7 showing inhibitory activity against L. monocytogenes. Agilicin C7 biosynthesis gene was characterized by bioinformatics analyses and heterologously expressed in Escherichia coli for further study. The anti-listeria activity of recombinant agilicin C7 (r-agilicin C7) was lost by proteases and α-amylase, suggesting that agilicin C7 is a glycoprotein. r-Agilicin C7 has wide pH and thermal stability and is also stable in various organic solvents. It destroyed L. monocytogenes by damaging the integrity of the cell envelope. These properties of r-agilicin C7 indicate that agilicin C7 is a novel amylase-sensitive anti-listerial Class IId bacteriocin. Physicochemical stability and inhibitory activity against L. monocytogenes of r-agilicin C7 suggest that it can be applied to control L. monocytogenes in the food industry, including dairy and meat products.
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Affiliation(s)
- Jeong Min Yoo
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
| | - Ji Hoon Song
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
| | - Robie Vasquez
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
| | - In-Chan Hwang
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
| | - Jae Seung Lee
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
| | - Dae-Kyung Kang
- Department of Animal Biotechnology,
College of Biotechnology and Bioengineering, Dankook
University, Cheonan 31116, Korea
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Joo JH, Han MH, Kim JI, Kim JE, Jung KH, Oh HS, Chung YS, An HJ, Lee JD, Moon GS, Lee HY. Antimicrobial Activity of Smilax china L. Root Extracts against the Acne-Causing Bacterium, Cutibacterium acnes, and Its Active Compounds. Molecules 2022; 27:molecules27238331. [PMID: 36500424 PMCID: PMC9736125 DOI: 10.3390/molecules27238331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/17/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
The root of Smilax china L. is used in traditional Korean medicine. We found that the Smilax china L. root extract has strong antimicrobial activity against two Cutibacterium acnes strains (KCTC 3314 and KCTC 3320). The aim of this study was to identify the beneficial properties of Smilax china L. extracts for their potential use as active ingredients in cosmetics for the treatment of human skin acne. The high-performance liquid chromatography (HPLC) and liquid chromatography-hybrid quadrupole time-of-flight mass spectrometry (LC/QTOF/MS) methods were used to obtain the profile of secondary metabolites from the ethyl acetate-soluble fraction of the crude extract. Agar diffusion and resazurin-based broth microdilution assays were used to evaluate antimicrobial activity and minimum inhibitory concentrations (MIC), respectively. Among the 24 metabolites, quercetin, resveratrol, and oxyresveratrol were the most potent compounds against Cutibacterium acnes. Minimum inhibitory concentrations of quercetin, resveratrol, and oxyresveratrol were 31.25, 125, and 250 μg/mL, respectively.
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Affiliation(s)
- Ji-Hae Joo
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
| | - Min-Hui Han
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
| | - Ja-I Kim
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
| | - Jong-Eun Kim
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
| | - Kyung-Hwan Jung
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
| | - Han Sun Oh
- Beauty Cosmetic Co., Ltd., 274-14 Wonnamsandan-ro, Wonnam-myeon 32740, Eumseong-gun, Chungbuk, Republic of Korea
| | - Young Soo Chung
- Beauty Cosmetic Co., Ltd., 274-14 Wonnamsandan-ro, Wonnam-myeon 32740, Eumseong-gun, Chungbuk, Republic of Korea
| | - Hyun Jin An
- Yeomyung Biochem Co., Ltd., 7-4 Tabyeon 1-gil, Gangane-myeon, Heungdeok-gu, Cheongju-si 28171, Chungbuk, Republic of Korea
| | - Jae Duk Lee
- Yeomyung Biochem Co., Ltd., 7-4 Tabyeon 1-gil, Gangane-myeon, Heungdeok-gu, Cheongju-si 28171, Chungbuk, Republic of Korea
| | - Gi-Seong Moon
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
- Correspondence: (G.-S.M.); (H.-Y.L.)
| | - Hyang-Yeol Lee
- Division of Food Science and Biotechnology, Korea National University of Transportation, Chungju 27909, Chungbuk, Republic of Korea
- Correspondence: (G.-S.M.); (H.-Y.L.)
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Application of Melting Temperature in Melting Curve of qPCR to Determine Listeria monocytogenes Presence in Golden Needle Mushroom. J FOOD QUALITY 2022. [DOI: 10.1155/2022/1136105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study developed a method to determine Listeria monocytogenes presence in golden needle mushrooms by melting temperature (Tm) in a melting curve of qPCR. For identical samples (n = 35), the results for L. monocytogenes presence determined by Tm values were compared with the results from a conventional detection method (culture-based procedures). The samples that showed the negative result in the conventional method were subsequently examined with the Tm value of qPCR. Tm values for Escherichia coli (87.5 ± 0.4°C), Salmonella (87.6 ± 0.1°C), Staphylococcus aureus (79.2 ± 0.0°C), Listeria innocua (80.5 ± 0.0°C), Listeria ivanovii (79.0 ± 0.4°C), Listeria welshimeri (78.8 ± 0.4°C), and Listeria monocytogenes (83.7 ± 0.2°C) were different, and thus, no similar Tm values of L. monocytogenes were observed with other bacteria. From 35 golden needle mushrooms, 26 samples (74.3%) were L. monocytogenes positive with Tm value of qPCR, but only 13 samples (37.1%) of 35 samples were L. monocytogenes positive using the conventional detection method. Of the samples that were positive with the Tm value of qPCR, but negative with the conventional detection method, 4 samples were selected randomly, and typical L. monocytogenes colonies were detected in CHROMagar. These results indicate that the Tm value in the melting curve of qPCR can be used to detect L. monocytogenes in golden needle mushrooms.
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