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Bian L, Zhang S, Chang T, Zhang J, Zhu X, Zhang C. Enhanced catalytic performance and pH stability of Streptomyces Laccase Y230R and its degradation of malachite green. Int J Biol Macromol 2024; 277:134108. [PMID: 39048010 DOI: 10.1016/j.ijbiomac.2024.134108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/11/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
The escalating threat of malachite green (MG) pollution poses significant risks to ecosystems. Saturation mutation targeting Tyr230 of small laccase (SLAC) from Streptomyces coelicolor yielded Y230R, exhibiting a remarkable 104 % increase in specific activity. Notably, this mutation achieved dual enhancements in both activity and pH stability. Molecular dynamics simulation revealed higher structural stability of Y230R compared to wild-type (WT) across varying pH levels. The increased count of hydrogen bonds in Y230R compared to WT may be contribute to its stability. Y230R demonstrated superior catalytic efficiency (67.0 %) in MG decolorization, maintaining over 90 % activity after 30 min incubation in MG solution (500 mg/L), highlighting enhanced tolerance compared to WT. Molecular docking analysis attributed the differential catalytic effects on MG and ABTS to structural disparities and hydrogen bonding. Y230R stands as a promising composite mutant for future laccase engineering and industrial applications.
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Affiliation(s)
- Luyao Bian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Silu Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tingting Chang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiacheng Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaoyu Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Chong Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
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2
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Liu M, Zhang X, Luan H, Zhang Y, Xu W, Feng W, Song P. Bioenzymatic detoxification of mycotoxins. Front Microbiol 2024; 15:1434987. [PMID: 39091297 PMCID: PMC11291262 DOI: 10.3389/fmicb.2024.1434987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024] Open
Abstract
Mycotoxins are secondary metabolites produced during the growth, storage, and transportation of crops contaminated by fungi and are physiologically toxic to humans and animals. Aflatoxin, zearalenone, deoxynivalenol, ochratoxin, patulin, and fumonisin are the most common mycotoxins and can cause liver and nervous system damage, immune system suppression, and produce carcinogenic effects in humans and animals that have consumed contaminated food. Physical, chemical, and biological methods are generally used to detoxify mycotoxins. Although physical methods, such as heat treatment, irradiation, and adsorption, are fast and simple, they have associated problems including incomplete detoxification, limited applicability, and cause changes in food characteristics (e.g., nutritive value, organoleptic properties, and palatability). Chemical detoxification methods, such as ammonification, ozonation, and peroxidation, pollute the environment and produce food safety risks. In contrast, bioenzymatic methods are advantageous as they achieve selective detoxification and are environmentally friendly and reusable; thus, these methods are the most promising options for the detoxification of mycotoxins. This paper reviews recent research progress on common mycotoxins and the enzymatic principles and mechanisms for their detoxification, analyzes the toxicity of the degradation products and describes the challenges faced by researchers in carrying out enzymatic detoxification. In addition, the application of enzymatic detoxification in food and feed is discussed and future directions for the development of enzymatic detoxification methods are proposed for future in-depth study of enzymatic detoxification methods.
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Affiliation(s)
| | | | | | | | | | | | - Peng Song
- College of Life Sciences, Liaocheng University, Liaocheng, China
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3
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Bian L, Zhang S, Chang T, Zhang J, Zhang C. Engineering Site 228 of Streptomyces coelicolor Laccase for Optimizing Catalytic Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6019-6027. [PMID: 38447069 DOI: 10.1021/acs.jafc.4c00189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Malachite green (MG) poses a formidable threat to ecosystems and human health. Laccase emerges as a promising candidate for MG degradation, prompting an investigation into the catalytic activity modulation of a small laccase (SLAC) from Streptomyces coelicolor, with a focus on amino acid position 228. Through saturation mutagenesis, five mutants with a 50% increase in the specific activity were generated. Characterization revealed notable properties, Km of E228F was 8.8% of the wild type (WT), and E288T exhibited a 133% kcat compared to WT. Structural analyses indicated improved hydrophobicity and electrostatic potential on the mutants' surfaces, with the stable E228F-ABTS complex exhibiting reduced flexibility, possibly contributing to the observed decrease in turnover rate. Mutants demonstrated enhanced MG decolorization, particularly E228G. Site 228 acts as a crucial functional control switch, suggesting its potential role in SLAC engineering. This study provides insights into laccase modulation and offers promising avenues for enzymatic bioremediation applications.
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Affiliation(s)
- Luyao Bian
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Silu Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Tingting Chang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jiacheng Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Chong Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
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Wang X, Cui L, Liu M, Qi Z, Luo H, Huang H, Tu T, Qin X, Wang Y, Zhang J, Wang Y, Yao B, Bai Y, Su X. Theoretical insights into the mechanism underlying aflatoxin B 1 transformation by the BsCotA-methyl syringate system. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116049. [PMID: 38301584 DOI: 10.1016/j.ecoenv.2024.116049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Global concern exists regarding the contamination of food and animal feed with aflatoxin B1 (AFB1), which poses a threat to the health of both humans and animals. Previously, we found that a laccase from Bacillus subtilis (BsCotA) effectively detoxified AFB1 in a reaction mediated by methyl syringate (MS), although the underlying mechanism has not been determined. Therefore, our primary objective of this study was to explore the detoxification mechanism employed by BsCotA. First, the enzyme and mediator dependence of AFB1 transformation were studied using the BsCotA-MS system, which revealed the importance of MS radical formation during the oxidation process. Aflatoxin Q1 (AFQ1) resulting from the direct oxidation of AFB1 by BsCotA, was identified using ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The results of UPLC-MS/MS and density functional theory calculations indicated that the products included AFQ1, AFB1-, and AFD1-MS-coupled products in the BsCotA-MS system. The toxicity evaluations revealed that the substances derived from the transformation of AFB1 through the BsCotA-MS mechanism exhibited markedly reduced toxicity compared to AFB1. Finally, we proposed a set of different AFB1-transformation pathways generated by the BsCotA-MS system based on the identified products. These findings greatly enhance the understanding of the AFB1-transformation mechanism of the laccase-mediator system.
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Affiliation(s)
- Xiaolu Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lin Cui
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Mengting Liu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Zheng Qi
- Engineering Research Center for Medicine, College of Pharmacy, Harbin University of Commerce, Harbin 150076, China
| | - Huiying Luo
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huoqing Huang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Tao Tu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xing Qin
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuan Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jie Zhang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yaru Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Bin Yao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yingguo Bai
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Xiaoyun Su
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Cheng S, Wu T, Zhang H, Sun Z, Mwabulili F, Xie Y, Sun S, Ma W, Li Q, Yang Y, Wu X, Jia H. Mining Lactonase Gene from Aflatoxin B 1-Degrading Strain Bacillus megaterium and Degrading Properties of the Recombinant Enzyme. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20762-20771. [PMID: 38103014 DOI: 10.1021/acs.jafc.3c05725] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Mycotoxins are toxic secondary metabolites mainly produced by filamentous fungal species that commonly contaminate food and feed. Aflatoxin B1 (AFB1) is extremely toxic and seriously threatens the health of humans and animals. In this work, the Bacillus megaterium HNGD-A6 was obtained and showed a 94.66% removal ability of AFB1 by employing extracellular enzymes as the degrading active substance. The degradation products were P1 (AFD1, C16H14O5) and P2 (C14H16N2O2), and their toxicity was greatly reduced compared to that of AFB1. The AttM gene was mined by BlastP comparison and successfully expressed in Escherichia coli BL21. AttM could degrade 86.78% of AFB1 at pH 8.5 and 80 °C, as well as 81.32% of ochratoxin A and 67.82% of zearalenone. The ability of AttM to degrade a wide range of toxins and its resistance to high temperatures offer the possibility of its use in food or feed applications.
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Affiliation(s)
- Sizhong Cheng
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Tian Wu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Hongxin Zhang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Zhongke Sun
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
| | - Fred Mwabulili
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Yanli Xie
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Shumin Sun
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Weibin Ma
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Qian Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Yuhui Yang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
| | - Xingquan Wu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
| | - Hang Jia
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
- Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Zhengzhou, Henan 450001, People's Republic of China
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Fang J, Sheng L, Ye Y, Ji J, Sun J, Zhang Y, Sun X. Recent advances in biosynthesis of mycotoxin-degrading enzymes and their applications in food and feed. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 38108665 DOI: 10.1080/10408398.2023.2294166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Mycotoxins are secondary metabolites produced by fungi in food and feed, which can cause serious health problems. Bioenzymatic degradation is gaining increasing popularity due to its high specificity, gentle degradation conditions, and environmental friendliness. We reviewed recently reported biosynthetic mycotoxin-degrading enzymes, traditional and novel expression systems, enzyme optimization strategies, food and feed applications, safety evaluation of both degrading enzymes and degradation products, and commercialization potentials. Special emphasis is given to the novel expression systems, advanced optimization strategies, and safety considerations for industrial use. Over ten types of recombinases such as oxidoreductase and hydrolase have been studied in the enzymatic hydrolysis of mycotoxins. Besides traditional expression system of Escherichia coli and yeasts, these enzymes can also be expressed in novel systems such as Bacillus subtilis and lactic acid bacteria. To meet the requirements of industrial applications in terms of degradation efficacy and stability, genetic engineering and computational tools are used to optimize enzymatic expression. Currently, registration and technical difficulties have restricted commercial application of mycotoxin-degrading enzymes. To overcome these obstacles, systematic safety evaluation of both biosynthetic enzymes and their degradation products, in-depth understanding of degradation mechanisms and a comprehensive evaluation of their impact on food and feed quality are urgently needed.
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Affiliation(s)
- Jinpei Fang
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Lina Sheng
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Yongli Ye
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Jian Ji
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Jiadi Sun
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Yinzhi Zhang
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
| | - Xiulan Sun
- School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, P.R. China
- Yixing Institute of Food and Biotechnology Co, Ltd, Yixing, Jiangsu, P.R China
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Sun H, He Z, Xiong D, Long M. Mechanisms by which microbial enzymes degrade four mycotoxins and application in animal production: A review. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 15:256-274. [PMID: 38033608 PMCID: PMC10685049 DOI: 10.1016/j.aninu.2023.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/10/2023] [Accepted: 09/14/2023] [Indexed: 12/02/2023]
Abstract
Mycotoxins are toxic compounds that pose a serious threat to animal health and food safety. Therefore, there is an urgent need for safe and efficient methods of detoxifying mycotoxins. As biotechnology has continued to develop, methods involving biological enzymes have shown great promise. Biological enzymatic methods, which can fundamentally destroy the structures of mycotoxins and produce degradation products whose toxicity is greatly reduced, are generally more specific, efficient, and environmentally friendly. Mycotoxin-degrading enzymes can thus facilitate the safe and effective detoxification of mycotoxins which gives them a huge advantage over other methods. This article summarizes the newly discovered degrading enzymes that can degrade four common mycotoxins (aflatoxins, zearalenone, deoxynivalenol, and ochratoxin A) in the past five years, and reveals the degradation mechanism of degrading enzymes on four mycotoxins, as well as their positive effects on animal production. This review will provide a theoretical basis for the safe treatment of mycotoxins by using biological enzyme technology.
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Affiliation(s)
- Huiying Sun
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Affairs, China
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Ziqi He
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Affairs, China
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Dongwei Xiong
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Affairs, China
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
| | - Miao Long
- Key Laboratory of Livestock Infectious Diseases, Ministry of Education, Key Laboratory of Ruminant Infectious Disease Prevention and Control (East), Ministry of Agriculture and Rural Affairs, China
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China
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8
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Huang M, Guo J, Jia Y, Liao C, He L, Li J, Wei Y, Chen S, Chen J, Shang K, Guo R, Ding K, Yu Z. A Bacillus subtilis Strain ZJ20 with AFB1 Detoxification Ability: A Comprehensive Analysis. BIOLOGY 2023; 12:1195. [PMID: 37759594 PMCID: PMC10525747 DOI: 10.3390/biology12091195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023]
Abstract
As a class I carcinogen, aflatoxin can cause serious damage to various tissues and organs through oxidative stress injuries. The liver, as the target organ of AFB1, is the most seriously damaged. Biological methods are commonly used to degrade AFB1. In our study, the aflatoxin B1-degrading strain ZJ20 was screened from AFB1-contaminated feed and soil, and the degradation of AFB1 by ZJ20 was investigated. The whole genome of strain ZJ20 was analyzed, revealing the genomic complexity of strain ZJ20. The 16S rRNA analysis of strain ZJ20 showed 100% identity to Bacillus subtilis IAM 12118. Through whole gene functional annotation, it was determined that ZJ20 has high antioxidant activity and enzymatic activity; more than 100 CAZymes and 11 gene clusters are involved in the production of secondary metabolites with antimicrobial properties. In addition, B. subtilis ZJ20 was predicted to contain a cluster of genes encoding AFB1-degrading enzymes, including chitinase, laccase, lactonase, and manganese oxidase. The comprehensive analysis of B. subtilis provides a theoretical basis for the subsequent development of the biological functions of ZJ20 and the combinatorial enzyme degradation of AFB1.
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Affiliation(s)
- Meixue Huang
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jing Guo
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Yanyan Jia
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Chengshui Liao
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Lei He
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jing Li
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ying Wei
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Songbiao Chen
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Jian Chen
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ke Shang
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Rongxian Guo
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Ke Ding
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
| | - Zuhua Yu
- Luoyang Key Laboratory of Live Carrier Biomaterial and Animal Disease Prevention and Control, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; (M.H.); (J.G.); (Y.J.); (C.L.); (L.H.); (J.L.); (Y.W.); (S.C.); (J.C.); (K.S.); (R.G.)
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
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Lou H, Yang C, Gong Y, Li Y, Li Y, Tian S, Zhao Y, Zhao R. Edible fungi efficiently degrade aflatoxin B 1 in cereals and improve their nutritional composition by solid-state fermentation. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131139. [PMID: 36921416 DOI: 10.1016/j.jhazmat.2023.131139] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/14/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Aflatoxin B1 (AFB1) is extremely harmful to human and livestock. Laccase, a green catalyst, has been shown to effectively degrade AFB1 and can be obtained from edible fungi. The objective of this study was to screen edible fungi with high laccase activity and determine their effects on the degradation of AFB1 in cereals and the nutritional composition of the cereals through solid-state fermentation. Results from plate assays confirmed that 51 of the 55 tested edible fungi could secrete laccase. Submerged fermentation results showed that 17 of the 51 edible fungi had maximum laccase activity exceeding 100 U/L. The growth of different edible fungi varied significantly in corn, rice and wheat. More importantly, 6 edible fungi with high laccase activity and good growth could efficiently degrade AFB1 in cereals. We found for the first time that Ganoderma sinense could not only secrete highly active laccase and efficiently degrade AFB1 in corn by 92.91%, but also improve the nutritional quality of corn. These findings reveal that solid-state fermentation of cereals with edible fungi is an environmentally friendly and efficient approach for degrading AFB1 in cereals and improving the nutritional composition of cereals.
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Affiliation(s)
- Haiwei Lou
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China; Department of Grain Science and Industry, Kansas State University, Manhattan 66506, USA
| | - Chuangming Yang
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ying Gong
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yang Li
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yonghui Li
- Department of Grain Science and Industry, Kansas State University, Manhattan 66506, USA
| | - Shuangqi Tian
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yu Zhao
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Renyong Zhao
- National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
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Efremenko E, Senko O, Maslova O, Lyagin I, Aslanli A, Stepanov N. Destruction of Mycotoxins in Poultry Waste under Anaerobic Conditions within Methanogenesis Catalyzed by Artificial Microbial Consortia. Toxins (Basel) 2023; 15:205. [PMID: 36977096 PMCID: PMC10058804 DOI: 10.3390/toxins15030205] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
To reduce the toxicity of modern feeds polluted by mycotoxins, various sorbents are added to them when feeding animals. A part of the mycotoxins is excreted from the body of animals with these sorbents and remains in the manure. As a result, bulk animal wastes containing mixtures of mycotoxins are formed. It is known that it is partially possible to decrease the initial concentration of mycotoxins in the process of anaerobic digestion (AD) of contaminated methanogenic substrates. The aim of this review was to analyze the recent results in destruction of mycotoxins under the action of enzymes present in cells of anaerobic consortia catalyzing methanogenesis of wastes. The possible improvement of the functioning of the anaerobic artificial consortia during detoxification of mycotoxins in the bird droppings is discussed. Particular attention was paid to the possibility of effective functioning of microbial enzymes that catalyze the detoxification of mycotoxins, both at the stage of preparation of poultry manure for methanogenesis and directly in the anaerobic process itself. The sorbents with mycotoxins which appeared in the poultry wastes composed one of the topics of interest in this review. The preliminary alkaline treatment of poultry excreta before processing in AD was considered from the standpoint of effectively reducing the concentrations of mycotoxins in the waste.
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Affiliation(s)
- Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, Lenin Hills 1/3, 119991 Moscow, Russia
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Dong CD, Tiwari A, Anisha GS, Chen CW, Singh A, Haldar D, Patel AK, Singhania RR. Laccase: A potential biocatalyst for pollutant degradation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 319:120999. [PMID: 36608728 DOI: 10.1016/j.envpol.2023.120999] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
In the continual march to a predominantly urbanized civilization, anthropogenic activities have increased scrupulously, industrialization have occurred, economic growth has increased, and natural resources are being exploited, causing huge waste management problems, disposal issues, and the evolution of several pollutants. In order to have a sustainable environment, these pollutants need to be removed and degraded. Bioremediation employing microorganisms or enzymes can be used to treat the pollutants by degrading and/or transforming the pollutants into different form which is less or non-toxic to the environment. Laccase is a diverse enzyme/biocatalyst belonging to the oxidoreductase group of enzymes produced by microorganisms. Due to its low substrate specificity and monoelectronic oxidation of substrates in a wide range of complexes, it is most commonly used to degrade chemical pollutants. For degradation of emerging pollutants, laccase can be efficiently employed; however, large-scale application needs reusability, thermostability, and operational stability which necessitated strategies like immobilization and engineering of robust laccase possessing desirable properties. Immobilization of laccase for bioremediation, and treatment of wastewater for degrading emerging pollutants have been focussed for sustainable development. Challenges of employing biocatalysts for these applications as well as engineering robust laccase have been highlighted in this study.
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Affiliation(s)
- Cheng-Di Dong
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Department of Marine Environmental Engineering, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Ashutosh Tiwari
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Grace Sathyanesan Anisha
- Post-graduate and Research Department of Zoology, Government College for Women, Thiruvananthapuram, 695014, Kerala, India
| | - Chiu-Wen Chen
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Department of Marine Environmental Engineering, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Anusuiya Singh
- Department of Marine Environmental Engineering, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Dibyajyoti Haldar
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, 641114, India
| | - Anil Kumar Patel
- Institute of Aquatic Science and Technology, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow, 226 029, Uttar Pradesh, India
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, College of Hydrosphere, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow, 226 029, Uttar Pradesh, India.
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