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Zhang Z, Xu Y, Li X, Chi L, Li Y, Xu C, Mu G, Zhu X. Modulating Whey Proteins Antigenicity with Lactobacillus delbrueckii subsp. bulgaricus DLPU F-36 Metabolites: Insights from Spectroscopic and Molecular Docking Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15198-15212. [PMID: 38941263 DOI: 10.1021/acs.jafc.3c08874] [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: 06/30/2024]
Abstract
Numerous studies have highlighted the potential of Lactic acid bacteria (LAB) fermentation of whey proteins for alleviating allergies. Nonetheless, the impact of LAB-derived metabolites on whey proteins antigenicity during fermentation remains uncertain. Our objective was to elucidate the impact of small molecular metabolites on the antigenicity of α-lactalbumin (α-LA) and β-lactoglobulin (β-LG). Through metabolomic analysis, we picked 13 bioactive small molecule metabolites from Lactobacillus delbrueckii subsp. bulgaricus DLPU F-36 for coincubation with α-LA and β-LG, respectively. The outcomes revealed that valine, arginine, benzoic acid, 2-keto butyric acid, and glutaric acid significantly diminished the sensitization potential of α-LA and β-LG, respectively. Moreover, chromatographic analyses unveiled the varying influence of small molecular metabolites on the structure of α-LA and β-LG, respectively. Notably, molecular docking underscored that the primary active sites of α-LA and β-LG involved in protein binding to IgE antibodies aligned with the interaction sites of small molecular metabolites. In essence, LAB-produced metabolites wield a substantial influence on the antigenic properties of whey proteins.
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Affiliation(s)
- Zhao Zhang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - YunPeng Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xinling Li
- Xinjiang Tianrun Biol Technol Co., Ltd., Urumqi 830011, China
| | - Lei Chi
- Dalian Municipal Women and Children's Medical Center Group, Dalian 116012, China
| | - Yue Li
- Dalian Municipal Women and Children's Medical Center Group, Dalian 116012, China
| | - Chao Xu
- Dalian Municipal Women and Children's Medical Center Group, Dalian 116012, China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xuemei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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2
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Zerizer H, Boughachiche F, Mebarki A, Sinacer O, Rachedi K, Ait Kaki A. Partitioning purification, biochemical characterization, and milk coagulation efficiency of protease from a newly Streptomyces sp. isolate. Braz J Microbiol 2024:10.1007/s42770-024-01386-y. [PMID: 38874743 DOI: 10.1007/s42770-024-01386-y] [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: 12/10/2023] [Accepted: 05/13/2024] [Indexed: 06/15/2024] Open
Abstract
An actinobacteria strain was isolated from an olive waste mill and tested for protease production on skimmed milk media. The strain identification was achieved through both 16 S rDNA sequencing and phenotypic characterization. The enzyme was purified using the ammonium sulfate/t-butanol three-phase partitioning (TPP) method, followed by characterization to investigate the effect of pH, temperature, and various chemical agents. Subsequently, the enzyme was assessed for its milk coagulation activity. The strain belonging to the Streptomyces genera, exhibits significant phylogenetic and phenotypic differences from the aligned species, suggesting its novelty as a new strain. The enzyme was best separated in the TPP aqueous phase with a 5.35 fold and 56.25% yield. Optimal activity was observed at pH 9.0 and 60 °C, with more than half of the activity retained within the pH range of 7-10 over one hour. The protease demonstrated complete stability between 30 and 60 °C. While metallic ions enhanced enzyme activity, EDTA acted as an inhibitor. The enzyme displayed resistance to H2O2, SDS, Tween 80, and Triton X-100. Notably, it was activated in organic solvents (ethyl acetate, petroleum ether, and xylene), maintaining > 75% of its original activity in butanol, ethanol, and methanol. Additionally, the enzyme yielded high milk coagulant activity of 11,478 SU/mL. The new Streptomyces sp. protease revealed high activity and stability under a wide range of biochemical conditions. Its use in the dairy industry appears particularly promising. Further industrial process investigations will be valuable in determining potential uses for this enzyme.
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Affiliation(s)
- Habiba Zerizer
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria.
| | - Faiza Boughachiche
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria
| | - Abdelouahab Mebarki
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria
| | - Oussama Sinacer
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria
| | - Kounouz Rachedi
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria
| | - Amel Ait Kaki
- Laboratory of Biotechnology and Food Quality (BIOQUAL), Institute of Nutrition, Food and Agri-Food Technologies (INATAA), Mentouri Brothers University, Constantine 1, Constantine, Algeria
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3
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Potential of the Liquid Fermentation of Fishery Waste by Paenibacillus elgii for Metalloprotease Production. Polymers (Basel) 2022; 14:polym14132741. [PMID: 35808786 PMCID: PMC9268979 DOI: 10.3390/polym14132741] [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: 05/11/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 02/04/2023] Open
Abstract
This study attempted to use fishery processing wastes to produce protease by Paenibacillus elgii TKU051. Of the tested wastes, tuna head powder (THP) was found to be the most effective carbon and nitrogen (C/N) source, and the optimal conditions were as follows: 0.811% THP, 0.052% K2HPO4, 0.073% MgSO4, initial pH of 8.96, incubation temperature of 31.4 °C, and incubation time of 3.092 days to achieve the maximum protease activity of 2.635 ± 0.124 U/mL. A protease with a molecular weight of 29 kDa was purified and biochemically characterized. Liquid chromatography with tandem mass spectrometry analysis revealed an amino acid sequence of STVHYSTR of P. elgii TKU051 protease, suggesting that the enzyme may belong to the M4 family of metalloproteases. The optimal activity of the enzyme was achieved at 60 °C and pH 8. P. elgii TKU051 protease was strongly inhibited by ethylenediaminetetraacetic acid and 1,10-phenanthroline, indicating its precise metalloprotease property. P. elgii TKU051 protease displayed the activity toward casein and raw fishery wastes such as tuna heads, tuna viscera, shrimp heads, and squid pens. Finally, the purified P. elgii TKU051 protease could improve the free-radical scavenging activity of fishery wastes. In short, P. elgii TKU051 has potential application in eco-friendly approaches to efficiently convert fishery wastes to metalloprotease.
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Lee DH, Doan CT, Tran TN, Nguyen VB, Nguyen AD, Wang CL, Wang SL. Proteases Production and Chitin Preparation from the Liquid Fermentation of Chitinous Fishery By-Products by Paenibacillus elgii. Mar Drugs 2021; 19:477. [PMID: 34564139 PMCID: PMC8467606 DOI: 10.3390/md19090477] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
Chitinous fishery by-products have great application in the production of various bioactive compounds. In this study, Paenibacillus elgii TKU051, a protease-producing bacterial strain, was isolated using a medium containing 1% squid pens powder (SPP) as the sole carbon/nitrogen (C/N) source. P. elgii TKU051 was found to produce at least four proteases with molecular weights of 100 kDa, 57 kDa, 43 kDa, and 34 kDa (determined by the gelatin zymography method). A P. elgii TkU051 crude enzyme cocktail was optimally active at pH 6-7 and 60 °C. The 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and α-glucosidase inhibitory activity of the hydrolysates obtained from the hydrolysis of shrimp shell powder, shrimp head powder, shrimp meat powder, fish head powder and soya bean powder catalyzed by the P. elgii TkU051 crude enzyme cocktail were also evaluated. P. elgii TKU051 exhibited a high deproteinization capacity (over 94%) on different kinds of shrimp waste (shrimp heads and shells; fresh and cooked shrimp waste; shrimp waste dried by oven and lyophilizer), and the Fourier-transform infrared spectroscopy profile of the chitin obtained from the deproteinization process displayed the characteristic of chitin. Finally, the obtained chitin exhibited an effect comparable to commercial chitin in terms of adsorption against Congo Red (90.48% and 90.91%, respectively). Thus, P. elgii TKU051 showed potential in the reclamation of chitinous fishery by-products for proteases production and chitin extraction.
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Affiliation(s)
- Dan-Hsin Lee
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (D.-H.L.); (C.T.D.)
| | - Chien Thang Doan
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (D.-H.L.); (C.T.D.)
- Faculty of Natural Sciences and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam;
| | - Thi Ngoc Tran
- Faculty of Natural Sciences and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam;
- Doctoral Program in Applied Sciences, Tamkang University, New Taipei City 25137, Taiwan
| | - Van Bon Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam; (V.B.N.); (A.D.N.)
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam; (V.B.N.); (A.D.N.)
| | - Chuan-Lu Wang
- Department of Fashion Beauty Design, Lan Yang Institute of Technology, Yilan County 26141, Taiwan;
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (D.-H.L.); (C.T.D.)
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan
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5
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Wang X, He L, Zhao Q, Shi Y, Chen Y, Huang A. Structural Analysis of a Novel Aspartic-Type Endopeptidase from Moringa oleifera Seeds and Its Milk-Clotting Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7377-7387. [PMID: 34180221 DOI: 10.1021/acs.jafc.1c02591] [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] [Indexed: 06/13/2023]
Abstract
A novel aspartic-type endopeptidase was previously obtained from Moringa oleifera seeds; however, its specific milk-clotting properties have remained unclear. Here, we used various biophysical and molecular simulation approaches for characterizing the structure and function of the aspartic-type endopeptidase. The endopeptidase was preferentially active toward κ-casein (CN) and hydrolyzed it more than calf rennet; however, its ability to hydrolyze α-CN and β-CN was weaker than that of calf rennet. The endopeptidase cleaved κ-CN at Gln135-Asp136 and generated a 15 588.18 Da peptide with 135 amino acids. We further simulated the docking complex of the endopeptidase and κ-CN and found out that they possibly combined with each other via hydrogen bonds. The flocculation reaction between the endopeptidase and κ-CN indicated that milk coagulation occurred within 60 min. Overall, our observations suggest that the aspartic-type endopeptidase can be a potential rennet alternative for cheese making.
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Affiliation(s)
- Xuefeng Wang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Li He
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Qiong Zhao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yanan Shi
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yue Chen
- Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan, China
| | - Aixiang Huang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
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6
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Taser B, Ozkan H, Adiguzel A, Orak T, Baltaci MO, Taskin M. Preparation of chitosan from waste shrimp shells fermented with Paenibacillus jamilae BAT1. Int J Biol Macromol 2021; 183:1191-1199. [PMID: 33989684 DOI: 10.1016/j.ijbiomac.2021.05.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 05/03/2021] [Accepted: 05/09/2021] [Indexed: 10/21/2022]
Abstract
In this study, chitin extraction from shrimp shell powder (SSP) using locally isolated Paenibacillus jamilae BAT1 (GenBank: MN176658), the preparation of chitosan from the extracted chitin, and the characterization and biological activity (antimicrobial and antioxidant) of the prepared chitosan (PC) were investigated. It was determined that P. jamilae BAT1 did not have chitinase activity but showed high protease activity and protein removal potential. Optimum pH, shell concentration and incubation time for deproteinization were determined as 7.0, 60 g/L and 4 days, respectively. Addition of KH2PO4 or MgSO4 did not affect chitin extraction and deproteinization yield. The maximum yields of deproteinization, demineralization and chitin extraction yields were 87.67, 41.95 and 24.5%, respectively. The viscosity-average molecular weight of PC was determined as 1.41 × 105 g/mol. The deacetylation degree of PC (86%) was found to be higher that of commercial chitosan (CC) (78%). DPPH scavenging activity of PC (IC50 0.59 mg/mL) was higher than that of CC (IC50 3.72 mg/mL). PC was found to have higher antimicrobial activity against the bacteria E. coli and S. aureus and the yeast C. albicans when compared to CC. This is the first study on the use of the bacterium P. jamilae in biological chitin extraction.
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Affiliation(s)
- Behiye Taser
- Department of Molecular Biology and Genetics, Faculty of Science and Letters, Agri Ibrahim Cecen University, Agri, Turkey
| | - Hakan Ozkan
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey.
| | - Ahmet Adiguzel
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey
| | - Tugba Orak
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey
| | - Mustafa Ozkan Baltaci
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey
| | - Mesut Taskin
- Department of Molecular Biology and Genetics, Science Faculty, Ataturk University, Erzurum, Turkey.
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7
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Qiao Z, Wang X, Zhang H, Han J, Feng H, Wu Z. Single-Cell Transcriptomics Reveals That Metabolites Produced by Paenibacillus bovis sp. nov. BD3526 Ameliorate Type 2 Diabetes in GK Rats by Downregulating the Inflammatory Response. Front Microbiol 2021; 11:568805. [PMID: 33424779 PMCID: PMC7793688 DOI: 10.3389/fmicb.2020.568805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 11/23/2020] [Indexed: 01/03/2023] Open
Abstract
Chronic low-grade inflammation is widely involved in the development and progression of metabolic syndrome, which can lead to type 2 diabetes mellitus (T2DM). Dysregulation of proinflammatory and anti-inflammatory cytokines not only impairs insulin secretion by pancreatic β-cells but also results in systemic complications in late diabetes. In our previous work, metabolites produced by Paenibacillus bovis sp. nov. BD3526, which were isolated from Tibetan yak milk, demonstrated antidiabetic effects in Goto–Kakizaki (GK) rats. In this work, we used single-cell RNA sequencing (scRNA-seq) to further explore the impact of BD3526 metabolites on the intestinal cell composition of GK rats. Oral administration of the metabolites significantly reduced the number of adipocytes in the colon tissue of GK rats. In addition, cluster analysis of immune cells confirmed that the metabolites reduced the expression of interleukin (IL)-1β in macrophages in the colon and increased the numbers of dendritic cells (DCs) and regulatory T (Treg) cells. Further mechanistic studies of DCs confirmed that activation of the WNT/β-catenin pathway in DCs promoted the expression of IL-10 and transforming growth factor (TGF)-β, thereby increasing the number of Treg cells.
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Affiliation(s)
- Zhenyi Qiao
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China.,State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Postdoctoral Workstation of Bright Dairy-Shanghai Jiao Tong University, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Xiaohua Wang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Huanchang Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Jin Han
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Huafeng Feng
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
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8
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Hua B, Feng H, Han J, Qiao Z, Wang X, Zhang Q, Liu Z, Wu Z. Isolation and Characterization of a New Fusaricidin-Type Antibiotic Produced by Paenibacillus bovis sp. nov BD3526. Curr Microbiol 2020; 77:3990-3999. [PMID: 33044619 DOI: 10.1007/s00284-020-02206-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Abstract
Paenibacillus bovis sp. nov BD3526, isolated from raw yak (Bos grunniens) milk, was able to produce antibacterial substances against Micrococcus luteus. The antibacterial substances produced by the strain BD3526 in 3% (w/v) wheat bran broth under aerobic conditions were precipitated from the cultivated broth with ammonium sulfate at 60% saturation. Two antibacterial compounds were obtained by Sephadex LH-20 chromatography and semi-preparative reverse-phase high-performance liquid chromatography (Semi-Pre RP-HPLC). The chemical structures of the two antibacterial compounds were further elucidated by means of ultra high-performance liquid chromatography-mass spectrometer/mass spectrometer (UHPLC-MS/MS). One compound, with a molecular mass of 883.56195 Da (M + H)+, was determined to be identical in chemical structure with that of the well-known compound fusaricidin A. The other antimicrobial compound with a molecular mass of 911.59393 Da (M + H)+ was determined to be a derivative of fusaricidin A by tandem mass spectrometry and amino acid composition analysis and was designed as bovisin. Bovisin possessed the stability against acid/alkali, heat and some proteases treatment, the same with the fusaricidin A. However, the minimal inhibition concentration (MIC) of bovisin on the tested indicator including Staphylococcus aureus, Micrococcus luteus, Listeria monocytogenes and Bacillus subtilis were 50, 50, 50, 50 μg/mL, respectively, slightly higher than those of fusaricidin A (6.25, 6.25, 6.25, 12.5 μg/mL), indicating bovisin with a weaker inhibitory activity.
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Affiliation(s)
- Bangqing Hua
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China
| | - Huafeng Feng
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China
| | - Jin Han
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China
| | - Zhenyi Qiao
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China
| | - Xiaohua Wang
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China
| | - Qiuxiang Zhang
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China.,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China.,Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Technology Center and Dairy Research Institute of Bright Dairy & Food Co. Ltd., Shanghai, 200436, People's Republic of China. .,Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, 200436, People's Republic of China.
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Putranto WS, Suhartono MT, Kusumaningrum HD, Giriwono PE, Mustopa AZ. A novel rennin like protease from Lactobacillus plantarum 1.13 isolated from Indonesian fermented meat (Bakasam). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Doan CT, Tran TN, Wang CL, Wang SL. Microbial Conversion of Shrimp Heads to Proteases and Chitin as an Effective Dye Adsorbent. Polymers (Basel) 2020; 12:E2228. [PMID: 32998333 PMCID: PMC7601101 DOI: 10.3390/polym12102228] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/26/2020] [Accepted: 09/26/2020] [Indexed: 02/06/2023] Open
Abstract
As a green and effective technique in the production of a large number of valuable products, the microbial conversion of chitinous fishery wastes is receiving much attention. In this study, protease production using the Paenibacillus mucilaginosus TKU032 strain was conducted on culture media containing several common types of chitinous fishery by-products serving as the carbon and nitrogen (C/N) nutrition source. Among the chitinous wastes, 1.5% (w/v) shrimp head powder (SHP) was found to be the most appropriate nutritional source for protease production when a maximal enzyme activity of 3.14 ± 0.1 U/mL was observed on the 3rd day of the culture period. The molecular mass of P. mucilaginosus TKU032 protease was estimated to be nearly 32 kDa by the polyacrylamide gel electrophoresis method. The residual SHP obtained from the culture medium was also considered to be utilized for chitin extraction. The deproteinization rate of the fermentation was estimated to be 45%, and the chitin obtained from fermented SHP (fSHP) displayed a similar characteristic Fourier-transform infrared spectroscopy (FTIR) profile as that from SHP. In addition, SHP, fSHP, and chitins obtained from SHP and fSHP were investigated for their adsorptive capacity of nine types of dyes, and chitin obtained from fSHP displayed a good adsorption rate on Congo Red and Red No. 7, at 99% and 97%, respectively. In short, the results provide potential support for the utilization of SHP in the production of P. mucilaginosus TKU032 protease via the fermentation as well as the preparation of chitin from fSHP as an effective dye adsorbent.
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Affiliation(s)
- Chien Thang Doan
- Department of Natural Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam; (C.T.D.); (T.N.T.)
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
| | - Thi Ngoc Tran
- Department of Natural Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam; (C.T.D.); (T.N.T.)
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
| | - Chuan-Lu Wang
- Department of Fashion Beauty Design, Lan Yang Institute of Technology, Yilan County 26141, Taiwan;
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan
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Wehaidy HR, Abdel Wahab WA, Kholif AM, Elaaser M, Bahgaat WK, Abdel-Naby MA. Statistical optimization of B. subtilis MK775302 milk clotting enzyme production using agro-industrial residues, enzyme characterization and application in cheese manufacture. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101589] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Fermentation conditions of serine/alkaline milk-clotting enzyme production by newly isolated Bacillus licheniformis BL312. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01513-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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13
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Ahmed SA, Saleh SA, Abdel-Hameed SA, Fayad AM. Catalytic, kinetic and thermodynamic properties of free and immobilized caseinase on mica glass-ceramics. Heliyon 2019; 5:e01674. [PMID: 31193050 PMCID: PMC6514538 DOI: 10.1016/j.heliyon.2019.e01674] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/20/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022] Open
Abstract
Bacillus megaterium 314 strain was able to utilize agricultural and industrial wastes for metallo-protease production. Orange peel and wheat bran were found as the most suitable carbon and nitrogen sources, respectively. Optimized production process enhanced the enzyme production by 5.1-folds. Glass and glass-ceramic with different particle sizes based on mica were used as inorganic carrier. Protease enzyme was immobilized by covalent bonding and physical adsorption methods on nanoparticle supports. Enzyme physically adsorbed on glass ceramic (particle size 0.71-1.0 mm) had the highest residual activity and the highest immobilization yield. Glass-ceramic was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Immobilized enzyme exhibited activation energy (E a ) and deactivation rate constant at 60 °C (k d ) about 1.29 and 1.46-times, respectively lower than free enzyme. Moreover, adsorbed enzyme had higher energy for denaturation (E d ), half-life (t 1/2 ), and decimal reduction time (D). The thermodynamic parameters of irreversible thermal denaturation for the protease enzyme indicate that immobilized enzyme had higher enthalpy (ΔH°), free energy (ΔG°), and entropy (ΔS°) than free one. There was a significant improvement in the maximum reaction velocity Vmax (2.5-fold), Michaelis constant Km (1.9-fold), and catalytic efficiency Vmax/Km (4.7-fold) values after immobilization indicating the efficiency and effectiveness of immobilization approach.
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Affiliation(s)
- Samia A. Ahmed
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Cairo, Egypt
| | - Shireen A.A. Saleh
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Cairo, Egypt
| | | | - Amira M. Fayad
- Glass Research Department, National Research Centre, Dokki, Cairo, Egypt
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Hao W, Tian P, Zheng M, Wang H, Xu C. Characteristics of proteolytic microorganisms and their effects on proteolysis in total mixed ration silages of soybean curd residue. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2019; 33:100-110. [PMID: 31010968 PMCID: PMC6946985 DOI: 10.5713/ajas.18.0933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 03/28/2019] [Indexed: 11/27/2022]
Abstract
Objective The objective of this study was to isolate proteolytic microorganisms and evaluate their effects on proteolysis in total mixed ration (TMR) silages of soybean curd residue. Methods TMRs were formulated with soybean curd residue, alfalfa or Leymus chinensis hay, corn meal, soybean meal, a vitamin-mineral supplement, and salt in a ratio of 25.0:40.0:30.0:4.0:0.5:0.5, respectively, on a basis of dry matter (DM). The microbial proteinases during ensiling were characterized, the dominate strains associated with proteolysis were identified, and their enzymatic characterization were evaluated in alfalfa (A-TMR) and Leymus chinensis (L-TMR) TMR silages containing soybean curd residue. Results Both A-TMR and L-TMR silages were well preserved, with low pH and high lactic acid concentrations. The aerobic bacteria and yeast counts in both TMR silages decreased to about 105 cfu g-1 FM (Fresh matter) and below the detection limit, respectively. The lactic acid bacteria count increased to 109 cfu g-1 FM. The total microbial proteinases activities reached their maximums during the early ensiling stage and then reduced in both TMR silages with fermentation prolonged. Metalloproteinase was the main proteinase when the total proteinases activities reached their maximums, and when ensiling terminated, metallo and serine proteinases played equally important parts in proteolysis in both TMR silages. Strains in the genera Curtobacterium and Paenibacillus were identified as the most dominant proteolytic bacteria in A-TMR and L-TMR, respectively, and both their proteinases were mainly with metalloproteinase characteristics. In the latter ensiling phase, Enterococcus faecium strains became the major sources of proteolytic enzymes in both TMR silages. Their proteinases were mainly of metallo and serine proteinases classes in this experiment. Conclusion Proteolytic aerobic bacteria were substituted by proteolytic lactic acid bacteria during ensiling, and the microbial serine and metallo proteinases in these strains played leading roles in proteolysis in TMR silages.
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Affiliation(s)
- Wei Hao
- Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.,State Key Laboratory of Feed Microbial Engineering, Beijing Da Bei Nong Science and Technology Group Co., Ltd., Beijing, China
| | - Pengjiao Tian
- Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Mingli Zheng
- Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Huili Wang
- Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Chuncheng Xu
- Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
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15
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Qiao Z, Han J, Feng H, Zheng H, Wu J, Gao C, Yang M, You C, Liu Z, Wu Z. Fermentation Products of Paenibacillus bovis sp. nov. BD3526 Alleviates the Symptoms of Type 2 Diabetes Mellitus in GK Rats. Front Microbiol 2019; 9:3292. [PMID: 30687277 PMCID: PMC6333654 DOI: 10.3389/fmicb.2018.03292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 12/18/2018] [Indexed: 01/04/2023] Open
Abstract
Gut microbiota is closely related to type 2 diabetes mellitus (T2DM). The gut microbiota of patients with T2DM is significantly different from that of healthy subjects in terms of bacterial composition and diversity. Here, we used the fermentation products of Paenibacillus bovis sp. nov. BD3526 to study the disease progression of T2DM in Goto-kakisaki (GK) rats. We found that the symptoms in GK rats fed the fermentation products of BD3526 were significantly improved. The 16S rRNA sequencing showed that the fermentation products of BD3526 had strong effects on the gut microbiota by increasing the content of Akkermansia. In addition, the interaction of the genus in the gut of the BD3526 group also significantly changed. Additional cytokine detection revealed that the fermentation products of BD3526 can reduce the inflammatory factors in the intestinal mucus of GK rats and thereby inhibit the inflammatory response and ameliorate the symptoms of T2DM.
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Affiliation(s)
- Zhenyi Qiao
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Jin Han
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Huafeng Feng
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Huajun Zheng
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, IRD, Fudan University, Shanghai, China
| | - Jiang Wu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Caixia Gao
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Meng Yang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Chunping You
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Zhengjun Wu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
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16
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Li L, Zheng Z, Zhao X, Wu F, Zhang J, Yang Z. Production, purification and characterization of a milk clotting enzyme from Bacillus methanolicus LB-1. Food Sci Biotechnol 2019; 28:1107-1116. [PMID: 31275710 DOI: 10.1007/s10068-018-0539-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 11/14/2018] [Accepted: 12/11/2018] [Indexed: 11/29/2022] Open
Abstract
Bacillus methanolicus LB-1 isolated from traditional rice wine was found to produce a milk clotting enzyme (MCE), and its fermentation conditions were optimized using response surface methodology. Then the MCE was produced by ethanol precipitation, and further chromatography separation resulted in a 10.46-fold purification with a 59.28% recovery. The MCA (milk clotting activity) of the purified MCE reached 597,310 ± 0.13 SU/g. The optimal temperature of the MCE was determined to be 50 °C and it was stable in the low temperature range of 40-45 °C. The MCE had an optimum pH of 6.5, and it was stable under neutral conditions. Calcium chloride at the concentration of 25 mM was found to be the most effective stimulus. The MCE was identified by LC-MS to be a putative protein (ID I3EB99) containing 759 amino acids with a molecular weight of 80.37 kDa and a pI of 9.23.
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Affiliation(s)
- Liu Li
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China
| | - Zhe Zheng
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China
| | - Xiao Zhao
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China
| | - Fengyu Wu
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China
| | - Jian Zhang
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China
| | - Zhennai Yang
- 1Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing, 100048 China.,2School of Food and Chemical Engineering, Beijing Technology and Business University, No. 11 Fu-Cheng Road, Hai-Dian District, Beijing, 100048 China
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17
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Kangwa M, Salgado JAG, Fernandez-Lahore HM. Identification and characterization of N-glycosylation site on a Mucor circinelloides aspartic protease expressed in Pichia pastoris: effect on secretion, activity and thermo-stability. AMB Express 2018; 8:157. [PMID: 30276572 PMCID: PMC6167268 DOI: 10.1186/s13568-018-0691-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/26/2018] [Indexed: 11/23/2022] Open
Abstract
Methylotrophic yeasts have widely been used as model organisms for understanding cellular functions and biochemical activities in lower eukaryotes. The gene encoding an aspartic protease (MCAP) from Mucor circinelloides DSM 2183 was cloned and expressed into Pichia pastoris using both the native M. circinelloides signal peptide (mcSP) and α-factor secretion signal from Saccharomyces cerevisiae (α-MF). When expressed in P. pastoris using α-MF and mcSP, MCAP was secreted into the culture medium at a concentration 200 mg L-1 (410 MCU mL-1) and 110 mg L-1 (249 MCU mL-1), respectively. The SDS-PAGE analysis of each culture shows that the protein was secreted in the media in two forms with molecular weights of approximately 33 and 37 kDa. Upon digestion using endoglycosidase H (Endo H), only one band at 33 kDa was observed, indicating that the protein might be glycosylated. One putative N-glycosylation site was found and a site-directed mutagenesis at position Asn331-Gln of the sequence produce only one form of the protein of 33 kDa, similar to that obtained when digested with Endo H. The optimum temperature and pH activity of the expressed MCAP was found to be at 60 °C and 3.6, respectively.
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Affiliation(s)
- Martin Kangwa
- Downstream Bioprocessing Laboratory, Department of Life Sciences & Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Jose Antonio Gama Salgado
- Downstream Bioprocessing Laboratory, Department of Life Sciences & Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Hector Marcelo Fernandez-Lahore
- Downstream Bioprocessing Laboratory, Department of Life Sciences & Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
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Li Z, Scott K, Otter D, Zhou P, Hemar Y. Effect of temperature and pH on the properties of skim milk gels made from a tamarillo (Cyphomandra betacea) coagulant and rennet. J Dairy Sci 2018; 101:4869-4878. [DOI: 10.3168/jds.2017-14050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/17/2018] [Indexed: 11/19/2022]
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19
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Effect of oxygen supply on milk-clotting activity expressed by Paenibacillus spp. strain BD3526. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Structural insight into a novel neutral metalloproteinase from Paenibacillus spp. BD3526: Implications for mechanisms of rapid inactivation and calcium-dependent stability. Int J Biol Macromol 2017; 95:1082-1090. [DOI: 10.1016/j.ijbiomac.2016.10.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/21/2016] [Accepted: 10/27/2016] [Indexed: 11/23/2022]
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Ahmed SA, Wehaidy HR, Ibrahim OA, Abd El Ghani S, El-Hofi MA. Novel milk-clotting enzyme from Bacillus stearothermophilus as a coagulant in UF-white soft cheese. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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