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Magwaza B, Amobonye A, Pillai S. Microbial β-glucosidases: Recent advances and applications. Biochimie 2024; 225:49-67. [PMID: 38734124 DOI: 10.1016/j.biochi.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/05/2024] [Accepted: 05/06/2024] [Indexed: 05/13/2024]
Abstract
The global β-glucosidase market is currently estimated at ∼400 million USD, and it is expected to double in the next six years; a trend that is mainly ascribed to the demand for the enzyme for biofuel processing. Microbial β-glucosidase, particularly, has thus garnered significant attention due to its ease of production, catalytic efficiency, and versatility, which have all facilitated its biotechnological potential across different industries. Hence, there are continued efforts to screen, produce, purify, characterize and evaluate the industrial applicability of β-glucosidase from actinomycetes, bacteria, fungi, and yeasts. With this rising demand for β-glucosidase, various cost-effective and efficient approaches are being explored to discover, redesign, and enhance their production and functional properties. Thus, this present review provides an up-to-date overview of advancements in the utilization of microbial β-glucosidases as "Emerging Green Tools" in 21st-century industries. In this regard, focus was placed on the use of recombinant technology, protein engineering, and immobilization techniques targeted at improving the industrial applicability of the enzyme. Furthermore, insights were given into the recent progress made in conventional β-glucosidase production, their industrial applications, as well as the current commercial status-with a focus on the patents.
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Affiliation(s)
- Buka Magwaza
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
| | - Ayodeji Amobonye
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P. O. Box 1334, Durban, 4000, South Africa.
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2
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Zhao Y, Zhang B, Gu H, Xu T, Chen Q, Li J, Zhou P, Guan X, He L, Liang Y, Zhang K, Liu S, Shi K. A mutant GH3 family β-glucosidase from Oenococcus oeni exhibits superior adaptation to wine stresses and potential for improving wine aroma and phenolic profiles. Food Microbiol 2024; 119:104458. [PMID: 38225057 DOI: 10.1016/j.fm.2023.104458] [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: 09/30/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/17/2024]
Abstract
In this study, we conducted a comprehensive investigation into a GH3 family β-glucosidase (BGL) from the wild-type strain of Oenococcus oeni and its mutated counterpart from the acid-tolerant mutant strain. Our analysis revealed the mutant BGL's remarkable capacity to adapt to wine-related stress conditions, including heightened tolerance to low pH, elevated ethanol concentrations, and metal ions. Additionally, the mutant BGL exhibited superior hydrolytic activity towards various substrates. Through de novo modeling, we identified specific amino acid mutations responsible for its resilience to low pH and high ethanol environments. In simulated wine conditions, the mutant BGL outperformed both wild-type and commercial BGLs, efficiently releasing terpene and phenolic aglycones from glycosides in wine grapes. These findings not only expand our understanding of O. oeni BGLs but also highlight their potential in enhancing wine production. The mutant BGL's enhanced adaptation to wine stress conditions opens promising avenue for improving wine quality and flavor.
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Affiliation(s)
- Yuzhu Zhao
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Biying Zhang
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Huawei Gu
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Tongxin Xu
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Qiling Chen
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Jin Li
- COFCO GreatWall Wine, Penglai, Shandong, China
| | | | - Xueqiang Guan
- Shandong Academy of Grape / Shandong Technology Innovation Center of Wine Grape and Wine, Jinan, Shandong, China
| | - Ling He
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanying Liang
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Kekun Zhang
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China
| | - Shuwen Liu
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China.
| | - Kan Shi
- College of Enology, College of Life Sciences, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Life Science Research Core Services, Northwest A&F University, Yangling, Shaanxi, China.
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3
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Yang W, Su Y, Wang R, Zhang H, Jing H, Meng J, Zhang G, Huang L, Guo L, Wang J, Gao W. Microbial production and applications of β-glucosidase-A review. Int J Biol Macromol 2024; 256:127915. [PMID: 37939774 DOI: 10.1016/j.ijbiomac.2023.127915] [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: 07/21/2023] [Revised: 10/03/2023] [Accepted: 11/04/2023] [Indexed: 11/10/2023]
Abstract
β-Glucosidase exists in all areas of living organisms, and microbial β-glucosidase has become the main source of its production because of its unique physicochemical properties and the advantages of high-yield production by fermentation. With the rise of the green circular economy, the production of enzymes through the fermentation of waste as the substrate has become a popular trend. Lignocellulosic biomass is an easily accessible and sustainable feedstock that exists in nature, and the production of biofuels from lignocellulosic biomass requires the involvement of β-glucosidase. This review proposes ways to improve β-glucosidase yield and catalytic efficiency. Optimization of growth conditions and purification strategies of enzymes can increase enzyme yield, and enzyme immobilization, genetic engineering, protein engineering, and whole-cell catalysis provide solutions to enhance the catalytic efficiency and activity of β-glucosidase. Besides, the diversified industrial applications, challenges and prospects of β-glucosidase are also described.
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Affiliation(s)
- Wenqi Yang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Yaowu Su
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Rubing Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Huanyu Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Hongyan Jing
- Traditional Chinese Medicine College, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jie Meng
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Guoqi Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lanping Guo
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs.
| | - Juan Wang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China.
| | - Wenyuan Gao
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China.
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da Rosa DF, Macedo AJ. The genus Anoxybacillus: an emerging and versatile source of valuable biotechnological products. Extremophiles 2023; 27:22. [PMID: 37584877 DOI: 10.1007/s00792-023-01305-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/14/2023] [Indexed: 08/17/2023]
Abstract
Thermophilic and alkaliphilic microorganisms are unique organisms that possess remarkable survival strategies, enabling them to thrive on a diverse range of substrates. Anoxybacillus, a genus of thermophilic and alkaliphilic bacteria, encompasses 24 species and 2 subspecies. In recent years, extensive research has unveiled the diverse array of thermostable enzymes within this relatively new genus, holding significant potential for industrial and environmental applications. The biomass of Anoxybacillus has demonstrated promising results in bioremediation techniques, while the recently discovered metabolites have exhibited potential in medicinal experiments. This review aims to provide an overview of the key experimental findings related to the biotechnological applications utilizing bacteria from the Anoxybacillus genus.
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Affiliation(s)
- Deisiane Fernanda da Rosa
- Laboratório de Diversidade Microbiana (LABDIM), Faculdade de Farmácia and Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, Brazil
| | - Alexandre José Macedo
- Laboratório de Diversidade Microbiana (LABDIM), Faculdade de Farmácia and Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, Brazil.
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Omeroglu MA, Baltaci MO, Adiguzel A. Anoxybacillus: an overview of a versatile genus with recent biotechnological applications. World J Microbiol Biotechnol 2023; 39:139. [PMID: 36995480 DOI: 10.1007/s11274-023-03583-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023]
Abstract
The Bacillaceae family members are considered to be a good source of microbial factories for biotechnological processes. In contrast to Bacillus and Geobacillus, Anoxybacillus, which would be thermophilic and spore-forming group of bacteria, is a relatively new genus firstly proposed in the year of 2000. The development of thermostable microbial enzymes, waste management and bioremediation processes would be a crucial parameter in the industrial sectors. There has been increasing interest in Anoxybacillus strains for biotechnological applications. Therefore, various Anoxybacillus strains isolated from different habitats have been explored and identified for biotechnological and industrial purposes such as enzyme production, bioremediation and biodegradation of toxic compounds. Certain strains have ability to produce exopolysaccharides possessing biological activities including antimicrobial, antioxidant and anticancer. This current review provides past and recent discoveries regarding Anoxybacillus strains and their potential biotechnological applications in enzyme industry, environmental processes and medicine.
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Affiliation(s)
- Mehmet Akif Omeroglu
- Faculty of Science, Department of Molecular Biology and Genetics, Ataturk University, Erzurum, 25400, Turkey
| | - Mustafa Ozkan Baltaci
- Faculty of Science, Department of Molecular Biology and Genetics, Ataturk University, Erzurum, 25400, Turkey.
| | - Ahmet Adiguzel
- Faculty of Science, Department of Molecular Biology and Genetics, Ataturk University, Erzurum, 25400, Turkey.
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Zhou HY, Chen Q, Zhang YF, Chen DD, Yi XN, Chen DS, Cheng XP, Li M, Wang HY, Chen KQ, Liu ZQ, Zheng YG. Improving the catalytic activity of β-glucosidase from Coniophora puteana via semi-rational design for efficient biomass cellulose degradation. Enzyme Microb Technol 2023; 164:110188. [PMID: 36584665 DOI: 10.1016/j.enzmictec.2022.110188] [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: 09/09/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
In order to improve the degradation activity of β-glucosidase (CpBgl) from Coniophora puteana, the structural modification was conducted. The enzyme activity of mutants CpBgl-Q20C and CpBgl-A240S was increased by 65.75% and 58.58%, respectively. These mutants exhibited maximum activity under the same conditions as wild-type CpBgl (65 ℃ and pH 5.0), slightly improved stabilities compared that of the wild-type, and remarkably enhanced activities in the presence of Mn2+ or Fe2+. The Vmax of CpBgl-Q20C and CpBgl-A240S was increased to 138.18 and 125.14 μmol/mg/min, respectively, from 81.34 μmol/mg/min of the wild-type, and the catalysis efficiency (kcat/Km) of CpBgl-Q20C (335.79 min-1/mM) and CpBgl-A240S (281.51 min-1/mM) was significantly improved compared with that of the wild-type (149.12 min-1/mM). When the mutant CpBgl-Q20C were used in the practical degradation of different biomasses, the glucose yields of filter paper, corncob residue, and fungi mycelia residue were increased by 17.68%, 25.10%, and 20.37%, respectively. The spatial locations of the mutation residues in the architecture of CpBgl and their unique roles in the enzyme-substrate binding and catalytic efficiency were probed in this work. These results laid a foundation for evolution of other glycoside hydrolases and the industrial bio-degradation of cellulosic biomass in nature.
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Affiliation(s)
- Hai-Yan Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Qi Chen
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yi-Feng Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Dou-Dou Chen
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Xiao-Nan Yi
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - De-Shui Chen
- Zhejiang Huakang Pharmaceutical Co., LTD., 18 Huagong Road, Huabu Town, Kaihua 324302, People's Republic of China
| | - Xin-Ping Cheng
- Zhejiang Huakang Pharmaceutical Co., LTD., 18 Huagong Road, Huabu Town, Kaihua 324302, People's Republic of China
| | - Mian Li
- Zhejiang Huakang Pharmaceutical Co., LTD., 18 Huagong Road, Huabu Town, Kaihua 324302, People's Republic of China
| | - Hong-Yan Wang
- Zhejiang Huakang Pharmaceutical Co., LTD., 18 Huagong Road, Huabu Town, Kaihua 324302, People's Republic of China
| | - Kai-Qian Chen
- Zhejiang Huakang Pharmaceutical Co., LTD., 18 Huagong Road, Huabu Town, Kaihua 324302, People's Republic of China
| | - Zhi-Qiang Liu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China.
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China; The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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Characterization of a New Glucose-Tolerant GH1 β-Glycosidase from Aspergillus fumigatus with Transglycosylation Activity. Int J Mol Sci 2023; 24:ijms24054489. [PMID: 36901919 PMCID: PMC10003650 DOI: 10.3390/ijms24054489] [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: 12/23/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023] Open
Abstract
Concern over environmental impacts has spurred many efforts to replace fossil fuels with biofuels such as ethanol. However, for this to be possible, it is necessary to invest in other production technologies, such as second generation (2G) ethanol, in order to raise the levels of this product and meet the growing demand. Currently, this type of production is not yet economically feasible, due to the high costs of the enzyme cocktails used in saccharification stage of lignocellulosic biomass. In order to optimize these cocktails, the search for enzymes with superior activities has been the goal of several research groups. For this end, we have characterized the new β-glycosidase AfBgl1.3 from A. fumigatus after expression and purification in Pichia pastoris X-33. Structural analysis by circular dichroism revealed that increasing temperature destructured the enzyme; the apparent Tm value was 48.5 °C. The percentages of α-helix (36.3%) and β-sheet (12.4%) secondary structures at 25 °C were predicted. Biochemical characterization suggested that the optimal conditions for AfBgl1.3 were pH 6.0 and temperature of 40 °C. At 30 and 40 °C, the enzyme was stable and retained about 90% and 50% of its activity, respectively, after pre-incubation for 24 h. In addition, the enzyme was highly stable at pH between 5 and 8, retaining over 65% of its activity after pre-incubation for 48 h. AfBgl1.3 co-stimulation with 50-250 mM glucose enhanced its specific activity by 1.4-fold and revealed its high tolerance to glucose (IC50 = 2042 mM). The enzyme was active toward the substrates salicin (495.0 ± 49.0 U mg-1), pNPG (340.5 ± 18.6 U mg-1), cellobiose (89.3 ± 5.1 U mg-1), and lactose (45.1 ± 0.5 U mg-1), so it had broad specificity. The Vmax values were 656.0 ± 17.5, 706.5 ± 23.8, and 132.6 ± 7.1 U mg-1 toward p-nitrophenyl-β-D-glucopyranoside (pNPG), D-(-)-salicin, and cellobiose, respectively. AfBgl1.3 displayed transglycosylation activity, forming cellotriose from cellobiose. The addition of AfBgl1.3 as a supplement at 0.9 FPU/g of cocktail Celluclast® 1.5L increased carboxymethyl cellulose (CMC) conversion to reducing sugars (g L-1) by about 26% after 12 h. Moreover, AfBgl1.3 acted synergistically with other Aspergillus fumigatus cellulases already characterized by our research group-CMC and sugarcane delignified bagasse were degraded, releasing more reducing sugars compared to the control. These results are important in the search for new cellulases and in the optimization of enzyme cocktails for saccharification.
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Sun N, Liu X, Wang X, Shi H, Zhang H, Li L, Na W, Guan Q. Optimization of fermentation conditions for the production of acidophilic β-glucosidase by Trichoderma reesei S12 from mangrove soil. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2021.1984989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Nan Sun
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Xiaoxuan Liu
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Xuemei Wang
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Huiyu Shi
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Haiwen Zhang
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Lianbin Li
- Lab of Animal Nutrition, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Wei Na
- Lab of Animal Genetics, Reproduction & Breeding, College of Animal Science and Technology, Hainan University, Haikou, Hainan, P.R.China
| | - Qingfeng Guan
- Lab of Microorganism Resource and Utilization Research, School of Life Sciences, Hainan University, Haikou, Hainan, P.R.China
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Vázquez-Ortega PG, López-Miranda J, Rojas-Contreras JA, Ilina A, Soto-Cruz NO, Páez-Lerma JB. Expression of a β-glucosidase from Trichoderma reesei in Escherichia coli using a synthetic optimized gene and stability improvements by immobilization using magnetite nano-support. Protein Expr Purif 2021; 190:106009. [PMID: 34742914 DOI: 10.1016/j.pep.2021.106009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 12/14/2022]
Abstract
The enzymatic conversion of lignocellulosic biomass to fermentable sugars is determined by the enzymatic activity of cellulases; consequently, improving enzymatic activity has attracted great interest in the scientific community. Cocktails of commercial cellulase often have low β-glucosidase content, leading to the accumulation of cellobiose. This accumulation inhibits the activity of the cellulolytic complex and can be used to determine the enzymatic efficiency of commercial cellulase cocktails. Here, a novel codon optimized β-glucosidase gene (B-glusy) from Trichoderma reesei QM6a was cloned and expressed in three strains of Escherichia coli (E. coli). The synthetic sequence containing an open reading frame (ORF) of 1491 bp was used to encode a polypeptide of 497 amino acid residues. The β-glucosidase recombinant protein that was expressed (57 kDa of molecular weight) was purified by Ni agarose affinity chromatography and visualized by SDS-PAGE. The recombinant protein was better expressed in E. coli BL21 (DE3), and its enzymatic activity was higher at neutral pH and 30 °C (22.4 U/mg). Subsequently, the β-glucosidase was immobilized using magnetite nano-support, after which it maintained >65% of its enzymatic activity from pH 6 to 10, and was more stable than the free enzyme above 40 °C. The maximum immobilization yield had enzyme activity of 97.2%. In conclusion, β-glucosidase is efficiently expressed in the microbial strain E. coli BL21 (DE3) grown in a simplified culture medium.
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Affiliation(s)
- Perla Guadalupe Vázquez-Ortega
- Tecnológico Nacional de México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, CP 34080, Durango, Dgo., Mexico
| | - Javier López-Miranda
- Tecnológico Nacional de México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, CP 34080, Durango, Dgo., Mexico.
| | - Juan Antonio Rojas-Contreras
- Tecnológico Nacional de México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, CP 34080, Durango, Dgo., Mexico
| | - Anna Ilina
- Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza e Ing. José Cárdenas V. Col. República Oriente, CP 25000, Saltillo, Coahuila, Mexico
| | - Nicolás Oscar Soto-Cruz
- Tecnológico Nacional de México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, CP 34080, Durango, Dgo., Mexico
| | - Jesús Bernardo Páez-Lerma
- Tecnológico Nacional de México/Instituto Tecnológico de Durango, Blvd. Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, CP 34080, Durango, Dgo., Mexico
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10
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Jiang Z, Long L, Liang M, Li H, Chen Y, Zheng M, Ni H, Li Q, Zhu Y. Characterization of a glucose-stimulated β-glucosidase from Microbulbifer sp. ALW1. Microbiol Res 2021; 251:126840. [PMID: 34375805 DOI: 10.1016/j.micres.2021.126840] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 05/18/2021] [Accepted: 08/02/2021] [Indexed: 11/27/2022]
Abstract
Glucose-tolerant and/or glucose-stimulated β-glucosidase is of great interest for its industrial utilization in enzymatic digestion of lignocellulosic biomass for biofuel production. In this study, a new gene of β-glucosidase MaGlu1A was cloned from an alginate-degrading marine bacterium Microbulbifer sp. ALW1. The gene of MaGlu1A encoded a 472-amino acid protein classified into the glycosyl hydrolase family 1 (GH1). The recombinant β-glucosidase was overexpressed and purified from Escherichia coli with a molecular mass of 65.0 kDa. Structure analysis illustrated the catalytic acid/base residue Glu186 and nucleophilic residue Glu370 in the enzyme. MaGlu1A displayed optimal activity at 40 °C and pH 4.5, respectively. It had substrate preference to the aryl-β-glycosidic bonds with glucose, fucose, and galactose moieties, in addition to cellobiose. MaGlu1A demonstrated strong stimulation to the supplemental glucose. Site-directed mutagenesis suggested an essential role of Asn242 in glucose stimulation. The enzymatic characterization of MaGlu1A provides general information about its catalytic properties facilitating its practical applications.
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Affiliation(s)
- Zedong Jiang
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China
| | - Liufei Long
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China
| | - Meifang Liang
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China
| | - Hebin Li
- Xiamen Medical College, Xiamen, 361008, China
| | - Yanhong Chen
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China
| | - Mingjing Zheng
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China
| | - Hui Ni
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China
| | - Qingbiao Li
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China
| | - Yanbing Zhu
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021, China; Research Center of Food Biotechnology of Xiamen City, Xiamen, 361021, China.
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