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Wang H, Zhu B. Directed preparation of algal oligosaccharides with specific structures by algal polysaccharide degrading enzymes. Int J Biol Macromol 2024; 277:134093. [PMID: 39053825 DOI: 10.1016/j.ijbiomac.2024.134093] [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: 04/07/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
Seaweed polysaccharides have a wide range of sources and rich content, with various biological activities such as anti-inflammatory, anti-tumor, anticoagulant, and blood pressure lowering. They can be applied in fields such as food, agriculture, and medicine. However, the poor solubility of macromolecular seaweed polysaccharides limits their further application. Reports have shown that some biological activities of seaweed oligosaccharides are more extensive and superior to that of seaweed polysaccharides. Therefore, reducing the degree of polymerization of polysaccharides will be the key to the high value utilization of seaweed polysaccharide resources. There are three main methods for degrading algal polysaccharides into algal oligosaccharides, physical, chemical and enzymatic degradation. Among them, enzymatic degradation has been a hot research topic in recent years. Various types of algal polysaccharide hydrolases and related glycosidases are powerful tools for the preparation of algal oligosaccharides, including α-agarases, β-agaroses, α-neoagarose hydrolases and β-galactosidases that are related to agar, κ-carrageenases, ι-carrageenases and λ-carrageenases that are related to carrageenan, β-porphyranases that are related to porphyran, funoran hydrolases that are related to funoran, alginate lyases that are related to alginate and ulvan lyases related to ulvan. This paper describes the bioactivities of agar oligosaccharide, carrageenan oligosaccharide, porphyran oligosaccharide, funoran oligosaccharide, alginate oligosaccharide and ulvan oligosaccharide and provides a detailed review of the progress of research on the enzymatic preparation of these six oligosaccharides. At the same time, the problems and challenges faced are presented to guide and improve the preparation and application of algal oligosaccharides in the future.
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Affiliation(s)
- Hui Wang
- College of Food Science and Light Industry, Nanjing Tech University, 211086, China
| | - Benwei Zhu
- College of Food Science and Light Industry, Nanjing Tech University, 211086, China.
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2
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Fang X, Li S, Kang W, Lin C, Wang J, Ke Q, Wang C, Wang Q, Chen Q. Enhanced algin oligosaccharide production through selective breeding and optimization of growth and degradation conditions in Cobetia sp. cqz5-12-M1. Sci Rep 2024; 14:19550. [PMID: 39174820 PMCID: PMC11341896 DOI: 10.1038/s41598-024-70472-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 08/16/2024] [Indexed: 08/24/2024] Open
Abstract
Algin oligosaccharides have been applied in diverse industries and could be innovative synthesized by alginate-degrading bacteria. For enhance the alginate degradation efficiency to produce more algin oligosaccharides, a mutant strain (Cobetia sp. cqz5-12-M1) was obtained through the complex mutagenesis using UV and the alkylating agent 1-methyl-3-nitro-1-nitrosoguanidine. The enzyme activity of the fermentation supernatant of mutant exhibited a significant 38.09% (53.98 ± 0.69 U/mL) increase, and its optimal growth conditions were determined as: 5 g/L sodium alginate, 5 g/L yeast powder, 30 g/L NaCl, 2 g/L K2HPO4, 2 g/L KH2PO4, 1 g/L MgSO4•7H2O, 0.01 g/L FeSO4•7H2O, pH 6.5, and 34 ℃. Moreover, its optimal degradation conditions were identified as: 5 g/L sodium alginate, 5 g/L yeast powder, 30 g/L NaCl, 2 g/L K2HPO4, 2 g/L KH2PO4, 1 g/L MgSO4•7H2O, 0.01 g/L FeSO4•7H2O, pH 6.5, 31 ℃ and 72 h, yielding an enzyme activity of 120.98 ± 1.40 U/mL in the fermentation supernatant. Conclusive experiments on reagent tolerance revealed the growth of the mutant strain was significantly inhibited by 3% hydrogen peroxide, 5% carbolic acid, and 10 mg/mL gatifloxacin. Additionally, the alginate degradation capacity of mutant strain was highly significantly inhibited by 75% ethanol and all tested antibiotics.
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Affiliation(s)
- Xinru Fang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Shuang Li
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Weixiao Kang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Chaoyou Lin
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Jiangmei Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Qiang Ke
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Chuanhua Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Qi Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Qiongzhen Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China.
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Yun S, Huang J, Zhang M, Wang X, Wang X, Zhou Y. Preliminary identification and semi-quantitative characterization of a multi-faceted high-stability alginate lyase from marine microbe Seonamhaeicola algicola with anti-biofilm effect on Pseudomonas aeruginosa. Enzyme Microb Technol 2024; 175:110408. [PMID: 38309052 DOI: 10.1016/j.enzmictec.2024.110408] [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: 10/27/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
Alginate lyases with unique characteristics for degrading alginate into size-defined oligosaccharide fractions, were considered as the potential agents for disrupting Pseudomonas aeruginosa biofilms. In our study, a novel endolytic PL-7 alginate lyase, named AlyG2, was cloned and expressed through Escherichia coli. This enzyme exhibited excellent properties: it maintained more than 85% activity at low temperatures of 4 °C and high temperatures of 70 °C. After 1 h of incubation at 4 °C, it still retained over 95% activity, demonstrating the ability to withstand low temperature. The acid-base and salt tolerance properties shown it preserves more than 50% activity in the pH range of 5.0 to 11.0 and in a high salt environment at 3000 mM NacCl, indicating its high stability in several aspects. More importantly, AlyG2 in our research was revealed to be effective at removing mature biofilms and inhibiting biofilm formation produced by Pseudomonas aeruginosa, and the inhibition and disruption rates were 47.25 ± 4.52% and 26.5 ± 6.72%, respectively. Additionally, the enzyme AlyG2 promoted biofilm disruption in combination with antibiotics, particularly manifesting the synergistic effect with erythromycin (FIC=0.5). In all, these results offered that AlyG2 with unique characteristics may be an effective technique for the clearance or disruption of biofilm produced by P. aeruginosa.
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Affiliation(s)
- Shuaiting Yun
- Marine College, Shandong University, Weihai 264209, China
| | - Jinping Huang
- Marine College, Shandong University, Weihai 264209, China
| | - Mingjing Zhang
- Marine College, Shandong University, Weihai 264209, China
| | - Xueting Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Xiaochen Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Yanxia Zhou
- Marine College, Shandong University, Weihai 264209, China.
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Gu X, Fu L, Wang Z, Cao Z, Zhao L, Seswita-Zilda D, Zhang A, Zhang Q, Li J. A Novel Bifunctional Alginate Lyase and Antioxidant Activity of the Enzymatic Hydrolysates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4116-4126. [PMID: 38372665 DOI: 10.1021/acs.jafc.3c08638] [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: 02/20/2024]
Abstract
Alginate lyase Aly448, a potential new member of the polysaccharide lyase (PL) 7 family, which was cloned and identified from the macroalgae-associated bacterial metagenomic library, showed bifunctionality. The molecular docking results revealed that Aly448 has two completely different binding sites for alginate (polyMG), poly-α-l-guluronic acid (polyG), and poly-β-d-mannuronic acid (polyM) substrates, respectively, which might be the molecular basis for the enzyme's bifunctionality. Truncational results confirmed that predicted key residues affected the bifunctionality of Aly448, but did not wholly explain. Besides, Aly448 presented excellent biochemical characteristics, such as higher thermal stability and pH tolerance. Degradation of polyMG, polyM, and polyG substrates by Aly448 produced tetrasaccharide (DP4), disaccharide (DP2), and galactose (DP1), which exhibited excellent antioxidant activity. These findings provide novel insights into the substrate recognition mechanism of bifunctional alginate lyases and pave a new path for the exploitation of natural antioxidant agents.
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Affiliation(s)
- Xiaoqian Gu
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Liping Fu
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Zhiyan Wang
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Zhe Cao
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Luying Zhao
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Dewi Seswita-Zilda
- Research Center for Deep Sea, Earth Sciences and Maritime Research Organization, National Research and Innovation Agency (BRIN), Jl. Pasir Putih Raya, Pademangan, North Jakarta City, Jakarta 14430, Indonesia
| | - Ao Zhang
- Chemical Engineering Institute, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qian Zhang
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jiang Li
- Key Lab of Ecological Environment Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
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Jiang J, Wang Y, Jiang Z, Yan Q, Yang S. High-level production of a novel alginate lyase (FsAly7) from Flammeovirga sp. for efficient production of low viscosity soluble dietary fiber from sodium alginate. Carbohydr Polym 2024; 326:121605. [PMID: 38142093 DOI: 10.1016/j.carbpol.2023.121605] [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: 09/07/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 12/25/2023]
Abstract
Sodium alginate is one of the most abundant sustainable gum source for dietary fiber production. However, the preparation efficiencies of low viscosity soluble dietary fiber from sodium alginate remain low. Here, a novel alginate lyase gene (FsAly7) from Flammeovirga sp. was identified and high-level expressed in Pichia pastoris for low viscosity soluble dietary fiber production. The highest enzyme production of 3050 U mL-1 was achieved, which is by far the highest yield ever reported. FsAly7 was used for low viscosity soluble dietary fiber production from sodium alginate, and the highest degradation rate of 85.5 % was achieved under a high substrate content of 20 % (w/v). The molecular weight of obtained soluble dietary fiber converged to 10.75 kDa. FsAly7 catalyzed the cleavage of glycosidic bonds in alginate chains with formation of unsaturated non-reducing ends simultaneously in the degradation process, thus altered the chemical structures of hydrolysates. The soluble dietary fiber exhibited excellent properties, including low viscosity, high oil adsorption capacity activity (2.20 ± 0.03 g g-1) and high emulsifying activity (60.05 ± 2.96 mL/100 mL). This investigation may provide a novel alginate lyase catalyst as well as a solution for the efficient production of low viscosity soluble dietary fiber from sodium alginate.
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Affiliation(s)
- Jun Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Yue Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Zhengqiang Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Qiaojuan Yan
- Key Laboratory of Food Bioengineering (China National Light Industry), College of Engineering, China Agricultural University, No.17 Qinghua East Road, Haidian District, Beijing 100083, China
| | - Shaoqing Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, No.17 Qinghua East Road, Haidian District, Beijing 100083, China.
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Zheng F, Basit A, Wang J, Zhuang H, Chen J, Zhang J. Characterization of a novel acidophilic, ethanol tolerant and halophilic GH12 β-1,4-endoglucanase from Trichoderma asperellum ND-1 and its synergistic hydrolysis of lignocellulosic biomass. Int J Biol Macromol 2024; 254:127650. [PMID: 38287580 DOI: 10.1016/j.ijbiomac.2023.127650] [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: 03/30/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 01/31/2024]
Abstract
A novel acidophilic GH5 β-1,4-endoglucanase (TaCel12) from Trichoderma asperellum ND-1 was efficiently expressed in Pichia pastoris (a 1.5-fold increase). Deglycosylated TaCel12 migrated as a single band (26.5 kDa) in SDS-PAGE. TaCel12 was acidophilic with a pH optimum of 4.0 and displayed great pH stability (>80 % activity over pH 3.0-5.0). TaCel12 exhibited considerable activity towards sodium carboxymethyl cellulose and sodium alginate with Vmax values of 197.97 μmol/min/mg and 119.06 μmol/min/mg, respectively. Moreover, TaCel12 maintained >80 % activity in the presence of 20 % ethanol and 4.28 M NaCl. Additionally, Mn2+, Pb2+ and Cu2+ negatively affected TaCel12 activity, while the presence of 5 mM Co2+ significantly increased the enzyme activity. Analysis of action mode revealed that TaCel12 required at least four glucose (cellotetraose) residues for hydrolysis to yield cellobiose and cellotriose. Site-directed mutagenesis results suggested that Glu133 and Glu217 of TaCel12 are crucial catalytic residues, with Asp116 displaying an auxiliary function. Production of soluble sugars from lignocellulose is a crucial step in bioethanol development, and it is noteworthy that TaCel12 could synergistically yield fermentable sugars from corn stover and bagasse, respectively. Thus TaCel12 with excellent properties will be considered a potential biocatalyst for applications in various industries, especially for lignocellulosic biomass conversion.
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Affiliation(s)
- Fengzhen Zheng
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310021, China.
| | - Abdul Basit
- Department of Microbiology, University of Jhang, Jhang 35200, Pakistan
| | - Jiaqiang Wang
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310021, China
| | - Huan Zhuang
- Department of ENT and Head & Neck Surgery, The Children's Hospital Zhejiang University School of Medicine, Zhejiang, Hangzhou 310051, China
| | - Jun Chen
- Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310021, China
| | - Jianfen Zhang
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310021, China
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7
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Liang Q, Huang Y, Liu Z, Xiao M, Ren X, Liu T, Li H, Yu D, Wang Y, Zhu C. A Recombinant Alginate Lyase Algt1 with Potential in Preparing Alginate Oligosaccharides at High-Concentration Substrate. Foods 2023; 12:4039. [PMID: 37959158 PMCID: PMC10649253 DOI: 10.3390/foods12214039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 09/30/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Abstract
Alginate lyase has been demonstrated as an efficient tool in the preparation of functional oligosaccharides (AOS) from alginate. The high viscosity resulting from the high concentration of alginate poses a limiting factor affecting enzymatic hydrolysis, particularly in the preparation of the fragments with low degrees of polymerization (DP). Herein, a PL7 family alginate lyase Algt from Microbulbifer thermotolerans DSM 19189 was developed and expressed in Pichia pastoris. The recombinant alginate lyase Algt1 was constructed by adopting the structural domain truncation strategy, and the enzymatic activity towards the alginate was improved from 53.9 U/mg to 212.86 U/mg compared to Algt. Algt1 was stable when incubated at 40 °C for 90 min, remaining with approximately 80.9% of initial activity. The analyses of thin-layer chromatography (TLC), fast protein liquid chromatography (FPLC), and electrospray ionization mass spectrometry (ESI-MS) demonstrated that the DP of the minimum identifiable substrate of Algt1 was five, and the main hydrolysis products were AOS with DP 1-4. Additionally, 1-L the enzymatic hydrolysis system demonstrated that Algt1 exhibited an effective degradation at alginate concentrations of up to 20%, with the resulting products of monosaccharides (14.02%), disaccharides (21.10%), trisaccharides (37.08%), and tetrasaccharides (27.80%). These superior properties of Algt1 make it possible to efficiently generate functional AOS with low DP in industrial processing.
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Affiliation(s)
- Qingping Liang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Youtao Huang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Zhemin Liu
- Fundamental Science R&D Center of Vazyme Biotech Co., Ltd., Nanjing 210000, China;
| | - Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Xinmiao Ren
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
| | - Tianhong Liu
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Hongyan Li
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Dongxing Yu
- SOHAO FD-TECH Co., Ltd., Qingdao 266700, China;
| | - Ying Wang
- Marine Science Research Institute of Shandong Province, Qingdao 266003, China; (T.L.); (H.L.)
- Municipal Engineering Research Center of Aquatic Biological Quality Evaluation and Application, Qingdao 266104, China
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; (Q.L.); (Y.H.); (M.X.); (X.R.)
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Wang HY, Chen ZF, Zheng ZH, Lei HW, Cong HH, Zhou HX. A Novel Cold-Adapted and High-Alkaline Alginate Lyase with Potential for Alginate Oligosaccharides Preparation. Molecules 2023; 28:6190. [PMID: 37687019 PMCID: PMC10488352 DOI: 10.3390/molecules28176190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 09/10/2023] Open
Abstract
Alginate oligosaccharides (AOs) prepared through enzymatic reaction by diverse alginate lyases under relatively controllable and moderate conditions possess versatile biological activities. But widely used commercial alginate lyases are still rather rare due to their poor properties (e.g., lower activity, worse thermostability, ion tolerance, etc.). In this work, the alginate lyase Alyw208, derived from Vibrio sp. W2, was expressed in Yarrowia lipolytica of food grade and characterized in order to obtain an enzyme with excellent properties adapted to industrial requirements. Alyw208 classified into the polysaccharide lyase (PL) 7 family showed maximum activity at 35 °C and pH 10.0, indicating its cold-adapted and high-alkaline properties. Furthermore, Alyw208 preserved over 70% of the relative activity within the range of 10-55 °C, with a broader temperature range for the activity compared to other alginate-degrading enzymes with cold adaptation. Recombinant Alyw208 was significantly activated with 1.5 M NaCl to around 2.1 times relative activity. In addition, the endolytic Alyw208 was polyG-preferred, but identified as a bifunctional alginate lyase that could degrade both polyM and polyG effectively, releasing AOs with degrees of polymerization (DPs) of 2-6 and alginate monomers as the final products (that is, DPs 1-6). Alyw208 has been suggested with favorable properties to be a potent candidate for biotechnological and industrial applications.
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Affiliation(s)
- Hai-Ying Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (H.-Y.W.); (Z.-F.C.); (Z.-H.Z.); (H.-W.L.)
| | - Zhi-Fang Chen
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (H.-Y.W.); (Z.-F.C.); (Z.-H.Z.); (H.-W.L.)
- Shandong Peanut Research Institute, Qingdao 266100, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhi-Hong Zheng
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (H.-Y.W.); (Z.-F.C.); (Z.-H.Z.); (H.-W.L.)
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hui-Wen Lei
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (H.-Y.W.); (Z.-F.C.); (Z.-H.Z.); (H.-W.L.)
- College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Hai-Hua Cong
- College of Food Science and Technology, Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China
| | - Hai-Xiang Zhou
- Shandong Peanut Research Institute, Qingdao 266100, China
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Li L, Zhu B, Yao Z, Jiang J. Directed preparation, structure-activity relationship and applications of alginate oligosaccharides with specific structures: A systematic review. Food Res Int 2023; 170:112990. [PMID: 37316063 DOI: 10.1016/j.foodres.2023.112990] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023]
Abstract
The alginate oligosaccharides (AOS) possess versatile activities (such as antioxidant, anti-inflammatory, antitumor, and immune-regulatory activities) and have been the research topic in marine bioresource utilization fields. The degree of polymerization (DP) and the β-D-mannuronic acid (M)/α-L-guluronic acid (G)-units ratio strongly affect the functionality of AOS. Therefore, directed preparation of AOS with specific structures is essential for expanding the applications of alginate polysaccharides and has been the research topic in the marine bioresource field. Alginate lyases could efficiently degrade alginate and specifically produce AOS with specific structures. Therefore, enzymatic preparation of AOS with specific structures has drawn increasing attention. Herein, we systematically summarized the current research progress on the structure-function relation of AOS and focuses on the application of the enzymatic properties of alginate lyase to the specific preparation of various types of AOS. At the same time, current challenges and opportunities for AOS applications are presented to guide and improve the preparation and application of AOS in the future.
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Affiliation(s)
- Li Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Benwei Zhu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
| | - Zhong Yao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Jinju Jiang
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao 266400, China
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Jo H, Park MS, Lim Y, Kang I, Cho JC. Ten Novel Species Belonging to the Genus Flavobacterium, Isolated from Freshwater Environments: F. praedii sp. nov., F. marginilacus sp. nov., F. aestivum sp. nov., F. flavigenum sp. nov., F. luteolum sp. nov., F. gelatinilyticum sp. nov., F. aquiphilum sp. nov., F. limnophilum sp. nov., F. lacustre sp. nov., and F. eburneipallidum sp. nov. J Microbiol 2023:10.1007/s12275-023-00054-4. [PMID: 37219690 DOI: 10.1007/s12275-023-00054-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/24/2023]
Abstract
Eleven bacterial strains were isolated from freshwater environments and identified as Flavobacterium based on 16S rRNA gene sequence analyses. Complete genome sequences of the 11 strains ranged from 3.45 to 5.83 Mb with G + C contents of 33.41-37.31%. The average nucleotide identity (ANI) values showed that strains IMCC34515T and IMCC34518 belonged to the same species, while the other nine strains represented each separate species. The ANI values between the strains and their closest Flavobacterium species exhibited ≤ 91.76%, indicating they represent each novel species. All strains had similar characteristics such as being Gram-stain-negative, rod-shaped, and contained iso-C15:0 as the predominant fatty acid, menaquinone-6 as the respiratory quinone, and phosphatidylethanolamine and aminolipids as major polar lipids. Genomic, phylogenetic, and phenotypic characterization confirmed that the 11 strains were distinct from previously recognized Flavobacterium species. Therefore, Flavobacterium praedii sp. nov. (IMCC34515T = KACC 22282 T = NBRC 114937 T), Flavobacterium marginilacus sp. nov. (IMCC34673T = KACC 22284 T = NBRC 114940 T), Flavobacterium aestivum sp. nov. (IMCC34774T = KACC 22285 T = NBRC 114941 T), Flavobacterium flavigenum sp. nov. (IMCC34775T = KACC 22286 T = NBRC 114942 T), Flavobacterium luteolum sp. nov. (IMCC34776T = KACC 22287 T = NBRC 114943 T), Flavobacterium gelatinilyticum sp. nov. (IMCC34777T = KACC 22288 T = NBRC 114944 T), Flavobacterium aquiphilum sp. nov. (IMCC34779T = KACC 22289 T = NBRC 114945 T), Flavobacterium limnophilum sp. nov. (IMCC36791T = KACC 22290 T = NBRC 114947 T), Flavobacterium lacustre sp. nov. (IMCC36792T = KACC 22291 T = NBRC 114948 T), and Flavobacterium eburneipallidum sp. nov. (IMCC36793T = KACC 22292 T = NBRC 114949 T) are proposed as novel species.
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Affiliation(s)
- Hyunyoung Jo
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | - Miri S Park
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | - Yeonjung Lim
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | - Ilnam Kang
- Center for Molecular and Cell Biology, Department of Biological Sciences, Inha University, Incheon, 22212, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea.
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11
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Wang X, Xu W, Dai Q, Liu X, Guang C, Zhang W, Mu W. Characterization of a thermostable PL-31 family alginate lyase from Paenibacillus ehimensis and its application for alginate oligosaccharides bioproduction. Enzyme Microb Technol 2023; 166:110221. [PMID: 36906979 DOI: 10.1016/j.enzmictec.2023.110221] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Currently, people pay more attention to marine sugars, because of their unique physiological effects. Alginate oligosaccharides (AOS) are the degradation products of alginate and have been used in food, cosmetic, and medicine fields. AOS display good physical characteristics (low relative molecular weight, good solubility, high safety, and high stability) and excellent physiological functions (immunomodulatory, antioxidant, antidiabetic, and prebiotic activities). Alginate lyase plays a key role in the AOS bioproduction. In this study, a novel PL-31 family alginate lyase from Paenibacillus ehimensis (paeh-aly) was identified and characterized. It was extracellularly secreted in E. coli and exhibited a preference for the substrate poly β-D-mannuronate. Using sodium alginate as the substrate, it showed the maximum catalytic activity (125.7 U/mg) at pH 7.5 and 55 °C with 50 mM NaCl. Compared with other alginate lyases, paeh-aly exhibited good stability. About 86.6% and 61.0% residual activity could be maintained after 5 h incubation at 50 and 55 °C respectively, and its Tm value was 61.5 °C. The degradation products were AOS with DP 2-4. Paeh-aly demonstrated strong promise for AOS industrial production because of its excellent thermostability and efficiency.
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Affiliation(s)
- Xinxiu Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Shandong Haizhibao Ocean Technology Co., Ltd, Weihai, Shandong 264333, China
| | - Quanyu Dai
- China Rural Technology Development Center, Beijing 100045, China
| | - Xiaoyong Liu
- Shandong Haizhibao Ocean Technology Co., Ltd, Weihai, Shandong 264333, China
| | - Cuie Guang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Shandong Haizhibao Ocean Technology Co., Ltd, Weihai, Shandong 264333, China.
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
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12
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Chen C, Cao S, Zhu B, Jiang L, Yao Z. Biochemical characterization and elucidation the degradation pattern of a new cold-adapted and Ca2+ activated alginate lyase for efficient preparation of alginate oligosaccharides. Enzyme Microb Technol 2023; 162:110146. [DOI: 10.1016/j.enzmictec.2022.110146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022]
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13
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Zhang MJ, Yun ST, Wang XC, Peng LY, Dou C, Zhou YX. Insights into the Influence of Signal Peptide on the Enzymatic Properties of Alginate Lyase AlyI1 with Removal Effect on Pseudomonas aeruginosa Biofilm. Mar Drugs 2022; 20:md20120753. [PMID: 36547900 PMCID: PMC9787728 DOI: 10.3390/md20120753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Most reports on signal peptides focus on their ability to affect the normal folding of proteins, thereby affecting their secreted expression, while few studies on its effects on enzymatic properties were published. Therefore, biochemical characterization and comparison of alginate lyase rALYI1/rALYI1-1 (rALYI1: without signal peptides; rALYI1-1:with signal peptides) were conducted in our study, and the results showed that the signal peptide affected the biochemical properties, especially in temperature and pH. rALYI1 (32.15 kDa) belonging to polysaccharide lyase family 7 was cloned from sea-cucumber-gut bacterium Tamlana sp. I1. The optimum temperature of both rALYI1 and rALYI1-1 was 40 °C, but the former had a wider optimum temperature range and better thermal stability. The optimum pH of rALYI1 and rALYI1-1 were 7.6 and 8.6, respectively. The former was more stable and acid resistant. Noticeably, rALYI1 was a salt-activated enzyme and displayed remarkable salt tolerance. Alginate, an essential polysaccharide in algae and Pseudomonas aeruginosa biofilms, is composed of α-L-guluronate and β-D-mannuronate. It is also found in our study that rALYI1 is also effective in removing mature biofilms compared with controls. In conclusion, the signal peptide affects several biochemical properties of the enzyme, and alginate lyase rALYI1 may be an effective method for inhibiting biofilm formation of Pseudomonas aeruginosa.
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Affiliation(s)
| | - Shuai-Ting Yun
- Marine College, Shandong University, Weihai 264209, China
| | - Xiao-Chen Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Li-Yang Peng
- Marine College, Shandong University, Weihai 264209, China
| | - Chuan Dou
- Shangdong Kelun Pharmaceutical Co., Ltd., Bingzhou 256600, China
| | - Yan-Xia Zhou
- Marine College, Shandong University, Weihai 264209, China
- Correspondence:
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14
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Comparative Genomic Analysis of Agarolytic Flavobacterium faecale WV33 T. Int J Mol Sci 2022; 23:ijms231810884. [PMID: 36142798 PMCID: PMC9501601 DOI: 10.3390/ijms231810884] [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: 08/21/2022] [Revised: 09/09/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Flavobacteria are widely dispersed in a variety of environments and produce various polysaccharide-degrading enzymes. Here, we report the complete genome of Flavobacterium faecale WV33T, an agar-degrading bacterium isolated from the stools of Antarctic penguins. The sequenced genome of F. faecale WV33T represents a single circular chromosome (4,621,116 bp, 35.2% G + C content), containing 3984 coding DNA sequences and 85 RNA-coding genes. The genome of F. faecale WV33T contains 154 genes that encode carbohydrate-active enzymes (CAZymes). Among the CAZymes, seven putative genes encoding agarases have been identified in the genome. Transcriptional analysis revealed that the expression of these putative agarases was significantly enhanced by the presence of agar in the culture medium, suggesting that these proteins are involved in agar hydrolysis. Pangenome analysis revealed that the genomes of the 27 Flavobacterium type strains, including F. faecale WV33T, tend to be very plastic, and Flavobacterium strains are unique species with a tiny core genome and a large non-core region. The average nucleotide identity and phylogenomic analysis of the 27 Flavobacterium-type strains showed that F. faecale WV33T was positioned in a unique clade in the evolutionary tree.
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15
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An improved protocol for protoplast production, culture, and whole plant regeneration of the commercial brown seaweed Undaria pinnatifida. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Barzkar N, Sheng R, Sohail M, Jahromi ST, Babich O, Sukhikh S, Nahavandi R. Alginate Lyases from Marine Bacteria: An Enzyme Ocean for Sustainable Future. Molecules 2022; 27:3375. [PMID: 35684316 PMCID: PMC9181867 DOI: 10.3390/molecules27113375] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 12/13/2022] Open
Abstract
The cell wall of brown algae contains alginate as a major constituent. This anionic polymer is a composite of β-d-mannuronate (M) and α-l-guluronate (G). Alginate can be degraded into oligosaccharides; both the polymer and its products exhibit antioxidative, antimicrobial, and immunomodulatory activities and, hence, find many commercial applications. Alginate is attacked by various enzymes, collectively termed alginate lyases, that degrade glycosidic bonds through β-elimination. Considering the abundance of brown algae in marine ecosystems, alginate is an important source of nutrients for marine organisms, and therefore, alginate lyases play a significant role in marine carbon recycling. Various marine microorganisms, particularly those that thrive in association with brown algae, have been reported as producers of alginate lyases. Conceivably, the marine-derived alginate lyases demonstrate salt tolerance, and many are activated in the presence of salts and, therefore, find applications in the food industry. Therefore, this review summarizes the structural and biochemical features of marine bacterial alginate lyases along with their applications. This comprehensive information can aid in the expansion of future prospects of alginate lyases.
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Affiliation(s)
- Noora Barzkar
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas 3995, Iran
| | - Ruilong Sheng
- CQM—Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9000-390 Funchal, Portugal;
- Department of Radiology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan;
| | - Saeid Tamadoni Jahromi
- Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas 9145, Iran;
| | - Olga Babich
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, Kaliningrad 236016, Russia; (O.B.); (S.S.)
| | - Stanislav Sukhikh
- Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, Kaliningrad 236016, Russia; (O.B.); (S.S.)
| | - Reza Nahavandi
- Animal Science Research Institute of Iran (ASRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj 8361, Iran;
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17
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Cao S, Li Q, Xu Y, Tang T, Ning L, Zhu B. Evolving strategies for marine enzyme engineering: recent advances on the molecular modification of alginate lyase. MARINE LIFE SCIENCE & TECHNOLOGY 2022; 4:106-116. [PMID: 37073348 PMCID: PMC10077200 DOI: 10.1007/s42995-021-00122-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/14/2021] [Indexed: 05/03/2023]
Abstract
Alginate, an acidic polysaccharide, is formed by β-d-mannuronate (M) and α-l-guluronate (G). As a type of polysaccharide lyase, alginate lyase can efficiently degrade alginate into alginate oligosaccharides, having potential applications in the food, medicine, and agriculture fields. However, the application of alginate lyase has been limited due to its low catalytic efficiency and poor temperature stability. In recent years, various structural features of alginate lyase have been determined, resulting in modification strategies that can increase the applicability of alginate lyase, making it important to summarize and discuss the current evidence. In this review, we summarized the structural features and catalytic mechanisms of alginate lyase. Molecular modification strategies, such as rational design, directed evolution, conserved domain recombination, and non-catalytic domain truncation, are also described in detail. Lastly, the application of alginate lyase is discussed. This comprehensive summary can inform future applications of alginate lyases.
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Affiliation(s)
- Shengsheng Cao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816 China
| | - Qian Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816 China
| | - Yinxiao Xu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816 China
| | - Tiancheng Tang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816 China
| | - Limin Ning
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Benwei Zhu
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816 China
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18
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Sasaki Y, Yoshikuni Y. Metabolic engineering for valorization of macroalgae biomass. Metab Eng 2022; 71:42-61. [PMID: 35077903 DOI: 10.1016/j.ymben.2022.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 12/18/2022]
Abstract
Marine macroalgae have huge potential as feedstocks for production of a wide spectrum of chemicals used in biofuels, biomaterials, and bioactive compounds. Harnessing macroalgae in these ways could promote wellbeing for people while mitigating climate change and environmental destruction linked to use of fossil fuels. Microorganisms play pivotal roles in converting macroalgae into valuable products, and metabolic engineering technologies have been developed to extend their native capabilities. This review showcases current achievements in engineering the metabolisms of various microbial chassis to convert red, green, and brown macroalgae into bioproducts. Unique features of macroalgae, such as seasonal variation in carbohydrate content and salinity, provide the next challenges to advancing macroalgae-based biorefineries. Three emerging engineering strategies are discussed here: (1) designing dynamic control of metabolic pathways, (2) engineering strains of halophilic (salt-tolerant) microbes, and (3) developing microbial consortia for conversion. This review illuminates opportunities for future research communities by elucidating current approaches to engineering microbes so they can become cell factories for the utilization of macroalgae feedstocks.
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Affiliation(s)
- Yusuke Sasaki
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Yasuo Yoshikuni
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA; Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA; Center for Advanced Bioenergy and Bioproducts Innovation, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA; Global Institution for Collaborative Research and Education, Hokkaido University, Hokkaido, 060-8589, Japan.
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19
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Wang M, Chen L, Lou Z, Yuan X, Pan G, Ren X, Wang P. Cloning and Characterization of a Novel Alginate Lyase from Paenibacillus sp. LJ-23. Mar Drugs 2022; 20:md20010066. [PMID: 35049921 PMCID: PMC8780880 DOI: 10.3390/md20010066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/04/2022] [Accepted: 01/06/2022] [Indexed: 02/01/2023] Open
Abstract
As a low molecular weight alginate, alginate oligosaccharides (AOS) exhibit improved water solubility, better bioavailability, and comprehensive health benefits. In addition, their biocompatibility, biodegradability, non-toxicity, non-immunogenicity, and gelling capability make them an excellent biomaterial with a dual curative effect when applied in a drug delivery system. In this paper, a novel alginate lyase, Algpt, was cloned and characterized from a marine bacterium, Paenibacillus sp. LJ-23. The purified enzyme was composed of 387 amino acid residues, and had a molecular weight of 42.8 kDa. The optimal pH of Algpt was 7.0 and the optimal temperature was 45 °C. The analysis of the conserved domain and the prediction of the three-dimensional structure indicated that Algpt was a novel alginate lyase. The dominant degradation products of Algpt on alginate were AOS dimer to octamer, depending on the incubation time, which demonstrated that Algpt degraded alginate in an endolytic manner. In addition, Algpt was a salt-independent and thermo-tolerant alginate lyase. Its high stability and wide adaptability endow Algpt with great application potential for the efficient preparation of AOS with different sizes and AOS-based products.
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20
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Marine microbial enzymes for the production of algal oligosaccharides and its bioactive potential for application as nutritional supplements. Folia Microbiol (Praha) 2022; 67:175-191. [PMID: 34997524 DOI: 10.1007/s12223-021-00943-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/20/2021] [Indexed: 01/02/2023]
Abstract
Marine macroalgae have a very high carbohydrate content due to complex algal polysaccharides (APS) like agar, alginate, and ulvan in their cell wall. Despite numerous reports on their biomedical properties, their hydrocolloid nature limits their applications. Algal oligosaccharides (AOS), which are hydrolyzed forms of complex APS, are gaining importance due to their low molecular weight, biocompatibility, bioactivities, safety, and solubility in water that makes it a lucrative alternative. The AOS produced through enzymatic hydrolysis using microbial enzymes have far-reaching applications because of its stereospecific nature. Identification and characterization of novel microorganisms producing APS hydrolyzing enzymes are the major bottlenecks for the efficient production of AOS. This review will discuss the marine microbial enzymes identified for AOS production and the bioactive potential of enzymatically produced AOS. This can improve our understanding of the biotechnological potential of microbial enzymes for the production of AOS and facilitate the sustainable utilization of algal biomass. Enzymatically produced AOS are shown to have bioactivities such as antioxidant, antiglycemic, prebiotic, immunomodulation, antiobesity or antihypercholesterolemia, anti-inflammatory, anticancer, and antimicrobial activity. The myriad of health benefits provided by the AOS is the need of the hour as there is an alarming increase in physiological disorders among a wide range of the global population.
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21
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Rhein-Knudsen N, Guan C, Mathiesen G, Horn SJ. Expression and production of thermophilic alginate lyases in Bacillus and direct application of culture supernatant for seaweed saccharification. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Chhetri G, Kim I, Kang M, Kim J, So Y, Seo T. Flavobacterium tagetis sp. nov., a novel urea-hydrolysing bacterium isolated from the roots of Tagetes patula. Int J Syst Evol Microbiol 2021; 71. [PMID: 34542390 DOI: 10.1099/ijsem.0.004984] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, rod-shaped, motile by gliding, non-sporulating and strictly aerobic bacterium, designated strain GN10T, was isolated from the roots of Tagetes patula, collected from the garden of Dongguk University, Goyang, Republic of Korea. The cells could grow at 10-42 °C and at pH 5.5-9.0. Strain GN10T was sensitive to NaCl and tolerated up to 4 % NaCl (w/v). Comparative analysis of 16S rRNA gene sequences revealed the highest similarities to Flavobacterium tistrianum GB 56.1T (98.9 %), Flavobacterium sharifuzzamanii A7.6T (98.6 %), Flavobacterium zhairuonense A5.7T (98.3 %) and Flavobacterium anhuiense D3T (98 %). Phylogenetic analysis showed that strain GN10T clustered within the genus Flavobacterium and formed a monophyletic cluster with its close relative members. The average nucleotide identity and digital DNA-DNA hybridization values between strain GN10T and related species belonging to the genus Flavobacterium were well below the standard threshold for prokaryotic species delineation. The DNA G+C content of strain GN10T was 33.6 mol%. The predominant cellular fatty acids (>10 %) were identified as iso-C15 : 0, C16 : 0 and summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c). Strain GN10T contained menaquinone 6 as the major respiratory quinone. The major polar lipids were phosphatidylethanolamine, three unidentified aminoglycolipids, two unidentified glycolipids, one unidentified phosphoglycolipid and five unidentified lipids. Urease is a nickel-containing enzyme found in archaea, bacteria, plants and unicellular eukaryotes. It serves as a virulence factor and is responsible for pathogenesis in humans and animals. Here, we describe a novel urease-hydrolysing bacterium, strain GN10T. The urease activity of this strain may serve as an indicator of pathogenic potential and drug resistance, which may facilitate the development of many diseases. The results of physiological and biochemical tests allowed the genotypic and phenotypic differentiation of strain GN10T from its closely related members and considered to represent novel species in the genus Flavobacterium, for which the name Flavobacterium tagetis (GN10T=KCTC 82695T=NBRC 114841T) is proposed.
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Affiliation(s)
- Geeta Chhetri
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Inhyup Kim
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Minchung Kang
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Jiyoun Kim
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Yoonseop So
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Taegun Seo
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
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23
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Liu L, Wang Z, Zheng Z, Li Z, Ji X, Cong H, Wang H. Secretory Expression of an Alkaline Alginate Lyase With Heat Recovery Property in Yarrowia lipolytica. Front Microbiol 2021; 12:710533. [PMID: 34434178 PMCID: PMC8381381 DOI: 10.3389/fmicb.2021.710533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 06/30/2021] [Indexed: 11/28/2022] Open
Abstract
Alginate lyase possesses wide application prospects for the degradation of brown algae and preparation of alginate oligosaccharides, and its degradation products display a variety of biological activities. Although many enzymes of this type have been reported, alginate lyases with unique properties are still relatively rare. In the present work, an alginate lyase abbreviated as Alyw203 has been cloned from Vibrio sp. W2 and expressed in food-grade Yarrowia lipolytica. The Alyw203 gene consists of an open reading frame (ORF) of 1,566 bp containing 521 amino acids, of which the first 17 amino acids are considered signal peptides, corresponding to secretory features. The peak activity of the current enzyme appears at 45°C with a molecular weight of approximately 57.0 kDa. Interestingly, Alyw203 exhibits unique heat recovery performance, returning above 90% of its initial activity in the subsequent incubation for 20 min at 10°C, which is conducive to the recovery of current enzymes at low-temperature conditions. Meanwhile, the highest activity is obtained under alkaline conditions of pH 10.0, showing outstanding pH stability. Additionally, as an alginate lyase independent of NaCl and resistant to metal ions, Alyw203 is highly active in various ionic environments. Moreover, the hydrolyzates of present enzymes are mainly concentrated in the oligosaccharides of DP1–DP2, displaying perfect product specificity. The alkali suitability, heat recovery performance, and high oligosaccharide yield of Alyw203 make it a potential candidate for industrial production of the monosaccharide and disaccharide.
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Affiliation(s)
- Lu Liu
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Zhipeng Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Zhihong Zheng
- College of Food Science and Engineering, Dalian Ocean University, Dalian, China
| | - Ze Li
- College of Advanced Agricultural Sciences, Linyi Vocational University of Science and Technology, Linyi, China
| | - Xiaofeng Ji
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Haihua Cong
- College of Food Science and Engineering, Dalian Ocean University, Dalian, China
| | - Haiying Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
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24
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Zhang L, Li X, Zhang X, Li Y, Wang L. Bacterial alginate metabolism: an important pathway for bioconversion of brown algae. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:158. [PMID: 34275475 PMCID: PMC8286568 DOI: 10.1186/s13068-021-02007-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Brown macroalgae have attracted great attention as an alternative feedstock for biorefining. Although direct conversion of ethanol from alginates (major components of brown macroalgae cell walls) is not amenable for industrial production, significant progress has been made not only on enzymes involved in alginate degradation, but also on metabolic pathways for biorefining at the laboratory level. In this article, we summarise recent advances on four aspects: alginate, alginate lyases, different alginate-degrading systems, and application of alginate lyases and associated pathways. This knowledge will likely inspire sustainable solutions for further application of both alginate lyases and their associated pathways.
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Affiliation(s)
- Lanzeng Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Xue Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Xiyue Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
| | - Yingjie Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
| | - Lushan Wang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China
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Wang M, Chen L, Zhang Z. Potential applications of alginate oligosaccharides for biomedicine - A mini review. Carbohydr Polym 2021; 271:118408. [PMID: 34364551 DOI: 10.1016/j.carbpol.2021.118408] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/23/2021] [Accepted: 07/03/2021] [Indexed: 01/02/2023]
Abstract
Extensive research on marine algae, especially on their health-promoting properties, has been conducted. Various ingredients with potential biomedical applications have been discovered and extracted from marine algae. Alginate oligosaccharides are low molecular weight alginate polysaccharides present in cell walls of brown algae. They exhibit various health benefits such as anti-inflammatory, anti-microbial, anti-oxidant, anti-tumor and immunomodulation. Their low-toxicity, non-immunogenicity, and biodegradability make them an excellent material in biomedicine. Alginate oligosaccharides can be chemically or biochemically modified to enhance their biological activity and potential in pharmaceutical applications. This paper provides a brief overview on alginate oligosaccharides characteristics, modification patterns and highlights their vital health promoting properties.
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Affiliation(s)
- Mingpeng Wang
- College of Life Science, Qufu Normal University, Qufu 273100, China
| | - Lei Chen
- College of Life Science, Qufu Normal University, Qufu 273100, China.
| | - Zhaojie Zhang
- Department of Zoology and Physiology, University of Wyoming, Laramie, Wyoming, USA
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Mrudulakumari Vasudevan U, Lee OK, Lee EY. Alginate derived functional oligosaccharides: Recent developments, barriers, and future outlooks. Carbohydr Polym 2021; 267:118158. [PMID: 34119132 DOI: 10.1016/j.carbpol.2021.118158] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023]
Abstract
Alginate is a biopolymer used extensively in the food, pharmaceutical, and chemical industries. Alginate oligosaccharides (AOS) derived from alginate exhibit superior biological activities and therapeutic potential. Alginate lyases with characteristic substrate specificity can facilitate the production of a broad array of AOS with precise structure and functionality. By adopting innovative analytical tools in conjunction with focused clinical studies, the structure-bioactivity relationship of a number of AOS has been brought to light. This review covers fundamental aspects and recent developments in AOS research. Enzymatic and microbial processes involved in AOS production from brown algae and sequential steps involved in AOS structure elucidation are outlined. Biological mechanisms underlying the health benefits of AOS and their potential industrial and therapeutic applications are elaborated. Withal, various challenges in AOS research are traced out, and future directions, specifically on recombinant systems for AOS preparation, are delineated to further widen the horizon of these exceptional oligosaccharides.
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Affiliation(s)
- Ushasree Mrudulakumari Vasudevan
- Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Ok Kyung Lee
- Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
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Jagtap AS, Manohar CS. Overview on Microbial Enzymatic Production of Algal Oligosaccharides for Nutraceutical Applications. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:159-176. [PMID: 33763808 DOI: 10.1007/s10126-021-10027-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Global requirement for algal foods is increasing, as they are progressively consumed for its nutrition and health. Macroalgae is a proven source of metabolites, proteins, pigments, bioactive compounds, and algal polysaccharides. The unique polysaccharides such as agar, carrageenan, porphyran, alginate, fucoidan, laminarin, and ulvan are known for its wide range of bioactivities and extensively used for applications from tissue engineering to drug delivery. However, there are few limitations due to its high molecular size, low compatibility, and hydrocolloid nature. Hence, the enzymatically produced algal oligosaccharides have drawn tremendous attention due to its green synthesis, solubility, and lower molecular size. They are reported to have bioactivities including antioxidant, antiglycemic, immunostimulatory, anti-inflammatory, and prebiotic activities, which can be used in the healthcare and nutraceutical industry for the manufacture of functional foods and dietary supplements. However, identification of potential microorganisms, producing polysaccharide hydrolyzing enzymes, remains a major bottle neck for efficient utilization of bioactive algal oligosaccharides. This review summarizes the recent developments in the identification and characterization of microbial enzymes for the production of bioactive algal oligosaccharides. This can improve our understanding of bioactive algal oligosaccharides and pave way for efficient utilization of macroalgae to prevent various chronic diseases.
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Affiliation(s)
- Ashok S Jagtap
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa, 403004, India
- School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Goa, 403206, India
| | - Cathrine S Manohar
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa, 403004, India.
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Expression and Characterization of a Cold-Adapted Alginate Lyase with Exo/Endo-Type Activity from a Novel Marine Bacterium Alteromonas portus HB161718 T. Mar Drugs 2021; 19:md19030155. [PMID: 33802659 PMCID: PMC8002439 DOI: 10.3390/md19030155] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/09/2021] [Accepted: 03/12/2021] [Indexed: 12/11/2022] Open
Abstract
The alginate lyases have unique advantages in the preparation of alginate oligosaccharides and processing of brown algae. Herein, a gene alg2951 encoding a PL7 family alginate lyase with exo/endo-type activity was cloned from a novel marine bacterium Alteromonas portus HB161718T and then expressed in Escherichia coli. The recombinant Alg2951 in the culture supernatant reached the activity of 63.6 U/mL, with a molecular weight of approximate 60 kDa. Alg2951 exhibited the maximum activity at 25 °C and pH 8.0, was relatively stable at temperatures lower than 30 °C, and showed a special preference to poly-guluronic acid (polyG) as well. Both NaCl and KCl had the most promotion effect on the enzyme activity of Alg2951 at 0.2 M, increasing by 21.6 and 19.1 times, respectively. The TCL (Thin Layer Chromatography) and ESI-MS (Electrospray Ionization Mass Spectrometry) analyses suggested that Alg2951 could catalyze the hydrolysis of sodium alginate to produce monosaccharides and trisaccharides. Furthermore, the enzymatic hydrolysates displayed good antioxidant activity by assays of the scavenging abilities towards radicals (hydroxyl and ABTS+) and the reducing power. Due to its cold-adapted and dual exo/endo-type properties, Alg2951 can be a potential enzymatic tool for industrial production.
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Rhein-Knudsen N, Meyer AS. Chemistry, gelation, and enzymatic modification of seaweed food hydrocolloids. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Cheng D, Jiang C, Xu J, Liu Z, Mao X. Characteristics and applications of alginate lyases: A review. Int J Biol Macromol 2020; 164:1304-1320. [PMID: 32745554 DOI: 10.1016/j.ijbiomac.2020.07.199] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/09/2020] [Accepted: 07/22/2020] [Indexed: 12/26/2022]
Abstract
Brown algae, as the main source of alginate, are a type of marine biomass with a very high output. Alginate, a polysaccharide composed of β-D-mannuronic acid (M) and α-L-guluronic acid (G), has great potential for applications in the food, cosmetic and pharmaceutical industries. Alginate lyases (Alys) can degrade alginate polymers into oligosaccharides or monosaccharides, resulting in a broad application field. Alys can be used for both the production of alginate oligosaccharides and the biorefinery of brown algae. In view of their important functions, an increasing number of Alys have been isolated and characterized. For better application, a comprehensive understanding of Alys is essential. Therefore, in this paper, we summarized recently discovered Alys, discussed their characteristics, and introduced their structural properties, degradation patterns and biological roles in alginate-degrading organisms. In addition, applications of Alys have been illustrated with examples. This paper provides a relatively comprehensive description of Alys, which is significant for Alys exploration and application.
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Affiliation(s)
- Danyang Cheng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Chengcheng Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Jiachao Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Zhen Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China.
| | - Xiangzhao Mao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Zhang C, Wang W, Zhao X, Wang H, Yin H. Preparation of alginate oligosaccharides and their biological activities in plants: A review. Carbohydr Res 2020; 494:108056. [PMID: 32559511 DOI: 10.1016/j.carres.2020.108056] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/31/2020] [Accepted: 05/31/2020] [Indexed: 12/11/2022]
Abstract
Alginate oligosaccharide (AOS) is the degradation product of alginates extracted from brown algae. As a multifunctional oligomer, it has attracted widespread attention in plant research. Different methods of preparation generate AOS possessing diverse structural properties, and result in differences in AOS activity. In this review, the methods of preparation and characterization of AOS are briefly summarized, followed by a systematic introduction to the activity and mechanisms of AOS in plants. AOS can act as a growth promoter at different growth stages of plants. AOS also enhances resistance to pathogens, drought, salt, heavy metals and other stressors by triggering plant immunity, exerting bioactivity just like a pathogen-associated molecular pattern. In addition, AOS can regulate ABA biosynthesis and metabolite to preserve fruit quality and enhance shelf life. This review provides a comprehensive summary of the biological activity of AOS in plants, which will support research and the application of AOS treatments for plants in the future.
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Affiliation(s)
- Chunguang Zhang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China; Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Wenxia Wang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaoming Zhao
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Hongying Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian, 116034, China.
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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Zhou HX, Xu SS, Yin XJ, Wang FL, Li Y. Characterization of a New Bifunctional and Cold-Adapted Polysaccharide Lyase (PL) Family 7 Alginate Lyase from Flavobacterium sp. Mar Drugs 2020; 18:E388. [PMID: 32722647 PMCID: PMC7460543 DOI: 10.3390/md18080388] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/14/2022] Open
Abstract
Alginate oligosaccharides produced by enzymatic degradation show versatile physiological functions and biological activities. In this study, a new alginate lyase encoding gene alyS02 from Flavobacterium sp. S02 was recombinantly expressed at a high level in Yarrowia lipolytica, with the highest extracellular activity in the supernatant reaching 36.8 ± 2.1 U/mL. AlyS02 was classified in the polysaccharide lyase (PL) family 7. The optimal reaction temperature and pH of this enzyme were 30 °C and 7.6, respectively, indicating that AlyS02 is a cold-adapted enzyme. Interestingly, AlyS02 contained more than 90% enzyme activity at 25 °C, higher than other cold-adapted enzymes. Moreover, AlyS02 is a bifunctional alginate lyase that degrades both polyG and polyM, producing di- and trisaccharides from alginate. These findings suggest that AlyS02 would be a potent tool for the industrial applications.
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Affiliation(s)
- Hai-Xiang Zhou
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China;
| | - Shan-Shan Xu
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
| | - Xue-Jing Yin
- Qingdao Mental Health Center, Qingdao University, Qingdao 266034, China;
| | - Feng-Long Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China;
| | - Yang Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
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Cheng W, Yan X, Xiao J, Chen Y, Chen M, Jin J, Bai Y, Wang Q, Liao Z, Chen Q. Isolation, identification, and whole genome sequence analysis of the alginate-degrading bacterium Cobetia sp. cqz5-12. Sci Rep 2020; 10:10920. [PMID: 32616809 PMCID: PMC7331586 DOI: 10.1038/s41598-020-67921-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/16/2020] [Indexed: 01/09/2023] Open
Abstract
Alginate-degrading bacteria or alginate lyases can be used to oligomerize alginate. In this study, an alginate-degrading bacterium with high alginolytic activity was successfully screened by using Sargassum fusiforme sludge. When the strain was grown on a plate containing sodium alginate, the transparent ring diameter (D) was 2.2 cm and the ratio (D/d) of transparent ring diameter to colony diameter (d) was 8.8. After 36 h in culture at a temperature of 28 °C shaken at 150 r/min, the enzymatic activity of the fermentation supernatant reached 160 U/mL, and the enzymatic activity of the bacterial precipitate harvested was 2,645 U/mL. The strain was named Cobetia sp. cqz5-12. Its genome is circular in shape, 4,209,007 bp in size, with a 62.36% GC content. It contains 3,498 predicted coding genes, 72 tRNA genes, and 21 rRNA genes. The functional annotations for the coding genes demonstrated that there were 181 coding genes in the genome related to carbohydrate transport and metabolism and 699 coding genes with unknown functions. Three putative coding genes, alg2107, alg2108 and alg2112, related to alginate degradation were identified by analyzing the carbohydrate active enzyme (CAZy) database. Moreover, proteins Alg2107 and Alg2112 were successfully expressed and exhibited alginate lyase activity.
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Affiliation(s)
- Wenwen Cheng
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Xuanyu Yan
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Jiali Xiao
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Yunyun Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Minghui Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Jiayi Jin
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Yu Bai
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Qi Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Zhiyong Liao
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China.
| | - Qiongzhen Chen
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, People's Republic of China.
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Bose SK, He Y, Howlader P, Wang W, Yin H. The N-glycan processing enzymes β-D-N-acetylhexosaminidase are involved in ripening-associated softening in strawberry fruit. Journal of Food Science and Technology 2020; 58:621-631. [PMID: 33568856 DOI: 10.1007/s13197-020-04576-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/03/2020] [Accepted: 06/12/2020] [Indexed: 01/02/2023]
Abstract
Excessive softening of fruits during the ripening process leads to rapid deterioration. N-glycan processing enzymes are reported to play important roles during fruit ripening associated softening. Efforts have been made to identify and purify β-D-N-acetyl hexosaminidase (β-Hex) from strawberry fruit and also to investigate its function during ripening. More than that, the postharvest treatment effect of alginate oligosaccharides (AOS) at a concentration of 0.1 g L-1 on fruit firmness and the activity of N-glycan processing enzymes were also investigated during the storage of strawberry. Results demonstrated that the full-length of β-Hex 1 and β-Hex 2 genes were 2186 and 2013 bp, including an ORF of 1598 and 1724 bp and encoding 532 and 574 amino acids with a predicted molecular weight of 60 and 71 kDa, respectively. Moreover, β-hex enzyme activity and the expression of their encoding genes increased during the ripening of strawberry. In addition, postharvest application of AOS delayed the loss of firmness and suppressed the activity of N-glycan processing enzymes (α-Man and β-Hex) along with N-glycan processing enzymes associated genes expression resulting in delayed fruit softening. Therefore, our study suggests that N-glycan processing enzymes may play roles in strawberry softening and AOS treatment suppressed enzymes activity and preserve firmness of the fruit.
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Affiliation(s)
- Santosh Kumar Bose
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China.,University of Chinese Academy of Sciences, Beijing, 100049 China.,Department of Horticulture, Patuakhali Science and Technology University, Patuakhali, Bangladesh
| | - Yanqiu He
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China
| | - Prianka Howlader
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China.,University of Chinese Academy of Sciences, Beijing, 100049 China.,Department of Horticulture, Patuakhali Science and Technology University, Patuakhali, Bangladesh
| | - Wenxia Wang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China.,Natural Products and Glyco-Biotechnology Lab, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road, Dalian, China
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China.,University of Chinese Academy of Sciences, Beijing, 100049 China.,Natural Products and Glyco-Biotechnology Lab, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road, Dalian, China
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Dharani SR, Srinivasan R, Sarath R, Ramya M. Recent progress on engineering microbial alginate lyases towards their versatile role in biotechnological applications. Folia Microbiol (Praha) 2020; 65:937-954. [DOI: 10.1007/s12223-020-00802-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/16/2020] [Indexed: 11/30/2022]
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Sun M, Sun C, Li T, Li K, Yan S, Yin H. Characterization of a novel bifunctional mannuronan C-5 epimerase and alginate lyase from Pseudomonas mendocina. sp. DICP-70. Int J Biol Macromol 2020; 150:662-670. [DOI: 10.1016/j.ijbiomac.2020.02.126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 11/15/2022]
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Purification and Characterization of a Novel Endolytic Alginate Lyase from Microbulbifer sp. SH-1 and Its Agricultural Application. Mar Drugs 2020; 18:md18040184. [PMID: 32244418 PMCID: PMC7230735 DOI: 10.3390/md18040184] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 01/09/2023] Open
Abstract
Alginate, an important acidic polysaccharide in marine multicellular algae, has attracted attention as a promising biomass resource for the production of medical and agricultural chemicals. Alginate lyase is critical for saccharification and utilization of alginate. Discovering appropriate and efficient enzymes for depolymerizing alginate into fermentable fractions plays a vital role in alginate commercial exploitation. Herein, a unique alginate lyase, AlgSH7, belonging to polysaccharide lyase 7 family is purified and characterized from an alginate-utilizing bacterium Microbulbifer sp. SH-1. The purified AlgSH7 shows a specific activity of 12,908.26 U/mg, and its molecular weight is approximately 66.4 kDa. The optimal temperature and pH of AlgSH7 are 40 °C and pH 9.0, respectively. The enzyme exhibits stability at temperatures below 30 °C and within an extensive pH range of 5.0-9.0. Metal ions including Na+, K+, Al3+, and Fe3+ considerably enhance the activity of the enzyme. AlgSH7 displays a preference for poly-mannuronic acid (polyM) and a very low activity towards poly-guluronic acid (polyG). TLC and ESI-MS analysis indicated that the enzymatic hydrolysates mainly include disaccharides, trisaccharides, and tetrasaccharides. Noteworthy, the alginate oligosaccharides (AOS) prepared by AlgSH7 have an eliciting activity against chilling stress in Chinese flowering cabbage (Brassica parachinensis L.). These results suggest that AlgSH7 has a great potential to design an effective process for the production of alginate oligomers for agricultural applications.
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Zhang YH, Shao Y, Jiao C, Yang QM, Weng HF, Xiao AF. Characterization and Application of an Alginate Lyase, Aly1281 from Marine Bacterium Pseudoalteromonas carrageenovora ASY5. Mar Drugs 2020; 18:E95. [PMID: 32023889 PMCID: PMC7073683 DOI: 10.3390/md18020095] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 12/13/2022] Open
Abstract
Alginate extracted from widely cultured brown seaweed can be hydrolyzed by alginate lyase to produce alginate oligosaccharides (AOS) with intriguing biological activities. Herein, a novel alginate lyase Aly1281 was cloned from marine bacterium Pseudoalteromonas carrageenovora ASY5 isolated from mangrove soil and found to belong to polysaccharide lyase family 7. Aly1281 exhibited maximum activity at pH 8.0 and 50 °C and have broad substrate specificity for polyguluronate and polymannuronate. Compared with other alginate lyases, Aly1281 exhibited high degradation specificity and mainly produced di-alginate oligosaccharides which displayed good antioxidant function to reduce ferric and scavenge radicals such as hydroxyl, ABTS+ and DPPH. Moreover, the catalytic activity and kinetic performance of Aly1281 were highly improved with the addition of salt, demonstrating a salt-activation property. A putative conformational structural feature of Aly1281 was found by MD simulation analysis for understanding the salt-activation effect.
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Affiliation(s)
- Yong-Hui Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Yuan Shao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Chao Jiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Qiu-Ming Yang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - Hui-Fen Weng
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
| | - An-Feng Xiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; (Y.-H.Z.); (Y.S.); (C.J.); (Q.-M.Y.); (H.-F.W.)
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, China
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Mohapatra BR. Biocatalytic characteristics of chitosan nanoparticle-immobilized alginate lyase extracted from a novel Arthrobacter species AD-10. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2019.101458] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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40
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Zhang C, Howlader P, Liu T, Sun X, Jia X, Zhao X, Shen P, Qin Y, Wang W, Yin H. Alginate Oligosaccharide (AOS) induced resistance to Pst DC3000 via salicylic acid-mediated signaling pathway in Arabidopsis thaliana. Carbohydr Polym 2019; 225:115221. [PMID: 31521273 DOI: 10.1016/j.carbpol.2019.115221] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/07/2019] [Accepted: 08/19/2019] [Indexed: 12/22/2022]
Abstract
Alginate Oligosaccharide (AOS) is a natural biological carbohydrate extracted from seaweed. In our study, Arabidopsis thaliana was used to evaluate the AOS-induced resistance to Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Resistance was vitally enhanced at 25 mg/L in wild type (WT), showing the decreased disease index and bacteria colonies, burst of ROS and NO, high transcription expression of resistance genes PR1 and increased content of salicylic acid (SA). In SA deficient mutant (sid2), AOS-induced disease resistance dropped obviously compared to WT. The disease index was significantly higher than WT and the expression of recA and avrPtoB are two and four times lower than WT, implying that AOS induces disease resistance injecting Pst DC3000 after three days treatment by arousing the SA pathway. Our results provide a reference for the profound research and application of AOS in agriculture.
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Affiliation(s)
- Chunguang Zhang
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Prianka Howlader
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tongmei Liu
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; College of Food Science and Engineering, Dalian Ocean University, Dalian 116023, China
| | - Xue Sun
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaochen Jia
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaoming Zhao
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Peili Shen
- Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao Brightmoon Seaweed Group Co Ltd., Qingdao, China
| | - Yimin Qin
- Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao Brightmoon Seaweed Group Co Ltd., Qingdao, China
| | - Wenxia Wang
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Heng Yin
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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41
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Kim I, Kim J, Chhetri G, Seo T. Flavobacterium humi sp. nov., a flexirubin-type pigment producing bacterium, isolated from soil. J Microbiol 2019; 57:1079-1085. [DOI: 10.1007/s12275-019-9350-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/10/2019] [Accepted: 10/28/2019] [Indexed: 01/02/2023]
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42
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Illumina-based Analysis of Endophytic Bacterial Diversity of four Allium species. Sci Rep 2019; 9:15271. [PMID: 31649302 PMCID: PMC6813343 DOI: 10.1038/s41598-019-51707-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 10/07/2019] [Indexed: 11/08/2022] Open
Abstract
Allium species are popular vegetables in China and possess antifungal and antibacterial activities. This study aimed to compare the endophytic bacterial community in the four crucial Allium species in China, Chinese leek (CL), garlic (GA), onion (ON,) and Welsh onion (WO), using sequences of the V3–V4 region of the bacterial 16S rRNA gene. A total of 1,036,637 high-quality sequences and 719 operational taxonomic units (OTUs) were obtained across all libraries. A total of 20 phyla, 50 classes, 80 orders, 134 families, and 234 genera were identified. Among them, 18 OTUs and 19 genera were shared among the four Allium species. Proteobacteria (42.68%) and Bacteroidetes (20.18%) were the dominant phyla in CL, while one unclassified (>70%) was the dominant phyla in the other three Allium species. The alpha-diversity analysis showed the bacterial richness and diversity in CL were significantly higher than those in the other three Allium species. Principal coordinate analysis (PCA) showed endophytic bacterial communities in GA, WO, and ON were more similar than those in CL. Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) analysis revealed endophytic bacteria mostly enriched in Membrane Transport, Amino Acid Metabolism and Carbohydrate Metabolism pathway. 17 of the 23 Kyoto Encyclopedia of Genes and Genomes (KEGG) categories and 159 of the 206 lower-level KEGG pathways in CL were significantly higher than those in the other three Allium species. Pearson’s correlation indicated that KEGG pathways with significant differences among the Allium species were closely related to the bacterial genera with significant differences between the Allium species. The findings of our study provided insight into the complex endophytic microbial communities in Allium species.
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43
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Sun M, Sun C, Xie H, Yan S, Yin H. A simple method to calculate the degree of polymerization of alginate oligosaccharides and low molecular weight alginates. Carbohydr Res 2019; 486:107856. [PMID: 31689577 DOI: 10.1016/j.carres.2019.107856] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/05/2019] [Accepted: 10/23/2019] [Indexed: 12/16/2022]
Abstract
This study presents a quick, simple and accurate method to calculate the degree of polymerization (DP) of alginate oligosaccharides (AOS) and low molecular weight alginates from the concentration of reducing sugar determined by 3,5-dinitrosalicylic acid (DNS) assay. 1H NMR spectroscopy, mass spectroscopy (MS) and certified standards were used to verify the accuracy of this method, and the results showed DP calculated from DNS assay agreed with the actual DP. This method has great potential to simplify the process of measuring DP of alginate in lab and thus could be incorporated into various researches on alginates in the future. Moreover, similar method could be applied when studying the DP of other oligosaccharides.
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Affiliation(s)
- Ming Sun
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Dalian Maritime University, Dalian, China.
| | - Chu Sun
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of California, Berkeley, Berkeley, USA.
| | - Hongguo Xie
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | | | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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Zhu B, Li K, Wang W, Ning L, Tan H, Zhao X, Yin H. Preparation of trisaccharides from alginate by a novel alginate lyase Alg7A from marine bacterium Vibrio sp. W13. Int J Biol Macromol 2019; 139:879-885. [DOI: 10.1016/j.ijbiomac.2019.08.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/24/2019] [Accepted: 08/01/2019] [Indexed: 01/18/2023]
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45
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Liu J, Yang S, Li X, Yan Q, Reaney MJT, Jiang Z. Alginate Oligosaccharides: Production, Biological Activities, and Potential Applications. Compr Rev Food Sci Food Saf 2019; 18:1859-1881. [DOI: 10.1111/1541-4337.12494] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/09/2019] [Accepted: 07/29/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Jun Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural Univ. Beijing 100083 China
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business Univ. Beijing 100048 China
| | - Shaoqing Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural Univ. Beijing 100083 China
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthBeijing Technology and Business Univ. Beijing 100048 China
| | - Qiaojuan Yan
- Bioresource Utilization LaboratoryCollege of EngineeringChina Agricultural Univ. Beijing 100083 China
| | - Martin J. T. Reaney
- Dept. of Plant SciencesUniv. of Saskatchewan Saskatoon SK S7N 5A8 Canada
- Guangdong Saskatchewan Oilseed Joint Laboratory (GUSTO)Dept. of Food Science and EngineeringJinan Univ. Guangzhou 510632 China
| | - Zhengqiang Jiang
- Beijing Advanced Innovation Center for Food Nutrition and Human HealthCollege of Food Science and Nutritional EngineeringChina Agricultural Univ. Beijing 100083 China
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46
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Jiang Z, Guo Y, Wang X, Li H, Ni H, Li L, Xiao A, Zhu Y. Molecular cloning and characterization of AlgL17, a new exo-oligoalginate lyase from Microbulbifer sp. ALW1. Protein Expr Purif 2019; 161:17-27. [DOI: 10.1016/j.pep.2019.03.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
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Fischer A, Wefers D. Chromatographic analysis of alginate degradation by five recombinant alginate lyases from Cellulophaga algicola DSM 14237. Food Chem 2019; 299:125142. [PMID: 31325715 DOI: 10.1016/j.foodchem.2019.125142] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 11/16/2022]
Abstract
Alginate lyases can be used for alginate oligosaccharide production and for structural characterization or modification of alginates. For these applications it is important to obtain detailed information on mode of action and substrate specificities of alginate lyases. In this study, five alginate lyase genes were cloned from Cellulophaga algicola DSM 14237 genomic DNA, heterologously expressed, and characterized by using HPSEC-RI and HPAEC-PAD/MS. It was demonstrated that these analytical approaches can provide detailed information on preferred substrates, extent of hydrolysis, and the liberated products. The recombinant enzymes cleaved alginates endolytically (CaAly1, CaAly2, CaAly3) or exolytically (CaAly4, CaAly5). The three endolytic alginate lyases predominantly hydrolyzed guluronic acid-rich alginates, only CaAly1 also showed activity on mannuronic acid-rich alginates. The oligosaccharide profiles further demonstrated that the endolytic enzymes have rather narrow but slightly different substrate specificities and that the two exolytic alginate lyases mainly cleaved unsaturated guluronic acid oligosaccharides to monomers.
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Affiliation(s)
- Anja Fischer
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20a, 76131 Karlsruhe, Germany
| | - Daniel Wefers
- Department of Food Chemistry and Phytochemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20a, 76131 Karlsruhe, Germany.
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48
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Wang Y, Chen X, Bi X, Ren Y, Han Q, Zhou Y, Han Y, Yao R, Li S. Characterization of an Alkaline Alginate Lyase with pH-Stable and Thermo-Tolerance Property. Mar Drugs 2019; 17:md17050308. [PMID: 31137685 PMCID: PMC6562718 DOI: 10.3390/md17050308] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/11/2019] [Accepted: 05/14/2019] [Indexed: 01/05/2023] Open
Abstract
Alginate oligosaccharides (AOS) show versatile bioactivities. Although various alginate lyases have been characterized, enzymes with special characteristics are still rare. In this study, a polysaccharide lyase family 7 (PL7) alginate lyase-encoding gene, aly08, was cloned from the marine bacterium Vibrio sp. SY01 and expressed in Escherichia coli. The purified alginate lyase Aly08, with a molecular weight of 35 kDa, showed a specific activity of 841 U/mg at its optimal pH (pH 8.35) and temperature (45 °C). Aly08 showed good pH-stability, as it remained more than 80% of its initial activity in a wide pH range (4.0–10.0). Aly08 was also a thermo-tolerant enzyme that recovered 70.8% of its initial activity following heat shock treatment for 5 min. This study also demonstrated that Aly08 is a polyG-preferred enzyme. Furthermore, Aly08 degraded alginates into disaccharides and trisaccharides in an endo-manner. Its thermo-tolerance and pH-stable properties make Aly08 a good candidate for further applications.
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Affiliation(s)
- Yanan Wang
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Xuehong Chen
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Xiaolin Bi
- Department of Rehabilitation Medicine, Qingdao University, Qingdao 266071, China.
| | - Yining Ren
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Qi Han
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Yu Zhou
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Yantao Han
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
| | - Ruyong Yao
- Central Laboratory of Medicine, Qingdao University, Qingdao 266071, China.
| | - Shangyong Li
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao 266071, China.
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Li J, Cai C, Yang C, Li J, Sun T, Yu G. Recent Advances in Pharmaceutical Potential of Brown Algal Polysaccharides and their Derivatives. Curr Pharm Des 2019; 25:1290-1311. [PMID: 31237200 DOI: 10.2174/1381612825666190618143952] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/31/2019] [Indexed: 02/07/2023]
Abstract
Marine plants, animals and microorganisms display steady growth in the ocean and are abundant carbohydrate resources. Specifically, natural polysaccharides obtained from brown algae have been drawing increasing attention owing to their great potential in pharmaceutical applications. This review describes the structural and biological features of brown algal polysaccharides, including alginates, fucoidans, and laminarins, and it highlights recently developed approaches used to obtain the oligo- and polysaccharides with defined structures. Functional modification of these polysaccharides promotes their advanced applications in biomedical materials for controlled release and targeted drug delivery, etc. Moreover, brown algal polysaccharides and their derivatives possess numerous biological activities with anticancer, anticoagulant, wound healing, and antiviral properties. In addition, we also discuss carbohydrate- based substrates from brown algae, which are currently in clinical and preclinical studies, as well as the marine drugs that are already on the market. The present review summarizes the recent development in carbohydratebased products from brown algae, with promising findings that could rapidly facilitate the future discovery of novel marine drugs.
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Affiliation(s)
- Jun Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Chao Cai
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| | - Chendong Yang
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jianghua Li
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Tiantian Sun
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education & Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
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50
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Chhetri G, Yang D, Choi J, Kim H, Seo T. Flavobacterium edaphi sp. nov., isolated from soil from Jeju Island, Korea. Arch Microbiol 2018; 201:539-545. [DOI: 10.1007/s00203-018-1593-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/16/2018] [Accepted: 11/01/2018] [Indexed: 01/02/2023]
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