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Chen G, Khan IM, Zhang T, Campanella OH, Miao M. Alternansucrase as a key enabling tool of biotransformation from molecular features to applications: A review. Int J Biol Macromol 2024; 279:135096. [PMID: 39214198 DOI: 10.1016/j.ijbiomac.2024.135096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 08/21/2024] [Accepted: 08/24/2024] [Indexed: 09/04/2024]
Abstract
Alternansucrase (ASR), classified in GH70, produces unique α-glucans with alternating α-1,3 and α-1,6 glycosidic linkages in the backbone chain from renewable sucrose which is easily obtained from nature with low cost. ASR has synthesized many products with valuable functionalities that hold enormous commercial interest and promising applications. The influence of biocatalysis and fermentation parameters on the yields, and properties of products are critical for the propositions made to promote the enzyme application. Investigations on ASR have been compiled in the review to provide information on the enzyme, products and parameters. This review summarizes studies on the characteristics, conversion mechanism, products, and beneficial applications of ASR and exhibits structure-based technologies to improve enzyme activity, specificity, and thermostability for industrial applications. Finally, prospects for further development are also proposed for various ASR applications in food and other fields.
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Affiliation(s)
- Gang Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; College of Food and Health, Zhejiang Agriculture and Forest University, Hangzhou 311300, China
| | - Imran Mahmood Khan
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Osvaldo H Campanella
- Department of Food Science and Technology, Ohio State University, Columbus, OH, USA
| | - Ming Miao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Im JK, Seo DH, Yu JS, Yoo SH. Efficient and novel biosynthesis of myricetin α-triglucoside with improved solubility using amylosucrase from Deinococcus deserti. Int J Biol Macromol 2024; 273:133205. [PMID: 38885871 DOI: 10.1016/j.ijbiomac.2024.133205] [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: 03/14/2024] [Revised: 06/02/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Although myricetin (3,3',4',5,5',7-hexahydroxyflavone, MYR) has a high antioxidant capacity and health functions, its use as a functional food material is limited owing to its low stability and water solubility. Amylosucrase (ASase) is capable of biosynthesizing flavonol α-glycoside using flavonols as acceptor molecules and sucrose as a donor molecule. Here, ASase from Deinococcus deserti (DdAS) efficiently biosynthesizes a novel MYR α-triglucoside (MYRαG3) using MYR as the acceptor molecule. Comparative homology analysis and computational simulation revealed that DdAS has a different active pocket for the transglycosylation reaction. DdAS produced MYRαG3 with a conversion efficiency of 67.4 % using 10 mM MYR and 50 mM sucrose as acceptor and donor molecules, respectively. The structure of MYRαG3 was identified as MYR 4'-O-4″,6″-tri-O-α-D-glucopyranoside using NMR and LC-MS. In silico analysis confirmed that DdAS has a distinct active pocket compared to other ASases. In addition, molecular docking simulations predicted the synthetic sequence of MYRαG3. Furthermore, MYRαG3 showed a similar DPPH radical scavenging activity of 49 %, comparable to MYR, but with significantly higher water solubility, which increased from 0.03 μg/mL to 511.5 mg/mL. In conclusion, this study demonstrated the efficient biosynthesis of a novel MYRαG3 using DdAS and highlighted the potential of MYRαG3 as a functional material.
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Affiliation(s)
- Joong-Ki Im
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Dong-Ho Seo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea
| | - Jae Sik Yu
- Department of Integrative Sciences and Industry, Sejong University, Seoul 05006, Republic of Korea
| | - Sang-Ho Yoo
- Department of Food Science & Biotechnology, Carbohydrate Bioproduct Research Center, Sejong University, Seoul 05006, Republic of Korea.
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Tian Y, Xu W, Guang C, Zhang W, Mu W. Glycosylation of flavonoids by sucrose- and starch-utilizing glycoside hydrolases: A practical approach to enhance glycodiversification. Crit Rev Food Sci Nutr 2024; 64:7408-7425. [PMID: 36876518 DOI: 10.1080/10408398.2023.2185201] [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] [Indexed: 03/07/2023]
Abstract
Flavonoids are ubiquitous and diverse in plants and inseparable from the human diet. However, in terms of human health, their further research and application in functional food and pharmaceutical industries are hindered by their low water solubility. Therefore, flavonoid glycosylation has recently attracted research attention because it can modulate the physicochemical and biochemical properties of flavonoids. This review represents a comprehensive overview of the O-glycosylation of flavonoids catalyzed by sucrose- and starch-utilizing glycoside hydrolases (GHs). The characteristics of this feasible biosynthesis approach are systematically summarized, including catalytic mechanism, specificity, reaction conditions, and yields of the enzymatic reaction, as well as the physicochemical properties and bioactivities of the product flavonoid glycosides. The cheap glycosyl donor substrates and high yields undoubtedly make it a practical flavonoid modification approach to enhance glycodiversification.
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Affiliation(s)
- Yuqing Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Cuie Guang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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Boucheffa S, Sobhi W, Attoui A, Selli S, Kelebek H, Semmeq A, Benguerba Y. Effect of the main constituents of Pistacia lentiscus leaves against the DPPH radical and xanthine oxidase: experimental and theoretical study. J Biomol Struct Dyn 2022; 40:9870-9884. [PMID: 34114947 DOI: 10.1080/07391102.2021.1936182] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The aim of this work is to study the content of phenolic compounds in P lentiscus leaves and their antioxidant effect. After extracting the phenolic compounds, fractionation by liquid/liquid partition with increasing polarity gives five extracts. Three of them (ButF, AqF and ButA) were found to have good antioxidant activity. Their IC50s for the inhibition of the free radical formation of DPPH are 1.76 µg/mL, 1.307 µg/ml, and 1.77 µg/mL, respectively. These values are very interesting, considering the effect of the powerful flavonoid quercetin, whose IC50 against DPPH is 1.53 µg/mL. These extracts are also active against xanthine oxidase (XO). The IC50s measured are 0.14 mg/mL, 0.186 mg/mL and 0.33 mg/mL for ButF, Aq F and ButAq F extract respectively, in comparison with allopurinol (0.44 mg/mL). A phytochemical analysis by LC/ESI-MS-MS was performed to explain the observed activities. The results show 22 peaks representing: flavanols, namely catechin, d-Gallocatechin, and gallocatechin gallate. The only flavone detected in the studied extracts was luteolin glucuronide and was found to be in higher amounts in butanolic extract (2,71mg/mL). The phenolic acids and derivatives were also identified in the extracts. A theoretical study was performed to deduce the specificity of the binding between the major compounds identified in the P. lentiscus extract and the xanthine oxidase enzyme using Schrödinger software. The docking procedure was validated using the extraction of ligands from the binding site. Their re-anchoring to the xanthine oxidase structure using quercetin and allopurinol was considered reference molecules. After docking, post-docking minimization was performed to achieve the best scoring poses with the MM-GBSA approach. The dGBind energy of MM-GBSA representing the binding energy of the receptor and the ligand was calculated based on molecular mechanics. Results reveal that β-Glucogallin compounds such as Digalloylquinic acid, Gallocatechin, and Myricetin-3-O rhamnoside are more active than allopurinol, with stronger Docking score (Gscore) and MM-GBSA dGBind.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Saliha Boucheffa
- Laboratory of Applied Biochemistry (LBA), Faculty of Nature and Life Sciences, Ferhat Abbas Sétif-1 University (UFAS1), Sétif, Algeria
| | - Widad Sobhi
- Laboratory of Applied Biochemistry (LBA), Faculty of Nature and Life Sciences, Ferhat Abbas Sétif-1 University (UFAS1), Sétif, Algeria.,Research Center of Biotechnology (CRBt), Constantine, Algeria
| | - Ayoub Attoui
- Laboratory of Applied Biochemistry (LBA), Faculty of Nature and Life Sciences, Ferhat Abbas Sétif-1 University (UFAS1), Sétif, Algeria.,Laboratoire des Matériaux Polymères Multiphasiques, LMPMP, Université Ferhat ABBAS Sétif-1, Sétif, Algeria
| | - Serkan Selli
- Department of Food Engineering, Faculty of Agriculture, Cukurova University, Adana, Turkey
| | - Hasim Kelebek
- Department of Food Engineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, Adana, Turkey
| | | | - Yacine Benguerba
- Laboratoire des Matériaux Polymères Multiphasiques, LMPMP, Université Ferhat ABBAS Sétif-1, Sétif, Algeria
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Characterization of the (Engineered) Branching Sucrase GtfZ-CD2 from Apilactobacillus kunkeei for Efficient Glucosylation of Benzenediol Compounds. Appl Environ Microbiol 2022; 88:e0103122. [PMID: 35924943 PMCID: PMC9397098 DOI: 10.1128/aem.01031-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Branching sucrases, a subfamily of Glycoside Hydrolase family (GH70), display transglycosidase activity using sucrose as donor substrate to catalyze glucosylation reaction in the presence of suitable acceptor substrates. In this study, the (α1→3) branching sucrase GtfZ-CD2 from Apilactobacillus kunkeei DSM 12361 was demonstrated to glucosylate benzenediol compounds (i.e., catechol, resorcinol, and hydroquinone) to form monoglucoside and diglucoside products. The production and yield of catechol glucosylated products were significantly higher than that of resorcinol and hydroquinone, revealing a preference for adjacent aromatic hydroxyl groups in glucosylation. Amino residues around acceptor substrate binding subsite +1 were targeted for semirational mutagenesis, yielding GtfZ-CD2 variants with improved resorcinol and hydroquinone glucosylation. Mutant L1560Y with improved hydroquinone mono-glucosylated product synthesis allowed enzymatic conversion of hydroquinone into α-arbutin. This study thus revealed the high potential of GH70 branching sucrases for glucosylating noncarbohydrate molecules. IMPORTANCE Glycosylation represents one of the most important ways to expand the diversity of natural products and improve their physico-chemical properties. Aromatic polyphenol compounds widely found in plants are reported to exhibit various remarkable biological activities; however, they generally suffer from low solubility and stability, which can be improved by glycosylation. Our present study on the glucosylation of benzenediol compounds by GH70 branching sucrase GtfZ-CD2 and its semirational engineering to improve the glucosylation efficiency provides insight into the mechanism of acceptor substrates binding and its glucosylation selectivity. The results demonstrate the potential of using branching sucrase as an effective enzymatic glucosylation tool.
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JEON SH, KIM DH, MONDAL SC, YANG KY, JEONG H, LEE BB, NAM SH. Oligosaccharide production from preserved yuzu juice using Lactobacillus sakei NY 518 and its prebiotic function. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.101221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - Duk-Hyun KIM
- Jeollanamdo Agricultural Research and Extension Services, Korea
| | | | | | | | - Bo-Bae LEE
- Jeollanamdo Agricultural Research and Extension Services, Korea
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Li X, Meng X, de Leeuw TC, Te Poele EM, Pijning T, Dijkhuizen L, Liu W. Enzymatic glucosylation of polyphenols using glucansucrases and branching sucrases of glycoside hydrolase family 70. Crit Rev Food Sci Nutr 2021:1-21. [PMID: 34907830 DOI: 10.1080/10408398.2021.2016598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Polyphenols exhibit various beneficial biological activities and represent very promising candidates as active compounds for food industry. However, the low solubility, poor stability and low bioavailability of polyphenols have severely limited their industrial applications. Enzymatic glycosylation is an effective way to improve the physicochemical properties of polyphenols. As efficient transglucosidases, glycoside hydrolase family 70 (GH70) glucansucrases naturally catalyze the synthesis of polysaccharides and oligosaccharides from sucrose. Notably, GH70 glucansucrases show broad acceptor substrate promiscuity and catalyze the glucosylation of a wide range of non-carbohydrate hydroxyl group-containing molecules, including benzenediol, phenolic acids, flavonoids and steviol glycosides. Branching sucrase enzymes, a newly established subfamily of GH70, are shown to possess a broader acceptor substrate binding pocket that acts efficiently for glucosylation of larger size polyphenols such as flavonoids. Here we present a comprehensive review of glucosylation of polyphenols using GH70 glucansucrase and branching sucrases. Their catalytic efficiency, the regioselectivity of glucosylation and the structure of generated products are described for these reactions. Moreover, enzyme engineering is effective for improving their catalytic efficiency and product specificity. The combined information provides novel insights on the glucosylation of polyphenols by GH70 glucansucrases and branching sucrases, and may promote their applications.
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Affiliation(s)
- Xiaodan Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, People's Republic of China
| | - Xiangfeng Meng
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, People's Republic of China
| | | | | | - Tjaard Pijning
- Biomolecular X-ray Crystallography, University of Groningen, Groningen, The Netherlands
| | | | - Weifeng Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, People's Republic of China
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Solubility of Luteolin and Other Polyphenolic Compounds in Water, Nonpolar, Polar Aprotic and Protic Solvents by Applying FTIR/HPLC. Processes (Basel) 2021. [DOI: 10.3390/pr9111952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In recent years, flavonoids have become a highly researched topic due to their health beneficial effects. Since flavonoids’ solubility plays a significant role in their use in pharmaceutical, food, biological, and chemical areas, the determination of suitable solvents is crucial. Fourier transform infrared (FTIR) analysis was used to characterize functional groups of several flavonoids and phenolic compounds, namely luteolin, hesperidin, quercetin, naringenin, gallic acid and tannic acid. Concentration dependence on transmittance was evaluated for these compounds in ethanol. Afterwards, luteolin was chosen as a model flavonoid, with its concentration correlated with transmittance using 15 solvents with different polarities. Luteolin solubility was further corroborated with high-performance liquid chromatography (HPLC). These results shed light on using FTIR as a semi-quantitative method for the initial screening of solvents and the solubility of different compounds while saving time and solvents. Hence, HPLC would only be needed as a final step for the most promising solvents.
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Molina M, Cioci G, Moulis C, Séverac E, Remaud-Siméon M. Bacterial α-Glucan and Branching Sucrases from GH70 Family: Discovery, Structure-Function Relationship Studies and Engineering. Microorganisms 2021; 9:microorganisms9081607. [PMID: 34442685 PMCID: PMC8398850 DOI: 10.3390/microorganisms9081607] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 01/12/2023] Open
Abstract
Glucansucrases and branching sucrases are classified in the family 70 of glycoside hydrolases. They are produced by lactic acid bacteria occupying very diverse ecological niches (soil, buccal cavity, sourdough, intestine, dairy products, etc.). Usually secreted by their producer organisms, they are involved in the synthesis of α-glucans from sucrose substrate. They contribute to cell protection while promoting adhesion and colonization of different biotopes. Dextran, an α-1,6 linked linear α-glucan, was the first microbial polysaccharide commercialized for medical applications. Advances in the discovery and characterization of these enzymes have remarkably enriched the available diversity with new catalysts. Research into their molecular mechanisms has highlighted important features governing their peculiarities thus opening up many opportunities for engineering these catalysts to provide new routes for the transformation of sucrose into value-added molecules. This article reviews these different aspects with the ambition to show how they constitute the basis for promising future developments.
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Yu H, Jeong H, Yang KY, Cho JY, Hong IK, Nam SH. Synthesis of ellagic acid glucoside using glucansucrase from Leuconostoc and characterization of this glucoside as a functional neuroprotective agent. AMB Express 2021; 11:108. [PMID: 34287737 PMCID: PMC8295447 DOI: 10.1186/s13568-021-01265-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/03/2021] [Indexed: 02/08/2023] Open
Abstract
Ellagic acid glucoside was synthesized via transglucosylation using sucrose and glucansucrase derived from Leuconostoc mesenteroides B-512 FMCM. After such enzymatic synthesis, the product was purified by 50% ethyl acetate fraction and C18 column chromatography. Modification of ellagic acid glucoside was verified by LC–MS/MS at m/z 485.1 (M + Na)− and m/z 531.1 (M + 3Na)−. The yield of ellagic acid glucoside was 69% (3.47 mM) by response surface methodology using 150 mM sucrose, 300 mU/mL glucansucrase, and 5 mM ellagic acid. The synthesized ellagic acid glucoside showed improved water solubility, up to 58% higher brain nerve cell (SH-SY5Y) protective effect, threefold higher cortisol reducing effect, and fourfold stronger inhibitory effect on acetylcholinesterase (AChE) than ellagic acid. These results indicate that ellagic acid glucoside could be used as a neuroprotective agent.
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Nolte J, Kempa A, Hochgürtel M, Schörken U. Glucansucrases from lactic acid bacteria as biocatalysts for multi-ring catechol glucosylation. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1784882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Johannes Nolte
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
- Vetter Pharma-Fertigung GmbH & Co. KG, Ravensburg, Germany
| | - Alexander Kempa
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
- R&R Extrakte GmbH, Köln, Germany
| | - Matthias Hochgürtel
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
| | - Ulrich Schörken
- Faculty of Applied Natural Sciences, TH Köln – Campus Leverkusen, Leverkusen, Germany
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Mustafa SM, Chua LS, El-Enshasy HA, Abd Majid FA, Hanapi SZ. Kinetic profile and anti-diabetic potential of fermented Punica granatum juice using Lactobacillus casei. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Jung YS, Kim YJ, Kim AT, Jang D, Kim MS, Seo DH, Nam TG, Rha CS, Park CS, Kim DO. Enrichment of Polyglucosylated Isoflavones from Soybean Isoflavone Aglycones Using Optimized Amylosucrase Transglycosylation. Molecules 2020; 25:E181. [PMID: 31906359 PMCID: PMC6982859 DOI: 10.3390/molecules25010181] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/23/2019] [Accepted: 12/30/2019] [Indexed: 12/26/2022] Open
Abstract
Isoflavones in soybeans are well-known phytoestrogens. Soy isoflavones present in conjugated forms are converted to aglycone forms during processing and storage. Isoflavone aglycones (IFAs) of soybeans in human diets have poor solubility in water, resulting in low bioavailability and bioactivity. Enzyme-mediated glycosylation is an efficient and environmentally friendly way to modify the physicochemical properties of soy IFAs. In this study, we determined the optimal reaction conditions for Deinococcus geothermalis amylosucrase-mediated α-1,4 glycosylation of IFA-rich soybean extract to improve the bioaccessibility of IFAs. The conversion yields of soy IFAs were in decreasing order as follows: genistein > daidzein > glycitein. An enzyme quantity of 5 U and donor:acceptor ratios of 1000:1 (glycitein) and 400:1 (daidzein and genistein) resulted in high conversion yield (average 95.7%). These optimal reaction conditions for transglycosylation can be used to obtain transglycosylated IFA-rich functional ingredients from soybeans.
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Affiliation(s)
- Young Sung Jung
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.S.J.); (A.T.K.)
| | - Ye-Jin Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.-J.K.); (D.J.); (C.-S.P.)
| | - Aaron Taehwan Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.S.J.); (A.T.K.)
| | - Davin Jang
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.-J.K.); (D.J.); (C.-S.P.)
| | - Mi-Seon Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.-J.K.); (D.J.); (C.-S.P.)
| | - Dong-Ho Seo
- Department of Food Science and Technology, Jeonbuk National University, Jeonju 54896, Korea;
| | - Tae Gyu Nam
- Food Analysis Center, Korea Food Research Institute, Wanju 55365, Korea;
| | - Chan-Su Rha
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.S.J.); (A.T.K.)
| | - Cheon-Seok Park
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.-J.K.); (D.J.); (C.-S.P.)
| | - Dae-Ok Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.S.J.); (A.T.K.)
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea; (Y.-J.K.); (D.J.); (C.-S.P.)
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Sordon S, Popłoński J, Tronina T, Huszcza E. Regioselective O-glycosylation of flavonoids by fungi Beauveria bassiana, Absidia coerulea and Absidia glauca. Bioorg Chem 2019; 93:102750. [DOI: 10.1016/j.bioorg.2019.01.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/11/2019] [Accepted: 01/18/2019] [Indexed: 01/02/2023]
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Klingel T, Bindereif B, Hadamjetz M, Fischer A, van der Schaaf US, Wefers D. Enzymatic Synthesis and Characterization of Mono-, Oligo-, and Polyglucosylated Conjugates of Caffeic Acid and Gallic Acid. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13108-13118. [PMID: 31738546 DOI: 10.1021/acs.jafc.9b04495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glucansucrases can be used to glucosylate various plant-derived phenolic compounds by using sucrose as donor substrate. We applied Lactobacillus reuteri TMW 1.106 dextransucrase to glucosylate the acceptor substrates caffeic acid and gallic acid. Subsequently, monoglucosylated and in particular oligo- and polyglucosylated conjugates were characterized by using different chromatographic techniques and two-dimensional NMR spectroscopy. Both acceptors were substituted at positions O3 and O4. Under the conditions used, two monoglucosylated products were formed for caffeic acid, whereas only one O3-monosubstituted conjugate was detected for gallic acid. However, both acceptors resulted in O4-substituted oligo- and polyglucosylated conjugates, the amount of which was higher from gallic acid than from caffeic acid. Profile analysis tensiometry suggested that, in contrast to unmodified dextrans, oligo- and polymeric glucoconjugates of gallic acid are highly interfacially active. Overall, we provide the first detailed characterization of enzymatically conjugated oligo- and polymeric dextrans, which may have further potential as functional ingredients.
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Ruprecht C, Bönisch F, Ilmberger N, Heyer TV, Haupt ET, Streit WR, Rabausch U. High level production of flavonoid rhamnosides by metagenome-derived Glycosyltransferase C in Escherichia coli utilizing dextrins of starch as a single carbon source. Metab Eng 2019; 55:212-219. [DOI: 10.1016/j.ymben.2019.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/14/2019] [Accepted: 07/07/2019] [Indexed: 01/09/2023]
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Klingel T, Hadamjetz M, Fischer A, Wefers D. Glucosylation of flavonoids and flavonoid glycosides by mutant dextransucrase from Lactobacillus reuteri TMW 1.106. Carbohydr Res 2019; 483:107741. [DOI: 10.1016/j.carres.2019.107741] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/09/2019] [Accepted: 07/09/2019] [Indexed: 02/08/2023]
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Ricci A, Cirlini M, Calani L, Bernini V, Neviani E, Del Rio D, Galaverna G, Lazzi C. In vitro metabolism of elderberry juice polyphenols by lactic acid bacteria. Food Chem 2019; 276:692-699. [DOI: 10.1016/j.foodchem.2018.10.046] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 10/28/2022]
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19
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Pham H, Pijning T, Dijkhuizen L, van Leeuwen SS. Mutational Analysis of the Role of the Glucansucrase Gtf180-ΔN Active Site Residues in Product and Linkage Specificity with Lactose as Acceptor Substrate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12544-12554. [PMID: 30396274 PMCID: PMC6328278 DOI: 10.1021/acs.jafc.8b04486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 06/08/2023]
Abstract
Glucansucrase Gtf180-ΔN from Lactobacillus reuteri uses lactose as acceptor substrate to synthesize five glucosylated lactose molecules (F1-F5) with a degree of polymerization (DP) of 3-4 (GL34) and with (α1→2)/(α1→3)/(α1→4) glycosidic linkages. Q1140/W1065/N1029 mutations significantly changed the GL34 product ratios. Q1140 mutations clearly decreased F3 3'-glc-lac with an (α1→3) linkage and increased F4 4',2-glc-lac with (α1→4)/(α1→2) linkages. Formation of F2 2-glc-lac with an (α1→2) linkage and F4 was negatively affected in most W1065 and N1029 mutants, respectively. Mutant N1029G synthesized four new products with additional (α1→3)-linked glucosyl moieties (2xDP4 and 2xDP5). Sucrose/lactose strongly reduced Gtf180-ΔN hydrolytic activity and increased transferase activity of Gtf180-ΔN and mutant N1029G, in comparison to activity with sucrose alone. N1029/W1065/Q1140 thus are key determinants of Gtf180-ΔN linkage and product specificity in the acceptor reaction with lactose. Mutagenesis of key residues in Gtf180-ΔN may allow synthesis of tailor-made mixtures of novel lactose-derived oligosaccharides with potential applications as prebiotic compounds in food/feed and in pharmacy/medicine.
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Affiliation(s)
- Hien Pham
- Microbial
Physiology, Groningen Biomolecular Sciences and Biotechnology Institute
(GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Tjaard Pijning
- Biophysical
Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute
(GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Lubbert Dijkhuizen
- Microbial
Physiology, Groningen Biomolecular Sciences and Biotechnology Institute
(GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Sander S. van Leeuwen
- Microbial
Physiology, Groningen Biomolecular Sciences and Biotechnology Institute
(GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
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20
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Jang SW, Cho CH, Jung YS, Rha C, Nam TG, Kim DO, Lee YG, Baek NI, Park CS, Lee BH, Lee SY, Shin HS, Seo DH. Enzymatic synthesis of α-flavone glucoside via regioselective transglucosylation by amylosucrase from Deinococcus geothermalis. PLoS One 2018; 13:e0207466. [PMID: 30452462 PMCID: PMC6242681 DOI: 10.1371/journal.pone.0207466] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/31/2018] [Indexed: 12/19/2022] Open
Abstract
α-Flavone glycosides have beneficial properties for applications in the pharmaceutical, cosmetic, and food industries. However, their chemical syntheses are often limited by a low efficiency or scarcity of substrates. In this study, α-flavone glucosides were enzymatically synthesized by amylosucrase from Deinococcus geothermalis (DGAS) using sucrose and various flavones as a donor for glucosyl units and acceptors, respectively. Luteolin was the most effective acceptor in the transglucosylation reaction using DGAS among nine flavone materials (apigenin, chrysin, 6,7-dihydroxyflavone, homoorientin, 7-hydroxyflavone, isorhoifolin, luteolin, luteolin-3′,7-diglucoside, and orientin). The highest production yield of luteolin glucoside was 86%, with a 7:1 molar ratio of donor to acceptor molecules, in 50 mM Tris-HCl buffer (pH 7) at 37°C for 24 h using 2 U of DGAS. The synthesized luteolin glucoside was identified as luteolin-4′-O-α-D-glucopyranoside with a glucose molecule linked to the C-4′ position on the B-ring of luteolin via an α-glucosidic bond, as determined by 1H and 13C nuclear magnetic resonance. This result clearly confirmed that the glucosylated luteolin was successfully synthesized by DGAS and it can be applied as a functional ingredient. Furthermore, this approach using DGAS has the potential to be utilized for the synthesis of various glucosylated products using different types of polyphenols to enhance their functionalities.
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Affiliation(s)
- Se-Won Jang
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
- Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, Seongnam, Republic of Korea
| | - Chi Heung Cho
- Research Group of Industrial Technology, World Institute of Kimchi, Gwangju, Republic of Korea
| | - Young-Sung Jung
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Chansu Rha
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Tae-Gyu Nam
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Dae-Ok Kim
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Yeong-Geun Lee
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Nam-In Baek
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Cheon-Seok Park
- Graduate School of Biotechnology and Institute of Life Science and Resources, Kyung Hee University, Yongin, Republic of Korea
| | - Byung-Hoo Lee
- Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, Seongnam, Republic of Korea
| | - So-Young Lee
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Hee Soon Shin
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
| | - Dong-Ho Seo
- Research Group of Healthcare, Korea Food Research Institute, Wanju, Republic of Korea
- * E-mail:
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21
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Malbert Y, Moulis C, Brison Y, Morel S, André I, Remaud-Simeon M. Engineering a branching sucrase for flavonoid glucoside diversification. Sci Rep 2018; 8:15153. [PMID: 30310109 PMCID: PMC6181985 DOI: 10.1038/s41598-018-33394-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 09/21/2018] [Indexed: 01/01/2023] Open
Abstract
Enzymatic glycosylation of flavonoids is an efficient mean to protect aglycons against degradation while enhancing their solubility, life time and, by extension, their bioavailability which is critical for most of their applications in health care. To generate a valuable enzymatic platform for flavonoid glucosylation, an α-1,2 branching sucrase belonging to the family 70 of glycoside-hydrolases was selected as template and subsequently engineered. Two libraries of variants targeting pair-wise mutations inferred by molecular docking simulations were generated and screened for quercetin glucosylation using sucrose as a glucosyl donor. Only a limited number of variants (22) were retained on the basis of quercetin conversion and product profile. Their acceptor promiscuity towards five other flavonoids was subsequently assessed, and the automated screening effort revealed variants showing remarkable ability for luteolin, morin and naringenin glucosylation with conversion ranging from 30% to 90%. Notably, naringenin and morin, a priori considered as recalcitrant compounds to glucosylation using this α-transglucosylases, could also be modified. The approach reveals the potential of small platforms of engineered GH70 α-transglucosylases and opens up the diversity of flavonoid glucosides to molecular structures inaccessible yet.
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Affiliation(s)
- Yannick Malbert
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Claire Moulis
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Yoann Brison
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Sandrine Morel
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Isabelle André
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France
| | - Magali Remaud-Simeon
- Laboratoire d'Ingénierie des Systèmes Biologiques et Procédés, LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France. 135, avenue de Rangueil, F-31077, Toulouse, cedex 04, France.
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22
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Schmölzer K, Lemmerer M, Nidetzky B. Glycosyltransferase cascades made fit for chemical production: Integrated biocatalytic process for the natural polyphenol C-glucoside nothofagin. Biotechnol Bioeng 2018; 115:545-556. [PMID: 29131308 DOI: 10.1002/bit.26491] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/31/2017] [Accepted: 11/06/2017] [Indexed: 12/17/2023]
Abstract
Glycosyltransferase cascades are promising tools of biocatalysis for natural product glycosylation, but their suitability for actual production remains to be shown. Here, we demonstrate at a scale of 100 g isolated product the integrated biocatalytic production of nothofagin, the natural 3'-C-β-D-glucoside of the polyphenol phloretin. A parallel reaction cascade involving coupled C-glucosyltransferase and sucrose synthase was optimized for the one-pot glucosylation of phloretin from sucrose via an UDP/UDP-glucose shuttle. Inclusion complexation with the highly water soluble 2-hydroxypropyl-β-cyclodextrin pushed the phloretin solubility to its upper practical limit (∼120 mM) and so removed the main bottleneck on an efficient synthesis of nothofagin. The biotransformation thus intensified had excellent performance metrics of 97% yield and ∼50 gproduct /L at a space-time yield of 3 g/L/hr. The UDP-glucose was regenerated up to ∼220 times. A scalable downstream process for efficient recovery of nothofagin (≥95% purity; ≥65% yield) was developed. A tailored anion-exchange chromatography at pH 8.5 was used for capture and initial purification of the product. Recycling of the 2-hydroxypropyl-β-cyclodextrin would also be possible at this step. Product precipitation at a lowered pH of 6.0 and re-dissolution in acetone effectively replaced desalting by size exclusion chromatography in the final step of nothofagin purification. This study therefore, reveals the potential for process intensification in the glycosylation of polyphenol acceptors by glycosyltransferase cascades. It demonstrates that, with up- and downstream processing carefully optimized and suitably interconnected, a powerful biocatalytic technology becomes available for the production of an important class of glycosides difficult to prepare otherwise.
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Affiliation(s)
| | | | - Bernd Nidetzky
- Austrian Centre of Industrial Biotechnology, Graz, Austria
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Graz, Austria
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23
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Perrone D, Fuggetta MP, Ardito F, Cottarelli A, De Filippis A, Ravagnan G, De Maria S, Lo Muzio L. Resveratrol (3,5,4'-trihydroxystilbene) and its properties in oral diseases. Exp Ther Med 2017; 14:3-9. [PMID: 28672886 DOI: 10.3892/etm.2017.4472] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 12/19/2016] [Indexed: 02/07/2023] Open
Abstract
Health promotion strategies and lifestyle changes are important in disease prevention. Oral health has received a large amount of attention previously as it is a fundamental component of general health and it contributes to the quality of life. Therefore, the study of associations between diet, health and the presence of bioactive compounds in food is receiving a substantial amount of attention. In the present review the effects and targets of a natural polyohenolic stilbenoid compound; resveratrol (3,5,4'-trihydroxystilbene; RSV) is assessed, and the future prospects for RSV in promoting oral health are considered. RSV is a phytoalexin, synthesized by a wide range of plants and abundantly extracted in grape skin, it has been purported to exert a multiplicity of anti-inflammatory, anti-viral, anti-microbial, estrogenic, anticancer, cardioprotective, neuroprotective and immunomodulatory functions. In this review, following an introduction documenting the biochemistry of RSV and RSV glucosides, the bioavailability and pharmacokinetics of RSV are described. Considering its multiple properties, the present review has focused on the potential benefits of RSV as an antioxidant and chemopreventive agent.
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Affiliation(s)
- Donatella Perrone
- Department of Clinical and Experimental Medicine, University of Foggia, I-71122 Foggia, Italy
| | - Maria Pia Fuggetta
- Institute of Translational Pharmacology, CNR-Area Torvergata, I-00133 Rome, Italy
| | - Fatima Ardito
- Department of Clinical and Experimental Medicine, University of Foggia, I-71122 Foggia, Italy
| | - Andrea Cottarelli
- Institute of Translational Pharmacology, CNR-Area Torvergata, I-00133 Rome, Italy
| | - Anna De Filippis
- Department of Experimental Medicine, Second University of Napoli, Napoli, I-80131 Naples, Italy
| | - Giampietro Ravagnan
- Glures srl. Operative Unit-Biochemical and Biophysical Department, I-80138 Naples, Italy
| | - Salvatore De Maria
- Glures srl. Operative Unit-Biochemical and Biophysical Department, I-80138 Naples, Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, I-71122 Foggia, Italy
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24
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Moulis C, André I, Remaud-Simeon M. GH13 amylosucrases and GH70 branching sucrases, atypical enzymes in their respective families. Cell Mol Life Sci 2016; 73:2661-79. [PMID: 27141938 PMCID: PMC11108324 DOI: 10.1007/s00018-016-2244-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 04/22/2016] [Indexed: 12/22/2022]
Abstract
Amylosucrases and branching sucrases are α-retaining transglucosylases found in the glycoside-hydrolase families 13 and 70, respectively, of the clan GH-H. These enzymes display unique activities in their respective families. Using sucrose as substrate and without mediation of nucleotide-activated sugars, amylosucrase catalyzes the formation of an α-(1 → 4) linked glucan that resembles amylose. In contrast, the recently discovered branching sucrases are unable to catalyze polymerization of glucosyl units as they are rather specific for dextran branching through α-(1 → 2) or α-(1 → 3) branching linkages depending on the enzyme regiospecificity. In addition, GH13 amylosucrases and GH70 branching sucrases are naturally promiscuous and can glucosylate different types of acceptor molecules including sugars, polyols, or flavonoids. Amylosucrases have been the most investigated glucansucrases, in particular to control product profiles or to successfully develop tailored α-transglucosylases able to glucosylate various molecules of interest, for example, chemically protected carbohydrates that are planned to enter in chemoenzymatic pathways. The structural traits of these atypical enzymes will be described and compared, and an overview of the potential of natural or engineered enzymes for glycodiversification and chemoenzymatic synthesis will be highlighted.
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Affiliation(s)
- Claire Moulis
- Université de Toulouse, INSA, UPS, INP, LISBP, 135 Avenue de Rangueil, 31077, Toulouse, France
- CNRS, UMR5504, 31400, Toulouse, France
- INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, 31400, Toulouse, France
| | - Isabelle André
- Université de Toulouse, INSA, UPS, INP, LISBP, 135 Avenue de Rangueil, 31077, Toulouse, France
- CNRS, UMR5504, 31400, Toulouse, France
- INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, 31400, Toulouse, France
| | - Magali Remaud-Simeon
- Université de Toulouse, INSA, UPS, INP, LISBP, 135 Avenue de Rangueil, 31077, Toulouse, France.
- CNRS, UMR5504, 31400, Toulouse, France.
- INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, 31400, Toulouse, France.
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25
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Devlamynck T, Te Poele EM, Meng X, van Leeuwen SS, Dijkhuizen L. Glucansucrase Gtf180-ΔN of Lactobacillus reuteri 180: enzyme and reaction engineering for improved glycosylation of non-carbohydrate molecules. Appl Microbiol Biotechnol 2016; 100:7529-39. [PMID: 27052379 PMCID: PMC4980424 DOI: 10.1007/s00253-016-7476-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/08/2016] [Accepted: 03/15/2016] [Indexed: 12/24/2022]
Abstract
Glucansucrases have a broad acceptor substrate specificity and receive increased attention as biocatalysts for the glycosylation of small non-carbohydrate molecules using sucrose as donor substrate. However, the main glucansucrase-catalyzed reaction results in synthesis of α-glucan polysaccharides from sucrose, and this strongly impedes the efficient glycosylation of non-carbohydrate molecules and complicates downstream processing of glucosylated products. This paper reports that suppressing α-glucan synthesis by mutational engineering of the Gtf180-ΔN enzyme of Lactobacillus reuteri 180 results in the construction of more efficient glycosylation biocatalysts. Gtf180-ΔN mutants (L938F, L981A, and N1029M) with an impaired α-glucan synthesis displayed a substantial increase in monoglycosylation yields for several phenolic and alcoholic compounds. Kinetic analysis revealed that these mutants possess a higher affinity for the model acceptor substrate catechol but a lower affinity for its mono-α-d-glucoside product, explaining the improved monoglycosylation yields. Analysis of the available high resolution 3D crystal structure of the Gtf180-ΔN protein provided a clear understanding of how mutagenesis of residues L938, L981, and N1029 impaired α-glucan synthesis, thus yielding mutants with an improved glycosylation potential.
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Affiliation(s)
- Tim Devlamynck
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
- Centre for Industrial Biotechnology and Biocatalysis, Department of Biochemical and Microbial Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Evelien M Te Poele
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Xiangfeng Meng
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Sander S van Leeuwen
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Lubbert Dijkhuizen
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
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26
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Xu L, Qi T, Xu L, Lu L, Xiao M. Recent progress in the enzymatic glycosylation of phenolic compounds. J Carbohydr Chem 2016. [DOI: 10.1080/07328303.2015.1137580] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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27
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Liang C, Zhang Y, Jia Y, Wenzhao Wang, Li Y, Lu S, Jin JM, Tang SY. Engineering a Carbohydrate-processing Transglycosidase into Glycosyltransferase for Natural Product Glycodiversification. Sci Rep 2016; 6:21051. [PMID: 26869143 PMCID: PMC4751530 DOI: 10.1038/srep21051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 01/18/2016] [Indexed: 01/12/2023] Open
Abstract
Glycodiversification broadens the scope of natural product-derived drug discovery. The acceptor substrate promiscuity of glucosyltransferase-D (GTF-D), a carbohydrate-processing enzyme from Streptococcus mutans, was expanded by protein engineering. Mutants in a site-saturation mutagenesis library were screened on the fluorescent substrate 4-methylumbelliferone to identify derivatives with improved transglycosylation efficiency. In comparison to the wild-type GTF-D enzyme, mutant M4 exhibited increased transglycosylation capabilities on flavonoid substrates including catechin, genistein, daidzein and silybin, using the glucosyl donor sucrose. This study demonstrated the feasibility of developing natural product glycosyltransferases by engineering transglycosidases that use donor substrates cheaper than NDP-sugars, and gave rise to a series of α-glucosylated natural products that are novel to the natural product reservoir. The solubility of the α-glucoside of genistein and the anti-oxidant capability of the α-glucoside of catechin were also studied.
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Affiliation(s)
- Chaoning Liang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi Zhang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yan Jia
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
| | - Wenzhao Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Youhai Li
- School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, China
| | - Shikun Lu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing 100048, China
- School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, China
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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28
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Overwin H, González M, Méndez V, Cárdenas F, Seeger M, Hofer B. Stepwise conversion of flavonoids by engineered dioxygenases and dehydrogenase: Characterization of novel biotransformation products. Enzyme Microb Technol 2015; 81:63-71. [DOI: 10.1016/j.enzmictec.2015.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/28/2015] [Accepted: 08/05/2015] [Indexed: 10/23/2022]
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29
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Flavonoid glucosylation by non-Leloir glycosyltransferases: formation of multiple derivatives of 3,5,7,3′,4′-pentahydroxyflavane stereoisomers. Appl Microbiol Biotechnol 2015; 99:9565-76. [DOI: 10.1007/s00253-015-6760-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/24/2015] [Accepted: 06/04/2015] [Indexed: 12/26/2022]
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30
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Li S, Yue J, Zhou W, Li L. An investigation into the preparation, characterization and antioxidant activity of puerarin/cyclodextrin inclusion complexes. J INCL PHENOM MACRO 2015. [DOI: 10.1007/s10847-015-0516-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Iridoids, flavonoids, and monoterpene diglycoside from the roots of Triosteum himalayanum Wall. BIOCHEM SYST ECOL 2015. [DOI: 10.1016/j.bse.2014.12.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Huynh NT, Van Camp J, Smagghe G, Raes K. Improved release and metabolism of flavonoids by steered fermentation processes: a review. Int J Mol Sci 2014; 15:19369-88. [PMID: 25347275 PMCID: PMC4264116 DOI: 10.3390/ijms151119369] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/16/2014] [Accepted: 10/20/2014] [Indexed: 01/17/2023] Open
Abstract
This paper provides an overview on steered fermentation processes to release phenolic compounds from plant-based matrices, as well as on their potential application to convert phenolic compounds into unique metabolites. The ability of fermentation to improve the yield and to change the profile of phenolic compounds is mainly due to the release of bound phenolic compounds, as a consequence of the degradation of the cell wall structure by microbial enzymes produced during fermentation. Moreover, the microbial metabolism of phenolic compounds results in a large array of new metabolites through different bioconversion pathways such as glycosylation, deglycosylation, ring cleavage, methylation, glucuronidation and sulfate conjugation, depending on the microbial strains and substrates used. A whole range of metabolites is produced, however metabolic pathways related to the formation and bioactivities, and often quantification of the metabolites are highly underinvestigated. This strategy could have potential to produce extracts with a high-added value from plant-based matrices.
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Affiliation(s)
- Nguyen Thai Huynh
- Department of Industrial Biological Sciences, Faculty of Bioscience Engineering, Ghent University-Campus Kortrijk, Graaf Karel de Goedelaan 5, 8500 Kortrijk, Belgium.
| | - John Van Camp
- Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Guy Smagghe
- Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Katleen Raes
- Department of Industrial Biological Sciences, Faculty of Bioscience Engineering, Ghent University-Campus Kortrijk, Graaf Karel de Goedelaan 5, 8500 Kortrijk, Belgium.
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Malbert Y, Pizzut-Serin S, Massou S, Cambon E, Laguerre S, Monsan P, Lefoulon F, Morel S, André I, Remaud-Simeon M. Extending the Structural Diversity of α-Flavonoid Glycosides with Engineered Glucansucrases. ChemCatChem 2014. [DOI: 10.1002/cctc.201402144] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Plaza M, Pozzo T, Liu J, Gulshan Ara KZ, Turner C, Nordberg Karlsson E. Substituent effects on in vitro antioxidizing properties, stability, and solubility in flavonoids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:3321-33. [PMID: 24650232 DOI: 10.1021/jf405570u] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Antioxidants are widely used by humans, both as dietary supplements and as additives to different types of products. The desired properties of an antioxidant often include a balance between the antioxidizing capacity, stability, and solubility. This review focuses on flavonoids, which are naturally occurring antioxidants, and different common substituent groups on flavonoids and how these affect the properties of the molecules in vitro. Hydroxyl groups on flavonoids are both important for the antioxidizing capacity and key points for further modification resulting in O-methylation, -glycosylation, -sulfation, or -acylation. The effects of O-glycosylation and acylation are discussed as these types of substitutions have been most explored in vitro concerning antioxidizing properties as well as stability and solubility. Possibilities to control the properties by enzymatic acylation and glycosylation are also reviewed, showing that depending on the choice of enzyme and substrate, regioselective results can be obtained, introducing possibilities for more targeted production of antioxidants with predesigned properties.
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Affiliation(s)
- Merichel Plaza
- Department of Chemistry, Centre for Analysis and Synthesis, and ‡Department of Chemistry, Biotechnology, Lund University , P.O. Box 124, SE-221 00 Lund, Sweden
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Affiliation(s)
- Zan-Shan Xu
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
| | - Gui-Xin Chou
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
| | - Zheng-Tao Wang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
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Bivolarski V, Vasileva T, Bozov P, Iliev I. Influence of terpenoids and acarbose on glycosyltransferases produced by strain Leuconostoc mesenteroides URE 13. BIOTECHNOL BIOTEC EQ 2014; 28:342-349. [PMID: 26019519 PMCID: PMC4434044 DOI: 10.1080/13102818.2014.910329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 11/19/2013] [Indexed: 10/31/2022] Open
Abstract
A study of the influence of different plant terpenoids and amino sugar derivate acarbose on the activity of glycosyltransferase complex and purified dextransucrase from Leuconostoc mesenteroides URE 13 strain was carried out. All the tested terpenoids showed an inhibitory effect on glycosyltransferases from strain URE 13 at concentration 0.34 mmol. Out of all studied diterpenoids splendidin showed the strongest inhibitory effect decreasing the activity of both glycosyltransferase complex and dextransucrase with 70% and 90%, respectively. The triterpenoid ursolic showed the second strongest inhibitory effect as the enzyme complex and dextransucrase from strain URE 13 retain 27% and 13% of their initial enzyme activity. Despite the higher degree of inhibition of purified dextransucrase, compared to the enzyme complex, a complete inhibition of the enzyme was not observed at the highest used terpenoid concentration (3.42 mmol). When acarbose was used as an inhibitor, a complete inhibition of dextransucrase was observed at concentration of 6.9 mmol, while the enzyme complex retained 8% of its enzyme activity. Ki values of 0.28 mmol for splendidin, 0.37 mmol for ursolic acid and 0.29 mmol for acarbose were determined from the kinetic studies of purified dextransucrase.
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Affiliation(s)
- Veselin Bivolarski
- Department of Biochemistry and Microbiology, Plovdiv University, Plovdiv, Bulgaria
| | - Tonka Vasileva
- Department of Biochemistry and Microbiology, Plovdiv University, Plovdiv, Bulgaria
| | - Petko Bozov
- Department of Biochemistry and Microbiology, Plovdiv University, Plovdiv, Bulgaria
| | - Ilia Iliev
- Department of Biochemistry and Microbiology, Plovdiv University, Plovdiv, Bulgaria
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37
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De Winter K, Desmet T, Devlamynck T, Van Renterghem L, Verhaeghe T, Pelantová H, Křen V, Soetaert W. Biphasic Catalysis with Disaccharide Phosphorylases: Chemoenzymatic Synthesis of α-d-Glucosides Using Sucrose Phosphorylase. Org Process Res Dev 2014. [DOI: 10.1021/op400302b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Karel De Winter
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Tom Desmet
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Tim Devlamynck
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Lisa Van Renterghem
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Tom Verhaeghe
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | | | | | - Wim Soetaert
- Centre
for Industrial Biotechnology and Biocatalysis, Department of Biochemical
and Microbial Technology, Faculty of Biosciences Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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Brison Y, Laguerre S, Lefoulon F, Morel S, Monties N, Potocki-Véronèse G, Monsan P, Remaud-Simeon M. Branching pattern of gluco-oligosaccharides and 1.5kDa dextran grafted by the α-1,2 branching sucrase GBD-CD2. Carbohydr Polym 2013; 94:567-76. [DOI: 10.1016/j.carbpol.2013.01.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 01/20/2013] [Accepted: 01/21/2013] [Indexed: 12/01/2022]
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Bejar W, Gabriel V, Amari M, Morel S, Mezghani M, Maguin E, Fontagné-Faucher C, Bejar S, Chouayekh H. Characterization of glucansucrase and dextran from Weissella sp. TN610 with potential as safe food additives. Int J Biol Macromol 2013; 52:125-32. [DOI: 10.1016/j.ijbiomac.2012.09.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 09/07/2012] [Accepted: 09/17/2012] [Indexed: 10/27/2022]
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Liu B, Zhao J, Liu Y, Zhu X, Zeng J. Physicochemical [corrected] properties of the inclusion complex of puerarin and glucosyl-β-cyclodextrin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:12501-12507. [PMID: 23215052 DOI: 10.1021/jf304447x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Puerarin is a natural isoflavone, found in the Chinese medicinal plant Ge-gen, with many reported health-promoting properties. However, its low water solubility impedes its application in pharmaceutical and functional food products. This study explores the formation of inclusion complex between puerarin and glucosyl-β-cyclodextrin (G-β-CD) to improve the aqueous solubility of puerarin. The complex was prepared by mixing an equal molar mixture of puerarin and G-β-CD for 24 h, followed by freeze-drying. The obtained complex was analyzed by ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, X-ray diffractometry, and proton nuclear magnetic resonance spectroscopy. Results showed clearly that the process led to the formation of a supramolecular complex in which the guest molecule, puerarin, was entrapped inside the cavity of the host, G-β-CD. The close association between puerarin and G-β-CD resulted in changes in some of the characteristic spectral, phase-transitional, and morphological properties of puerarin.
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Affiliation(s)
- Benguo Liu
- School of Food Science, Henan Institute of Science and Technology , Xinxiang 453003, People's Republic of China
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41
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Desmet T, Soetaert W, Bojarová P, Křen V, Dijkhuizen L, Eastwick-Field V, Schiller A. Enzymatic glycosylation of small molecules: challenging substrates require tailored catalysts. Chemistry 2012; 18:10786-801. [PMID: 22887462 DOI: 10.1002/chem.201103069] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Glycosylation can significantly improve the physicochemical and biological properties of small molecules like vitamins, antibiotics, flavors, and fragrances. The chemical synthesis of glycosides is, however, far from trivial and involves multistep routes that generate lots of waste. In this review, biocatalytic alternatives are presented that offer both stricter specificities and higher yields. The advantages and disadvantages of different enzyme classes are discussed and illustrated with a number of recent examples. Progress in the field of enzyme engineering and screening are expected to result in new applications of biocatalytic glycosylation reactions in various industrial sectors.
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Affiliation(s)
- Tom Desmet
- University of Ghent, Centre for Industrial Biotechnology and Biocatalysis, Gent, Belgium
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Leemhuis H, Pijning T, Dobruchowska JM, van Leeuwen SS, Kralj S, Dijkstra BW, Dijkhuizen L. Glucansucrases: three-dimensional structures, reactions, mechanism, α-glucan analysis and their implications in biotechnology and food applications. J Biotechnol 2012; 163:250-72. [PMID: 22796091 DOI: 10.1016/j.jbiotec.2012.06.037] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 06/13/2012] [Accepted: 06/18/2012] [Indexed: 12/26/2022]
Abstract
Glucansucrases are extracellular enzymes that synthesize a wide variety of α-glucan polymers and oligosaccharides, such as dextran. These carbohydrates have found numerous applications in food and health industries, and can be used as pure compounds or even be produced in situ by generally regarded as safe (GRAS) lactic acid bacteria in food applications. Research in the recent years has resulted in big steps forward in the understanding and exploitation of the biocatalytic potential of glucansucrases. This paper provides an overview of glucansucrase enzymes, their recently elucidated crystal structures, their reaction and product specificity, and the structural analysis and applications of α-glucan polymers. Furthermore, we discuss key developments in the understanding of α-glucan polymer formation based on the recently elucidated three-dimensional structures of glucansucrase proteins. Finally we discuss the (potential) applications of α-glucans produced by lactic acid bacteria in food and health related industries.
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Affiliation(s)
- Hans Leemhuis
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute-GBB, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
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Ojima T, Aizawa K, Saburi W, Yamamoto T. α-Glucosylated 6-gingerol: chemoenzymatic synthesis using α-glucosidase from Halomonas sp. H11, and its physical properties. Carbohydr Res 2012; 354:59-64. [DOI: 10.1016/j.carres.2012.03.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/09/2012] [Accepted: 03/10/2012] [Indexed: 11/27/2022]
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Leemhuis H, Pijning T, Dobruchowska JM, Dijkstra BW, Dijkhuizen L. Glycosidic bond specificity of glucansucrases: on the role of acceptor substrate binding residues. BIOCATAL BIOTRANSFOR 2012. [DOI: 10.3109/10242422.2012.676301] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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45
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Daudé D, Remaud-Siméon M, André I. Sucrose analogs: an attractive (bio)source for glycodiversification. Nat Prod Rep 2012; 29:945-60. [DOI: 10.1039/c2np20054f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Aerts D, Verhaeghe TF, Roman BI, Stevens CV, Desmet T, Soetaert W. Transglucosylation potential of six sucrose phosphorylases toward different classes of acceptors. Carbohydr Res 2011; 346:1860-7. [DOI: 10.1016/j.carres.2011.06.024] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 06/20/2011] [Indexed: 01/06/2023]
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47
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Mena-Arizmendi A, Alderete J, Águila S, Marty A, Miranda-Molina A, López-Munguía A, Castillo E. Enzymatic fructosylation of aromatic and aliphatic alcohols by Bacillus subtilis levansucrase: Reactivity of acceptors. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Torres P, Poveda A, Jimenez-Barbero J, Parra JL, Comelles F, Ballesteros AO, Plou FJ. Enzymatic Synthesis of α-Glucosides of Resveratrol with Surfactant Activity. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000968] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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UV-ABC screens of luteolin derivatives compared to edelweiss extract. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2011; 103:8-15. [PMID: 21300553 DOI: 10.1016/j.jphotobiol.2011.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 11/03/2010] [Accepted: 01/10/2011] [Indexed: 11/20/2022]
Abstract
Pure luteolin is a remarkably heat (200°C/6 days) and UV stable UV-A screen, however, native luteolin enriched to 37% in an edelweiss extract lost its UV-A screen properties upon UV irradiation (∼4MJm(-2)). This contrasting behavior led to the examination of a series of purified luteolin derivatives as UV screen candidates. 3',4',5,7-Tetralipoyloxyflavones were synthesized from luteolin (3',4',5,7-tetrahydroxyflavone) and fatty acid chlorides. These acylated semi-biomolecules show a hypsochromic shift in UV-Vis spectra of about Δλ(A→B)=58nm and absorbed in the centre of the harmful UV-B band (λ(max)=295nm). Luteolin was also hydroxyethylated with Br(CH(2))(2)OH. This substitution has no effect on the λ(max)=330nm absorption of luteolin (UV-A band). Finally the natural 4'-O-β-glucosyl-3',5,7-trihydroxyflavone was extracted from edelweiss and used as a purified natural benchmark. Glycosylated and hydroxyethylated luteolin are both UV stable. Fully acylated luteolin derivatives degrade upon UV exposure to a stable UV-C screen with a hypsochroic shift Δλ(B→C)=35nm. All in all, three molecular structures based on luteolin with sunscreen properties were found, distinguishable in: UV-A, UV-B, and UV-C filters. The natural product based UV-absorbers show promise as alternatives to synthetic molecules and nanoparticles in sunscreen products.
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