1
|
Liu J, Cheng J, Huang M, Shen C, Xu K, Xiao Y, Pan W, Fang Z. Identification of an Invertase With High Specific Activity for Raffinose Hydrolysis and Its Application in Soymilk Treatment. Front Microbiol 2021; 12:646801. [PMID: 33897661 PMCID: PMC8060482 DOI: 10.3389/fmicb.2021.646801] [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: 12/28/2020] [Accepted: 03/15/2021] [Indexed: 11/23/2022] Open
Abstract
The hydrolyzation of raffinose into melibiose by using invertases under mild conditions improves the nutritional value of soybean products. However, this strategy has received little attention because a suitable invertase remains lacking. In this study, a novel invertase named InvDz13 was screened and purified from Microbacterium trichothecenolyticum and characterized. InvDz13 was one of the invertases with the highest specific activity toward raffinose. Specifically, it had a specific activity of 229 U/mg toward raffinose at pH 6.5 and 35°C. InvDz13 retained more than 80% of its maximum activity at pH 5.5–7.5 and 25–40°C and was resistant to or stimulated by most cations that presented in soymilk. In soymilk treated with InvDz13 under mild conditions, melibiose concentration increased from 3.1 ± 0.2 to 6.1 ± 0.1 mM due to raffinose hydrolyzation by InvDz13. Furthermore, the prebiotic property of InvDz13-treated soymilk was investigated via in vitro fermentation by human gut microbiota. Results showed that InvDz13 treatment increased the proportion of the beneficial bacteria Bifidobacterium and Lactobacillus by 1.6- and 3.7-fold, respectively. By contrast, the populations of Escherichia and Collinsella decreased by 1.8- and 11.7-fold, respectively. Thus, our results proved that the enzymatic hydrolysis of raffinose in soymilk with InvDz13 was practicable and might be an alternative approach to improving the nutritional value of soymilk.
Collapse
Affiliation(s)
- Juanjuan Liu
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Jing Cheng
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Min Huang
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Chen Shen
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Ke Xu
- Anhui RenRenFu Bean Co., Ltd., Hefei, China
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| | - Wenjuan Pan
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, China.,Anhui Key Laboratory of Modern Biomanufacturing, Hefei, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, China
| |
Collapse
|
2
|
Bretagne D, Pâris A, de Vaumas R, Lafite P, Daniellou R. Crystal structure of Dictyoglomus thermophilum β-d-xylosidase DtXyl unravels the structural determinants for efficient notoginsenoside R1 hydrolysis. Biochimie 2020; 181:34-41. [PMID: 33242495 DOI: 10.1016/j.biochi.2020.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 01/13/2023]
Abstract
Dictyoglomus thermophilum β-d-xylosidase DtXyl is attractive as a potential thermostable biocatalyst able to produce biologically active ginsenosides intermediates from β-(1,2)-D-xylosylated compounds, including Notoginsenoside-R1. DtXyl was expressed as an active N-terminal His-tagged protein, and its crystal structure was solved in presence or absence of d-xylose product. Modelling of notoginsenoside R1 in DtXyl active site led to the identification of several hydrophobic residues interacting in close contact to the substrate hydrophobic core. Unlike other residues involved in substrate binding, these residues are not conserved among GH39 xylosidase family, and their physico-chemical properties can be correlated to the efficient binding and subsequent hydrolysis of Notoginsenoside R1.
Collapse
Affiliation(s)
- Damien Bretagne
- Institut de Chimie Organique et Analytique (ICOA), UMR CNRS-Université d'Orléans 7311, Université d'Orléans, BP 6759, Orléans, 45067, Cedex 2, France
| | - Arnaud Pâris
- Institut de Chimie Organique et Analytique (ICOA), UMR CNRS-Université d'Orléans 7311, Université d'Orléans, BP 6759, Orléans, 45067, Cedex 2, France
| | - René de Vaumas
- Extrasynthese, CS 30062, ZI Lyon Nord, Impasse Jacquard, 69727, Genay Cedex, France
| | - Pierre Lafite
- Institut de Chimie Organique et Analytique (ICOA), UMR CNRS-Université d'Orléans 7311, Université d'Orléans, BP 6759, Orléans, 45067, Cedex 2, France.
| | - Richard Daniellou
- Institut de Chimie Organique et Analytique (ICOA), UMR CNRS-Université d'Orléans 7311, Université d'Orléans, BP 6759, Orléans, 45067, Cedex 2, France
| |
Collapse
|
4
|
Guillotin L, Cancellieri P, Lafite P, Landemarre L, Daniellou R. Chemo-enzymatic synthesis of 3-O- (β-d-glycopyranosyl)-sn-glycerols and their evaluation as preservative in cosmetics. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2016-1210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Abstractd-Glycopyranosyl glycerols are common natural products and exhibit strong biological properties, notably as moisturizing agents in cosmetics. Their chemical synthesis remains tedious thus decreasing their potential industrial and economic development, as well as the study of their structure-function relationships. In this work, the chemo-enzymatic synthesis of three enantiopure 3-O-(β-d-glycopyranosyl)-sn-glycerols was efficiently performed using an original glycosidase from Dictyoglomus thermophilum and their preservatives properties were assessed using a challenge test method. Amongst them, the 3-O-(β-d-glucopyranosyl)-sn-glycerol exhibited a specific anti-fungus activity.
Collapse
Affiliation(s)
- Laure Guillotin
- Institut de Chimie Organique et Analytique (ICOA) UMR CNRS 7311, University of Orléans, Rue de Chartres, BP6759, 45067 Orléans cedex 2, France
| | - Perrine Cancellieri
- Glycodiag, Bâtiment Physique-Chimie, Rue de Chartres, BP6759, 45067 Orléans cedex 2, France
| | - Pierre Lafite
- Institut de Chimie Organique et Analytique (ICOA) UMR CNRS 7311, University of Orléans, Rue de Chartres, BP6759, 45067 Orléans cedex 2, France
| | - Ludovic Landemarre
- Glycodiag, Bâtiment Physique-Chimie, Rue de Chartres, BP6759, 45067 Orléans cedex 2, France
| | - Richard Daniellou
- Institut de Chimie Organique et Analytique (ICOA) UMR CNRS 7311, University of Orléans, Rue de Chartres, BP6759, 45067 Orléans cedex 2, France
| |
Collapse
|
5
|
Ferey J, Da Silva D, Lafite P, Daniellou R, Maunit B. TLC-UV hyphenated with MALDI-TOFMS for the screening of invertase substrates in plant extracts. Talanta 2017; 170:419-424. [DOI: 10.1016/j.talanta.2017.04.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/13/2017] [Accepted: 04/16/2017] [Indexed: 10/19/2022]
|
6
|
Ferey J, Da Silva D, Bravo-Veyrat S, Lafite P, Daniellou R, Maunit B. Validation of a thin-layer chromatography/densitometry method for the characterization of invertase activity. J Chromatogr A 2016; 1477:108-113. [DOI: 10.1016/j.chroma.2016.11.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 11/18/2016] [Accepted: 11/24/2016] [Indexed: 11/28/2022]
|
7
|
Purification and Characterization of a Novel Intracellular Sucrase Enzyme of Leishmania donovani Promastigotes. Biochem Res Int 2016; 2016:7108261. [PMID: 27190649 PMCID: PMC4848734 DOI: 10.1155/2016/7108261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 03/22/2016] [Indexed: 11/18/2022] Open
Abstract
The promastigote stage of Leishmania resides in the sand fly gut, enriched with sugar molecules. Recently we reported that Leishmania donovani possesses a sucrose uptake system and a stable pool of intracellular sucrose metabolizing enzyme. In the present study, we purified the intracellular sucrase nearly to its homogeneity and compared it with the purified extracellular sucrase. The estimated size of intracellular sucrase is ~112 kDa by gel filtration chromatography, native PAGE, and substrate staining. However, in SDS-PAGE, the protein is resolved at ~56 kDa, indicating the possibility of a homodimer in its native state. The kinetics of purified intracellular sucrase shows its higher substrate affinity with a K m of 1.61 mM than the extracellular form having a K m of 4.4 mM. The highly specific activity of intracellular sucrase towards sucrose is optimal at pH 6.0 and at 30°C. In this report the purification and characterization of intracellular sucrase provide evidence that sucrase enzyme exists at least in two different forms in Leishmania donovani promastigotes. This intracellular sucrase may support further intracellular utilization of transported sucrose.
Collapse
|