Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism

To investigate the inhibitory activity and mechanism of naringin on α-glucosidase, the inhibition effect, type, and molecular mechanism of naringin on α-glucosidase were investigated by integrative analysis of enzyme kinetics, fluorescence spectroscopy and molecular docking simulation. The results s...

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Main Authors: Xiangju ZHOU, Yuqin CHEN, Zhongping YIN, Qi LIANG, ZANG Jianwei, Daobang TANG, Jiguang CHEN
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2022-04-01
Series:Shipin gongye ke-ji
Subjects:
Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021080184
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author Xiangju ZHOU
Yuqin CHEN
Zhongping YIN
Qi LIANG
ZANG Jianwei
Daobang TANG
Jiguang CHEN
author_facet Xiangju ZHOU
Yuqin CHEN
Zhongping YIN
Qi LIANG
ZANG Jianwei
Daobang TANG
Jiguang CHEN
author_sort Xiangju ZHOU
collection DOAJ
description To investigate the inhibitory activity and mechanism of naringin on α-glucosidase, the inhibition effect, type, and molecular mechanism of naringin on α-glucosidase were investigated by integrative analysis of enzyme kinetics, fluorescence spectroscopy and molecular docking simulation. The results showed that IC50 of naringin against α-glucosidase was 0.174 mmol/L, which was significantly lower than that of acarbose (IC50=0.721 mmol/L). The inhibition type was non-competitive inhibition with a Ki of 0.114 mmol/L. The binding of naringin and α-glucosidase led to the internal fluorescence quenching of the enzyme molecule. Furhter analysis indicated that the quenching constant was 0.1598×104 L/mol, and there was only one binding site. The molecular docking results showed that naringin was bound to a hydrophobic pocket of α-glucoside enzyme by the driving force of hydrogen bond, ionic bond, hydrophobic action, π-π-T stacking, and electrostatic action, with a binding energy of −7.6 kJ/mol. The results indicated that naringin was a good food-borne α-glucosidase inhibitor, and therefore had a good application prospect in the adjuvant treatment of diabetes functional food.
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spelling doaj.art-89646036b14b411d9a913f5b8e1492e42022-12-22T04:39:08ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062022-04-0143815716410.13386/j.issn1002-0306.20210801842021080184-8Inhibitory Effect of Naringin on α-Glucosidase and Its MechanismXiangju ZHOU0Yuqin CHEN1Zhongping YIN2Qi LIANG3ZANG Jianwei4Daobang TANG5Jiguang CHEN6College of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaCollege of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaCollege of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaCollege of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaCollege of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaInstitute of Sericulture and Agro-Products Processing, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Agro-Products Processing/Key Laboratory of Functional Food, Guangzhou 510610, ChinaCollege of Food Science and Engineering, Jiangxi Key Laboratory of Natural Products and Functional Foods/Jiangxi Engineering Laboratory of Agricultural Products Processing and Safety Control, Jiangxi Agricultural University, Nanchang 330045, ChinaTo investigate the inhibitory activity and mechanism of naringin on α-glucosidase, the inhibition effect, type, and molecular mechanism of naringin on α-glucosidase were investigated by integrative analysis of enzyme kinetics, fluorescence spectroscopy and molecular docking simulation. The results showed that IC50 of naringin against α-glucosidase was 0.174 mmol/L, which was significantly lower than that of acarbose (IC50=0.721 mmol/L). The inhibition type was non-competitive inhibition with a Ki of 0.114 mmol/L. The binding of naringin and α-glucosidase led to the internal fluorescence quenching of the enzyme molecule. Furhter analysis indicated that the quenching constant was 0.1598×104 L/mol, and there was only one binding site. The molecular docking results showed that naringin was bound to a hydrophobic pocket of α-glucoside enzyme by the driving force of hydrogen bond, ionic bond, hydrophobic action, π-π-T stacking, and electrostatic action, with a binding energy of −7.6 kJ/mol. The results indicated that naringin was a good food-borne α-glucosidase inhibitor, and therefore had a good application prospect in the adjuvant treatment of diabetes functional food.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021080184naringeninα-glucosidasefluorescence spectroscopymolecular dockinginhibition
spellingShingle Xiangju ZHOU
Yuqin CHEN
Zhongping YIN
Qi LIANG
ZANG Jianwei
Daobang TANG
Jiguang CHEN
Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
Shipin gongye ke-ji
naringenin
α-glucosidase
fluorescence spectroscopy
molecular docking
inhibition
title Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
title_full Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
title_fullStr Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
title_full_unstemmed Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
title_short Inhibitory Effect of Naringin on α-Glucosidase and Its Mechanism
title_sort inhibitory effect of naringin on α glucosidase and its mechanism
topic naringenin
α-glucosidase
fluorescence spectroscopy
molecular docking
inhibition
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2021080184
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AT qiliang inhibitoryeffectofnaringinonaglucosidaseanditsmechanism
AT zangjianwei inhibitoryeffectofnaringinonaglucosidaseanditsmechanism
AT daobangtang inhibitoryeffectofnaringinonaglucosidaseanditsmechanism
AT jiguangchen inhibitoryeffectofnaringinonaglucosidaseanditsmechanism