Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)

The pericarp of mangosteen, a by-product of the mangosteen, is rich in polyphenols. In this study, an efficient and environmentally friendly method for preparative enrichment of polyphenols from mangosteen pericarp (MPPs) was developed, and the inhibitory effects on starch digestion were also evalua...

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Main Authors: Xiaofang Li, Haoze Chen, Yan Jia, Jinming Peng, Chunmei Li
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/11/7/1001
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author Xiaofang Li
Haoze Chen
Yan Jia
Jinming Peng
Chunmei Li
author_facet Xiaofang Li
Haoze Chen
Yan Jia
Jinming Peng
Chunmei Li
author_sort Xiaofang Li
collection DOAJ
description The pericarp of mangosteen, a by-product of the mangosteen, is rich in polyphenols. In this study, an efficient and environmentally friendly method for preparative enrichment of polyphenols from mangosteen pericarp (MPPs) was developed, and the inhibitory effects on starch digestion were also evaluated. It was found that the optimal extract method of MPPs was at a solid to solvent ratio of 1:50 g/mL, pH of 2, and at 80 °C for 2 h. The IC<sub>50</sub> of MPPs for α-amylase was 0.28 mg/mL. Based on the fluorescence quenching results, we presumed that MPPs could alter the natural structure of α-amylase, resulting in inhibitory activity on α-amylase. In addition, MPPs significantly reduced the blood glucose peak and AUC of glucose responses in rats after ingestion of the starch solution. Taken together, MPPs may have the potential as a functional supplement for blood glucose control and diabetes prevention.
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spelling doaj.art-18f063b06f1741dea450cafcac9ff1422023-11-30T23:15:37ZengMDPI AGFoods2304-81582022-03-01117100110.3390/foods11071001Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)Xiaofang Li0Haoze Chen1Yan Jia2Jinming Peng3Chunmei Li4College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaBeijing Key Lab of Plant Resource Research and Development, School of Science, Beijing Technology and Business University, Beijing 100048, ChinaCollege of Food Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaThe pericarp of mangosteen, a by-product of the mangosteen, is rich in polyphenols. In this study, an efficient and environmentally friendly method for preparative enrichment of polyphenols from mangosteen pericarp (MPPs) was developed, and the inhibitory effects on starch digestion were also evaluated. It was found that the optimal extract method of MPPs was at a solid to solvent ratio of 1:50 g/mL, pH of 2, and at 80 °C for 2 h. The IC<sub>50</sub> of MPPs for α-amylase was 0.28 mg/mL. Based on the fluorescence quenching results, we presumed that MPPs could alter the natural structure of α-amylase, resulting in inhibitory activity on α-amylase. In addition, MPPs significantly reduced the blood glucose peak and AUC of glucose responses in rats after ingestion of the starch solution. Taken together, MPPs may have the potential as a functional supplement for blood glucose control and diabetes prevention.https://www.mdpi.com/2304-8158/11/7/1001Mangosteen (<i>Garcinia mangostana</i>)polyphenolα-amylase inhibitionfluorescence quenchingpostprandial blood glucose level
spellingShingle Xiaofang Li
Haoze Chen
Yan Jia
Jinming Peng
Chunmei Li
Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
Foods
Mangosteen (<i>Garcinia mangostana</i>)
polyphenol
α-amylase inhibition
fluorescence quenching
postprandial blood glucose level
title Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
title_full Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
title_fullStr Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
title_full_unstemmed Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
title_short Inhibitory Effects against Alpha-Amylase of an Enriched Polyphenol Extract from Pericarp of Mangosteen (<i>Garcinia mangostana</i>)
title_sort inhibitory effects against alpha amylase of an enriched polyphenol extract from pericarp of mangosteen i garcinia mangostana i
topic Mangosteen (<i>Garcinia mangostana</i>)
polyphenol
α-amylase inhibition
fluorescence quenching
postprandial blood glucose level
url https://www.mdpi.com/2304-8158/11/7/1001
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