Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice

Plant flavonoids have various physiological functions beneficial to human health, but their content in plants is not high and usually exists in form of flavonoid glycosides with low bioavailability. This study used ultrasonic assisted ethanol extraction to extract flavonoids from common and tartary...

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Main Authors: Lu Shen, Can Li, Wanxia Wang, Xiaoru Wang, Dongqi Tang, Fang Xiao, Tao Xia
Format: Article
Language:English
Published: Elsevier 2024-02-01
Series:Journal of Functional Foods
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1756464624000318
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author Lu Shen
Can Li
Wanxia Wang
Xiaoru Wang
Dongqi Tang
Fang Xiao
Tao Xia
author_facet Lu Shen
Can Li
Wanxia Wang
Xiaoru Wang
Dongqi Tang
Fang Xiao
Tao Xia
author_sort Lu Shen
collection DOAJ
description Plant flavonoids have various physiological functions beneficial to human health, but their content in plants is not high and usually exists in form of flavonoid glycosides with low bioavailability. This study used ultrasonic assisted ethanol extraction to extract flavonoids from common and tartary buckwheat, the total flavonoid content increased significantly. After treated with β-glucosidase, flavonoid aglycones of common and tartary buckwheat increased by 27.51 % and 29.58 % respectively. Blood glucose of diabetic mice was significantly reduced by 38.20–47.20 % after receiving extracts for 4 weeks, of which tartary buckwheat extract treated with β-glucosidase had the best efficacy (47.20 %), which was 94.70 % of metformin hydrochloride group. The extracts could effectively restore serum and liver biochemical indicators and organ index, which may be related to regulating IRS-1/PI3K/AKT-1/mTOR and PI3K/AKT-1/GSK-3β signaling pathways. Our findings suggested that buckwheat extracts rich in flavonoid aglycones and glycosides could significantly improve hypoglycemic effect and alleviate insulin resistance in T2DM.
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spelling doaj.art-f21a0d68d1794cf393bacb59590dd23f2024-02-14T05:14:32ZengElsevierJournal of Functional Foods1756-46462024-02-01113106029Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes miceLu Shen0Can Li1Wanxia Wang2Xiaoru Wang3Dongqi Tang4Fang Xiao5Tao Xia6School of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR ChinaSchool of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR ChinaSchool of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR ChinaSchool of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR ChinaCenter for Gene and Immunotherapy, Multidisciplinary Innovation Center for Nephrology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, PR ChinaDepartment of Cadres Medical Care and Gerontology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, PR China; Corresponding authors at: Department of Cadres Medical Care and Gerontology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, PR China (F. Xiao). School of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China (T. Xia).School of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China; Corresponding authors at: Department of Cadres Medical Care and Gerontology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, PR China (F. Xiao). School of Bioengineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong 250353, PR China (T. Xia).Plant flavonoids have various physiological functions beneficial to human health, but their content in plants is not high and usually exists in form of flavonoid glycosides with low bioavailability. This study used ultrasonic assisted ethanol extraction to extract flavonoids from common and tartary buckwheat, the total flavonoid content increased significantly. After treated with β-glucosidase, flavonoid aglycones of common and tartary buckwheat increased by 27.51 % and 29.58 % respectively. Blood glucose of diabetic mice was significantly reduced by 38.20–47.20 % after receiving extracts for 4 weeks, of which tartary buckwheat extract treated with β-glucosidase had the best efficacy (47.20 %), which was 94.70 % of metformin hydrochloride group. The extracts could effectively restore serum and liver biochemical indicators and organ index, which may be related to regulating IRS-1/PI3K/AKT-1/mTOR and PI3K/AKT-1/GSK-3β signaling pathways. Our findings suggested that buckwheat extracts rich in flavonoid aglycones and glycosides could significantly improve hypoglycemic effect and alleviate insulin resistance in T2DM.http://www.sciencedirect.com/science/article/pii/S1756464624000318BuckwheatFlavonoid glycosidesFlavonoid aglyconesβ-Glucosidase, Hypoglycemic effectInsulin resistance
spellingShingle Lu Shen
Can Li
Wanxia Wang
Xiaoru Wang
Dongqi Tang
Fang Xiao
Tao Xia
Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
Journal of Functional Foods
Buckwheat
Flavonoid glycosides
Flavonoid aglycones
β-Glucosidase, Hypoglycemic effect
Insulin resistance
title Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
title_full Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
title_fullStr Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
title_full_unstemmed Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
title_short Buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
title_sort buckwheat extracts rich in flavonoid aglycones and flavonoid glycosides significantly reduced blood glucose in diabetes mice
topic Buckwheat
Flavonoid glycosides
Flavonoid aglycones
β-Glucosidase, Hypoglycemic effect
Insulin resistance
url http://www.sciencedirect.com/science/article/pii/S1756464624000318
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