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Insights into the Mechanism of Quercetin against BSA-Fructose Glycation by Spectroscopy and High-Resolution Mass Spectrometry: Effect on Physicochemical Properties
Zhang, L (Zhang, Lu)[ 1,2 ]; Lu, Y (Lu, Yu)[ 1,2 ]; Ye, YH (Ye, Yun-hua)[ 1,2 ]; Yang, SH (Yang, Si-hang)[ 1,2 ]; Tu, ZC (Tu, Zong-cai)[ 1,2,3 ]; Chen, J (Chen, Juan)[ 1,2 ]; Wang, H (Wang, Hui)[ 1,2,3 ]; Wang, HH (Wang, Hong-hong)[ 1,2 ]; Yuan, T (Yuan, Tao)[ 1,2,4,5 ]
2019
Source PublicationJOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN0021-8561
Volume67Issue:1Pages:236-246
Abstract

Quercetin has been reported to suppress protein glycation or the formation of advanced glycation end-products (AGEs), but the inhibition mechanism related to protein structure and glycation sites and the influence on physicochemical properties remain unclear. The aim of the current research was to investigate the mechanism of quercetin against glycation with BSA-fructose as model by spectroscopic and spectrometric techniques. Changes in physicochemical properties were evaluated by antioxidant activity and emulsifying properties. The results indicated that quercetin dose-dependently inhibited the glycation of BSA by attenuating the alteration of conformational structure and microenvironment induced by glycation. It could also suppress the cross-linking or aggregation of glycated BSA, which reflected in the decreased molecular weight determined by SDS-PAGE and MALDI-TOF. Nanoliquid chromatography coupled to Q-Exactive tandem mass spectrometry analysis revealed the mapping of 20, 23, 19, and 19 glycation sites in glycated BSA with 0, 0.5, 1.5, and 3.0 mM quercetin, respectively. Quercetin changed the glycation sites of BSA, but it could not reduce the number greatly. In addition, quercetin reduced the antioxidant ability and increased the emulsifying properties of BSA, while negligible efficiency was observed on the antioxidant activity and emulsifying activity index of glycated BSA.

Keywordquercetin glycation BSA-fructose conformational structure Easy-nLC Q-Exactive MS/MS
DOI10.1021/acs.jafc.8b06075
Indexed BySCI
WOS IDWOS:000455561500026
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5676
Collection省部共建新疆特有药用资源利用重点实验室
Affiliation1.Jiangxi Normal Univ, Coll Life Sci, Natl R&D Ctr Freshwater Fish Proc, Nanchang 330022, Jiangxi, Peoples R China
2.Jiangxi Normal Univ, Coll Life Sci, Engn Res Ctr Freshwater Fish High Value Utilizat, Nanchang 330022, Jiangxi, Peoples R China
3.Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China
4.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Plant Resources & Chem Arid Zone, Urumqi 830011, Peoples R China
5.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, State Key Lab Xinjiang Indigenous Med Plants Reso, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Zhang, L ,Lu, Y ,Ye, YH ,et al. Insights into the Mechanism of Quercetin against BSA-Fructose Glycation by Spectroscopy and High-Resolution Mass Spectrometry: Effect on Physicochemical Properties[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2019,67(1):236-246.
APA Zhang, L .,Lu, Y .,Ye, YH .,Yang, SH .,Tu, ZC .,...&Yuan, T .(2019).Insights into the Mechanism of Quercetin against BSA-Fructose Glycation by Spectroscopy and High-Resolution Mass Spectrometry: Effect on Physicochemical Properties.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,67(1),236-246.
MLA Zhang, L ,et al."Insights into the Mechanism of Quercetin against BSA-Fructose Glycation by Spectroscopy and High-Resolution Mass Spectrometry: Effect on Physicochemical Properties".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 67.1(2019):236-246.
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