Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability

Caffeoylquinic acids are existed in many plant species with various biological and pharmacological activities. 3-O-caffeoylquinic acid and 4-O-caffeoylquinic acid are two isomers of caffeoylquinic acids, which may be degraded and transformed to their isomers in processing. The present paper found th...

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Autores principales:	Danli Wang, Jiayuan Liu, Shaoping Qiu, Jingjing Wang, Gongshuai Song, Bingquan Chu, Ling Li, Gongnian Xiao, Jinyan Gong, Fuping Zheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Caffeoylquinic acid Isomerization Ultrasound Degradation kinetics Weibull equation Chemistry QD1-999 Acoustics. Sound QC221-246
Acceso en línea:	https://doaj.org/article/fa1a2e51a710443caf1a337d7c7c7273
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spelling	oai:doaj.org-article:fa1a2e51a710443caf1a337d7c7c72732021-12-02T04:59:48ZUltrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability1350-417710.1016/j.ultsonch.2021.105812https://doaj.org/article/fa1a2e51a710443caf1a337d7c7c72732021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1350417721003540https://doaj.org/toc/1350-4177Caffeoylquinic acids are existed in many plant species with various biological and pharmacological activities. 3-O-caffeoylquinic acid and 4-O-caffeoylquinic acid are two isomers of caffeoylquinic acids, which may be degraded and transformed to their isomers in processing. The present paper found that the stability of 3- and 4-O-caffeoylquinic acid had decreased with the increasing solution alkalinity. 3-O-caffeoylquinic acid was more stable than 4-O-caffeoylquinic acid at the same condition. During degradation, 3- and 4-O-caffeoylquinic acid were partially converted to their isomers. Additionally, ultrasonic effects on the degradation and isomerization of 3- and 4-O-caffeoylquinic acid at different pH were studied. Ultrasound facilitated the degradation and isomerization of these compounds. The degradation kinetics were described by the Weibull equation. The protective effect of ascorbic acid and epigallocatechin gallate were also explored. Ascorbic acid and epigallocatechin gallate could alleviate the degradation of 3- and 4-O-caffeoylquinic acid under certain conditions.Danli WangJiayuan LiuShaoping QiuJingjing WangGongshuai SongBingquan ChuLing LiGongnian XiaoJinyan GongFuping ZhengElsevierarticleCaffeoylquinic acidIsomerizationUltrasoundDegradation kineticsWeibull equationChemistryQD1-999Acoustics. SoundQC221-246ENUltrasonics Sonochemistry, Vol 80, Iss , Pp 105812- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Caffeoylquinic acid Isomerization Ultrasound Degradation kinetics Weibull equation Chemistry QD1-999 Acoustics. Sound QC221-246
spellingShingle	Caffeoylquinic acid Isomerization Ultrasound Degradation kinetics Weibull equation Chemistry QD1-999 Acoustics. Sound QC221-246 Danli Wang Jiayuan Liu Shaoping Qiu Jingjing Wang Gongshuai Song Bingquan Chu Ling Li Gongnian Xiao Jinyan Gong Fuping Zheng Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
description	Caffeoylquinic acids are existed in many plant species with various biological and pharmacological activities. 3-O-caffeoylquinic acid and 4-O-caffeoylquinic acid are two isomers of caffeoylquinic acids, which may be degraded and transformed to their isomers in processing. The present paper found that the stability of 3- and 4-O-caffeoylquinic acid had decreased with the increasing solution alkalinity. 3-O-caffeoylquinic acid was more stable than 4-O-caffeoylquinic acid at the same condition. During degradation, 3- and 4-O-caffeoylquinic acid were partially converted to their isomers. Additionally, ultrasonic effects on the degradation and isomerization of 3- and 4-O-caffeoylquinic acid at different pH were studied. Ultrasound facilitated the degradation and isomerization of these compounds. The degradation kinetics were described by the Weibull equation. The protective effect of ascorbic acid and epigallocatechin gallate were also explored. Ascorbic acid and epigallocatechin gallate could alleviate the degradation of 3- and 4-O-caffeoylquinic acid under certain conditions.
format	article
author	Danli Wang Jiayuan Liu Shaoping Qiu Jingjing Wang Gongshuai Song Bingquan Chu Ling Li Gongnian Xiao Jinyan Gong Fuping Zheng
author_facet	Danli Wang Jiayuan Liu Shaoping Qiu Jingjing Wang Gongshuai Song Bingquan Chu Ling Li Gongnian Xiao Jinyan Gong Fuping Zheng
author_sort	Danli Wang
title	Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
title_short	Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
title_full	Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
title_fullStr	Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
title_full_unstemmed	Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability
title_sort	ultrasonic degradation kinetics and isomerization of 3- and 4-o-caffeoylquinic acid at various ph: the protective effects of ascorbic acid and epigallocatechin gallate on their stability
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/fa1a2e51a710443caf1a337d7c7c7273
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Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability

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