Effects of natural spring water on the sensory attributes and physicochemical properties of tea infusions.
(+)-Catechin (PubChem CID: 1203)
(+)-Gallocatechin (PubChem CID: 9882981)
(+)-Gallocatechin gallate (PubChem CID: 199472)
(−)-Catechin gallate (PubChem CID: 6419835)
(−)-Epicatechin (PubChem CID: 72276)
(−)-Epicatechin gallate (PubChem CID: 367141)
(−)-Epigallocatechin (PubChem CID: 72277)
(−)-Epigallocatechin gallate (PubChem CID: 65064)
Auto-oxidation
Darkening mechanism
Natural spring water
Sensory attributes
Journal
Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639
Informations de publication
Date de publication:
01 Sep 2023
01 Sep 2023
Historique:
received:
05
12
2022
revised:
13
03
2023
accepted:
28
03
2023
medline:
28
4
2023
pubmed:
11
4
2023
entrez:
10
4
2023
Statut:
ppublish
Résumé
The sensory quality of tea is influenced by water quality, with natural spring water (NSW) gaining much attention for its natural and healthy qualities. The effects of NSW on the sensory attributes, physicochemical composition, and antioxidant capacity of Chinese tea were investigated. Tea brewed with pure water was the most resistant to oxidation and darkening. NSW with low total dissolved solids (TDS) was most suitable for brewing unfermented or mildly fermented teas, improving their sensory quality. The simulated green tea infusion system was used to investigate further the dramatic darkening of tea infusions in NSW. Exposure of infusions to air promoted the degradation, epimerization, and oxidative polymerization of catechins, and further formed theabrownins which darkened the tea infusions. These findings enabled tea consumers to choose the most suitable NSW for brewing Chinese teas and illustrated the darkening mechanism of tea infusion in high pH/TDS water.
Identifiants
pubmed: 37037130
pii: S0308-8146(23)00697-0
doi: 10.1016/j.foodchem.2023.136079
pii:
doi:
Substances chimiques
Antioxidants
0
Catechin
8R1V1STN48
Tea
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
136079Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.