Integrated chemical profiling of Camellia sinensis teas marketed in Brazil: Physicochemical, mineral, and volatile compound characterization
Year: 2025
Type: article
Abstract: • Different types of Camellia sinensis tea were analyzed for their proximate composition and volatile profile. • The commercial samples available in Brazil showed significant variations in volatile compounds. • Gas chromatography-mass spectrometry (GC–MS) coupled with headspace solid-phase microextraction (HS-SPME) was successfully used for volatile characterization. • The results contribute to the valorization and standardization of teas marketed in Brazil. Tea derived from Camellia sinensis is among the most widely consumed beverages worldwide, valued for its sensory diversity and health-promoting properties. This study aimed to perform a comprehensive chemical characterization of fifteen commercially available teas marketed in Brazil, focusing on their proximate composition, mineral content, and volatile profile. Analytical determinations included physicochemical parameters, macronutrient quantification, and headspace solid-phase microextraction followed by gas chromatography–mass spectrometry (HS-SPME/GC–MS). A total of 298 volatile and semi-volatile compounds were identified, mainly consisting of aldehydes, alcohols, esters, ketones, and terpenes. Principal component analysis (PCA) demonstrated clear clustering of teas according to processing type, particularly differentiating roasted and oxidized samples. The integration of nutritional and volatile data revealed that both processing intensity and geographical origin strongly influence compositional patterns. These findings provide a basis for authenticity assessment, product standardization, and quality control of Brazilian teas, contributing to the development of value-added functional beverages.
Source: Food Chemistry Advances
Authors: Natalie da Silva Aragão, Midori Nakamura Marques, Bruna Ribeiro de Lima, Ariane de Aguiar Queiros, Esther Belo de Souza, Raimundo Carlos Pereira Júnior, Wallice Paxiúba Duncan, Jaime Paiva Lopes Aguiar, Vanessa de Souza Marinho, Francisca das Chagas do Amaral Souza
Language: English
Topic: Tea Polyphenols and Effects
Subfield: Pathology and Forensic Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,080
Awards: G6076906967, G7290695283, G9000140567
OpenAlex ID: W7104177882