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Contents of phenolics and flavonoids in green tea (Camellia sinensis) from samples of different brands available for sale in Salvador-Ba.

ABSTRACT

Camellia sinensis is widely known for its beneficial effects to human health. Among the various forms of processing this herb, the green and the black tea are the most popular ones. The objective of this work was to evaluate the contents of total polyphenol and flavonoids in samples of 25 different brands available for sale in pharmacies and supermarkets of Salvador-Ba. The results showed great variation in the concentration of phenolic compounds among the brands of green tea which were tested. In the study it was also proven that in the green tea preparation the samples obtained by mechanical agitation with aqueous infusion showed higher levels of phenolics and flavonoids contents than those which were not subjected to stirring.

Keyworks
Camellia sinensis; bioactive; antioxidant; green tea; water infusion

Sociedade Brasileira de Plantas Medicinais Sociedade Brasileira de Plantas Medicinais, Revista Brasileira de Plantas Medicinais, Universidade Estadual de Maringá, Departamento de Farmácia, Bloco T22, Avenida Colombo, 5790, 87020-900 - Maringá - PR, Tel: +55-44-3011-4627 - Botucatu - SP - Brazil
E-mail: revista@sbpmed.org.br