Physicochemical properties of Turkish green tea powder: efects of shooting period, shading, and clone

Abstract

Tis study aimed to determine the physicochemical properties of the green tea powders produced from 2 diferent Turkishtea [ Camellia sinensis (L.) O.Kuntze] clones (Derepazarı 7 and Fener) grown under diferent shade levels and harvested during 2consecutive shooting periods. Moisture, ash, crude fber, and total phenolic contents of the green tea powders were determined basedon the experimental factors. Products were also evaluated for their water activity, bulk density, particle size, color, extraction yield, andantioxidant activity. Te shooting period, specifc to Turkish tea cultivation, showed remarkable efects on the main quality parametersof the green tea powders. It is noteworthy that the phenolic content and antioxidant activity of the products did not change signifcantlywith treatments. Te green tea powder produced from Derepazarı 7 clone, grown under dark shade and harvested in the frst shootingperiod, was superior among the tested parameters.