TITLE:
Effect of Different Cover Cultivations in Later Summer on Aroma Constituents of Autumn Tea (Camellia sinensis L.)
AUTHORS:
Min Liu, Fucan Xie, Renrong Cao, Xiaohua Qi, Xuehao Chen
KEYWORDS:
Cultivation Conditions, HS-SPME, GC-MS, Aroma, Tea
JOURNAL NAME:
Journal of Agricultural Chemistry and Environment,
Vol.3 No.4B,
October
28,
2014
ABSTRACT: Tea plants grown under sunshade net and greenhouse are new methods for coping with high- temperature stress in later
summer in middle and south China. Aroma is one of the most important flavors
and qualities of tea. In this research the cultivar “Longjing-changye” (LJCY)
was grown under sunshade net, greenhouse and open field as treatments to study
the changes of aromatic substances by using Head Space Solid
Phase-microextraction and Gas Chromatography-Mass Spectrometry (HS-SPME/GC-MS).
The results showed that tea plants grown under sunshade net and greenhouse had
higher content of aroma substances in autumn tea. Those growing conditions are
good for improving the contents of the ester and geraniol with floral and
fruity fragrance in autumn tea. Moreover, overshadowing in summer is helpful to
improve fragrance of fresh tea leaves quality in autumn tea, particularly the
50% sunshade net.