A. Hatanaka, T. Kajiwara, J. Sekiya
1976
Citations
1
Influential Citations
22
Citations
Journal
Phytochemistry
Abstract
Abstract The seasonal variations in the amounts of C 6 -volatile components cis -3-hexenal trans -2-hexenal n -hexanal) and their precursors (linoleic and linolenic acid) in homogenates of Thea sinensis leaves were quantitatively analyzed throughout the year. Formation of trans -2-hexenal began in the middle of April and reached a maximum during July. Towards autumn the aldehyde gradually decreased and, in winter (December to March), was virtually absent. The levels of cis -3-hexenol remained constant during May–December. cis -3-Hexenal showed a similar variation pattern to that of trans -2-hexenal. The major fatty acids in the leaves were palmitic, palmitoleic, oleic, linoleic and linolenic acid, and occurred in non-ionic lipids and phospholipid fractions. The amounts of linoleic and linolenic acid did not show any marked variation except for a big peak in October.