STUDIES ON THE EFFECT OF ULTRASONIC WAVES ON: LIPIDS STRUCTURE AND ACTIVITY OF LIPASE IN PEANUT SEEDLINGS AND CELL CULTURES

Document Type : Original Article

Authors

1 Department of Botany, Faculty of Science, Zagazig University

2 Department of Botany, Faculty of Science, Helwan University

Abstract

In the present work, the effect of ultrasonic waves on lipid metabolism and lipase activity in seedlings and cell culture of peanut was carried out. The neutral lipid contents of peanut seedlings were slightly increased by ultrasonication, but the total lipid as well as phospholipids content decreased. The reduction of phospholipids and total lipid contents of peanut seedlings was accelerated by ultrasonication exposure time from 15 to 60 minutes. Lipase activity of peanut seedlings increased also with time of exposure to ultrasonic waves. Cultured cells of peanut total lipids, diacylglycerols (DG), sterols (S) and free fatty acids (neutral lipid fractions), phosphatidylinositol (PI) as well as lipase activity were increased ultrasonication, while triacylglycerols (TG) and sterol esters (SE) as well as phosphatidylethanolamine (PE), phosphatidylcholine (PC) and phosphatic acid (PA) were decreased.