Inhibitory effects of propyl gallate on membrane lipids metabolism and its relation to increasing storability of harvested longan fruit.
Effects of propyl gallate on membrane lipids metabolism and its relation to storability of harvested longan fruits were studied. The results showed that the propyl gallate-treated longans maintained lower activities of pericarp phospholipase D (PLD), lipase and lipoxygenase (LOX) than those in control fruits. Such treatments could maintain higher levels of pericarp unsaturated fatty acids (USFAs), higher pericarp indices of unsaturated fatty acids (IUFA), and higher pericarp ratio of unsaturated fatty acids to saturated fatty acids (U/S) than those in control fruits. Furthermore, propyl gallate also delayed color changes of pericarp in the harvested longans. Therefore, the postharvest treatments of longan fruits with propyl gallate for increasing storability of longan fruits might be explained by a decrease in activities of PLD, lipase and LOX, and an the increased unsaturation of fatty acids, which could delay membrane lipids metabolism and maintain cell membrane characteristics.
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Yifen
Y
Lin
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Yixiong
Y
Lin
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China. Electronic address: hetonglin@126.com.
Hetong
H
Lin
Guelph Food Research Center, Agriculture and Agri-Food Canada, Guelph, Ontario N1G 5C9, Canada.
John
J
Shi
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Yihui
Y
Chen
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Hui
H
Wang
D061353:Food Storage / Q000379:methods*; D005638:Fruit / Q000378:metabolism*; D050356:Lipid Metabolism / Q000187:drug effects* / Q000502:physiology; D008084:Lipoxygenase / Q000378:metabolism; D008563:Membrane Lipids / Q000037:antagonists & inhibitors / Q000378:metabolism*; D010739:Phospholipase D / Q000037:antagonists & inhibitors / Q000378:metabolism; D011435:Propyl Gallate / Q000494:pharmacology*; D029631:Sapindaceae
D008563:Membrane Lipids; D011435:Propyl Gallate; D008084:Lipoxygenase; D010739:Phospholipase D
Lipase; Lipoxygenase (LOX); Longan (Dimocarpus longan Lour.); Membrane lipids metabolism; Phospholipase D (PLD); Propyl gallate; Storability; Unsaturated fatty acids (USFAs)