THE NUTRITIONAL COMPOSITION OF LIPIDS IN SILKWORM CHRYSALIS
- VernacularTitle:桑蚕蛹的脂质营养组成
- Author:
Xianghe MENG
;
Qiuyue PAN
;
Jinzhe HE
;
Peilong SUN
- Publication Type:Journal Article
- Keywords:
silkworm;
alpha-linolenic acid;
?-sitosterol;
phospholipids;
VE
- From:
Acta Nutrimenta Sinica
1956;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the nutritional composition of lipids in silkworm chrysalis (Bombyx mori L.). Method Crude lipids were extracted by chloroform/methanol, and fatty acid, tocopherol, sterol and phospholipid composition in silkworm chrysalis were determined by GC, HPLC and TLC methods. Results Silkworm chrysalis was rich in lipid (32.79%) in which the most abundant fatty acids were C18:3 (32.79%), C18:1 (32.53%), C16:0 (22.42%), but C18:2 (4.37%), C18:0 (5.73%) and C16:1 (0.57%) were relatively less. The sterols included cholesterol (67.35%), ?-sitosterol (19.21%), and trace amount of campesterol (0.28%) and brassicasterol (0.30%). Total tocopherols detected were at an average concentration of 486 mg/kg, including ?-tocopherol (44.85%), ?(+ ? )-tocopherol (44.57%), and ?-tocopherol (10.85%). The phospholipid content was about 1.17mg/g, among which, phosphorylcholine about 41.8%. Conclusion Silkworm chrystalis (Bombyx mori L.) could be a good source of nutritional edible oil rich in unsaturated fatty acid, phospholipids, phytosterols and tocopherols, particularly ?-linolenic acid, ?-sistosterol and ?-tocopherol.
