Abstract:

In this study, we used GC-MS to analyze the fatty acid composition of essential oils extracted from silkworm male moths and pupa with supercritical CO2 after methylation. Fifteen fatty acids were separated and identified in silkworm male moths oil, containing 54.52% of saturated fatty acids (SFA) and 6.89% of mono-unsaturated fatty acids (MUFA) and 38.63% of polyunsaturated fatty acids (PUFA), among whichs alpha linlenic acid presented the highest relative content (up to 36.71%). Fourteen fatty acids were identified in silkworm pupa oil, among which, the relative content of linoleic acid was the highest (up to 39.03%), followed by alpha linlenic acid (33.22%); SFA, MUFA and PUFA accounted for 25.73%, 2.12% and 72.25%.

Key words: silkworm moths, silkworm pupa, fatty acid, GC-MS