Effects of Two Treating Technology on Quality of Silkworm Pupae Meal
Author information+
1. College of Animal Science and Technology，Northwest A & F University，Yangling Shaanxi , 712100, China;
2. Ankang Fisheries Research Station of Northwest A&F University，Ankang Shaanxi , 725021, China;
3. College of Animal Science and Technology，Southwest University，Chongqing 400716，China
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History+
Received
Revised
Published
2012-03-09
2012-03-23
2012-05-10
Issue Date
2012-09-26
Abstract
This experiment was to offer basic theory and reference for silkworm pupae using in feed industry. The experimental silkworm pupae meal (SM)was defatted with n-hexane(S2) or water boiled(S3),while S1 was the SM not defatted .The physical properties, chemical composition, amino acid composition, amino acid score(AAS) and fatty acid composition of the three silkworm pupae meal were analyzed. The results showed that the silkworm pupae meal of n-hexane defatted was odorless ,decolorant ,and volumeweight, crude protein and ash was the highest, crude fat was the lowest (P<0.05).Though water boiled defatted SM was odorless, it became more colorant. The n-hexane defatted significantly changed fatty acids composition of silkworm pupae meal, though the water boiled changed little fatty acids composition. It is found that different treating technology had different effects on amino acids composition of silkworm pupae meal, they became close to FAO/WHO standard mode after defatted. In conclusion, silkworm pupae meal defatted with nhexane has higher content of crude protein, lower content of crude fat and excellent fatty acids and amino acid composition, which can be propitious to application in feed fields.
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