Studies on the amino acid change in silkworm and silkworm-chrysalis as an edible insect

식용곤충(食用昆蟲)으로서 누에 성장에 따른 아미노산함량(含量) 변화(變化)에 관한 연구(硏究)

Silkworm and silkworm-chrysalis as an edible insect have been investigated. Through this investigation, the following results are obtained : 1) Silkworm and silkworm-chrysalis as a good source of protein-rich compound was examined, and they contained 54.9% to 56% protein as a crude protein. 2) Except tryptophan, almost all the essential amino acids contained. The amount of the amino acids was on the increased as much as the silkworm growth. 3) The following amino acids was not detected on the silkworm fibron analysis, aspartic acid, glutamic acid, cystine and methionine. But the following amino acid were relatively high amount : glycine, alanine, and tyrosine. 4) Sucrose, fructose, and glucose as a carbohydrates was investigated, the results are from 0.312% to 0.313% as an invert sugar; 0.289% to 0.305% as a glucose; 0.333% to 0.412% as a fructose. 5) The acidity and pH of the milk was examined according to the silkworm-chrysalis powder added. added material was not effected as far as the milk was change. Therefore, the milk and the silkworm-chrysalis mixture are being a good drinkable things.

식용곤충(食用昆蟲)으로서 누에와 번데기를 분석(分析)하여 단백질(蛋白質)과 amino acid 함량(含量)을 알았고 이를 이용(利用)할 수 있는 가능성(可能性)을 알아보았다. (1) 누에와 번데기에 대(對)하여 단백질(蛋白質)을 정량(定量)한 결과(結果), $54.9{\sim}56%$ 정도의 단백질(蛋白質)이 함유(含有)되어 있음을 알았다. (2) 유리아미노산의 정량(定量)과 조성(組成)을 조사하였더니 tryptophan 을 제외(除外)한 대부분(大部分)의 아미노산이 함유되어 있으며 성장하여감에 따라 함량(含量)도 크게 변(變)하고 있음을 알게 되었다. (3) 탄수화물(炭水化物)로서 sucrose, glucose, fructose가 함유(含有)되어 있음을 확인하였다. (4) milk와의 반응(反應)을 $40^{\circ}C$ 항온조에서 방치하면서 pH와 산도변화(酸度變化)를 보았는데, 약 8시간(時間)동안 $40^{\circ}C$ 항온조에 놓아두는 경우 산도(酸度)는 약 8시간(時間)동안에는 별 변동이 없고, 그 후(後)에 변화(變化)가 심했다.