한국식품영양과학회지 (Journal of the Korean Society of Food Science and Nutrition)
- 제13권3호
- /
- Pages.307-312
- /
- 1984
- /
- 1226-3311(pISSN)
- /
- 2288-5978(eISSN)
5종(種)의 해산(海産) 갑각류각피(甲殼類殼皮)에서의 Chitin 및 단백질함량(蛋白質含量)에 관한 연구(硏究)
A Study on the Chitin and Protein Contents in Shells of 5 Marine Crustaceans
- Lee, Mee-Sook (Department of Food and Nutrition, Han Nam University) ;
-
Seo, Jung-Sook
(Department of Food and Nutrition, Yeung Nam University) ;
-
Mo, Su-Mi
(Department of Food and Nutrition, Seoul National University)
- 발행 : 1984.09.30
초록
바다의 무척추동물(無脊椎動物) 중(中) 갑각류(甲殼類)에 속하는 꽃게(Portunus trituberculatus), 두점박이꽃게(Charybdis bimaculata), 보리새우 (Penaeus japonicus), 홍새우(Metapenaeus intermedius) 및 바다가재(Squilla oratoria) 등(等) 5종(種)을 택하여 이들의 말린 껍질에서 Ca과 같은 무기질(無機質)을 제거(除去)하여 chitin-protein complex를 얻었다. 이 chitin-protein 복합물(複合物)에 대하여 추출조건(抽出條件)을 달리하여 분리(分離)시켜 얻은 단백질량(蛋白質量)을 측정(測定)하였다. 또한 각(各) 껍질시료(試料)를
The dried pure shells deprived of soft tissues were subjected to analysis of chitin-protein complexes from 5 species of marine crustaceans, including 2 species of crabs and 3 species of shrimps. The protein fractions were obtained from chitin-protein complexes under the varying conditions of extractions and the crude chitin was prepared from the shells by the sulfurous acid process. The crude chitin was purified through the extraction with several organic solvents such as dimethyl-acetamide, N-methylpyrrolidone. The purified chitin was also examined using the phase contrast microscope. Total protein contents of the shells were diverse, showing 9.6% for Portunus trituberculatus, 3.1%, Charybdis bimaculata, 9.4%, Penaeus japonicus, 10.9%, Metapenaeus intermedius and 5.8%, Squilla oratoria. Covalently bound protein varied with species from 2.1% for Charybdis bimaculata to 9.9% for Metapenaeus intermedius. The puified chitin contents of the shells were shown to 21.1% for Portunus tritube rculatus, 6.2%, Charybdis bimaculata, 20.2%, Penaeus japonicus, 27.1%, Metapenaeus intermedius and 25.5%, Squilla oratoria. Exceptionally low analytical value obtained with Charybdis bimaculata are supposed to be due to the very young subjects. The ratios of chitin to covalently bound protein in the shells were various such as 2.7 to 1 for Portunus trituberculatus, Penaeus japonicus and Metapenaeus intermedius, 3.1 to 1, Charybdis bimaculata and 6.1 to 1, Squilla oratoria. The microscope finding of the purified chitin showed the filamentous form in all the specimen.
키워드