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논문 기본 정보

자료유형
학술저널
저자정보
노경희 (인제대학교) 민관희 (경희대학교병원) 서보영 (인제대학교) 김소희 (동주대학교) 서영완 (해양대학교) 송영선 (인제대학교)
저널정보
한국영양학회 한국영양학회지 한국영양학회지 제45권 제5호
발행연도
2012.10
수록면
429 - 436 (8page)

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This study was performed to examine the characteristics of protein of red crab (Chionoecetes japonicus) shell powder hydrolyzed by commercial proteases. Red crab shell was digested by commercial proteases, such as Protamex (P), Neutrase (N), Flavourzyme (F), Alcalase (A), Protease M (PM) and Protease A (PA). Protein yield analyzed by Biuret assay, absorbance at 280 nm and brix revealed that PA was the enzyme having the highest proteolytic activity. SDS PAGE showed that molecular weight of proteins produced by protease treatments was various and below 150 kDa. Combinational treatment of proteases (PA + P, PA + PM, PA + F, PA + A) was tried whether these increase protein hydrolysis from red crab shell powder compared to a PA single treatment. Soluble protein content was similar, but amino acid concentration by combinational treatments was higher than PA single treatment [PA + P 247.4 mg/g > PA + F (206.4 mg/g) > PA + A (133.4 mg/g) > PA + PM (59.1 mg/g) > PA (54.9 mg/g)]. Amino acid composition by combinational treatments was slightly different. Most abundant essential amino acids were phenylalanine, glycine, alanine, and leucine, whereas tyrosine and cystine were not detected. (Korean J Nutr 2012; 45(5): 429 ~ 436)

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UCI(KEPA) : I410-ECN-0101-2014-594-001100967