닭털 단백질로부터 가수분해물 제조 및 철분 결합 펩타이드의 분리
Preparation of chicken feather protein hydrolysates and isolation of iron-binding peptides
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초록
닭털 단백질을 단백질 가수분해 효소인 Flavouzyme을 이용하여 8시간 동안 가수분해하여 가수분해물을 제조하였다. 닭털 단백질 가수분해물로부터 저분자량 펩타이드를 얻고자 한외여과를 하였고, 철분 결합 펩타이드를 분리하기 위해 Q-Sepharose와 Sephadex G-15 컬럼을 사용하여 분리하였다. 그 결과, 철분 결합력이 높은 펩타이드 분획, F12를 분리하였고, 향후 철분 보충제로써 활용이 가능하다고 판단된다.
Abstract
As byproducts of chicken slaughtering, chicken feathers are produced and mostly discarded without proper treatment, which results in serious environment pollution. Therefore, the appropriate treatment and utilization of chicken feathers are needed. In particular, chicken feathers can be used as protein sources for the preparation of protein hydrolysates, considering that chicken feathers have a large amount of proteins. In this study, chicken feather protein hydrolysates were prepared and their iron-binding peptides were isolated. Chicken feather protein was extracted from feathers of slaughtered chicken, and its hydrolysates were prepared via hydrolysis with Flavourzyme for 8 h. Then the chicken feather protein hydrolysates were ultra-filtered to obtain small peptide fractions and fractionated using Q-Sepharose and Sephadex G-15 columns to isolate their iron-binding peptides. Two major fractions were produced from each of the Q-Sepharose ion exchange chromatography and the Sephadex G-15 gel filtration chromatography. Among the fractions, the peptide fraction with a high iron-binding activity level, F12, was isolated. These results suggest that chicken feather protein hydrolysates can be used as iron supplements.
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