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Effect of Proteases on the Extraction of Crude Protein and Reducing Sugar in Pollen

화분에서의 조단백질 및 환원당 추출시 단백질 분해효소가 미치는 영향

  • Choi, Su-Jeong (Dept. of Food Science and Nutrition, Dankook University) ;
  • Jeong, Yoon-Hwa (Dept. of Food Science and Nutrition, Dankook University)
  • 최수정 (단국대학교 식품영양학과) ;
  • 정윤화 (단국대학교 식품영양학과)
  • Published : 2004.10.01

Abstract

This study was conducted to increase crude protein and reducing sugar contents in pollen extracts by proteases. Four commercial neutral proteases (Alcalase 2.4L, Protamex, Flavozyme and Protease A) and two alkaline proteases (Protease S and Protease P) were used to prepare acorn and Darae pollen extracts. Contents of moisture, ash, crude protein and crude fat of acorn pollen were 5.2%, 2.7%, 6.2% and 22.3%, respectively, while those of Darae pollen were 5.4%, 2.8%, 1.8% and 27.8%, respectively. Contents of crude protein and reducing sugar in pollen extracts were increased by proteases. Alcalase 2.4L was the most effective in increasing protein contents while Protease A in increasing reducing sugar contents. It is suggested the use of proteases is one of the potential methods for increasing the contents of crude protein and reducing sugar in preparation of pollen extracts.

국내산 충매 화분인 도토리 화분과 다래 화분에 단백질 분해효소를 이용하여 화분 추출물을 제조하고, 추출물의 조단백질 함량과 환원당 함량의 변화를 알아보았다. 도토리화분의 일반성분 분석결과 수분 5.2%, 회분 2.7%, 조지방 6.2%, 조단백질 함량은 22.3%였고, 다래화분은 수분 5.4%, 회분 2.8%, 조지방 1.8%, 조단백질 함량은 27.8%였다. Casein을 기질로 사용하여 측정한 효소의 비환성 (specific activity U/mg)은 Protease S>Flavozyme>Alcalase 2.4L>Protamex>Protease P>Protease A의 순이었다. 단백질 분해효소 처리에 의한 화분 추출물의 조단백질 함량은 효소 첨가군이 대조군보다 증가했고, Alcalase 2.4L을 0.2 U, 0.5 U 첨가시에 도토리 화분 추출물은 대조군보다 각각 35.8%, 45.8%, 다래 화분 추출물은 각각 68.8%, 101.5% 증가하였다. 단백질 분해효소 처리에 의한 화분 추출물의 환원당 함량은 효소 첨가군이 대조군보다 증가했고, Protease A를 0.2 U, 0.5 U 첨가 시 도토리 화분 추출물은 대조군보다 각각 11.4%, 18.4%, 다래 화분 추출물은 대조군보다 각각 12.2%, 14.2% 증가하였다. 단백질 분해 효소 처리에 의해 화분 추출물의 조단백질과 환원당의 함량이 증가되었고, 단백질 분해 효소는 화분 추출물의 조단백질 및 환원당 함량을 높이는 방법 중의 하나로 이용될 수 있다고 사료된다.

Keywords

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