Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Preparation of Onion Hydrolysates with Enzyme

효소에 의한 양파가수분해액의 제조

  • 서형주 (고려대학교 보건전문대학 식품영양과) ;
  • 정수현 (고려대학교 보건전문대학 식품영양과) ;
  • 손종연 (안성산업대학교 식품공학과) ;
  • 손흥수 (안성공업전문대학 식품공업과) ;
  • 조원대 (농협전문대학 식품제조과) ;
  • 마상조 (광주보건전문대학 식품가공과)
  • Published : 1996.10.01
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Abstract

The changes in chemical constituents of onion in Korea and the degree of hydrolysis in onion by-drolysates by treatment of viscozyme L, celluclast 1.5L, pectinex and cereflo were investigated. Proximate compositions of onion in Korea were as follows; The contents of moisture, protein, lipid, carbohydrate and ash were 89~90%, 1.8~1.9%, 0.4~0.5%, 7.1~8.5% and 0.3~0.5%, respectively. Major free sugars were identified to be glucose, fructose and sucrose and major free amino acids were as cysteine, histidine, arginine and glutamic acid. The degree of hydrolysis by treatment of viscozyme L, celluclast 1.5L, pectinex and cereflo was 69%, 71%, 80% and 62%, respectively. During the enzymatic hydrolysis, free sugar and total sugar content increased however, pyruvic acid content decreased significantly.

본 실험에서는 국내산 양파들의 일반성분, 유리아미노산 및 유리당의 함량을 비교, 분석하였으며, 또한 Celluclast 1.5L, Viscozyme L, Cereflo 및 Pectinex 등의 효소를 첨가하였을 때의 양파 가수분해액의 수율 및 성분 변화에 대하여 조사하고자 하였다. 국내산 양파의 수분, 단백질, 지방, 탄수화물 및 회분의 함량은 89~90%, 1.8~l.9%, 0.4~0.5%, 7.1~8.5% 및 0.3~0.5%인 것으로 나타났다. 주요 유리당은 glucose, fructose 및 sucrose 이었으며, 주요 유리아미노산은 cysteine, histidine, arginine 및 glutamic acid였다. Cereflo, Celluclast 1.5L, Pectinex와 Viscozyme L 처리에 의한 양파의 가수분해도는 각각 69%, 71%, 80% 및 62%이었다. 효소에 의한 양파의 가수분해시 유리당의 함량은 증가한 반면 pyruvic acid 함량은 감소하는 경향을 보였다.

Keywords

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