Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
권호 표지

Studies on the Preparation of Pheasant Meat Extracts by Protease

효소에 의한 꿩고기 가수분해물의 제조

  • Jeong, Jae-Hong (Dept. of Food Science & Technology, College of Agriculture, Chungnam National University) ;
  • Kim, Ki-Jun (Chungcheongnamdo, Institute of Public Health and Environment) ;
  • Lee, Gyu-Hee (Dept. of Food Science & Technology, College of Agriculture, Chungnam National University) ;
  • Lee, Seuk-Keun (Dept. of Food Science & Technology, College of Agriculture, Chungnam National University) ;
  • Oh, Man-Jin (Dept. of Food Science & Technology, College of Agriculture, Chungnam National University)
  • 정재홍 (충남대학교 농과대학 식품공학과) ;
  • 김기준 (충청남도 보건환경연구원) ;
  • 이규희 (충남대학교 농과대학 식품공학과) ;
  • 이석건 (충남대학교 농과대학 식품공학과) ;
  • 오만진 (충남대학교 농과대학 식품공학과)
  • Published : 1998.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Ths studies was carried out to investigate the processing possibility of pheasant meat extracts treated with proteases. The crude protein, aminonitrogen, degree of hydrolysis, yield and amino acid composition of pheasant meat extracts when it was treated with proteases at various temperature and reaction time were analyzed. The crude protein contents of pheasant meat extracts processed in $130^{\circ}C$ were more than when it was done in $100^{\circ}C$, but the contents of aminonitrogen were not quite different between two processing temperature. The content of crude protein and aminonitrogen when pheasant meat was hydrolyzed with protease NP and prozyme A. The yields of pheasant meat extracts, when pheasant meat were treated at $100^{\circ}C$ and $130^{\circ}C$, were from 2.24 to 7.10% and from 5.51 to 10.45%, respectively. And the yield of extraction depended on extraction temperature, kinds of enzyme, amount of enzyme, extraction time. The content of aminonitrogen in pheasant meat extracts treated with enzyme was much higher than any other treatments. And it depended on amount of enzyme, extraction time and temperature. The amount of the amino acids in pheasant meat extracts treated by protease NP were eminently higher than by heat at $100^{\circ}C$ or $130^{\circ}C$.

특수 가금육인 꿩고기의 이용성을 높이고 가공에 대한 기초자료를 얻기 위하여 꿩고기에 단백분해 효소를 작용시켜 추출물을 제조할 때 추출온도, 시간 및 사용한 효소의 첨가량에 따라 추출물의 조단백질 함량, 아미노태 질소 함량, 가수분해율 및 수율, 아미노산 조성 등을 분석하였다. 꿩고기 추출물 제조시 $130^{\circ}C$에서 추출한 조단백질의 함량은 $100^{\circ}C$에서 추출한 것보다 현저히 증가하였으나 아미노태 질소의 함량은 별 차이가 없었다. 꿩고기에 단백질분해 효소인 protease NP, prozyme A를 처리하면 조단백질의 함량 및 아미노태 질소 함량이 상당히 높아 졌으며 protease NP가 더욱더 실용적이었다. 꿩고기로부터 얻어지는 추출물의 수율은 $100^{\circ}C$에서 처리한 것은 2.24~7.10%, $130^{\circ}C$에서 5.51~10.45%이었으며, 추출 시간 및 효소 첨가량에 의한 영향은 비교적 적었다. 꿩고기의 추출 수율은 추출온도, 효소의 종류, 효소 첨가량, 추출시간의 순으로 영향을 미쳤다. 아미노태 질소 함량은 효소 처리한 것이 가장 높았으며, 효소 첨가량, 추출시간, 추출온도의 순으로 영향을 미쳤으나 처리간 함량의 변화는 적었다 꿩고기 추출물의 유리 아미노산 함량은 protease NP로 처리하는 것이 $100^{\circ}C$ 또는 $130^{\circ}C$에서 가열 처리하는 것보다 현저히 높았다.

Keywords