Studies on the Feed Stuffs from the Agricultural Waste Part II Conditions of post-hydrolysis from chestnut-bur and yeast production from post-hydrolyzate.

농생폐자원의 사료화에 대한 연구 제이보 밤송이의 후가수분해의 조건과 후가수분해액에 대한 효모생대

  • Park, Jung-Gil (Department of Food Engineering Yonsei University) ;
  • Yang, Ryung (Department of Food Engineering Yonsei University) ;
  • Yoo, Ju-Hyun (Department of Food Engineering Yonsei University)
  • 박정길 (연세대학교 식품공학과) ;
  • 양령 (연세대학교 식품공학과) ;
  • 유주현 (연세대학교 식품공학과)
  • Published : 1975.12.01

Abstract

The pre-hydrolyzed residue of Chestnut-bur (1) was treated with 74% H$_2$SO$_4$, solution at 3$0^{\circ}C$ for 40minutes. Then the solution was diluted to 5% with distilled water and kept for another 40 minutes under steam pressure of 1.5kg/㎤ to complete the post-hydrolzation. In the resulting hydrolyzate, which showed 49.3% in saccharification rate, Candida utilis was grown and found that 62.5% of the reducing sugar had been converted to the yeast cells.

전가수분해가 끝난 밤송이에 74% H$_2$SO$_4$로 일차가수분해 시킨 후 1.5kg/㎤의 증기압하에서 40분간 가수분해 시킨 결과 원료에 대해서 49.3%의 당화율을 얻었으며 여기에 Candida utilis를 배양한 결과 당이용율은 60%이며 생성된 중량은 환원당의 62.47%이었다.

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