Fusarium moniliforme이 생산하는 셀룰라아제를 이용한 소두전분제조(小豆澱粉製造)

Production of Red Bean Starch Granule with Cellulase from Fusarium moniliforme

  • 조용권 (서울대학교 식품공학과) ;
  • 박관화 (서울대학교 식품공학과)
  • Cho, Yong-Kweon (Department of Food Science and Technology, College of Agriculture Seoul National University) ;
  • Park, Kwan-Hwa (Department of Food Science and Technology, College of Agriculture Seoul National University)
  • 발행 : 1986.03.30

초록

Fusarium moniliforme 액체배양으로부터 얻어진 조효소를 황산암모늄 분획침전, Sephadex G-25, Sephadex G-75, Sephadex G-150 및 DEAE-Sephadex A-50 컬럼크로마토그래피를 통하여 2개의 여지분해 효소와 2개의 ${\beta}-glucanase$를 분리하고 팥전분 제조에 이용하였다. 팥을 $50^{\circ}C$에서 2시간동안 섬유소 분해효소와 작용시킨 결과 효소처리구는 세포벽, 세포간극 그리고 전분입자간극이 일부 분해되었음을 알 수 있었다. 0.004 units/ml의 여지분해효소와 0.3 units/ml의 ${\beta}-glucanase$를 혼합 처리했을 때 팥전분 입자의 침강 속도가 최대가 되였고 0.004 units/ml의 여지분해효소와 0.2 units/ml의 ${\beta}-glucanase$를 혼합하여 처리했을 때 수율증가는 약 7%이었다. 증자후와 마쇄후의 폐수에서 혼탁물질은 효소처리구가 대조구보다 약 40% 정도 감소되었다.

Two fractions of ${\beta}-glucanase$(CMCase), two fractions of filter paper degradation enzyme (FPase) and one ${\beta}-glucanase$ fraction were partially purified from Fusarium moniliforme and applied to recovery process of red bean starch. Red bean were incubated with the fractions of CMCase and FPase at $50^{\circ}C$ for 2 hours and the starch granules are separated. Maximal sedimentation rate of red bean starch granules was obtained with treatment of the mixture solution of 0.004 units/ml of FPase and 0.3 units/ml of CMCase. In the enzyme treated process percent recovery of red bean starch granule increased about 7% and suspended solid in waste water was reduced about 40%, compared with those of control. The results indicated that red bean cell treated with cellulase fractions absorbed water more rapidly and specific gravity of starch granule increased.

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