Chinese Radish Juice as a Growth Substrate for the Production of Candida utilis ATCC 42416 Biomass

무즙을 이용한 Candida utilis ATCC 42416균체 생산

  • Published : 1995.06.01

Abstract

Chinese radish juice(CRJ) was used as a culture medium for the production of Candida utilis ATCC 42416 biomass. Soluble solid and total sugar contents of Chinese radishes were in the range between 5.5 and $8.8^{\circ}$Brix and 3.5 and 6.5%, respectively. Since sugar in radishes are in readily usable forms, pretreatm ent procedures were not necessary after the extraction of juice from fresh radishes. In shake flask experimetns, C. utilis ATCC 42416 grew well in CRJ and completed growth in 24 hrs at $30^{\circ}C$ and 200 rpm. Maximum cell dry weight obtainable from a liter of CRJ(1.0% sugar $DCRJ{\times}5$) was 21.5g, when the yeast was grown on CRJ diluted 5 times or more with tap water to make sugar content to be eual to or less than 1.0%. Supplementation of 5-fold diluted CRJ with some nutrients did not greatly influence the growth rate, yeast biomass production, or cell protein content significantly, indicating that CRJ itself was a good substrate for the production of biomass by C. utilis ATCC 42416.

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