浓缩乳清强化对克鲁维酵母属生长的影响

Effect of fortification of concentrated whey on growth of Kluyveromyces sp.

作者信息

Kar T, Misra A K

机构信息

Department of Dairy Bacteriology, Faculty of Dairy Technology, West Bengal University of Animal and Fishery Sciences, Mohanpur, Nadia, India.

出版信息

Rev Argent Microbiol. 1998 Oct-Dec;30(4):163-9.

PMID:9950037

Abstract

The effect of fortification of concentrated whey with 0.5% inorganic nitrogen viz. NH4Cl, (NH4)2SO4, NaNO3 and urea, organic nitrogen viz. tryptone, tryptose, peptone and yeast extract and 0.1% metal ions viz. K2HPO4, MgSO4 and FeSO4, on growth stimulation of Kluyveromyces marxianus subsp. marxianus NRRL Y-665, NRRL Y-1195, NRRL Y-2415 and Kluyveromyces marxianus subsp. lactis NRRL Y-1193 were studied. Supplementation with 0.5% (NH4)2SO4, peptone, yeast extract or 0.1% K2HPO4 individually increased the biomass production by 8-20%, 17-25%, 13-14% and 14-17%, respectively. Addition of 0.5% each of (NH4)2SO4, peptone, yeast extract and 0.1% K2HPO4 together is recommended to increase the biomass production by 81-98% for commercial production of single cell protein.

摘要

研究了用0.5%的无机氮（即氯化铵、硫酸铵、硝酸钠和尿素）、有机氮（即胰蛋白胨、胰蛋白示、蛋白胨和酵母提取物）以及0.1%的金属离子（即磷酸氢二钾、硫酸镁和硫酸亚铁）强化浓缩乳清对马克斯克鲁维酵母亚种马克斯克鲁维酵母NRRL Y - 665、NRRL Y - 1195、NRRL Y - 2415以及马克斯克鲁维酵母亚种乳酸克鲁维酵母NRRL Y - 1193生长刺激的影响。单独添加0.5%的硫酸铵、蛋白胨、酵母提取物或0.1%的磷酸氢二钾，分别使生物量产量提高了8 - 20%、17 - 25%、13 - 14%和14 - 17%。建议同时添加0.5%的硫酸铵、蛋白胨、酵母提取物和0.1%的磷酸氢二钾，以将单细胞蛋白商业化生产的生物量产量提高81 - 98%。