黑曲霉突变体在不同pH值下由脂质生产草酸
Oxalic acid production from lipids by a mutant of Aspergillus niger at different pH.
作者信息
Rymowicz W, Lenart D
机构信息
Department of Biotechnology and Food Microbiology, Agricultural University of Wroclaw, Norwida 25, 50-375 Wroclaw, Poland.
出版信息
Biotechnol Lett. 2003 Jun;25(12):955-8. doi: 10.1023/a:1024082130677.
Crude rapeseed oil and post-refining fatty acids were used as substrates for oxalic acid production by a mutant of Aspergillus niger. Both the final concentration and the yield of the product were highest at pH 4 to 5. With a medium containing 50 g lipids l(-1), production reached a maximum of 68 g oxalic acid l(-1) after 7 d. A high yield of the product (up to 1.4 g oxalic acid g(-1) lipids consumed) was achieved with oil and fatty acids combined.
粗菜籽油和精炼后脂肪酸被用作黑曲霉突变体生产草酸的底物。产物的最终浓度和产量在pH 4至5时最高。在含有50 g脂质l(-1)的培养基中，7天后产量最高可达68 g草酸l(-1)。油和脂肪酸结合使用时，产物产量较高（每消耗1 g脂质最多可产生1.4 g草酸）。
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