Culture conditions for yellow pigment formation byMonascus sp. KB 10 grown on cassava medium
Culture conditions for yellow pigment formation byMonascus sp. KB 10 grown on cassava medium
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DOI：
10.1007/bf00656524
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发表时间：
1993
影响因子：
4.1
通讯作者：
B. Yongsmith;W. Tabloka;W. Yongmanitchai;R. Bavavoda
中科院分区：
文献类型：
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作者：
B. Yongsmith;W. Tabloka;W. Yongmanitchai;R. Bavavoda
从商品发酵豆腐(腐乳)中分离出一株红曲霉，并在木薯基质上进行培养。在初始pH为7.0的条件下，可得到橙红色的色素，但当初始pH低于4时，可得到淡金黄色的色素。在含有3%木薯淀粉、0.4%蛋白胨和0.1%谷氨酸，初始pH为2.5的条件下，该色素的最适培养基组成为木薯淀粉，在330 nm处有一最大吸收。对纯化后的黄色素进行了光谱分析，结果表明该色素为红曲霉素-红曲黄素-红腐素骨架。
An isolate ofMonascus, from a commercial, fermented soybean curd (sufu) was grown on a cassava medium. With medium at an initial pH of 7.0 an orange-red pigmentation was produced but with an initial pH below 4, a light golden pigment was obtained. A medium containing, w/v, 3% cassava starch, 0.4% peptone and 0.1% glutamic acid, with an initial pH of 2.5 was optimal for the production of this yellow pigment, which had a single maximum absorption spectrum at 330 nm. The spectroscopic characterization of the purified yellow pigments demonstrated a monascin-ankaflavin-monascorubrin skeleton.