首页> 外文期刊>Biotechnology Progress >Recovery of E,E-Farnesol from Cultures of Yeast erg9 Mutants: Extraction with Polymeric Beads and Purification by Normal-Phase Chromatography
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Recovery of E,E-Farnesol from Cultures of Yeast erg9 Mutants: Extraction with Polymeric Beads and Purification by Normal-Phase Chromatography

机译:从酵母erg9突变体的培养物中回收E,E-法尼醇:用聚合物微珠提取并通过正相色谱法纯化

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摘要

Saccharomyces cerevisiae erg9 mutants blocked at squalene synthase require ergosterol for growth and produce E,E-farnesol. Typically,at least half the amount of farnesol remains cell associated. Practically insoluble in water,farnesol can be extracted from production cultures of the erg9 mutants using either methanol/hexane or poly(styrene-co-divinylbenzene) beads. The first method consumes more solvents and requires centrifugation to clear an interface emulsion. The second method uses 50% less solvent and the beads can be used repeatedly for extraction. The solvent-free crude extract from the beads extraction contained higher concentration of farnesol (76-77%) than that from the solvent extraction (61-65%). Farnesol was obtained after normal-phase chromatography in high overall recovery (94%) and purity (99%).
机译:角鲨烯合酶封闭的酿酒酵母erg9突变体需要麦角固醇才能生长并产生E,E-法尼醇。通常,至少一半的法尼醇保持与细胞结合。法尼醇实际上不溶于水,可以使用甲醇/己烷或聚(苯乙烯-共二乙烯基苯)珠子从erg9突变体的生产培养物中提取出法尼醇。第一种方法消耗更多的溶剂,需要离心清除界面乳液。第二种方法使用的溶剂减少了50%,并且珠子可重复用于提取。珠提取中的无溶剂粗提物中的法呢醇浓度较高(76-7%),溶剂提取中的无溶剂粗提物中含量较高(61-65%)。正相色谱后获得法尼醇,具有较高的总回收率(94%)和纯度(99%)。

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