在低成本基质粉上使用乌斯蒂拉戈物种建立一种伊塔科尼酸生产工艺
Philipp Ernst1, Astrid Wirtz1, Benedikt Wynands1
1Institute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428 Jülich, Germany.
FEMS yeast research
|July 22, 2024
概括
乌斯蒂拉戈牙虫可以通过使用葡萄糖胺酶和α-葡萄糖酶分解粉以促进生长和生产伊塔康酸盐. 乌斯蒂拉戈梅迪斯缺乏这种氨溶解能力,限制了其与粉原料的使用.
科学领域:
- 生物技术是生物技术.
- 微生物的新陈代谢
- 酶学 是一种酶学.
背景情况:
- 乌斯蒂拉戈物种是众所周知的有价值分子的生产者,例如itaconate.
- 这些真菌表现出对中等杂质的强度,并已被设计为增强生产.
- 之前的工作使用了替代原料,如糖蜜和糖醇,用于itaconate合成.
研究的目的:
- 研究Ustilago maydis和Ustilago cynodontis的氨溶解能力.
- 为了确定这些物种是否可以代谢粉,一种低成本的碳水化合物原料.
- 为了确定参与粉降解的酶,Ustilago物种.
主要方法:
- 在凝化土豆粉上种植Ustilago maydis和Ustilago cynodontis.
- 测量真菌生长和伊塔康酸盐的产生.
- 酶活性测定用于检测氨基解酶 (例如,α-amylase,glucoamylase,α-glucosidase).
主要成果:
- 乌斯蒂拉戈 (Ustilago cynodontis) 显示出使用粉的生长和酸盐生产.
- 在U. cynodontis中证实了细胞外氨解酶,并观察到快速的粉降解.
- 粉水解归因于葡萄糖胺酶和α-葡萄糖胺酶的协同作用,而不是α-胺酶.
- 乌斯蒂拉戈·梅迪斯 (Ustilago maydis) 没有在粉上表现出任何生长或可检测的氨基溶解活性.
结论:
- 乌斯蒂拉戈牙虫具有酶机制 (葡萄胺酶和α-葡萄糖酶),可以有效地降解用于生物技术应用的粉.
- 这种能力使U. cynodontis成为从粉原料中生产伊塔科纳酸和其他分子的有希望的候选人.
- 不同于U. cynodontis,Ustilago maydis不适合用于粉的利用.
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