在使用拉曼光谱法处理的Polymorphospora lycopeni中定量烯
Shilong Li1, Xiaomin Duan1, Jiashan Liu1
1College of Life Sciences, Hebei University, Baoding 071002, Hebei Province, PR China.
Food chemistry
|March 11, 2026
概括
一种新的拉曼光谱法可以快速量化微生物中的甘. 这种技术使用优化的样本准备,加快了十倍的分析速度,以实现高效的胡卜素生物制造查.
科学领域:
- 微生物学 微生物学
- 频谱学是一种光谱学.
- 生物技术是生物技术.
背景情况:
- 利科是一种有价值的胡卜素,对微生物应用至关重要.
- 在像Polymorphospora lycopene A560这样的菌株中量化细胞内利科是具有挑战性的,因为有线状形态和光谱干扰.
- 现有的方法需要费力提取,耗时.
研究的目的:
- 开发一种基于拉曼光谱的快速,可靠的方法,用于细胞内烯定量.
- 为了优化样本准备以减少光谱变化和干扰.
- 为了能够对产生胡卜素的微生物菌株进行高通量选.
主要方法:
- 开发了一种拉曼光谱法,用于在Polymorphospora lycopene A560.0中量化莱科.
- 集成的机械均化与TiO2辅助样品制备.
- 使用的部分最小平方 (PLS) 回归使用特征性的拉曼峰 (1006,1156,1523厘米-1).
主要成果:
- 与未优化方法 (58%) 相比,实现显著降低的光谱变异性 (CV <8%).
- PLS回归模型显示出高的预测准确性 (R2 = 0.93,RMSECV = 3.60 mg/g).
- 该方法比光谱光度测量快10倍 (3分钟/样本),并确定了高产突变物 (42.05毫克/克干生物质) 具有95%的布兰德-阿尔特曼协议.
结论:
- 优化的拉曼光谱法提供了一个强大的平台,用于快速的细胞内利科量化.
- 这种方法消除了艰苦提取的需要,提高了胡卜素生物生产的效率.
- 该方法促进了高通量菌株选,以优化胡卜素产量.
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