在超临界二氧化碳条件下使用米曲霉中的α-淀粉酶合成百里香糖苷。
Synthesis of thymol glycosides under SCCO2 conditions using amyloglucosidase from Rhizopus mold.
机构信息
Food Engineering Department, Central Food Technological Research Institute, (Council of Scientific and Industrial Research), Mysore, 570 020 Karnataka India.
Fermentation Technology and Bioengineering Department, Central Food Technological Research Institute, (Council of Scientific and Industrial Research), Mysore, 570 020 Karnataka India.
出版信息
J Food Sci Technol. 2013 Aug;50(4):803-8. doi: 10.1007/s13197-011-0385-1. Epub 2011 May 7.
Enzymatic synthesis of water soluble thymol glycosides were carried out using amyloglucosidase from Rhizopus mold under supercritical carbon dioxide (SCCO2) conditions of 120 bar pressure at 50 °C. Thymol 1 formed glycosides with D-galactose 2, D-mannose 3, D-fructose 4, D-ribose 5 and D-arabinose 6 in yields ranging from 20.6% to 54.2%. Spectral characterization studies revealed that the reaction occurred between the phenolic OH group of thymol and 1-O/2-O groups of D-fructose and C-1 group of D-galactose, D-mannose, D-ribose and D-arabinose resulting in monoglycosylated/arylated derivatives.
在 50°C、120 bar 压力的超临界二氧化碳 (SCCO2) 条件下，使用来自黑曲霉的支链淀粉酶，对水溶性麝香草酚糖苷进行酶法合成。麝香草酚 1 与 D-半乳糖 2、D-甘露糖 3、D-果糖 4、D-核糖 5 和 D-阿拉伯糖 6 形成糖苷，产率为 20.6%至 54.2%。光谱特征研究表明，反应发生在麝香草酚的酚羟基与 D-果糖的 1-O/2-O 基团和 D-半乳糖、D-甘露糖、D-核糖和 D-阿拉伯糖的 C-1 基团之间，生成单糖苷/芳基化衍生物。
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