Since isolation of oligosaccharides is tedious and enzymatic preparation of oligosaccharides is also problematic, chemical synthesis of oligosaccharides is the most popular approach at current stage.
鉴于通过分离手段得到所需的糖链很困难，酶法合成糖链亦存在着诸多问题，因此目前化学方法合成糖链是最佳的选择。
Many methods were investigated for the synthesis of the single enantiomer of the chiral intermediate, including chemical resolution, chemical asymmetric synthesis and chemo-enzymatic synthesis.
研究人员采用多种方法合成单一构型的地尔硫卓手性中间体，其中包括化学拆分、化学不对称合成以及化学-酶法合成等方法。
As compared with chemical synthesis, microbial fermentation and other methods, enzymatic conversion has the broadest prospect and is the most economic one.
肉碱的生产方法有化学合成、微生物发酵、微生物酶法转化等，其中微生物酶法转化被认为是一种最经济且最有前途的方法。
As compared with chemical synthesis, microbial fermentation and other methods, enzymatic conversion has the broadest prospect and is the most economic one.
肉碱的生产方法有化学合成、微生物发酵、微生物酶法转化等，其中微生物酶法转化被认为是一种最经济且最有前途的方法。
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