Recently, methyl donor role of betaine was further verified by clinical curative effect and biochemical experiment. Osmoprotective activity, methyl donor ability, anticoccidials ability of betaine and its beneficial effect to feed conversion enabled it as an extensively used feed additive.
甜菜碱作为参与生物渗透调节的优良保护剂受到人们的广泛关注，最近甜菜碱的甲基供体功能也得到了临床和生化实验的进一步验证，甜菜碱对肠胃的渗透调节功能、甲基供体功能以及抗球虫病和提高饲料的利用率的特性，使其成为良好的饲料添加剂。
参考来源 - 大肠杆菌胆碱脱氢酶基因在毕氏酵母（pichia pastoris）中的表达·2,447,543篇论文数据，部分数据来源于NoteExpress
Choline is essential for fat metabolism. Choline functions as a methyl donor and it is required for proper liver function.
胆碱是脂肪代谢的必需物质，它有甲基供体的功能，是肝脏发挥正常功能所必需的。
Betaine, as a efficient methyl donor and osmoprotectant, has led to new applications in animal feeding.
甜菜碱作为一种有效的甲基供体和抗应激剂，有明显的饲用效果。
The immobilized enzyme from Bacillis megaterium gave a better catalytic properties and the higher conversion was obtained using phenylglycine methyl ester (PGME) as acyl donor.
来源于巨大芽孢杆菌的固定化酶催化头孢克罗合成的能力较好，以苯甘氨酸甲酯（PGME）为底物较酰氨的效果好。
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