不同营养物质对脱落酸液体发酵产量的影响

考察了不同营养添加物及前体对脱落酸 (abscisicacid ,ABA)液体发酵的影响。在玉米粉、黄豆饼粉、燕麦、小米粉等不同营养添加物中 ,以添加玉米粉效果较好 ,产量可提高 35 .8% ;将碳源由单一的葡萄糖改变为蔗糖∶葡萄糖 =3∶2 ,可使产量提高 6 8.8% ;而在乙酸钠等二碳至五碳原子的不同前体添加物中 ,乙酸钠、丙酮酸钠、丁二酸钠、柠檬酸三钠盐等能提高脱落酸产量 ,而丙酸钙、氨基乙酸对脱落酸的生成有抑制作用 ,尤其是柠檬酸三钠盐对脱落酸产量影响最为显著 ,可使产量比对照提高 81.0 %。

Effects of Different Nutrients on Abscisic Acid Fermentation

The effects of different nutrients on abscisic acid(ABA) fermentation were studied. Among different additive such as corn powder, soybean powder, oats, etc, corn powder was the best one, which could improve ABA yield by 35.8%. When the carbon source was changed from glucose to saccharose and glucose (3:2) mixture, the yield increased 68.8%. In the different precursors, sodium caproate, sodium pyruvate, sodium succinate and sodium citrate could increase ABA production, but calcium propionate and amino acetic acid could inhibit ABA production. The most effective precursor was sodium citrate, which improved ABA 81.0% higher than the control.