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首页> 外文期刊>Process Biochemistry >Eucalyptus hydrolysate detoxification with activated charcoal adsorption or ion-exchange resins for xylitol production
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Eucalyptus hydrolysate detoxification with activated charcoal adsorption or ion-exchange resins for xylitol production

机译：活性炭吸附或离子交换树脂对木糖醇生产的桉树水解产物进行解毒

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摘要

Eucalyptus hemicellulosic hydrolysate used for xylitol production by Candida guilliermondii FTI20037 was previously treated either with ion-exchange resins or with activated charcoal adsorption combined with pH adjustment, in order that acetic acid, furfural and hydroxymethyl-furfural could be removed. The best results for xylitol yield factor (0.76 g/g) and volumetric productivity (0.68 g/(l h) were attained when a three-fold concentrated hydrolysate was treated with ion-exchange resins. Using activated charcoal combined with pH adjustment for treating a three-fold concentrated hydrolysate resulted in a xylitol yield factor of 0.40 g/g and a volumetric productivity of 0.30 g/(l h). This same treatment applied to a six-fold concentrated hydrolysate resulted in a xylitol yield factor of 0.66 g/g and a volumetric productivity of 0.50 g/(l h).
机译：预先用离子交换树脂或活性炭吸附结合pH值处理了念珠菌FTI20037用于生产木糖醇的桉树半纤维素水解产物，以除去乙酸，糠醛和羟甲基糠醛。用离子交换树脂处理三倍浓缩水解液时，木糖醇得率（0.76 g / g）和容积生产率（0.68 g /（lh））的最佳结果。三倍浓缩水解物产生的木糖醇产率为0.40 g / g，体积生产率为0.30 g /（lh），对六倍浓缩水解产物进行的相同处理得到的木糖醇产率为0.66 g / g体积生产率为0.50 g /（lh）。

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