Method of producing L-arabinose by xylose mother liquid
A technology for mother liquor of arabinose and xylose, which is applied in the direction of preparation of sugar derivatives, sugar derivatives, sugar derivatives, etc., can solve the problem of complex L-arabinose process, poor continuous and stable production performance, and low yield of L-arabinose Poor and other problems, to achieve the effect of less production flow capital, easy waste carbon treatment, and low equipment investment cost
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Embodiment 1
[0028] The indicators of xylose mother liquor, a by-product of crystallized xylose produced by bagasse: weight 8.8Kg, refraction 60.15%, light transmission 5.6%, conductivity 503us / cm, high performance liquid chromatography analysis of glucose content in xylose mother liquor 10.47%, xylose Content 60.71%, L-arabinose content 13.68%. Add pure water to dilute it at 45°C and stir at 120 rpm. After dilution, the indicators of the material liquid are measured: light transmission 13%, pH 4.67, conductivity 1692us / cm, refractive index 20%. Add active dry yeast powder according to 0.2% of the weight of the diluted feed liquid. The pH of the feed liquid is natural. Instrument or high-performance liquid chromatography to detect the glucose content, when the grape content is less than 1%, the fermentation is terminated, the fermentation liquid is vacuum filtered with a Buchner funnel to recover the yeast, and the filtrate is collected for later use. The measured refraction of the filtra...
Embodiment 2
[0030] The by-product xylose mother liquor 9.5Kg when sugarcane bagasse produces xylose, refraction 60%, transmittance 4.88%, conductance 500us / cm, high performance liquid chromatography analyzes the glucose content in the xylose mother liquor 10.5%, xylose content 60.53%, The content of L-arabinose is 13.72%. Add pure water to dilute it at 45°C and stir at 120 rpm. After dilution, the indicators of the material liquid are measured: light transmission 12.7%, pH 4.50, conductivity 1806us / cm, refractive index 20.52%. Add active dry yeast powder according to 0.2% of the weight of the diluted feed liquid. The pH of the feed liquid is natural. Instrument or high-performance liquid chromatography to detect the glucose content, when the grape content is less than 1%, the fermentation is terminated, the fermentation liquid is vacuum filtered with a Buchner funnel to recover the yeast, and the filtrate is collected for later use. The measured refraction of the filtrate was 20.13%, pH ...
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