Zhejiang Huakang Pharmaceutical Co., Ltd.

Zhejiang University

Changhui Hu

Mian Li

Jiaxing Luo

Shuncheng Fang

Aijuan Wu

Chengjun Liao

Wulong Yang

Qiang Wu

Yi Zheng

Weidong Xu

Mingqian Yang

Fangming Zeng

Lanlan Chen

Liangcong Yan

Zhiqian Liu

Xue Cai

Jing Wang

Xuhao Zeng

The present invention relates to a system for jointly producing erythritol and liquid sorbitol by using a corn starch, including a liquefaction tank, a saccharification tank, a filter and a nanofiltration assembly. The liquefaction tank is used to perform liquefaction for the corn starch, the saccharification tank is used to perform saccharification for the liquefied material, the filter is used to filter out impurities in the saccharified material to obtain a glucose liquid, and the nanofiltration assembly is used to perform nanofiltration for the filtered glucose liquid to respectively obtain a dialysate and a concentrate. The system further includes a fermentation and crystallization assembly for performing fermentation and crystallization for the dialysate to prepare crystalline erythritol, and a hydrogenation and evaporation assembly for performing hydrogenation and evaporation for the concentrate to prepare liquid sorbitol. The present invention further provides a method of jointly producing erythritol and liquid sorbitol by using a corn starch. The present invention not only improves the purity of erythritol but also obtains liquid sorbitol, thus improving the utilization value of the corn starch.

System and method for jointly producing erythritol and liquid sorbitol by using corn starch

The present invention provides a method of improving a biomass high-solid enzymatic hydrolysis rate. By screening particle sizes of the biomass substrate, different water content controls are performed on coarse and fine particle biomass substrates and then an entire water content of the mixture of the coarse and fine particle biomass substrates is controlled to achieve a reduced initial viscosity of the enzymatic hydrolysis and improve liquefaction speed, and finally improve the biomass high-solid enzymatic hydrolysis rate. The enzymatic hydrolysis system of the present invention can be easily constructed with lower equipment requirements, lower energy consumption, higher enzymatic hydrolysis efficiency and simpler operation process, helping the industrial production and applications.

Method of improving biomass high-solid enzymatic hydrolysis rate

The embodiments of the present disclosure provide a method for extracting xylose liquid and cellulose with high purity from corn straw. The method includes raw material screening, raw material preprocessing, alkali processing, acid hydrolysis, and gradient alkali processing. The embodiments of the present disclosure adopt a gradient selective refining method for extracting a high-purity xylose liquid and cellulose from the corn straw, so as to maximize the extraction of the xylose from the corn straw, and at the same time, to separate and extract a high-purity cellulose product from straw residue under a low-cost process processing.

Methods for extracting xylose liquid and cellulose with high purity from corn straw

The embodiments of the present disclosure provides a method of co-producing erythritol and arabinose by using a xylose mother liquor, wherein an extract and a raffinate are obtained by separating the xylose mother liquor through a first chromatography, the extract is configured to prepare crystallized xylose, the raffinate and the liquid glucose or crystallized glucose are blended and erythritol is produced by using awith high osmotolerant and a high conversion rate. erythritol crystals are obtained by centrifugation and crystallization first by using characteristics of low solubility degree and easy crystallization of the erythritol, the arabinose raffinate having a high content of arabinose is obtained by separating a centrifuged erythritol mother liquor through a second chromatography, and arabinose crystals are obtained based on the arabinose raffinate.

Methods for co-producing erythritol and arabinose by using xylose mother liquor

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Quzhou, China

Changhui Hu