Zhejiang Huakang Pharmaceutical Co., Ltd.

Zhejiang University

Jiaxing Luo

Mian Li

Changhui Hu

Chengjun Liao

Shuncheng Fang

Aijuan Wu

Yuguo Zheng

Zhiqiang Liu

Wulong Yang

Qiang Wu

Yi Zheng

Xiaojian Zhang

Weidong Xu

Yuan Zhou

Mingqian Yang

Guowei Luo

Songtao Jiang

Zhiqian Liu

Jun Zhuge

Yuqing Cheng

Xinfeng Han

Shengrong Chen

Liangcong Yan

Lanlan Chen

Fangming Zeng

Deshui Chen

Xinping Cheng

Baoxing Mao

Xiuxiu Wang

Zhiyao Wei

Cui Lin

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 relates to a system for reducing a content of 5-hydroxymethylfurfural in a high fructose syrup, including an ion exchange positive column and an ion exchange negative column for performing cation and anion removals in sequence for an F42 high fructose syrup obtained by performing isomerization and first decolorization, a heat exchanger for performing heat exchange and temperature reduction for an F55 high fructose syrup obtained by performing concentration, chromatographic separation, blending and second decolorization in sequence for the F42 high fructose syrup subjected to ion exchange, a mixed bed column for performing purification for the heat-exchanged F55 high fructose syrup, and an evaporation tank for performing concentration for the F55 high fructose syrup subjected to mixed bed treatment. The present invention further provides a method of reducing a content of 5-hydroxymethylfurfural in a high fructose syrup. In the present invention, optimization is performed for ion exchange and operation modes and parameters of the mixed bed such that the HMF content in the high fructose syrup product is reduced in a case of ensuring the quality of the high fructose syrup product, thus improving the quality of the high fructose syrup product.

System and method for reducing content of 5-hydroxymethylfurfural in high fructose corn syrup

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

Related to are a device and a method for performing continuous carbonation and impurity removal for xylose mother liquor. The device includes an alkali addition unit, a continuous carbonating unit, a discharge controlling unit, a COsupply station, a vapor station and an after-carbonation tank, wherein the alkali addition unit is configured to add Ca(OH)alkaline liquid into xylose mother liquor, the continuous carbonating unit is configured to introduce COsupplied from the COsupply station into the alkali-added xylose mother liquor to perform carbonation and mixing so as to remove impurities such as colloid and pigment in xylose mother liquor, the discharge controlling unit is configured to introduce COsupplied from the COsupply station and vapor transported from the vapor station into the carbonated xylose mother liquor so as to control and stabilize a pH value of the carbonated xylose mother liquor, and the after-carbonation tank is configured to collect and temporarily store the carbonated and impurity-removed xylose mother liquor so as to prepare for a next procedure. Further, a method using the device is disclosed. According to the device and the method, the pH of xylose mother liquor is continuously regulated and stabilized and continuous feeding and discharge are performed with highly automated device so as to achieve continuous and uninterrupted production, and thus facilitate improving the production efficiency.

Device and method for performing continuous carbonation and impurity removal for xylose mother liquor

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Zhejiang, China

Jiaxing Luo