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公开(公告)号：US20230357805A1
公开(公告)日：2023-11-09
申请号：US18354044
申请日：2023-07-18
发明人： Aijuan WU , Jiaxing LUO , Changhui HU , Mingqian YANG , Chengjun LIAO , Yi ZHENG , Shuncheng FANG , Mian LI
CPC分类号： C12P7/18 , C12N1/165 , C12P19/02 , C12R2001/85
摘要： The embodiments of the present disclosure provides a method of coproducing 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 a Yarrowia lipolytica with 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.
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公开(公告)号：US20210348244A1
公开(公告)日：2021-11-11
申请号：US17287887
申请日：2019-11-26
发明人： Songtao JIANG , Chengjun LIAO , Guowei LUO , Yuan ZHOU , Shuncheng FANG , Yi ZHENG , Xuesong JIANG , Xiaoyang ZHENG
摘要： Related to is a system for preparing xylose liquid by continuously hydrolyzing hemicellulose, including a neutralizing unit, an acid-adjusting unit, a feeding unit, a liquefaction ejecting unit, a feed and discharge heat-exchanging unit and a discharge controlling unit. The neutralizing unit includes a raw material tank, a neutralizing concentrated sulfuric acid pump and a neutralizing pipeline mixer, the acid-adjusting unit includes an acid-adjusting concentrated sulfuric acid pump, an acid-adjusting pipeline mixer and an acid-adjusting tank, the feeding unit includes a feed tank, the liquefaction ejecting unit includes a liquefaction ejector and a liquefaction maintainer, the feed and discharge heat-exchanging unit includes a plate-type teed and discharge heat exchanger and a first discharge temperature sensor, and the discharge controlling unit includes a discharge valve and a reflux valve. The obtained xylose liquid exchanges heat with the hemicellulose liquid in the plate-type feed and discharge heat exchanger to decrease a temperature of the xylose liquid, whereas a temperature of the hemicellulose liquid is increased. Further disclosed is a method using the system. The simultaneous feed and discharge heat exchanges greatly reduce energy consumption, and feed and exchange are continuously run, thereby improving the production efficiency and simplifying manual operations.
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