D-阿洛酮糖固定化酶的制备及色谱分离系统的优化
Preparation of Allulose Immobilized Enzyme and Optimization of Chromatographic Separation System
窦光朋 1刘茜琼 1杜倩 1黄欣 1董晶宁1
作者信息
- 1. 山东百龙创园生物科技股份有限公司,山东 德州 251200
- 折叠
摘要
D-阿洛酮糖是一种理想的低热量甜味剂,主要通过D-阿洛酮糖 3-差向异构酶(D-Allulose 3-Epimerase,DAEase)进行制备.为了实现大规模、高效的商业化生产,以Co2+型树脂为固定化载体、壳聚糖溶液对DAEase进行交联,得到固定化酶;利用固定化酶和凝胶型聚苯乙烯钙型色谱树脂的色谱分离系统进行阿洛酮糖料的制备,确定影响转化率的关键因素并进行优化.本研究结果有助于提高D-阿洛酮糖的生产效率,并为未来D-阿洛酮糖的大规模生产提供潜在的固定化酶策略.
Abstract
D-Allulose is an ideal low-calorie sweetener,mainly prepared by using D-allulose 3-epimerase(DAEase).In order to achieve large-scale and efficient commercial production,Co2+resin was used as immobilized carrier and chitosan solution was cross-linked to DAEase to obtain immobilized enzyme.The chromatographic separation system of immobilized enzyme and gel-type polystyrene calcium chromatographic resin was used to prepare allulose.The key factors affecting the conversion rate were determined and optimized.The results of this study may contribute to the cost reduction of d-Allulose industrial production and provide a potential immobilized enzyme strategy for future large-scale manufacturing of d-Allulose.
关键词
阿洛酮糖/固定化酶/色谱分离系统/参数优化Key words
psicose/immobilized enzyme/chromatographic separation system/parameter optimization引用本文复制引用
基金项目
2022年国家重点研发计划(绿色工业酶催化合成营养化学品关键技术)项目子课题(2022YFC2104904)
出版年
2024
NETL
NSTL
万方数据