方法：以磷酸化的PVA 海藻酸钙为载体包埋黑曲霉细胞，与固定化的葡萄糖异构酶协同反应，以蔗糖为原料转化生产低聚果糖。
Methods: Aspergillus niger cells entrapped by modified phosphorylated polyvinyl alcohol(PVA) alginate gel co react with immobilized glucose isomerase to transfer sucrose to FOS.
论文分别研究了木钙、糖钙、酒石酸、焦磷酸钠和蔗糖共五种常用缓凝剂对水泥净浆凝结时间、混凝土凝结时间及强度的影响。
The effects of five common set-retarders on setting time of cement paste and concrete and strength of concrete are studied.
微晶纤维素，蔗糖脂肪酸酯，磷酸氢钙，二氧化硅，甲基纤维素。
Microcrystalline cellulose, sucrose fatty acid esters, dicalcium phosphate, silicon dioxide, methylcellulose.
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