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Cells contg. glucose-isomerase enclosed in cellulose ester - with magnesium cpd. gives compsn. of extended life for isomerisation of glucose to fructose
Cells contg. glucose-isomerase enclosed in cellulose ester - with magnesium cpd. gives compsn. of extended life for isomerisation of glucose to fructose
Cellulose ester, pref. diacetate or diacetate/triacetate mixt., platelets or filaments which enclose cells of a microorganism contg. glucose-isomerase contain =1 Mg cpd. which is slighty soluble in water. They can also contain a slightly soluble Co cpd. The microorganism can be Aerobacter cloacae, Arthrobacter, Bacillus coagulans, Lactobacillus brevis, Streptomyces sp. (phaeochromogenes, echinatus, flavovirens, achromogenes, albus, olivaceus, livochromogenes, violaceoniger, bikiniensis, venezuelae) or Actinoplanes missouriensis. The Mg cpd. is pref. the oxide, phosphate, basic carbonate, or their mixts. The Co cpd. is pref. the hydroxide, carbonate, orthophosphate or oxalate of CoII. The Co cpd. is present at up to 50% of their combined wt. Alternatively, Mg++ or Mg++/Co++ ions can be introduced by means of a dried and ground cation exchange resin carrying sulphonic gps. The compsn. has an extended life compared with previously used compsns. Also, little or no Mg++ ions need be added to the glucose syrup itself, and no Co++ ions. The Mg++ concn. in the fructose syrup obtd. is not 10 mg/l which is completely satisfactory in foodstuffs.
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机译：纤维素酯，优选。二乙酸盐或二乙酸盐/三乙酸盐混合物，包围微生物细胞的血小板或细丝。葡萄糖异构酶含有> = 1 Mg cpd。微溶于水。它们还可以包含微溶的Co cpd。微生物可以是阴沟杆菌，关节杆菌，凝结芽孢杆菌，短乳杆菌，链霉菌。 （嗜铬生殖细胞，紫锥菊，黄酮病毒，无色素生成物，阿不思，olivaceus，livochromogenes，紫堇，比基尼，委内瑞拉）或放线猕猴桃。镁cpd。是首选。氧化物，磷酸盐，碱性碳酸盐或其混合物。 Co cpd。是首选。 CoII的氢氧化物，碳酸盐，正磷酸盐或草酸盐。 Co cpd。最多占其总重量的50％或者，可以通过带有磺酸gps的干燥且磨碎的阳离子交换树脂引入Mg ++或Mg ++ / Co ++离子。该compsn。与以前使用的compsns相比，具有更长的使用寿命。另外，几乎没有或不需要Mg ++离子添加到葡萄糖浆本身，也不需要Co ++离子。 Mg ++ concn。在果糖糖浆中。不大于10 mg / l，这在食品中是完全令人满意的。
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