| 摘要 |
A mutant Streptomyces thermoviolaceus, NRRL 15615, elaborates a thermostable glucose isomerase in high yield, constitutively. The GI produced shows a negligible loss in activity when heated at 90 DEG C. in high fructose corn syrup for 5 minutes relative to the same treatment at 80 DEG C. The mutant microorganism produces about 1500 units of glucose isomerase per gram of dry weight cells in the absence of xylose.
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