The results showed that to feed batch culture can enhance enzyme productivity by 7.0 % with high methoxyl pectin as substrate, and by 2 3.5 % with low methoxyl pectin as substrate.
结果表明：通过分批补料对酶产率有提高，以高酯果胶为底物酶产率提高7.0 % ，以低酯果胶为底物酶产率提高2 3.5 % ；
Citrus peels are a promising commercial source for high -methoxyl pectin.
桔皮是一种理想的高酯果胶原料。
The pectin in most plants is the high methoxyl pectin, so the low-methoxy pectin has to be prepared by reducing the degree of esterification.
自然界大多数植物中的果胶为高甲氧基果胶，需通过降低其酯化度制备低甲氧基果胶。
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