The reaction with dicarboxylic acid anhydrides results in an acid addition product, which alters the ratio of free basic to free acidic groups in gelatin, so as to lower the isoelectric point.
而二元酸酐酰化反应可改变氨基、羧基的比例，从而降低了明胶的等电点。
The reaction with dicarboxylic acid anhydrides results in an acid addition product, which alters the ratio of free basic to free acidic groups in gelatin, so as to lower the isoelectric point.
而二元酸酐酰化反应可改变氨基、羧基的比例，从而降低了明胶的等电点。
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