The polymers are also able to protect the protein from proteases in the upper small intestine and can temporarily open the connections between intestinal cells, allowing the protein to pass through.

• 在小肠前段，这类聚合物还能保护蛋白质免遭蛋白酶的破坏，并且可以暂时拓宽肠细胞间的连接，好让蛋白质穿过。