AIM: to investigate the basic ingredient of peptide of swine blood, and to observe its reduction capacity and the effect in scavenging active oxygen.
目的：了解猪血多肽的基本成分，观察其还原能力与清除活性氧的效果。
Ntrimethyl chitosan chloride, a partially quaternised derivative of chitosan, which is soluble in neutral and basic environment, can be used as an absorption enhancer of oral peptide drugs.
氯化N-三甲基壳聚糖是壳聚糖的部分季铵化衍生物，能溶于中性及碱性环境中，可作为肽类药物的口服吸收促进剂。
Being a small peptide molecule, protamine's basic structure can be destroyed and it's antimicrobial efficacy largely affected by some protein enzymes like chymotrypsin, trypsin, papain and pepsin.
鱼精蛋白是小分子肽，有些蛋白酶如胰凝乳蛋白酶、胰蛋白酶、木瓜蛋白酶、胃蛋白酶可分解它，使其一级结构受到破坏，从而影响它的抗菌活性。
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