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。
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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.
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.