Interaction mechanism of collagen peptides with four phenolic compounds in the ethanol-water solution  

作　　者：Xian Liu Xia Li Zhangjun Huang Xuepin Liao Bi Shi 

机构地区：[1]Department of Biomass Science and Engineering,Sichuan University,610065 Chengdu,China [2]The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,610065 Chengdu,China [3]National Engineering Research Centre of Clean Technology in Leather Industry,Sichuan University,610065 Chengdu,PR China

出　　处：《Journal of Leather Science and Engineering》2021年第1期260-268,共9页皮革科学与工程（英文）

基　　金：The National Key R&D Program of China(2017YFB0308500).

摘　　要：This study demonstrated the interaction mechanism of collagen peptides(CPs)with 4-ethylphenol(4-EP),phenol,guaiacol,and 4-ethylguaiacol(4-EG)in the ethanol-water solution.The ultraviolet visible spectroscopy,zeta potential tests and hydrogen nuclear magnetic spectroscopy manifested that CPs interacted with the phenolic compounds.Meanwhile,Isothermal titration calorimetry determination indicated that the CPs was hydrogen bonded with 4-EP in 52%(v/v)ethanol-water solution,while the hydrophobic forces played a major role in the interaction of CPs with guaiacol and 4-EG,respectively.Moreover,hydrogen and hydrophobic bonds were involved in the interaction between CPs and phenol.Finally,Head Space-solid Phase Microextraction Gas Chromatography Mass Spectrometry analysis indicated that the content of phenolic compounds in model solution efficiently decreased with the presence of CPs.In the real liquor,it was found that the content of volatile compounds(including phenolic compounds)was obviously decreased after CPs added.

关 键 词：Ethanol-water solution Collagen peptides Phenolic compounds Interaction mechanism Volatile compounds LIQUOR 

分 类 号：O62[理学—有机化学]