CAJ | 학술논문

用傅里叶变换红外光谱仪和圆二色谱仪对四种不同来源食用明胶的蛋白二级结构组成、重金属含量进行了分析。结果表明，四种食用明胶的二级结构均以β-sheet 为主，且含有β-turn 结构，其中鱼鳞明胶和猪皮明胶还含有大量的310-helix 结构，鱼皮明胶和猪皮明胶含有α-helix 结构，鱼鳞明胶和牛骨明胶的无序结构含量较高。四个明胶样品的重金属指标均符合国内相关标准，其中牛骨明胶的重金属含量最低，安全性最高。
용부리협변환홍외광보의화원이색보의대사충불동래원식용명효적단백이급결구조성、중금속함량진행료분석。결과표명，사충식용명효적이급결구균이β-sheet 위주，차함유β-turn 결구，기중어린명효화저피명효환함유대량적310-helix 결구，어피명효화저피명효함유α-helix 결구，어린명효화우골명효적무서결구함량교고。사개명효양품적중금속지표균부합국내상관표준，기중우골명효적중금속함량최저，안전성최고。
The protein secondary structure consisting of heavy metal content was analyzed by fourier trans-form infrared spectrometer and the circular dichroism spectroscopy for four different sources of edible ge-latin. The results showed that the protein secondary structure of the four edible gelatin were dominated byβ-sheet,and β-turn was also found. Fish-scale gelatin and pig-skin gelatin had a lot of 310-helix,fish-skin gelatin and pig-skin gelatin had many α-helix,Random existed in the fish-scale gelatin and beef-bone ge-latin. The heavy metal index of four samples conformed with national standards,the beef - bone gelatin with the least heavy metal content and the maximal security.