作　　者： ; ; ; ;

机构地区： 华南农业大学艺术学院

出　　处： 《华南农业大学学报》 2002年第4期8-10,共3页

摘　　要： 探讨了脱胶丝素经盐溶解后进行碱水解时 ,不同条件对丝素水解程度及不同水解程度丝素肽对蚕血黑色素生成的抑制能力的影响 .结果发现 ,温度对丝素的水解程度影响最大 ,时间其次 ,浓度的影响最小 ;丝素蛋白液未水解时 ,其对黑色素抑制率很低 ,只有 2 8.34% ,而丝素水解后 ,抑制率迅速提高到 4 8.95 % ,并且随着水解程度的加深不断提高 ,当氨基氮浓度达 0 .4 76 5g·L-1时 ,其对黑色素生成抑制率达最高值 6 7.14 % ;之后 ,随着水解程度的增加 ,其黑色素生成抑制率反而下降 . The affection of different factors on the hydrolytic degree of silk fibroin peptide and the inhibiting ability formation of block pigmend of silkworm blood were studied while the silkworm cocoon was treated by gegumming, salt dissolution and alkali hydrolysis.The result showed that temperature had the most greatly influence to the hydrolytic degree of silk fibroin peptide, second factor was time, the concentration had the least influence. The inhibition ratio was only 28 34% when the silk protein was unhydrolytic, but it could rapidly reach to 48 95% when the silk fibroin was hydrolyzed. The highest value of the inhibition ability ratio for the formation of the black pigment was 67 14% while the hydrolytic degree of silk fibroin peptide was 0 476 5 g/L. Then, the inhibition ratio of the formation of the black pigment was reduced with the increase of the hydrolytic degree of silk fibroin peptide.

关 键 词： 水解程度 丝素肽 黑色素 生成抑制能力 碱水解 氨基氮 蚕丝

领　　域： [农业科学] [农业科学]