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Dyeing Behavior of Silk Proteins in Relation to Silkworm Diet

机译:蚕蛋白与家蚕饮食的染色行为

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We investigate the dyeing characteristics of silk propeins produced by silkworms reared entirely on an artificial (A) diet, and compare them with those of worms raised entirely on a mulberry leaf (M) diet. The artificial diet has tofu-cake as its main component. Two kinds of cocoons (A and M) are used as the original samples materials. The A and M raw silk samples are prepared from cocoon samples by the usual filature process. Sericin contents of the A and the M raw silk samples are 26 and 23.7, respectively. The A and the M fibroin samples are prepared from each raw silk sample by extracting the sericin proteins with 0.5 sodium carbonate at the boil fro 30 minutes. Dyeing experiments on the raw silk and the fibroin samples using an acid dye (CI Acid Orange 7, O-7) at pH 3.9 and 60 deg C show that the dyeing rate and dye concentration on the A fibroin are almost the same as those on the M fibroin samples. On the other hand, dye concentration on the A raw silk is much higher than that on the M raw silk smaples, meaning that the dye concentration on the A sericin is much higher than that on the M sericin.
机译:我们调查了完全以人工(A)饮食饲养的家蚕生产的蚕丝蛋白的染色特性,并将其与完全以桑叶(M)饮食饲养的蠕虫的染色比较。人工饮食以豆腐饼为主要成分。两种茧(A和M)用作原始样本材料。 A和M生丝样品是通过常规的ature丝工艺从茧样品中制备的。 A和M生丝样品的丝胶蛋白含量分别为26和23.7。从每个生丝样品中制备A和M纤维蛋白样品,方法是在30分钟的沸腾时间内用0.5碳酸钠提取丝胶蛋白。使用酸性染料(CI酸性橙7,O-7)在pH 3.9和60℃下对生丝和丝蛋白样品进行染色实验表明,A丝蛋白的染色速率和染料浓度与M丝蛋白样品。另一方面,A生丝上的染料浓度比M生丝上的染料浓度高得多,这意味着A丝胶上的染料浓度比M丝胶上的染料浓度高得多。

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