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| 稳定性考察表明，A在505nm处的吸光度不受温度，时间，pH值等影响。以505nm处的吸光度为指标，考察了温度，时间，pH值，乙醇浓度对儿A提取效果的影响，确定A的提取条件为70℃，40min，pH=10．以A和三氯化铁等为主要原料，考察了染色温度，时间，pH值等对白色牦牛毛染色效果的影响。结果表明，在pH为9，温度60℃，染色时间为30min的条件下，可将白色牦牛毛染为蓝色。A已被列为食品添加剂增补品种，本实验结果表明A作为天然无毒染发剂的主成分具有良好的应用前景。 |
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★ ★ ★ ★ ★ ★ ★ ★ ★ ★
gaohaiyan(金币+10,VIP+0):谢谢你的热心，呵呵 7-12 15:09
gaohaiyan(金币+10,VIP+0):谢谢你的热心，呵呵 7-12 15:09
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稳定性考察表明，A在505nm处的吸光度不受温度，时间，pH值等影响。以505nm处的吸光度为指标，考察了温度，时间，pH值，乙醇浓度对儿A提取效果的影响，确定A的提取条件为70℃，40min，pH=10．以A和三氯化铁等为主要原料，考察了染色温度，时间，pH值等对白色牦牛毛染色效果的影响。结果表明，在pH为9，温度60℃，染色时间为30min的条件下，可将白色牦牛毛染为蓝色。A已被列为食品添加剂增补品种，本实验结果表明A作为天然无毒染发剂的主成分具有良好的应用前景。 Stability analysis showed that absorbance of A at 505nm had nothing with temperature, time, pH value, etc. Taken absorbance at 505nm as indicator, the impacts of some factors such as temperature, time, pH, ethanol concentration on extraction of A were studied. The optimization condition was to extract A at 70℃, 40min, pH=10. Then A and ferric chloride were selected to be as the main raw materials and this study also determined the key performances of dyeing temperature, time, and pH value to white yak hair coloration. The results showed that at pH=9, temperature 60℃, 30min for staining, a white yak hair could be dyed into blue. A has been classified as supplement in a food additive species. The experimental results showed that A, as main component of natural non-toxic dyes, will possess an excellent prospect in application. |
3楼2009-07-10 18:22:12
2楼2009-07-10 18:20:56
4楼2009-07-10 18:23:31
★ ★ ★ ★ ★
qingfeng877680(金币+0,VIP+0):兄弟，看到你常来翻译互助版应助，感谢你的支持，但是，若是用翻译工具翻译的内容，请在帖子前标明【机器翻译】，谢谢您的合作！ 7-11 15:25
gaohaiyan(金币+5,VIP+0):谢谢你的热心 7-12 15:09
qingfeng877680(金币+0,VIP+0):兄弟，看到你常来翻译互助版应助，感谢你的支持，但是，若是用翻译工具翻译的内容，请在帖子前标明【机器翻译】，谢谢您的合作！ 7-11 15:25
gaohaiyan(金币+5,VIP+0):谢谢你的热心 7-12 15:09
| Stability study shows that, A Division of the absorbance at 505nm from the temperature, time, pH value and so on. Department of absorbance to 505nm as an index of temperature, time, pH, ethanol concentration on the extraction of abuse effects of A to determine the extraction conditions for A to 70 ℃, 40min, pH = 10. To A and ferric chloride as the main raw material, etc., visited the dyeing temperature, time, pH value of the white yak hair coloring effect. The results showed that in pH 9, temperature 60 ℃, time for staining under the conditions of 30min, a white Yak hair can be dyed blue. A has been identified as a food additive added to the species, the experimental results show that as a natural non-toxic dyes A principal component of a good application prospects. |
5楼2009-07-11 14:34:44
