新型纺织柔软剂甘油酯季铵盐的生物降解性及应用

研究了自制甘油酯季铵盐纺织柔软剂2,3-二硬脂酰氧基丙基-三甲基氯化铵(CDESA)的生物降解性能.与传统柔软剂D1821进行了对比,得出CDESA为环境友好化合物,具有很好的生物降解性.细致研究了CDESA用于纺织柔软剂的柔软整理效果、泛黄性等性能.     

黑豆皮红色素微波辅助提取与乙醇浸提的工艺比较研究

目的确定黑豆皮红色素的最佳提取条件。方法通过单因素和正交试验确定优化工艺条件。结果采用微波提取功率为中火(385W)、体积比(1:1)的75%乙醇和0.1mol/L盐酸为提取剂、提取时间120s、提取次数2次,料液比1:40时,色素提取率可达98.1%。结论微波用于提取天然植物色素优于传统工艺。     

A comparison between olive oil and extra-virgin olive oil used as covering liquids in canned dried tomatoes: hydrolytic and oxidative degradation during storage

The hydrolytic and oxidative degradation of olive oil and extra‐virgin olive oil, used as covering liquids in canned dried tomatoes, was studied during storage by means of conventional (acidity, peroxide value, p‐anisidine value) and non conventional (polar compounds) analyses. The effects of the addition of spices were also considered. The hydrolysis and oxidation of olive oil increased faster and was higher than that of extra‐virgin olive oil in terms of absolute values but some other indices, such as percentage of oligopolymers and percentage of oxidized triglycerides, increased faster in extra‐virgin olive oil than in olive oil. The antioxidant effect given by a higher concentration of polyphenols in the extra‐virgin olive oil was shown by a reduced amount of secondary oxidation. However, olive oil and extra‐virgin olive oils showed similar behaviour in terms of peroxide formation.     

以胜浦服饰中"作腰"为例的中西围裙之比较

中西围裙体现了各自的风俗习惯和传统文化.胜浦水乡妇女服饰中的"作腰"是上千年来"稻作文化"沉淀的结果,也是中国传统文化发展的印证,有很高的艺术价值与实用价值.从"作腰"这一具体的"点"切入,通过对文献资料、相关馆藏实物与传世实物的查阅与研究,在材质的拼接、服从性、独立性与功能性等方面比较了中西围裙的相似性;又从形制、美...