摘要
采用明胶和聚乙烯比咯烷酮(PVP)对蓝莓汁进行单宁的吸附研究。明胶吸附正交实验结果表明,明胶吸附单宁类多酚物质的最佳条件为:作用温度30℃,作用时间30 min,按10 mL/dL添加质量分数为1%明胶溶液。单宁的脱除率可达65.60%。PVP吸附正交实验结果表明:PVP吸附单宁类多酚物质的最佳条件为:作用温度30℃,作用时间25 min,添加量5 g/L。单宁的去除率可达74.48%。
In this study,the optimum conditions of gelatin and PVP to remove tannin in Blueberry juice were determined by orthogonal experiment.The optimum conditions for gelatin to adsorb tannin was listed as follows：adsorption temperature 30℃,adsorption time 30min,the dosage of 1%gelatin solution 10 mL/dL.The optimum conditions for PVP was as follows：adsorption temperature 30℃,adsorption time 25 min,thedosage of PVP 5 g/L.By employed those optimum conditions,the tannin removal rate achieved at 65.60%and 74.48%,respectively.
出处
《食品与生物技术学报》
CAS
CSCD
北大核心
2010年第6期847-853,共7页
Journal of Food Science and Biotechnology
基金
国家自然科学基金项目(20776062)
关键词
蓝莓汁
单宁
明胶
PVP
blueberry juice
tannin
gelatin
PVP
