摘要
对栀子皮提取果胶的方法进行了研究,先用水提取水溶性果胶,再用酸水解法提取水不溶性果胶。用正交试验法优化了水不溶性果胶提取工艺。最佳工艺条件为:pH值1~1.5。温度90℃,时间120min,水料比8.25:1(mL:g)。水溶性果胶得率13.2%,水不溶性果胶得率14.1%,总得率27.3%。本方法提取的果胶甲氧基含量为4.93%,果胶含量为82.4%。
A study on extraction of :pectin from gardenia peel was carried out. Water-soluble pectin was extracted with water first, then acid hydrolysis was used to extract water-insoluble pectin. The orthogonal experiment optimized the extraction process of water-insoluble pectin, The optimum extraction condition is : ratio of water to material 8.25 : 1 at 90 ℃ for 120 rain with pH value 1-1,5. The yield of water-soluble pectin is 13, 2 % , yield of water-insoluble is 14, 1% , and total yield is 27.3 %. The pectin product extracted by this process contains methoxyl in a fraction of 4.93 % and pectin in a fraction of 82.4 %.
出处
《林产化学与工业》
EI
CAS
CSCD
2007年第3期103-106,共4页
Chemistry and Industry of Forest Products
关键词
栀子皮
果胶
提取
gardenia peel
pectin
extraction