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
