| 剑麻渣果胶提取工艺的研究 |
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| 引用本文： | 陈芳艳,王林川,杨艳,陈希,刘伟强.剑麻渣果胶提取工艺的研究[J].华南农业大学学报,2012,33(1):77-81. |
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| 作者姓名： | 陈芳艳 王林川 杨艳 陈希 刘伟强 |
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| 作者单位： | 1. 华南农业大学动物科学学院,广东广州,510642
2. 华南农业大学兽医学院,广东广州,510642 |
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| 摘 要： | 以剑麻渣为原料提取果胶,采用正交试验优化提取条件,并对剑麻果胶的分离及脱色进行研究,得出制备剑麻果胶的最佳工艺条件为:以2.2 mol.L-1的草酸-草酸铵缓冲溶液为提取剂,料液比为0.1 g.mL-1,时间90min,温度80℃,在pH4.0条件下用乙醇沉淀果胶,果胶产率为14.87%;用w为1.8%～2.4%的过氧化氢脱色,获得浅黄色果胶.理化性质研究表明,剑麻果胶为酯化度23%的低酯果胶,w(半乳糖醛酸)为66%,pH、灰分等指标均符合国家轻工行业标准.
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| 关 键 词： | 剑麻渣 果胶 提取 沉淀 脱色 |
| 收稿时间： | 2011/4/19 0:00:00 |
Extraction of Pectin from Sisal Residue |
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| CHEN Fang-yan,WANG Lin-chuan,YANG Yan,CHEN Xi and LIU Wei-qiang.Extraction of Pectin from Sisal Residue[J].Journal of South China Agricultural University,2012,33(1):77-81. |
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| Authors: | CHEN Fang-yan WANG Lin-chuan YANG Yan CHEN Xi and LIU Wei-qiang |
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| Institution: | 1(1 College of Animal Science,South China Agricultural University,Guangzhou 510642,China;2 College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642,China) |
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| Abstract: | The method of pectin extraction from sisal residue was optimized by orthogonal experiments,and pectin separation and decoloration were also studied.The optimized extraction conditions were as follows: 2.2 mol·L-1 oxalic acid-ammonium oxalate buffer as extracting agent,the solid to liquid ratio 0.1 g·mL-1,time 90 min,temperature 80 ℃.Pectin was precipitated by alcohol at pH 4.0;the yield of sisal pectin was 14.87%.The primrose yellow pectin was decolored by 1.8%-2.4% H2O2.The results of physicochemical property were that the degree of esterification of sisal pectin was 23%,galacturonic acid 66%,pH and ash all complying with Chinese light industey standards. |
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| Keywords: | sisal residue pectin extraction precipitation decoloration |
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