食品科学 ›› 2009, Vol. 30 ›› Issue (4): 131-135.doi: 10.7506/spkx1002-6630-200904025

• 工艺技术 • 上一篇    下一篇

甘薯果胶提取工艺的研究

魏海香,梁宝东   

  1. 济宁学院生命科学与工程系
  • 收稿日期:2008-03-27 修回日期:2008-11-28 出版日期:2009-02-15 发布日期:2010-12-29
  • 通讯作者: 魏海香 E-mail:weihaixiang03@163.com

Study on Acid Extration Technology of Pectin from Sweetpotato Pomace

WEI Hai-xiang,LIANG Bao-dong   

  1. (Department of Life Sciences and Engineering, Jining University, Qufu 273155, China)
  • Received:2008-03-27 Revised:2008-11-28 Online:2009-02-15 Published:2010-12-29
  • Contact: WEI Hai-xiang, E-mail:weihaixiang03@163.com

摘要:

研究了从甘薯渣中酸提取果胶的最佳工艺。以果胶提取率为考察指标,在单因素试验的基础上,利用SAS 软件中的三因素二次旋转组合试验设计原理和响应面法,系统考察了pH 值、加热温度、加热时间等三个主要因素对果胶提取率的影响;确定了果胶酸提取最佳工艺:酸水解温度88℃,时间130min,pH1.8,提取率最高可达65.86%。

关键词: 甘薯渣, 果胶, 半乳糖醛酸, 提取

Abstract:

On the basis of single-factor test, quadratic orthogonal rotation combination test and response surface analysis were conducted to investigate effects of pH value, heating temperature and heating time on extraction ratio of pectin from sweetpotato pomace with acid. The results showed that the optimal extraction conditions are as follows: heating temperature 88 ℃, pH 1.8 and heating time 130 min, and the extraction ratio of pomace pectin reaches 65.86%.

Key words: sweet potato pomace, pectin, galacturonic acid, extraction

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