食品科学 ›› 2011, Vol. 32 ›› Issue (14): 118-123.doi: 10.7506/spkx1002-6630-201114024

• 工艺技术 • 上一篇    下一篇

响应面法优化火棘水不溶性膳食纤维提取工艺

李加兴1,梁先长2,黄 诚1,*,霍永鹏1,胡平平3,黄寿恩3   

  1. 1.吉首大学化学化工学院 2.林产化学加工工程湖南省重点实验室 3.中南林业科技大学食品科学与工程学院
  • 出版日期:2011-07-25 发布日期:2011-06-18
  • 基金资助:
    湖南省高校科技创新团队支持计划项目(湘教通〈2010〉212 号);吉首大学研究生科研项目(10JDY031)

Optimization of Extraction Technology for Insoluble Dietary Fiber from Fortuneana pyracantha Fruits by Response Surface Methodology

LI Jia-xing1,LIANG Xian-chang2,HUANG Cheng1,*,HUO Yong-peng1,HU Ping-ping3,HUANG Shou-en3   

  1. (1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China; 2. Key Laboratory of Hunan Forest Product and Chemical Industry Engineering, Zhangjiajie 427000, China; 3. College of Food Science and Engineering, Central South University of Forest and Technology, Changsha 410004, China)
  • Online:2011-07-25 Published:2011-06-18

摘要: 以火棘果为原料,采用碱水解法提取膳食纤维,通过单因素试验和响应面分析,探讨碱液质量分数、浸提时间、浸提温度和液料比对火棘水不溶性膳食纤维提取率和纯度的影响,并对提取工艺条件进行优化。结果表明,碱水解法提取火棘膳食纤维的最佳工艺条件为碱液质量分数1.00%、浸提时间3.00h、浸提温度77.8℃、液料比17:1(mL/g),在此工艺条件下水不溶性膳食纤维的提取率56.89%、纯度达到92.74%,表明该工艺可行。

关键词: 火棘, 碱水解, 水不溶性膳食纤维, 响应面分析

Abstract: The alkali-catalyzed hydrolysis method was applied to extract insoluble dietary fiber (IDF) from the fruits of Fortuneana pyracantha and main process conditions were optimized by one-factor-at-at-a-time experiments and response surface methodology. The extraction rate and purity of IDF were investigated with respect to NaOH concentration, extraction time, extraction temperature and material-to-liquid ratio. The results showed that the optimal extraction conditions were NaOH concentration of 1.00% (g/g), extraction time of 3.00 h, extraction temperature of 77.8 ℃, and material-to-liquid ratio of 1:17 (g/mL). Under the optimal extraction conditions, the extraction rate and purity of IDF were 56.89% and 92.74%, respectively.

Key words: Fortuneana pyracantha, alkali-catalyzed hydrolysis method, insoluble dietary fiber, response surface analysis

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