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

• Processing Technology • Previous Articles     Next Articles

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

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

CLC Number: