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。
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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第14期118-123,共6页
Food Science
基金
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)
关键词
火棘
碱水解
水不溶性膳食纤维
响应面分析
Fortuneana pyracantha
alkali-catalyzed hydrolysis method
insoluble dietary fiber
response surface analysis
