摘要
以无花果为试验原料，采用响应面分析法（Response Surface Methodology，RSM）建立超临界C02提取无花果多糖（FPS）得率的二次多项数学模型，验证数学模型的有效性，并探讨萃取温度（70-90℃）、压力（30-40MPa）时间（80～100min）三因素对FiX5得率的影响。根据该模型优化工艺参数。以FPS得率为指标，试验所得超临界CO2萃取最佳工艺条件：温度78．5℃，压力33．4MPa，时间96．2min。在该条件下做3次重复试验，FPS的实际平均得率高达17．31％。与预测值17．36％无显著差异。
Response surface methodology （RSM） was employed to optimize the process parameters of supercritical carbon dioxide（SC-CO2） extraction of the fig polysaccharide（FPS）. The adequacy of the model equation for predicting the optimum response values was verified effectively by the validation. Effects of temperature （70-90 ℃）, pressure （30-40 MPa）and time （80-100 min） on yield of FPS were investigated. The optimum parameters within the experimental ranges were determined to be at 78.5℃, 33.4 MPa and with 96.2 min. Under these conditions, the average value of the actual yield of the FPS in three replicated experiments is 17.31%, and this value is not significantly different from the value of 17.36% predicted by the model.
出处
《中国食品学报》
EI
CAS
CSCD
北大核心
2013年第7期46-52,共7页
Journal of Chinese Institute Of Food Science and Technology
基金
国家十一五科技支撑计划(2006BAD30B01)
关键词
无花果
多糖
超临界CO2
响应面法
工艺条件
fig fruit
polysaccharide
supercritical carbon dioxide
response surface methodology
technological conditions
