CAJ | 학술논문

以果蔗皮为试验原料,采用响应曲面分析法(RSM)优化超临界CO_2萃取蔗皮二十八烷醇的工艺条件.在单因素试验的基础上,选取萃取压力、温度和时间为影响因子,应用Box - Behnken中心组合进行了3因素3水平的试验设计.验证了二次多项数学模型的有效性,并探讨了萃取压力、温度、时间对二十八烷醇萃取物产率的作用规律.统计分析表明压力、温度以及压力和时间的交互作用对二十八烷醇的提取量有显著影响.根据该模型进行了工艺参数的优选,试验所得二十八烷醇超临界CO_2萃取的优化工艺条件为:压力31.2MPa,温度44.8℃,时间226.17min,该条件下提取量高达7.5855mg/g.
이과자피위시험원료,채용향응곡면분석법(RSM)우화초림계CO_2췌취자피이십팔완순적공예조건.재단인소시험적기출상,선취췌취압력、온도화시간위영향인자,응용Box - Behnken중심조합진행료3인소3수평적시험설계.험증료이차다항수학모형적유효성,병탐토료췌취압력、온도、시간대이십팔완순췌취물산솔적작용규률.통계분석표명압력、온도이급압력화시간적교호작용대이십팔완순적제취량유현저영향.근거해모형진행료공예삼수적우선,시험소득이십팔완순초림계CO_2췌취적우화공예조건위:압력31.2MPa,온도44.8℃,시간226.17min,해조건하제취량고체7.5855mg/g.
Response surface methodology (RSM) was used for optimizing the extraction of octacosanol from sugar-cane skin. Based on single-factor experiments, three independent variables, namely: pressure, temperature and time were selected as affecting factors during extraction. The experiments were arranged according to Box-Behnken central composite experiment design. The model of a second order quadratic equation was established. The adequacy of the model equation for predicting the optimum response values was verified effectively. Effects of pressure, temperature and time on octacosanol yield were investigted. Statistical analysis of the experiment indicated that individual factors such as pressure, temperature, and interaction between pressure and time had very significant effects on octacosanol yield. The optimum conditions for octacosanol yield were found to be pressure 31.2MPa, temperature 44.8℃ and extraction time 226.17min at which the yield was 7.585 5mg/g.