广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2011年
14期
65-66,98
,共3页
中心复合设计%玉竹多糖%多糖提取
中心複閤設計%玉竹多糖%多糖提取
중심복합설계%옥죽다당%다당제취
central composite design%polysacchafides of polygonatum odoratum%extracting polysacchafides of polyg- onatum odoratum
选用二阶旋转中心复合设计法优化玉竹多糖提取工艺。以提取时间，提取温度，料液比为因变量，以玉竹多糖得率（Y）为自变量，分别用两因素相互作用模型和二次多项式模型描述因变量和自变量之间的数学关系，绘制等高线图，确定较优处方并进行验证试验。优化后的提取工艺为提取时间111min，提取温度76℃，料液比1：18．5，在此优化的艺条件下玉竹多糖得率为8．76％。实际测得的平均得率8．82％，与理论预测值相比，其相对误差约为0．68％。
選用二階鏇轉中心複閤設計法優化玉竹多糖提取工藝。以提取時間，提取溫度，料液比為因變量，以玉竹多糖得率（Y）為自變量，分彆用兩因素相互作用模型和二次多項式模型描述因變量和自變量之間的數學關繫，繪製等高線圖，確定較優處方併進行驗證試驗。優化後的提取工藝為提取時間111min，提取溫度76℃，料液比1：18．5，在此優化的藝條件下玉竹多糖得率為8．76％。實際測得的平均得率8．82％，與理論預測值相比，其相對誤差約為0．68％。
선용이계선전중심복합설계법우화옥죽다당제취공예。이제취시간，제취온도，료액비위인변량，이옥죽다당득솔（Y）위자변량，분별용량인소상호작용모형화이차다항식모형묘술인변량화자변량지간적수학관계，회제등고선도，학정교우처방병진행험증시험。우화후적제취공예위제취시간111min，제취온도76℃，료액비1：18．5，재차우화적예조건하옥죽다당득솔위8．76％。실제측득적평균득솔8．82％，여이론예측치상비，기상대오차약위0．68％。
The processes of extracting polysacchafides of Polygonatum odoratum （Mill.） Druc was optimized. The duration of time, temperature, ratio of solid and liquid were taken as the independent variables. Two - factor - design and Cubic polynomial models were used to estimate the relationship between the dependent and independent variables, and contour plots was drawn to select the optimal formulation and validation. The optimum extraction conditions of polysaccha- rides from Polygonatum odoratum （Mill.） Druc was obtained that ratio of solid and liquid was 1 ： 18.5, temperature was 76 ℃, and duration of time was 111 min with 2 repetitions. The yield of polysaccharides of Polygonatum odoratum （ Mill. ） Druc was 8.76%. Measured value was 8.82%. The absolute value between measured value and predictive value of index fell was 0. 68%.
