复方紫草油喷雾剂中紫草油提取工艺研究(2)
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3.2统计学方法
用正交试验的方差分析实验结果见表2。
4试验结果
4.1方差分析实验结果见表3。
表2紫草素含量的正交试验结果(mg/%)
水平因素A提取时间(min)B粉碎度C提取油量(倍)D提取温度紫草素含量(mg/100ml)
1
2
3
4
5
6
7
8
91
1
1
2
2
2
3
3
31
2
3
1
2
3
1
2
31
2
3
2
3
1
3
1
21
2
3
3
1
2
2
3
13.49
4.88
6.44
6.12
6.89
4.58
7.22
4.56
5.22
表3 单因素统计量表
1. A提取时间(min)
Dependent Variable: VAR00001 ：紫草素含量
时间MeanStd. Error95% Confidence Interval
Lower BoundUpper Bound
1.004.937.1064.4815.393
2.005.863.1065.4076.319
3.005.667.1065.2116.123
2. B粉碎度
Dependent Variable: VAR00001 ：紫草素含量
粉碎度MeanStd. Error95% Confidence Interval
Lower BoundUpper Bound
1.005.610...
2.005.443...
3.005.413...
3.C提取油量(倍)
Dependent Variable: VAR00001：紫草素含量
油量MeanStd. Error95% Confidence Interval
Lower BoundUpper Bound
1.004.210.1063.7544.666
2.005.407.1064.9515.863
3.006.850.1066.3947.306
4.D提取温度。
Dependent Variable: VAR00001：紫草素含量
温度MeanStd. Error95% Confidence Interval
Lower BoundUpper Bound
1.005.200.1064.7445.656
2.005.560.1065.1046.016
3.005.707.1065.2516.163
表4 方差分析表Tests of Between-Subjects Effects
Dependent Variable: VAR00001 ：紫草素含量
SourceType III Sum of SquaresdfMean SquareFSig.
Corrected Model12.390(a)81.549..
Intercept271.1511271.151..
A1.4302.715..
C10.48525.242..
D.4082.204..
B.0672.034..
Error.0000.
Total283.5419
Corrected Total12.3908
aR Squared = 1.000 (Adjusted R Squared = .)
从表四结果直观分析，各因素水平对结果影响的强弱顺序为C3A2D3B1.
即最佳工艺为加10倍油量，提取45min，温度控制在不超过150℃，选取1cm长的紫草段。
表5 方差分析表Tests of Between-Subjects Effects
Dependent Variable: VAR00001：紫草素含量
SourceType III Sum of SquaresdfMean SquareFSig.
Corrected Model12.323(a)62.05460.984.016
Intercept271.1511271.1518051.336.000
A1.4302.71521.235.045
D.4082.2046.055.142
C10.48525.242155.664.006
Error.0672.034
Total283.5419
Corrected Total12.3908
aR Squared = .995 (Adjusted R Squared = .978)
从实验结果来看，影响最大的是C麻油的用量，其次是提取时间A，两个因素的误差P小于0.05，粉碎度B和提取温度D两项无显著差异即P大于0 ......
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