Research Article
Optimization of Extraction and Enrichment of Steroidal Alkaloids from Bulbs of Cultivated Fritillaria cirrhosa
Table 4
Variance analysis of orthogonal experimental data.
| Source of variance | Sum of square | Degree of freedom | Mean square | value |
| Extraction time | 472.780 | 2 | 236.390 | 15.176** | Ethanol concentration | 1508.467 | 2 | 754.233 | 48.422*** | Temperature | 754.461 | 2 | 377.231 | 24.218*** | Solid-liquid ratio | 501.241 | 2 | 250.620 | 16.090** | Error | 140.187 | 9 | 15.576 | |
| Total | 141896.623 | 18 | | |
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critical value ; ; .
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