Table 1 Orthogonal experiment of ethanol ultrasonic extraction and chlorogenic acid content.
From: Optimization of ultrasonic pretreatment and analysis of chlorogenic acid in potato leaves
Extraction temperature/℃ | Extraction time/min | Material liquid ratio/g∙mL−1 | Ethanol concentration/% | Chlorogenic acid content/mg∙g−1 | |
|---|---|---|---|---|---|
1 | 50 | 30 | 1: 20 | 40 | 0.1500 |
2 | 60 | 30 | 1: 30 | 50 | 0.1000 |
3 | 70 | 30 | 1: 40 | 60 | 0.1750 |
4 | 50 | 60 | 1: 40 | 60 | 0.1750 |
5 | 60 | 60 | 1: 20 | 40 | 3.1750 |
6 | 70 | 60 | 1: 30 | 50 | 0.0500 |
7 | 50 | 90 | 1: 30 | 50 | 0.0750 |
8 | 60 | 90 | 1: 40 | 60 | 0.4250 |
9 | 70 | 90 | 1: 20 | 40 | 0.6500 |
