Table 7 The independent factors and combination of independent factors for optimization the microwave-assisted extraction of astaxanthin with different solvents from F. merguiensis shrimp wastes
From: Green astaxanthin extraction using microwave and ultrasound pretreatments
Run | Independent variables | Total carotenoid content (µg/g DW) | Astaxanthin concentration (mg/mL) | Astaxanthin recovery yield (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
X1 | X2 | X3 | Organic solvent | Vegetable oil | Ionic microemulsion | Organic solvent | Vegetable oil | Ionic microemulsion | Organic solvent | Vegetable oil | Ionic microemulsion | |
1 | 20 | 300 | 5 | 33.517 | 25.158 | 46.872 | 20.968 | 23.221 | 44.951 | 62 | 91.66 | 95.33 |
2 | 20 | 200 | 57.5 | 41.777 | 18.936 | 61.269 | 27.841 | 16.761 | 59.374 | 66.33 | 87.66 | 96.66 |
3 | 12.5 | 200 | 57.5 | 43.596 | 31.231 | 74.507 | 31.158 | 27.904 | 71.983 | 70.66 | 85.66 | 95.66 |
4 | 12.5 | 200 | 57.5 | 59.238 | 26.65 | 72.983 | 46.015 | 23.476 | 69.666 | 79 | 86 | 95 |
5 | 20 | 100 | 110 | 40.834 | 17.602 | 49.39 | 39.808 | 16.285 | 47.713 | 97 | 92 | 96 |
6 | 12.5 | 200 | 110 | 66.739 | 45.555 | 80.412 | 51.494 | 41.503 | 74.031 | 78 | 90.33 | 92 |
7 | 12.5 | 200 | 5 | 56.229 | 28.587 | 67.332 | 39.618 | 26.348 | 64.698 | 69.66 | 92 | 95.33 |
8 | 5 | 300 | 5 | 52.523 | 46.126 | 59.206 | 51.945 | 41.968 | 57.079 | 98.33 | 90.33 | 95.66 |
9 | 12.5 | 200 | 57.5 | 66.205 | 43.04 | 78.11 | 46.171 | 38.396 | 74.317 | 69.33 | 88.66 | 94.66 |
10 | 5 | 200 | 57.5 | 25.634 | 42.913 | 67.936 | 24.523 | 39.698 | 65.507 | 94.66 | 92 | 96 |
11 | 5 | 100 | 5 | 62.327 | 50.698 | 82.428 | 45.516 | 39.825 | 79.017 | 75.33 | 79 | 95.33 |
12 | 12.5 | 100 | 57.5 | 57.501 | 36.841 | 71.999 | 38.904 | 32.237 | 69.38 | 67.33 | 86.66 | 96 |
13 | 12.5 | 200 | 57.5 | 69.253 | 37.04 | 87.396 | 62.802 | 33.634 | 71.714 | 91 | 90.33 | 82.66 |
14 | 20 | 300 | 110 | 49.43 | 18.555 | 64.342 | 43.618 | 16.476 | 62.729 | 90 | 87.33 | 96.66 |
15 | 12.5 | 200 | 57.5 | 47.812 | 34.671 | 68.812 | 40.094 | 30.936 | 65.999 | 86.33 | 88.66 | 95.33 |
16 | 12.5 | 300 | 57.5 | 54.57 | 30.532 | 75.206 | 52.618 | 27.809 | 72.697 | 96 | 90.33 | 96.33 |
17 | 5 | 300 | 110 | 35.088 | 44.252 | 66.65 | 33.618 | 40.796 | 61.681 | 95.33 | 91.66 | 92 |
18 | 5 | 100 | 110 | 41.92 | 45.872 | 87.967 | 40.364 | 41.961 | 84.348 | 96.33 | 91 | 95.33 |
19 | 12.5 | 200 | 57.5 | 48.411 | 42.666 | 73.378 | 39.999 | 29.279 | 59.095 | 83.33 | 73 | 76.66 |
20 | 20 | 100 | 5 | 38.079 | 20.913 | 51.872 | 24.65 | 19.015 | 49.999 | 64.33 | 90.66 | 96 |
