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A peer-reviewed article of this preprint also exists.
Submitted:
31 January 2024
Posted:
01 February 2024
You are already at the latest version
Phenolic Standard | Wavelength = 280 nm | ||||
Regression equation | R2 | Concentration range (µg) | LOD (µg) | LOQ (µg) | |
Protocatechuic acid | y = 1721.4x + 61.2 | 0.9984 | 0.072-8.582 | 0.022 | 0.067 |
p-Coumaric acid | y = 5839.2x +187.2 | 0.9990 | 0.034-13.0 | 0.010 | 0.030 |
Quercetin-3-O-glucoside | y = 1218.3x - 8.6 | 0.9998 | 0.020-2.61 | 0.006 | 0.018 |
Quercetin-4'-O-glucoside | y = 1310.3x + 14.9 | 0.9998 | 0.050-5.94 | 0.015 | 0.045 |
Myricetin | y = 1535.4x - 70.9 | 0.9994 | 0.268-2.679 | 0.030 | 0.090 |
Quercetin | y = 1578.5x + 165.1 | 0.9990 | 0.127-15.81 | 0.030 | 0.090 |
Kaempferol | y = 2036.4x - 3.4 | 0.9999 | 0.073-2.273 | 0.020 | 0.060 |
Isorhamnetin | y = 3877x + 106.0 | 0.9980 | 0.063-3.136 | 0.006 | 0.018 |
Phenolic Standard | Wavelength = 330 nm | ||||
Regression equation | R2 | Concentration range (µg) | LOD (µg) | LOQ (µg) | |
Protocatechuic acid | nd | nd | nd | nd | nd |
p-Coumaric acid | y = 4923.4x + 362.1 | 0.9983 | 0.037-13 | 0.010 | 0.030 |
Quercetin-3-O-glucoside | y = 1992x - 16.6 | 0.9999 | 0.02-2.61 | 0.006 | 0.018 |
Quercetin-4'-O-glucoside | y = 1793.7x + 29.5 | 0.9998 | 0.0397-5.94 | 0.010 | 0.030 |
Myricetin | y = 2099.4x - 131.3 | 0.9994 | 0.268-2.679 | 0.030 | 0.090 |
Quercetin | y = 2012.4x + 322.9 | 0.9969 | 0.067-15.81 | 0.020 | 0.060 |
Kaempferol | y = 2792.7x - 6.3 | 0.9999 | 0.033-2.273 | 0.010 | 0.030 |
Isorhamnetin | y = 4892.2x + 233.9 | 0.9956 | 0.063-6.272 | 0.006 | 0.018 |
Phenolic Standard | Wavelength = 370 nm | ||||
Regression equation | R2 | Concentration range (µg) | LOD (µg) | LOQ (µg) | |
Protocatechuic acid | nd | nd | nd | nd | nd |
p-Coumaric acid | nd | nd | nd | nd | nd |
Quercetin-3-O-glucoside | y = 2199.6x -7.4 | 0.9965 | 0.099-2.61 | 0.003 | 0.010 |
Quercetin-4'-O-glucoside | y = 2778.2x + 132.3 | 0.9994 | 0.030-5.94 | 0.006 | 0.018 |
Myricetin | y = 4440.6x - 112.9 | 0.9999 | 0.268-2.679 | 0.010 | 0.030 |
Quercetin | y = 3024.4x + 1677.8 | 0.9900 | 0.022-15.81 | 0.006 | 0.018 |
Kaempferol | y = 4897.9x + 24.1 | 0.9999 | 0.023-2.273 | 0.005 | 0.015 |
Isorhamnetin | y = 9324.1x + 462.2 | 0.9943 | 0.063-1.568 | 0.002 | 0.006 |
Phenolic compounds: | OSW-SWE | |||||
Rt (min) | (mg/gdry-extract)* | |||||
1 | Protocatechuic acid | 9.7 | 20.3i | ±i | 2.5 | |
2 | p-Coumaric acid | 39.9 | 0.10i | ±i | 0.05 | |
3 | Quercetin-3-O-glucoside | 55.5 | 0.10i | ±i | 0.05 | |
4 | Quercetin-4´-O-glucoside | 62.6 | 7.5i | ±i | 0.2 | |
5 | Myricetin | 63.8 | 0.7i | ±i | 0.1 | |
6 | Quercetin | 67.5 | 3.2i | ±i | 0.6 | |
7 | Kaempferol | 70.1 | 0.20i | ±i | 0.05 | |
8 | Isorhamnetin | 70.6 | 0.20i | ±i | 0.05 | |
∑ phenolic compounds (mg/gdry-extract) | 32.3 | ±i | 2.6 | |||
TFC (mgQEq/gdry-extract) (colorimetric assay) | 26.0 | ± | 3.0 |
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