Research Article
Antioxidant Activities and Repair Effects on Oxidatively Damaged HK-2 Cells of Tea Polysaccharides with Different Molecular Weights
Table 1
Degradation conditions and physicochemical properties of TPSs with different Mw.
| Polysaccharide abbreviation | H2O2 concentration C(H2O2)/% | Intrinsic viscosity [η]/mL/g | Mean molecular weights Mr/kDa | –COOH content/% | Solubility (25°C) g/100 g |
| TPS0 | 0 | 3.952 ± 0.130 | 10.88 ± 0.73 | 11.2 | 10.0 | TPS1 | 4 | 3.434 ± 0.086 | 8.16 ± 0.42 | 12.3 | 12.5 | TPS2 | 8 | 2.653 ± 0.072 | 4.82 ± 0.27 | 12.7 | 25.0 | TPS3 | 14 | 1.842 ± 0.188 | 2.31 ± 0.48 | 11.0 | 33.3 |
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