Table 1.
Extraction yields and chemical compositions of LLPs.
| LLP-H | LLP-M | LLP-V | LLP-RF | LLP-F | |
|---|---|---|---|---|---|
| Extraction yields (%) | 3.44 ± 0.55 b | 3.84 ± 0.59 ab | 3.70 ± 0.65 ab | 4.57 ± 0.64 a | 4.17 ± 0.99 ab |
| Total polysaccharides (%) | 72.05 ± 2.27 b | 68.49 ± 1.04 c | 76.35 ± 1.17 a | 72.01 ± 1.98 b | 66.43 ± 1.57 c |
| Total uronic acids (%) | 14.65 ± 0.66 b | 12.92 ± 0.23 c | 13.29 ± 1.05 bc | 13.84 ± 0.40 bc | 20.29 ± 1.74 a |
| Total polyphenolics (mg GAE/g) | 119.87 ± 2.76 a | 109.67 ± 1.22 b | 113.37 ± 2.37 b | 81.55 ± 2.87 c | 47.36 ± 2.70 d |
| Total proteins (%) | 8.76 ± 0.67 a | 8.17 ± 0.36 a | 8.60 ± 0.25 a | 6.76 ± 0.36 b | 4.44 ± 0.50 c |
| Degree of esterification (%) | 13.34 ± 0.20 c | 20.43 ± 0.57 ab | 16.79 ± 0.24 bc | 14.60 ± 0.57 c | 22.34 ± 0.20 a |
LLP-H, LLP-M, LLP-V, LLP-RF and LLP-F are polysaccharides from lotus leaves obtained by hot air drying, microwave drying, vacuum drying, radio frequency drying, and freeze drying, respectively; Values represent mean ± standard deviation, and superscripts a–d differ significantly (p < 0.05) among LLPs; Statistical significances were carried out by ANOVA plus post hoc Ducan’s test.