Table 4.
Mean Viscosities of Different Ratios of Pectin/Guar Gum Physical Mixtures in 0.1N HCl of pH 1.2
| Pectin:Guar Gum Ratio | *Viscosity (mpa.s) at Shear Rate 192 s−1 (32 rpm) ± SE |
*Viscosity (mpa.s) at Shear Rate 384 s−1 (64 rpm) ± SE |
*Viscosity (mpa.s) at Shear Rate 768 s−1 (128 rpm) ± SE |
*Flow Index (n) at Shear Rate 768 ± SE |
|---|---|---|---|---|
| 1: 1 | 5251.04 ± 73.96 | 536.198 ± 46.67 | 27.73 ± 2.01 | 0.204 ± 0.003 |
| 2: 1 | 6397.39 ± 133.33 | 776.58 ± 64.05 | 92.45 ± 8.49 | 0.355 ± 0.005 |
| 3: 1 | 6804.17 ± 147.92 | 1035.42 ± 73.96 | 101.69 ± 9.25 | 0.358 ± 0.0019 |
| 4: 1 | 6878.13 ± 128.1 | 1257.29 ± 73.96 | 147.92 ± 10.49 | 0.411 ± 0.004 |
| Pure pectin | 4881.25 ± 18.49 | 517.71 ± 6.75 | 18.49 ± 8.49 | 0.153 ± 0.008 |
| 1: 2 | 7469.79 ± 73.96 | 1442.19 ± 64.05 | 160.12 ± 6.82 | 0.326 ± 0.003 |
| 1: 3 | 8283.33 ± 147.92 | 1664.06 ± 64.05 | 184.89 ± 16.98 | 0.415 ± 0.006 |
| 1: 4 | 9318.75 ± 256.199 | 2126.3 ± 66.67 | 314.32 ± 18.49 | 0.476 ± 0.003 |
| Pure guar gum | 8653.13 ± 16.98 | 1885.94 ± 73.96 | 295.83 ± 14.05 | 0.479 ± 0.003 |
Notes: *Mean of three determinations ± S.E.