Table 3.
Oxidative and antioxidant properties of margarine during cold storage.
| No of Treatments | Days |
|||||
|---|---|---|---|---|---|---|
| 0 | 30 | 60 | 90 | |||
| Oxidative properties | PV* (meq/kg) | T1 | 0.929 aC ± 0.051 | 1.014bC ± 0.119 | 1.785 bB ± 0.169 | 3.679 bA ± 0.186 |
| T2 | 0.929 aC ± 0.079 | 1.121bB ± 0.138 | 1.244 cB ± 0.081 | 2.023 cA ± 0.066 | ||
| T3 | 0.927 aD ± 0.108 | 1.097bC ± 0.115 | 1.269 cB ± 0.055 | 1.803dA ± 0.090 | ||
| T4 | 0.928 aD ± 0.117 | 2.359aC ± 0.144 | 3.768 aB ± 0.152 | 7.036 aA ± 0.123 | ||
| P-AV* (mMol Aldehyde/kg) | T1 | 1.341 aD ± 0.117 | 2.260cC ± 0.004 | 4.317bB ± 0.388 | 8.690 bA ± 0.426 | |
| T2 | 1.330 aD ± 0.078 | 2.465 bC ± 0.267 | 3.0767cB ± 0.199 | 4.880 cA ± 0.163 | ||
| T3 | 1.332aD ± 0.138 | 2.215 dC ± 0.037 | 2.856 dB ± 0.118 | 4.094 dA ± 0.197 | ||
| T4 | 1.341aD ± 0.136 | 4.133 aC ± 0.218 | 6.265 aB ± 0.225 | 11.143 aA ± 0.177 | ||
| AV* (mg NaOH/g oleic acid) | T1 | 0.475 aD ± 0.048 | 0.583 cC ± 0.010 | 1.675 bB ± 0.115 | 2.829 bA ± 0.131 | |
| T2 | 0.494 aD ± 0.031 | 0.634 bC ± 0.011 | 1.283 cB ± 0.075 | 1.808 cA ± 0.068 | ||
| T3 | 0.473 aD ± 0.033 | 0.551 cdC ± 0.037 | 1.128 dB ± 0.023 | 1.334 dA ± 0058 | ||
| T4 | 0.493 aD ± 0.014 | 0.899aC ± 0.083 | 2.766 aB ± 0.083 | 4.064 aA ± 0.053 | ||
| Antioxidant activity | DPPH* (%) | T1 | 78.171 aA ± 0.154 | 69.026 cB ± 0.442 | 58.054 cC ± 0.614 | 51.056 cD ± 0.657 |
| T2 | 78.177 aB ± 0.112 | 66.349 bB ± 0.023 | 64.018 bC ± 0.318 | 59.476 bD ± 0.316 | ||
| T3 | 79.881 aA ± 0.718 | 71.862 aB ± 0.050 | 78.826 aC ± 0.173 | 64.497 aD ± 0.438 | ||
| T4 | 76.233 bA ± 0.181 | 58.002 dB ± 0.378 | 48.606 dC ± 0.362 | 40.786 dD ± 0.264 | ||
Mean ± SD, n = 3. Different small and large superscripts indicate statistically significant differences between the columns and rows, respectively (p ≤ 0.05). peroxide value (PV), p-anisidine value (p-AV), Acidity Value (AV) T1: Margarine containing 100 ppm optimized free GCSE8, T2: Margarine containing 100 ppm optimized bio-hydrogels encapsulating GCSE8, T3: Margarine containing 75 ppm synthetic antioxidant (TBHQ), and T4: Margarine without any additive (Control sample).