Table 3. Oxidative markers of walnut kernels coated with gum arabic enriched with γ-aminobutyric acid (GABA) during storage at 20 °C for 18 weeks.
| Oxidative stress markers | ||||||||
|---|---|---|---|---|---|---|---|---|
| w(gum arabic)/% | c(GABA)/mM | t/week | LOX activity/(U/mg) | b(H2O2)/(μmol/g) | ||||
| 0 | (10.3±0.3) | (14.3±0.3) | ||||||
| 0 | 0 | 6 | (24±1.4)defg | (20.2±0.4)cde | ||||
| 12 | (36.1±1.4)bc | (24.7±0.4)b | ||||||
| 18 | (50.6±1.3)a | (31.4±0.5)a | ||||||
| 0 | 1 | 6 | (20.7±0.5)fgh | (19.9±0.5)cde | ||||
| 12 | (31.9±1.0)bcd | (22.9±1.1)bcd | ||||||
| 18 | (33.1±0.4)bc | (30.1±0.4)a | ||||||
| 10 | 0 | 6 | (17.0±0.9)gh | (17.4±0.4)ef | ||||
| 12 | (29.7±0.7)bcde | (25.5±1.5)b | ||||||
| 18 | (37.5±1.1)b | (31.5±1.2)a | ||||||
| 5 | 0.1 | 6 | (12.9±1.2)h | (14.5±1.2)f | ||||
| 12 | (22.8±1.1)efg | (19.2±0.9)def | ||||||
| 18 | (28.6±1.3)cdef | (23.3±1.2)bc | ||||||
| Significant | df | |||||||
| Time | 2 | ** | ** | |||||
| Treatment | 3 | ** | ** | |||||
| T×T | 6 | * | * | |||||
| CV | - | 10.84 | 6.21 | |||||
Data are presented as mean value±standard error of three replications. Different letters indicate significant differences at p=0.05. * and **Significance at p=0.05 and 0.01, respectively. LOX=lypoxygenase