Frying period (hr) Tiger nut oil (TNO) Sunflower oil (SO) TNO + SO(v/v) 10: 90     20:80      30: 70        40: 60         50: 50
0 105.80wx ±0.26 123.00a ±0.29 120.70b ±0.34 119.10cd ±0.09 116.50fg ±1.12 113.5kl ±0.31 112.00mn ±0.63
5 105.00xy ±0.10 121.50b ±1.05 119.45c ±0.18 118.00e ±0.51 115.10hi ±0.38 112.10mn ±0.38 111.50n ±0.52
10 104.73yz ±0.08 119.55c ±0.21 117.30ef ±0.05 116.85f ±1.10 113.65kl ±0.43 111.00no ±0.25 109.44pqr ±0.12
15 103.44z ±1.21 118.10de ±0.31 115.60gh ±0.23 115.40jkl ±0.08 112.00mn ±1.36 110.21op ±0.03 108.00stu ±0.92
20 102.65z ±0.05 117.22ef ±0.35 114.22ijk ±1.19 113.95jkl ±0.97 110.12opq ±0.90 109.00qs ±0.05 107.15uv ±1.14
25 101.23/ ±0.38 114.85hij ±0.90 113.10klm ±0.07 113.00lm ±0.75 109.25pqr ±0.75 107.90tu ±1.11 106.00vwx ±1.12
30 99.90// ±0.13 111.10no ±0.38 112.75lm ±0.43 112.10mn ±1.10 108.33rst ±0.21 106.30vw ±0.20 105.26wxy ±0.30
LSD at 0.05 =1.039
Data are expressed as mean ± SD. Values given represent means of three determinations Values followed by the same letter are not significantly different (p<0.05)
Table 4: Changes in iodine value (g I2/100 g oil) of sunflower blended with different portions of Tiger nut oil during deep fat frying at (180°C ± 5°C).