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 0.31op ±0.03 0.13w ±0.04 0.15vw ±0.03 0.16uvw ±0.03 0.16uvw ±0.01 0.18uvw ±0.02 0.20uvw ±0.03
5 0.40hij ±0.04 0.25 rst ±0.03 0.21 uvw ±0.07 0.19 uvw ±0.03 0.19uvw ±0.04 0.20 uvw ±0.06 0.22t uv ±0.02
10 0.54 de ±0.03 0.30 opq ±0.03 0.26 rst ±0.04 0.24 stu ±0.01 0.23 tuv ±0.06 0.24 stu ±0.03 0.23 tuv ±0.05
15 0.62 bc ±0.06 0.35 lmn ±0.05 0.34 mno ±0.01 0.29 pqr ±0.03 0.27 qrs ±0.04 0.29 pqr ±0.01 0.27qrs ±0.02
20 0.69 ab ±0.02 0.42 hij ±0.07 0.38 jkl ±0.06 0.37 klm ±0.04 0.36 klm ±0.03 0.34 mno ±0.08 0.31 opq ±0.04
25 0.70 a ±0.03 0.53 def ±0.03 0.45 ghi ±0.03 0.42 hij ±0.03 0.40 hij ±0.03 0.39 ijk ±0.03 0.37 jkl ±0.03
30 0.73 a ±0.03 0.69 ab ±0.03 0.58cd ±0.03 0.56cde ±0.03 0.52 def ±0.03 0.49 efg ±0.03 0.48 fgh ±0.03
LSD at 0.05 = 0.07246
Table1: Changes in acid values (mg KOH/g Oil) of sunflower blended with different portions of Tiger nut oil during deep fat frying at (180°C ± 5°C).