Physico-chemical properties of oils

Color reversed oil

Bleached

Deodorized

R.I at 25˚C

1.4715^a

1.4718^a

1.4717^a

Color

units

Re^d

4.2^c

1.8^b

0.5^a

Yellow

18^c

12^b

5^a

FFA (%) as Oleic acid

0.03^a

0.03^a

0.02^a

PV (meqO₂/kg oil)

0.6^b

0.35^a

0.23^a

p-Anisidine value (meq/kg oil)

3.28^b

2.05^ab

1.85^a

Totox value

1.259^b

0.759^a

0.485^a

Oxidative stability at 100˚C

5.54^b

5.84^b

6.25^a

IV (I₂/100 g oil)

127.95^a

127.85^a

127.64^a

Saponification value (mgKOH/g oil)

194.28^a

194.52^a

194.68^a

Soap content (ppm)

0

0

0

Wax (ppm)

26^b

24^b

20^a

Unsap (%)

0.44^a

0.42^a

0.40^a

K232 (nm.)

1.652^a

1.604^a

1.562^a

K270 (nm.)

0.238^a

0.224^a

0.219^a

Totalpolyphenols (ppm)

1.64^a

1.60^a

1.58^a