Table 3

Fatty acid profile of the oils from white, red, and black rice brans from two hours of extraction

Classification Fatty Acid Relative area (%)

White RB Red RB Black RB
Saturated fatty acid Butyric acid (C4:0) <0.1 <0.1 <0.1
Hexanoic acid (C6:0) <0.1 <0.1 <0.1
Octanoic acid (C8:0) <0.1 <0.1 <0.1
Decanoic acid (C10:0) <0.1 <0.1 <0.1
Lauric acid (C12:0) <0.1 <0.1 <0.1
Myristic acid (C14:0) <0.1 <0.1 <0.1
Palmitic acid (C16:0) 37.87 ± 0.06b 37.10 ± 0.01c 39.66 ± 0.01a
Stearic acid (C18:0) <0.1 <0.1 <0.1
Arachidic acid (C20:0) <0.1 <0.1 <0.1
Docosanoic acid (C22:0) <0.1 <0.1 <0.1
Lignoceric acid (C24:0) <0.1 <0.1 <0.1
Total saturated fatty acids 37.87 ± 0.06b 37.10 ± 0.01c 39.66 ± 0.01a
Unsaturated fatty acid Myristoleic acid (C14:1ω-5) <0.1 <0.1 <0.1
Palmitoleic acid (C16:1ω-9) 1.98 ± 0.01 <0.1 <0.1
Cis-9-oleic acid (C18:1ω-9) 19.46 ± 0.04b 20.02 ± 0.07a 20.05 ± 0.01a
Linoleic acid (C18:2ω-6) 38.81 ± 0.00b 41.06 ± 0.01a 35.32 ± 0.01c
α-Linolenic acid 1.90 ± 0.09b 1.82 ± 0.08b 2.53 ± 0.03a
cis-11-eicosenoate <0.1 <0.1 <0.1
γ-Linolenic acid <0.1 <0.1 <0.1
cis-11,14-eicosadienoate (C20:2ω-6) <0.1 <0.1 <0.1
cis-8,11,14-eicosatrienoic (C20:3ω-6) <0.1 <0.1 <0.1
cis-11,14,17-eicosatrienoate <0.1 <0.1 <0.1
Methyl erucate <0.1 <0.1 <0.1
cis-5,8,11,14-eicosatetraenoic (C20:3ω-6) <0.1 <0.1 <0.1
cis-13,16-docosadienoic (C22:2ω-6) <0.1 <0.1 <0.1
cis-5,8,11,14,17-eicosapentaenoate (C20:5ω-3) <0.1 <0.1 <0.1
Nervonic acid (C24:1ω-9) <0.1 <0.1 <0.1
cis-4,7,10,13,16,19-docosahexanoate (C22:6ω-3) <0.1 <0.1 <0.1
Total unsaturated fatty acids 62.15 ± 0.15b 62.90 ± 0.16a 57.90 ± 0.05c

Data are expressed as the mean ± SD of two replicates. Means with different letters in rows for each measurement are significantly different at p < 0.05. (RB = Rice Bran).

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