دراسة محتوى الكليسيريدات و الأحماض الدهنية للزيوت المستخلصة من بعض أصناف الرز المحلية

Abstract EN

The separation of neutral lipids appeared high percentage of triglyceride.

The raw rice and rice bran oil of Anbar variety contained (94.4%) and (93.2%) of triglyceride respectively, while polished rice oil of Hwezawi variety contained (88.7%).

However, the diglyceride frequented (2.1% for Anbar raw rice oil and 8% for Ghriba rice bran oil.

The monoglyceride showed a high percentage for Anbar (9.3%) and (9.1%) for rice bran oil of Hwezawi and 8.8% for raw rice oil of Hwezawi too.The separation of phospholipids appeared that the rice oil containing phosphotidyl inositol PI, phosphotidyl Choline PC, phosphotidyl Serine PS, and phosphotidyl Ethanolamine PE.

PC was the higher percentage than other types of phospholipids.

Since the PC reports 53.2% in rice bran oil of Ghriba, than PE in polished rice oil of Anber (32.4%), PS in raw rice of Ghriba (31%), and the lower phospholipids was PI, which reports 9.8% as a higher percentage in polished rice oil of Anber.

Determination of fatty acids content of oil extracted from local rice varieties using gas chromatography showed that the raw rice oil of Anber variety contain a lowest value of myrestic acid (0.9%) comparing with other varieties.

While Hwezawi variety contained a higher value of palmitic acid (37.8%).

The unsaturated fatty acids content of raw rice oil which exracted from Ghriba, Anber and Hwezawi were 61.1, 58.5 and 51.5% respectively.

The rice bran oil of Hwezawi contained less amount of myrestic acid (0.8%), while Ghriba contained a high percentage of palmitic acid (30.9%).

The rice bran oil of Hwezawi variety contained a high percentage of nsaturated fatty acids (72.8%) comparing with Anber (67.8%), and Ghriba (54.3%).