Characteristics of Oil from Seeds of 4 Mungbean [Vigna radiata (L.) Wilczek] Cultivars Grown in Pakistan
2008
Zia-Ul-Haq, Muhammad | Ahmad, Mansoor | Iqbal, Shahid
Mungbean is a widely consumed legume globally. This study was carried out for detailed characterization of oils from mungbean seeds from four indigenously cultivated varieties, as very little information is available on the oil composition of mungbean seeds and inter-varietal variation in oil composition. The oil content was relatively low (2.1-2.7%). The investigated physiochemical parameters included refractive indices (RI) at 40 °C (1.4673-1.4698), relative density (0.9580-0.9618), iodine value (IV) (111.4 -117.1), saponification value (SV) (173.1-181.7 mg KOH/g) and unsaponifiable matter (UM) (13.8-15.01%). Phospholipids and triglycerides were the dominant lipid fractions followed by monoglycerides. Linoleic acid and oleic acid were the dominant fatty acids (FA). Characterization was also made by TLC. Tocopherol analysis demonstrated highest content of γ-tocopherol among its isomers, while α-tocotrienol was present in highest amount in all studied cultivars, among its isomers. Results from most of the parameters revealed significant (P <= 0.05) differences among the cultivars. The findings of the study reveal mungbean [Vigna radiata (L.) wilczek], to be a potentially valuable legume crop with comparable nutritional quality oil among all the cultivars.
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