Characterization of High-Value Bioactives in Some Selected Varieties of Pakistani Rice (Oryza sativa L.)

摘要: The present study reports the composition and variation of fatty acids, sterols, tocopherols γ-oryzanol among selected varieties namely Basmati Super, 515, 198, 385, 2000, 370, Pak, KSK-139, KS-282 Irri-6 Pakistani rice (Oryza sativa L). Oil content extracted with n-hexane from different brown seed (unpolished rice) ranged 1.92% to 2.72%. Total acid contents tested varied between 18240 25840 mg/kg seed. mainly contained oleic (6841-10952 mg/kg) linoleic (5453-7874 palmitic (3613-5489 mg/kg). amounts total phytosterols (GC GC-MS analysis), main contribution β-sitosterol (445-656 mg/kg), campesterol (116-242 Δ(5)-avenasterol (89-178 stigmasterol (75-180 were established be 739.4 1330.4 α-, γ- δ-tocopherols as analyzed by HPLC 39.0-76.1, 21.6-28.1 6.5-16.5 seed, respectively. components (HPLC data), identified cycloartenyl ferulate, 24-methylene cycloartanyl campesteryl ferulate β-sitosteryl in range 65.5-103.6, 140.2-183.1, 29.8-45.5 8.6-10.4 Overall, concentration these bioactives was higher cultivars showing their functional food superiority. In conclusion, rice, especially cultivars, can provide best ingredients for foods.