Physico‐Chemical Characteristics of Citrus Seeds and Seed Oils from Pakistan

• DOI: 10.1007/s11746-008-1204-3
• Publication Date: 2008-02-08T11:00:36Z
• Authors: Farooq Anwar; Rehana Naseer; M. I. Bhanger; Samia Ashraf; Farah Naz Talpur; Felix Adekunle Al...
• Keywords: Unsaponifiable; Citrus paradisi; Saponification value; Peroxide value

Abstract The physico‐chemical characteristics of the seeds and seed oils four citrus species, Mitha ( Citrus limetta ), Grapefruit paradisi Mussami sinensis Kinnow reticulata ) were investigated. hexane‐extracted oil content ranged from 27.0 to 36.5%. protein, fiber ash contents found be 3.9–9.6%, 5.0–8.5%, 4.6–5.6%, respectively. extracted exhibited an iodine value 99.9–110.0; refractive index (40 °C), 1.4639–1.4670; density (24 0.920–0.941 mg/mL; saponification value, 180.9–198.9; unsaponifiable matter, 0.3–0.5%; acid (mg KOH/g oil), 0.5–2.2 color (1‐in. cell) 1.4–3.0R + 15.0–30.0Y. revealed a good oxidative stability as indicated by determinations specific extinctions at 232 270 nm (2.3–4.4 0.6–0.9, respectively), p ‐anisidine (2.2–3.2) peroxide (1.6–2.4 mequiv/kg oil). mainly consisted linoleic (36.1–39.8%). Other prominent fatty acids palmitic (25.8–32.2%), oleic (21.9–24.1%), linolenic (3.4–4.4%), stearic (2.8–4.4%). tocopherols (α, γ, δ) in 26.4–557.8, 27.7–84.1, 9.1–20.0 mg/kg, results present study demonstrated that species investigated are potential source valuable which might utilized for edible other industrial applications.