Chemical Composition and Physical Properties of High Oleic Safflower Oils (Carthamus tinctorius, Var. CW88-OL and CW99-OL)

SALABERRIA, FLORENCIA; CONSTENLA, DIANA; CARELLI, AMALIA; CARRÍN, MARÍA ELENA

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY (JAOCS)

SPRINGER

Lugar: Berlin; Año: 2016

0003-021X

Chemical composition and physical properties of CW88-OL and CW99-OL cultivars of high oleic safflower seeds and their hexane-extracted oils were determined. Dry-based seed composition of CW88-OL and CW99-OL was: moisture=4.29 and 4.23 %, oil=42.29 and 46.44 %, Crude protein= 20.94 and 16.41 %, neutral detergent fiber= 28.11 and 28.49 %, ash= 1.55 and 2.01 %, phosphorus content= 2033 and 3995 mg/kg, respectively. Major fatty acids in oils were ~78% oleic (O), ~13% linoleic (L), ~5% palmitic (P) and ~2% stearic (St) acids, for both cultivars. Main triacylglycerols were OOO (~50%), OOL (~20%), SOL+OPO (~10%), and LLP (~5%). The oil composition of CW88-OL and CW99-OL in main minor components was: α-tocopherol= 582 and 551 mg/kg, total sterols= 3996 and 3362 mg/kg, phospholipids= 22 and 21 mg/kg and wax content= 70 and 74 mg/kg. For both cultivars, density and viscosity of the oils between 25 and 55 ºC varied from 903.4 to 912.6 kg/m3 and 63 to 23 mPa.s showing linear and exponential behaviors, respectively. Refractive index was 1.4694. CIELab color parameters were: 89.69 and 89.53 (L*), -3.72 and -3.07 (a*), and 47.28 and 47.78 (b*) (CW88-OL and CW99-OL, respectively).Thus, the high oil content of the seeds and nutritional quality of the oil accompanied by low levels of waxes and phospholipids makes the cultivars studied promising for producers and consumers.