Extraction and Characterization of Montmorency Sour Cherry (Prunus cerasus L.) Pit Oil

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Journal of the American Oil Chemists' Society, ISSN: 0003-021X, Vol: 93, Issue: 7, Page: 995-1005

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Nathan M. Korlesky, Lucas J. Stolp, Dharma R. Kodali, Robert Goldschmidt, William C. Byrdwell
Springer Nature
Chemical Engineering, Chemistry
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Montmorency sour cherry (Prunus cerasus L.) pit oil (CPO) was extracted and characterized by various methods including: GC, LC–MS, NMR, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD). The oil gave an acid value of 1.45 mg KOH/g, saponification value of 193 mg KOH/g and unsaponifiable matter content of 0.72 %. The oil contained oleic (O) and linoleic (l) acids as the major components with small concentrations of α-eleostearic acid (El, 9Z,11E,13E-octadecatrienoic acid) and saturated fatty acid palmitic (P) acid. The CPO contained six major triacyglycerols (TAG), OOO (16.83 %), OLO (16.64 %), LLO (13.20 %), OLP (7.25 %), OOP (6.49 %) and LElL (6.16 %) plus a number of other minor TAG. The TAG containing at least one saturated fatty acid constitute 33 % of the total. The polymorphic behavior of CPO as studied by DSC and XRD confirmed the presence of α, β′ and β crystal forms. The oxidative induction time of CPO was 30.3 min at 130 °C and the thermal decomposition temperature was 352 °C.

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