00000ctm a22000007a 4500 UP-1685523046125413653 Buklod 20230503092606.0 m |o d | ta 071031s xx d r |||| u| (iLib)UPMNL-00000054987 ​​​​UPM PHARM eng LG 995 1975 P4 J39 Javier, Nora U. Remo 1945- A chemical study of the essential oil of Pinus kesiya Royle ex Gordon (Fam. Pinaceae) Nora U. Remo-Javier. 52 leaves Available to the general public. Thesis (Master of Science in Pharmacy)--University of the Philippines, 1975. A colorless essential oil which turned yellowish after keeping for some time was obtained from the fresh leaves of Pinus kesiya Royle ex Gordon formerly known as Pinus insularis Endl. (Fam. Pinaneae). Oil yield was 0.48% and moisture content was 54.67%. The physicochemical properties of the oil are the following: specific gravity (d25/25)= 0.8913; refractive index (n20/D) = 1.4785; oprical rotation (o26/D) = 23.960; acidic value = 4.52, ester value = 7.43; ester value after acetylation = 19.39; saponification value = 12.55. TLC and gas chromatography of the oil indicated the presence of o-pinene, d-limonene and bornyl acetate. IR analysis and GC of the oil indicated the predominance of o-pinene. Essences and essential oils. Pine oil. Pinaceae--Analysis. Pinaceae. Pinus kesiya. FI UP UPMNL PHARM LG 995 1975 P4 J39 Thesis