Philippine Resins, Gums, Seed Oils, and Essential Oils

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Bureau of printing, 1920 - Botany - 230 pages
 

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Page 104 - M Hemsl. (Fig. 38). PETROLEUM NUT. Local names: Abkol, abkel, langis (Benguet) ; dingo (Mountain Province) ; sagdga (Abra). PETROLEUM-NUT OIL The fruits of this species are known in the Philippines as petroleum nuts because of the fancied resemblance of the odor of the oil to that of petroleum and because even the green fresh fruits will burn brilliantly when a match is applied to them. The chemical properties of the oil have been investigated by Bacon.* He found that the oil from the petroleum nut...
Page 76 - ... of work or time. That the method was extremely wasteful did not concern them, nor were they bothered over the prospect of a bankrupt future. The method which is still in vogue from the westernmost part of Sumatra to the easternmost point of Mindanao is, with various minor modifications, practically as follows: The tree is first cut down and the larger branches at once lopped off, the collectors say, to prevent the gutta-percha milk from flowing back into the small branches and leaves.
Page 46 - I found at different times in the oil obtained from commercial elemi is readily explained. It is plain what the composition of elemi oil is when considered as an aggregate product; it should be remembered that to the laevo-limonene which accompanies phellandrene should be added an equal amount of dextro-limonene and the whole considered as dipentene. Granted that we have a representative sample of resin, the composition of the oil will also be influenced by the following factors : (1) The age of...
Page 76 - To open these so as to permit the maximum amount of the milk to escape, the natives cut rings in the bark about two feet apart along the entire length of the trunk. The milk as it flows out is collected in gourds, cocoanut shells, large leaves, or in some districts in the choppedup bark...
Page 162 - The kernels yield a valuable oil, similar to almond oil in flavour, odour, and specific gravity, but a little more deeply coloured; it deposits stearine on keeping. It possesses the advantage of not becoming rancid so readily as true almond oil, and if it could be produced cheaply would doubtless compete successfully with it. As the tree is abundant everywhere and the fruit could be doubtless obtained very cheaply, "Indian almond oil" appears to merit the attention of dealers. It was first brought...
Page 208 - Cebú for cleansing the hair, or a^e mixed with Gogo (pounded stems of Entada phaseoloides) which serves as a shampoo. The crushed fruit is also added to coconut oil, to give it fragrance when applied to the hair. The oil obtained by steam-distilling the crushed peels had an orange-like odor and the following constants : Specific gravity 28.5° = 0.8670 Refractive index 25° = 1.4718 Optical rotation A— '. = -1.150 (100 mm. tube) * Schimmel, Semi-annual report (1901).
Page 109 - The oil which we have examined (called Houge oil in Mysore), and expressed purposely from fresh seeds, was thick, of a light orangebrown colour, and bitter taste. The sp. gr. at 18°C was 0.9458.
Page 109 - With nitric acid it formed an orange emulsion. With the elaidin test it remained liquid for several hours, and was of the colour and consistence of honey after two days. The fresh oil deposits solid white fats if kept at the temperature of 16° for a few weeks, and the clear oil then has the specific gravity of 0.935. The bitter principle of the oil appears to reside in a resin, and not in an alkaloid as is the case with Margosa oil.
Page 215 - The WHOLE PLANT has an aromatic odour, which is improved by drying. Its taste is aromatic and somewhat cooling and saline." (Pharmacog. Ind.). The SREDS, which are much used medicinally in some parts of India, are small, black, oblong (one-sixteenth inch long*, slightly arched on one side and flattened on the other, blunt pointed. They have no odour, but an oily, slightly pungent taste. When placed in water they become coated with a semi-transparent mucilage. Steeped in water, they form a mucilaginous...
Page 176 - Singh § distilled seven samples of vetiver roots and found that the yield of oil obtained varied from 0.45 to 1.14 per cent. The resin contained in the oil was eliminated by redistillation and the refined oil then gave a negative optical rotation (-30.65°). An extensive investigation of vetiver oil and a review of the literature on this subject has been made by Semmler, Risse, and Schroter.ll The oil used by these investigators was prepared by Schimmel. They obtained from vetiver oil various substances...

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