الفهرس | Only 14 pages are availabe for public view |
Abstract Part 1 : Harvest month: A) Yield of concrete Jasmine oil: The percentage of concrete Jasmine using hexane as a solvent fluctuated between 0.29 and 0.32%. The maximum yield of concrete obtained in August (0.32%) and September (0.32%) while for June the value was- 0,29%. B) Percentage of absolute Jasmine oil: The isolation of absolute Jasmine oil from hexane by extraction with 95% alcohol indicated the percentage of absolute to be in the range of 45% - 55.6%; the concretes prepared in June, July, ~iUgust, September and October indi~ cated the values 59.0%, 55.1% , 55.6% and 45% for the absolute oil respe.tively. - C) Physical and chemical characteristics 1) Concrete: The ~:’C:::Qlle concrete of Jasmine isolated from flowers in June Lcnd C.:::-tober was inferior in quality to those extracted in other months. Thepercentage of esters was high in the concrete obtained in July, August and September (29.3%, 27.9% and 26.4% respectyely). |