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Abstract - 57 - SUMMARY 1- This investigation was carried put to determine the .chemic.alcomposition of local fenugreek seeds. , ’ j 2- Determination of fenugreek seeds chemical composition proved that they contain a considerable amount of fat, protein, carbohydrates and essential oils. The obtained results ,agreed with or differed from those mehtioned in the literature. 3- Yield of fenugreek seeds oleoresins varied from solvent ’to another, however, the lower percent was obtained by hexane while the higher one was obtained by ’ethyl alcohol. 4- The physico-chemical properties of fenugreek seeds oleoresins differed by different solvents. 5- The chemical c~sition of fenugreek seeds oleoresins differed frem solvent to another. Hexane extract gave a Higher percent of fat while alcohol gave the lowe”’Obe. carbohydrates and protein showed high ~tages in alcohol oleoresin than those i:~,~-:~,:-;’, of hexane ,andt.”,one9 l-~;;;’ : -. ~~: .!~ ; ;:;. .~>-,~~: - 58 6- Roasting fenugreek seeds at. different temperatures for one hour-affected the yield of fenugreek seeds pleoresins extracted by hexane, acetone and alcohol. The oleoresins percent increased by increasing roasting temperature except hexane oleoresin obtained from roasted seeds at 150°C and 175°C. 7- ~oasting·fenUgreek seeds at different temperatures affected the physical and chemical eharacteristics, of their oleoresins. 8- Gas liquid chromatography technique identified eleven voltile components in fenugreek seeds oleoresin obtained by hexane where 7 of them were found in acetone fenugreek seeds oleoresin. The identified components were ethyl cinnamate, teripinyl butyrate, citronellyl i50 butyrate, citronellyl 17.00, 40.50 and 1.00 percent ·respectively. Significant diff~nces in the components and their percentages were>’tJhown •. 9- The fatty acids ·tt oleoresins were studied in roasted seeds at differe~ temperatures andunroasterl s~erl8. ---- -_ .....~_._-- - 59 - 10- The Infrared spectra of hexane fenugreek seeds oleoresins could be taken as a truly characteristic ”finger prints”. Besides, infrared spectroscopy might be used as a guide for the qualitative analysis of this oleoresions. - Roasting of fenugreek seeds affected oleoresins infrared absorption properties. |