The composition of Fenugreek seeds in the form of powder, ash, and oil is investigated through FTIR and FT Raman spectra measurements. The results indicate that Fenugreek seeds (powder) are rich in proteins. Fats (lipids) and starch are present in small amounts in the seeds. The FTIR absorption bands of seed powder appeared at: 3365 ) were considered for measuring the iodine values. These ratios (0.3609, 0.4916, and 0.4129) revealed that the iodine value of fenugreek oil is higher than that of other oils. On the other hand, the ash of fenugreek is very rich in phosphate compounds. The spectra showed absorption bands at frequencies 1082, 1000, 618, and 566 cm -1 , and the FT Raman spectrum showed a strong absorbance band at 793 cm -1 , which is due to phosphate compounds. It could be concluded that the inorganic part of fenugreek consists mainly of phosphate compounds. The Fenugreek seed contains proteins, fat, fiber, and ash, which is in complete harmony with AACC, 1980.
The IR spectra of wool fibers y-irradiated in mixtures of two organic solvents were recorded. The analysis of the spectra showed that irradiation of wool fibers in the presence of certain mixtures results in the appearance of an absorption band at 1725 cm-' corresponding to the absorption of the carbonyl groups. The intensity of the COO-band at 1400 cm-' is influenced by the nature of the solvents and the concentration of each solvent in the mixture. This band disappears when the fibers are irradiated in the presence of ethyl alcohol. The intensities of the absorption bands in the region 1000-1200 cm-' vary also according to the nature of the solvents. Furthermore, the absorbances of amide I and amide I1 bands were determined. It was found that the induced changes in the absorbances of these bands depend on the dipole moment of the solvents. 635 Copyright 0 1997 by Marcel Dekker, Inc. Downloaded by [Northern Arizona University-Cline Library] at 16:09 03 January 2015 636 MOHARRAM ET AL.
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