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ABSTRACT. Studies on the physico-chemical characteristics of seed oils of Mesua ferrea collected from different districts of Bangladesh revealed specific gravity (0.9287-09312), refractive index (1.4690-1.4739), solidification point [-4.0-(-4 .031) and polenske number (0.7891-0.8401). Glyceride classes were estimated to be monoglycerides (1.05-1.35 %), diglycerides (2.12-2.32 %) and triglycerides (87.65-89.50 %) whereas total lipid extracts were fractionated into neutral lipid (89.83-92.18 %), glycolipid (3.65-4.15 %) and phospholipid (1.98-2.68 %). Saturated and unsaturated fatty acids present in the oils were separated and amounted to be (27.40-29.11 %) and (65.85-68.31 %), respectively, depending upon the areas from where the seeds were collected. GLC analysis of the oil indicated the presence of palmitic acid (10.87%), linoleic acid (13.68%), oleic acid (55.93%) and stearic acid (14.19%) as major fatty acids in the oil. In addition, myristic acid (2.13%) and arachidic acid (2.921%) were also present in minor amount. In biochemical analysis, Mesua ferrea seeds contained total lipid (66.91-70.23 g %), moisture (4.02-5.05 g %), ash (1.46-1.50 g %), total protein (6.99-7.19 g %), water soluble protein (2.98-3.11 g %), starch (5.51-5.85 g %), crude fiber (1.22-1.98 g %), carbohydrate (15.88-18.68 g %) and energy value (700.55-724.15 kcal/100 g), while its leaves contained total lipid (2.32-2.44 g %), moisture (65.12-72.19 g %), ash (2.60-2.71 g %), total protein (4.23-4.85 g %), water soluble protein (1.47-2.01 g %), starch (3.06-3.27 g %), crude fiber (3.12-3.29 g %), carbohydrate (14.82-22.30 g %) and energy value (100.24-128.40 kcal/100 g ). The present investigations demonstrate that the results vary to some extent but not significantly enough with the locations from where samples were collected.

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ABSTRACT. The core objective of this research was to determine the characteristics of oils, nutritional composition and antimicrobial activities of T. anguina and S. mahagoni seeds. Physicochemical characteristics of oils implied higher degree of unsaturation in T. anguina whereas, S. mahagoni oil contained appreciable level of unsaturation. Tri-acyl-glycerols and neutral lipids were found to be most abounded components recorded to 86.2 and 91.3% for T. anguina and 87.0 and 89.4% for S. mahagoni, respectively. GLC analysis showed the presence of fatty acids from series C16:0 to C18:3 for T. anguina and C16:0 to C20:0 for S. mahagoni in which principal fatty acids accounted as punicic (45.1%) in T. anguina and linoleic (30.1%) in S. mahagoni seed oils. Of the major energy producing nutrients, the seed samples contained large amounts of lipid (36.1% in T. anguina and 57.9% in S. mahagoni) and protein (20.9% in T. anguina and 13.0% in S. mahagoni) and potentially useful amounts of other nutrients. The knowledge from the nutritional analysis could be important to its appropriate industrial use and for improvement in the nutritional value. Assessment of the anti-microbial studies reported herein revealed the crude extracts of T. anguina and S. mahagoni seeds were not significantly inhibition against most of the tested bacteria and fungi. This study may lead to further ethno-pharmacognostic investigations to identify new compounds with therapeutic promise. KEY WORDS KEY WORDS KEY WORDS