Analysis of Physical Characteristics, Composition of Tephrosia vogelii Hook f.Seeds and its Oil Component
2009, 48 (1):
The physical characteristics and chemical macro components of Tephrosia vogelii Hook f. seeds were analyzed. The constitutes of fatty acid and glyceride in oil were determined by gas chromatography-mass spectroscopy（GC-MS）and the technology of liquid chromatographymass equipped with selective detector of electrospray ionization anionic trap (LC-MSD-Trap-XCT). The nutritional evaluation about oil was evaluated. The result showed that the size of seeds was 4.63 mm×4.01 mm×1.92 mm, 1 000grain weight 1.52 g, soil bulk density was 659.8 g/L, the angle of automatic flow was 25.89°, the angle of repose was 23.15°, mass fraction of water and volatile matter was 9.89%, crude fat was 13.47%, crude protein was 38.73%, carbohydrate was 33.21% (soluble sugar 10.54%, starch 10.76%, crude fiber 11.91%), ash 4.84% Acid value, peroxide value, saponification value, iodine value, density and refraction coefficient of oil of Tephrosia vogelii Hook f.seeds were 2.7 mg/g, 1.17 mmol/kg, 188 mg/g, 1.18 g/g, 0.859 9 g/mL, 1.464 8, respectively Fatty acid ingredients were as following(w/%): Tetradecanoic acid was 0.15%，pentadecanoic acid 0.031%, hexdecanoic acid (palmitic acid) 18.68%，hexadecenoic acid 0.023%，heptanoic acid 0.12%，stearic acid 6.46%，oleic acid 19.26%，linoleic acid 38.76%，linolenic acid 8.38%，eicosanoic acid 1.90%，eicosenoic acid 0.52%，heneicosanoic acid 0.12%，docosanoic acid 4.09%，tricosanoic acid 0.16%, tetracosanoic acid 1.35%, furthermore, amount of unsaturated fatty acid was 66.94% Monoglyceride esters of fatty acid content were 0.11% diglyceride of fatty acid 0.180%, triglyceride of fatty acid 99.687% in dried oil. Tephrosia vogelii Hook f. seeds whose indexes were all accorded with Chinese and other countries’edible soybean oil standard (GB/T15352003, Codex-Stan 210) contained high amount of fat and protein and were rich with human essential linoleic acid and linolenic acid.
Related Articles |