Isolation and chemical investigation of teak (Tectona grandis linn) seed proteins

Proteins were extracted from the deoiled seeds ofTectona grandis Linn., Fam. Verbenaceae, a quality lumber source, in aqueous solutions of various pH's or by different concentrations of NaCl at pH 8.0. Chemical analysis of isolated protein identified 15 amino acids, of which eight were essential. Gel filtration on Sephadex G‐200 revealed the presence of six components, whose molecular weights were determined by two comparable standard methods. Seven components were resolved electrophoretically (SDS‐PAG electrophoresis) and their molecular weights were found to be 118,900, 92,300, 72,400, 62,400, 43,600, 39,800 and 32,400.