Physical and functional properties of seeds of three cultivars of guar bean [Cyamopsis tetragonoloba L. (Taub.)]

The present study was undertaken to examine the physical and functional properties of seeds of three cultivars viz. G 80, Ageta 112 and HG 365 of guar bean [Cyamopsis tetragonoloba L. (Taub.)]. Of the three cultivars, HG 365 revealed lightest colour value (39.22), followed by G 80 and Ageta 112. Slightly negative b* value represented an inclination of guar seed towards blue tinge. The average seed length, width, and thickness were 4.35 to 4.96 mm, 3.86 to 4.13mm and 2.24 to 2.84 mm, respectively. HG 365 exhibited highest bulk and true density while G 80 showed highest angle of repose i.e. 26.950. Hydration index and swelling index of the seeds varied significantly in the range of 1.28 to 1.49 and 0.79 to 1.08, respectively. Ageta 112 showed highest water absorption capacity while maximum water solubility index was observed for G 80. Ageta 112 revealed best foaming properties and minimum oil absorption capacity among all the three cultivars, indicating its suitability for food processing.