Protein digestibility (in vitro) was found to be 35.0 to 47.1 per cent in r
aw unprocessed seeds of different pigeon pea cultivars. Significant (p < 0.
05) varietal differences were noticed. Low protein digestibility was attrib
uted to the presence of phytates, trypsin inhibitors and polyphenols in pig
eon pea. Various domestic processing and cooking treatments viz. soaking, d
ehulling, germination, cooking etc. improved the in vitro digestibility of
protein of all the pigeon pea cultivars to varying extents i.e. 3 to 59 per
cent over the control; the highest being in soaked dehulled and pressure c
ooked and the lowest being in 6 h soaked legume grains.