RESULTS: All protein isolates had a protein content in the range of 85.2–88.2%. The highest trypsin inhibitory activity was found
in BGPI. All protein isolates exhibited satisfactory balanced amino acids with respect to the FAO/WHO pattern. MBPI and BBPI
had three predominant proteins with a molecular weight (MW) range of 42–54 kDa, whereas BGPI had two dominant proteins
with MW of 52 and 62 kDa. Based on differential scanning calorimetric analysis, MBPI and BGPI had two endothermic peaks,
whereas three peaks were found for BBPI. All protein isolates exhibited similar FTIR spectra, indicating similarity in functional
group and structure. All protein isolates showed a minimum protein solubility at around pH 4–5.