At different germination stage, rice grains
undergo different biochemical changes. Changes in
germination rate, reducing sugars, free amino acids,
soluble protein and total protein, and activities of
amylase and protease during 5 days of germination
was investigated by Veluppillai et al. (2009) and
found that free amino acids and soluble protein
contents increased on the 5th day of germination
of rice grains grown in Sri Lanka.