2) Analysis of Free-Amino Acids Profile.The free-amino acids profile analysis of the samples was assayed according to
Ojinnaka and Ojimelukwe, with minor modifications. First of all, the samples were hydrolyzed by weighing 0.5 g into
20 mL volumetric flask.The volumetric flask was then filled to the mark with 0.1M hydrochloric acid and was then shaken
thoroughly to mix. The content was left over night to extract;