Studies on the Production of Protein Hydrolysates from Palm Kernel Meal and Jatropha Curcas Seed Meal
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Three trials were conducted to study the optimum conditions required for production of protein hydrolysates from palm kernel
meal and Jatropha curcas seed meal. Hydrochloric (HCI) and sulphuric (H2S04) acids of varying concentrations (2, 4, 6, 8, 10
moles dm") were tested for hydrolysis of each of the two plant sources at different temperatures (65, 80, 95, 110, 125°C) and
for different durations (6, 12, 18, 24,' 30 h). Results indicated that with both acids, protein hydrolysates yield and amino acid
decomposition were positively and significantly correlated with acid concentration, temperature and duration of hydrolysis. However,
HCI produced higher yield of hydrolysates with lower decompositiQn of amino acids from both p'rotein sources. High yield of
hydrolysates coupled with higher degree of amino acid decomposition were observed in J. curcas seed meal tllan in palm kernel
meal. Optimum yield of hydrolysates was obtained from J. curcas seed meai when hydrolysed with either 6 moles dm-" HCI or
8 moles dm" H2S04 at 95°C for 18 h. In case of palm kernel seed meal, optimum yield was achieved at 11O°Cwith either 8 moles
dm-"HCI or 10 moles dm" H2S04, for 24 hand 18 h, respectively
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Q Science (General)