Peanut protein film as affected by drying temperature and pH of film forming solution
1999
Jangchud, A. | Chinnan, M.S.
Films were made from peanut protein concentrate solution of pH 6.0, 7.5 or 9.0, and dried at 70, 80 or 90 degrees C. Both total solubility and protein solubility of film decreased with increasing temperature but increased with increasing pH. Film color was darker and more yellow when pH increased. Tensile strength (TS) and elongation (E) increased but water vapor-permeability (WVP) and oxygen permeability (OP) decreased as temperature increased. At pH 9 and 90 degrees C, film had the lowest WVP and OP, and the highest TS.
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