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Characteristics and antioxidative activity of gelatin and gelatin hydrolysate powders from scale of spotted golden goatfish using maltodextrin as a carrier agent at different ratios [1:0, 2:1, 1:1 and 1:2 (w/w)] were investigated. Gelatin hydrolysates with 40 % degree of hydrolysis exhibited the highest antioxidative activity. With increasing maltodextrin proportions, the resulting powders showed an increase in yields, total sugar content and whiteness with coincidental decrease in [Formula: see text], [Formula: see text]-values and browning intensity. Solubility of gelatin powder increased with increase in maltodextrin proportion. Gelatin powder was spherical with smooth surface of hydrolysate varied, regardless of maltodextrin levels. Gelatin hydrolysate powder form, uniform agglomerates when maltodextrin was incorporated. DPPH and ABTS radical scavenging activities and ferric-reducing antioxidant power of gelatin and gelatin hydrolysate decreased when maltodextrin was used as a carrier agent. Thus, maltodextrin levels directly affected characteristics and antioxidative activity of gelatin and gelatin hydrolysate powders.

journal of food science and technology/journal of food science and technology

Effect of maltodextrin on characteristics and antioxidative activity of spray-dried powder of gelatin and gelatin hydrolysate from scales of spotted golden goatfish