Phycoerytrin is a red pigment found in red algae. Red algae Gracilaria sp. potential to be a sour... more Phycoerytrin is a red pigment found in red algae. Red algae Gracilaria sp. potential to be a source of natural dye because it contains phycoerythrin. Phycoerythrin is unstable to light, pH, and temperature. The purpose of this study was to determine the effect of pH and temperature on the stability of the dye extract from the red algae Gracilaria sp. and determine the pH and temperature that best maintain the constancy of the red algae Gracilaria sp. extract during storage. The design in this study used a completely randomized design with two factors, namely pH and temperature. First factor was the pH treatment which consist of three levels namely pH 4, pH 7 and pH 10 and second factor was initial temperature consist of two levels, namely 4±2?C and 28±2?C. The results showed that pH had a very significant effect (P<0.01) on the total phycoerythrin, brightness (L*), redness (a*) and yellowness (b*) at weeks 2, 3, 4. Temperature treatment has a very significant effect on the total ...
Phycoerytrin is a red pigment found in red algae. Red algae Gracilaria sp. potential to be a sour... more Phycoerytrin is a red pigment found in red algae. Red algae Gracilaria sp. potential to be a source of natural dye because it contains phycoerythrin. Phycoerythrin is unstable to light, pH, and temperature. The purpose of this study was to determine the effect of pH and temperature on the stability of the dye extract from the red algae Gracilaria sp. and determine the pH and temperature that best maintain the constancy of the red algae Gracilaria sp. extract during storage. The design in this study used a completely randomized design with two factors, namely pH and temperature. First factor was the pH treatment which consist of three levels namely pH 4, pH 7 and pH 10 and second factor was initial temperature consist of two levels, namely 4±2?C and 28±2?C. The results showed that pH had a very significant effect (P<0.01) on the total phycoerythrin, brightness (L*), redness (a*) and yellowness (b*) at weeks 2, 3, 4. Temperature treatment has a very significant effect on the total ...
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