Siamese orange is classified as a citrus that contains chlorophyll and can be used as a natural dye. This study aims to examine the impact of blanching time and temperature on the best results of Siamese orange peel powder. This study applies a Randomized Block Design from the first 2 aspects (blanching temperature, 3 levels of 60°C, 70°C, and 80°C) and the second (blanching time, 3 levels of 2, 4, and 6 minutes). The report is analyzed using ANOVA. From the results, it was found that, the blanching temperature treatment greatly affected the water content, chlorophyll content, total beta-carotene content, greenness level (a *), yellowness level (b *) and sensory tests ( hedonic), but did not affect the brightness level (L *). Meanwhile, the blanching time treatment greatly affects the total chlorophyll content, total beta-carotene content, brightness level (L*) and overall sensory acceptance test, but does not affect the water content and greenness level (a*).
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