Synthetic dyes in food can cause severe problems for health, so they need to be replaced by natural dyes. However, natural dyes are unstable, and encapsulation is one way to maintain the stability of natural dyes. This study was conducted to determine the best microencapsulation coating, storage stability, and color variations produced by butterfly pea, sappan wood, and turmeric extracts. The coating materials used were maltodextrin, carrageenan, and carboxy methyl cellulose (CMC) using the following formulations: 85% maltodextrin and 15% carrageenan (formula A) and 90% maltodextrin and 10% carrageenan (formula B) for coating butterfly pea and sappan wood extracts. Turmeric extracts were coating using 85% maltodextrin and 15% carrageenan (formula A) and 75% CMC and 25% starch (formula C). The encapsulation with maltodextrin (90%) and carrageenan (10%) was the best of encapsulation formula for butterfly pea and sappan wood extract. However, the encapsulation with maltodextrin (85%) and carrageenan (15%) was the best of encapsulation formula for turmeric extract. The green color was obtained from mixing butterfly pea and turmeric dyes in 1:4 ratio, purple from mixing butterfly pea and sappandyes in 1:8 ratio, and orange from mixing turmeric and sappan dyes in 1:2 ratio.

Porang (Amorphophallus muelleri) is a tuber plant that contains a lot of glucomannan fiber. Glucomannan is a soluble fiber that can form a gel that mimics the characteristics of fat so that it has the potential to be used as a fat replacer in high-fat products such as cookies. The purpose of this study was to determine the effect of using fat replacer on the sensory acceptability and characteristics of cookies. The steps carried out in this study were to determine the concentration of porang flour in fat replacer (5 and 7.5%). Fat replacer with firmness that is closest to margarine at a concentration of 5%. Furthermore, cookies were made with fat replacer substitution (25, 50, and 75%). The cookies were then tested for their organoleptic properties using the hedonic method on the parameters of color, aroma, taste and texture. The best cookie formulation was obtained at 25% substitution, which was then compared with the control formulation by testing the parameters of proximate, crude fiber, texture, and oxalate content. The results showed that cookies with fat replacer had lower levels of ash, fat, protein, calories, and hardness than the control, although the difference in fiber and protein content was not significant.