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Abstract Bagasse, peels and seeds from fruits are usually discarded as byproducts. However, these byproducts contain high levels of bioactive compounds. The objective of this study was to microencapsulate bioactive compounds from acerola byproducts by spray drying (SD) and freeze-drying (FD) using maltodextrin (MD), gum arabic (GA), and whey protein isolate (WPI) as carrier agents and then evaluate their stability in a gelatin food-model system. Moisture, solubility, and hygroscopicity of the powders were 5.02–10.05 %, 78.83–92 %, and 7.64–14.76 %, respectively. The best method for obtaining phenolic compounds and flavonoids was SD/GA, which yielded 1855.11 mg GAE/100 g and 289.38 μg/g of quercetin. The best method for obtaining anthocyanins was FD/GA, which yielded 33.85 mg of cy-3-glu/100 g. Powder dried by SD/MD could be used as a natural dye. Our results show that acerola byproducts has potential for reuse, and microencapsulation is a good technique for generating stable extracts.
Gomes et al. (Tue,) studied this question.
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