4. Conclusions
Drying of camu-camu pulp causes a decrease of in vitro antioxidant capacity, mainly associated to ascorbic acid and polyphenol degradation. The decrease is more intense for spouted bed drying compared to freeze-drying. Use of maltodextrin may protect the bioactive contents, mainly proanthocyanidins. Despite the observed losses caused by the drying process, camu-camu powders still retain high levels of phenolics, ascorbic acid, proanthocyanidins, antioxidant and antimicrobial activity. Therefore, they represent good sources as antioxidants and antimicrobials and may find several applications in functional food development.
4. ConclusionsDrying of camu-camu pulp causes a decrease of in vitro antioxidant capacity, mainly associated to ascorbic acid and polyphenol degradation. The decrease is more intense for spouted bed drying compared to freeze-drying. Use of maltodextrin may protect the bioactive contents, mainly proanthocyanidins. Despite the observed losses caused by the drying process, camu-camu powders still retain high levels of phenolics, ascorbic acid, proanthocyanidins, antioxidant and antimicrobial activity. Therefore, they represent good sources as antioxidants and antimicrobials and may find several applications in functional food development.
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