Changes of total polyphenolics and vitamin C in acerola during storage and spray drying process

Acerola fruit is known to have a high vitamin C concentration. Polyphenolics are also natural oxidants occurring in plants. Understanding changes of these components during storage conditions and processing steps become important. | 69 Nong Lam University, Ho Chi Minh City Changes of total polyphenolics and vitamin c in acerola during storage and spray drying process Le Trung Thien1 , Luong Hong Quang1 , Angeli Doliente Cabaltica2 , Le Quoc Tuan3 and Katleen Raes4 2 1 Nong Lam University, Ho Chi Minh City, Vietnam International University - Vietnam National University HCM City 3 Kasetsart University, Bangkok, Thailand 4 Ghent University, Kortrijk, Belgium ARTICLE INFO ABSTRACT Research Paper Acerola fruit is known to have a high vitamin C concentration. Polyphenolics are also natural oxidants occurring in plants. UnderRecieved: October 23, 2018 standing changes of these components during storage conditions Accepted: November 02, 2018 and processing steps become important. Results of this research showed that there was significant difference in vitamin C and total polyphenolic concentration and three popular varieties of acerola fruits from Tien Giang province. Concentrations of both vitamin Keywords C and polyphenolics reduced rapidly during storage at room temperature. After three days, vitamin C reduced about 40% whereas Acerola total polyphenolics reduced about 70%. The losses at refrigerated Vitamin C temperature after 3 days were less than 15% and less than 30%, Polyphenolics for vitamin C and total polyphenolics, respectively. Frozen storage Spray drying of the fruit maintained quite well vitamin C and polyphenolics. Storage Acerola pomace juice was concentrated before spray drying and, at the same vacuum pressure, temperatures influenced significantly the retention of vitamin C and total polyphenolics. Optimization Corresponding author of spray drying conditioners including inlet hot air temperatures and added ratio of maltodextrin (drying carrier) was also carried out to obtain high recovery of dry matter, total polyphenolics and Le Trung Thien Email: vitamin C. 1. Introduction of vitamin C for daily diet or a supplement to other foods. As well, .

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