Naslov
Influence of Encapsulation Parameters on the Retention of Polyphenols in Blackthorn Flower Extract.

Autori
Gaćina, Nikolina ; Elez Garofulić, Ivona ; Zorić, Zoran ; Pedisić, Sandra ; Dragović-Uzelac, Verica

Izvornik
Processes (2227-9717) 10 (2022), 12; 2517, 13

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
blackthorn flowers ; spray-drying ; wall material ; UPLC-MS/MS ; polyphenols

Sažetak
In order to utilize the benefits of blackthorn flower polyphenols and provide their stabilization during processing and storage, and to facilitate their application in functional food products, this study aimed to evaluate the encapsulation parameters during the spray-drying process of blackthorn flower extract. The effect of the type of wall material (maltodextrin (MD) and its mixtures with gum arabic (GA) and inulin (IN)), its ratio to extract dry matter (0.5, 1, and 2) and drying temperature (120, 150, and 180 ◦C) on the concentration of different polyphenolic groups was studied. While the lowest applied amount of wall material at the lowest drying temperature enabled efficient encapsulation of all polyphenolic groups, the type of wall material applied caused significant differences in retention. The highest concentrations of both phenolic acids and flavonoids were achieved with the addition of 25% of GA in MD. Unlike the addition of GA, mixtures of MD with IN did not show a positive effect on the retention of polyphenols. Selected encapsulation parameters ensured the high retention of total phenolics, namely 87.87% of the content determined in the liquid extract prior to spray drying, thereby providing a polyphenol-rich product with great potential for application in functional food and the nutraceutical industry.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija, Nutricionizam

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