Naslov
Process optimisation of vacuum drying of different fruits

Autori
Jokić, Stela ; Šumić, Zdravko ; Tepić, Aleksandra ; Vidović, Senka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts and papers of international seminar "With food to health" / - , 2012

Skup
Book of abstracts and papers of international seminar "With food to health"

Mjesto i datum
Tuzla, Bosna i Hercegovina, 21.09.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
vacuum drying; fruit; response surface methodology; product quality

Sažetak
The objective of this research was to optimize the vacuum drying of different fruits in order to preserve health benefits phytochemicals, as well as textural characteristics. The drying was performed in a new design of vacuum dryer equipment. Response surface methodology was used for determining optimal drying temperature and vacuum pressure for drying process of different fruits in terms of getting better final product quality. The total solids, aw value, total phenolics, vitamin C, antioxidant activity, anthocyanin content, total color change and firmness were used as quality indicators of dried fruits. Within the experimental range of studied variables, the optimum conditions were established for vacuum drying of each investigated fruit. Separate validation experiments were conducted at optimum conditions to verify predictions and adequacy of the second-order polynomial models. The experimental values agreed with those predicted, thus indicating the success of response surface methodology in optimizing the investigated drying conditions.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA