Naslov
Stability of β -carotene during candying and drying of mandarin peels

Autori
Levaj, Branka ; Dragović-Uzelac, Verica ; Bursać, Danijela ; Biček, Martina ; Čeh, Melita

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Intrafood 2005 Congress Proceedings Innovations in traditional foods / Fito, Pedro ; Toldra, Fidel - London : Delhi : Elsevier, 2005, 1023-1026

Skup
Innovations in traditional foods

Mjesto i datum
Valencia, Španjolska, 25.10.2005. - 28.10.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mandarin pulp and peel; mandarin products; carotenoids; HPLC

Sažetak
Carotenoid`s content of pulp and peel in four mandarin cultivars (Citrus unshiu cv. Owari and cv. Saigon, Citrus clementina cv. Corsica SRA-63, obtained from Neretva valley, Croatia ; and Citrus clementina cv. Hernandina, grown in Spain) and their products have been analyzed by using HPLC with UV-VIS PDA detection. Furthermore, effects of domestic processing into juice, low sugar jam, candied and dehydrated peels on carotenoids were monitored. The highest content of carotenoids was found in all fresh samples, whereas fresh pulps contained higher amounts than fresh peels, though there were some differences between cultivars. Carotenoids in both mandarins` juices were more stable during the processing than those in clementines` juices. Processing into low sugar jams had influence on decreasing of carotenoids, whereas the most stable were carotenoids of Citrus Clementine cv. Hernandina. Dehydrated mandarins` peels contained 3-fold lower amount of carotenoids than the fresh peels, whereas the amount of carotenoids in dehydrated clementines` peels did not change remarkably. The loss of carotenoid content was the highest during processing of candied peels, so all samples of candied peels contained the lowest amount of carotenoids compared to other investigated products. In all samples lutein, zeaxanthin, β -cryptoxantin, α -carotene and β -carotene have been detected. Therefore, β -carotene was dominant in all investigated samples with the concentration ranging from 0, 0173 mg/100 g in candied peel of Citrus clementina cv. Hernandina to 2, 5706 mg/100g in fresh pulp of Citrus unshiu cv. Owari with the exception of Citrus clementina cv. Hernandina fresh pulp, where lutein was the most represented.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA