Juice quality of two new mandarin-like hybrids (Citrus clementina Hort. ex Tan x Citrus sinensis L. Osbeck) containing anthocyanins.
Tacle and Clara [Monreal clementine (Citrus clementina Hort. ex Tan) x Tarocco orange (Citrus sinensis L. Osbeck)] are two new triploid citrus hybrids developed by the CRA-Istituto Sperimentale per l'Agrumicoltura (Acireale, Italy). The fruits are easy-peeling and juicy, have a pleasant taste like the Tarocco orange, and are sweet like the Monreal clementine. In addition, a distinctively attractive characteristic of these mandarin-like fruits is the red-pigmented flesh caused by the presence of anthocyanins. This study reports the juice quality attributes of fresh fruits harvested at different ripening stages and of cold-stored fruits kept for 104 days at 6+/-1 degrees C and 90-95% relative humidity. Physico-chemical analyses showed that the fresh-fruit juice yield ranged between 39 (Tacle) and 41% (Clara); these values were 11-14% lower after 104 days of storage. Vitamin C content in the Clara juice was decisively higher than that in the Tacle juice. Juice anthocyanins and other polyphenols increased during cold storage. These results show that low-temperature storage enhances the functional attributes of Tacle and Clara fruit juices.
Rapisarda
Paolo
P
CRA-Istituto Sperimentale per l'Agrumicoltura, Corso Savoia, Acireale CT, Italy. paolo.rapisarda@entecra.it
Bellomo
Santina Elisabetta
SE
Fabroni
Simona
S
Russo
Giuseppe
G
D000872:Anthocyanins / Q000032:analysis*; D001628:Beverages / Q000032:analysis*; D002957:Citrus / Q000737:chemistry*; D032084:Citrus sinensis / Q000737:chemistry*; D003080:Cold Temperature; D005519:Food Preservation / Q000379:methods; D005638:Fruit / Q000737:chemistry* / Q000254:growth & development; D006824:Hybridization, Genetic
D000872:Anthocyanins