Juice prepared from lemon (Eureka), mandarin (Kinnow) and orange (Orlando) fruits cultivated in Saudi Arabia were analyzed for different physico-chemical properties, total phenolics, ascorbic acid and antiradical activities. Juices from lemon, mandarin and orange 8.97, 16.1 and 11.78% total soluble solids; 5.73, 1.37 and 1.69% titrable acidity; 79.21, 91.18 and 107.37 mg GAE/100mL total phenoli...

based on the valuable antioxidant activity of citrus fruits, in present study the effect of ‎rootstock and the type of tissue on some fruit quality parameters including phenol, ‎flavonoid, antioxidant and the content of hesperidin and naringin of orange and mandarin ‎was studied. the experiment was conducted as a factorial design based on complete ‎randomized blocks with four replications. resu...

To investigate the relationship between a carotenoid profile and gene expression for carotenoid cleavage dioxygenases, three citrus varieties that exhibit different 9-cis-violaxanthin levels in their juice sacs, Satsuma mandarin (Citrus unshiu Marc.; a variety accumulating a low level of 9-cis-violaxanthin), Valencia orange (Citrus sinensis Osbeck; variety accumulating a high level of 9-cis-vio...

During the last decade there has been a continuous rise in consumption of fresh easy-to-peel mandarins. However, mandarins are much more perishable than other citrus fruit, mainly due to rapid deterioration in sensory acceptability after harvest. In the current review we discuss the biochemical components involved in forming the unique flavor of mandarins, and how postharvest storage operations...

The relationship between carotenoid accumulation and the expression of carotenoid biosynthetic genes during fruit maturation was investigated in three citrus varieties, Satsuma mandarin (Citrus unshiu Marc.), Valencia orange (Citrus sinensis Osbeck), and Lisbon lemon (Citrus limon Burm.f.). We cloned the cDNAs for phytoene synthase (CitPSY), phytoene desaturase (CitPDS), zeta-carotene (car) des...

Immediate allergic reactions to orange are rare and immunoglobulin (Ig) E–mediated [1]. We report the case of a 28-year-old man with anaphylaxis induced by fresh orange juice. The reaction was dose-dependent and could only be confi rmed by challenge test, because specifi c IgE to orange was undetectable by skin prick test (SPT) and CAP immunoassay. The patient had experienced identical anaphyla...