Département PERSYST UMR Qualisud, TAB-95/16, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Montpellier, France.
J Agric Food Chem. 2009 Oct 14;57(19):9160-8. doi: 10.1021/jf901668d.
A selection of orange and mandarin varieties belonging to the same Citrus accession and cultivated in Mediterranean (Corsica), subtropical (New Caledonia), and tropical areas (principally Tahiti) were studied to assess the effect of genotype and environmental conditions on citrus juice carotenoid content. Juices from three sweet orange cultivars, that is, Pera, Sanguinelli, and Valencia ( Citrus sinensis (L.) Osbeck), and two mandarin species ( Citrus deliciosa Ten and Citrus clementina Hort. ex Tan), were analyzed by HPLC using a C(30) column. Annual carotenoid content variations in Corsican fruits were evaluated. They were found to be very limited compared to variations due to varietal influences. The statistical analysis (PCA, dissimilarity tree) results based on the different carotenoid compounds showed that citrus juice from Corsica had a higher carotenoid content than citrus juices from tropical origins. The tropical citrus juices were clearly differentiated from citrus juices from Corsica, and close correlations were obtained between beta-cryptoxanthin and phytoene (r = 0.931) and beta-carotene and phytoene (r = 0.918). More broadly, Mediterranean conditions amplified interspecific differentiation, especially by increasing the beta-cryptoxanthin and cis-violaxanthin content in oranges and beta-carotene and phytoene-phytofluene content in mandarins. Thus, at a quantitative level, environmental conditions also had a major role in determining the levels of carotenoids of nutritional interest, such as the main provitamin A carotenoids in citrus juice (beta-cryptoxanthin and beta-carotene).
选择了一些属于同一柑橘属植物的橙色和蜜柑品种，这些品种种植在地中海（科西嘉岛）、亚热带（新喀里多尼亚）和热带地区（主要是塔希提岛），以评估基因型和环境条件对柑橘汁类胡萝卜素含量的影响。用 HPLC 法（C30 柱）分析了三个甜橙品种（即 Pera、Sanguinelli 和 Valencia（柑橘 sinensis（L.）Osbeck））和两个宽皮柑桔品种（Citrus deliciosa Ten 和 Citrus clementina Hort. ex Tan）的果汁。评估了科西嘉岛果实的年度类胡萝卜素含量变化。与品种影响引起的变化相比，这些变化非常有限。基于不同类胡萝卜素化合物的统计分析（PCA、不相似树）结果表明，科西嘉岛的柑橘汁的类胡萝卜素含量高于热带起源的柑橘汁。热带柑橘汁与科西嘉岛的柑橘汁明显不同，β-隐黄质与番茄红素（r = 0.931）和β-胡萝卜素与番茄红素（r = 0.918）之间存在密切相关性。更广泛地说，地中海条件放大了种间差异，特别是通过增加了橙色的β-隐黄质和顺式-叶黄素以及蜜柑的β-胡萝卜素和番茄红素-叶黄素的含量。因此，在定量水平上，环境条件也在确定具有营养意义的类胡萝卜素水平方面发挥了主要作用，如柑橘汁中的主要维生素 A 前体类胡萝卜素（β-隐黄质和β-胡萝卜素）。
