Six papaya (Carica papaya L.) cultivars, grown in a Mediterranean climate under greenhouse conditions, were screened for physicochemical properties, antioxidant capacity, nutritional and sensory characteristics. The fruits, harvested with more than 50% of yellow surface (between 60% and 77%) were tested for carotenoids content, phenolic content, reducing activity (ABTS) and cellular antioxidant activity (CAA₅₀). The physicochemical traits were measured in terms of the titratable acidity and soluble content whereas proximal composition along with moisture, fats, total sugar, ash, vitamin A, C and E content. Moreover, the sensory profile was analyzed by a semi-trained panel. Although the six analyzed cultivars reached qualitative characteristics to satisfy market needs, significant differences among them were found in a genotype-dependent manner. In particular, Cartagena and Maradol cultivars evidenced the highest values of minerals and vitamins, carotenoids, polyphenols, ABTS and CAA₅₀ and reached the best commercial requisites (size, total soluble solids content/titratable acidity ratio). As for sensory analysis, we observed significate differences only for sweetness, juiciness, odor and flavor of peach and exotic fruits whereas descriptors related to unpleasant defects or sensations always have very low scores in all the observed cultivars. These results highlight the possibility of obtaining quality papaya fruits in a Mediterranean climate using greenhouse growing.

中文翻译：

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地中海气候中温室条件下种植的六个木瓜品种的理化，营养和感官特性

筛选了在温室条件下在地中海气候中生长的六个木瓜（Carica papaya L.）品种的理化特性，抗氧化能力，营养和感官特性。测试收获的果实具有超过50％的黄色表面（介于60％和77％之间）的类胡萝卜素含量，酚含量，还原活性（ABTS）和细胞抗氧化活性（CAA ₅₀）。根据可滴定的酸度和可溶性含量来测量理化特性，而近端的成分以及水分，脂肪，总糖，灰分，维生素A，C和E含量。此外，通过半训练的小组分析了感官特征。尽管六个被分析的品种达到了满足市场需求的定性特征，但是它们之间存在显着差异，这取决于基因型。特别是，卡塔赫纳（Cartagena）和马拉多（Maradol）品种的矿物质和维生素，类胡萝卜素，多酚，ABTS和CAA _50的价值最高。并达到了最佳的商业要求（尺寸，总可溶性固形物含量/可滴定酸度比）。至于感官分析，我们仅在桃子和奇异果的甜度，多汁性，气味和风味上观察到了显着差异，而与令人不快的缺陷或感觉有关的描述符在所有观察到的品种中始终得分非常低。这些结果凸显了通过温室栽培在地中海气候下获得优质木瓜果实的可能性。