Cebadera Laura, Dias Maria Inês, Barros Lillian, Fernández-Ruiz Virginia, Cámara Rosa Mª, Del Pino Ángel, Santos-Buelga Celestino, Ferreira Isabel C F R, Morales Patricia, Cámara Montaña
Departamento de Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid, Pza. Ramón y Cajal s/n., 28040 Madrid, Spain.
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
Foods. 2020 May 16;9(5):642. doi: 10.3390/foods9050642.
The most relevant nutrients and bioactive compounds (soluble sugars, dietary fiber, ascorbic acid and organic acids, individual phenolic compounds, fatty acids, and tocopherols) as well as antioxidant activity have been characterized in three extra early varieties of clementine ( Hort ex Tan. Basol, Clemensoon and Clemenrubí) cultivated in Valencia (Spain). Clementines are a relevant source of bioactive compounds, such as vitamin C (values around 80 mg/100 g), allowing to satisfy the recommended daily intake with the consumption of a normal portion. Sucrose was the most abundant sugar, and potassium the main mineral while manganese was the least. Fat content was very low (<0.5 mg/100 g), with palmitic acid and α-tocopherol the most abundant fatty acid and vitamin E form, respectively. Flavonoids were the predominant phenolic compounds, with narirutin/naringin and (neo)hesperidin the best represented ones. The antioxidant capacity evaluated by reducing power, DPPH, and β-carotene bleaching inhibition assays was satisfactory with values similar to those reported in other citrus fruits. Thus, this fruit is a relevant source of bioactive compounds with antioxidant properties of interest for consumers and the food industry.
对西班牙巴伦西亚种植的三个极早熟克莱门氏小柑橘品种（奥尔蒂斯、克莱门松和克莱门鲁比）中的最相关营养成分和生物活性化合物（可溶性糖、膳食纤维、抗坏血酸和有机酸、单个酚类化合物、脂肪酸和生育酚）以及抗氧化活性进行了表征。克莱门氏小柑橘是生物活性化合物的重要来源，如维生素C（含量约为80毫克/100克），食用正常份量就能满足每日推荐摄入量。蔗糖是最丰富的糖类，钾是主要矿物质，而锰含量最少。脂肪含量非常低（<0.5毫克/100克），其中棕榈酸和α-生育酚分别是最丰富的脂肪酸和维生素E形式。黄酮类化合物是主要的酚类化合物，其中橙皮苷/柚皮苷和（新）橙皮苷含量最高。通过还原能力、DPPH和β-胡萝卜素漂白抑制试验评估的抗氧化能力令人满意，其值与其他柑橘类水果报道的值相似。因此，这种水果是生物活性化合物的重要来源，具有消费者和食品工业感兴趣的抗氧化特性。
