Wojdyło Aneta, Carbonell-Barrachina Ángel A, Legua Pilar, Hernández Francisca
Department of Fruit and Vegetable Processing, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Street, 51-630 Wroclaw, Poland.
Department of Agro Food Technology, Food Quality and Safety Group, Universidad Miguel Hernández de Elche, Ctra.de Beniel, km 3.2, 03312 Orihuela, Alicante, Spain.
Food Chem. 2016 Jun 15;201:307-14. doi: 10.1016/j.foodchem.2016.01.090. Epub 2016 Jan 21.
The interest in Ziziphus jujube is growing because it is an excellent source of nutrients and phytochemicals, and can contribute to a healthy diet. Nutritional compounds (phenolic compounds and L-ascorbic acid), and antioxidant capacity of 4 Spanish jujube cultivars were studied. Polyphenols were identified by LC-MS-QTof and quantified by UPLC-PDA-FL. A total of 25 polyphenolic compounds were identified and classified as 10 flavan-3-ols, 13 flavonols, 1 flavanone, and 1 dihydrochalcone. The content of total polyphenols (TP) ranged from 1442 to 3432 mg/100 g dry matter (dm) in fruits of the cultivars 'DAT' and 'PSI', respectively. Flavan-3-ols, the major group of polyphenols in jujube represented ∼92% of the TP content, whereas flavonols only amounted for about ∼8% each. The content of L-ascorbic acid was very high and took values in the range of 387-555 mg/100 g fresh weight (fw). Some Spanish jujube cultivars, especially 'PSI' and 'MSI', may be selected to promote the growth of cultivars with valuable nutritional and phytochemical beneficial effects on human health.
对酸枣的兴趣与日俱增，因为它是营养物质和植物化学物质的优质来源，有助于健康饮食。研究了4个西班牙酸枣品种的营养成分（酚类化合物和L-抗坏血酸）及抗氧化能力。通过液相色谱-质谱-四极杆飞行时间质谱仪（LC-MS-QTof）鉴定多酚类化合物，并通过超高效液相色谱-光电二极管阵列-荧光检测器（UPLC-PDA-FL）进行定量分析。共鉴定出25种多酚类化合物，分为10种黄烷-3-醇、13种黄酮醇、1种黄烷酮和1种二氢查耳酮。在‘DAT’和‘PSI’品种的果实中，总多酚（TP）含量分别为1442至3432毫克/100克干物质（dm）。黄烷-3-醇是酸枣中多酚的主要类别，约占TP含量的92%，而黄酮醇各占约8%。L-抗坏血酸含量非常高，在387 - 555毫克/100克鲜重（fw）范围内。可以选择一些西班牙酸枣品种，特别是‘PSI’和‘MSI’，来培育对人类健康具有宝贵营养和植物化学有益作用的品种。
