Departamento de Nutrición y Bromatología II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, 28040-Madrid, Spain.
J Sci Food Agric. 2013 May;93(7):1692-8. doi: 10.1002/jsfa.5952. Epub 2012 Nov 14.
Wild vegetables have traditionally been consumed as part of the Mediterranean diet, being valuable sources of nutrients and bioactive compounds. The objective of this work was to analyse the carotenoid content of the edible young shoots of four species (Asparagus acutifolius L., Humulus lupulus L., Bryonia dioica Jacq. and Tamus communis L.) as part of a wider study on the characterisation of the nutritional composition of wild edible plants commonly consumed in Spain. Samples were gathered from two locations in Central Spain for two consecutive years.
Lutein, β-carotene, neoxanthin and violaxanthin were quantified by high-performance liquid chromatography with a photodiode array detector. Median concentration ranges (μg g(-1) edible wet weight) were: β-carotene, 3.39-6.69, lutein, 5.44–19.13;neoxanthin, 5.17-17.37; and violaxanthin, 2.08-8.93. The highest carotenoid content was that of B. dioica (59.01 μg g(-1)) and the lowest was found in A. acutifolius (17.58 μg g(-1)) [corrected].
Our results show that these wild young shoots are richer sources of carotenoids than many of the commercially available leafy vegetables.
野生蔬菜一直作为地中海饮食的一部分被食用，是营养物质和生物活性化合物的重要来源。本研究的目的是分析四种食用嫩茎（芦笋、啤酒花、杠柳和 Tamus communis）的类胡萝卜素含量，这是对西班牙常见食用野生植物营养成分特征进行更广泛研究的一部分。样本在两年内于西班牙中部的两个地点采集。
采用高效液相色谱法结合光电二极管阵列检测器定量测定叶黄素、β-胡萝卜素、新黄质和紫黄质。中值浓度范围（μg g(-1) 可食用湿重）为：β-胡萝卜素 3.39-6.69，叶黄素 5.44-19.13；新黄质 5.17-17.37；紫黄质 2.08-8.93。杠柳的类胡萝卜素含量最高（59.01μg g(-1))，芦笋的含量最低（17.58μg g(-1)) [已更正]。
我们的结果表明，与许多商业上可获得的叶菜相比，这些野生嫩茎是更丰富的类胡萝卜素来源。
