Lombardo S, Pandino G, Mauromicale G
Di3A - Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via Valdisavoia 5, 95123 Catania, Italy.
Di3A - Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania, via Valdisavoia 5, 95123 Catania, Italy.
Food Res Int. 2015 Oct;76(Pt 3):852-859. doi: 10.1016/j.foodres.2015.07.042. Epub 2015 Jul 29.
Globe artichoke contributes to the healthiness of the Mediterranean diet, but its nutraceutical value in response to its agronomy has not been investigated in any detail to date. Here, the effect of two contrasting fertilizer regimes (one balanced and the other excessive) on the sugar, ascorbic acid and total polyphenol content, the polyphenol profile and the antioxidant activity of the two cultivars 'Apollo' and 'Tema 2000' were monitored in plants grown in three locations in Sicily ('Landolina', 'Iannarello' and 'Zotto'), which contrasted for soil type. The balanced fertilizer regime favored the content of sucrose, inulin, ascorbic acid and polyphenols (in particular that of 1,5-di- and 5-O-caffeoylquinic acid, along with apigenin 7-O-glucuronide). It was also more supportive of a high antioxidant activity. There was a pronounced cultivar and trial location effect, especially in terms of the accumulation of antioxidant compounds. Plants grown at 'Landolina' responded more strongly than at the other two locations to the fertilizer regime with respect to both ascorbic acid and total polyphenol content. The conclusion was that providing a balanced supply of nitrogen/phosphorus/potassium (NPK) via fertilizer application can enhance the nutraceutical value of globe artichoke, although the effect is modulated by both genetic factors and soil type.
洋蓟有助于地中海饮食的健康，但迄今为止，尚未对其农艺学方面的营养保健价值进行详细研究。在此，在西西里岛三个不同土壤类型的地点（“兰多利纳”、“扬纳雷洛”和“佐托”）种植的“阿波罗”和“特马2000”两个品种的植株上，监测了两种对比施肥制度（一种平衡施肥，另一种过量施肥）对糖、抗坏血酸和总多酚含量、多酚谱以及抗氧化活性的影响。平衡施肥制度有利于蔗糖、菊粉、抗坏血酸和多酚（特别是1,5-二咖啡酰奎尼酸和5-O-咖啡酰奎尼酸以及芹菜素7-O-葡萄糖醛酸苷的含量）。它也更有利于高抗氧化活性。存在明显的品种和试验地点效应，尤其是在抗氧化化合物的积累方面。就抗坏血酸和总多酚含量而言，在“兰多利纳”种植的植株比在其他两个地点种植的植株对施肥制度的反应更强烈。结论是，通过施肥提供氮/磷/钾（NPK）的平衡供应可以提高洋蓟的营养保健价值，尽管这种效果受到遗传因素和土壤类型的调节。
