Juglone Content in Leaf and Green Husk of Five Walnut (Juglans regia L.) Cultivars

  • Sina Niculina COSMULESCU University of Craiova, Faculty of Horticulture, 13 A. I. Cuza Str., 200585, Craiova
  • Ion TRANDAFIR University of Craiova, Faculty of Chemistry, Calea Bucuresti 107 Street, 200529, Craiova
  • Gheorghe ACHIM University of Craiova, Faculty of Horticulture, A.I.Cuza 13 Street, 200585, Craiova
  • Adrian BACIU University of Craiova, Horticulture Faculty, A.I.Cuza, 13, Craiova

Abstract

Juglone (5-hydroxy-1,4-napthoquinone) is a chemical compound released by walnut trees that can be toxic for surrounding plant species. In the present study, juglone was identified in leaves and green husk in five walnut cultivars: Germisara, Jupanesti, Franquette, Vina, Valcor by using high performance liquid chromatography (HPLC-RP). Juglone was found predominant in green husk (average value of cultivars is about 31.308 mg/100 g). Significant differences in contents of identified juglone were observed among cultivars that ranged from 20.56 to 42.78 mg/100g for green husk, and 5.42 to 22.82 mg/100 g for leaves. It was also found that walnut green husk and leaves represent the most important source of walnut phenolics.

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Author Biography

Sina Niculina COSMULESCU, University of Craiova, Faculty of Horticulture, 13 A. I. Cuza Str., 200585, Craiova
Horticulture Faculty, Scientifical Secretary
Published
2011-05-30
How to Cite
COSMULESCU, S. N., TRANDAFIR, I., ACHIM, G., & BACIU, A. (2011). Juglone Content in Leaf and Green Husk of Five Walnut (Juglans regia L.) Cultivars. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 39(1), 237-240. https://doi.org/10.15835/nbha3915728
Section
Research Articles