Juglone Content in Leaf and Green Husk of Five Walnut (Juglans regia L.) Cultivars
Sina Cosmulescu, Ion Trandafir, Gheorghe Achim, Adrian Baciu
Notulae Botanicae Horti Agrobotanici Cluj-Napoca
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.
Extracted Claims
2 claims extracted from this paper into the knowledge graph
walnut green husk and leaves represent the most important source of walnut phenolics
“It was also found that walnut green husk and leaves represent the most important source of walnut phenolics.”
juglone is found in green husk and leaves of walnut cultivars
“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 f...”