Natural product communications 2015-07-01

Determination of the Juglone Content of Juglans regia Leaves by GC/MS.

Irena Matławska, Wiesława Bylka, Ewa Widy-Tyszkiewicz, Beata Stanisz

文献索引:Nat. Prod. Commun. 10 , 1239-42, (2015)

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摘要

The constituents of walnut (Juglans regia L.) leaves are represented by tannins, phenolics, and naphthoquinones, the characteristic compound being juglone. The content of juglone in the methanolic extract of the leaves determined by the GC/MS method was 9.9 ± 0.2 mg/100 g; small amounts (1.3 ± 0.02 mg/100 g) were recorded in the infusion, whereas in the decoction it was not detected. As some studies indicate toxicity of juglone, only decoctions should be recommended for therapeutic use.


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