Tinkturenpresse

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Brassica nigra (L.) Koch - syn.Sinapis nigra - Brassicaceae - black mustard, Schwarzer Senf

Annual herb, native to the Mediterranean, Europe, West Asia, naturalized and cultivated elsewhere; seeds small, hard, dark brown to black.

Allyl isothiocyanate with its strong pungent mustard smell is the product of enzymatic hydrolysis of sinigrin (2-propenylglucosinolate).
„The most predominant constituent of Brassica nigra is allyl isothiocyanate, which accounts for more than 90% of the total volatile compounds.“
[Comparison of simultaneous distillation extraction and solid-phase microextraction for the determination of volatile flavor components., Cai, J., Liu, B., Su, Q., Journal of Chromatography A, Vol.930(1), 2001, 1-7]

Sinigrin concentration in B. nigra seeds decrease from seedling to early flowering stage, and increase in the late flowering stage and then decrease again during seed maturation.
[Developmental changes of sinigrin and glucoraphanin in three Brassica species (Brassica nigra, Brassica juncea and Brassica oleracea var. italica).,Rangkadilok, N., Nicolas, M.E., Bennett, R.N., Premier, R.R., Eagling, D.R., Taylor, P.W., Scientia Horticulturae, Vol.96(1), 2002, 11-26]

Köhler, F.E., Medizinal Pflanzen, vol. 1: t. 14 (1887) [W. Müller]
http://www.plantillustrations.org/species.php?id_species=156125