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Home → Publications → Forest Nursery Notes → 2009 Winter Forest Nursery Notes → 2009 Winter Forest Nursery Notes - New Nursery Literature → Isothiocyanate Concentration in Kohlrabi (Brassica Oleracea L. var. Gongylodes) Plants as Influeneced by Sulfur and Nitrogen Supply

Isothiocyanate Concentration in Kohlrabi (Brassica Oleracea L. var. Gongylodes) Plants as Influeneced by Sulfur and Nitrogen Supply

Gerendas, J., Breuning, S., Stahl, T., Mersch-Sundermann, V., and Muhling, K. H. Journal of Agricultural and Food Chemistry 56:8334-8342. 2008.

Glucosinolates (GSss) represent bioactive compounds of Brassica vegetables whose health-promoting effects merely stem from their breakdown products, particularly the isothiocyanates (ITCs), released after hydrolysis of GSs by myrosinase. GSs are occasionally discussed as transient S reservoirs, but little is known concerning the interactive effect of S and N supply on lTC concentrations. Therefore, kohlrabi plants were grown in a pot experiment with varied S (0.00, 0.05, and 0.20 g pot- 1 ) and N (1, 2, and 4 g pot- 1 ) supplies. KEYWORDS: Fertilization; vegetable quality; sulforaphane; glucosinolates; myrosinase; p-glucosidase; N/S ratio; allyl isothiocyanate; methylthiobutyl isothiocyanate; phenylethyl isothiocyanate


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Author(s): J. Gerendas, S. Breuning, T. Stahl, V. Mersch-Sundermann, K. H. Muhling

Section: Fertilization and Nutrition

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