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Fernando A. De Villena, Vincent A. Fritz, Jerry D. Cohen and William D. Hutchison

( Talalay and Fahey, 2001 ; Wargovich, 2000 ). A group of secondary compounds, called glucosinolates, is widely present in crucifers. On cellular damage or disruption, hydrolysis of glucosinolates, through the enzyme myrosinase, produces isothiocyanates

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Irwin L. Goldman

States, and Europe suggest that risk of lung, breast, colon, and prostate cancer may be reduced with consumption of vegetables from the Brassicaceae ( Juge et al., 2007 ). The suspected mechanism for this risk reduction is the action of isothiocyanates

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Bhimanagouda S. Patil, G.K. Jayaprakasha and Amit Vikram

unique group of compounds, glucosinolates, and isothiocyanates ( Figs. 4C and 4E–J ) were reported from the drumstick plant ( Bennett et al., 2003 ; Fahey et al., 2001 ). In addition, a rich diversity of other secondary metabolites such as moringine and

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Virender Kumar, Daniel C. Brainard and Robin R. Bellinder

further hydrolyzed by the enzyme myrosinase to form isothiocyanates (ITCs), compounds toxic to a variety of soilborne plant pests, including weeds ( Brown and Morra, 1997 ; Morra and Kirkegaard, 2002 ). Reports have described the role of ITC in inhibition

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Steven F. Vaughn, Mark A. Berhow and Brent Tisserat

the secondary metabolite glucolimanthin (3-methoxybenzyl glucosinolate) ( Daxenbichler and VanEtten, 1974 ). Meadowfoam seeds are heated during oil extraction to prevent the enzymatic formation of 3-methoxybenzyl isothiocyanate, which has high

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Jacob S. Bravo, Thomas Okada Green, James R. Crum, John N. Rogers III, Sasha Kravchenko and Charles A. Silcox

sold in a fine granular formulation and once applied and incorporated, turns into methyl isothiocyanate gas, killing all existing tissues as well as the seed within the soil ( McClellan, 2009 ). Early studies have shown that when combined with either

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Xi Wang, Genhua Niu, Mengmeng Gu, Paul A. Baumann and Joseph Masabni

− ) production from 4-hydroxybenzyl glucosinolate contained in Sinapis alba seed meal J. Agr. Food Chem. 53 8650 8654 Borek, V. Morra, M.J. Brown, P.D. McCaffrey, J.P. 1995 Transformation of allyl isothiocyanate and allylnitrile in soil J. Agr. Food Chem. 43

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Victoria J. Ackroyd and Mathieu Ngouajio

isothiocyanates (ITCs) ( Kirkegaard and Sarwar, 1998 ). Some of these glucosinolate by-products are water-soluble, while some are highly volatile ( Brown and Morra, 1996 ). Other compounds from glucosinolate hydrolysis that may be allelopathic are organic cyanides

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Susan L.F. Meyer, Inga A. Zasada, Shannon M. Rupprecht, Mark J. VanGessel, Cerruti R.R. Hooks, Matthew J. Morra and Kathryne L. Everts

degrade to ionic thiocyanate (SCN − ) and other isothiocyanates; sinigrin degrades to form isothiocyanates such as allyl isothiocyanate (ITC), but not SCN − ( Borek and Morra, 2005 ; Buskov et al., 2002 ; Donkin et al., 1995 ; Hansson et al., 2008

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Vincent A. Fritz, Veronica L. Justen, Ann M. Bode, Todd Schuster and Min Wang

compounds with aliphatic, aromatic, or indolic groups depending on which modified amino acid they contain. Upon hydrolysis with myrosinase, a β-thioglucosidase, GSLs yield bioactive compounds, including volatile isothiocyanates. GSLs and their subsequent