Glucosinolate vegetable

Functional properties of canola protein products can be improved by succinylation (130,131). Controlled acetylation can reduce undesirable phenoHc constituents as well (132). However, antinutrients in canola and other vegetable protein products such as glucosinolates, phytic acid, and phenoHc compounds have severely limited food appHcations of these products. 

KUSHAD M M, BROWN A F and KURiLicH A c (1999) Variation of glucosinolates in vegetable crops of brassica oleracea , JAgric Food Chem, 47 1541-8. 

SHAPIRO T A, FAHEY J W, WADE K L, STEPHENSON K K and TALALAY P (1998) HlUnan metabolism and excretion of cancer chemoprotective glucosinolates and isothiocyanates of cruciferous vegetables . Cancer Epidemiol Biomarkers Prev, 7 1091-1100. 

NHO c w and JEFFERY E (2001) The synergistic upregulation of phase II detoxification enzymes by glucosinolate breakdown products in cruciferous vegetables , Toxicol Appl Pharmacol, 174 146-52. 

NASTRUZZI C, CORTESI R, ESPOSITO E, MENEGATTI E, LEONI O, lORI R and PALMIERI S (2000) In vitro antiproliferative activity of isothiocyanates and nitriles generated hy myrosinase-mediated hydrolysis of glucosinolates from seeds of cruciferous vegetables , JAgric Food Chem, 48 3572-5. 

Plumb GW, Lamer N, Chambers SJ, Wanigatunga S, Heany RK, Plumb JA, Aruoma OI, Halhwell B, Miller NJ and Wilhamson G. 1996a. Are whole extracts and purified glucosinolates from cruciferous vegetables antioxidants Free Rad Res 25 75-86. 

Rungapamestry V, Duncan AJ, Fuller Z and Ratcliffe B. 2007. Effect of cooking Brassica vegetables on the subsequent hydrolysis and metabolic fate of glucosinolates. Proc Nutr Soc 66(1) 69-81. 

Carlson DG, Daxenbichler ME, Van Etten CH, et al. 1987. Glucosinolates in Cruciferous vegetables broccoli, sprouts, cauliflower, collards, kale, mustard greens, and kohlrabi. J Amer Soc Hort Sci 112(1) 173-178. 

Skutlarek D, Faerber H, lippert F, Ulbrich A, Wawrzun A, Buening-Pfaue H (2004) Determination of glucosinolate profiles in Chinese vegetables by precursor ion scan and multiple reaction monitoring scan mode (LC-MS/MS). Eur Food Res Technol 219 643-649... 

A related glucosinolate glucoraphanin is found in broccoli, and is associated with beneficial medicinal properties of this vegetable. This is hydrolysed to the isothiocyanate sulforaphane, which is believed to induce carcinogen-detoxifying enzyme systems. 

Isothiocyanates are sulphur- and nitrogen-containing phytochemicals with the general formula R-NSC, e.g. phenylethyl isothiocyanate 199, 3-phenylpropyl isothiocyanate 200 and benzyl isothiocyanate 201 (Structure 4.58). Isothiocyanates occur naturally as glucosinolate conjugates mainly in cruciferous vegetables. Isothiocyanates are also responsible for the typical flavour of these vegetables [1-4,21-23, 25, 54]. 

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