Another compound, sinigrin
, is an antioxidant that fights free radicals that could compromise immune system function and even lead to cancer.
(Brassicaceae) were investigated six glucosinolates were identified for the first time in this plant; namely, sinigrin
, progoitrin, glucoiberin, 3-(methylcarbonyl)propyl glucosinolate, glucocheirolin and glucoerysolin by Al-Gendy et al.
Rapeseed meal used in this study contained progoitrin (0.38 [+ or -]0.17 [micro]mol/g), sinigrin
(10.28[+ or -]1.54 [micro]mol/g) and gluconapin (36.64[+ or -] 6.89 [micro]mol/g), resulting in 47.30[+ or -]8.58 [micro]mol/g of total Gls on a dry matter (DM) basis (Table 1).
Spencer (1996) studied oviposition on sinigrin-treated substrates with and without alkane and found that the increase in sinigrin
content led to an increase in the number of P.
Calibration curves for glucotropaeolin and sinigrin
, with 7 points each, were established in the concentration range of 1 to 600 to [micro]moles x [mL.sup.-1].
Mustard's alluring pungency only develops when cold water is blended with the ground seed and a reaction occurs between the enzyme myrosin and the glycoside sinigrin
, resulting in a sulfurous compound captured in the highly volatile (and hot-tasting) seed oil.
This is the volatile mustard oil formed by enzymatic fission of sinigrin
; horseradish root may serve equally well (Kjaer 1960).
Two milliliters of boiling methanol solution (70% v/v) were added and 200 [micro]l of 20 mmol/internal standard solution of sinigrin
(Indofine Chemical Company, USA) were added immediately.
Glucosinolates are responsible for the characteristic hot taste of horseradish, wasabi, and mustard, (9) and two of the most abundant compounds in the horseradish root are sinigrin
stated that Pawpaw (Carica papaya) seeds yield 660-760mg (bactericidal a glycone of glucotropaeolin benzyl isothiocyanate), a glycoside, sinigrin
, the enzyme myrosin, and carpasemine.
The black mustard produces most of its defense chemicals in the form of an amino acid called sinigrin
. The researchers wanted to see whether the mustard's neighbors would affect the evolutionary benefit of a plant's sinigrin