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The plants contain the enzyme myrosinase, which, in the presence of water, cleaves off the glucose group from a glucosinolate. [11] The remaining molecule then quickly converts to an isothiocyanate, a nitrile, or a thiocyanate; these are the active substances that serve as defense for the plant. Glucosinolates are also called mustard oil ...
This is a reactive material which is toxic to many insect predators and its production is triggered when the plant is damaged. [8] This effect has been called the mustard oil bomb. [9] Singrin is also known to be allelopathic. [10] At concentrations typically found in foods, the glucosinolates are not toxic to humans and can be useful flavor ...
The mustard oil bomb, formerly known as the glucosinolate–myrosinase complex, is a chemical herbivory defense system found in members of the Brassicaceae (or cabbage family). The mustard oil bomb requires the activation of a common plant secondary metabolite, glucosinolate , by an enzyme, myrosinase .
The natural role of glucosinolates are as plant defense compounds. The enzyme myrosinase removes the glucose group in glucotropaeolin to give an intermediate which spontaneously rearranges to benzyl isothiocyanate. This is a reactive material which is toxic to many insect predators and its production is triggered when the plant is damaged. [6]
Laboratory studies about this acid have shown damage to the cardiac muscle of laboratory animals in high quantities. It also imparts a bitter taste, and glucosinolates, which made many parts of the plant less nutritious in animal feed. [1] [2] Rapeseed oil from standard cultivars can contain up to 54% erucic acid. [3]
Oxalic acid and oxalates are present in many plants and in significant amounts particularly in rhubarb, tea, spinach, parsley, and purslane. Oxalates bind to calcium, magnesium and iron, preventing their absorption in the human body. [6] Glucosinolates prevent the uptake of iodine, affecting the function of the thyroid and thus are considered ...
Glucobrassicin is a type of glucosinolate that can be found in almost all cruciferous plants, such as cabbages, broccoli, mustards, and woad. As for other glucosinolates, degradation by the enzyme myrosinase is expected to produce an isothiocyanate, indol-3-ylmethylisothiocyanate. However, this specific isothiocyanate is expected to be highly ...
Gluconasturtiin or phenethyl glucosinolate is one of the most widely distributed glucosinolates in the cruciferous vegetables, mainly in the roots, and is probably one of the plant compounds responsible for the natural pest-inhibiting properties of growing crucifers, such as cabbage, mustard or rape, in rotation with other crops.