CHEMICAL COMPOSITION OF COTYLEDONS AND HUSKS OF SILYBUM MARIANUM
UDC 577.19:543.645.9:543.641
Abstract
The work is devoted to determining the distribution of biologically active substances in the husk and cotyledons of milk thistle fruits growing in natural conditions in the vicinity of the village of Novolakskoye, Kumtorkalinsky district, Republic of Dagestan. The content of flavolignans, fatty oils, proteins, carbohydrates, tannins and organic acids was determined. It was found that fatty oil and proteins accumulate in cotyledons, and carbohydrates, flavolignans and tannins in the husk. The content of fatty acids in the oil of fruits, cotyledons and husks was determined by gas chromatography with mass spectrometric detection. The fatty acid composition of oils obtained from fruits, cotyledons and husks has no significant differences. The mineral composition of the samples was determined by atomic adsorption method using the flame atomization mode. Of the macronutrients, only calcium (9685 mg/kg) accumulates in the husk, magnesium (2714 mg/kg) and potassium (6958 mg/kg) are concentrated in the cotyledons. Iron (68.8 mg/kg), copper (35.5 mg/kg) and zinc (93.2 mg/kg) accumulate from trace elements in cotyledons, strontium (55.9 mg/kg) and manganese (20.9 mg/kg) in husks.
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