The quantitative content of the main groups of biologically active substances in the bay laurel raw materiaL

Abstract

The study of the chemical composition of the bay laurel raw material has shown that the plant raw material contains such groups of biologically active substances (BAS) as carbohydrates, fatty and amino acids, phenolic compounds revealing a wide spectrum of the biological activity. The data concerning the chemical composition of the bay laurel raw material is not enough described in the literature sources. The content of the main BAS in different samples of bay laurel shoots and leaves has been determined. The content of the total amount of organic acids, the total amount of oxidizable phenols, the total amount of hydroxycinnamic acids and the total amount of flavonoids in the bay laurel leaves samples are slightly higher. The content of the total amount of organic acids in shoots is not less than 1.7%, in leaves-not less than 1.9%. The content of the total amount of oxidizable phenols in both types of the raw material is not less than 4.5%, the total amount of hydroxycinnamic acids-not less than 1.3%, the total amount of flavonoids-not less than 0.8%. The standardization parameters for the bay laurel raw material have been determined on the basis of the research conducted. The results obtained will be used for developing the project of quality control methods "Lauri Cormus".

Allelopathic Actions of Laurus nobilis on Seed Germination and Growth of Some Crop and Weed Species

“…Previous investigations were found to mention the effect of phenolic compounds on seed germination and seedling growth of plants that have a contribution with growth and its hormonal activities [18,19]. The findings are in accordance with Yilmaz et al (2013) who isolated certain phenolic compounds from shoots of bay laurel plant extracts which compounds play crucial role in biological weed management [17,20,21]. The results regarding the allelopathic properties of the concentrations (0%, %2.5, %5, %7.5, and %10) of L. nobilis shoot extracts on seed germination and growth parameters of rapeseed (B. napus), wheat (T. aestivum), mung bean (V. radiata) and corn (Z. mays) illustrated that the negative influence can be increased by increasing of concentration of the L. nobilis shoot aqueous extract.…”

Phenolic compounds of laurus nobilis (review)

“…Изучение химического состава двух образцов листьев и побегов лавра благородного, собранных в ноябре 2013 г. в Крыму в окрестностях г. Алушта (1) и пос. Рыбачье (2) показало, что они содержат углеводы, жирные кислоты, аминокислоты и фенольные вещества [60]. Авторами исследования определено содержание основных групп БАВ, в том числе фенольных соединений, в разных образцах побегов и листьев лавра благородного (таблица 6).…”

Research of Phenolic Compounds of Ruta Graveolens L. And Stellaria Media (L.) Vill

“…0% of solvent B. The scan time 0.6 s, the detection range 190-400 nm, the wavelengths -280, 255 nm [12][13][14][15][16][17][18].…”