Determination of Phytotechnological Parameters of the Dense Extract from Peach (<i>Persica vulgaris</i>) Leaves

Introduction. Leaves of peach ( Persica vulgaris ), containing a large amount biologically active substances, including flavonoids, are considered as promising plant source for producing extraction preparations. Aim. The purpose the study: to establish influence phytotechnological parameters efficiency isolation complex substances from leaves. Materials and methods. object study was samples dried leaves cultivated tree – Mill. Rosaceae family ) collected during growing season (at end August). main technological vegetable raw materials were studied: average particle size fractional composition, volume characteristics specific, bulk mass, porosity, porosity free material layer, аs well absorption coefficient extractant. Results discussion. obtained values composition indicate expediency using maceration method in extraction. Experimental studies carried out select optimal modes flavonoids (extractant, temperature, duration, degree grinding, hydromodule), which ensure high output BAS into extract. Conclusion. presents analysis leaves, rational is justified at heating with periodic stirring, conditions determined; providing maximum yield substances: temperature 70 °С 40 min, extractant alcohol, ethyl solution %, grinding 2 mm, : ratio (1 10).