Hydration and mechanical solubilization in the extraction of hydrocoloids from the leaves of malva sylvestris

Abstract

The objective of the work was to determine the hydration and solubilization conditions by mechanical expression to extract hydrocolloids with maximum yield (% p/p) from Malva sylvestris leaves.Solvent ratio effects were established for hydrationsolute (W/S) of 15,20 and 25 g water / g powder sheetsand maceration times of 30,60 and 90min using as a methodology the design of response surface in factorial arrangement 32and for solubilization by hammers with pressure of 53db at speeds of 424,508 and 592mov / min for times of 60,120 and 180s.The results showed a coefficient of determination of 96.5%, a second order model that was adjusted to the response studied.The conditions to extract hydrocolloids with higher yield (19.21%) in hydration was the W/S ratio of 25 for 30min and for solubilization of 592mov/min for 180s.