The investigation total content of free organic acids in the blackberry fresh fruit

Abstract

Introduction. Organic acids are compounds of an aliphatic or aromatic series, which are character- ized by the presence in the molecule of one or more carboxyl groups. This class of compounds is widespread in the plant world. Organic acids are contained in plants mainly in the form of salts, esters, dimers, as well as in a free state, forming buffer systems in the plant cell sap. Organic acids have a wide range of biological effects on the human body: in addition to vitamin properties, they have a choleretic effect that normalizes the activity of the digestive system. Organic acids regulate the se- cretion of bile and pancreatic juice, improve appetite; have bactericidal properties and reduce the putrefactive processes in the body. So, the aim of the study was determine the total content of organic acids in fresh blackberry fruits.