COMPARATIVE ANALYSIS OF METHODS FOR DETERMINATION OF STARCH IN SEEDS OF THE AMARANTHACEAE FAMILY

YHUSBY

Abstract

A significant part of the world's agricultural products, which are produced for human and animal nutrition, consists of raw materials containing starch. To develop quality and safety indicators of products, it is necessary to quantify the content of starch grains, confirming their quality and ensuring the absence of possible falsifications. There are various methods for determining starch in plant raw materials. In the present work, the authors propose to carry out an analysis using the example of seeds of the Amaranthaceae family, in particular Amaranthus albus L and Chenopodium quinoa (white and black). The purpose of the study is to compare existing methods for determining starch using the example of seeds of the Amaranthaceae family. The article presents data from the physicochemical study of starch spectrophotometrically in seeds. Hydrolysis of Amaranthus albus L. and Chenopodium quinoa was performed using distilled water (Method 1) and salicylic acid (Method 2) with preliminary calibration plots. The metrological characteristics of the methods indicate their applicability, taking into account the measurement error of not more than 1.4%. Sample starch assay data were visualized using plots. The obtained research data can serve as a theoretical basis for the development of quality indicators from the studied type of plant raw materials.