Antioxidant activity of aqueous infusions of low-vitamin rose hips
Journal Title: Modern Innovations, Systems and Technologies - Year 2023, Vol 3, Issue 4
Abstract
Rose hips are used in traditional medicine and industry and, depending on the vitamin content, are divided into low- and high-vitamin. Modern research should be focused on creating maximum product value for the consumer. In this work, the parameters of hydrothermal extraction were adapted to the conditions of home preparation of rosehip tea, and the resulting infusions were tested for antioxidant activity (AOA) using the potentiometric method. It has been shown that an increase in the AOA of infusions is facilitated by a decrease in the particle size of rose hips and an increase in water temperature. In the case of particle sizes of 1,51–2,0 mm, an increase in brewing temperature from 50 to 100 ºС was accompanied by an increase in the AOA of infusions from 205,7 to 662,8 µmol-eq/g, which in percentage terms was characterized by an increase in the AOA value by 222 %. In the case of particle sizes of 0,11–0,6 mm, an increase in brewing temperature from 50 to 100 ºС was accompanied by an increase in the AOA of infusions from 1010,5 to 1357,9 µmol-eq/g, which in percentage terms was characterized by an increase in the AOA value by 34 %. The dependence of the AOA of aqueous infusions of rose hips on the brewing temperature is described by a second-order equation with an approximation coefficient R2 > 0,97.
Authors and Affiliations
A. V. Tarasov, A. V. Tikhomirov
Keywords
Related Articles
- EP ID EP729391
- DOI 10.47813/2782-2818-2023-3-4-0501-0508
- Views 21
- Downloads 0
Brain-computer interfaces: technology overview and modern solutions
The purpose of this study is to provide an overview of the current state of neural interface technology and to compare their various modern implementations with each other, highlighting their advantages and features. The...
Experimental study of residual leather moisture
The work is devoted to the experimental study of the residual moisture content of the leather in the process of roller squeezing. Regression and empirical models of residual leather moisture have been obtained. It has be...
Processing of local wool fiber and technology of obtaining threads of mixed composition
This article demonstrates the use of natural products, such as cotton stalk powder and laundry soap, in the processing of sheep's wool grown in Uzbekistan, which soften the sheep's wool and facilitate its blending with o...
A dynamic model of the transport and logistics chain under conditions of interstate confrontation
In this paper, it is proposed to assess the effectiveness of the logistics support system under given conditions of interstate confrontation with the use of non-military methods of coercive pressure, taking into account...
Contact angles of two-roll modules
The problems of the contact interaction of two-roll modules with the roller pairs depend mainly on the value of the angles of contact since they determine the boundary conditions of these problems. Contact angles and con...