Abstract The aim of this study was to determine the effect of bioactive compounds of natural origin on the quality of sausages. Four variants of sausages were manufactured: a control variant (C) and three variants with the addition of catuaba, galangal, roseroot, maca, guarana and polyfloral honey (E1, E2, E3). The pH values, colour and chemical parameters (total phenolic content, total antioxidant activity and anti-inflamantory activity) of the meat batters and finished products were determined. Additionally, texture and sensory analyses of the sausages were performed. It was found that regardless of slightly lower acceptability, sausages with bioactive components were characterised by increased antioxidant properties, higher total phenol values and higher anti-inflamantory activity. The best results were obtained when the highest level of bioactive compounds was used (1.734% of catuaba bark, 0.022% of ground great galangal root, 0.458% of ground roseroot, 0.614% of maca root extract (4:1), 0.600% of ground guarana and 1.146% of polyfloral honey).

Abstract Electronic noses are devices able to characterize and differentiate the aroma profiles of various food, especially meat and meat products. During recent years e-noses have been widely used in food analysis and proved to provide a fast, simple, non-expensive and non-destructive method of food assessment and quality control. The aim of this study is to summarize the most important features of this analytic tool and to present basic fields and typical areas of e-nose use as well as most commonly used sensor types and patterns for e-nose design. Prospects for the future development of this technique are presented. Methods and research results presented in this manuscript may be a guideline for practical e-nose use.