
Elżbieta BielakKrakow University of Economics · Department of Non-food Product Quality and Safety
Elżbieta Bielak
PhD
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11
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Introduction
Publications
Publications (11)
This article presents the results of a study on the current state and evaluation of the Polish tanning industry, focusing on its production characteristics. The research sample included 220 companies that were contacted to gather information about their operations. Some of these companies have been suspended, liquidated, or have changed their busin...
In the leather tanning industry, decision-makers act resolutely to eliminate chrome as a tanning agent due to its negative effect on human health and the natural environment. Considering this, it makes sense to research opportunities to use chrome-free leather as a substitute for chrome-tanned leather. This paper demonstrates research on the mechan...
The article presents research findings on the content of arsenic, cadmium, chromium, copper, lead, and zinc in extracts from leathers, artificial leathers intended for footwear components, and textiles. After extracting the metals using an artificial acidic sweat solution, their contents were quantitatively determined by atomic absorption spectrome...
The prevention of decrease of quality caused by microbial activity in footwear materials entails the use of biocides. However, these substances may pose a hazard to humans and to the natural environment. The paper presents the results of antimicrobial effect investigation for cowhide leather treated with oregano oil. In these studies oil was applie...
This paper analyses information pertaining to notifications of unsafe leather goods submitted to the EU Rapid Exchange of Information System (RAPEX) in the years 2004-2017. The number of leather goods reported in the system has been compared to total number of notifications on dangerous products classified in the category ?Clothing, textiles and fa...
W warunkach narastającej konkurencji, szybko rozwijających się nowoczesnych technologii oraz zmieniających się oczekiwań konsumentów, współpraca pomiędzy światem nauki i praktyki gospodarczej nabiera szczególnie ważnego znaczenia. Można nawet stwierdzić, że jest ona obecnie postrzegana jako niezbędny element rozwoju przedsiębiorstw, a także ośrodkó...
Essential oils introduced into raw materials in the technological process enable leather to gain antimicrobial properties. These properties were examined toward microorganisms potentially pathogenic to humans and causing biodegradation of leather. The article presents an assessment of antimicrobial activity of cowhide lining leathers fatliquored wi...
The hygienic properties of lining leathers can be improved significantly by introducing oregano essential oil into leathers. This is because adding antiseptic oil makes leathers more resistant to microorganisms that are potentially harmful to humans and cause damage to animal leathers. The paper presents the results of tests to check selected mecha...
To prevent losses caused by microbiological decay of leathers during technological processing, biocidal and biostatic chemical agents are used. They are introduced into the material structure at various stages of the tanning process. It has been shown that some of these agents are not neutral to human health and to the environment. Thus> substitute...