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Ovlivnění stability šťávy zeleného ječmene pomocí obsahových látek z vybraných rostlinných druhů
 Juříčková, Jana
The thesis „Affecting the stability of the juice of green barley using the content substances of selected plant species“ is usage of green barley substances, the green barley juice production and its stabilization with various plant extracts. In the theoretical part the aim is to define young green barley, important substances in the plant and how to obtain them, which plant extracts and preservation methods are used in barley juice production. The practical part of this thesis is about cultivating green barley in laboratory conditions, its processing with plant extracts addition and the effeciency monitoring for 3 weeks. Plant extracts have antimicrobial activity against various microorganism, and so the extracts are suitable for juice preservation. Moreover the extracts help to preserve the nutrients in the juice.A microbiological risk assessment was performed on a samples with the plant extracts and a microbiological evaluation was done in a stastistical analysis software. The result from the microbiological evaluation the most effective against microorganisms was Silybum m. extract.
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