Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 177-183 | DOI: 10.11118/actaun201664010177
Effect of Some Essential Oils on the Shelf Life of Whey
- 1 Department of Food Technology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
- 2 Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
- 3 Department of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
The aim of this work was to determine whether the addition of different herbal oils (anise, sweet basil, blue chamomile, clove, true cinnamon, common sage) into whey will extend its shelf life. Changes in pH, titration acidity and microbiological analysis of whey during storage life were chosen as parameters for monitoring of whey shelf life. Based on these analyses possibility of utilization of herbal oils has been confirmed for the purpose of extension of the lifetime of whey. The use of essential oils blue chamomile and common sage did not help to extend the shelf life of fresh whey. The treatment of whey by herbal essential oils anise, sweet basil, clove and cinnamon extend the shelf life up to 21 days without significant changes in pH and titratable acidity. The results of our study show that essential oils could be used to inhibit microbial spoilage whey and to prolong its shelf life.
Keywords: microorganisms, pH, titratable acidity, anise, sweet basil, blue chamomile, common sage, clove, cinnamon
Grants and funding:
This study was supported by the research project NAZV KUS QJ1210302 and the project IGA MENDELU FA TP 9/2013.
Prepublished online: February 29, 2016; Published: April 1, 2016 Show citation
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