Plant extracts as components of edible antimicrobial protective coatings
Natalia Ulbin-Figlewicz,
Anna Zimoch and
Andrzej Jarmoluk
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Natalia Ulbin-Figlewicz: Department of Animal Products Technology and Quality Management, Faculty of Biology and Animal Science,Wrocław University of Environmental and Life Sciences, Wrocław, Poland
Anna Zimoch: Department of Animal Products Technology and Quality Management, Faculty of Biology and Animal Science,Wrocław University of Environmental and Life Sciences, Wrocław, Poland
Andrzej Jarmoluk: Department of Animal Products Technology and Quality Management, Faculty of Biology and Animal Science,Wrocław University of Environmental and Life Sciences, Wrocław, Poland
Czech Journal of Food Sciences, 2013, vol. 31, issue 6, 596-600
Abstract:
The antioxidant and antimicrobial efficiency of edible coating solutions of hydroxypropylmethylcellulose with various plant extracts were formed and determined. Antimicrobial activity of different concentrations (0, 1000, 2000 ppm) of plant extracts such as rosemary, garlic, thyme, clove, and cinnamon against Bacillus subtilis and Pseudomonas fluorescens was analysed using a plate diffusion test. The antioxidant activity was presented as DPPH radical scavenging activity, Ferric Reducing Antioxidant Power (FRAP), and metal chelating ability. The film containing a rosemary extract reduced the growth of Bacillus subtilis. The addition of cinnamon, garlic, and clove extract to the film formulation significantly increased an inhibitory effect on Pseudomonas fluorescens growth. Films prepared with clove and rosemary extracts were characterised by the highest antioxidant activity. DPPH values of these extracts were 0.097μM Trolox/ml and 0.129μM Trolox/ml, respectively.
Keywords: antimicrobial activity; antioxidant activity; edible coatings; hydroxypropylmethylcellulose (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:31:y:2013:i:6:id:68-2013-cjfs
DOI: 10.17221/68/2013-CJFS
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