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2017 Journal of Agroalimentary Processes and Technologies 2017, 23(4)
 
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30 .   The antibacterial properties of seaweed biopolymer based films incorporated with essential oils

Authors: Roxana Puşcăşelu, Sonia Amariei

Volume 23, Issue 3;
Pages: 157-163; 2017
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551



Abstract:

The aim of this study was to obtain seaweed biopolymers based edible films (carrageenan and agar) and incorporated with peppermint, oregano, and thymus essential oils. The most intense antimicrobial activity was observed at films incorporated with peppermint essential oil, and the lowest was noticed at those with addition of oregano essential oil. It was evaluated the initial microbial contamination and after one week, during which time there were handeled and stored in open spaces. There were no yeasts and molds colonies, coliforms or Escherichia Coli, it has been noted total viable count, and the Staphylococcus aureus presence, but their total number decreased after one week. The addition of essential oils did not alter the physical properties, but the films got a pleasant taste and smell. Edible films developed from seaweed, incorporated with essential oils, can be used as food packaging material, being a viable alternative to synthetic conventional packaging.

Keywords: carrageenan, agar, essential oils, peppermint, oregano, thyme.

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