Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Dec:194:108966.
doi: 10.1016/j.meatsci.2022.108966. Epub 2022 Sep 6.

Active edible films based on green tea extract and gelatin for coating of fresh sausage

Daniele Hamann  1 , Bruna Maria Saorin Puton  1 , Thais Comin  1 , Rosicler Colet  1 , Eunice Valduga  1 , Jamile Zeni  1 , Juliana Steffens  1 , Alexander Junges  1 , Geciane Toniazzo Backes  2 , Rogério Luis Cansian  1
Affiliations

Active edible films based on green tea extract and gelatin for coating of fresh sausage

Daniele Hamann et al. Meat Sci. 2022 Dec.

Abstract

The objective of this work was to develop, characterize and evaluate the application of active edible films based on gelatin and green tea extract in coating of fresh sausages. The green tea extract showed IC50 of 0.088 mg/mL and minimum inhibitory concentrations of 0.05 mg/mL for Listeria monocytogenes, 0.025 mg/mL for Staphylococcus aureus, 0.04 mg/mL for Escherichia coli, and >1.0 mg/mL for Salmonella enterica serovar Choleraesuis. The formulation with 15% (w/v) of gelatin and 30% (w/w) of glycerol showed better adhesion and appearance in the coating of the product. When using 1.0% of green tea extract, the lowest IC50, was obtained and the antioxidant activity was maintained for 35 days. There was a more accentuated decrease in pH and an increase in acidity and peroxide index in fresh sausages without film compared to those coated with the active film (1.0% of green tea extract) during storage. In addition, it was found that the use of active gelatin film (1.0% of green tea extract) kept the TBARS indexes of fresh sausage samples lower than the standard (without coating) and of films containing only gelatin, after 48 days of storage.

Keywords: Active films; Camellia sinensis; Mechanic properties; Solubility.

PubMed Disclaimer

Conflict of interest statement

Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Daniele Hamann, Bruna Maria Saorin Puton, Thais Comin, Rosicler Colet, Eunice Valduga, Jamile Zeni, Juliana Steffens, Geciane Toniazzo Backes, Rogério Luis Cansian.

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

LinkOut - more resources

  NODES
twitter 2