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New Antioxidant Active Packaging Films Based on Yeast Cell Wall and Naphtho-γ-Pyrone Extract
Guillermo D Rezzani1,2, Elodie Choque3,4, Andrés G Salvay1
1Laboratory of Obtention, Modification, Characterization and Evaluation of Materials (LOMCEM), Department of Science and Technology, University of Quilmes, Bernal B1876BXD, Argentina.
Polymers
|May 28, 2022
Summary
New active films from yeast cell walls (YCW-H) with antioxidant naphtho-γ-pyrone (CL-NGP) extract show potential for food packaging. These films offer improved water vapor barrier properties and retain antioxidant capacity.
Area of Science:
- Food Science and Technology
- Materials Science
- Biotechnology
Background:
- Active packaging materials are crucial for extending food shelf life.
- Yeast cell walls (YCW) offer a sustainable source for biomaterials.
- Naphtho-γ-pyrone (CL-NGP) extract from Aspergillus tubingensis exhibits significant antioxidant properties.
Purpose of the Study:
- To develop novel active films using yeast cell wall (YCW-H) incorporated with CL-NGP extract.
- To characterize the functional properties of these bioactive films.
- To evaluate the antioxidant capacity and migration behavior of CL-NGP in food simulants.
Main Methods:
- High-pressure homogenization (HPH) for YCW-H film preparation.
- Incorporation of CL-NGP extract into YCW-H films.
- Comprehensive characterization of film properties (structural, color, thermal, mechanical, hydration, water vapor transport).
- Antioxidant capacity assays and migration studies in food simulants.
Main Results:
- CL-NGP extract demonstrated potent antioxidant activity, maintained after incorporation into YCW-H films.
- Addition of 2% and 5% CL-NGP reduced film hydration, enhancing water vapor barrier properties.
- CL-NGP showed migration in fatty food simulants while retaining its antioxidant efficacy.
Conclusions:
- Bioactive films based on YCW-H and CL-NGP exhibit promising antioxidant and barrier functionalities.
- These developed films have potential applications as active packaging materials in the food industry.
- The study highlights the successful integration of a natural antioxidant into a yeast-derived biopolymer film.
