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Title:Seasonal changes in chemical profile and antioxidant activity of Padina pavonica extracts and their application in the development of bioactive chitosan/PLA bilayer film
Authors:ID Čagalj, Martina (Author)
ID Fras Zemljič, Lidija (Author)
ID Kraševac Glaser, Tjaša (Author)
ID Mežnar, Eva (Author)
ID Sterniša, Meta (Author)
ID Smole Možina, Sonja (Author)
ID Razola-Díaz, María del Carmen (Author)
ID Šimat, Vida (Author)
Files:.pdf Seasonal_Changes_in_Chemical_Profi-Cagalj-2022.pdf (3,28 MB)
MD5: 81E6A252E5D85CE89D3DC0888D891DFD
 
URL https://www.mdpi.com/2304-8158/11/23/3847
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Seaweeds are a potentially sustainable source of natural antioxidants that can be used in the food industry and possibly for the development of new sustainable packaging materials with the ability to extend the shelf-life of foods and reduce oxidation. With this in mind, the seasonal variations in the chemical composition and antioxidant activity of brown seaweed (Padina pavonica) extracts were investigated. The highest total phenolic content (TPC) and antioxidant activity (measured by ferric reducing/antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, and oxygen radical absorbance capacity (ORAC)) were found for P. pavonica June extract. The TPC of 26.69 ± 1.86 mg gallic acid equivalent/g, FRAP of 352.82 ± 15.41 µmole Trolox equivalent (TE)/L, DPPH of 52.51 ± 2.81% inhibition, and ORAC of 76.45 ± 1.47 µmole TE/L were detected. Therefore, this extract was chosen for the development of bioactive PLA bilayer film, along with chitosan. Primary or quaternary chitosan was used as the first layer on polylactic acid (PLA) films. A suspension of chitosan particles with entrapped P. pavonica extract was used as the second layer. X-ray photoelectron spectroscopy confirmed the presence of layers on the material surface. The highest recorded antioxidant activity of the newly developed films was 63.82% inhibition. The developed functional films exhibited antifogging and antioxidant properties, showing the potential for application in the food industry.
Keywords:functional PLA films, seaweed and chitosan bilayer, sustainable natural antioxidants, microwave-assisted extraction
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2022
Year of publishing:2022
Number of pages:str. 1-18, art. 3847
Numbering:Letn. 11, Št. 23
PID:20.500.12556/DKUM-85251 New window
UDC:621.798.1:547.9:664.0
ISSN on article:2304-8158
COBISS.SI-ID:131728131 New window
DOI:10.3390/foods11233847 New window
Publication date in DKUM:23.08.2023
Views:205
Downloads:17
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Foods
Shortened title:Foods
Publisher:MDPI
ISSN:2304-8158
COBISS.SI-ID:512252472 New window

Document is financed by a project

Funder:Drugi - Drug financer ali več financerjev
Funding programme:PRIMA
Project number:1467
Name:BioProMedFood

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:pakiranje živil, aktivna embalaža, hitozan, PLA, antioksidanti, izvlečki iz alg


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