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Analysis of institutional authors

Gonzalez-Martinez, CheloAuthorChiralt, AmparoCorresponding Author

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September 4, 2025
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Biodegradable Antioxidant Composites with Almond Skin Powder

Publicated to: Polymers. 17 (16): 2201- - 2025-08-12 17(16), DOI: 10.3390/polym17162201

Authors:

Gil-Guillen, Irene; Goncalves, Idalina; Ferreira, Paula; Gonzalez-Martinez, Chelo; Chiralt, Amparo
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Affiliations

Univ Aveiro, CICECO Aveiro Inst Mat, Dept Mat & Ceram Engn, P-3810193 Aveiro, Portugal - Author
Univ Politecn Valencia, Inst Food Engn FoodUPV, Valencia 46022, Spain - Author

Abstract

Almond skin (AS) from industrial almond peeling is considered an agri-food waste with adequate composition to obtain composite films for food packaging due to its richness in polysaccharides, proteins, and phenolic compounds. Composite films based on amorphous polylactic acid (PLA) or partially acetylated polyvinilalcohol (PVA) were obtained by melt blending and compression moulding, incorporating different ratios of defatted AS powder (0, 5, 10, and 15 wt.%). The filler was better integrated in the polar PVA matrix, where more interactions were detected with the filler compounds, affecting glass transition and crystallization of the polymer. The AS particles provided the films with the characteristic colour of the powder and strong UV light-blocking effect, while improving the oxygen barrier capacity of both polymeric matrices (24% in PLA with 15% AS and 42% in PVA with 10% AS). The water vapour permeability increased in PLA (by 192% at 15% AS), but decreased in PVA films, especially with low AS content (by 19% with 5% particles). The filler also provided the PLA and PVA films with antioxidant properties due to its phenolic richness, improving the oxygen barrier capacity of the materials and delaying the unsaturated oil oxidation. This was reflected in the lower peroxide and conjugated dienes and trienes values of the sunflower oil packaged in single-dose bags of the different materials. The high oxygen barrier capacity of the PVA bags mainly controlled the preservation of the oil, which made the effect of the antioxidant AS powder less noticeable.
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Keywords

Almond skinAntioxidant propertieAntioxidant propertiesCelluloseComposite filmsDegradatioPlaPva

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Polymers due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 19/94, thus managing to position itself as a Q1 (Primer Cuartil), in the category Polymer Science.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-06:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: Portugal.

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Gil-Guillén, Irene) and Last Author (Chiralt Boix, Mª Amparo).

    the authors responsible for correspondence tasks have been Gil-Guillén, Irene and Chiralt Boix, Mª Amparo.

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    Awards linked to the item

    Funds Next Generation to Comunitat Valenciana (GVANEXT) PRTR-C17.I1, Ministerio de Ciencia, Innovacion y Universidades: AGROALNEXT/2022/026; Generalitat Valenciana: CIPROM/2021/071.
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