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Analysis of institutional authors

Tejedor-Calvo, EvaAuthor

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May 28, 2026
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Extraction of Phenolic-Rich Fractions from Borago officinalis By-Products with Antioxidant and Antimicrobial Activities

Publicated to: Foods. 15 (11): 1917- - 2026-05-28, DOI: 10.3390/foods15111917

Authors:

Tejedor-Calvo, Eva; Orihuela-Jaro, Adrian; Jaime, Laura; de la Fuente-Nieto, Laura; Morales, Diego
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Affiliations

Agrifood Res & Technol Ctr Aragon CITA, Plant Sci Dept, Avda Montanana 930, Zaragoza 50059, Spain - Author
Univ Autonoma Madrid, Fac Sci, Dept Appl Phys Chem, Dept Sect Food Sci, Ave Francisco Tomas & Valiente,N-A, Madrid 28049, Spain - Author
Univ Autonoma Madrid, Food Sci Res Inst CIAL UAM CSIC, Dept Prod & Characterizat Novel Foods, C-Nicolas Cabrera 9, Madrid 28049, Spain - Author
Univ Complutense Madrid, Vet Fac, Dept Sect Galen Pharm & Food Technol, Ave Puerta Hierro,S-N, Madrid 28040, Spain - Author
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Abstract

Borage (Borago officinalis) is an herbaceous plant recognized for its bioactive properties and, particularly, for its culinary use in Mediterranean countries. In gastronomy, the petioles are generally consumed, while a substantial proportion of leaves and other tissues are discarded. These borage by-products (BBPs) constitute a valuable source of phenolic compounds with potential biological activities, including antioxidant and antimicrobial effects. Accordingly, this study evaluated both conventional solid-liquid extractions and an advanced technology, ultrasound-assisted extraction (UAE), to obtain bioactive BBP fractions. Different hydroethanolic mixtures were initially assessed. Although extractions using 25% ethanol did not yield the highest total phenolic content (TPC), they produced extracts with the strongest antioxidant capacity, as reflected by the highest Trolox equivalent antioxidant capacity (TEAC) values against DPPH circle and ABTS circle+ (24 and 117 & micro;mol/g). Response surface methodology (RSM) was employed to establish the most suitable extraction time and temperature (78 min, 70 degrees C) to maximize extraction yield, TPC, and radical-scavenging activity. In contrast, UAE enabled the use of milder conditions (45 min, 25 degrees C) while still achieving comparable TPC and TEAC values (15%, 29 and 246 & micro;mol/g). Phenolic characterization of selected extracts revealed the presence of nine compounds, with epigallocatechin and rosmarinic acid identified as the major constituents. These extracts exhibited antibacterial activity against Staphylococcus aureus and Escherichia coli, whereas no inhibitory effect was observed against Listeria innocua. Overall, these results highlight the bioactive potential of BBP extracts and encourage further investigations into their functional properties, as well as sensory and consumer acceptance studies.
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Keywords

Borago officinalisCompuestos fenólicosPropiedades antimicrobianasPropiedades antioxidantesSubproductosUltrasonidos

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Foods 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, 2026, it was in position 39/187, thus managing to position itself as a Q1 (Primer Cuartil), in the category Food Science & Technology.

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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 2026-11-15:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 4.
  • 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: 12 (PlumX).

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

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

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.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10532/8305
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Leadership analysis of institutional authors

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 (Tejedor Calvo, Eva) .

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Awards linked to the item

This research was funded by the Spanish Government, Project: PID2019-110183RB-C22/MCIN/AEI/10.13039/501100011033.
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