Valorization of Compounds from Natural Sources: Obtaining, Characterizing and Applicability in Food Processing

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Engineering and Technology".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1469

Special Issue Editors


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Guest Editor
Department of Technology, Universidade Estadual de Maringá, Umuarama, PR, Brazil
Interests: extraction; ultrasound; supercritical; ethanol; vegetable oils; vegetable extracts

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Guest Editor
Faculty of Agricultural Sciences, São Paulo State University (UNESP), Botucatu 3780, SP, Brazil
Interests: food technology; new product development; natural macromolecules; natural active compounds; delivery of active compounds; oral disintegrating films
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Special Issue Information

Dear Colleagues,

Research into new natural sources for obtaining compounds of interest to the food sector is constantly in progress; this Special Issue aims to assist in the dissemination of the results obtained, especially those involving the application of sustainable techniques and/or the possible full exploitation of the available raw material. The study of operational variables aiming at achieving greater productivity and selectivity, as well as research work involving characterization of the material obtained in terms of compound profile, antioxidant potential, physicochemical and technological properties, cytotoxicity, and antibacterial activity, is likely to be well received. Finally, it is our intention to assist in enhancing the application of the products obtained in the most recent fields of scientific interest involving applications in different fields of the food sector, such as the development of products and preservation processes, addressing not only nutritional needs but also promoting health benefits and overall well-being. It is my pleasure to invite you to submit your manuscript and make a significant contribution to this Special Issue.

Dr. Camila Da Silva
Prof. Dr. Vitor Augusto Dos Santos Garcia
Guest Editors

Manuscript Submission Information

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Keywords

  • extraction
  • phenolic acids
  • antioxidant potential
  • antibacterial activity
  • technological properties
  • cytotoxicity
  • sustainability
  • health and well-being
  • food innovation

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Published Papers (1 paper)

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Research

19 pages, 7230 KiB  
Article
Conservation Analysis and Colorimetric Characterization of Betalain Extracts from the Peel of Red Beetroot, Golden Beetroot, and Prickly Pear Applied to Cottage Cheese
by Elizabeth López-Solórzano, Claudia Muro, Yolanda Alvarado Perez, Andrea Y. Guadarrama-Lezama, Elsa Gutiérrez-Cortez and Juan Manuel Urrieta
Foods 2025, 14(2), 228; https://doi.org/10.3390/foods14020228 - 13 Jan 2025
Viewed by 1275
Abstract
The maintenance of betalains and the color of extracts from the peel of red beetroot (RBAC), golden beetroot (YBAC), and purple prickly pear (PBAC) were evaluated, describing the capacity of their use as natural pigments and in the formulation of attractive and functional [...] Read more.
The maintenance of betalains and the color of extracts from the peel of red beetroot (RBAC), golden beetroot (YBAC), and purple prickly pear (PBAC) were evaluated, describing the capacity of their use as natural pigments and in the formulation of attractive and functional foods. Betalain extracts were prepared as juices from frozen and dehydrated peel, adding organic acids and concentrating for water reduction. Extracts were evaluated and applied on cottage cheese, measuring the capacity of betalains retention and pigmentation, during 10 days of storage of closed and opened products. Extracts of RBAC showed the highest betacyanin concentration, followed by YBAC with betaxanthins and PBAC with less betacyanin content. The pH stability for the extracts was pH4–7; RBAC and PBAC were stables at <90 °C, whereas YBAC exposed >125 °C. Extracts were constant during 10 days under oxygen and light exposure; however, YBAC exhibited low resistance in this environment. With cottage cheese, extracts exposed no changes in betalains and color on closed products (10 days of storage at 4 °C). In opened products, PBAC maintained the maximum betalains and color at 90%, PBAC at 75%, and YBAC at 60%. The obtained data contributed to use of agro-industrial residues, betalain extraction and conservation, and their potential use in food coloration and stabilization. Full article
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