Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry

Olive oil has recognized health benefits but lacks structural resilience to act in a similar fashion as do the typically used triglycerides (TAGs) when applied in food manufacturing. Therefore, olive oil structuring is critical to widening its use as a healthier alternative in spreadable products. F...

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Main Authors: Pedro M. Silva, Artur J. Martins, Luiz H. Fasolin, António A. Vicente
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Gels
Subjects:
Online Access:https://www.mdpi.com/2310-2861/7/1/12
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author Pedro M. Silva
Artur J. Martins
Luiz H. Fasolin
António A. Vicente
author_facet Pedro M. Silva
Artur J. Martins
Luiz H. Fasolin
António A. Vicente
author_sort Pedro M. Silva
collection DOAJ
description Olive oil has recognized health benefits but lacks structural resilience to act in a similar fashion as do the typically used triglycerides (TAGs) when applied in food manufacturing. Therefore, olive oil structuring is critical to widening its use as a healthier alternative in spreadable products. Foreseeing the development of an application for the food industry, three types of natural waxes were used as organogelators, generating olive oil organogels with distinct properties. Retail-simulated storage conditions were used to mimic real-life industrial and commercial use. Organogel systems were evaluated according to their oxidation stability and textural and rheological properties. Textural and rheological parameters increased in response to increasing gelator concentration, while oxidation values (below 1.5 meq O<sub>2</sub>·kg<sup>−1</sup>) remained within legal limits. Organogels displayed similar textural properties to those of commercially available spreadable products, while displaying a low critical gelation concentration. In short, it was shown that tailoring the physicochemical properties of organogels towards specific applications is possible. The produced organogels showed similar properties to the ones of commercially available spreadable products, revealing favourable oxidative profiles. Therefore, an industrial application can be easily foreseen, building on the natural characteristics of olive oil as a healthier alternative to current spreadable products.
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spelling doaj.art-108f60cca5f641c2b5178d41edf9e1fb2023-12-03T15:05:19ZengMDPI AGGels2310-28612021-01-01711210.3390/gels7010012Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food IndustryPedro M. Silva0Artur J. Martins1Luiz H. Fasolin2António A. Vicente3Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, PortugalInternational Iberian Nanotechnology Laboratory, Food Processing and Nutrition Group, Av. Mestre José Veiga s/n, 4715-330 Braga, PortugalDepartment of Food Engineering, School of Food Engineering, University of Campinas—UNICAMP, 13083-862 Campinas, SP, BrazilCentre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, PortugalOlive oil has recognized health benefits but lacks structural resilience to act in a similar fashion as do the typically used triglycerides (TAGs) when applied in food manufacturing. Therefore, olive oil structuring is critical to widening its use as a healthier alternative in spreadable products. Foreseeing the development of an application for the food industry, three types of natural waxes were used as organogelators, generating olive oil organogels with distinct properties. Retail-simulated storage conditions were used to mimic real-life industrial and commercial use. Organogel systems were evaluated according to their oxidation stability and textural and rheological properties. Textural and rheological parameters increased in response to increasing gelator concentration, while oxidation values (below 1.5 meq O<sub>2</sub>·kg<sup>−1</sup>) remained within legal limits. Organogels displayed similar textural properties to those of commercially available spreadable products, while displaying a low critical gelation concentration. In short, it was shown that tailoring the physicochemical properties of organogels towards specific applications is possible. The produced organogels showed similar properties to the ones of commercially available spreadable products, revealing favourable oxidative profiles. Therefore, an industrial application can be easily foreseen, building on the natural characteristics of olive oil as a healthier alternative to current spreadable products.https://www.mdpi.com/2310-2861/7/1/12organogelgelationtexturerheologyolive oilnatural waxes
spellingShingle Pedro M. Silva
Artur J. Martins
Luiz H. Fasolin
António A. Vicente
Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
Gels
organogel
gelation
texture
rheology
olive oil
natural waxes
title Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
title_full Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
title_fullStr Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
title_full_unstemmed Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
title_short Modulation and Characterization of Wax-Based Olive Oil Organogels in View of Their Application in the Food Industry
title_sort modulation and characterization of wax based olive oil organogels in view of their application in the food industry
topic organogel
gelation
texture
rheology
olive oil
natural waxes
url https://www.mdpi.com/2310-2861/7/1/12
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AT luizhfasolin modulationandcharacterizationofwaxbasedoliveoilorganogelsinviewoftheirapplicationinthefoodindustry
AT antonioavicente modulationandcharacterizationofwaxbasedoliveoilorganogelsinviewoftheirapplicationinthefoodindustry