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Stefanidis S, Ordoudi SA, Nenadis N, Pyrka I. Improving the functionality of virgin and cold-pressed edible vegetable oils: Oxidative stability, sensory acceptability and safety challenges. Food Res Int 2023; 174:113599. [PMID: 37986461 DOI: 10.1016/j.foodres.2023.113599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/08/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
In recent years, there has been a growing demand for minimally processed foods that offer health benefits and premium sensory characteristics. This trend has led to increased consumption of virgin (VOs) and cold-pressed (CPOs) oils, which are rich sources of bioactive substances. To meet consumer needs for new oil products conferring multi-functional properties over a longer storage period, the scientific community has been revisiting traditional enrichment practices while exploring novel fortification technologies. In the last four years, the interest has been growing faster; an ascending number of annually published studies are about the addition of different plant materials, agri-food by-products, or wastes (intact or extracts) to VOs and CPOs using traditional or innovative fortification processes. Considering this trend, the present review aims to provide an overview and summarize the key findings from relevant papers that were retrieved from extensively searched databases. Our meta-analysis focuses on exposing the most recent trends regarding the exploitation of VOs and CPOs as substrates, the fortification agents and their form of use, as well as the fortification technologies employed. The review critically discusses possible health claim and labeling issues and highlights some chemical and microbial safety concerns along with authenticity issues and gaps in quality specifications that manufacturers have yet to address. All these aspects are examined from the perspective of developing new oil products with well-balanced techno-, senso- and bio-functional characteristics.
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Affiliation(s)
- Stavros Stefanidis
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Stella A Ordoudi
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Nikolaos Nenadis
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Ioanna Pyrka
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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2
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Kacalova T, Jarosova A, Cwikova O, Franke G, Soumarova T. The effect of form and method of flavoring on microbiota of olive oil. Food Sci Nutr 2023; 11:7364-7372. [PMID: 37970410 PMCID: PMC10630791 DOI: 10.1002/fsn3.3664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/20/2023] [Accepted: 08/24/2023] [Indexed: 11/17/2023] Open
Abstract
Flavoring olive oil is an increasing trend in olive oil processing. Growing consumer interest in flavored olive oils by natural material brings the need to evaluate the key limiting factors which is its microbiological stability. The present research compares the microbiological quality of olive oil flavored by 3 flavors (rosemary, garlic, and lemon), prepared by 3 methods to determine changes during storage. The comprehensive microbiological analyses (total number of microorganisms [TCM], anaerobic sporulates, yeasts, molds, bacteria of the family Enterobacteriaceae, bacteria of the genus Salmonella spp., Clostridium botulinum, and lactic acid bacteria) were conducted during 12 months of storage. The best results in TCM were observed in the oil flavored by fresh garlic (0.24 log CFU/mL). The highest counts of anaerobic sporulates were detected in the dried rosemary olive oil (1.10 log CFU/mL). The flavoring materials have significantly higher counts of microorganism than flavored oils (p < .05). The obtained results demonstrated that microorganisms are capable to survive in flavored olive oil and the method of flavoring can affect their growth in a selective way according to the chemical characteristics.
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Affiliation(s)
- Tereza Kacalova
- Department of Food TechnologyMendel University in BrnoBrnoCzechia
| | - Alzbeta Jarosova
- Department of Food TechnologyMendel University in BrnoBrnoCzechia
| | - Olga Cwikova
- Department of Food TechnologyMendel University in BrnoBrnoCzechia
| | - Gabriela Franke
- Department of Food TechnologyMendel University in BrnoBrnoCzechia
| | - Tereza Soumarova
- Department of Food TechnologyMendel University in BrnoBrnoCzechia
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3
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Xiao L, Wang S, Wang Y, Wang B, Ji C, Lin X, Liang H, Zhang S, Xu X, Dong L. Density functional theory studies on the oleic acid thermal oxidation into volatile compounds. Food Chem X 2023; 19:100737. [PMID: 37780285 PMCID: PMC10534075 DOI: 10.1016/j.fochx.2023.100737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/27/2023] [Accepted: 06/01/2023] [Indexed: 10/03/2023] Open
Abstract
Oleic acid oxidation is one of the main sources of food flavor compounds. Volatile profiling was investigated using thermal desorption cryo-trapping combined with gas chromatography-mass spectrometry to analyze the volatile composition of oleic acid oxidation. A total of 43 volatile compounds, including aldehydes (11), ketones (2), alcohols (5), furans (2), acids (8), ester (12) and alkane (3) were identified from oleic acid during heating. Then, density functional theory (DFT) was applied to analyze the oxidative mechanism of oleic acid during heating. A total of 30 reactions were obtained and grouped into the peroxide (ROOH), alkoxy radical (RO•), and peroxide radical (ROO•) pathways. The structures of intermediates, transition states (TS), and products in each reaction were also determined. Results show that the branch chemical reactions were the key reactions in different reaction pathway. Moreover, the reaction priority of the thermal oxidation reaction of oleic acid was the peroxide radical mechanism > the peroxide mechanism > the alkoxy radical mechanism.
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Affiliation(s)
- Lin Xiao
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- China Resources Snow Beer, Beijing 100000, Beijing, China
| | - Shang Wang
- School of Biotechnology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yi Wang
- School of Biotechnology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Binchen Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Chaofan Ji
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Xinping Lin
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Huipeng Liang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Sufang Zhang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Xianbing Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
| | - Liang Dong
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian 116034, Liaoning, China
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4
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Peres F, Marques MP, Mourato M, Martins LL, Ferreira-Dias S. Ultrasound Assisted Coextraction of Cornicabra Olives and Thyme to Obtain Flavored Olive Oils. Molecules 2023; 28:6898. [PMID: 37836741 PMCID: PMC10574346 DOI: 10.3390/molecules28196898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Flavoring olive oils is a new trend in consumer preferences, and different enrichment techniques can be used. Coextraction of olives with a flavoring agent is an option for obtaining a flavored product without the need for further operations. Moreover, ultrasound (US) assisted extraction is an emergent technology able to increase extractability. Combining US and coextraction, it is possible to obtain new products using different types of olives (e.g., cultivar and ripening stage), ingredient(s) with the greatest flavoring and/or bioactive potential, as well as extraction conditions. In the present study, mastic thyme (Thymus mastichina L.) (TM) and lemon thyme (Thymus x citriodorus) (TC) were used for flavoring Cornicabra oils by coextraction. The coextraction trials were performed by (i) thyme addition to the olives during crushing or malaxation and (ii) US application before malaxation. Several parameters were evaluated in the oil: quality criteria parameters, total phenols, fatty acid composition, chlorophyll pigments, phenolic profile and oxidative stability. US application did not change the phenolic profile of Cornicabra olive oils, while the enrichment of olive oils with phenolic compounds or pigments by coextraction was very dependent on the thyme used. TM enrichment showed an improvement of several new phenolic compounds in the oils, while with TC, fewer new phenols were observed. In turn, in the trials with TC, the extraction of chlorophyll pigments was higher, particularly in crushing coprocessing. Moreover, the oils obtained with US and TM added in the mill or in the malaxator showed lower phenol decrease (59%) than oils flavored with TC (76% decrease) or Cornicabra virgin olive oil (80% decrease) over an 8-month storage period. Multivariate data analysis, considering quality parameters, pigments and phenolic contents, showed that flavored oils were mainly grouped by age.
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Affiliation(s)
- Fátima Peres
- Instituto Politécnico de Castelo Branco, Escola Superior Agrária, 6000-909 Castelo Branco, Portugal;
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Madalena Pinho Marques
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Miguel Mourato
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Luisa L. Martins
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Suzana Ferreira-Dias
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
- Laboratório de Estudos Técnicos, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
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A Review of Regulatory Standards and Advances in Essential Oils as Antimicrobials in Foods. J Food Prot 2023; 86:100025. [PMID: 36916569 DOI: 10.1016/j.jfp.2022.100025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/28/2022]
Abstract
As essential oils (EOs) possess GRAS status, there is a strong interest in their application to food preservation. Trends in the food industry suggest consumers are drawn to environmentally friendly alternatives and less synthetic chemical preservatives. Although the use of EOs has increased over the years, adverse effects have limited their use. This review aims to address the regulatory standards for EO usage in food, techniques for delivery of EOs, essential oils commonly used to control pathogens and molds, and advances with new active compounds that overcome sensory effects for meat products, fresh fruits and vegetables, fruit and vegetable juices, seafood, dairy products, and other products. This review will show adverse sensory effects can be overcome in various products by the use of edible coatings containing encapsulated EOs to facilitate the controlled release of EOs. Depending on the method of cooking, the food product has been shown to mask flavors associated with EOs. In addition, using active packaging materials can decrease the diffusion rate of the EOs, thus controlling undesirable flavor characteristics while still preserving or prolonging the shelf life of food. The use of encapsulation in packaging film can control the release of volatile or active ingredients. Further, use of EOs in the vapor phase allows for contact indirectly, and use of nanoemulsion, coating, and film wrap allows for the controlled release of the EOs. Research has also shown that combining EOs can prevent adverse sensory effects. Essential oils continue to serve as a very beneficial way of controlling undesirable microorganisms in food systems.
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Radice M, Durofil A, Buzzi R, Baldini E, Martínez AP, Scalvenzi L, Manfredini S. Alpha-Phellandrene and Alpha-Phellandrene-Rich Essential Oils: A Systematic Review of Biological Activities, Pharmaceutical and Food Applications. LIFE (BASEL, SWITZERLAND) 2022; 12:life12101602. [PMID: 36295037 PMCID: PMC9605662 DOI: 10.3390/life12101602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 12/04/2022]
Abstract
Alpha-phellandrene is a very common cyclic monoterpene found in several EOs, which shows extensive biological activities. Therefore, the main focus of the present systematic review was to provide a comprehensive and critical analysis of the state of the art regarding its biological activities and pharmaceutical and food applications. In addition, the study identified essential oils rich in alpha-phellandrene and summarized their main biological activities as a preliminary screening to encourage subsequent studies on their single components. With this review, we selected and critically analyzed 99 papers, using the following bibliographic databases: PubMed, SciELO, Wiley and WOS, on 8 July 2022. Data were independently extracted by four authors of this work, selecting those studies which reported the keyword "alpha-phellandrene" in the title and/or the abstract, and avoiding those in which there was not a clear correlation between the molecule and its biological activities and/or a specific concentration from its source. Duplication data were removed in the final article. Many essential oils have significant amounts of alpha-phellandrene, and the species Anethum graveolens and Foeniculum vulgare are frequently cited. Some studies on the above-mentioned species show high alpha-phellandrene amounts up to 82.1%. There were 12 studies on alpha-phellandrene as a pure molecule showed promising biological functions, including antitumoral, antinociceptive, larvicidal and insecticidal activities. There were 87 research works on EOs rich in alpha-phellandrene, which were summarized with a focus on additional data concerning potential biological activities. We believe this data is a useful starting point to start new research on the pure molecule, and, in particular, to distinguish between the synergistic effects of the different components of the OEs and those due to alpha-phellandrene itself. Toxicological data are still lacking, requiring further investigation on the threshold values to distinguish the boundary between beneficial and toxic effects, i.e., mutagenic, carcinogenic and allergenic. All these findings offer inspiration for potential applications of alpha-phellandrene as a new biopesticide, antimicrobial and antitumoral agent. In particular, we believe our work is of interest as a starting point for further studies on the food application of alpha-phellandrene.
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Affiliation(s)
- Matteo Radice
- Faculty of Earth Sciences, Universidad Estatal Amazónica, Puyo 160150, Ecuador
- Correspondence:
| | - Andrea Durofil
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Raissa Buzzi
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Erika Baldini
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | | | - Laura Scalvenzi
- Faculty of Earth Sciences, Universidad Estatal Amazónica, Puyo 160150, Ecuador
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
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Bay Laurel (Laurus nobilis L.) Essential Oil as a Food Preservative Source: Chemistry, Quality Control, Activity Assessment and Applications to Olive Industry Products. Foods 2022; 11:foods11050752. [PMID: 35267385 PMCID: PMC8909149 DOI: 10.3390/foods11050752] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 02/26/2022] [Accepted: 03/02/2022] [Indexed: 02/01/2023] Open
Abstract
Essential oils (EOs) find application as flavoring agents in the food industry and are also desirable ingredients as they possess preservative properties. The Mediterranean diet involves the use of a lot of herbs and spices and their products (infusions, EOs) as condiments and for the preservation of foods. Application of EOs has the advantage of homogeneous dispersion in comparison with dry leaf use in small pieces or powder. Among them, Laurus nobilis (bay laurel) L. EO is an interesting source of volatiles, such as 1,8-cineole and eugenol, which are known for their preservative properties. Its flavor suits cooked red meat, poultry, and fish, as well as vegetarian dishes, according to Mediterranean recipes. The review is focused on its chemistry, quality control aspects, and recent trends in methods of analysis and activity assessment with a focus on potential antioxidant activity and applications to olive industry products. Findings indicate that this EO is not extensively studied in comparison with those from other Mediterranean plants, such as oregano EO. More work is needed to establish authenticity and activity methods, whereas the interest for using it for the preparation of flavored olive oil or for the aromatization and preservation of table oils must be further encouraged.
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Yuxiang B, Jian D, Chen X, Wang M, Binchen W, Lin X, Kunya C, Dong L. Detailed Temperature‐dependent Study of Linoleic acid Oxidative Decomposition into Volatile Compounds in the Heating Process. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bao Yuxiang
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
| | - Du Jian
- Food Additives & Ingredients Association(CFAA) Beijing Beijing China
| | - Xu Chen
- Food Additives & Ingredients Association(CFAA) Beijing Beijing China
| | - Meiting Wang
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
| | - Wang Binchen
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
| | - Xiao Lin
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
| | - Cheng Kunya
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
| | - Liang Dong
- School of Food Science and Technology Dalian Polytechnic University Dalian Liaoning China
- National Engineering Research Center of Seafood Dalian Liaoning China
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