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Hu K, Guo K, Wang X, Wang S, Li J, Li Q, Zhao N, Liu A, He L, Hu X, Yang Y, Zou L, Chen S, Liu S. Occurrence of ochratoxin A in Sichuan bacon from different geographical regions and characterization and biocontrol of ochratoxigenic Aspergillus westerdijkiae strain 21G2-1A. Food Res Int 2024; 184:114272. [PMID: 38609249 DOI: 10.1016/j.foodres.2024.114272] [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: 10/28/2023] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
Sichuan bacon represents the most prevalent dry-cured meat product across Southwest China, but it is vulnerable to fungal spoilage. In the present study, a total of 47 Sichuan bacons were obtained from different regions of the Sichuan Province and analyzed for the presence of ochratoxin A (OTA), yielding a positive rate of 23.4 % (11/47). All the observed OTA concentrations exceeded the maximum admissible dose in meat products (1 μg/kg) established by some EU countries, with the highest OTA concentration being 250.75 μg/kg, which raises a food safety concern and reveals the need for a standardized scientific processing protocol. Then, an OTA-producing fungus named 21G2-1A was isolated from positive samples and found to be Aspergillus westerdijkiae. Further characterization suggested a positive correlation between fungal growth and OTA production. The optimal temperature for the former was 25 °C, while it was 20 °C for the latter. Although the A. westerdijkiae strain 21G2-1A demonstrated greater mycelium growth in the presence of NaCl, OTA production was significantly dismissed when the salinity was greater than 5 %. Four lactic acid bacteria (LAB) were screened out as antagonists against the ochratoxigenic fungus. In vitro evaluation of the antagonists revealed that live cells inhibited fungal growth, and adsorption also contributed to OTA removal at different levels. This study sheds some light on OTA control in Sichuan bacon through a biological approach.
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Affiliation(s)
- Kaidi Hu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Keyu Guo
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Xingjie Wang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Song Wang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Jianlong Li
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Qin Li
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Ning Zhao
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Aiping Liu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Li He
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Xinjie Hu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Yong Yang
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China
| | - Likou Zou
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, People's Republic of China
| | - Shujuan Chen
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China.
| | - Shuliang Liu
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, People's Republic of China.
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He Y, Degraeve P, Oulahal N. Bioprotective yeasts: Potential to limit postharvest spoilage and to extend shelf life or improve microbial safety of processed foods. Heliyon 2024; 10:e24929. [PMID: 38318029 PMCID: PMC10839994 DOI: 10.1016/j.heliyon.2024.e24929] [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: 12/22/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 02/07/2024] Open
Abstract
Yeasts are a widespread group of microorganisms that are receiving increasing attention from scientists and industry. Their diverse biological activities and broad-spectrum antifungal activity make them promising candidates for application, especially in postharvest biocontrol of fruits and vegetables and food biopreservation. The present review focuses on recent knowledge of the mechanisms by which yeasts inhibit pathogenic fungi and/or spoilage fungi and bacteria. The main mechanisms of action of bioprotective yeasts include competition for nutrients and space, synthesis and secretion of antibacterial compounds, mycoparasitism and the secretion of lytic enzymes, biofilm formation, quorum sensing, induced systemic resistance of fruit host, as well as the production of reactive oxygen species. Preadaptation of yeasts to abiotic stresses such as cold acclimatization and sublethal oxidative stress can improve the effectiveness of antagonistic yeasts and thus more effectively play biocontrol roles under a wider range of environmental conditions, thereby reducing economic losses. Combined application with other antimicrobial substances can effectively improve the efficacy of yeasts as biocontrol agents. Yeasts show great potential as substitute for chemical additives in various food fields, but their commercialization is still limited. Hence, additional investigation is required to explore the prospective advancements of yeasts in the field of biopreservation for food.
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Affiliation(s)
- Yan He
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
| | - Pascal Degraeve
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
| | - Nadia Oulahal
- Université Lyon, Université Claude Bernard Lyon 1, BioDyMIA Research Unit, ISARA, 155 Rue Henri de Boissieu, F-01000, Bourg en Bresse, France
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3
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Sipiczki M. Identification of antagonistic yeasts as potential biocontrol agents: Diverse criteria and strategies. Int J Food Microbiol 2023; 406:110360. [PMID: 37591131 DOI: 10.1016/j.ijfoodmicro.2023.110360] [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: 06/21/2023] [Revised: 07/30/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
Plant pathogenic and food spoilage microorganisms cause serious losses in crop production and severe damage during food manufacturing, transportation and storage. Synthetic antimicrobial agents are commonly used to control their propagation and harmful activities. However, the recent trend is shifting from chemicals towards safer and more eco-friendly alternatives. The use of antagonistic microorganisms as biological antimicrobial agents is becoming popular throughout the world to replace chemical agents. High numbers of microorganisms have turned out to exert adverse/inhibitory effects on other microorganisms including pathogens and spoiling strains. However, most of them are only active under laboratory conditions and their activity is sensitive to environmental changes. Only a small number of them can be used to manufacture biological protective products on an industrial scale. Therefore, there is a great need to identify additional antagonists. Yeasts have come to the forefront of attention because antimicrobial antagonism is fairly widespread among them. In the recent years, numerous excellent review articles covered various aspects of the phenomenon of antimicrobial antagonism of yeasts. However, none of them dealt with how antagonistic yeasts can be sought and identified, despite the high number and diverse efficiency of screening and identification procedures. As researchers working in different laboratories use different criteria and different experimental set-ups, a yeast strain found antagonistic in one laboratory may prove to be non-antagonistic in another laboratory. This review aims to provide a comprehensive and partially critical overview of the wide diversity of identification criteria and procedures to help researchers choose appropriate screening and identification strategies.
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Affiliation(s)
- M Sipiczki
- Department of Genetics and Applied Microbiology, University of Debrecen, Debrecen, Hungary.
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Cebrián E, Roncero E, Delgado J, Núñez F, Rodríguez M. Deciphering Staphylococcus xylosus and Staphylococcus equorum mode of action against Penicillium nordicum in a dry-cured ham model system. Int J Food Microbiol 2023; 405:110342. [PMID: 37523903 DOI: 10.1016/j.ijfoodmicro.2023.110342] [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: 03/07/2023] [Revised: 06/09/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
Penicillium nordicum is one of the major producers of ochratoxin A (OTA) in dry-cured ham. Staphylococcus xylosus Sx8 and Staphylococcus equorum Se31 have been previously proposed as biocontrol agents (BCAs) to prevent the OTA contamination, although their antifungal mode of action has not been established yet. Thus, the aim of this work was to elucidate their mode of action against P. nordicum in a dry-cured ham model system. For this, the effect of live cells, dead cells, and cell-free broth; the nutritional utilisation pattern, niche overlap index (NOI), interactions by dual-culture assays, antifungal effect of volatile compounds, OTA detoxification, and effect on fungal proteome were determined. No fungal growth was observed after 14 days of co-culture with live cells of each staphylococcus at 15 or 20 °C. However, such inhibition was not observed with either dead cells or extracellular extracts. The number of carbon sources utilised by P. nordicum was higher than those used by both cocci at 20 °C, whilst the opposite occurred at 15 °C. According to NOI, nutritional dominance depends on temperature, at 20 °C P. nordicum dominated the niche, but at 15 °C the mould is dominated by the BCAs. The volatile pattern generated by each coccus did not show antifungal effect, and both staphylococci failed to degrade or adsorb OTA. However, in the interaction assay, S. xylosus and S. equorum were able to decrease the fungal growth and its OTA production. In addition, proteomic analyses showed changes in the abundance of proteins related to the cell wall integrity (CWI), carbohydrate metabolism and the biosynthesis of secondary metabolites such as OTA. In conclusion, overall, the antagonistic effects of the two studied cocci against P. nordicum are greater at 15 °C than at 20 °C, being linked to competition for space and nutrients, triggering alterations in CWI pathway, OTA biosynthesis, and carbohydrate metabolism.
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Affiliation(s)
- Eva Cebrián
- Higiene y Seguridad Alimentaria, Instituto de Investigación de Carne y Productos Cárnicos (IProCar), Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Elia Roncero
- Higiene y Seguridad Alimentaria, Instituto de Investigación de Carne y Productos Cárnicos (IProCar), Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Josué Delgado
- Higiene y Seguridad Alimentaria, Instituto de Investigación de Carne y Productos Cárnicos (IProCar), Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain.
| | - Félix Núñez
- Higiene y Seguridad Alimentaria, Instituto de Investigación de Carne y Productos Cárnicos (IProCar), Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Mar Rodríguez
- Higiene y Seguridad Alimentaria, Instituto de Investigación de Carne y Productos Cárnicos (IProCar), Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
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Mastanjević K, Kovačević D, Nešić K, Krstanović V, Habschied K. Traditional Meat Products-A Mycotoxicological Review. Life (Basel) 2023; 13:2211. [PMID: 38004351 PMCID: PMC10671907 DOI: 10.3390/life13112211] [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: 10/20/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Traditional meat products are commonly produced in small family businesses. However, big industries are also involved in the production of this kind of product, especially since a growing number of consumers crave the traditional taste and aromas. The popularization of original and organic products has resulted in a return to traditional production methods. Traditional meat products are produced worldwide. However, in such (domesticated) conditions there is a potential danger for mycotoxin contamination. This review aims to present the sources of mycotoxins in traditional meat products, the most common mycotoxins related to such meat products, and future prospects regarding the suppression of their occurrence. Special attention should be paid to reducing the transfer of mycotoxins via the food chain from animal feed to animals to humans (stable-to-table principle), which is also described in this review. Other sources of mycotoxins (spices, environment, etc.) should also be monitored for mycotoxins in traditional production. The importance of monitoring and regulating mycotoxins in meat products, especially in traditional meat products, is slowly being recognized by the institutions and hopefully, in the future, can deliver legally regulated limits for such products. This is especially important since meat products are available to the general population and can seriously affect human health.
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Affiliation(s)
- Krešimir Mastanjević
- Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (K.M.); (D.K.); (V.K.)
| | - Dragan Kovačević
- Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (K.M.); (D.K.); (V.K.)
| | - Ksenija Nešić
- Food and Feed Department, Institute of Veterinary Medicine of Serbia, Smolućska 11, 11070 Beograd, Serbia;
| | - Vinko Krstanović
- Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (K.M.); (D.K.); (V.K.)
| | - Kristina Habschied
- Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (K.M.); (D.K.); (V.K.)
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Álvarez M, Andrade MJ, Cebrián E, Roncero E, Delgado J. Perspectives on the Probiotic Potential of Indigenous Moulds and Yeasts in Dry-Fermented Sausages. Microorganisms 2023; 11:1746. [PMID: 37512918 PMCID: PMC10385761 DOI: 10.3390/microorganisms11071746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/27/2023] [Accepted: 07/01/2023] [Indexed: 07/30/2023] Open
Abstract
The role of indigenous fungi in the appropriate development of sensory properties and the safety of dry-fermented sausages has been widely established. Nonetheless, their applications as probiotic agents have not been elucidated in such products yet, despite their promising functional features. Thus, it should be interesting to evaluate the probiotic potential of native Debaryomyces hansenii isolates from dry-fermented sausages and their application in the meat industry, because it is the most frequently isolated yeast species from these foodstuffs and its probiotic effects for animals as well as its possible probiotic activity for human beings have been demonstrated. Within the functional ability of foodborne yeasts, anti-inflammatory, antioxidant, antimicrobial, antigenotoxic, and immunomodulatory properties have been reported. Similarly, the use of dry-fermented sausages as vehicles for probiotic moulds remains a challenge because the survival and development of moulds in the gastrointestinal tract are still unknown. Nevertheless, some moulds have been isolated from faeces possibly from their spores as a form of resistance. Additionally, their beneficial effects on animals and humans, such as the decrease in lipid content and the anti-inflammatory activity, have been reported, although they seem to be more related to their postbiotic capacity due to the generated bioactive compounds with profunctional attributes than to their role as probiotics. Therefore, further studies providing knowledge useful for generating dry-fermented sausages with improved functionality are fully necessary.
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Affiliation(s)
- Micaela Álvarez
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - María J Andrade
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Eva Cebrián
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Elia Roncero
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
| | - Josué Delgado
- Higiene y Seguridad Alimentaria, Instituto Universitario de Investigación de Carne y Productos Cárnicos, Facultad de Veterinaria, Universidad de Extremadura, Avda. de las Ciencias s/n, 10003 Cáceres, Spain
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Osimani A, Belleggia L, Botta C, Ferrocino I, Milanović V, Cardinali F, Haouet MN, Garofalo C, Mozzon M, Foligni R, Aquilanti L. Journey to the morpho-textural traits, microbiota, and volatilome of Ciauscolo PGI salami. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Karbowiak M, Szymański P, Zielińska D. Synergistic Effect of Combination of Various Microbial Hurdles in the Biopreservation of Meat and Meat Products—Systematic Review. Foods 2023; 12:foods12071430. [PMID: 37048251 PMCID: PMC10093799 DOI: 10.3390/foods12071430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 03/30/2023] Open
Abstract
The control of spoilage microorganisms and foodborne pathogens in meat and meat products is a challenge for food producers, which potentially can be overcome through the combined use of biopreservatives, in the form of a mix of various microbial hurdles. The objective of this work is to systematically review the available knowledge to reveal whether various microbial hurdles applied in combination can pose an effective decontamination strategy for meat and meat products. PubMed, Web of Science, and Scopus were utilized to identify and evaluate studies through February 2023. Search results yielded 45 articles that met the inclusion criteria. The most common meat biopreservatives were combinations of various starter cultures (24 studies), and the use of mixtures of non-starter protective cultures (13 studies). In addition, studies evaluating antimicrobial combinations of bacteriocins with other bacteriocins, BLIS (bacteriocin-like inhibitory substance), non-starter protective cultures, reuterin, and S-layer protein were included in the review (7 studies). In one study, a biopreservative mixture comprised antifungal protein PgAFP and protective cultures. The literature search revealed a positive effect, in most of the included studies, of the combination of various bacterial antimicrobials in inhibiting the growth of pathogenic and spoilage bacteria in meat products. The main advantages of the synergistic effect achieved were: (1) the induction of a stronger antimicrobial effect, (2) the extension of the spectrum of antibacterial action, and (3) the prevention of the regrowth of undesirable microorganisms. Although further research is required in this area, the combination of various microbial hurdles can pose a green and valuable biopreservation approach for maintaining the safety and quality of meat products.
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Affiliation(s)
- Marcelina Karbowiak
- Department of Food Gastronomy and Food Hygiene, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159C St., (Building No. 32), 02-776 Warsaw, Poland;
| | - Piotr Szymański
- Department of Meat and Fat Technology, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, Rakowiecka 36 St., 02-532 Warsaw, Poland
| | - Dorota Zielińska
- Department of Food Gastronomy and Food Hygiene, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159C St., (Building No. 32), 02-776 Warsaw, Poland;
- Correspondence:
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Proteomics as a New-Generation Tool for Studying Moulds Related to Food Safety and Quality. Int J Mol Sci 2023; 24:ijms24054709. [PMID: 36902140 PMCID: PMC10003330 DOI: 10.3390/ijms24054709] [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: 01/31/2023] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
Mould development in foodstuffs is linked to both spoilage and the production of mycotoxins, provoking food quality and food safety concerns, respectively. The high-throughput technology proteomics applied to foodborne moulds is of great interest to address such issues. This review presents proteomics approaches useful for boosting strategies to minimise the mould spoilage and the hazard related to mycotoxins in food. Metaproteomics seems to be the most effective method for mould identification despite the current problems related to the bioinformatics tool. More interestingly, different high resolution mass spectrometry tools are suitable for evaluating the proteome of foodborne moulds able to unveil the mould's response under certain environmental conditions and the presence of biocontrol agents or antifungals, being sometimes combined with a method with limited ability to separate proteins, the two-dimensional gel electrophoresis. However, the matrix complexity, the high ranges of protein concentrations needed and the performing of multiple steps are some of the proteomics limitations for the application to foodborne moulds. To overcome some of these limitations, model systems have been developed and proteomics applied to other scientific fields, such as library-free data independent acquisition analyses, the implementation of ion mobility, and the evaluation of post-translational modifications, are expected to be gradually implemented in this field for avoiding undesirable moulds in foodstuffs.
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Perfume Guns: Potential of Yeast Volatile Organic Compounds in the Biological Control of Mycotoxin-Producing Fungi. Toxins (Basel) 2023; 15:toxins15010045. [PMID: 36668865 PMCID: PMC9866025 DOI: 10.3390/toxins15010045] [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: 11/23/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Pathogenic fungi in the genera Alternaria, Aspergillus, Botrytis, Fusarium, Geotrichum, Gloeosporium, Monilinia, Mucor, Penicillium, and Rhizopus are the most common cause of pre- and postharvest diseases of fruit, vegetable, root and grain commodities. Some species are also able to produce mycotoxins, secondary metabolites having toxic effects on human and non-human animals upon ingestion of contaminated food and feed. Synthetic fungicides still represent the most common tool to control these pathogens. However, long-term application of fungicides has led to unacceptable pollution and may favour the selection of fungicide-resistant mutants. Microbial biocontrol agents may reduce the incidence of toxigenic fungi through a wide array of mechanisms, including competition for the ecological niche, antibiosis, mycoparasitism, and the induction of resistance in the host plant tissues. In recent years, the emission of volatile organic compounds (VOCs) has been proposed as a key mechanism of biocontrol. Their bioactivity and the absence of residues make the use of microbial VOCs a sustainable and effective alternative to synthetic fungicides in the management of postharvest pathogens, particularly in airtight environments. In this review, we will focus on the possibility of applying yeast VOCs in the biocontrol of mycotoxigenic fungi affecting stored food and feed.
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Genome Sequence of the Diploid Yeast Debaryomyces hansenii TMW 3.1188. Microbiol Resour Announc 2022; 11:e0064922. [PMID: 36287019 PMCID: PMC9670972 DOI: 10.1128/mra.00649-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Debaryomyces hansenii TMW 3.1188 is a halotolerant diploid yeast that was isolated from lupine moromi fermentation. Here, we report on the 24.77-Mbp genome of a diploid strain of the species D. hansenii.
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Mycotoxins and Essential Oils-From a Meat Industry Hazard to a Possible Solution: A Brief Review. Foods 2022; 11:foods11223666. [PMID: 36429263 PMCID: PMC9688991 DOI: 10.3390/foods11223666] [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: 10/14/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022] Open
Abstract
The preservation of food supplies has been humankind's priority since ancient times, and it is arguably more relevant today than ever before. Food sustainability and safety have been heavily prioritized by consumers, producers, and government entities alike. In this regard, filamentous fungi have always been a health hazard due to their contamination of the food substrate with mycotoxins. Additionally, mycotoxins are proven resilient to technological processing. This study aims to identify the main mycotoxins that may occur in the meat and meat products "Farm to Fork" chain, along with their effect on the consumers' health, and also to identify effective methods of prevention through the use of essential oils (EO). At the same time, the antifungal and antimycotoxigenic potential of essential oils was considered in order to provide an overview of the subject. Targeting the main ways of meat products' contamination, the use of essential oils with proven in vitro or in situ efficacy against certain fungal species can be an effective alternative if all the associated challenges are addressed (e.g., application methods, suitability for certain products, toxicity).
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Chen Y, Chen J, Zhu Q, Wan J. Ochratoxin A in Dry-Cured Ham: OTA-Producing Fungi, Prevalence, Detection Methods, and Biocontrol Strategies-A Review. Toxins (Basel) 2022; 14:toxins14100693. [PMID: 36287962 PMCID: PMC9612072 DOI: 10.3390/toxins14100693] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/26/2022] [Accepted: 10/08/2022] [Indexed: 11/05/2022] Open
Abstract
Traditional dry-cured hams are easily contaminated by toxigenic fungi during the fermentation and ripening stages. The detection and positive rates of ochratoxin A (OTA) are the highest among mycotoxins detected in traditional dry-cured hams, indicating that OTA in hams is a potential safety hazard to human health. This review addresses the mycotoxin-producing fungal species, the toxigenic conditions causing OTA contamination worldwide, the prevalence of OTA contamination in dry-cured hams, and the detection methods applied in OTA analysis. Additionally, this study introduces methods to prevent and control OTA in traditional dry-cured hams. The growth of common mycotoxin-producing fungi and the accumulation of mycotoxins in dry-cured ham can be controlled by a microbial starter. This review provides an important theoretical foundation for the research and control of OTA in traditional dry-cured hams.
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Affiliation(s)
- Yuanshan Chen
- Department of Liquor and Food Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jiang Chen
- College of Life Sciences, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Qiujin Zhu
- Department of Liquor and Food Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jing Wan
- Department of Liquor and Food Engineering, Guizhou University, Huaxi District, Guiyang 550025, China
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Huaxi District, Guiyang 550025, China
- Correspondence: ; Tel.: +86-178-3034-8541
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Chacón-Navarrete H, Ruiz-Pérez F, Ruiz-Castilla FJ, Ramos J. Exploring Biocontrol of Unwanted Fungi by Autochthonous Debaryomyces hansenii Strains Isolated from Dry Meat Products. J Fungi (Basel) 2022; 8:jof8080873. [PMID: 36012861 PMCID: PMC9410373 DOI: 10.3390/jof8080873] [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: 07/06/2022] [Revised: 08/11/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
The exploration of alternatives to the use of chemical preservatives in food is a topic that has attracted great attention. The implementation of regulations associated with the reduction of these elements directly affects the production of cured meat products, with the premise of looking for more “natural” alternatives. From a previously identified collection of 24 strains of Debaryomyces hansenii, isolated from dry meat products of the “Valle de los Pedroches” (Córdoba), a screening was carried out to determine which strains had inhibitory potential against a battery of fungi belonging to the genera Aspergillus, Penicillium, and Candida. After a series of general trials, four strains showing the greatest potential were selected by a streak inhibition assay performed at several concentrations of NaCl. The inhibitory activity of the selected D. hansenii strains was later evaluated by measuring their fungal antagonistic diffusible and volatile compound production following radial inhibition and mouth-to-mouth approaches, respectively. Growth aspects, sporulation, and morphology changes were also considered during these assays. The results support ideas already raised in previous studies, such as the presence of D. hanseniii could imply a reduction of pathogenic fungi in food. Autochthonous yeast strains inhibited not only the mycelial growth, but also sporulation, which strengthens the biocontrol activity of this yeast. Our results show that, under certain conditions, all tested D. hansenii strains were able to alter the growth/development of fungi, being especially evident in the cases of Penicillium expansum and Aspergillus niger. Finally, our research can facilitate the future comparison of results in this area, since we contributed to standardize the methodology described to date, we quantified the number of yeast cells and spores used during the experiments, we homogenized growth conditions for both, yeasts, and molds, and applied an image analyzer software to quantify the growth of the studied microorganisms in solid media.
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Álvarez M, Núñez F, Delgado J, Andrade MJ, Rodrigues P. Proteomic evaluation of the effect of antifungal agents on aspergillus westerdijkiae ochratoxin A production in a dry-cured fermented sausage-based medium. Int J Food Microbiol 2022; 379:109858. [DOI: 10.1016/j.ijfoodmicro.2022.109858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/12/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
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16
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Gomomo Z, Fanadzo M, Mewa-Ngongang M, Hoff J, Van der Rijst M, Okudoh V, Kriel J, du Plessis H. Control of Mould Spoilage on Apples Using Yeasts as Biological Control Agents. POL J FOOD NUTR SCI 2022. [DOI: 10.31883/pjfns/147913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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17
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Cebrián E, Núñez F, Álvarez M, Roncero E, Rodríguez M. Biocontrol of ochratoxigenic Penicillium nordicum in dry-cured fermented sausages by Debaryomyces hansenii and Staphylococcus xylosus. Int J Food Microbiol 2022; 375:109744. [DOI: 10.1016/j.ijfoodmicro.2022.109744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
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18
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Zhou C, Xia Q, Du L, He J, Sun Y, Dang Y, Geng F, Pan D, Cao J, Zhou G. Recent developments in off-odor formation mechanism and the potential regulation by starter cultures in dry-cured ham. Crit Rev Food Sci Nutr 2022; 63:8781-8795. [PMID: 35373656 DOI: 10.1080/10408398.2022.2057418] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Foul-smelling odors are main quality defects of dry-cured ham, which are connected with the excessive degradation of the structural proteins and excessive oxidation of lipids caused by the abnormal growth of spoilage microorganisms, threatening the development of dry-cured ham industry. Characterizing the key microorganisms and metabolites resulted in the spoilage of dry-cured ham, and discussing the relationship between spoilage microorganisms and metabolites are the key aspects to deeply understand the formation mechanism of off-odor in dry-cured ham. Until now, there is no detailed discussion or critical review on the role of spoilage microorganisms in developing the off-odor of dry-cured ham, and the regulation of off-odor and spoilage microorganisms by starter cultures has been not discussed. This review shows the recent achievement in the off-odor formation mechanism of dry-cured ham, and outlines the potential regulation of off-odor defects in dry-cured ham by starter cultures. Results from current research show that the abnormal growth of Lactic acid bacteria, Micrococcaceae, Enterobacteriaceae, Yeasts and Molds plays a key role in developing the off-odor defects of dry-cured ham, while the key spoilage microorganisms of different type hams are discrepant. High profile of aldehydes, acids, sulfur compounds and biogenic amines are responsible for off-odor development in spoiled dry-cured ham. Several starter cultures derived from these species of Staphylococcus, Penicillium, Debaryomyces, Pediococcus and Lactobacillus show a great potential to prevent microbiological hazards and improve flavor quality of dry-cured ham, whereas, the ecology, function and compatibility of these starter cultures with the processing parameters of dry-cured ham need to be further evaluated in the future.
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Affiliation(s)
- Changyu Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Qiang Xia
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Lihui Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Jun He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Yangying Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Yali Dang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Fang Geng
- Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu, P.R. China
| | - Daodong Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province; College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Jinxuan Cao
- School of Food and Health, Beijing Technology and Business University, Beijing, P.R. China
| | - Guanghong Zhou
- Key Laboratory of Meat Processing and Quality Control, MOE; Key Laboratory of Meat Processing, MOA; Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, Nanjing Agricultural University, Nanjing, P.R. China
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19
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Tamang JP, Lama S. Probiotic Properties of Yeasts in Traditional Fermented Foods and Beverages. J Appl Microbiol 2022; 132:3533-3542. [DOI: 10.1111/jam.15467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Jyoti Prakash Tamang
- DAICENTER (DBT‐AIST International Centre for Translational and Environmental Research) and Bioinformatics Centre, Department of Microbiology, School of Life Sciences Sikkim University Gangtok Sikkim India
| | - Sonam Lama
- DAICENTER (DBT‐AIST International Centre for Translational and Environmental Research) and Bioinformatics Centre, Department of Microbiology, School of Life Sciences Sikkim University Gangtok Sikkim India
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20
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Ochratoxin A in Slaughtered Pigs and Pork Products. Toxins (Basel) 2022; 14:toxins14020067. [PMID: 35202095 PMCID: PMC8876995 DOI: 10.3390/toxins14020067] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023] Open
Abstract
Ochratoxin A (OTA) is a mycotoxin that is produced after the growth of several Aspergillus and Penicillium spp. in feeds or foods. OTA has been proved to possess nephrotoxic, hepatotoxic, teratogenic, neurotoxic, genotoxic, carcinogenic and immunotoxic effects in animals and humans. OTA has been classified as possibly carcinogenic to humans (Group 2B) by the IARC in 2016. OTA can be mainly found in animals as a result of indirect transmission from naturally contaminated feed. OTA found in feed can also contaminate pigs and produced pork products. Additionally, the presence of OTA in pork meat products could be derived from the direct growth of OTA-producing fungi or the addition of contaminated materials such as contaminated spices. Studies accomplished in various countries have revealed that pork meat and pork meat products are important sources of chronic dietary exposure to OTA in humans. Various levels of OTA have been found in pork meat from slaughtered pigs in many countries, while OTA levels were particularly high in the blood serum and kidneys of pigs. Pork products made from pig blood or organs such as the kidney or liver have been often found to becontaminated with OTA. The European Union (EU) has established maximum levels (ML) for OTA in a variety of foods since 2006, but not for meat or pork products. However, the establishement of an ML for OTA in pork meat and meat by-products is necessary to protect human health.
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21
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Bangar SP, Sharma N, Kumar M, Ozogul F, Purewal SS, Trif M. Recent developments in applications of lactic acid bacteria against mycotoxin production and fungal contamination. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Coton M, Deniel F, Mounier J, Joubrel R, Robieu E, Pawtowski A, Jeuge S, Taminiau B, Daube G, Coton E, Frémaux B. Microbial Ecology of French Dry Fermented Sausages and Mycotoxin Risk Evaluation During Storage. Front Microbiol 2021; 12:737140. [PMID: 34803951 PMCID: PMC8601720 DOI: 10.3389/fmicb.2021.737140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/04/2021] [Indexed: 01/04/2023] Open
Abstract
Dry fermented sausages are produced worldwide by well-controlled fermentation processes involving complex microbiota including many bacterial and fungal species with key technological roles. However, to date, fungal diversity on sausage casings during storage has not been fully described. In this context, we studied the microbial communities from dry fermented sausages naturally colonized or voluntarily surface inoculated with molds during storage using both culture-dependent and metabarcoding methods. Staphylococci and lactic acid bacteria largely dominated in samples, although some halotolerant genera (e.g., Halomonas, Tetragenococcus, and Celerinatantimonas spp.) were also frequently observed. Fungal populations varied from 7.2 to 9.8 log TFU/cm2 sausage casing during storage, suggesting relatively low count variability among products. Fungal diversity identified on voluntarily inoculated casings was lower (dominated by Penicillium nalgiovense and Debaryomyces hansenii) than naturally environment-inoculated fermented sausages (colonized by P. nalgiovense, Penicillium nordicum, and other Penicillium spp. and sporadically by Scopulariopsis sp., D. hansenii, and Candida zeylanoïdes). P. nalgiovense and D. hansenii were systematically identified, highlighting their key technological role. The mycotoxin risk was then evaluated, and in situ mycotoxin production of selected mold isolates was determined during pilot-scale sausage productions. Among the identified fungal species, P. nalgiovense was confirmed not to produce mycotoxins. However, some P. nordicum, Penicillium chrysogenum, Penicillium bialowienzense, Penicillium brevicompactum, and Penicillium citreonigrum isolates produced one or more mycotoxins in vitro. P. nordicum also produced ochratoxin A during pilot-scale sausage productions using “worst-case” conditions in the absence of biotic competition. These data provide new knowledge on fermented sausage microbiota and the potential mycotoxin risk during storage.
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Affiliation(s)
- Monika Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Franck Deniel
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Jérôme Mounier
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Rozenn Joubrel
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Emeline Robieu
- IFIP French Pork Research Institute, Maisons-Alfort, France
| | - Audrey Pawtowski
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - Sabine Jeuge
- IFIP French Pork Research Institute, Maisons-Alfort, France
| | - Bernard Taminiau
- Faculté de Médecine Vétérinaire, Laboratoire de Microbiologie des Denrées Alimentaires, Fundamental and Applied Research for Animal and Health (FARAH), Université de Liège, Liège, Belgium
| | - Georges Daube
- Faculté de Médecine Vétérinaire, Laboratoire de Microbiologie des Denrées Alimentaires, Fundamental and Applied Research for Animal and Health (FARAH), Université de Liège, Liège, Belgium
| | - Emmanuel Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
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23
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Álvarez M, Delgado J, Núñez F, Cebrián E, Andrade MJ. Proteomic analyses reveal mechanisms of action of biocontrol agents on ochratoxin A repression in Penicillium nordicum. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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24
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de Souza T, Evangelista S, Passamani F, Bertechini R, de Abreu L, Batista L. Mycobiota of Minas artisanal cheese: Safety and quality. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.105085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Degenhardt R, Sobral Marques Souza D, Acordi Menezes LA, de Melo Pereira GV, Rodríguez-Lázaro D, Fongaro G, De Dea Lindner J. Detection of Enteric Viruses and Core Microbiome Analysis in Artisanal Colonial Salami-Type Dry-Fermented Sausages from Santa Catarina, Brazil. Foods 2021; 10:foods10081957. [PMID: 34441733 PMCID: PMC8392621 DOI: 10.3390/foods10081957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/06/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
Microbial fermentation plays an important role in the manufacturing of artisanal sausages and can have major effects on product quality and safety. We used metagenomics and culture-dependent methods to study the presence of Hepatitis E virus (HEV) and Rotavirus-A (RV-A), and fungal and bacterial communities, in artisanal Colonial salami-type dry-fermented sausages in Santa Catarina state, Brazil. Lactic acid bacteria (LAB) and yeast dominated the microbiome. Latilactobacillus sakei and Debaryomyces hansenii were ubiquitous and the most abundant species. The DNA of some foodborne pathogens was found in very low concentrations although viable cells of most of these species were undetectable by cultivation methods. The characteristics of the raw material and hygiene of the artisanal sausage manufacturing process resulted in high loads of beneficial microorganisms and the absence of HEV and RV-A viruses as determined by RT-qPCR assays. In conclusion, high LAB load in sausages was more relevant to preventing pathogen growth than the ripening time and/or physicochemical characteristics. However, the presence of Clostridium spp. and other pathogens in some samples must be taken into account for the development of future preservation methods; appropriate LAB starter cultures and health surveillance are required in the production process to prevent foodborne outbreaks.
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Affiliation(s)
- Roberto Degenhardt
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil; (R.D.); (D.S.M.S.); (L.A.A.M.)
- Biological and Health Sciences Department, West of Santa Catarina State University (UNOESC), Joaçaba 89600-000, SC, Brazil
| | - Doris Sobral Marques Souza
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil; (R.D.); (D.S.M.S.); (L.A.A.M.)
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil;
| | - Leidiane A. Acordi Menezes
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil; (R.D.); (D.S.M.S.); (L.A.A.M.)
- Neoprospecta Microbiome Technologies, Sapiens Park, Florianópolis 88056-000, SC, Brazil
| | | | - David Rodríguez-Lázaro
- Microbiology Division, Faculty of Sciences, University of Burgos, 9070 Burgos, Spain;
- Center for Emerging Pathogens and Global Health, University of Burgos, 9070 Burgos, Spain
| | - Gislaine Fongaro
- Laboratory of Applied Virology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil;
| | - Juliano De Dea Lindner
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis 88034-000, SC, Brazil; (R.D.); (D.S.M.S.); (L.A.A.M.)
- Correspondence:
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26
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Mewa Ngongang M, Du Plessis H, Boredi C, Hutchinson U, Ntwampe K, Okudoh V, Jolly N. Physiological and Antagonistic Properties of Pichia kluyveri for Curative and Preventive Treatments Against Post-Harvest Fruit Fungi. POL J FOOD NUTR SCI 2021. [DOI: 10.31883/pjfns/139278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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27
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Ramos-Moreno L, Ruiz-Pérez F, Rodríguez-Castro E, Ramos J. Debaryomyces hansenii Is a Real Tool to Improve a Diversity of Characteristics in Sausages and Dry-Meat Products. Microorganisms 2021; 9:microorganisms9071512. [PMID: 34361947 PMCID: PMC8303870 DOI: 10.3390/microorganisms9071512] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 11/16/2022] Open
Abstract
Debaryomyces hansenii yeast represents a promising target for basic and applied biotechnological research It is known that D. hansenii is abundant in sausages and dry-meat products, but information regarding its contribution to their characteristics is blurry and contradictory. The main goal in this review was to define the biological contribution of D. hansenii to the final features of these products. Depending on multiple factors, D. hansenii may affect diverse physicochemical characteristics of meat products. However, there is general agreement about the significant generation of volatile and aromatic compounds caused by the metabolic activities of this yeast, which consequently provide a tendency for improved consumer acceptance. We also summarize current evidence highlighting that it is not possible to predict what the results would be after the inoculation of a meat product with a selected D. hansenii strain without a pivotal previous study. The use of D. hansenii as a biocontrol agent and to manufacture new meat products by decreasing preservatives are examples of exploring research lines that will complement current knowledge and contribute to prepare new and more ecological products.
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28
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Huang C, Zhang L, Johansen PG, Petersen MA, Arneborg N, Jespersen L. Debaryomyces hansenii Strains Isolated From Danish Cheese Brines Act as Biocontrol Agents to Inhibit Germination and Growth of Contaminating Molds. Front Microbiol 2021; 12:662785. [PMID: 34211441 PMCID: PMC8239395 DOI: 10.3389/fmicb.2021.662785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/20/2021] [Indexed: 11/13/2022] Open
Abstract
The antagonistic activities of native Debaryomyces hansenii strains isolated from Danish cheese brines were evaluated against contaminating molds in the dairy industry. Determination of chromosome polymorphism by use of pulsed-field gel electrophoresis (PFGE) revealed a huge genetic heterogeneity among the D. hansenii strains, which was reflected in intra-species variation at the phenotypic level. 11 D. hansenii strains were tested for their ability to inhibit germination and growth of contaminating molds, frequently occurring at Danish dairies, i.e., Cladosporium inversicolor, Cladosporium sinuosum, Fusarium avenaceum, Mucor racemosus, and Penicillium roqueforti. Especially the germination of C. inversicolor and P. roqueforti was significantly inhibited by cell-free supernatants of all D. hansenii strains. The underlying factors behind the inhibitory effects of the D. hansenii cell-free supernatants were investigated. Based on dynamic headspace sampling followed by gas chromatography-mass spectrometry (DHS-GC-MS), 71 volatile compounds (VOCs) produced by the D. hansenii strains were identified, including 6 acids, 22 alcohols, 15 aldehydes, 3 benzene derivatives, 8 esters, 3 heterocyclic compounds, 12 ketones, and 2 phenols. Among the 71 identified VOCs, inhibition of germination of C. inversicolor correlated strongly with three VOCs, i.e., 3-methylbutanoic acid, 2-pentanone as well as acetic acid. For P. roqueforti, two VOCs correlated with inhibition of germination, i.e., acetone and 2-phenylethanol, of which the latter also correlated strongly with inhibition of mycelium growth. Low half-maximal inhibitory concentrations (IC50) were especially observed for 3-methylbutanoic acid, i.e., 6.32-9.53 × 10-5 and 2.00-2.67 × 10-4 mol/L for C. inversicolor and P. roqueforti, respectively. For 2-phenylethanol, a well-known quorum sensing molecule, the IC50 was 1.99-7.49 × 10-3 and 1.73-3.45 × 10-3 mol/L for C. inversicolor and P. roqueforti, respectively. For acetic acid, the IC50 was 1.35-2.47 × 10-3 and 1.19-2.80 × 10-3 mol/L for C. inversicolor and P. roqueforti, respectively. Finally, relative weak inhibition was observed for 2-pentanone and acetone. The current study shows that native strains of D. hansenii isolated from Danish brines have antagonistic effects against specific contaminating molds and points to the development of D. hansenii strains as bioprotective cultures, targeting cheese brines and cheese surfaces.
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Affiliation(s)
| | | | | | | | | | - Lene Jespersen
- Department of Food Science, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
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29
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Yu J, Yang M, Han J, Pang X. Fungal and mycotoxin occurrence, affecting factors, and prevention in herbal medicines: a review. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1925696] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jingsheng Yu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, China
| | - Meihua Yang
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jianping Han
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, China
| | - Xiaohui Pang
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, China
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30
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Esen Y, Çetin B. Bacterial and yeast microbial diversity of the ripened traditional middle east surk cheese. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.105004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Franciosa I, Coton M, Ferrocino I, Corvaglia MR, Poirier E, Jany JL, Rantsiou K, Cocolin L, Mounier J. Mycobiota dynamics and mycotoxin detection in PGI Salame Piemonte. J Appl Microbiol 2021; 131:2336-2350. [PMID: 33893697 DOI: 10.1111/jam.15114] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 12/28/2022]
Abstract
AIMS The complex mycobiota that colonizes traditional fermented sausages plays an important role in the organoleptic properties of such products. The aim of the present study was to investigate fungal diversity and mycotoxin production during maturation of PGI Salame Piemonte. METHODS AND RESULTS Casing and meat samples were collected at five sampling times from three different batches produced in the same factory and analysed using culture-dependent and independent approaches. Penicillium nalgiovense, which was deliberately inoculated, and Debaryomyces hansenii were the most dominant taxa in casings. Several other fungi mainly belonging to Penicillium crustosum, Penicillium glabrum, Penicillium nordicum, Cladosporium spp., Candida sake, Candida zeylanoides and Yarrowia divulgata were also identified. The casing mycobiota was compared to that of the meat using a metataxonomic approach and a higher fungal diversity was observed in meat as compared to casings. Mycotoxins and penicillin G were monitored using QTOF LC-MS and only trace amounts of roquefortine C were detected in two batches. CONCLUSIONS The present study highlighted the diversity of Salame Piemonte mycobiota and the important contribution of autochthonous fungi to its diversity. The absence of mycotoxins and penicillin G confirmed the high hygienic quality of the studied product regarding fungal and mycotoxin contamination. SIGNIFICANCE AND IMPACT OF THE STUDY For the first time, this study provides insights about Salame Piemonte mycobiota, which together with the bacterial microbiota and Salame Piemonte process specifications, are responsible for the product organoleptic properties.
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Affiliation(s)
- I Franciosa
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Torino, Italy.,Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - M Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - I Ferrocino
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Torino, Italy
| | - M R Corvaglia
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Torino, Italy
| | - E Poirier
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - J-L Jany
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
| | - K Rantsiou
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Torino, Italy
| | - L Cocolin
- Dipartimento di Scienze Agrarie, Forestali e Alimentari, University of Torino, Torino, Italy
| | - J Mounier
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Univ Brest, Plouzané, France
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Indigenous Microbiota to Leverage Traditional Dry Sausage Production. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2021; 2021:6696856. [PMID: 33604370 PMCID: PMC7868150 DOI: 10.1155/2021/6696856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 01/19/2021] [Indexed: 12/24/2022]
Abstract
The main issue addressed in this review is the need for innovation in the artisanal production of dry fermented sausages—leveraging rather than discarding tradition, together with some practical strategies available to achieve it. Throughout the text, emphasis is placed on the autochthonous microbiota responsible for the identity and unique sensory characteristics of these products. The available strategies to introduce innovation in this manufacturing process rely on metabolic flexibility of microbial strains. In this sense, this review evaluates the application of several tools aimed at improving the quality and safety of artisanal dry fermented sausages focusing on the microbial community role. The most studied alternatives to enhance dry sausage production comprise the use of autochthonous starter cultures—including functional and/or probiotic strains, the production of bacteriocins, and the generation of bioactive peptides, which have been thoroughly covered herein. The purpose of this work is to review recent research about novel different strategies available for food technologists to improve safety and quality in the manufacture of dry fermented sausages. Additional support strategies—quality product registers and innovation through tradition—have been suggested as complementary actions towards a successful introduction of indigenous microbial communities into traditional dry sausage production.
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Effect of Debaryomyces hansenii and the antifungal PgAFP protein on Alternaria spp. growth, toxin production, and RHO1 gene expression in a tomato-based medium. Food Microbiol 2021; 97:103741. [PMID: 33653520 DOI: 10.1016/j.fm.2021.103741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/28/2020] [Accepted: 01/11/2021] [Indexed: 11/20/2022]
Abstract
Tomato fruit is susceptible to Alternaria spp. spoilage, which poses a health risk due to their mycotoxin production. Biopreservation relies on the use of whole microorganisms or their metabolites to manage spoilage microorganisms including filamentous fungi. However, the use of treatments at fungistatic level might activate intracellular pathways, which can cause an increment in mycotoxin accumulation. The objective of this work was to evaluate the effect of two strains of Debaryomyces hansenii and the antifungal protein PgAFP at 10 and 40 μg/mL. Both growth and production of two of the most common mycotoxins (tenuazonic acid and alternariol monomethyl ether) by Alternaria tenuissima sp.-grp. and Alternaria arborescens sp.-grp. on a tomato-based matrix, were analysed at 12 °C. Additionally, the impact of these biocontrol agents on the stress-related RHO1 gene expression was assessed. All treatments reduced mycotoxin accumulation (from 27 to 92% of inhibition). Their mode of action against Alternaria spp. in tomato seems unrelated to damages to fungal cell wall integrity at the genomic level. Therefore, the two D. hansenii strains (CECT 10352 and CECT 10353) and the antifungal protein PgAFP at 10 μg/mL are suggested as biocontrol strategies in tomato fruit at postharvest stage.
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Álvarez M, Andrade MJ, García C, Rondán JJ, Núñez F. Effects of Preservative Agents on Quality Attributes of Dry-Cured Fermented Sausages. Foods 2020; 9:E1505. [PMID: 33096605 PMCID: PMC7589790 DOI: 10.3390/foods9101505] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 12/21/2022] Open
Abstract
Enterococcus faecium SE920, Debaryomyces hansenii FHSCC 253H, Penicillium chrysogenum CECT 20922, producer of the antifungal protein PgAFP, and this protein itself have previously been proposed to control toxigenic molds in dry-cured meat products. However, their effects on the usual microbial population, and the sensory characteristics of these foods, have not yet been evaluated. The aim of this study was to assess the viability of the inoculation of these protective cultures, and their impact on the quality of dry-cured fermented sausages. These microorganisms were co-inoculated with a native desirable population (Penicillium nalgiovense, P. chrysogenum, D. hansenii, and Staphylococcus vitulinus) in a dry-cured fermented sausage (salchichón)-based medium in the presence and absence of PgAFP. Macroscopically, the biocontrol candidates did not produce relevant changes in the growth of the native population, enabling their coexistence. However, PgAFP causes the alteration of the hyphae structure in desirable molds. Thus, PgAFP was discarded for use on the surface of raw dry-cured fermented sausages (salchichón) in the pilot plant. The used biocontrol agents did not negatively affect the physico-chemical parameters of the dry-cured fermented sausages (salchichón) after ripening, which showed the typical volatile profile and odor. Thus, the application of E. faecium SE920, D. hansenii FHSCC 253H, and P. chrysogenum CECT 20922 as protective cultures against toxigenic molds during the ripening of dry-cured fermented sausages does not modify their typical sensorial quality.
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Affiliation(s)
- Micaela Álvarez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain; (M.Á.); (J.J.R.); (F.N.)
| | - María J. Andrade
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain; (M.Á.); (J.J.R.); (F.N.)
| | - Carmen García
- Food Technology, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain;
| | - Juan J. Rondán
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain; (M.Á.); (J.J.R.); (F.N.)
| | - Félix Núñez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003 Cáceres, Spain; (M.Á.); (J.J.R.); (F.N.)
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Belleggia L, Milanović V, Ferrocino I, Cocolin L, Haouet MN, Scuota S, Maoloni A, Garofalo C, Cardinali F, Aquilanti L, Mozzon M, Foligni R, Pasquini M, Trombetta MF, Clementi F, Osimani A. Is there any still undisclosed biodiversity in Ciauscolo salami? A new glance into the microbiota of an artisan production as revealed by high-throughput sequencing. Meat Sci 2020; 165:108128. [DOI: 10.1016/j.meatsci.2020.108128] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/21/2022]
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Cebrián E, Núñez F, Gálvez FJ, Delgado J, Bermúdez E, Rodríguez M. Selection and Evaluation of Staphylococcus xylosus as a Biocontrol Agent against Toxigenic Moulds in a Dry-Cured Ham Model System. Microorganisms 2020; 8:E793. [PMID: 32466433 PMCID: PMC7356353 DOI: 10.3390/microorganisms8060793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/16/2020] [Accepted: 05/22/2020] [Indexed: 11/23/2022] Open
Abstract
Toxigenic moulds can develop on the surface of dry-cured meat products during ripening due to their ecological conditions, which constitutes a risk for consumers. A promising strategy to control this hazard is the use of antifungal microorganisms usually found in these foods. However, to date, the effectiveness of gram-positive catalase-positive cocci (GCC+) has not been explored. The aim of this work was to select GCC+ isolates with antifungal activity to study its effectiveness in a dry-cured ham model system at the environmental conditions reached during the ripening. Forty-five strains of GCC+ were evaluated and the isolate Staphylococcus xylosus Sx8 was selected to assess its efficacy at two different concentrations (106 and 104 cfu/mL) against Penicillium nordicum, Aspergillus flavus, Aspergillus parasiticus, and Penicillium griseofulvum at 15, 20, and 25 °C. The results showed that the inoculation of 106 cfu/mL of S. xylosus completely inhibited the growth of most fungi. In addition, in the presence of this strain at 104 cfu/mL, a significant reduction in fungal growth and mycotoxins production was observed at the three temperatures studied. In conclusion, S. xylosus Sx8 possesses great potential as a biological agent to control toxigenic moulds in dry-cured meat products.
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Affiliation(s)
| | | | | | | | | | - Mar Rodríguez
- Food Hygiene and Safety, Meat and Meat Products Research Institute, Faculty of Veterinary Science, University of Extremadura, 10003 Cáceres, Spain; (E.C.); (F.N.); (F.J.G.); (J.D.); (E.B.)
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Competitiveness of three biocontrol candidates against ochratoxigenic Penicillium nordicum under dry-cured meat environmental and nutritional conditions. Fungal Biol 2020; 125:134-142. [PMID: 33518203 DOI: 10.1016/j.funbio.2020.03.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 03/05/2020] [Accepted: 03/12/2020] [Indexed: 12/27/2022]
Abstract
The environmental conditions during the ripening of dry-cured meats and their nutritional composition promote the colonisation of their surface by Penicillium spp., including P. nordicum producer of ochratoxin A (OTA). The objective of this work was to study the competitiveness of three potential biocontrol candidates (Debaryomyces hansenii FHSCC 253H, Enterococcus faecium SE920 and Penicillium chrysogenum CECT, 20922) against the ochratoxigenic P. nordicum FHSCC4 under environmental and nutritional conditions simulating the ripening of dry-cured meat products. For this, the nutritional utilisation pattern, niche overlap index (NOI), interactions by dual-culture assays and OTA production were determined. The number of carbon sources (CSs) metabolised depended on the microorganism and the interacting water activity (aw) x temperature conditions. The number of CSs utilised by both filamentous fungi was quite similar and higher than those utilised by D. hansenii and E. faecium. The yeast isolate metabolised a number of CSs much larger than the bacterium. The NOI values showed that, in general, P. nordicum nutritionally dominated E. faecium and D. hansenii regardless of the environmental conditions evaluated. The relationship between the toxigenic and non-toxigenic fungal isolates depended on the aw x temperature combinations, although in none of the conditions a dominance of P. nordicum was observed. According to the interaction assays, both D. hansenii and P. chrysogenum decreased the growth of P. nordicum. The effect of D. hansenii could be attributed to the production of some extra-cellular compounds, while the action of P. chrysogenum is likely related to nutritional competition. In addition, both P. chrysogenum and D. hansenii reduced the OTA levels produced by P. nordicum. The effect of the yeast was more pronounced decreasing the concentration of OTA at quantities lower than the limit established by the Italian legislation. Therefore, P. chrysogenum and D. hansenii can be suggested as biocontrol candidates in the manufacture of dry-cured meat products.
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Huang C, Qian Y, Viana T, Siegumfeldt H, Arneborg N, Larsen N, Jespersen L. The quorum-sensing molecule 2-phenylethanol impaired conidial germination, hyphal membrane integrity and growth of Penicillium expansum and Penicillium nordicum. J Appl Microbiol 2020; 129:278-286. [PMID: 32097516 DOI: 10.1111/jam.14621] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/06/2020] [Accepted: 02/23/2020] [Indexed: 01/23/2023]
Abstract
AIMS The aim of the study was to investigate the antifungal effects of a quorum sensing-molecule, 2-phenylethanol, against the food spoilage moulds Penicillium expansum and Penicillium nordicum. METHODS AND RESULTS Conidial germination of the tested Penicillium spp. (three strains in total) were inhibited by treatments with 2-phenylethanol in a concentration-dependent manner. Germinated conidia was significantly reduced from 4·4-16·7% at 7·5 mmol l-1 and completely inhibited at 15 mmol l-1 2-phenylethanol. Integrity of conidial cell membranes was unaffected by 2-phenylethanol resulting in reversible inhibition pattern of germination. In contrast, membrane permeability of actively growing hyphae was severely compromised, showing 63·5 - 75·7% membrane damage upon treatment with 15 mmol l-1 2-phenylethanol. The overall inhibitory effect of 2-phenylethanol on colony development and growth of P. expansum and P. nordicum was additionally confirmed. CONCLUSIONS 2-phenylethanol inhibits conidial germination and growth of P. expansum and P. nordicum in a nonlethal, reversible and concentration-dependent manner. SIGNIFICANCE AND IMPACT OF THE STUDY The study indicates that 2-phenylethanol can find potential application as an antifungal agent for biological control of moulds in the food industry.
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Affiliation(s)
- C Huang
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Y Qian
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - T Viana
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - H Siegumfeldt
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - N Arneborg
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - N Larsen
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | - L Jespersen
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
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Rivas EM, Wrent P, de Silóniz MI. Rapid PCR Method for the Selection of 1,3-Pentadiene Non-Producing Debaryomyces hansenii Yeast Strains. Foods 2020; 9:foods9020162. [PMID: 32046208 PMCID: PMC7074485 DOI: 10.3390/foods9020162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 11/20/2022] Open
Abstract
To prevent microbial growth and its consequences, preservatives such as sorbic acid or its salts, commonly known as sorbates, are added to foods. However, some moulds and yeasts are capable of decarboxylating sorbates and producing 1,3-pentadiene. This is a volatile compound with an unpleasant “petroleum-like “odour, which causes consumer rejection of the contaminated products. In this work, we studied the production of 1,3-pentadiene in 91 strains of the yeast Debaryomyces hansenii, and we found that nearly 96% were able to produce this compound. The sequence of the FDC1Dh gene was analysed showing differences between 1,3-pentadiene producer (P) and non-producer (NP) strains. A specific PCR assay with degenerated primers based on the gene sequence was developed to discern NP and P strains. It was tested on D. hansenii strains and on some physiologically related species frequently isolated from foods, such as D. fabrii, D. subglobosus and Meyerozyma guillermondii. This method could be applied for the selection of NP D. hansenii strains, useful in biotechnological food production and as a biocontrol agent.
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Affiliation(s)
- Eva-María Rivas
- Department of Genetics, Physiology and Microbiology. Biological Sciences Faculty. Complutense University of Madrid. José Antonio Nováis, 12. 28040 Madrid, Spain; (E.-M.R.); (P.W.)
- CEI Campus Moncloa, UCM-UPM, 28040 Madrid, Spain
| | - Petra Wrent
- Department of Genetics, Physiology and Microbiology. Biological Sciences Faculty. Complutense University of Madrid. José Antonio Nováis, 12. 28040 Madrid, Spain; (E.-M.R.); (P.W.)
- CEI Campus Moncloa, UCM-UPM, 28040 Madrid, Spain
| | - María-Isabel de Silóniz
- Department of Genetics, Physiology and Microbiology. Biological Sciences Faculty. Complutense University of Madrid. José Antonio Nováis, 12. 28040 Madrid, Spain; (E.-M.R.); (P.W.)
- CEI Campus Moncloa, UCM-UPM, 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-91-3944962
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Meftah S, Abid S, Dias T, Rodrigues P. Mechanisms underlying the effect of commercial starter cultures and a native yeast on ochratoxin A production in meat products. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Efficacy of the Combined Protective Cultures of Penicillium chrysogenum and Debaryomyces hansenii for the Control of Ochratoxin A Hazards in Dry-Cured Ham. Toxins (Basel) 2019; 11:toxins11120710. [PMID: 31817538 PMCID: PMC6950578 DOI: 10.3390/toxins11120710] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/28/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
The ecological conditions during the ripening of dry-cured ham favour the development of moulds on its surface, being frequently the presence of Penicillium nordicum, a producer of ochratoxin A (OTA). Biocontrol using moulds and yeasts usually found in dry-cured ham is a promising strategy to minimize this hazard. The aim of this work is to evaluate the effect of previously selected Debaryomyces hansenii and Penicillium chrysogenum strains on growth, OTA production, and relative expression of genes involved in the OTA biosynthesis by P. nordicum. P. nordicum was inoculated against the protective cultures individually and combined on dry-cured ham for 21 days at 20 °C. None of the treatments reduced the growth of P. nordicum, but all of them decreased OTA concentration. The lower production of OTA could be related to significant repression of the relative expression of otapksPN and otanpsPN genes of P. nordicum. The efficacy of the combined protective cultures was tested in 24 dry-cured hams in industrial ripening (an 8 month-long production). OTA was detected in nine of the 12 dry-cured hams in the batch inoculated only with P. nordicum. However, in the batch inoculated with both P. nordicum and the combined protective culture, a considerable reduction of OTA contamination was observed. In conclusion, although the efficacy of individual use P. chrysogenum is great, the combination with D. hansenii enhances its antifungal activity and could be proposed as a mixed protective culture to control the hazard of the presence of OTA in dry-cured ham.
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Mewa-Ngongang M, du Plessis HW, Ntwampe SKO, Chidi BS, Hutchinson UF, Mekuto L, Jolly NP. The Use of Candida pyralidae and Pichia kluyveri to Control Spoilage Microorganisms of Raw Fruits Used for Beverage Production. Foods 2019; 8:foods8100454. [PMID: 31590435 PMCID: PMC6835701 DOI: 10.3390/foods8100454] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 11/25/2022] Open
Abstract
Undesired fermentation of fruit-derived beverages by fungal, yeast and bacterial spoilage organisms are among the major contributors of product losses in the food industry. As an alternative to chemical preservatives, the use of Candida pyralidae and Pichia kluyveri was assessed for antimicrobial activity against several yeasts (Dekkera bruxellensis, Dekkera anomala, Zygosaccharomyces bailii) and fungi (Botrytis cinerea, Colletotrichum acutatum and Rhizopus stolonifer) associated with spoilage of fruit and fruit-derived beverages. The antagonistic properties of C. pyralidae and P. kluyveri were evaluated on cheap solidified medium (grape pomace extract) as well as on fruits (grapes and apples). Volatile organic compounds (VOCs) from C. pyralidae and P. kluyveri deemed to have antimicrobial activity were identified by gas chromatography-mass spectrometry (GC-MS). A cell suspension of C. pyralidae and P. kluyveri showed growth inhibition activity against all spoilage microorganisms studied. Direct contact and extracellular VOCs were two of the mechanisms of inhibition. Twenty-five VOCs belonging to the categories of alcohols, organic acids and esters were identified as potential sources for the biocontrol activity observed in this study. This study reports, for the first time, the ability of C. pyralidae to inhibit fungal growth and also for P. kluyveri to show growth inhibition activity against spoilage organisms (n = 6) in a single study.
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Affiliation(s)
- Maxwell Mewa-Ngongang
- PostHarvest and Agro-Processing Technologies, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa; (H.W.d.P.); (B.S.C.); (U.F.H.); (N.P.J.)
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa; (S.K.O.N.); (L.M.)
- Correspondence: ; Tel.: +27-(0)-21-809-3442
| | - Heinrich W. du Plessis
- PostHarvest and Agro-Processing Technologies, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa; (H.W.d.P.); (B.S.C.); (U.F.H.); (N.P.J.)
| | - Seteno Karabo Obed Ntwampe
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa; (S.K.O.N.); (L.M.)
- Department of Chemical Engineering, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa
| | - Boredi Silas Chidi
- PostHarvest and Agro-Processing Technologies, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa; (H.W.d.P.); (B.S.C.); (U.F.H.); (N.P.J.)
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa; (S.K.O.N.); (L.M.)
| | - Ucrecia Faith Hutchinson
- PostHarvest and Agro-Processing Technologies, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa; (H.W.d.P.); (B.S.C.); (U.F.H.); (N.P.J.)
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa; (S.K.O.N.); (L.M.)
| | - Lukhanyo Mekuto
- Bioresource Engineering Research Group (BioERG), Department of Biotechnology, Cape Peninsula University of Technology, P.O. Box 652, Cape Town 8000, South Africa; (S.K.O.N.); (L.M.)
- Department of Chemical Engineering, University of Johannesburg, PO Box 17011, Johannesburg 2028, Gauteng, South Africa
| | - Neil Paul Jolly
- PostHarvest and Agro-Processing Technologies, ARC Infruitec-Nietvoorbij (The Fruit, Vine and Wine Institute of the Agricultural Research Council), Private Bag X5026, Stellenbosch 7599, South Africa; (H.W.d.P.); (B.S.C.); (U.F.H.); (N.P.J.)
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Delgado J, Núñez F, Asensio MA, Owens RA. Quantitative proteomic profiling of ochratoxin A repression in Penicillium nordicum by protective cultures. Int J Food Microbiol 2019; 305:108243. [DOI: 10.1016/j.ijfoodmicro.2019.108243] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/26/2019] [Accepted: 05/31/2019] [Indexed: 12/15/2022]
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Johansen PG, Owusu-Kwarteng J, Parkouda C, Padonou SW, Jespersen L. Occurrence and Importance of Yeasts in Indigenous Fermented Food and Beverages Produced in Sub-Saharan Africa. Front Microbiol 2019; 10:1789. [PMID: 31447811 PMCID: PMC6691171 DOI: 10.3389/fmicb.2019.01789] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 07/19/2019] [Indexed: 12/28/2022] Open
Abstract
Indigenous fermented food and beverages represent a valuable cultural heritage in sub-Saharan Africa, having one of the richest selections of fermented food products in the world. In many of these indigenous spontaneously fermented food and beverages, yeasts are of significant importance. Several factors including raw materials, processing methods, hygienic conditions as well as the interactions between yeasts and other commensal microorganisms have been shown to influence yeast species diversity and successions. Both at species and strain levels, successions take place due to the continuous change in intrinsic and extrinsic growth factors. The selection pressure from the microbial stress factors leads to niche adaptation and both yeast species and strains with traits deviating from those generally acknowledged in current taxonomic keys, have been isolated from indigenous sub-Saharan African fermented food products. Yeasts are important for flavor development, impact shelf life, and nutritional value and do, in some cases, even provide host-beneficial effects. In order to sustain and upgrade these traditional fermented products, it is quite important to obtain detailed knowledge on the microorganisms involved in the fermentations, their growth requirements and interactions. While other publications have reported on the occurrence of prokaryotes in spontaneously fermented sub-Saharan food and beverages, the present review focuses on yeasts considering their current taxonomic position, relative occurrence and successions, interactions with other commensal microorganisms as well as beneficial effects and importance in human diet. Additionally, the risk of opportunistic yeasts is discussed.
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Affiliation(s)
| | - James Owusu-Kwarteng
- Department of Food Science and Technology, University of Energy and Natural Resources, Sunyani, Ghana
| | - Charles Parkouda
- Département Technologie Alimentaire, IRSAT/CNRST, Ouagadougou, Burkina Faso
| | | | - Lene Jespersen
- Department of Food Science, University of Copenhagen, Copenhagen, Denmark
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Development of antifungal ingredients for dairy products: From in vitro screening to pilot scale application. Food Microbiol 2019; 81:97-107. [DOI: 10.1016/j.fm.2018.11.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 07/02/2018] [Accepted: 11/13/2018] [Indexed: 12/15/2022]
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Ferraz P, Cássio F, Lucas C. Potential of Yeasts as Biocontrol Agents of the Phytopathogen Causing Cacao Witches' Broom Disease: Is Microbial Warfare a Solution? Front Microbiol 2019; 10:1766. [PMID: 31417539 PMCID: PMC6685038 DOI: 10.3389/fmicb.2019.01766] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 07/17/2019] [Indexed: 11/13/2022] Open
Abstract
Plant diseases caused by fungal pathogens are responsible for major crop losses worldwide, with a significant socio-economic impact on the life of millions of people who depend on agriculture-exclusive economy. This is the case of the Witches’ Broom Disease (WBD) affecting cacao plant and fruit in South and Central America. The severity and extent of this disease is prospected to impact the growing global chocolate market in a few decades. WBD is caused by the basidiomycete fungus Moniliophthora perniciosa. The methods used to contain the fungus mainly rely on chemical fungicides, such as copper-based compounds or azoles. Not only are these highly ineffective, but also their utilization is increasingly restricted by the cacao industry, in part because it promotes fungal resistance, in part related to consumers’ health concerns and environmental awareness. Therefore, the disease is being currently tentatively controlled through phytosanitary pruning, although the full removal of infected plant material is impossible and the fungus maintains persistent inoculum in the soil, or using an endophytic fungal parasite of Moniliophthora perniciosa which production is not sustainable. The growth of Moniliophthora perniciosa was reported as being antagonized in vitro by some yeasts, which suggests that they could be used as biological control agents, suppressing the fungus multiplication and containing its spread. Concurrently, some yeast-based products are used in the protection of fruits from postharvest fungal spoilage, and the extension of diverse food products shelf-life. These successful applications suggest that yeasts can be regarded a serious alternative also in the pre-harvest management of WBD and other fungal plant diseases. Yeasts’ GRAS (Generally Recognized as Safe) nature adds to their appropriateness for field application, not raising major ecological concerns as do the present more aggressive approaches. Importantly, mitigating WBD, in a sustainable manner, would predictably have a high socioeconomic impact, contributing to diminish poverty in the cacao-producing rural communities severely affected by the disease. This review discusses the importance/advantages and the challenges that such a strategy would have for WBD containment, and presents the available information on the molecular and cellular mechanisms underlying fungi antagonism by yeasts.
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Affiliation(s)
- Pedro Ferraz
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Fernanda Cássio
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Cândida Lucas
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
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Murgia MA, Marongiu A, Aponte M, Blaiotta G, Deiana P, Mangia NP. Impact of a selected Debaryomyces hansenii strain's inoculation on the quality of Sardinian fermented sausages. Food Res Int 2019; 121:144-150. [DOI: 10.1016/j.foodres.2019.03.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 03/14/2019] [Accepted: 03/17/2019] [Indexed: 10/27/2022]
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Wang X, Wang S, Zhao H. Unraveling microbial community diversity and succession of Chinese Sichuan sausages during spontaneous fermentation by high-throughput sequencing. Journal of Food Science and Technology 2019; 56:3254-3263. [PMID: 31274892 DOI: 10.1007/s13197-019-03781-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/07/2019] [Accepted: 04/12/2019] [Indexed: 11/25/2022]
Abstract
The microbial community diversity and succession of Chinese Sichuan sausages during the spontaneous fermentation were demonstrated using high-throughput sequencing technology. The bacterial diversity was abundant and the succession of bacterial community along the direction of Lactobacillus spp. increased and Weissella spp. decreased. While fungal diversity was single and trace fungal population was detected. The core functional microbiota were lactic acid bacteria, including Lactobacillus spp., Weissella spp. and Pediococcus spp. In initial fermentation, Weissella spp. was the dominant bacteria and its relative abundance was 49.84%, but then its relative abundance decreased to 11.96% during fermentation before recovering to 26.74% at the end of fermentation. Meanwhile, Lactobacillus spp. rose from 24.70 to 55.74% and became the dominant genus. Moreover, Pediococcus spp. increased from 0.06 to 18.05% on day 20 but then decreased to 1.89% on day 30. These results revealed that the primary microorganisms contributing to spontaneous fermentation of Chinese Sichuan sausages were bacteria, while eukaryotic microorganisms such as yeast scarcely contributed to fermentation.
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Affiliation(s)
- Xinhui Wang
- 1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041 Sichuan Province China.,2Meat-Processing Application Key Laboratory of Sichuan Province, Chengdu University, Chengdu, 610106 Sichuan Province China
| | - Songhu Wang
- 1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041 Sichuan Province China
| | - Hai Zhao
- 1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041 Sichuan Province China
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Peromingo B, Andrade MJ, Delgado J, Sánchez-Montero L, Núñez F. Biocontrol of aflatoxigenic Aspergillus parasiticus by native Debaryomyces hansenii in dry-cured meat products. Food Microbiol 2019; 82:269-276. [PMID: 31027783 DOI: 10.1016/j.fm.2019.01.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 12/21/2018] [Accepted: 01/18/2019] [Indexed: 12/15/2022]
Abstract
Dry-cured meat products, such as dry-cured ham or dry-fermented sausages, are characterized by their particular ripening process, where a mould population grows on their surface. Some of these moulds are hazardous to the consumers because of their ability to produce mycotoxins including aflatoxins (AFs). The use of native yeasts could be considered a potential strategy for controlling the presence of AFs in dry-cured meat products. The aim of this work was to evaluate the antagonistic activity of two native Debaryomyces hansenii strains on the relative growth rate and the AFs production in Aspergillus parasiticus. Both D. hansenii strains significantly reduced the growth rates of A. parasiticus when grown in a meat-model system at different water activity (aw) conditions. The presence of D. hansenii strains caused a stimulation of AFs production by A. parasiticus at 0.99 aw. However, at 0.92 aw the yeasts significantly reduced the AFs concentration in the meat-model system. The relative expression levels of the aflR and aflS genes involved in the AFs biosynthetic pathway were also repressed at 0.92 aw in the presence of both D. hansenii strains. These satisfactory results were confirmed in dry-cured ham and dry-fermented sausage slices inoculated with A. parasiticus, since both D. hansenii strains significantly reduced AFs amounts in these matrices. Therefore, both tested D. hansenii strains could be proposed as biocontrol agents within a HACCP framework to minimize the hazard associated with the presence of AFs in dry-cured meat products.
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Affiliation(s)
- Belén Peromingo
- Food Hygiene and Safety, Meat and Meat Products Research Institute. Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003, Cáceres, Spain
| | - María J Andrade
- Food Hygiene and Safety, Meat and Meat Products Research Institute. Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003, Cáceres, Spain
| | - Josué Delgado
- Food Hygiene and Safety, Meat and Meat Products Research Institute. Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003, Cáceres, Spain
| | - Lourdes Sánchez-Montero
- Food Hygiene and Safety, Meat and Meat Products Research Institute. Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003, Cáceres, Spain
| | - Félix Núñez
- Food Hygiene and Safety, Meat and Meat Products Research Institute. Faculty of Veterinary Science, University of Extremadura, Avda. de las Ciencias, s/n, 10003, Cáceres, Spain.
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Andrade MJ, Peromingo B, Rodríguez M, Rodríguez A. Effect of cured meat product ingredients on the Penicillium verrucosum growth and ochratoxin A production. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.09.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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