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Valle M, Nguyen Van Long N, Jany JL, Koullen L, Rigalma K, Vasseur V, Huchet V, Coroller L. Impact of sodium chloride and carbon dioxide on conidial germination and radial growth of Penicillium camemberti. Food Microbiol 2023; 115:104309. [PMID: 37567615 DOI: 10.1016/j.fm.2023.104309] [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: 02/22/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 08/13/2023]
Abstract
Penicillium camemberti is a domesticated species adapted to the dairy environment, which is used as adjunct cultures to ripen soft cheeses. A recent population genomics analysis on P. camemberti revealed that P. camemberti is a clonal lineage with two varieties almost identical genetically but with contrasting phenotypes in terms of growth, color, mycotoxin production and inhibition of contaminants. P. camemberti variety camemberti is found on Camembert and Brie cheeses, and P. camemberti variety caseifulvum is mainly found on other cheeses like Saint-Marcellin and Rigotte de Condrieu. This study aimed to evaluate the impact of water activity (aw) reduced by sodium chloride (NaCl) and the increase of carbon dioxide (CO2) partial pressure, on conidial germination and growth of two varieties of P. camemberti: var. Camemberti and var. Caseifulvum. Mathematical models were used to describe the responses of P. camemberti strains to both abiotic factors. The results showed that these genetically distant strains had similar responses to increase in NaCl and CO2 partial pressure. The estimated cardinal values were very close between the strains although all estimated cardinal values were significantly different (Likelihood ratio tests, pvalue = 0.05%). These results suggest that intraspecific variability could be more exacerbated during fungal growth compared with conidial germination, especially in terms of macroscopic morphology. Indeed, var. Caseifulvum seemed to be more sensitive to an increase of CO2 partial pressure, as shown by the fungal morphology, with the occurrence of irregular outgrowths, while the morphology of var. Camemberti remains circular. These data could make it possible to improve the control of fungal development as a function of salt and carbon dioxide partial pressure. These abiotic factors could serve as technological barriers to prevent spoilage and increase the shelf life of cheeses. The present data will allow more precise predictions of fungal proliferation as a function of salt and carbon dioxide partial pressure, which are significant technological hurdles in cheese production.
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Affiliation(s)
- Marion Valle
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29000, Quimper, France; ADRIA Développement, UMT ACTIA 19.03 ALTER'IX, Quimper, France
| | | | - Jean-Luc Jany
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29280, Plouzané, France
| | - Loona Koullen
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29000, Quimper, France
| | - Karim Rigalma
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29280, Plouzané, France
| | - Valérie Vasseur
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29280, Plouzané, France
| | | | - Louis Coroller
- Univ Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, UMT ACTIA 19.03 ALTER'IX, F-29000, Quimper, France.
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Aragão MO, Evangelista SR, Passamani FRF, Guimarães JPM, Abreu LR, Batista LR. Fungal community and physicochemical profiles of ripened cheeses from the Canastra of Minas Gerais, Brazil. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4685-4694. [PMID: 36276518 PMCID: PMC9579240 DOI: 10.1007/s13197-022-05548-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/18/2022] [Accepted: 07/02/2022] [Indexed: 06/16/2023]
Abstract
Canastra's Minas artisanal cheese [QMA (Minas artisanal cheese)] is a protected geographical indication traditional food. The influence of fungi on the cheese ripening process is of great importance. This study aimed to apply culture-dependent and -independent methods to determine the mycobiota of QMA produced in the Canastra region, as well as to determine its physicochemical characteristics. Illumina-based amplicon sequencing and matrix-assisted laser desorption ionization time-of-flight mass spectrometry were the culture-independent methods used. The physicochemical analysis results showed that the QMA has a moisture content ranging 18.4-28.2%, fat content ranging 20.5-40%, sodium chloride percentage of approximately 0.9%, and pH ranging 5.2-5.5. The population of fungi ranged between 6.3 and 8 log colony-forming unit/g. Fusarium spp., Geotrichum candidum, Paecilomyces spp., Trichosporon coremiiforme, Candida catenulata, Aspergillus spp., Trichosporon japonicum, Aspergillus oryzae, Kluyveromyces spp., Torulaspora spp., and Debaryomyces spp. were the most prevalent fungi. The methods used to evaluate the mycobiota provide a better understanding of which species are present in the final product and eventually contribute to the characteristics of QMA. Geotrichum candidum and C. catenulata were identified as promising species for future studies on product quality.
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Affiliation(s)
- M. O. Aragão
- Food Sciences Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
| | - S. R. Evangelista
- Biology Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
| | - F. R. F. Passamani
- Biology Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
| | - J. P. M. Guimarães
- Food Sciences Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
| | - L. R. Abreu
- Food Sciences Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
| | - L. R. Batista
- Food Sciences Department, Federal University of Lavras, P.O. Box: 3037, Lavras, MG 37200-900 Brazil
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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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Casquete R, Benito MJ, Aranda E, Martín A, Hernández A, Córdoba MDG. Cyclopiazonic acid gene expression as strategy to minimizing mycotoxin contamination in cheese. Fungal Biol 2019; 125:160-165. [PMID: 33518206 DOI: 10.1016/j.funbio.2019.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 11/16/2022]
Abstract
Expression of genes associated with cyclopiazonic acid (CPA) biosynthesis by Penicillium strains in a cheese-based medium has not been previously studied. To control CPA biosynthesis, it would be useful to understand the changes in gene expression during cheese production and relate them to toxin production. The objective was to evaluate the influence of pH, aw, and temperature on expression of dmaT, which encodes the enzyme dimethylallyl tryptophan synthase involved in the biosynthesis of CPA. We assayed three Penicillium strains, Penicillium commune CBS311 and CBS341 and Penicillium camemberti CBS273, using reverse transcription real-time PCR. Our results showed that the expression patterns of the gene were influenced by strain and environmental conditions. The highest expression for the P. commune strains was observed at pH 6.0, 0.95 aw, at 25 or 30 °C, depending on the strain. In contrast, P. camemberti CBS273 showed a lower dmaT expression with a maximum at 25 °C, pH 5.0 and 0.95 aw. Correlation analysis indicated that the three toxigenic strains showed a strong correlation between the relative expression of the dmaT gene and concentration of CPA under conditions simulating cheese ripening. This method could be used to control CPA production in cheese by detection of dmaT expression.
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Affiliation(s)
- Rocío Casquete
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain
| | - María José Benito
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain.
| | - Emilio Aranda
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain
| | - Alberto Martín
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain
| | - Alejandro Hernández
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain
| | - María de Guía Córdoba
- Nutrición y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avd. Adolfo Suárez s/n, 06007 Badajoz, Spain; Instituto Universitario de Investigación en Recursos Agrarios (INURA), Universidad de Extremadura, Avd. De la Investigación, 06006 Badajoz, Spain
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Oliveira G, Evangelista SR, Passamani FRF, Santiago WD, Cardoso MDG, Batista LR. Influence of temperature and water activity on Ochratoxin A production by Aspergillus strain in coffee south of Minas Gerais/Brazil. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.12.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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