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Busetta G, Garofalo G, Claps S, Sardina MT, Franciosi E, Alfonzo A, Francesca N, Moschetti G, Settanni L, Gaglio R. The wooden shelf surface and cheese rind mutually exchange microbiota during the traditional ripening process. Int J Food Microbiol 2024; 409:110478. [PMID: 37948980 DOI: 10.1016/j.ijfoodmicro.2023.110478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
The rind acts as a protective barrier for internally-bacterial ripened cheeses. Unlike surface-inoculated smear cheeses, centripetal maturation is not assumed to occur in these cheeses. This research was aimed to evaluate the microbial diversity of the wooden shelves used for the ripening of Protected Denomination of Origin (PDO) Pecorino di Filiano and Protected Geographical Indication (PGI) Canestrato di Moliterno cheeses. The microorganisms associated with the rind of these cheeses were also investigated. Both wooden shelf surfaces and cheese rinds were sampled by brushing method to collect their biofilms. Wooden shelves showed levels of total mesophilic microorganisms (TMM) between 5.6 and 7.2 log CFU/cm2, while cheese rinds between 6.1 and 7.8 log CFU/cm2. The major dairy pathogens (Salmonella spp., Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus) were never detected, while mesophilic and thermophilic bacteria dominated the surfaces of all wooden shelves and cheese rinds. LAB community was represented by Enterococcus spp., Leuconostoc spp., and Marinilactibacillus spp. Among yeasts, Debaryomyces spp., Candida spp., were identified, while Aspergillus spp., and Penicillium spp., dominated the community of filamentous fungi. MiSeq Illumina analysis identified 15 phyla, 13 classes, 28 orders, 54 families, and 56 genera among bacteria. Staphylococcus spp. was identified from all wooden surfaces, with a maximum abundance of 71 %. Brevibacterium, Corynebacterium and halophilic bacteria were detected in almost all samples. Regarding fungi, wooden shelves mainly hosted Aspergillus, Penicillium and Debaryomyces hansenii, while cheese rinds especially Penicillium and D. hansenii. Alpha diversity confirmed a strict correlation between the microbiota of wooden shelves and that of cheese rinds for the majority of factories. This study confirmed that the wooden shelves used for cheese ripening are microbiologically active and represent safe systems. Furthermore, the results of this work clarified the transfer flow between wooden shelves and PDO Pecorino di Filiano and PGI Canestrato di Moliterno cheese surfaces: smear-active microorganisms are mainly transferred from wooden shelves to cheese rind, which potentially contribute to the development of the final organoleptic characteristics; meanwhile, cheeses transfer LAB that are potentially involved in defining the safety aspects of the shelves.
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Affiliation(s)
- Gabriele Busetta
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Giuliana Garofalo
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Salvatore Claps
- CREA Research, Centre for Animal Production and Aquaculture, S.S. 7 Via Appia, Bella Muro, PZ 85051, Italy
| | - Maria Teresa Sardina
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Elena Franciosi
- Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38098 San Michele all'Adige, Italy
| | - Antonio Alfonzo
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Nicola Francesca
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Giancarlo Moschetti
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy.
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy
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2
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Macit E, Yücel N, Dertli E. The characterization of the non-starter lactic acid bacteria and yeast microbiota and the chemical and aromatic properties of traditionally produced Turkish White Cheese. Braz J Microbiol 2023; 54:2227-2241. [PMID: 37624476 PMCID: PMC10484850 DOI: 10.1007/s42770-023-01098-9] [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: 03/31/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023] Open
Abstract
Turkish White Cheese is a brined (or pickled) cheese with a salty, acidic flavor and a soft or semi-hard texture. It is the most produced and consumed type of cheese in Turkey. The purpose of this study was to determine the non-starter lactic acid bacteria and yeast microbiota of traditionally produced Turkish White Cheese and analyze the chemical properties and the aroma profile of the cheese. The results of the study identified 27 distinct strains belonging to 14 the non-starter lactic acid bacteria species and 49 different strains belonging to 11 yeast species. Lactobacillus plantarum was found to be the dominant species among the lactic acid bacteria, while Candida zeylanoides was the dominant yeast species in the White Cheese samples. In addition, Kluyveromyces lactis and Debaryomyces hansenii were prominent yeast species in cheese samples. Turkish White Cheese samples had different aromatic properties. The study is highly significant as it anaylzed both non-starter lactic acid bacteria and yeast microbiota of traditionally produced Turkish White Cheese through molecular methods. It also determined and analyzed a number of chemical and aromatic properties of White Cheese.
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Affiliation(s)
- Emine Macit
- Atatürk University, Faculty of Tourism, Department of Gastronomy and Culinary Arts, 25240, Erzurum, Turkey.
| | - Nur Yücel
- Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, Turkey
| | - Enes Dertli
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, İstanbul, Turkey
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3
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Isolation and Characterization of Cryotolerant Yeasts from Fiano di Avellino Grapes Fermented at Low Temperatures. Foods 2023; 12:foods12030526. [PMID: 36766056 PMCID: PMC9914108 DOI: 10.3390/foods12030526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
A fermentation of Fiano di Avellino grape must was carried out at 9°C with the aim of selecting cryotolerant yeast strains and testing their fermentative performances and volatile production following molecular characterization. A total of 20 yeast cultures were isolated at different fermentation stages. Based on molecular identification and characterization, Metschnikowia (M.) pulcherrima, Hanseniaspora (H.) uvarum, Staremerella (St.) bacillaris, Saccharomyces (S.) cerevisiae, S. kudriavzevii, and S. paradoxus were found to be the yeast species dominating the fermentation. S. paradoxus has been rarely isolated in vineyards and never in the cellar environment. Moreover, in this study, S. kudriavzevii is detected for the first time in vine-wine environments. Both S. kudriavzevii and S. paradoxus co-occurred with S. cerevisiae when grapes were micro-fermented at low temperatures. The growth kinetics of the three species were greatly affected by the fermentation temperature. As a consequence, Fiano wines obtained with S. kudriavzevii and S. paradoxus significantly differed from those made by S. cerevisiae in terms of chemical and volatile composition.
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Microbial Dynamics of a Specialty Italian Raw Ewe's Milk Cheese Curdled with Extracts from Spontaneous and Cultivated Onopordum tauricum Willd. Microorganisms 2023; 11:microorganisms11010219. [PMID: 36677511 PMCID: PMC9863127 DOI: 10.3390/microorganisms11010219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/08/2023] [Accepted: 01/10/2023] [Indexed: 01/18/2023] Open
Abstract
Milk coagulants prepared by maceration of flowers harvested from both spontaneous and cultivated Onopordum tauricum Willd. and a commercially available coagulant obtained from Cynara cardunculus L. (control) were assayed for small-scale manufacturing of Caciofiore, an Italian specialty raw ewe's milk cheese produced in a family run dairy farm located in the Marche region (Central Italy). The microbiota of the three thistle-based milk coagulants and their effect on the microbial dynamics of raw milk cheeses during fermentation and maturation (from day 0 up until day 60) were investigated through a combined approach based on viable counting and Illumina DNA sequencing. In both the control and experimental cheeses, despite the slight differences emerged depending on the coagulant used, Lactococcus lactis and Debaryomyces hansenii were the prevalent species among bacteria and fungi, respectively. Moreover, raw ewe's milk was the main factor affecting the evolution of both the bacterial and fungal microbiota in all cheeses. The overall similarities between control and experimental cheeses herein analyzed supports the exploitation of Onopordum tauricum Willd. as an alternative milk coagulating agent for production of Caciofiore and, more in general, raw ewe's milk cheeses.
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Penland M, Pawtowski A, Pioli A, Maillard MB, Debaets S, Deutsch SM, Falentin H, Mounier J, Coton M. Brine salt concentration reduction and inoculation with autochthonous consortia: Impact on Protected Designation of Origin Nyons black table olive fermentations. Food Res Int 2022; 155:111069. [DOI: 10.1016/j.foodres.2022.111069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 11/04/2022]
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6
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Merchán AV, Ruiz-Moyano S, Vázquez Hernández M, Benito MJ, Aranda E, Rodríguez A, Martín A. Characterization of autochthonal yeasts isolated from Spanish soft raw ewe milk protected designation of origin cheeses for technological application. J Dairy Sci 2022; 105:2931-2947. [DOI: 10.3168/jds.2021-21368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/06/2021] [Indexed: 12/16/2022]
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Abstract
Yeasts constitute an important part of cheeses, and especially the artisanal ones. The current study reviews the occurrence of yeasts in different cheese varieties and the role of yeasts in cheesemaking process. The use of molecular methods for identification and strain typing has extended the knowledge for yeast diversity in cheeses. For the study of the occurrence of yeasts in different cheese types, seven categories are used, that is: 1) hard, 2) semi-hard, 3) soft, which includes soft pasta-filata and whey cheeses, 4) white brined cheeses, 5) mould surface ripened, 6) bacterial surface ripened cheeses, and 7) blue cheeses. For some cheese types, yeasts are the main microbial group, at least for some part of their ripening process, while for some other types, yeasts are absent. Differences between industrially manufactured cheeses and artisanal cheeses have specified. Artisanal cheeses possess a diverse assortment of yeast species, mainly belonging to the genera Candida, Clavisporalus, Cryptococcus, Debaryomyces, Geotrichum, Issatchenkia, Kazachstania, Kluyveromyces, Kodemaea, Pichia, Rhodotorula, Saccharomyces, Saturnispora, Torulaspora, Trichosporon, Yarrowia and ZygoSaccharomyces. The role of the yeasts for selected cheeses from the seven cheese categories is discussed.
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Affiliation(s)
- Thomas Bintsis
- Collaborating Teaching Staff at Hellenic Open University, Greece
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9
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Rocha R, Vaz Velho M, Santos J, Fernandes P. Serra da Estrela PDO Cheese Microbiome as Revealed by Next Generation Sequencing. Microorganisms 2021; 9:microorganisms9102007. [PMID: 34683326 PMCID: PMC8537266 DOI: 10.3390/microorganisms9102007] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 01/07/2023] Open
Abstract
Serra da Estrela PDO cheese is the oldest traditional cheese manufactured in Portugal. In this work, its microbiome as well as the main raw materials used in cheese production, raw ewes’ milk and thistle flowers (Cynara cardunculus L.), were characterized using next generation sequencing. Samples were accordingly retrieved from a local producer over two consecutive production campaigns and at different time periods within each campaign. The bacterial and fungi communities associated with each matrix were accessed through sequencing of V3–V4 and Internal Transcribed Spacer 2 regions of rRNA gene amplicons, respectively. A high microbial diversity was found associated to each matrix, differing significantly (p < 0.05) from each other. Over 500 taxa were identified in each analyzed matrix, ranging from dominant (relative abundance > 1%), sub-dominant (0.01–1%) and rare taxa (<0.01%). Specifically, in cheese, 30 taxa were present in all analyzed samples (core taxa), including species of Leuconostoc spp. and Lactococcus spp. for bacteria and Candida spp., Debaryomyces spp. and Yarrowia spp. for fungi, that were cumulatively the most prevalent genera in Serra da Estrela PDO cheese (average relative abundance ≥10%). Ultimately, this characterization study may contribute to a better understanding of the microbial dynamics of this traditional PDO product, namely the influence of raw materials on cheese microbiome, and could assist producers interested in preserving the identity, quality and safety of Serra da Estrela PDO cheese.
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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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11
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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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12
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Yildiz M, Turgut T, Cetin B, Kesmen Z. Microbiological characteristics and identification of yeast microbiota of traditional mouldy civil cheese. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Souza PVD, Grecellé CBZ, Barreto F, Ramírez-Castrillon M, Valente P, Costa MD. Bacteria and yeasts associated to Colonial cheese production chain and assessment of their hydrolytic potential. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2021. [DOI: 10.1590/1981-6723.28620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract Different types of microorganisms are important in cheese-making because of the contributions their metabolism offers during the process. Few microorganisms present in Colonial cheese are known, in addition to the ones that are introduced to kick-start the processes or the ones that are associated with infections or poisonings. This study aimed to identify, by MALDI-TOF and/or DNA sequencing, the bacteria and yeasts isolated from samples collected in the main stages of Colonial cheese production, i.e., a type of cheese produced in the southern region of Brazil. The lytic capacity of these microorganisms at 5 °C and 30 °C was also evaluated. The 58 bacterial strains were distributed in 10 species among the genera Bacillus, Citrobacter, Klebsiella, Lactococcus, Paenibacillus, Staphylococcus and Raoutella. From the 13 yeasts strains analyzed, three species were identified as following: Candida pararugosa; Meyerozyma guilliermondii; and Rhodotorula mucilaginosa. In three yeasts isolates it was possible to identify only the genus Candida sp. and Trichosporon sp. The species L. lactis (48%) and M. guilliermondii (46%) were, respectively, the predominant bacteria and yeasts species isolated. The highest microbial lytic activity observed was at 30 °C. Lipase activity on isolates was proportionally more observed with yeasts and proteolytic activity with bacteria. Lower caseinase and lipase activity was observed at 5 °C, demonstrating the importance of refrigeration in controlling microbial activity. This research highlighted the cultivation of some microorganisms that are part of the Colonial cheese microbiota as well as that several of them can hydrolyze various compounds present in milk and that could be associated with its maturation or, in uncontrolled circumstances, could be the cause of product deterioration.
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Pisano MB, Rosa A, Putzu D, Cesare Marincola F, Mossa V, Viale S, Fadda ME, Cosentino S. Influence of Autochthonous Putative Probiotic Cultures on Microbiota, Lipid Components and Metabolome of Caciotta Cheese. Front Microbiol 2020; 11:583745. [PMID: 33193226 PMCID: PMC7609418 DOI: 10.3389/fmicb.2020.583745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/29/2020] [Indexed: 12/16/2022] Open
Abstract
The present study was undertaken to produce probiotic Caciotta cheeses from pasteurized ewes' milk by using different combinations of autochthonous microbial cultures, containing putative probiotic strains, and evaluate their influence on gross composition, lipid components, sensory properties and microbiological and metabolite profiles of the cheeses throughout ripening process. A control cheese was produced using commercial starter cultures. The hydrophilic molecular pools (mainly composed by amino acids, organic acids, and carbohydrates) were characterized by means of 1H NMR spectroscopy, while the cholesterol, α-tocopherol and fatty acid composition by HPLC-DAD/ELSD techniques. Conventional culturing and a PCR-DGGE approach using total cheese DNA extracts were used to analyze cheese microbiota and monitor the presence and viability of starters and probiotic strains. Our findings showed no marked differences for gross composition, total lipids, total cholesterol, and fatty acid levels among all cheeses during ripening. Differently, the multivariate statistical analysis of NMR data highlighted significant variations in the cheese' profiles both in terms of maturation time and strains combination. The use of autochthonous cultures and adjunct probiotic strains did not adversely affect acceptability of the cheeses. Higher levels of lactobacilli (viability of 108-109 cfu/g of cheese) were detected in cheeses made with the addition of probiotic autochthonous strains with respect to control cheese during the whole ripening period, suggesting the adequacy of Caciotta cheese as a carrier for probiotic bacteria delivery.
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Affiliation(s)
- Maria Barbara Pisano
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Antonella Rosa
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Danilo Putzu
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | | | - Valentina Mossa
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Silvia Viale
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Maria Elisabetta Fadda
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Sofia Cosentino
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
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Geronikou A, Srimahaeak T, Rantsiou K, Triantafillidis G, Larsen N, Jespersen L. Occurrence of Yeasts in White-Brined Cheeses: Methodologies for Identification, Spoilage Potential and Good Manufacturing Practices. Front Microbiol 2020; 11:582778. [PMID: 33178163 PMCID: PMC7593773 DOI: 10.3389/fmicb.2020.582778] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/14/2020] [Indexed: 01/30/2023] Open
Abstract
Yeasts are generally recognized as contaminants in the production of white-brined cheeses, such as Feta and Feta-type cheeses. The most predominant yeasts species are Debaryomyces hansenii, Geotrichum candidum, Kluyveromyces marxianus, Kluyveromyces lactis, Rhodotorula mucilaginosa, and Trichosporon spp. Although their spoilage potential varies at both species and strain levels, yeasts will, in case of excessive growth, present a microbiological hazard, effecting cheese quality. To evaluate the hazard and trace routes of contamination, the exact taxonomic classification of yeasts is required. Today, identification of dairy yeasts is mainly based on DNA sequencing, various genotyping techniques, and, to some extent, advanced phenotypic identification technologies. Even though these technologies are state of the art at the scientific level, they are only hardly implemented at the industrial level. Quality defects, caused by yeasts in white-brined cheese, are mainly linked to enzymatic activities and metabolism of fermentable carbohydrates, leading to production of metabolites (CO2, fatty acids, volatile compounds, amino acids, sulfur compounds, etc.) and resulting in off-flavors, texture softening, discoloration, and swelling of cheese packages. The proliferation of spoilage yeast depends on maturation and storage conditions at each specific dairy, product characteristics, nutrients availability, and interactions with the co-existing microorganisms. To prevent and control yeast contamination, different strategies based on the principles of HACCP and Good Manufacturing Practice (GMP) have been introduced in white-brined cheese production. These strategies include milk pasteurization, refrigeration, hygienic sanitation, air filtration, as well as aseptic and modified atmosphere packaging. Though a lot of research has been dedicated to yeasts in dairy products, the role of yeast contaminants, specifically in white-brined cheeses, is still insufficiently understood. This review aims to summarize the current knowledge on the identification of contaminant yeasts in white-brined cheeses, their occurrence and spoilage potential related to different varieties of white-brined cheeses, their interactions with other microorganisms, as well as guidelines used by dairies to prevent cheese contamination.
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Affiliation(s)
- Athina Geronikou
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Thanyaporn Srimahaeak
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Kalliopi Rantsiou
- Department of Agricultural, Forestry and Food Sciences, University of Turin, Turin, Italy
| | | | - Nadja Larsen
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
| | - Lene Jespersen
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark
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Microbiological characterization of Gioddu, an Italian fermented milk. Int J Food Microbiol 2020; 323:108610. [PMID: 32240882 DOI: 10.1016/j.ijfoodmicro.2020.108610] [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: 01/20/2020] [Revised: 02/21/2020] [Accepted: 03/19/2020] [Indexed: 12/24/2022]
Abstract
Gioddu, also known as "Miciuratu", "Mezzoraddu" or "Latte ischidu" (literally meaning acidulous milk), is the sole variety of traditional Italian fermented milk. The aim of the present study was to elucidate the microbiota and the mycobiota occurring in artisan Gioddu sampled from three Sardinian producers by combining the results of viable counting on selective culture media and high-throughput sequencing. Physico-chemical parameters were also measured. The overall low pH values (3.80-4.22) recorded in the analyzed Gioddu samples attested the strong acidifying activity carried out by lactic acid bacteria during fermentation. Viable counts revealed the presence of presumptive lactococci, presumptive lactobacilli and non-Saccharomyces yeasts. A complex (kefir-like) microbiota of bacteria and yeasts was unveiled through sequencing. In more detail, Lactobacillus delbrueckii was found to dominate in Gioddu together with Streptococcus thermophilus, thus suggesting the establishment of a yogurt-like protocooperation. Unexpectedly, in all the three analyzed batches from two out of the three producers Lactobacillus kefiri was also detected, thus representing an absolute novelty, which suggests the presence of bioactive compounds (e.g. exopolysaccharides) similar to those characterizing milk kefir beverage. Mycobiota population, studied for the very first time in Gioddu, revealed a more complex composition, with Kluyveromyces marxianus, Galactomyces candidum and Geotrichum galactomyces constituting the core species. Further research is needed to disclose the eventual occurence in Gioddu of probiotic cultures and bioactive compounds (e.g. exopolysaccharides, angiotensin-converting enzyme inhibitory peptides and antimicrobial compounds) with potential health-benefits for the consumers.
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Quintana ÁR, Perea JM, García-Béjar B, Jiménez L, Garzón A, Arias R. Dominant Yeast Community in Raw Sheep's Milk and Potential Transfers of Yeast Species in Relation to Farming Practices. Animals (Basel) 2020; 10:E906. [PMID: 32456104 PMCID: PMC7278492 DOI: 10.3390/ani10050906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 11/16/2022] Open
Abstract
Yeasts are always present in any type of cheese, as well as in the factories where it is produced. However, the role of the yeast community in the cheese making process, as well as the routes of contamination used by yeast species to contaminate milk from the dairy farm environment, are not well known. The objectives of this study were to broaden the knowledge of the dominant yeast community in Manchega sheep's milk and to assess the contamination routes of the yeast species depending on the farm practices. Milk, teat surface (collected from ten ewes per farm), feed, and air (collected in milking parlours and livestock housing) samples were collected from 12 typical farms in Castilla-La Mancha, Spain with differences in farming practices, and the yeast species were identified using DNA sequencing methods. To evaluate whether certain farming practices have an effect on the distribution of species of yeast in the milk samples, a mixed model was used. The results showed that most of the dominant yeast species (mainly belonging to the genus Candida) found in milk were also found in the other samples, indicating a microbial transfer from the farm environment to the milk. Furthermore, the statistical model showed that factors influencing yeast counts in milk were the presence of yeasts in the milking parlour, the use of silage, and the frequency of acid treatment for cleaning the milking machines. In conclusion, milk contamination from the yeast species present in the dairy farm environment is related to certain farming practices such as the use of silage and the daily use of acid in the cleaning of the milking machines, which favours the presence of desirable microbiota in milk.
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Affiliation(s)
- Álvaro Rafael Quintana
- Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal de Castilla La Mancha (IRIAF), CERSYRA de Valdepeñas, 13300 Ciudad Real, Spain; (L.J.); (R.A.)
| | - José Manuel Perea
- Departamento de Producción Animal, Universidad de Córdoba, 14071 Córdoba, Spain; (J.M.P.); (A.G.)
| | - Beatriz García-Béjar
- Departamento de Química Analítica y Tecnología de los Alimentos, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain;
| | - Lorena Jiménez
- Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal de Castilla La Mancha (IRIAF), CERSYRA de Valdepeñas, 13300 Ciudad Real, Spain; (L.J.); (R.A.)
| | - Ana Garzón
- Departamento de Producción Animal, Universidad de Córdoba, 14071 Córdoba, Spain; (J.M.P.); (A.G.)
| | - Ramón Arias
- Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal de Castilla La Mancha (IRIAF), CERSYRA de Valdepeñas, 13300 Ciudad Real, Spain; (L.J.); (R.A.)
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Biolcati F, Andrighetto C, Bottero MT, Dalmasso A. Microbial characterization of an artisanal production of Robiola di Roccaverano cheese. J Dairy Sci 2020; 103:4056-4067. [DOI: 10.3168/jds.2019-17451] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/14/2020] [Indexed: 01/26/2023]
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19
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Inoculation with a terroir selected Debaryomyces hansenii strain changes physico-chemical characteristics of Iberian cured pork loin. Meat Sci 2019; 157:107875. [DOI: 10.1016/j.meatsci.2019.107875] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/19/2019] [Accepted: 06/19/2019] [Indexed: 11/17/2022]
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20
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Caboni P, Murgia A, Porcu A, Manis C, Ibba I, Contu M, Scano P. A metabolomics comparison between sheep's and goat's milk. Food Res Int 2018; 119:869-875. [PMID: 30884727 DOI: 10.1016/j.foodres.2018.10.071] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/11/2018] [Accepted: 10/25/2018] [Indexed: 12/21/2022]
Abstract
Despite the worldwide consumption of bovine milk, dairy products from small ruminants, such as goat's and sheep's milk, are gaining a large interest especially in the Mediterranean area. The aim of this work was to study the metabolite profiles of 30 sheep's and 28 goat's milk using an untargeted metabolomics approach by a gas chromatography coupled with mass spectrometry (GC-MS) analysis. Results showed several differences in the metabolite profiles: arabitol, citric acid, α-ketoglutaric acid, glyceric acid, myo-inositol, and glycine were more abundant in sheep's milk, while goat's milk had higher levels of mannose-6-phosphate, isomaltulose, valine, pyroglutamic acid, leucine, and fucose. Associations between metabolite profile and milk compositional traits were also found. Predictive capabilities of statistical models indicated a good correlation between the metabolite profile and the protein content in sheep's milk, and with the fat content in goat's milk. This work leads to a better understanding of milk metabolites in small ruminants and their role in the evaluation of milk properties.
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Affiliation(s)
- P Caboni
- Department of Life and Environmental Science, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy.
| | - A Murgia
- Department of Life and Environmental Science, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - A Porcu
- Department of Life and Environmental Science, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - C Manis
- Department of Life and Environmental Science, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - I Ibba
- Regional Association of Sardinian farmers, Milk Analysis Laboratory, Loc. Palloni, Nuraxinieddu, 09170, Oristano, Italy
| | - M Contu
- Regional Association of Sardinian farmers, Milk Analysis Laboratory, Loc. Palloni, Nuraxinieddu, 09170, Oristano, Italy
| | - P Scano
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, SS 554, km 4.5, 09042 Monserrato, Cagliari, Italy; Institute for Macromolecular Studies, National Research Council, Via Corti 12, 20133 Milan, Italy
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21
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Gonçalves Dos Santos MTP, Benito MJ, Córdoba MDG, Alvarenga N, Ruiz-Moyano Seco de Herrera S. Yeast community in traditional Portuguese Serpa cheese by culture-dependent and -independent DNA approaches. Int J Food Microbiol 2017; 262:63-70. [DOI: 10.1016/j.ijfoodmicro.2017.09.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/11/2017] [Accepted: 09/23/2017] [Indexed: 12/24/2022]
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22
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Cardozo MC, Fusco ÁJV, Carrasco MS. [Yeast microbiota in artisanal cheeses from Corrientes, Argentina]. Rev Argent Microbiol 2017; 50:165-172. [PMID: 29079331 DOI: 10.1016/j.ram.2016.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 04/22/2016] [Accepted: 06/28/2016] [Indexed: 10/18/2022] Open
Abstract
The artisanal cheese from Corrientes (from the Spanish acronym QAC-Queso Artesanal de Corrientes/Artisanal Cheese from Corrientes) is a soft cheese elaborated with raw cow milk and an artisanal coagulant agent. Lactic bacteria contitute the main flora of this cheese although yeasts are also present in high quantities as secondary microbiota and might play a relevant role in cheese ripening. The aim of this work was to evaluate yeast occurrence during QAC elaboration and ripening, and the effect of seasonal variation. Yeasts were isolated and purified from raw materials and cheese at different ripening stagesl elaborated during the different seasons. Yeast sample counts were in the order of 103 - 107UFC/ml o UFC/g. Ninety yeast strains were classified: 9 from milk, 28 from the coagulant agent, 10 from curd and 43 from cheese. Candida predominated in milk samples while other yeast genera had low incidence. Candida also predominated in the coagulant agent samples, followed by genera Myxozyma and Debaryomyces. The isolates obtained from cheese belonged to the same genera predominating in the coagulant agent, and showed the same order of prevalence.
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Affiliation(s)
- Marina C Cardozo
- Facultad de Ciencias Exactas, Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina.
| | - Ángel J V Fusco
- Facultad de Ciencias Exactas, Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina
| | - Marta S Carrasco
- Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
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23
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Ceugniez A, Taminiau B, Coucheney F, Jacques P, Delcenserie V, Daube G, Drider D. Fungal diversity of “Tomme d'Orchies” cheese during the ripening process as revealed by a metagenomic study. Int J Food Microbiol 2017; 258:89-93. [DOI: 10.1016/j.ijfoodmicro.2017.07.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 07/21/2017] [Accepted: 07/24/2017] [Indexed: 12/16/2022]
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24
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Pino A, Liotta L, Randazzo CL, Todaro A, Mazzaglia A, De Nardo F, Chiofalo V, Caggia C. Polyphasic approach to study physico-chemical, microbiological and sensorial characteristics of artisanal Nicastrese goat's cheese. Food Microbiol 2017; 70:143-154. [PMID: 29173621 DOI: 10.1016/j.fm.2017.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 09/08/2017] [Accepted: 09/10/2017] [Indexed: 10/18/2022]
Abstract
Nicastrese goat's cheese is produced in the South of Italy under traditional procedures, from raw goat milk without any starter cultures addition. Samples from milk to ripened cheese provided by 4 different farms were subjected to a polyphasic approach to study their physico-chemical, microbiological and sensorial characteristics. In addition, volatile organic compounds formation in the final products was studied. Overall, gross composition and microbiological data revealed a significant variability among samples, which was confirmed by both the volatile organic compounds generated in the final products and by the sensorial data. Conventional technique allowed us to identify 720 isolates, mainly belonging to Lactococcus lactis, Lactobacillus plantarum, Lactobacillus casei, Lactobacillus brevis, Leuconostoc mesenteroides, and Enterococcus faecalis. Culture-independent methods revealed shifts in the microbial community structure, with an increase in biodiversity of metabolically active bacterial species, from milk to cheese samples. Analysis of volatile organic compounds (VOCs) allowed the identification of 36 compounds; free fatty acids and ketones represented the main detected, followed by alcohols and esters. Moreover, statistical analysis was performed in order to correlate VOCs to bacterial species. Data showed that ester compounds as well as alcohol and aldehydes were positively correlated to NSLAB, indicating that the occurrence of L. casei, L. plantarum and L. brevis species is relevant for the VOCs formation in the final product.
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Affiliation(s)
- Alessandra Pino
- Department of Agricultural, Food and Environment, University of Catania, Italy
| | - Luigi Liotta
- Department of Veterinary Sciences, University of Messina, Italy
| | - Cinzia L Randazzo
- Department of Agricultural, Food and Environment, University of Catania, Italy.
| | - Aldo Todaro
- Department of Agricultural and Forest Science, University of Palermo, Italy
| | - Agata Mazzaglia
- Department of Agricultural, Food and Environment, University of Catania, Italy
| | - Floro De Nardo
- Italian Rare Breed Association (RARE), Lamezia Terme, Italy
| | | | - Cinzia Caggia
- Department of Agricultural, Food and Environment, University of Catania, Italy
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25
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Effect of chestnut tannin extract ( Castanea sativa Miller) on the proliferation of Cladosporium cladosporioides on sheep cheese rind during the ripening. Int Dairy J 2017. [DOI: 10.1016/j.idairyj.2016.10.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Microbiological Characteristics of Trachanas, a Traditional Fermented Dairy Product from Cyprus. J FOOD QUALITY 2017. [DOI: 10.1155/2017/8749316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to characterize the autochthonous microbiota of Cypriot Trachanas, a traditional fermented ewes’ milk product. For this reason, 12 samples of raw and fermented milk as well as natural starter culture were collected in order to count, isolate, and identify the main species present during Trachanas fermentation. In total, 198 colonies were retrieved and 163 were identified by sequencing analysis at species level. Lactic acid bacteria (LAB) were the predominant group, followed by yeasts. Lactococcus, Lactobacillus, and Enterococcus were frequently isolated from raw milk, and Lactobacillus casei/paracasei predominated in the starter culture. Lactococcus lactis was isolated in high frequency (27.9% of the isolates) at the beginning, while Lactobacillus spp. (20%) and Saccharomyces unisporus (17.9%) were isolated at the end of fermentation. After assessing their technological potential, selected strains could be used as starters to ferment milk for artisanal Trachanas production.
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27
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Fadda ME, Mossa V, Deplano M, Pisano MB, Cosentino S. In vitro screening of Kluyveromyces strains isolated from Fiore Sardo cheese for potential use as probiotics. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.08.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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28
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Kalamaki MS, Angelidis AS. Isolation and molecular identification of yeasts in Greek kefir. INT J DAIRY TECHNOL 2016. [DOI: 10.1111/1471-0307.12329] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mary S Kalamaki
- Laboratory of Milk Hygiene and Technology; Department of Food Hygiene and Technology; Faculty of Veterinary Medicine; School of Health Sciences; Aristotle University of Thessaloniki; 54124 Thessaloniki Greece
| | - Apostolos S Angelidis
- Laboratory of Milk Hygiene and Technology; Department of Food Hygiene and Technology; Faculty of Veterinary Medicine; School of Health Sciences; Aristotle University of Thessaloniki; 54124 Thessaloniki Greece
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29
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Prista C, Michán C, Miranda IM, Ramos J. The halotolerant Debaryomyces hansenii, the Cinderella of non-conventional yeasts. Yeast 2016; 33:523-533. [PMID: 27279567 DOI: 10.1002/yea.3177] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 05/10/2016] [Accepted: 05/10/2016] [Indexed: 11/10/2022] Open
Abstract
Debaryomyces hansenii is a halotolerant yeast with a high biotechnological potential, particularly in the food industry. However, research in this yeast is limited by its molecular peculiarities. In this review we summarize the state of the art of research in this microorganisms, describing both pros and cons. We discuss (i) its halotolerance, (ii) the molecular factors involved in saline and osmotic stress, (iii) its high gene density and ambiguous CUG decoding, and (iv) its biotechnological and medical interests. We trust that all the bottlenecks in its study will soon be overcome and D. hansenii will become a fundamental organism for food biotechnological processes. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Catarina Prista
- LEAF - Research Centre Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, 1649-003, Portugal
| | - Carmen Michán
- Departamento de Bioquímica y Biología Molecular, Campus de Rabanales, Universidad de Córdoba, 14071, Córdoba, Spain
| | - Isabel M Miranda
- Department of Microbiology, Faculty of Medicine, University of Porto, Porto, Portugal.,CINTESIS - Centre for Health Technology and Services Research, Faculty of Medicine of the University of Porto, Portugal
| | - José Ramos
- Departamento de Microbiología, Campus de Rabanales, Universidad de Córdoba, 14071, Córdoba, Spain.
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30
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Abel T, Donatien K, Aly S, Adama S, Nadia FF, Diarra CS, Joseph DH, Hagr eacute tou SL. Evaluation of microbiological quality of raw milk, sour milk and artisanal yoghurt from Ouagadougou, Burkina Faso. ACTA ACUST UNITED AC 2016. [DOI: 10.5897/ajmr2015.7949] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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31
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Aponte M, Blaiotta G. Selection of an autochthonous Saccharomyces cerevisiae strain for the vinification of “Moscato di Saracena”, a southern Italy (Calabria Region) passito wine. Food Microbiol 2016. [DOI: 10.1016/j.fm.2015.10.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Cardoso VM, Borelli BM, Lara CA, Soares MA, Pataro C, Bodevan EC, Rosa CA. The influence of seasons and ripening time on yeast communities of a traditional Brazilian cheese. Food Res Int 2015. [DOI: 10.1016/j.foodres.2014.12.040] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Shokri H. Genotypic variation and antifungal susceptibly of Candida zeylanoides clinical isolates. J Mycol Med 2014; 24:179-84. [DOI: 10.1016/j.mycmed.2014.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/18/2013] [Accepted: 01/06/2014] [Indexed: 01/22/2023]
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34
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Tofalo R, Fasoli G, Schirone M, Perpetuini G, Pepe A, Corsetti A, Suzzi G. The predominance, biodiversity and biotechnological properties of Kluyveromyces marxianus in the production of Pecorino di Farindola cheese. Int J Food Microbiol 2014; 187:41-9. [DOI: 10.1016/j.ijfoodmicro.2014.06.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/26/2014] [Accepted: 06/29/2014] [Indexed: 10/25/2022]
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35
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Galinari É, da Nóbrega JE, de Andrade NJ, de Luces Fortes Ferreira CL. Microbiological aspects of the biofilm on wooden utensils used to make a Brazilian artisanal cheese. Braz J Microbiol 2014; 45:713-20. [PMID: 25242963 PMCID: PMC4166304 DOI: 10.1590/s1517-83822014000200047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 09/09/2013] [Indexed: 11/21/2022] Open
Abstract
The artisanal Minas cheese is produced from raw cow’s milk and wooden utensils were employed in its manufacture, which were replaced by other materials at the request of local laws. This substitution caused changes in the traditional characteristics of cheese. Due to the absence of scientific studies indicating the microbial composition of biofilms formed on wooden forms, tables and shelves used in these cheese production, the present work evaluated the counts of Staphylococcus aureus, Escherichia coli, coliforms at 32 °C, yeasts, presumptive mesophilic Lactobacillus spp. and Lactococcus spp. in these biofilms, milk, whey endogenous culture and ripened cheese in two traditional regions: Serro and Serra da Canastra. Also, we checked for the presence of Salmonella sp. and Listeria monocytogenes in the ripened cheeses. The ultra structure of the biofilms was also assessed. Counts above legislation (> 2 log cfu/mL) for the pathogens evaluated were found in milk samples from both regions. Only one shelf and one form from Serro were above limits proposed (5 cfu/cm2 for S. aureus and E. coli and 25 cfu/cm2 for coliforms) in this study for contaminants evaluated. In Canastra, few utensils presented safe counting of pathogens. There was no Salmonella sp. and Listeria monocytogenes in the cheeses after ripening. Thus, the quality of the cheese is related to improving the microbiological quality of milk, implementation and maintenance of good manufacturing practices, correct cleaning of wooden utensils, and not its replacement.
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Affiliation(s)
- Éder Galinari
- Departamento de Microbiologia Universidade Federal de Viçosa ViçosaMG Brazil Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Juliana Escarião da Nóbrega
- Departamento de Tecnologia de Alimentos Universidade Federal de Viçosa ViçosaMG Brazil Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Nélio José de Andrade
- Departamento de Tecnologia de Alimentos Universidade Federal de Viçosa ViçosaMG Brazil Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Célia Lúcia de Luces Fortes Ferreira
- Departamento de Tecnologia de Alimentos Universidade Federal de Viçosa ViçosaMG Brazil Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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36
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37
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Padilla B, Manzanares P, Belloch C. Yeast species and genetic heterogeneity within Debaryomyces hansenii along the ripening process of traditional ewes' and goats' cheeses. Food Microbiol 2014; 38:160-6. [DOI: 10.1016/j.fm.2013.09.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/27/2013] [Accepted: 09/08/2013] [Indexed: 11/29/2022]
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38
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Updating on the fungal composition in Sardinian sheep's milk by culture-independent methods. J DAIRY RES 2014; 81:233-7. [PMID: 24666807 DOI: 10.1017/s0022029914000090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This work applies culture-independent methods for the characterization of fungal populations (yeasts and moulds) naturally occurring in Sardinian ewe's milk sampled in the Italian areas with the largest dairy production (Sardinia and Lazio regions). Sequences of the D1/D2 variable domains at the 5' end of the 26S rRNA gene were obtained by amplification of DNA directly isolated from milk, and this allowed identification of a total of 6 genera and 15 species of fungi. Among the 6 identified genera Geotrichum spp., Candida spp., Phaeosphaeriopsis spp., Pestalotiopsis spp. and Cladosporium spp. belong to the phylum of Ascomycota, while Cryptococcus spp. is part of the phylum of Basidiomycota. In particular, two genera (Pestalotiopsis and Phaeosphaeriopsis) and two species (Plectosphaerella cucumerina and Pryceomyces carsonii) have never been reported in dairy ecosystems before. Results provide evidence that several moulds and yeasts, previously described only in ovine cheeses, are transferred directly from raw milk. The knowledge of fungal consortia inhabiting sheep raw milk is a particularly relevant issue because several species are directly involved in cheese making and ripening, determining the typical aroma. On the other hand, spoilage yeasts and moulds are involved in anomalous fermentation of cheese and may be responsible for considerable economic losses and serious risks for consumers' health.
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39
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Facchin S, Barbosa AC, Carmo LS, Silva MCC, Oliveira AL, Morais PB, Rosa CA. Yeasts and hygienic-sanitary microbial indicators in water buffalo mozzarella produced and commercialized in Minas Gerais, Brazil. Braz J Microbiol 2014; 44:701-7. [PMID: 24516436 PMCID: PMC3910177 DOI: 10.1590/s1517-83822013000300006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 11/13/2012] [Indexed: 11/21/2022] Open
Abstract
The aim of this work was to study the yeast populations and the main hygienic-sanitary microbial indicators in water buffalo mozzarella produced and commercialized in Minas Gerais, Brazil. Forty-two water buffalo mozzarella samples were purchased from retail outlets in Belo Horizonte. In addition, five samples of consecutive starter cultures, curd before acidification, acidified curd and mozzarella were collected at an industry in the city of Oliveira. Only three of the five water samples analyzed were suitable for consumption according to Brazilian sanitary standards. Four milk samples were highly contaminated with fecal coliforms, and did not meet the minimal hygienic-sanitary standards according to Brazilian regulations. Only one sample of buffalo muzzarela purchased from retail outlets exceeded the limit for coagulase-positive Staphylococcus. Eleven samples showed counts of thermotolerant coliforms higher than 5 × 10(3) CFU.g(-1), but still lower than the maximum permitted by the Brazilian laws. Salmonella spp. and Listeria monocytogenes were not isolated. Debaryomyces hansenii, Candida lusitaniae and C. parapsilosis were the prevalent yeast species isolated from cheese. Among samples from the production stages, the acidified curd presented the highest numbers of yeasts, with C. catenulata being the most frequent species isolated. Some opportunistic yeast species such as C. guilliermondii, C. tropicalis, C. parapsilosis, C. lusitaniae, C. catenulata, C. rugosa and C. krusei occurred in the mozzarella cheese samples analyzed. The mozzarella cheese presented a low microbial load as compared to other cheese already studied, and the yeast biota included species typical of cheese and also opportunistic pathogens.
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Affiliation(s)
- Susanne Facchin
- Departamento de Microbiologia, ICB, CP. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Anne C Barbosa
- Departamento de Microbiologia, ICB, CP. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiz S Carmo
- Departamento de Microbiologia, ICB, CP. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Afonso L Oliveira
- Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Paula B Morais
- Laboratório de Microbiologia Ambiental e Biotecnologia. Campus Universitário de Palmas. Universidade Federal do Tocantins, Palmas, TO, Brazil
| | - Carlos A Rosa
- Departamento de Microbiologia, ICB, CP. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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40
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Cabrera-Orefice A, Chiquete-Félix N, Espinasa-Jaramillo J, Rosas-Lemus M, Guerrero-Castillo S, Peña A, Uribe-Carvajal S. The branched mitochondrial respiratory chain from Debaryomyces hansenii: Components and supramolecular organization. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1837:73-84. [DOI: 10.1016/j.bbabio.2013.07.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/23/2013] [Accepted: 07/25/2013] [Indexed: 11/29/2022]
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41
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Fadda M, Pisano M, Scaccabarozzi L, Mossa V, Deplano M, Moroni P, Liciardi M, Cosentino S. Use of PCR-restriction fragment length polymorphism analysis for identification of yeast species isolated from bovine intramammary infection. J Dairy Sci 2013; 96:7692-7. [DOI: 10.3168/jds.2013-6996] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 08/16/2013] [Indexed: 11/19/2022]
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42
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Molecular study of Geotrichum strains isolated from Armada cheese. Food Microbiol 2013; 36:481-7. [DOI: 10.1016/j.fm.2013.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 07/18/2013] [Accepted: 07/21/2013] [Indexed: 11/23/2022]
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43
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Binetti A, Carrasco M, Reinheimer J, Suárez V. Yeasts from autochthonal cheese starters: technological and functional properties. J Appl Microbiol 2013; 115:434-44. [DOI: 10.1111/jam.12228] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 03/01/2013] [Accepted: 04/15/2013] [Indexed: 11/29/2022]
Affiliation(s)
- A. Binetti
- Instituto de Lactología Industrial (INLAIN, UNL - CONICET); Santa Fe Argentina
| | - M. Carrasco
- Cátedra de Microbiología, Dpto. Ingeniería en Alimentos (FIQ - UNL); Santa Fe Argentina
| | - J. Reinheimer
- Instituto de Lactología Industrial (INLAIN, UNL - CONICET); Santa Fe Argentina
| | - V. Suárez
- Instituto de Lactología Industrial (INLAIN, UNL - CONICET); Santa Fe Argentina
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44
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Molecular characterization and aromatic potential of Debaryomyces hansenii strains isolated from naturally fermented sausages. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.02.047] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Urbina H, Frank R, Blackwell M. Scheffersomyces cryptocercus: a new xylose-fermenting yeast associated with the gut of wood roaches and new combinations in the Sugiyamaella yeast clade. Mycologia 2012; 105:650-60. [PMID: 23233509 DOI: 10.3852/12-094] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The gut of wood-feeding insects is a microhabitat for a specialized community of microbes, including bacteria and several groups of eukaryotes such as nematodes, parabasalids and fungi. The characterization of gut yeast communities from a variety of insects has shown that certain yeasts often are associated with the insects. The gut of wood-feeding insects is rich in ascomycete yeasts and in particular xylose-fermenting (X-F) and assimilating yeasts have been consistently present in the gut of lignicolous insects. The objective of this study was the characterization of the yeast flora from the gut of the wood roach Cryptocercus sp. (Blattodea: Cryptocercidae). Five wood roaches were collected along the Appalachian Trail near the border between Tennessee and North Carolina, USA. We isolated 18 yeast strains from the wood roaches identified as Sugiyamaella paludigena and Sugiyamaella lignohabitans, xylose-assimilating yeasts, and Scheffersomyces cryptocercus (NRRL Y-48824(T) = CBS 12658) a new species of X-F yeast. The presence of X-F and certain non X-F yeasts in the gut of the subsocial wood roach Cryptocercus sp. extends the previous findings of associations between certain ascomycete yeasts and lignicolous insects. New combinations were made for 13 asexual members of the Sugiyamaella clade.
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Affiliation(s)
- Hector Urbina
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
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46
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Production of fermented chestnut purees by lactic acid bacteria. Int J Food Microbiol 2012; 158:195-202. [DOI: 10.1016/j.ijfoodmicro.2012.07.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 06/19/2012] [Accepted: 07/07/2012] [Indexed: 11/24/2022]
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Urbina H, Blackwell M. Multilocus phylogenetic study of the Scheffersomyces yeast clade and characterization of the N-terminal region of xylose reductase gene. PLoS One 2012; 7:e39128. [PMID: 22720049 PMCID: PMC3375246 DOI: 10.1371/journal.pone.0039128] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 05/18/2012] [Indexed: 01/21/2023] Open
Abstract
Many of the known xylose-fermenting (X-F) yeasts are placed in the Scheffersomyces clade, a group of ascomycete yeasts that have been isolated from plant tissues and in association with lignicolous insects. We formally recognize fourteen species in this clade based on a maximum likelihood (ML) phylogenetic analysis using a multilocus dataset. This clade is divided into three subclades, each of which exhibits the biochemical ability to ferment cellobiose or xylose. New combinations are made for seven species of Candida in the clade, and three X-F taxa associated with rotted hardwood are described: Scheffersomyces illinoinensis (type strain NRRL Y-48827(T) = CBS 12624), Scheffersomyces quercinus (type strain NRRL Y-48825(T) = CBS 12625), and Scheffersomyces virginianus (type strain NRRL Y-48822(T) = CBS 12626). The new X-F species are distinctive based on their position in the multilocus phylogenetic analysis and biochemical and morphological characters. The molecular characterization of xylose reductase (XR) indicates that the regions surrounding the conserved domain contain mutations that may enhance the performance of the enzyme in X-F yeasts. The phylogenetic reconstruction using XYL1 or RPB1 was identical to the multilocus analysis, and these loci have potential for rapid identification of cryptic species in this clade.
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Affiliation(s)
- Hector Urbina
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
| | - Meredith Blackwell
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
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Shokri H. Genetic diversity and antifungal susceptibility ofCandida zeylanoidesstrains obtained from the genital tract of female camels (Camelus dromedarius). JOURNAL OF APPLIED ANIMAL RESEARCH 2012. [DOI: 10.1080/09712119.2012.672308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lavoie K, Touchette M, St-Gelais D, Labrie S. Characterization of the fungal microflora in raw milk and specialty cheeses of the province of Quebec. ACTA ACUST UNITED AC 2011; 92:455-468. [PMID: 23125908 PMCID: PMC3478505 DOI: 10.1007/s13594-011-0051-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 11/09/2011] [Accepted: 11/21/2011] [Indexed: 11/25/2022]
Abstract
The cheese microbial ecosystem is complex, and the presence of non-starter adventitious microorganisms in milk may have an influence on the organoleptic characteristics of cheese. The aim of this study was to analyze the composition and diversity of the fungal flora of raw milk destined for cheesemaking from 19 dairy farms in Quebec and to monitor their evolution throughout ripening. Six hundred ten yeast and mold isolates were collected from raw milk and raw milk cheeses over a 9-month period. Based on the sequences of the rDNA ITS1-5.8S-ITS2 region, 67% of the raw milk isolates were yeasts, which were assigned to 37 species across 11 genera, while 33% were molds, which were assigned to 33 species across 25 genera. A semi-quantitative analysis of the yeasts and molds in the raw milk from four farms was performed over a 5-month period. The composition and diversity of the fungal microflora were totally different for each farm, each of which had a unique species profile. To determine whether adventitious yeast strains from the milk could develop in raw milk cheese, a multilocus-sequence-typing (MLST) analysis was performed on 13 Issatchenkia orientalis (syn. Pichia kudriavzevii, anamorph: Candida krusei) isolates. The same MLST genotypes were identified for strains independently isolated from raw milk and raw milk cheese from a farm processing its own milk. This study contributes to the understanding of the natural fungal microflora of raw milk and suggests that non-starter yeasts and molds can transfer from raw milk to raw milk cheese and may influence cheese ripening. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s13594-011-0051-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Karine Lavoie
- Nutraceuticals and Functional Foods Institute (INAF) and STELA Dairy Research Centre, Québec, QC Canada
- Department of Food Sciences and Nutrition, Université Laval, 2425 rue de l’Agriculture, Pavillon Paul-Comtois, Québec, QC Canada G1V 0A6
| | - Marilyne Touchette
- Nutraceuticals and Functional Foods Institute (INAF) and STELA Dairy Research Centre, Québec, QC Canada
- Department of Food Sciences and Nutrition, Université Laval, 2425 rue de l’Agriculture, Pavillon Paul-Comtois, Québec, QC Canada G1V 0A6
| | - Daniel St-Gelais
- Nutraceuticals and Functional Foods Institute (INAF) and STELA Dairy Research Centre, Québec, QC Canada
- Food Research and Development Centre, Agriculture and Agri-Food Canada, 3600 Casavant Boulevard West, Saint-Hyacinthe, QC Canada J2S 8E3
| | - Steve Labrie
- Nutraceuticals and Functional Foods Institute (INAF) and STELA Dairy Research Centre, Québec, QC Canada
- Department of Food Sciences and Nutrition, Université Laval, 2425 rue de l’Agriculture, Pavillon Paul-Comtois, Québec, QC Canada G1V 0A6
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Aponte M, Blaiotta G, Croce FL, Mazzaglia A, Farina V, Settanni L, Moschetti G. Use of selected autochthonous lactic acid bacteria for Spanish-style table olive fermentation. Food Microbiol 2011; 30:8-16. [PMID: 22265277 DOI: 10.1016/j.fm.2011.10.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 09/21/2011] [Accepted: 10/05/2011] [Indexed: 11/28/2022]
Abstract
The present work presents a successful attempt to achieve an enhanced and more predictable fermentation process in Spanish-style green olive technology by selection and use of autochthonous starter cultures. During the first phase of this work, two Spanish-like fermentations of green table olives of cultivar (cv) "Nocellara del Belice", coming from irrigated and not irrigated fields, were monitored, in order to highlight the best agricultural conditions for drupe production and to isolate lactic acid bacteria strains with relevant technological properties. Among 88 identified isolates, one Lactobacillus pentosus strain showed remarkable biochemical features and high acidification rate in synthetic brine. In the second phase, the selected strain was used as starter culture in three different trials to establish the best conditions for its use. Microbial counting, as well as starter tracking by M13 RAPD-PCR, reflected the optimal adaptation of the strain to the environment. Spontaneous fermentation needed a 14-day long lag phase to reach the same population as the inoculated trials. Moreover, sensory traits of table olives obtained with adjunct culture showed better characteristics compared to those processed in the other trials, in particular concerning the presence of off-odours.
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Affiliation(s)
- Maria Aponte
- Dipartimento Scienza degli Alimenti, Università degli Studi di Napoli Federico II, Via Università 100, 80055 Portici, Italy
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