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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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Yang Y, Xia Y, Wang YR, Sun LS, Shuang Q, Zhang FM. Optimization of lactic acid bacterial starter culture to improve the quality and flavor characteristics of traditional Hurood. J Dairy Sci 2024; 107:105-122. [PMID: 37690709 DOI: 10.3168/jds.2023-23754] [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: 05/17/2023] [Accepted: 07/24/2023] [Indexed: 09/12/2023]
Abstract
Hurood is a traditional fermented milk product prepared by traditional Mongolian techniques of fermenting raw milk, partial degreasing, heating, whey drainage, emulsification of curd, and molding. Currently, Hurood available in the market is generally prepared by small-scale enterprises at home or in open air. Therefore, lack of standardization of bacterial starter culture leads to variation in the flavor and sensory properties of Hurood from batch to batch. In this study, we aimed to assess the best starter culture combination obtained from 37 lactic acid bacterial strains isolated from traditional Hurood. The solidification state and sensory quality were used as indexes for determining the fermentation efficiency of the bacterial starter culture combinations. The yield and texture characteristics were used to determine the optimal ratio of bacterial strains in a combination and the processing conditions for traditional Hurood production. The most optimal bacterial culture combination was observed to be NF 9-3:NF 10-4:CH 3-1 in 5:4:1 ratio and in 3% amount. The most optimal whey temperature and heating-stirring temperature were observed to be 55°C to 60°C and 85°C to 90°C, respectively. Hurood prepared with the optimal combination of bacterial strains exhibited significantly enhanced sensory quality, flavor, and contents of AA and fatty acids. Therefore, the use of optimal starter culture of lactic acid bacteria could produce Hurood with significantly superior sensory qualities, making the product more acceptable to consumers.
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Affiliation(s)
- Yang Yang
- Department of College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Yanan Xia
- Department of College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China
| | - Yu Rong Wang
- Xiangyang Lactic Acid Bacteria Biotechnology and Engineering Key Laboratory, Institute Hubei University of Arts and Science, Xiangyang, 441100, People's Republic of China
| | - Li Shan Sun
- Zhenglan Banner Changhong Dairy Factory, Hohhot, Inner Mongolia, 027200, People's Republic of China
| | - Quan Shuang
- Department of College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China.
| | - Feng Mei Zhang
- Department of College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, People's Republic of China.
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Sun L, D'Amico DJ. The impact of environmental conditions and milk type on microbial communities of wooden vats and cheeses produced therein. Food Microbiol 2023; 115:104319. [PMID: 37567629 DOI: 10.1016/j.fm.2023.104319] [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: 03/09/2023] [Revised: 05/15/2023] [Accepted: 06/05/2023] [Indexed: 08/13/2023]
Abstract
Wooden vats are used in the production of some traditional cheeses as the biofilms on wooden vat surfaces are known to transfer large quantities of microbes to cheese. Variability in microbial communities on wooden vats could lead to inconsistent cheese production. In the present study, the influences of environmental conditions and milk type (raw or heat-treated) on the microbial composition of vat biofilms and cheeses made in the vats were studied using amplicon sequencing of bacterial 16S rRNA and fungal internal transcribed spacer genes. Results showed that the microbial composition of biofilms was influenced by environmental conditions but not the milk type used in cheese production. The microbial composition of cheeses can be further affected by bacterial contributions from milk and the selective forces of environmental conditions. Results of this study suggest that controlling environmental conditions could maintain a more consistent microbial composition of biofilms on wooden vats and resulting cheeses. The use of wooden vats coupled with heat-treated milk at one or more stages of cheese production might be a viable approach to produce cheese with high microbial diversities and reduce risks of undesirable microbes related to food safety and quality.
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Affiliation(s)
- Lang Sun
- Department of Animal Science, University of Connecticut, Agricultural Biotechnology Laboratory, 1390 Storrs Road, U-4163, Storrs, CT, 06269-4163, USA; Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, 410078, Hunan, China
| | - Dennis J D'Amico
- Department of Animal Science, University of Connecticut, Agricultural Biotechnology Laboratory, 1390 Storrs Road, U-4163, Storrs, CT, 06269-4163, USA.
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Garofalo G, Ponte M, Busetta G, Tolone M, Bonanno A, Portolano B, Gaglio R, Erten H, Sardina MT, Settanni L. A Thorough Investigation of the Microbiological, Physicochemical, and Sensory Properties of Ewe's Yoghurt Fermented by a Selected Multi-Strain Starter Culture. Foods 2023; 12:3454. [PMID: 37761162 PMCID: PMC10529652 DOI: 10.3390/foods12183454] [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: 08/29/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
This work was carried out with the aim to investigate the microbiological, physicochemical, and sensory properties of an innovative yoghurt produced from ewe's milk. Experimental yoghurt productions were performed with a commercial freeze-dried starter preparation and a natural milk starter culture (NMSC) of Streptococcus thermophilus and Lactobacillus delbrueckii. The two yoghurts did not differ for colour parameters, showing an average value of lightness, redness, and yellowness of 94.99, -3.74, and 9.37, respectively. The yoghurt produced using the NMSC as a fermenting agent was characterised by a significantly lower fat percentage and a higher antioxidant potential than commercial starters. Microbiological analysis confirmed the safety of the final product and a level of living lactic acid bacteria of 108 CFU/g. Sensory analysis revealed some differences among yoghurts regarding unpleasant odour, homogeneity, and persistence in the mouth, but the yoghurt processed with NMSC was more appreciated. Thus, the production of ewe's yoghurt fermented by a selected multi-strain starter culture represents an interesting strategy to enlarge the functional ovine dairy product portfolio.
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Affiliation(s)
- Giuliana Garofalo
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Marialetizia Ponte
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Gabriele Busetta
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Marco Tolone
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Adriana Bonanno
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Baldassare Portolano
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Raimondo Gaglio
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Hüseyin Erten
- Department of Food Engineering, Faculty of Engineering, Çukurova University, Adana 1330, Turkey;
| | - Maria Teresa Sardina
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
| | - Luca Settanni
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy; (G.G.); (M.P.); (G.B.); (M.T.); (A.B.); (B.P.); (M.T.S.); (L.S.)
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Paggio F, Ritota M, Di Costanzo MG, Barzaghi S, Monti L, Ulrici A, Manzi P. Effects of time and temperature of storage on chemical and nutritional characteristics of raw milk for Provolone Valpadana PDO cheesemaking: a multivariate approach. J DAIRY RES 2023:1-9. [PMID: 37326234 DOI: 10.1017/s0022029923000341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
We evaluated the possibility of increasing the storage temperature of raw milk for Provolone Valpadana cheesemaking, to identify the most suitable conditions of time and temperature for a pre-maturation process. We used Principal Component Analysis (PCA) to analyze the overall effects of different storage conditions on chemical, nutritional and technological characteristics of the raw milk. Four different thermal storage cycles, two at fixed temperature/time (6 and 12°C for 60 h) and two with two-phase thermal cycle (10 and 12°C for 15 h, followed by refrigeration at 4°C for 45 h) were studied. Although a moderate heterogeneity among raw milks from the 11 producers of Provolone Valpadana cheese was observed, PCA revealed the critical aspects of the extreme storage conditions (60 h of refrigeration). Some samples resulted in anomalous behaviors, probably related to unexpected fermentation phenomena occurring with increasing storage temperature. The acidification and the increase in the contents of lactic acid, soluble calcium, and degree of retinol isomerization observed in the anomalous samples can compromise the technological functionality of milk. Conversely, the storage with a two-phase thermal cycle did not lead to variations in any measured characteristic, suggesting that mild refrigeration conditions (10 or 12°C for 15 h followed by 4°C for 45 h) could be a good compromise in favoring milk pre-maturation without altering its quality characteristics.
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Affiliation(s)
- Federico Paggio
- Dipartimento di Scienze della Vita, Università di Modena e Reggio Emilia, Reggio Emilia, Italy
| | - Mena Ritota
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria (CREA), Centro di ricerca Alimenti e Nutrizione, Rome, Italy
| | - Maria Gabriella Di Costanzo
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria (CREA), Centro di ricerca Alimenti e Nutrizione, Rome, Italy
| | - Stefania Barzaghi
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria (CREA), Centro di ricerca Zootecnia e Acquacoltura, Lodi, Italy
| | - Lucia Monti
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria (CREA), Centro di ricerca Zootecnia e Acquacoltura, Lodi, Italy
| | - Alessandro Ulrici
- Dipartimento di Scienze della Vita, Università di Modena e Reggio Emilia, Reggio Emilia, Italy
| | - Pamela Manzi
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria (CREA), Centro di ricerca Alimenti e Nutrizione, Rome, Italy
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Bettera L, Levante A, Bancalari E, Bottari B, Gatti M. Lactic acid bacteria in cow raw milk for cheese production: Which and how many? Front Microbiol 2023; 13:1092224. [PMID: 36713157 PMCID: PMC9878191 DOI: 10.3389/fmicb.2022.1092224] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Lactic Acid Bacteria (LAB) exert a fundamental activity in cheese production, as starter LAB in curd acidification, or non-starter LAB (NSLAB) during ripening, in particular in flavor formation. NSLAB originate from the farm and dairy environment, becoming natural contaminants of raw milk where they are present in very low concentrations. Afterward, throughout the different cheesemaking processes, they withstand chemical and physical stresses becoming dominant in ripened cheeses. However, despite a great body of knowledge is available in the literature about NSLAB effect on cheese ripening, the investigations regarding their presence and abundance in raw milk are still poor. With the aim to answer the initial question: "which and how many LAB are present in cow raw milk used for cheese production?," this review has been divided in two main parts. The first one gives an overview of LAB presence in the complex microbiota of raw milk through the meta-analysis of recent taxonomic studies. In the second part, we present a collection of data about LAB quantification in raw milk by culture-dependent analysis, retrieved through a systematic review. Essentially, the revision of data obtained by plate counts on selective agar media showed an average higher concentration of coccoid LAB than lactobacilli, which was found to be consistent with meta-taxonomic analysis. The advantages of the impedometric technique applied to the quantification of LAB in raw milk were also briefly discussed with a focus on the statistical significance of the obtainable data. Furthermore, this approach was also found to be more accurate in highlighting that microorganisms other than LAB are the major component of raw milk. Nevertheless, the variability of the results observed in the studies based on the same counting methodology, highlights that different sampling methods, as well as the "history" of milk before analysis, are variables of great importance that need to be considered in raw milk analysis.
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Franceschi P, Formaggioni P, Brasca M, Natrella G, Faccia M, Malacarne M, Summer A. Fatty acids composition and lipolysis of Parmigiano Reggiano PDO cheese: effect of the milk cooling temperature at the farm. Anim Biosci 2023; 36:132-143. [PMID: 35798045 PMCID: PMC9834655 DOI: 10.5713/ab.22.0080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/23/2022] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE The aim was to study the influence of cooling milk at 9°C at the farm versus keeping it at 20°C on Parmigiano Reggiano cheese lipolysis. METHODS A total of six cheesemaking trials (3 in winter and 3 in summer) were performed. In each trial, milk was divided continuously into two identical aliquots, one of which was kept at 9°C (MC9) and the other at 20°C (MC20). For each trial and milk temperature, vat milk (V-milk) and the resulting 21 month ripened cheese were analysed. RESULTS Fat and dry matter and fat/casein ratio were lower in MC9 V-milk (p≤0.05) than in MC20. Total bacteria, mesophilic lactic acid and psychrotrophic and lipolytic bacteria showed significant differences (p≤0.05) between the two V-milks. Regarding cheese, fat content resulted lower and crude protein higher (p≤0.05) both in outer (OZ) and in inner zone (IZ) of the MC9 cheese wheels. Concerning total fatty acids, the MC9 OZ had a lower concentration of butyric, capric (p≤0.05) and medium chain fatty acids (p≤0.05), while the MC9 IZ had lower content of butyric (p≤0.05), caproic (p≤0.01) and short chain fatty acids (p≤0.05). The levels of short chain and medium chain free fatty acids (p≤0.05) were lower and that of long chain fatty acids (p≤0.05) was higher in MC9 OZ cheese. The principal component analysis of total and free fatty acids resulted in a clear separation among samples by seasons, whereas slight differences were observed between the two different milk temperatures. CONCLUSION Storing milk at 9°C at the herd affects the chemical composition of Parmigiano Reggiano, with repercussion on lipolysis. However, the changes are not very relevant, and since the cheese can present a high variability among the different cheese factories, such changes should be considered within the "normal variations" of Parmigiano Reggiano chemical characteristics.
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Affiliation(s)
- Piero Franceschi
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126, Parma,
Italy
| | - Paolo Formaggioni
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126, Parma,
Italy
| | - Milena Brasca
- Institute of Sciences of Food Production, National Research Council, Via Celoria 2, IT-20133 Milano,
Italy
| | - Giuseppe Natrella
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70125 Bari,
Italy,Corresponding Authors: Giuseppe Natrella, Tel: +39-080-5443012, Fax: +39-080-5442942, E-mail: . Massimo Malacarne, Tel: +39-0521-032615, Fax: +39-0521-032611, E-mail:
| | - Michele Faccia
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70125 Bari,
Italy
| | - Massimo Malacarne
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126, Parma,
Italy,Corresponding Authors: Giuseppe Natrella, Tel: +39-080-5443012, Fax: +39-080-5442942, E-mail: . Massimo Malacarne, Tel: +39-0521-032615, Fax: +39-0521-032611, E-mail:
| | - Andrea Summer
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126, Parma,
Italy
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Raw Milk for Provolone Valpadana PDO Cheese: Impact of Modified Cold Storage Conditions on the Composition of the Bacterial Biota. DAIRY 2022. [DOI: 10.3390/dairy3040048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The raw milk for production of long-ripened, spicy type, Provolone Valpadana (PV) PDO cheese must be stored, refrigerated, and processed within 60 h from the first milking, according to European and Consortium regulations. Low-temperature storage conditions preserve the hygienic quality, but also reduce the diversity and content of dairy microbiota, which is important to define the characteristics and quality of raw milk cheeses. Eleven bulk, raw milk samples were stored, at laboratory level, under two different time/temperature conditions (i.e., 10 °C or 12 °C for 15 h, then cooled to 4 °C for 45 h). The count of different bacterial groups and the diversity of bacterial communities were determined before and after storage by culture-dependent and DNA metabarcoding methods, respectively. The two-step cold storage conditions increased the mesophilic, psychrotrophic, lipolytic, and proteolytic bacterial load, without affecting the hygienic quality of milk. Among the 66 dominant and 161 subdominant taxa retrieved by DNA metabarcoding, Acinetobacter, Pseudomonas, and the lactic acid bacteria belonging to the genera Lactococcus and Streptococcus were present in almost all the raw milk samples, and their relative abundance was positively related with the total bacterial count. The storage conditions tested could be considered for eventual application in long-ripened PV cheese production to rationalize storage, transfer, and processing of raw milk.
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CASANOVA CF, SOUZA MAD, FISHER B, COLET R, MARCHESI CM, ZENI J, CANSIAN RL, BACKES GT, STEFFENS C. Bacterial growth in chicken breast fillet submitted to temperature abuse conditions. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.47920] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Bruno FISHER
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brasil
| | - Rosicler COLET
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brasil
| | | | - Jamile ZENI
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brasil
| | | | | | - Clarice STEFFENS
- Universidade Regional Integrada do Alto Uruguai e das Missões, Brasil
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Settanni L, Busetta G, Puccio V, Licitra G, Franciosi E, Botta L, Di Gerlando R, Todaro M, Gaglio R. In-Depth Investigation of the Safety of Wooden Shelves Used for Traditional Cheese Ripening. Appl Environ Microbiol 2021; 87:e0152421. [PMID: 34550766 PMCID: PMC8579974 DOI: 10.1128/aem.01524-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/13/2021] [Indexed: 01/04/2023] Open
Abstract
The main goal of this research was to characterize the bacterial diversity of the wooden boards used for aging traditional Sicilian cheeses and to evaluate whether pathogenic bacteria are associated with these surfaces. Eighteen cheese dairy factories producing three traditional cheese typologies (PDO Pecorino Siciliano, PDO Piacentinu Ennese, and Caciocavallo Palermitano) were selected within the region of Sicily. The wooden shelf surfaces were sampled by a destructive method to detach wood splinters as well as by a nondestructive brushing to collect microbial cells. Scanning electron microscopy showed the presence of almost continuous bacterial formations on the majority of the shelves analyzed. Yeasts and fungal hyphae were also visualized, indicating the complexity of the plank communities. The amplicon library of the 16S rRNA gene V3-V4 region was paired-end sequenced using the Illumina MiSeq system, allowing the identification of 14 phyla, 32 classes, 52 orders, 93 families, and 137 genera. Staphylococcus equorum was identified from all wooden surfaces, with a maximum abundance of 64.75%. Among cheese-surface-ripening bacteria, Brevibacterium and Corynebacterium were detected in almost all samples. Several halophilic (Halomonas, Tetragenococcus halophilus, Chromohalobacter, Salimicrobium, Marinococcus, Salegentibacter, Haererehalobacter, Marinobacter, and Idiomarinaceae) and moderately halophilic (Salinicoccus, Psychrobacter, and Salinisphaera) bacteria were frequently identified. Lactic acid bacteria (LAB) were present at low percentages in the genera Leuconostoc, Lactococcus, Lactobacillus, Pediococcus, and Streptococcus. The levels of viable microorganisms on the wooden shelves ranged between 2.4 and 7.8 log CFU/cm2. In some cases, LAB were counted at very high levels (8.2 log CFU/cm2). Members of the Enterobacteriaceae family were detected in a viable state for only six samples. Coagulase-positive staphylococci, Salmonella spp., and Listeria monocytogenes were not detected. Seventy-five strains belonged to the genera Leuconostoc, Lactococcus, Pediococcus, Enterococcus, Lactobacillus, and Weissella. IMPORTANCE This study provides evidence for the lack of pathogenic bacteria on the wooden shelves used to ripen internal bacterially ripened semihard and hard cheeses produced in Sicily. These three cheeses are not inoculated on their surfaces, and surface ripening is not considered to occur or, at least, does not occur at the same extent as surface-inoculated smear cheeses. Several bacterial groups identified from the wooden shelves are typically associated with smear cheeses, strongly suggesting that PDO Pecorino Siciliano, PDO Piacentinu Ennese, and Caciocavallo Palermitano cheese rind contributes to their final organoleptic profiles.
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Affiliation(s)
- Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
| | - Gabriele Busetta
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
| | - Valeria Puccio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
| | - Giuseppe Licitra
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università degli Studi di Catania, Catania, Italy
| | - Elena Franciosi
- Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all’Adige, Italy
| | - Luigi Botta
- Dipartimento di Ingegneria, UdR INSTM di Palermo, Università degli Studi di Palermo, Palermo, Italy
| | - Rosalia Di Gerlando
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
| | - Massimo Todaro
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Palermo, Italy
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11
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Barbaccia P, Busetta G, Barbera M, Alfonzo A, Garofalo G, Francesca N, Moscarelli A, Moschetti G, Settanni L, Gaglio R. Effect of grape pomace from red cultivar 'Nero d'Avola' on the microbiological, physicochemical, phenolic profile and sensory aspects of ovine Vastedda-like stretched cheese. J Appl Microbiol 2021; 133:130-144. [PMID: 34735730 DOI: 10.1111/jam.15354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/12/2021] [Accepted: 11/01/2021] [Indexed: 02/04/2023]
Abstract
AIMS The purpose of this study was to functionalize an ovine stretched cheese belonging to 'Vastedda' typology with red grape pomace powder (GPP) of Nero d'Avola cultivar and to characterize the microbiological, physicochemical, phenolic profile and sensory characteristics of the final cheeses. METHODS AND RESULTS Before cheeses production, GPP was characterized for its microbiological profile, antibacterial activity and polyphenolic content. No colonies of bacteria and yeasts were detected in the GPP. GPP showed a large inhibition spectrum against spoilage and pathogenic bacteria. Three classes of polyphenolic compounds belonging to flavan-3-ols, flavonol and phenolic acids were identified. Two cheeses [0 and 1% (w w-1 ) of GPP] were produced with pasteurized ewe's milk and commercial starter cultures. Plate counts and randomly amplified polymorphic DNA analysis demonstrated the ability of the starter strains to drive the fermentation process in the presence of GPP. GPP enrichment resulted in an increase of protein, phenolic compounds, sensory traits and reduced fat. CONCLUSIONS GPP addition to cheese represents an optimal strategy for the valorization of winemaking by-products and to obtain polyphenol-enriched cheese. SIGNIFICANCE AND IMPACT OF THE STUDY This study allowed to achieve an ovine cheese with specific physicochemical, nutraceutical and sensorial characteristics able to enlarge the functional dairy product portfolio.
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Affiliation(s)
- Pietro Barbaccia
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Gabriele Busetta
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Marcella Barbera
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Antonio Alfonzo
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Giuliana Garofalo
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Nicola Francesca
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Angelo Moscarelli
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Giancarlo Moschetti
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Palermo, Italy
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12
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Giraffa G. The Microbiota of Grana Padano Cheese. A Review. Foods 2021; 10:2632. [PMID: 34828913 PMCID: PMC8621370 DOI: 10.3390/foods10112632] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/23/2022] Open
Abstract
Grana Padano (GP) is the most appreciated and marketed cheese with Protected Designation of Origin in the world. The use of raw milk, the addition of undefined cultures (defined as 'sieroinnesto naturale'), the peculiar manufacturing proces, and the long ripening make the cheese microbiota play a decisive role in defining the quality and the organoleptic properties of the product. The knowledge on the microbial diversity associated with GP has been the subject, in recent years, of several studies aimed at understanding its composition and characteristics in order, on the one hand, to improve its technological performances and, on the other hand, to indirectly enhance the nutritional quality of the product. This review aims to briefly illustrate the main available knowledge on the composition and properties of the GP microbiota, inferred from dozens of studies carried out by both classical microbiology techniques and metagenomic analysis. The paper will essentially, but not exclusively, be focused on the lactic acid bacteria (LAB) derived from starter (SLAB) and the non-starter bacteria, both lactic (NSLAB) and non-lactic, of milk origin.
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Affiliation(s)
- Giorgio Giraffa
- Council for Agricultural Research and Economics, Research Centre for Animal Production and Aquaculture (CREA-ZA), Via Lombardo 11, 26900 Lodi, Italy
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13
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Franceschi P, Brasca M, Malacarne M, Formaggioni P, Faccia M, Natrella G, Summer A. Effects of the Cooling Temperature at the Farm on Milk Maturation and Cheesemaking Process in the Manufacture of Parmigiano Reggiano PDO Cheese. Animals (Basel) 2021; 11:ani11102835. [PMID: 34679856 PMCID: PMC8532842 DOI: 10.3390/ani11102835] [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: 08/30/2021] [Revised: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 11/16/2022] Open
Abstract
Parmigiano Reggiano is a hard PDO cheese made from bovine raw milk, whose microbiological characteristics have important repercussions on cheese quality. According to the EU official production protocol, milk temperature at the farm must not drop below 18 °C. The present research aimed to study the effect of cooling milk at the farm at 9 °C on the characteristics of milk and on the cheesemaking process and losses during manufacture. Six cheesemaking trials were performed in two different dairies. In each of them, two cheesemakings were made in parallel: one with milk kept at 9 °C (TM9) and the other with milk kept at 20 °C (TM20). TM9 milk, in comparison with TM20, showed after the creaming process a significant reduction not only of total bacterial count but also of psychrotrophic and lipolytic bacteria. At the same time, TM9 milk showed a higher creaming capacity and, consequently, a lower fat content than TM20. TM9 vat milk had worst coagulation properties than TM20, which caused slightly higher loss of fat and curd fines into the whey. Nevertheless, these changes were too small to influence the efficiency of the cheesemaking process; conversely, maintaining milk at the farm at 9 °C led to a reduction of the number of spoilage bacteria.
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Affiliation(s)
- Piero Franceschi
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126 Parma, Italy; (P.F.); (A.S.)
| | - Milena Brasca
- Institute of Sciences of Food Production, National Research Council, Via Celoria 2, IT-20133 Milan, Italy;
| | - Massimo Malacarne
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126 Parma, Italy; (P.F.); (A.S.)
- Correspondence: (M.M.); (P.F.); Tel.: +39-0521032615 (M.M.); +39-0521032614 (P.F.)
| | - Paolo Formaggioni
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126 Parma, Italy; (P.F.); (A.S.)
- Correspondence: (M.M.); (P.F.); Tel.: +39-0521032615 (M.M.); +39-0521032614 (P.F.)
| | - Michele Faccia
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70125 Bari, Italy; (M.F.); (G.N.)
| | - Giuseppe Natrella
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70125 Bari, Italy; (M.F.); (G.N.)
| | - Andrea Summer
- Department of Veterinary Science, University of Parma, Via del Taglio 10, I-43126 Parma, Italy; (P.F.); (A.S.)
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14
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Improving the Quality and Safety of Fresh Camel Meat Contaminated with Campylobacter jejuni Using Citrox, Chitosan, and Vacuum Packaging to Extend Shelf Life. Animals (Basel) 2021; 11:ani11041152. [PMID: 33920579 PMCID: PMC8072804 DOI: 10.3390/ani11041152] [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: 02/23/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 02/01/2023] Open
Abstract
Simple Summary This study aimed to investigate the influence of using 1% or 2% Citrox alone or in combination with 1% chitosan on the survival of Campylobacter jejuni in camel meat slices vacuum-packed and stored at 4 or 10 °C for 30 days. The shelf life of camel meat was 30 days longer using 1% or 2% Citrox in combination with 1% chitosan than when using Citrox alone. The reductions ranged from 4.0 to 3.5 logarithmic cycles during the storage period at both 4 and 10 °C. The quality of camel meat treated with Citrox plus chitosan was also better than that of the control meat and of meat treated with 0.85% NaCl. Abstract Camel meat is one of the most consumed meats in Arab countries. The use of natural antimicrobial agents to extend the shelf life of fresh camel meat, control Campylobacter jejuni contamination, and preserve meat quality is preferred. In this study, we determined the antimicrobial effects of using 1% or 2% Citrox alone or in combination with 1% chitosan on the survival of C. jejuni in vitro and on camel meat samples during storage at 4 or 10 °C for 30 days in vacuum packaging. We determined the total viable count (TVC (cfu/g)), total volatile base nitrogen (TVB-N) content, and pH of the treated camel meat samples every three days during storage. The shelf lives of camel meat samples treated with 2% Citrox alone or in combination with 1% chitosan were longer than those of camel meat samples treated with 1% Citrox alone or in combination with 1% chitosan at both the 4 and 10 °C storage temperatures, with TVCs of <100 cfu/g after the first ten days and six days of storage at 4 and 10 °C, respectively. The addition of Citrox (1% and 2%) and 1% chitosan to camel meat samples and the application of vacuum storage were more effective than using Citrox (1% and 2%) alone and led to a reduction in C. jejuni in approximately 4.0 and 3.5 log cycles at 4 and 10 °C, respectively. The experimental results demonstrated that using a Citrox-chitosan combination improved the quality of camel meat and enhanced the long-term preservation of fresh meat for up to or more than 30 days at 4 °C.
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15
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Effects of Milk Storage Temperature at the Farm on the Characteristics of Parmigiano Reggiano Cheese: Chemical Composition and Proteolysis. Animals (Basel) 2021; 11:ani11030879. [PMID: 33808753 PMCID: PMC8003571 DOI: 10.3390/ani11030879] [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: 02/01/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 02/06/2023] Open
Abstract
Parmigiano Reggiano is a Protected Designation of Origin (PDO) cheese whose official production protocol provides that milk cannot be stored at less than 18 °C at the farm. The possibility of refrigerating milk at the farm is highly debated, since it should allow for the limiting of bacterial growth, thus improving the quality of the cheese. The present research aimed to study the influence of storing the milk at 9 °C on the chemical composition and proteolysis during the ripening of Parmigiano Reggiano cheese. The experimentation considered six cheese-making trials, in which both evening and morning milks were subdivided into two parts that were maintained at 9 and 20 °C. After Parmigiano Reggiano cheese-making, one of the twin wheels obtained was analyzed after 21 months of ripening. From each cheese, two different samples were taken, one from the inner zone, and the other from the outer zone. The results of the chemical analyses evidenced that milk storage at 9 °C significantly (p ≤ 0.05) influenced fat, crude protein, soluble nitrogen and peptone nitrogen contents. Nevertheless, the differences observed with respect to the cheese obtained with milk stored under standard condition were very small and should be considered within the "normal variations" of Parmigiano Reggiano chemical characteristics.
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16
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Barbaccia P, Francesca N, Gerlando RD, Busetta G, Moschetti G, Gaglio R, Settanni L. Biodiversity and dairy traits of indigenous milk lactic acid bacteria grown in presence of the main grape polyphenols. FEMS Microbiol Lett 2021; 367:5819959. [PMID: 32286619 DOI: 10.1093/femsle/fnaa066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/10/2020] [Indexed: 01/17/2023] Open
Abstract
The present work was developed to select lactic acid bacteria (LAB) to be used as starter cultures in functional cheese production. The indigenous milk LAB populations were isolated from fermented raw ewes' milks (four bulks) added with 0.5 mg/mL of nine polyphenols commonly found in winery by-products. After 48 h of fermentation, all milks were characterized by an increase of LAB levels of about 3-4 Log cycles. All different colonies were purified and characterized for the main physiological and biochemical traits and then differentiated genetically at strain level and identified. Ten species belonging to the LAB genera Lactobacillus, Streptococcus, Enterococcus, Leuconostoc and Lactococcus were identified. Only Lactococcus lactis and Leuconostoc mesenteroides strains were evaluated for the technological traits including acidification and autolytic kinetics, diacetyl formation, exopolysaccharide production and generation of antimicrobial compounds. A total of four strains (Mise36, Mise94 Mise169 and Mise190) belonging to Lc. lactis displayed potential for production of cheeses containing grape polyphenols.
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Affiliation(s)
- Pietro Barbaccia
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Nicola Francesca
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Rosalia Di Gerlando
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Gabriele Busetta
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Giancarlo Moschetti
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy
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17
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Gaglio R, Restivo I, Barbera M, Barbaccia P, Ponte M, Tesoriere L, Bonanno A, Attanzio A, Di Grigoli A, Francesca N, Moschetti G, Settanni L. Effect on the Antioxidant, Lipoperoxyl Radical Scavenger Capacity, Nutritional, Sensory and Microbiological Traits of an Ovine Stretched Cheese Produced with Grape Pomace Powder Addition. Antioxidants (Basel) 2021; 10:antiox10020306. [PMID: 33671122 PMCID: PMC7922181 DOI: 10.3390/antiox10020306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 12/18/2022] Open
Abstract
An innovative ovine cheese enriched with red grape pomace powder (GPP) was produced to improve the functional properties of Vastedda cheese typology. Vastedda cheese making was performed adding GPP and four selected Lactococcus lactis strains (Mise36, Mise94, Mise169 and Mise190). For each strain, 40 L of pasteurized ewe's milk was divided into two aliquots representing control and experimental trials. Control cheese (CC) production did not contain GPP, while the experimental cheese (EC) production was enriched with 1% (w/w) GPP. GPP did not slow down starter development and acid generation. Plate counts and randomly amplified polymorphic DNA (RAPD)-PCR analysis confirmed the dominance of the starters in all trials. The evolution of the physicochemical parameters showed that EC productions were characterized by lower fat content, higher protein content, and higher values of secondary lipid oxidation. Sensory evaluation indicated that the cheeses produced with the strain Mise94 were those more appreciated by the judges. Thus, the last cheeses were investigated for some functional aspects: GPP enrichment significantly increased antioxidant activity and lipoperoxyl radical scavenger capacity, confirming that grape polyphenol inclusion in cheese represents an optimal strategy for the valorization of ovine cheeses as well as winemaking industry by-products.
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Affiliation(s)
- Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Ignazio Restivo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Via Archirafi 34, 90123 Palermo, Italy; (I.R.); (L.T.); (A.A.)
| | - Marcella Barbera
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Pietro Barbaccia
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Marialetizia Ponte
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Luisa Tesoriere
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Via Archirafi 34, 90123 Palermo, Italy; (I.R.); (L.T.); (A.A.)
| | - Adriana Bonanno
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Alessandro Attanzio
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Via Archirafi 34, 90123 Palermo, Italy; (I.R.); (L.T.); (A.A.)
| | - Antonino Di Grigoli
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Nicola Francesca
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Giancarlo Moschetti
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali, Ed. 5, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy; (R.G.); (M.B.); (P.B.); (M.P.); (A.B.); (A.D.G.); (N.F.); (G.M.)
- Correspondence: ; Tel.: +39-091-23896043; Fax: +39-091-6515531
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18
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Gaglio R, Todaro M, Settanni L. Improvement of Raw Milk Cheese Hygiene through the Selection of Starter and Non-Starter Lactic Acid Bacteria: The Successful Case of PDO Pecorino Siciliano Cheese. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1834. [PMID: 33668630 PMCID: PMC7917940 DOI: 10.3390/ijerph18041834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/17/2022]
Abstract
This review article focuses on the technological aspects and microbiological critical points of pressed-cooked cheeses processed from raw ewe's milk without the inoculation of starter cultures, in particular "Pecorino" cheese typology produced in Italy. After showing the composition of the biofilms adhering to the surface of the traditional dairy equipment (mainly wooden vat used to collect milk) and the microbiological characteristics of PDO Pecorino Siciliano cheese manufactured throughout Sicily, this cheese is taken as a case study to develop a strategy to improve its hygienic and safety characteristics. Basically, the natural lactic acid bacterial populations of fresh and ripened cheeses were characterized to select an autochthonous starter and non-starter cultures to stabilize the microbial community of PDO Pecorino Siciliano cheese. These bacteria were applied at a small scale level to prove their in situ efficacy, and finally introduced within the consortium for protection and promotion of this cheese to disseminate their performances to all dairy factories. The innovation in PDO Pecorino Siciliano cheese production was proven to be respectful of the traditional protocol, the final cheeses preserved their typicality, and the general cheese safety was improved. An overview of the future research prospects is also reported.
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Affiliation(s)
| | | | - Luca Settanni
- Department of Agricultural, Food and Forestry Science, University of Palermo, Viale delle Scienze 4, 90128 Palermo, Italy; (R.G.); (M.T.)
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19
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Palmeri M, Mancuso I, Gaglio R, Arcuri L, Barreca S, Barbaccia P, Scatassa ML. Identification and evaluation of antimicrobial resistance of enterococci isolated from raw ewes' and cows' milk collected in western Sicily: a preliminary investigation. Ital J Food Saf 2020; 9:8406. [PMID: 33532367 PMCID: PMC7844583 DOI: 10.4081/ijfs.2020.8406] [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: 07/16/2019] [Accepted: 02/04/2020] [Indexed: 01/16/2023] Open
Abstract
The present work was carried out to investigate the Antimicrobial Resistance (AMR) of enterococci isolated from raw ewes' and cows' milk. The samples were collected from eighteen semi-extensive dairy sheep and cow farms throughout western Sicily. Plate counts, carried out on Rapid Enterococcus Agar commonly used to detect food enterococci, revealed a maximal enterococcal concentration of approximately 4.58 Log Colony Forming Unit (CFU)/mL. Colonies were isolated and differentiated based on genetic analysis by Randomly Amplified Polymorphic DNA (RAPD)-PCR. Thirty-eight different strains were identified. Analysis by a species-specific multiplex PCR assay grouped the strains into three Enterococcus species such as Enterococcus durans, Enterococcus faecalis and Enterococcus faecium. The 38 strains were also investigated for their antimicrobial resistance by a phenotypic approach. All 38 Enterococcus displayed resistance to at least one or more of the antimicrobials tested confirmed that the dairy enterococci could be a vector for the dissemination of antimicrobial resistance. This work showed that enterococci with AMR traits are commonly present in semiextensive dairy sheep and cow farms of western Sicily pointed out the relevance of informing dairy makers and veterinary regarding the antimicrobial use in order to mitigate problems of public health and veterinary medicine.
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Affiliation(s)
- Marisa Palmeri
- Institute for Experimental Veterinary Medicine of Sicily A. Mirri, Palermo
| | - Isabella Mancuso
- Institute for Experimental Veterinary Medicine of Sicily A. Mirri, Palermo
| | - Raimondo Gaglio
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy
| | | | - Santino Barreca
- Institute for Experimental Veterinary Medicine of Sicily A. Mirri, Palermo
| | - Pietro Barbaccia
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy
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20
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Carvalheira A, Silva J, Teixeira P. Acinetobacter spp. in food and drinking water - A review. Food Microbiol 2020; 95:103675. [PMID: 33397609 DOI: 10.1016/j.fm.2020.103675] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 01/01/2023]
Abstract
Acinetobacter spp. has emerged as a pathogen of major public health concern due to their increased resistance to antibiotics and their association with a wide range of nosocomial infections, community-acquired infections and war and natural disaster-related infections. It is recognized as a ubiquitous organism however, information about the prevalence of different pathogenic species of this genus in food sources and drinking water is scarce. Since the implementation of molecular techniques, the role of foods as a source of several species, including the Acinetobacter baumannii group, has been elucidated. Multidrug resistance was also detected among Acinetobacter spp. isolated from food products. This highlights the importance of foods as potential sources of dissemination of Acinetobacter spp. between the community and clinical environments and reinforces the need for further investigations on the potential health risks of Acinetobacter spp. as foodborne pathogens. The aim of this review was to summarize the published data on the occurrence of Acinetobacter spp. in different food sources and drinking water. This information should be taken into consideration by those responsible for infection control in hospitals and other healthcare facilities.
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Affiliation(s)
- Ana Carvalheira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Joana Silva
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Paula Teixeira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
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YEHIA HM, AL-MASOUD AH, ALSAWMAHI ON, ALJAHANI AH, EL-DIN MFS. Effects of citrox treatment on the survival of Methicillin-Resistant Staphylococcus aureus (MRSA) in chicken fillets packed under vacuum. FOOD SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1590/fst.13819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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22
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Terzić-Vidojević A, Veljović K, Tolinački M, Živković M, Lukić J, Lozo J, Fira Đ, Jovčić B, Strahinić I, Begović J, Popović N, Miljković M, Kojić M, Topisirović L, Golić N. Diversity of non-starter lactic acid bacteria in autochthonous dairy products from Western Balkan Countries - Technological and probiotic properties. Food Res Int 2020; 136:109494. [PMID: 32846575 DOI: 10.1016/j.foodres.2020.109494] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023]
Abstract
The aim of this review was to summarize the data regarding diversity of non-starter lactic acid bacteria (NSLAB) isolated from various artisanal dairy products manufactured in Western Balkan Countries. The dairy products examined were manufactured from raw cow's, sheep's or goat's milk or mixed milk, in the traditional way without the addition of commercial starter cultures. Dairy products such as white brined cheese, fresh cheese, hard cheese, yogurt, sour cream and kajmak were sampled in the households of Serbia, Croatia, Slovenia, Bosnia and Herzegovina, Montenegro, and North Macedonia. It has been established that the diversity of lactic acid bacteria (LAB) from raw milk artisanal dairy products is extensive. In the reviewed literature, 28 LAB species and a large number of strains belonging to the Lactobacillus, Lactococcus, Enterococcus, Streptococcus, Pediococcus, Leuconostoc and Weissella genera were isolated from various dairy products. Over 3000 LAB strains were obtained and characterized for their technological and probiotic properties including: acidification and coagulation of milk, production of aromatic compounds, proteolytic activity, bacteriocins production and competitive exclusion of pathogens, production of exopolysaccharides, aggregation ability and immunomodulatory effect. Results show that many of the isolated NSLAB strains had one, two or more of the properties mentioned. The data presented emphasize the importance of artisanal products as a valuable source of NSLAB with unique technological and probiotic features important both as a base for scientific research as well as for designing novel starter cultures for functional dairy food.
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Affiliation(s)
- Amarela Terzić-Vidojević
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia.
| | - Katarina Veljović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Maja Tolinački
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Milica Živković
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Jovanka Lukić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Jelena Lozo
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
| | - Đorđe Fira
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
| | - Branko Jovčić
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
| | - Ivana Strahinić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Jelena Begović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Nikola Popović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Marija Miljković
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Milan Kojić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Ljubiša Topisirović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
| | - Nataša Golić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade 152, Serbia
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Kamimura BA, Cabral L, Noronha MF, Baptista RC, Nascimento HM, Sant'Ana AS. Amplicon sequencing reveals the bacterial diversity in milk, dairy premises and Serra da Canastra artisanal cheeses produced by three different farms. Food Microbiol 2020; 89:103453. [PMID: 32138999 DOI: 10.1016/j.fm.2020.103453] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 11/17/2019] [Accepted: 02/03/2020] [Indexed: 01/28/2023]
Abstract
In this work, the amplicon sequencing of the 16 S rRNA gene was employed to investigate the bacterial diversity in ingredients, processing environment, and ripened cheeses collected from three farms producing Serra da Canastra artisanal cheese. The data obtained indicated a remarkable variability in the bacteria consortia of the milk, whey, and environmental samples collected in farms 1, 2, and 3, despite their location in the same city. On the other hand, the starter culture and final product (ripened cheese) presented more constant and similar microbiota no matter the farm. The findings suggest that Streptococcus and Lactococcus have competitive advantages throughout Serra da Canastra cheese-making/ripening, which is crucial for their high relative abundance in the final products. An exploratory assessment based on sequencing data available in the literature showed that the Serra da Canastra cheeses sequences clustered with specific cheese varieties that are also made from raw milk but ripened for very different periods. The findings of this study highlight that despite the variability of milk and whey microbiota among the three farms, the starter culture ("pingo") has strong relevance in shaping the microbiota of the final product.
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Affiliation(s)
- Bruna A Kamimura
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Lucélia Cabral
- Center for Research in Energy and Materials (CNPEM), Campinas, SP, Brazil; Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | | | - Rafaela C Baptista
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Henry M Nascimento
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
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Yehia HM, Elkhadragy MF, Al-Megrin WA, Al-Masoud AH. Citrox Improves the Quality and Shelf Life of Chicken Fillets Packed under Vacuum and Protects against Some Foodborne Pathogens. Animals (Basel) 2019; 9:ani9121062. [PMID: 31810216 PMCID: PMC6941069 DOI: 10.3390/ani9121062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/11/2019] [Accepted: 11/25/2019] [Indexed: 11/16/2022] Open
Abstract
Natural antibacterial agents such as citrox are effective against many foodborne pathogens and foods contaminated with bacteria. We studied the antimicrobial effects of citrox solutions (1% and 2%) on the total viable counts of methicillin-resistant Staphylococcus aureus (MRSA) in chicken meat fillets. The total coliform group counts found in the chicken samples were also determined. The samples were treated with S. aureus at a concentration of 106 colony-forming units (cfu)/g of meat and vacuum-packed (VP) at 4 °C for 3, 6, 9, 12, 15, 18, and 21 days. We also studied the effect of citrox on the total volatile basic nitrogen (TVBN) content and pH changes during the storage period of the meat samples. The results revealed that citrox inhibited the growth of MRSA in the chicken fillets. The total viable counts of MRSA decreased after treatment with 2% citrox in all treated samples that were stored at 4 °C by approximately 2 log units compared with the samples inoculated with S. aureus (Chicken-Staph groups) after 3, 6, 9, and 12 days of storage, and by approximately 1 log unit compared with the control samples treated with salt (Chicken-Salt groups) after 3, 6, and 9 days of storage. TVBN was reduced in the Chicken-Citrox-treated samples stored at 4 °C compared with the Chicken-Staph- and Chicken-Salt-treated samples. The results indicated that citrox is effective in reducing the total counts of MRSA and in improving the quality of chicken during the first three days of storage by reducing the number of bacteria by 1 log unit and extending the shelf life of chicken.
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Affiliation(s)
- Hany Mohamed Yehia
- Department of Food Science and Nutrition, College of Food and Agriculture Science, King Saud University, Riyadh 11451, Saudi Arabia
- Department of Food Science and Nutrition, Faculty of Home Economics, Helwan University, Cairo 11221, Egypt
- Correspondence:
| | - Manal Fawzy Elkhadragy
- Biology Department, Faculty of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia (W.A.A.-M.)
- Zoology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Wafa Abdullah Al-Megrin
- Biology Department, Faculty of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia (W.A.A.-M.)
| | - Abdulrahman Hamad Al-Masoud
- Department of Food Science and Nutrition, College of Food and Agriculture Science, King Saud University, Riyadh 11451, Saudi Arabia
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25
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Gaglio R, Todaro M, Scatassa ML, Franciosi E, Corona O, Mancuso I, Di Gerlando R, Cardamone C, Settanni L. Transformation of raw ewes' milk applying “Grana” type pressed cheese technology: Development of extra-hard “Gran Ovino” cheese. Int J Food Microbiol 2019; 307:108277. [DOI: 10.1016/j.ijfoodmicro.2019.108277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/03/2019] [Accepted: 07/27/2019] [Indexed: 11/29/2022]
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26
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Gaglio R, Gentile C, Bonanno A, Vintaloro L, Perrone A, Mazza F, Barbaccia P, Settanni L, Di Grigoli A. Effect of saffron addition on the microbiological, physicochemical, antioxidant and sensory characteristics of yoghurt. INT J DAIRY TECHNOL 2018. [DOI: 10.1111/1471-0307.12569] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raimondo Gaglio
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
| | - Carla Gentile
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Viale delle Scienze Palermo 90128 Italy
| | - Adriana Bonanno
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
| | - Lucia Vintaloro
- Sezione Operativa Periferica di Assistenza Tecnica no. 65 – Corleone Ente Sviluppo Agricolo Via Libertà 203 Palermo 90143 Italy
| | - Anna Perrone
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Viale delle Scienze Palermo 90128 Italy
| | - Francesca Mazza
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
| | - Pietro Barbaccia
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
| | - Antonino Di Grigoli
- Dipartimento Scienze Agrarie, Alimentari e Forestali (SAAF) Università degli Studi di Palermo Viale delle Scienze 4 Palermo 90128 Italy
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Abstract
The present study focused on the utilisation of High Intensity Light Pulses (HILP) treatment to preserve mozzarella cheese. First, the susceptibility of Pseudomonas fluorescens and Enterobacteriaceae to HILP (fluences from 0·39 to 28·0 J/cm2) in a transparent liquid was evaluated (in-vitro tests). Afterwards, the effects on inoculated mozzarella cheese were also assessed. Then untreated (Control) and HILP treated samples were packaged and stored at 10 °C for 2 weeks. Enterobacteriaceae, Pseudomonas spp. and pH were monitored during storage. In a transparent liquid (in-vitro tests) there was a significant microbial inactivation just with 2 s of treatment. On the inoculated cheese a relevant microbial reduction of about 1 log cycle was observed, according to the exposure to the treatments. For Pseudomonas spp. in particular, in the treated samples, the microbiological acceptability limit (106 cfu/g) was never reached after 2 weeks of refrigerated storage. To sum up, the efficacy of this treatment is very interesting because a microbial reduction was observed in treated samples. HILP treatment is able to control the microbial growth and may be considered a promising way to decontaminate the surface of mozzarella cheese.
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Vara Martínez JADL, García Higuera A, Román Esteban M, Romero Asensio J, Carmona Delgado M, Berruga I, Molina A. Monitoring bulk milk quality by an integral traceability system of milk. JOURNAL OF APPLIED ANIMAL RESEARCH 2017. [DOI: 10.1080/09712119.2017.1403327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Juan Angel de la Vara Martínez
- Department of Agroforestry Technology and Science and Genetics, ETSIAM-IDR, University of Castilla-La Mancha, Albacete, Spain
| | - Andrés García Higuera
- AutoLog Group, School of Industrial Engineering, University of Castilla-La Mancha, Ciudad Real, Spain
| | | | - Jesús Romero Asensio
- Interprofessional Dairy Laboratory of Castilla-La Mancha (LILCAM), Talavera de la Reina, Spain
| | - Manuel Carmona Delgado
- School of Doctoral Studies & Research, Universidad Europea de Madrid, Villaviciosa de Odón, Spain
| | - Isabel Berruga
- Department of Agroforestry Technology and Science and Genetics, ETSIAM-IDR, University of Castilla-La Mancha, Albacete, Spain
| | - Ana Molina
- Department of Agroforestry Technology and Science and Genetics, ETSIAM-IDR, University of Castilla-La Mancha, Albacete, Spain
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29
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Lacivita V, Conte A, Manzocco L, Plazzotta S, Zambrini VA, Del Nobile MA, Nicoli MC. Surface UV-C light treatments to prolong the shelf-life of Fiordilatte cheese. INNOV FOOD SCI EMERG 2016. [DOI: 10.1016/j.ifset.2016.06.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Microbial Activation of Wooden Vats Used for Traditional Cheese Production and Evolution of Neoformed Biofilms. Appl Environ Microbiol 2015; 82:585-95. [PMID: 26546430 DOI: 10.1128/aem.02868-15] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/04/2015] [Indexed: 11/20/2022] Open
Abstract
Three Lactococcus lactis subsp. cremoris strains were used to develop ad hoc biofilms on the surfaces of virgin wooden vats used for cheese production. Two vats (TZ) were tested under controlled conditions (pilot plant), and two vats (TA) were tested under uncontrolled conditions (industrial plant). In each plant, one vat (TA1 and TZ1) was used for the control, traditional production of PDO Vastedda della Valle del Belìce (Vastedda) cheese, and one (TA2 and TZ2) was used for experimental production performed after lactococcal biofilm activation and the daily addition of a natural whey starter culture (NWSC). Microbiological and scanning electron microscopy analyses showed differences in terms of microbial levels and composition of the neoformed biofilms. The levels of the microbial groups investigated during cheese production showed significant differences between the control trials and between the control and experimental trials, but the differences were not particularly marked between the TA2 and TZ2 productions, which showed the largest numbers of mesophilic lactic acid bacterium (LAB) cocci. LAB populations were characterized phenotypically and genotypically, and 44 dominant strains belonging to 10 species were identified. Direct comparison of the polymorphic profiles of the LAB collected during cheese making showed that the addition of the NWSC reduced their biodiversity. Sensory evaluation showed that the microbial activation of the wooden vats with the multistrain Lactococcus culture generated cheeses with sensory attributes comparable to those of commercial cheese. Thus, neoformed biofilms enable a reduction of microbial variability and stabilize the sensorial attributes of Vastedda cheese.
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31
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Coexistence of Lactic Acid Bacteria and Potential Spoilage Microbiota in a Dairy Processing Environment. Appl Environ Microbiol 2015; 81:7893-904. [PMID: 26341209 DOI: 10.1128/aem.02294-15] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 09/01/2015] [Indexed: 11/20/2022] Open
Abstract
Microbial contamination in food processing plants can play a fundamental role in food quality and safety. In this study, the microbiota in a dairy plant was studied by both 16S rRNA- and 26S rRNA-based culture-independent high-throughput amplicon sequencing. Environmental samples from surfaces and tools were studied along with the different types of cheese produced in the same plant. The microbiota of environmental swabs was very complex, including more than 200 operational taxonomic units with extremely variable relative abundances (0.01 to 99%) depending on the species and sample. A core microbiota shared by 70% of the samples indicated a coexistence of lactic acid bacteria with a remarkable level of Streptococcus thermophilus and possible spoilage-associated bacteria, including Pseudomonas, Acinetobacter, and Psychrobacter, with a relative abundance above 50%. The most abundant yeasts were Kluyveromyces marxianus, Yamadazyma triangularis, Trichosporon faecale, and Debaryomyces hansenii. Beta-diversity analyses showed a clear separation of environmental and cheese samples based on both yeast and bacterial community structure. In addition, predicted metagenomes also indicated differential distribution of metabolic pathways between the two categories of samples. Cooccurrence and coexclusion pattern analyses indicated that the occurrence of potential spoilers was excluded by lactic acid bacteria. In addition, their persistence in the environment can be helpful to counter the development of potential spoilers that may contaminate the cheeses, with possible negative effects on their microbiological quality.
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Scatassa ML, Gaglio R, Macaluso G, Francesca N, Randazzo W, Cardamone C, Di Grigoli A, Moschetti G, Settanni L. Transfer, composition and technological characterization of the lactic acid bacterial populations of the wooden vats used to produce traditional stretched cheeses. Food Microbiol 2015; 52:31-41. [PMID: 26338114 DOI: 10.1016/j.fm.2015.06.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 06/10/2015] [Accepted: 06/20/2015] [Indexed: 10/23/2022]
Abstract
The biofilms of 12 wooden vats used for the production of the traditional stretched cheeses Caciocavallo Palermitano and PDO Vastedda della valle del Belìce were investigated. Salmonella spp. and Listeria monocytogenes were never detected. Total coliforms were at low numbers with Escherichia coli found only in three vats. Coagulase-positive staphylococci (CPS) were below the enumeration limit, whereas lactic acid bacteria (LAB) dominated the surfaces of all vats. In general, the dominance was showed by coccus LAB. Enterococci were estimated at high numbers, but usually between 1 and 2 Log cycles lower than other LAB. LAB populations were investigated at species and strain level and for their technological properties relevant in cheese production. Eighty-five strains were analysed by a polyphasic genetic approach and allotted into 16 species within the genera Enterococcus, Lactobacillus, Lactococcus, Leuconostoc, Pediococcus and Streptococcus. Enterococcus faecium was found in all wooden vats and the species most frequently isolated were Enterococcus faecalis, Lactococcus lactis, Leuconostoc mesenteroides, Pediococcus acidilactici and Streptococcus thermophilus. The study of the quantitative data on acidification rate, autolysis kinetics, diacetyl production, antibacterial compound generation and proteolysis by cluster and principal component analysis led to the identification of some strains with promising dairy characteristics. Interestingly, a consistent percentage of LAB was bacteriocin-like inhibitory substances (BLIS) producer. Thus, the microbial biofilms of the wooden vats analysed in this study might contribute actively to the stability of the final cheeses.
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Affiliation(s)
- Maria Luisa Scatassa
- Istituto Zooprofilattico Sperimentale della Sicilia "Adelmo Mirri", Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Raimondo Gaglio
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy
| | - Giusi Macaluso
- Istituto Zooprofilattico Sperimentale della Sicilia "Adelmo Mirri", Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Nicola Francesca
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy
| | - Walter Randazzo
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy
| | - Cinzia Cardamone
- Istituto Zooprofilattico Sperimentale della Sicilia "Adelmo Mirri", Via G. Marinuzzi 3, 90129, Palermo, Italy
| | - Antonino Di Grigoli
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy
| | - Giancarlo Moschetti
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy
| | - Luca Settanni
- Dipartimento Scienze Agrarie e Forestali, Università di Palermo, Viale delle Scienze 4, 90128, Palermo, Italy.
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Caputo L, Quintieri L, Bianchi DM, Decastelli L, Monaci L, Visconti A, Baruzzi F. Pepsin-digested bovine lactoferrin prevents Mozzarella cheese blue discoloration caused by Pseudomonas fluorescens. Food Microbiol 2014; 46:15-24. [PMID: 25475261 DOI: 10.1016/j.fm.2014.06.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 06/06/2014] [Accepted: 06/20/2014] [Indexed: 11/17/2022]
Abstract
The aim of this work was to check the efficacy of bovine lactoferrin hydrolyzed by pepsin (LFH) to prevent blue discoloration of Mozzarella cheese delaying the growth of the related spoilage bacteria. Among 64 Pseudomonas fluorescens strains, isolated from 105 Mozzarella samples, only ten developed blue discoloration in cold-stored Mozzarella cheese slices. When Mozzarella cheese samples from dairy were treated with LFH and inoculated with a selected P. fluorescens strain, no pigmentation and changes in casein profiles were found up to 14 days of cold storage. In addition, starting from day 5, the count of P. fluorescens spoiling strain was steadily ca. one log cycle lower than that of LFH-free samples. ESI-Orbitrap-based mass spectrometry analyses allowed to reveal the pigment leucoindigoidine only in the blue LFH-free cheese samples indicating that this compound could be considered a chemical marker of this alteration. For the first time, an innovative mild approach, based on the antimicrobial activity of milk protein hydrolysates, for counteracting blue Mozzarella event and controlling psychrotrophic pigmenting pseudomonads, is here reported.
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Affiliation(s)
- Leonardo Caputo
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy.
| | - Laura Quintieri
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Daniela Manila Bianchi
- S.C. Controllo Alimenti e Igiene delle Produzioni, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna, 148, 10154 Torino, Italy
| | - Lucia Decastelli
- S.C. Controllo Alimenti e Igiene delle Produzioni, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna, 148, 10154 Torino, Italy
| | - Linda Monaci
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Angelo Visconti
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Federico Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
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34
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Settanni L, Moschetti G. New trends in technology and identity of traditional dairy and fermented meat production processes: Preservation of typicality and hygiene. Trends Food Sci Technol 2014. [DOI: 10.1016/j.tifs.2014.02.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Gatti M, Bottari B, Lazzi C, Neviani E, Mucchetti G. Invited review: Microbial evolution in raw-milk, long-ripened cheeses produced using undefined natural whey starters. J Dairy Sci 2014; 97:573-91. [DOI: 10.3168/jds.2013-7187] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 10/09/2013] [Indexed: 11/19/2022]
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Abstract
The microbial composition of artisan and industrial animal rennet pastes was studied by using both culture-dependent and -independent approaches. Pyrosequencing targeting the 16S rRNA gene allowed to identify 361 operational taxonomic units (OTUs) to the genus/species level. Among lactic acid bacteria (LAB), Streptococcus thermophilus and some lactobacilli, mainly Lactobacillus crispatus and Lactobacillus reuteri, were the most abundant species, with differences among the samples. Twelve groups of microorganisms were targeted by viable plate counts revealing a dominance of mesophilic cocci. All rennets were able to acidify ultrahigh-temperature-processed (UHT) milk as shown by pH and total titratable acidity (TTA). Presumptive LAB isolated at the highest dilutions of acidified milks were phenotypically characterized, grouped, differentiated at the strain level by randomly amplified polymorphic DNA (RAPD)-PCR analysis, and subjected to 16S rRNA gene sequencing. Only 18 strains were clearly identified at the species level, as Enterococcus casseliflavus, Enterococcus faecium, Enterococcus faecalis, Enterococcus lactis, Lactobacillus delbrueckii, and Streptococcus thermophilus, while the other strains, all belonging to the genus Enterococcus, could not be allotted into any previously described species. The phylogenetic analysis showed that these strains might represent different unknown species. All strains were evaluated for their dairy technological performances. All isolates produced diacetyl, and 10 of them produced a rapid pH drop in milk, but only 3 isolates were also autolytic. This work showed that animal rennet pastes can be sources of LAB, mainly enterococci, that might contribute to the microbial diversity associated with dairy productions.
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Sturaro E, Marchiori E, Cocca G, Penasa M, Ramanzin M, Bittante G. Dairy systems in mountainous areas: Farm animal biodiversity, milk production and destination, and land use. Livest Sci 2013. [DOI: 10.1016/j.livsci.2013.09.011] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Malacarne M, Summer A, Franceschi P, Formaggioni P, Pecorari M, Panari G, Vecchia P, Sandri S, Fossa E, Scotti C, Mariani P. Effects of storage conditions on physico-chemical characteristics, salt equilibria, processing properties and microbial development of raw milk. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.10.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Franciosi E, Gardini F, Monfredini L, Tabanelli G, Fabris A, Endrizzi I, Poznanski E, Gasperi F, Cavazza A. Does milk treatment before cheesemaking affect microbial and chemical traits of ripened cheese? Grana Trentino as a case study. J Dairy Sci 2012; 95:5485-94. [PMID: 22863106 DOI: 10.3168/jds.2011-4693] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Accepted: 04/28/2012] [Indexed: 11/19/2022]
Abstract
The aim of this study was to evaluate the influence of different storage temperatures and delivery system of the milk on the microbiological and physicochemical characteristics of Grana Trentino, a long-ripened hard-cooked Italian cheese. In particular, 3 kinds of milk storage and delivery were studied: milk delivered to the dairy in the traditional manner without temperature control, milk delivered at 18°C, and milk stored at the farm and delivered at 12°C. Milk, natural whey starter, and cheeses after 18 mo of ripening were sampled for microbiological profiles, physicochemical analysis, and proteolysis evaluation, and a study of cheese volatile compounds through a solid-phase microextraction gas chromatography-mass spectrometry technique was performed. Milk microbiota was not affected by any of the treatments. At the end of ripening, free fatty acid and ester contents were significantly higher in cheeses from milk without temperature control. This was probably due to the milk delivery to the dairy in churns causing the fat globule membrane break during transport and, consequently, a greater release of fat and deeper lipolysis. Milk refrigeration at 12°C for 12h before delivery affected the distribution of nitrogen fractions in cheeses. Lower temperatures of milk storage favored a larger soluble nitrogen fraction and greater cheese proteolysis, probably caused by an enhanced plasmin activity. From this work, it is concluded that both milk temperature storage and transport system could affect cheese ripening, leading to significant differences in chemical compounds: if milk was delivered by churns, higher free fatty acid and ester content in cheeses was observed; if milk was stored at 12°C for 12h before delivery, greater cheese proteolysis was induced with consequent faster ripening.
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Affiliation(s)
- E Franciosi
- IASMA Research and Innovation Centre-Fondazione Edmund Mach, Food Quality and Nutrition Department, Via E. Mach 1, 38010 S. Michele a/Adige (TN), Trentino, Italy.
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Persistence of wild Streptococcus thermophilus strains on wooden vat and during the manufacture of a traditional Caciocavallo type cheese. Int J Food Microbiol 2012; 155:73-81. [DOI: 10.1016/j.ijfoodmicro.2012.01.022] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 12/19/2011] [Accepted: 01/25/2012] [Indexed: 11/20/2022]
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Endrizzi I, Fabris A, Biasioli F, Aprea E, Franciosi E, Poznanski E, Cavazza A, Gasperi F. The effect of milk collection and storage conditions on the final quality of Trentingrana cheese: Sensory and instrumental evaluation. Int Dairy J 2012. [DOI: 10.1016/j.idairyj.2011.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Zhang Q, Han Y, Cao J, Xu X, Zhou G, Zhang W. The spoilage of air-packaged broiler meat during storage at normal and fluctuating storage temperatures. Poult Sci 2012; 91:208-14. [DOI: 10.3382/ps.2011-01519] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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43
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Bittante G, Cologna N, Cecchinato A, De Marchi M, Penasa M, Tiezzi F, Endrizzi I, Gasperi F. Monitoring of sensory attributes used in the quality payment system of Trentingrana cheese. J Dairy Sci 2011; 94:5699-709. [DOI: 10.3168/jds.2011-4319] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 07/05/2011] [Indexed: 11/19/2022]
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44
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Todaro M, Francesca N, Reale S, Moschetti G, Vitale F, Settanni L. Effect of different salting technologies on the chemical and microbiological characteristics of PDO Pecorino Siciliano cheese. Eur Food Res Technol 2011. [DOI: 10.1007/s00217-011-1593-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Bittante G, Cecchinato A, Cologna N, Penasa M, Tiezzi F, De Marchi M. Factors affecting the incidence of first-quality wheels of Trentingrana cheese. J Dairy Sci 2011; 94:3700-7. [DOI: 10.3168/jds.2010-3746] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Accepted: 03/30/2011] [Indexed: 11/19/2022]
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