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Wiśniewski P, Chajęcka-Wierzchowska W, Zadernowska A. Impact of High-Pressure Processing (HPP) on Listeria monocytogenes-An Overview of Challenges and Responses. Foods 2023; 13:14. [PMID: 38201041 PMCID: PMC10778341 DOI: 10.3390/foods13010014] [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: 12/03/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
High-pressure processing (HPP) is currently one of the leading methods of non-thermal food preservation as an alternative to traditional methods based on thermal processing. The application of HPP involves the simultaneous action of a combination of several factors-pressure values (100-600 MPa), time of operation (a few-several minutes), and temperature of operation (room temperature or lower)-using a liquid medium responsible for pressure transfer. The combination of these three factors results in the inactivation of microorganisms, thus extending food shelf life and improving the food's microbiological safety. HPP can provide high value for the sensory and quality characteristics of products and reduce the population of pathogenic microorganisms such as L. monocytogenes to the required safety level. Nevertheless, the technology is not without impact on the cellular response of pathogens. L. monocytogenes cells surviving the HPP treatment may have multiple damages, which may impact the activation of mechanisms involved in the repair of cellular damage, increased virulence, or antibiotic resistance, as well as an increased expression of genes encoding pathogenicity and antibiotic resistance. This review has demonstrated that HPP is a technology that can reduce L. monocytogenes cells to below detection levels, thus indicating the potential to provide the desired level of safety. However, problems have been noted related to the possibilities of cell recovery during storage and changes in virulence and antibiotic resistance due to the activation of gene expression mechanisms, and the lack of a sufficient number of studies explaining these changes has been reported.
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Affiliation(s)
- Patryk Wiśniewski
- Department of Food Microbiology, Meat Technology and Chemistry, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland; (W.C.-W.); (A.Z.)
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2
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Natrella G, Gambacorta G, Faccia M. Application of Commercial Biopreservation Starter in Combination with MAP for Shelf-Life Extension of Burrata Cheese. Foods 2023; 12:foods12091867. [PMID: 37174405 PMCID: PMC10178730 DOI: 10.3390/foods12091867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/13/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Burrata is a fresh pasta filata cheese manufactured in Italy. Its demand on the worldwide market is constantly growing, and prolonging its shelf-life is an important challenge for the Italian dairy industry. In the present study, combining a commercial bio-protective starter and modified atmosphere packaging (MAP) was evaluated as a strategy to delay the spoilage of product quality. Three experimental samples of burrata were produced by experimental trials at the industrial level and stored for 28 days under refrigerated conditions. Two samples contained the protective starter but were packaged differently (under MAP and immersed in water), and one did not contain the starter and was packaged under MAP. A sample of burrata without a starter and immersed in water was also prepared and used as a control. The combination of MAP and bio-protective starter delayed the degradation of lactose and citric acid, used as indices of microbial activity. In fact, lower counts of Enterobacteriaceae and Pseudomonas were observed in this sample. In contrast, control burrata had the highest level of total Volatile Organic Compounds (VOC) at the end of the storage period, because of higher microbial activity. Even though all samples were judged to be unacceptable after 28 days from the sensory point of view, the sample with bio-protective starter under MAP had the best score after 21 days, obtaining a shelf-life extension of about 7 days with respect to control. In conclusion, the combination of MAP and protective starter culture could be an easy way to extend the shelf-life of burrata stored under correct refrigerated conditions.
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Affiliation(s)
- Giuseppe Natrella
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70126 Bari, Italy
| | - Giuseppe Gambacorta
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70126 Bari, Italy
| | - Michele Faccia
- Department of Soil, Plant and Food Sciences, University of Bari, Via Amendola 165/A, 70126 Bari, Italy
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3
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Ott LC, Jochum J, Burrough L, Clark S, Keener K, Mellata M. High voltage atmospheric cold plasma inactivation of Listeria monocytogenes in fresh Queso Fresco cheese. Food Microbiol 2022; 105:104007. [DOI: 10.1016/j.fm.2022.104007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 02/09/2022] [Accepted: 02/21/2022] [Indexed: 11/25/2022]
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4
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Wan Z, Misra N, Li G, Keener KM. High voltage atmospheric cold plasma treatment of Listeria innocua and Escherichia coli K-12 on Queso Fresco (fresh cheese). Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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5
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Rai DK, Gillilan RE, Huang Q, Miller R, Ting E, Lazarev A, Tate MW, Gruner SM. High-pressure small-angle X-ray scattering cell for biological solutions and soft materials. J Appl Crystallogr 2021; 54:111-122. [PMID: 33841059 PMCID: PMC7941318 DOI: 10.1107/s1600576720014752] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/06/2020] [Indexed: 11/10/2022] Open
Abstract
Pressure is a fundamental thermodynamic parameter controlling the behavior of biological macromolecules. Pressure affects protein denaturation, kinetic parameters of enzymes, ligand binding, membrane permeability, ion trans-duction, expression of genetic information, viral infectivity, protein association and aggregation, and chemical processes. In many cases pressure alters the molecular shape. Small-angle X-ray scattering (SAXS) is a primary method to determine the shape and size of macromolecules. However, relatively few SAXS cells described in the literature are suitable for use at high pressures and with biological materials. Described here is a novel high-pressure SAXS sample cell that is suitable for general facility use by prioritization of ease of sample loading, temperature control, mechanical stability and X-ray background minimization. Cell operation at 14 keV is described, providing a q range of 0.01 < q < 0.7 Å-1, pressures of 0-400 MPa and an achievable temperature range of 0-80°C. The high-pressure SAXS cell has recently been commissioned on the ID7A beamline at the Cornell High Energy Synchrotron Source and is available to users on a peer-reviewed proposal basis.
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Affiliation(s)
- Durgesh K. Rai
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
| | - Richard E. Gillilan
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
| | - Qingqiu Huang
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
| | - Robert Miller
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
- Department of Chemistry, Cornell University, Ithaca, NY 14853, USA
| | - Edmund Ting
- Pressure BioSciences Inc., South Easton, MA 02375, USA
| | | | - Mark W. Tate
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA
| | - Sol M. Gruner
- Cornell High Energy Synchrotron Source (CHESS), Cornell University, Ithaca, NY 14853, USA
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA
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6
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Gonçalves SM, de Melo NR, da Silva JP, Chávez DW, Gouveia FS, Rosenthal A. Antimicrobial packaging and high hydrostatic pressure: Combined effect in improving the safety of coalho cheese. FOOD SCI TECHNOL INT 2020; 27:301-312. [PMID: 32903099 DOI: 10.1177/1082013220953238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Active cellulose acetate films incorporated with oregano essential oil (antimicrobial film) were previously subjected to high hydrostatic pressure treatment (300 MPa/5 min (FHP1) or 400 MPa/10 min (FHP2)) and investigated for possible changes in their antimicrobial efficiency. In parallel, the efficiency of the antimicrobial films, high hydrostatic pressure (300 MPa/5 min or 400 MPa/10 min), or a combination of antimicrobial film and high hydrostatic pressure, was tested on coalho cheese, experimentally contaminated with Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus, stored for 21 days under refrigeration. Investigations in culture media (agar, brain-heart infusion broth, and micro-atmosphere) detected antimicrobial efficiency for all films, with or without high hydrostatic pressure, against the three bacteria. However, the data indicated that the treatment with 300 MPa/5 min may have impaired the migration of oregano essential oil from FHP1, justifying its lower efficiency in solid medium and brain-heart infusion broth. In cheese samples, the combination of antimicrobial film and 400 MPa/10 min caused greater reductions in counts for the three microorganisms, at zero time throughout the entire coalho cheese storage. Only antimicrobial film or combination (antimicrobial film and high hydrostatic pressure) were able to control microbial multiplication during the 21 days. Therefore, the results confirm that the individual use of high hydrostatic pressure (300 MPa/5 min or 400 MPa/10 min) at the level evaluated can allow bacterial multiplication during storage and that the combination of antimicrobial packaging and high hydrostatic pressure has greater potential to ensure a safer coalho cheese.
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Affiliation(s)
- Sheyla M Gonçalves
- Department of Food Science and Technology, Federal Rural University of Rio de Janeiro, Brazil
| | - Nathália R de Melo
- Department of Food Science and Technology, Federal Rural University of Rio de Janeiro, Brazil.,Department of Agribusiness Engineering, Federal Fluminense University (UFF), Brazil
| | | | - Davy Wh Chávez
- Department of Food Science and Technology, Federal Rural University of Rio de Janeiro, Brazil
| | - Fabíola S Gouveia
- Department of Food Science and Technology, Federal Rural University of Rio de Janeiro, Brazil
| | - Amauri Rosenthal
- Department of Food Science and Technology, Federal Rural University of Rio de Janeiro, Brazil.,Embrapa Food Technology, Brazil
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7
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Mennah-Govela YA, Cai H, Chu J, Kim K, Maborang MK, Sun W, Bornhorst GM. Buffering capacity of commercially available foods is influenced by composition and initial properties in the context of gastric digestion. Food Funct 2020; 11:2255-2267. [DOI: 10.1039/c9fo03033f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Buffering capacity in commercially available food products is mainly influenced by protein content, and by the interaction of protein and fat content, initial pH, and particle size distribution.
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Affiliation(s)
- Yamile A. Mennah-Govela
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Hongchang Cai
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Joseph Chu
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Kaela Kim
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Mycalia-Keila Maborang
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Weiyi Sun
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
| | - Gail M. Bornhorst
- Dept. of Biological and Agricultural Engineering
- 1308 Bainer Hall University of California
- Davis
- Davis
- USA
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8
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Dos Santos Gouvea F, Walter EH, da Rocha Ferreira EH, Tiburski JH, Deliza R, de Oliveira Godoy RL, Rosenthal A. Effects of carrot incorporation and high hydrostatic pressure processing on fresh cheese: Antilisterial activity, carotenoid degradation, and sensory characteristics. FOOD SCI TECHNOL INT 2019; 25:597-607. [PMID: 31137971 DOI: 10.1177/1082013219843394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This study was carried out to evaluate the antilisterial activity of carrot, and the impact of its incorporation on the carotenoid content in Minas Frescal cheese, combined or not with high hydrostatic pressure processing, as an alternative for the development of healthier fresh cheese free of synthetic preservatives. Cheeses were manufactured with milk added with carrot incorporation (0, 3, and 6%) and pressurized (0; 250 and 500 MPa/10 min). Total carotenoid content, α-carotene, β-carotene, lutein, consumer acceptance, and sensory characteristics were determined one day after the manufacture while Listeria innocua enumeration was evaluated up to 22 days of storage at 8 ℃. The results showed that although a decrease of over 7 log CFU g-1 in L. innocua counts was observed immediately after fresh cheese processing at 500 MPa/10 min, inactivation was not complete, as the growth of this nonpathogen surrogate during storage was observed. The addition of 6% carrot had a slight bacteriostatic effect, verified on the 15th day of storage, particularly in pressurized cheeses. On the other hand, high pressure treatment at 500 MPa/10 min increased carotenoids degradation in cheeses. Although pressurized cheeses were characterized as "rubbery," high hydrostatic pressure had no significant effect on consumer acceptance.
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Affiliation(s)
| | | | | | - Júlia H Tiburski
- 1 Food Technology Department, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rosires Deliza
- 2 Embrapa Agroindústria de Alimentos, Rio de Janeiro, Brazil
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9
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Wan Z, Pankaj S, Mosher C, Keener KM. Effect of high voltage atmospheric cold plasma on inactivation of Listeria innocua on Queso Fresco cheese, cheese model and tryptic soy agar. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.11.096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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10
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Holle MJ, Ibarra-Sánchez LA, Liu X, Stasiewicz MJ, Miller MJ. Microbial analysis of commercially available US Queso Fresco. J Dairy Sci 2018; 101:7736-7745. [DOI: 10.3168/jds.2017-14037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 05/28/2018] [Indexed: 11/19/2022]
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11
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Evert-Arriagada K, Trujillo AJ, Amador-Espejo GG, Hernández-Herrero MM. High pressure processing effect on different Listeria spp. in a commercial starter-free fresh cheese. Food Microbiol 2018; 76:481-486. [PMID: 30166177 DOI: 10.1016/j.fm.2018.07.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 11/20/2017] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
Abstract
In this study, both microbial inactivation and growth of Listeria spp. inoculated in commercial free-starter fresh cheese was evaluated after high-pressure processing (HPP). HPP conditions (300, 400, 500 and 600 MPa at 6 °C for 5 min) and inoculum level (3-4 or 6-7 log CFU/g of cheese), as well as differences among strains inoculated (Listeria innocua, L. monocytogenes CECT 4031 and L. monocytogenes Scott A) were investigated. Inactivation and generation of sublethal injury were determined after HPP using ALOA (Agar Listeria according to Ottaviani and Agosti) and TAL (Thin Agar Layer) plating methods, respectively. Listeria inactivation increased with the pressure applied, presenting some statistical differences between the employed strains, inoculum level and sublethal injury. The highest lethality values were obtained at 600 MPa for the three strains tested, although the 500 MPa treatment presented high lethality for L. innocua and L. monocytogenes CECT 4031. After treatment, L. innocua and L. monocytogenes CECT 4031 counts in fresh cheese increased gradually during cold storage. By contrast, counts in cheeses inoculated with L. monocytogenes Scott A did not change significantly (p ≥ 0.05), being this strain the most pressure resistant and with the slowest growth rate. The manuscript present information supporting that, strains with high-level resistance should be employed during inactivation studies, instead of surrogate microorganisms. Application of HPP treatments of 500 MPa and especially 600 MPa on fresh cheeses would be effective to eliminate the most resistant microorganism to a level that should not present a public health risk under normal conditions of distribution and storage.
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Affiliation(s)
- K Evert-Arriagada
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - A J Trujillo
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - G G Amador-Espejo
- Cátedras CONACYT-Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, Tepetitla de Lardizabal, 90700, Tlaxcala, Mexico
| | - M M Hernández-Herrero
- Centre d'Innovació, Recerca i Transferència en Tecnologia dels Aliments (CIRTTA), XaRTA, TECNIO, MALTA Consolider, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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12
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Hu M, Gurtler JB. Selection of Surrogate Bacteria for Use in Food Safety Challenge Studies: A Review. J Food Prot 2017; 80:1506-1536. [PMID: 28805457 DOI: 10.4315/0362-028x.jfp-16-536] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nonpathogenic surrogate bacteria are prevalently used in a variety of food challenge studies in place of foodborne pathogens such as Listeria monocytogenes, Salmonella, Escherichia coli O157:H7, and Clostridium botulinum because of safety and sanitary concerns. Surrogate bacteria should have growth characteristics and/or inactivation kinetics similar to those of target pathogens under given conditions in challenge studies. It is of great importance to carefully select and validate potential surrogate bacteria when verifying microbial inactivation processes. A validated surrogate responds similar to the targeted pathogen when tested for inactivation kinetics, growth parameters, or survivability under given conditions in agreement with appropriate statistical analyses. However, a considerable number of food studies involving putative surrogate bacteria lack convincing validation sources or adequate validation processes. Most of the validation information for surrogates in these studies is anecdotal and has been collected from previous publications but may not be sufficient for given conditions in the study at hand. This review is limited to an overview of select studies and discussion of the general criteria and approaches for selecting potential surrogate bacteria under given conditions. The review also includes a list of documented bacterial pathogen surrogates and their corresponding food products and treatments to provide guidance for future studies.
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Affiliation(s)
- Mengyi Hu
- 1 U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Food Safety and Intervention Technologies Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038-8551.,2 Department of Culinary Arts and Food Science, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104-30, USA
| | - Joshua B Gurtler
- 1 U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Food Safety and Intervention Technologies Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038-8551
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Serment-Moreno V, Fuentes C, Guerrero-Beltrán JÁ, Torres JA, Welti-Chanes J. A Gompertz Model Approach to Microbial Inactivation Kinetics by High-Pressure Processing Incorporating the Initial Counts, Microbial Quantification Limit, and Come-Up Time Effects. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1916-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Van Tassell ML, Ibarra-Sánchez LA, Hoepker GP, Miller MJ. Hot topic: Antilisterial activity by endolysin PlyP100 in fresh cheese. J Dairy Sci 2017; 100:2482-2487. [DOI: 10.3168/jds.2016-11990] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 12/12/2016] [Indexed: 11/19/2022]
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15
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Ibarra-Sánchez L, Van Tassell M, Miller M. Invited review: Hispanic-style cheeses and their association with Listeria monocytogenes. J Dairy Sci 2017; 100:2421-2432. [DOI: 10.3168/jds.2016-12116] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/14/2016] [Indexed: 11/19/2022]
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16
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Bleoancă I, Saje K, Mihalcea L, Oniciuc EA, Smole-Mozina S, Nicolau AI, Borda D. Contribution of high pressure and thyme extract to control Listeria monocytogenes in fresh cheese - A hurdle approach. INNOV FOOD SCI EMERG 2016. [DOI: 10.1016/j.ifset.2016.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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17
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Van Tassell M, Ibarra-Sánchez L, Takhar S, Amaya-Llano S, Miller M. Use of a miniature laboratory fresh cheese model for investigating antimicrobial activities. J Dairy Sci 2015; 98:8515-24. [DOI: 10.3168/jds.2015-9967] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/24/2015] [Indexed: 11/19/2022]
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18
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Ferreira M, Almeida A, Delgadillo I, Saraiva J, Cunha Â. Susceptibility ofListeria monocytogenesto high pressure processing: A review. FOOD REVIEWS INTERNATIONAL 2015. [DOI: 10.1080/87559129.2015.1094816] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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19
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Tomasula PM, Renye JA, Van Hekken DL, Tunick MH, Kwoczak R, Toht M, Leggett LN, Luchansky JB, Porto-Fett ACS, Phillips JG. Effect of high-pressure processing on reduction of Listeria monocytogenes in packaged Queso Fresco. J Dairy Sci 2014; 97:1281-95. [PMID: 24440267 DOI: 10.3168/jds.2013-7538] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 11/28/2013] [Indexed: 11/19/2022]
Abstract
The effect of high-hydrostatic-pressure processing (HPP) on the survival of a 5-strain rifampicin-resistant cocktail of Listeria monocytogenes in Queso Fresco (QF) was evaluated as a postpackaging intervention. Queso Fresco was made using pasteurized, homogenized milk, and was starter-free and not pressed. In phase 1, QF slices (12.7 × 7.6 × 1 cm), weighing from 52 to 66 g, were surface inoculated with L. monocytogenes (ca. 5.0 log10 cfu/g) and individually double vacuum packaged. The slices were then warmed to either 20 or 40°C and HPP treated at 200, 400, and 600 MPa for hold times of 5, 10, 15, or 20 min. Treatment at 600 MPa was most effective in reducing L. monocytogenes to below the detection level of 0.91 log10 cfu/g at all hold times and temperatures. High-hydrostatic-pressure processing at 40°C, 400 MPa, and hold time ≥ 15 min was effective but resulted in wheying-off and textural changes. In phase 2, L. monocytogenes was inoculated either on the slices (ca. 5.0 log10 cfu/g; ON) or in the curds (ca. 7.0 log10 cfu/g; IN) before the cheese block was formed and sliced. The slices were treated at 20°C and 600 MPa at hold times of 3, 10, and 20 min, and then stored at 4 and 10°C for 60 d. For both treatments, L. monocytogenes became less resistant to pressure as hold time increased, with greater percentages of injured cells at 3 and 10 min than at 20 min, at which the lethality of the process increased. For the IN treatment, with hold times of 3 and 10 min, growth of L. monocytogenes increased the first week of storage, but was delayed for 1 wk, with a hold time of 20 min. Longer lag times in growth of L. monocytogenes during storage at 4°C were observed for the ON treatment at hold times of 10 and 20 min, indicating that the IN treatment may have provided a more protective environment with less injury to the cells than the ON treatment. Similarly, HPP treatment for 10 min followed by storage at 4°C was the best method for suppressing the growth of the endogenous microflora with bacterial counts remaining below the level of detection for 2 out of the 3 QF samples for up to 84 d. Lag times in growth were not observed during storage of QF at 10°C. Although HPP reduced L. monocytogenes immediately after processing, a second preservation technique is necessary to control growth of L. monocytogenes during cold storage. However, the results also showed that HPP would be effective for slowing the growth of microorganisms that can shorten the shelf life of QF.
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Affiliation(s)
- P M Tomasula
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038.
| | - J A Renye
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
| | - D L Van Hekken
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
| | - M H Tunick
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
| | - R Kwoczak
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
| | - M Toht
- Dairy and Functional Foods Research Unit, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
| | | | - J B Luchansky
- Food Safety and Intervention Technologies Research Unit, and
| | | | - J G Phillips
- Office of the Area Director, United States Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038
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Inácio RS, Fidalgo LG, Santos MD, Queirós RP, Saraiva JA. Effect of high-pressure treatments on microbial loads and physicochemical characteristics during refrigerated storage of raw milk Serra da Estrela cheese samples. Int J Food Sci Technol 2013. [DOI: 10.1111/ijfs.12423] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rita S. Inácio
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Liliana G. Fidalgo
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Mauro D. Santos
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Rui P. Queirós
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
| | - Jorge A. Saraiva
- QOPNA; Department of Chemistry; University of Aveiro; 3810-193 Aveiro Portugal
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Van Hekken DL, Tunick MH, Farkye NY, Tomasula PM. Effect of hydrostatic high-pressure processing on the chemical, functional, and rheological properties of starter-free Queso Fresco. J Dairy Sci 2013; 96:6147-60. [PMID: 23972497 DOI: 10.3168/jds.2012-6212] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 07/05/2013] [Indexed: 11/19/2022]
Abstract
Queso Fresco (QF), a popular high-moisture, high-pH Hispanic-style cheese sold in the United States, underwent high-pressure processing (HPP), which has the potential to improve the safety of cheese, to determine the effects of this process on quality traits of the cheese. Starter-free, rennet-set QF (manufactured from pasteurized, homogenized milk, milled before hooping, and not pressed) was cut into 4.5- × 4.5- × 15-cm blocks and double vacuum packaged. Phase 1 of the research examined the effects of hydrostatic HPP on the quality traits of fresh QF that had been warmed to a core temperature of 20 or 40 °C; processed at 200, 400, or 600 MPa for 5, 10, or 20 min; and stored at 4 °C for 6 to 8d. Phase 2 examined the long-term effects of HPP on quality traits when QF was treated at 600 MPa for 3 or 10 min, and stored at 4 or 10 °C for up to 12 wk. Warming the QF to 40 °C before packaging and exposure to high pressure resulted in loss of free whey from the cheese into the package, lower moisture content, and harder cheese. In phase 2, the control QF, regardless of aging temperature, was significantly softer than HPP cheeses over the 12 wk of storage. Hardness, fracture stress, and fracture rigidity increased with length of exposure time and storage temperature, with minor changes in the other properties. Queso Fresco remained a bright white, weak-bodied cheese that crumbled and did not melt upon heating. Although high pressures or long processing times may be required for the elimination of pathogens, cheese producers must be aware that HPP altered the rheological properties of QF and caused wheying-off in cheeses not pressed before packaging.
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Affiliation(s)
- D L Van Hekken
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Wyndmoor, PA 19038.
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