International Dairy Journal

Fri, 11/29/2019 - 03:19
Author(s): Brian Friker, Marina Morach, Sabrina Püntener, Nicole Cernela, Jule Horlbog, Roger StephanAbstractIn recent years, popularity of raw milk has increased in many industrialised countries.This study (i) enumerated total viable counts (TVC) and Escherichia coli counts, (ii) assessed prevalence of Staphylococcus (S.) aureus, Salmonella spp. and STEC, (iii) screened for methicillin resistant...
Wed, 11/20/2019 - 03:40
Author(s): Talita Junia da Silva Cândido, Anderson Clayton da Silva, Luiz Gustavo de Matos, Maristela da Silva do Nascimento, Carlos Henrique Camargo, Rosemeire Cobo Zanella, Vera Lúcia Mores Rall, Nathália Cristina Cirone SilvaAbstractThe aim of this study was to isolate, identify and perform molecular characterisation of Staphylococcus sp. isolated from the processing chain of organic and...
Thu, 11/14/2019 - 03:23
Author(s): Valerie Weinborn, Yanhong Li, Ishita M. Shah, Hai Yu, David C. Dallas, J. Bruce German, David A. Mills, Xi Chen, Daniela BarileAbstractConsumption of mothers’ milk is associated with reduced incidence and severity of enteric infections, leading to reduced morbidity in breastfed infants. Fucosylated and sialylated human milk oligosaccharides (HMO) are important for both direct...
Wed, 11/13/2019 - 03:23
Author(s): Bin Wu, Tan Yang, Dengchao Zou, Ling Jin, Xuehua Liang, Ting Li, Ganhui Huang, Jinsheng ZhangAbstractAn accurate biosensor for rapid detection of Salmonella via low-field nuclear magnetic resonance (NMR) technology was developed. First, poly-l-lysine (PLL) containing several amino groups was modified with diethylene triamine pentacetate acid (DTPA) and gadolinium (Gd). The antibody was...
Wed, 11/13/2019 - 03:23
Author(s): Steve Flint, Phil Bremer, John Brooks, Jon Palmer, Faizan Sadiq, Brent Seale, Koon Hoong Teh, Shuyan Wu, Siti Norbaizura Md ZainAbstractBacterial contamination in dairy manufacture is a problem that can affect product quality, the economic viability of dairy product manufacture and the sustainability of the industry. Bacterial fouling of surfaces, termed biofilms, occurs at all stages...
Wed, 11/13/2019 - 03:23
Author(s): P. Quintanilla, M. Cornacchini, M.I. Hernando, M.P. Molina, I. EscricheAbstractThis study evaluated instrumental parameters (chemical composition, colour, texture and microstructure) and sensory characteristics of goat cheese (60-day maturation) made with milk spiked with oxytetracycline at different levels: 0, 50, 100 (maximum residue limit; MRL) and 200 μg kg-1. Additionally, the...
Sun, 11/03/2019 - 02:23
Author(s): Carolin Wedel, Theresa Konschelle, Anna Dettling, Mareike Wenning, Siegfried Scherer, Jörg HinichsAbstractThermophilic spore formers are prevalent contaminants in powdered milk products. In this study, we investigated whether fouling layers formed during the heat treatment of milk have protective effects on entrapped thermophilic spores. First, we developed an experimental set-up to...
Wed, 10/30/2019 - 03:24
Author(s): Hanlu Hong, Chongzhen Sun, Shuang Wei, Xia Sun, Anthony Mutukumira, Xiyang WuAbstractSalmonella is a foodborne pathogen that may cause serious neonatal disease. In this study, an isothermal real-time recombinase polymerase amplification (RPA) was established to detect Salmonella at 37 °C within 20 min, with the detection sensitivity of 103 cfu mL-1 in pure culture. In food applications...
Sun, 09/22/2019 - 03:20
Author(s): Sami Mnif, Marwa Jardak, Asma Yaich, Sami AifaAbstractThe formation of undesirable microbial biofilms in dairy industries is the main cause of chemical cleaning agent ineffectiveness. Biofilm-associated contamination represents one of the major threats to dairy industry. In this study, 197 bacterial strains were isolated from the milk collection centre and neighbouring farms. Six...
Sun, 09/22/2019 - 03:20
Author(s): Angeliki Angelopoulou, Ross Holohan, Mary C. Rea, Alicja K. Warda, Colin Hill, R. Paul RossAbstractBovine mastitis, an inflammation of the udder, is associated with increases in milk somatic cell count usually resulting from bacterial infection. We analysed 50 mastitic milk samples via cultivation, 16S rRNA sequencing and a combination of the two (culturomics) to define the complete...
Sun, 09/22/2019 - 03:20
Author(s): Emilio Francesco Ricciardi, Valentina Lacivita, Amalia Conte, Eugenio Chiaravalle, A. Vittorio Zambrini, Matteo A. Del NobileAbstractThe sanitising effects of X-rays were studied on ricotta cheese at intensities of 0.5, 2 and 3 kGy, using products manufactured artisanally and industrially. Microbiological, sensory and pH evaluations were performed during refrigerated storage. The...
Sun, 08/11/2019 - 01:08
Publication date: Available online 10 August 2019Source: Author(s): Emilio Francesco Ricciardi, Valentina Lacivita, Amalia Conte, Eugenio Chiaravalle, A. Vittorio Zambrini, Matteo A. Del NobileAbstractThe sanitising effects of X-rays were studied on ricotta cheese at intensities of 0.5, 2 and 3 kGy, using products manufactured artisanally and industrially. Microbiological, sensory and pH...
Sat, 07/13/2019 - 01:05
Publication date: Available online 11 July 2019Source: Author(s): Olga S. Papadopoulou, Anthoula A. Argyri, Evangelos Varzakis, Marianthi Sidira, Yiannis Kourkoutas, Alex Galanis, Chrysoula Tassou, Nikos G. ChorianopoulosAbstractUHT bovine milk (low-fat) was inoculated with a starter culture and one adjunct strain, Lactobacillus plantarum 2035 or Lb. plantarum T571, with probiotic potential, and...
Sat, 07/13/2019 - 01:05
Publication date: Available online 11 July 2019Source: Author(s): Yoshiaki Ohkubo, Kazuhiro Komori, Kenji Uchida, Hidemasa Motoshima, Naoya KatanoAbstractBacillus cereus is a spore-forming bacterium that adversely affects the quality of high-temperature short-time (HTST) pasteurised milk. Using a membrane filtration method, we investigated B. cereus spore levels in raw milk from dairy plants in...
Thu, 06/13/2019 - 01:17
Publication date: Available online 11 June 2019Source: Author(s): Virginia M. Guitián, Carolina Ibarguren, Cecilia M. Soria, Paula Hovanyecz, Claudia Banchio, Carina M. AudisioAbstractBacteriocins synthesised by lactic acid bacteria are natural alternatives to control Listeria monocytogenes, a foodborne pathogen. Additionally, antimicrobial biopolymer coatings have significant benefits in food...
Fri, 06/07/2019 - 01:14
Publication date: Available online 4 June 2019Source: Author(s): Francesco Martelli, Claudia Giacomozzi, Roberto Dragone, Carlo Boselli, Simonetta Amatiste, Giovanni Brajon, Gerardo Grasso, Alberto Mantovani, Chiara FrazzoliAbstractThe dairy industry’s silos represent a critical point in the safety and quality control system. However, limited scientific evidence is available on measurement...
Wed, 05/01/2019 - 01:12
Publication date: Available online 30 April 2019Source: Author(s): Katarzyna Sznajder-Katarzyńska, Magdalena Surma, Wiesław Wiczkowski, Ewa CieślikAbstractCross-sectional studies concerning the contamination of milk and milk products by perfluoroalkyl substances (PFASs) are presented and the extent of contamination that may occur in food samples, collected in Poland in 2016 is evaluated; not only...
Mon, 03/18/2019 - 01:14
Publication date: Available online 16 March 2019Source: Author(s): Maria Cecília E. Ribeiro, Meg da Silva Fernandes, Arnaldo Yoshiteru Kuaye, Mirna L. GiganteAbstractThe effectiveness of nine different sanitation procedures for the removal and control of adhered Bacillus cereus spores isolated from the dairy industry was evaluated. Four sets of experiments were produced by varying the...
Mon, 03/18/2019 - 01:14
Publication date: Available online 16 March 2019Source: Author(s): Heba A. Ahmed, Asmaa B.M.B. Tahoun, Rasha M.M. Abou Elez, Marwa I. Abd El-Hamid, Samah S. Abd EllatifAbstractYersinia enterocolitica was isolated from raw milk and dairy products from 10% of examined samples. The highest isolation rate was 22%, from raw milk, followed by 12%, 4% and 2% from fermented milk (Rayeb), pasteurised milk...
Thu, 01/03/2019 - 01:07
Publication date: Available online 2 January 2019Source: Author(s): Yoshiaki Ohkubo, Kenji Uchida, Hidemasa Motoshima, Naoya KatanoAbstractUnlike common ultra-high-temperature (UHT) milk, so-called “UHT milk” in Japan is typically pasteurised at 120 to 130 °C for 2 s and distributed at 10 °C or less, and there is a potential risk of Bacillus cereus. To estimate the microbiological safety of UHT...
Mon, 12/31/2018 - 01:12
Publication date: Available online 29 December 2018Source: Author(s): Dengchao Zou, Ling Jin, Bin Wu, Liwen Hu, Xingguang Chen, Ganhui Huang, Jinsheng ZhangAbstractControlling foodborne pathogens is important to ensure food safety and prevent foodborne diseases. In this study, a Fe3O4 nanoparticle cluster (Fe3O4 NPC) biosensor based on nuclear magnetic resonance was developed for Salmonella...
Mon, 07/30/2018 - 01:13
Publication date: Available online 29 July 2018Source: Author(s): Louise Haubert, Claudio Eduardo dos Santos Cruxen, Ângela Maria Fiorentini, Wladimir Padilha da SilvaAbstractIn the food chain, foods with high moisture, such as some cheeses, are the main route of antimicrobial resistance dissemination between different bacteria. Listeria monocytogenes is an important agent of foodborne diseases...
Tue, 05/29/2018 - 07:01
Publication date: October 2018 Source:, Volume 85 Author(s): Rania M. Kamal, Mohamed E. Alnakip, Salah F. Abd El Aal, Mohamed A. Bayoumi Despite there being many food preservation techniques, foodborne illnesses are still a growing problem. Developing alternative natural methods to control foodborne pathogens is still necessary. The antimicrobial activity of Lactobacillus rhamnosus...
Sat, 04/14/2018 - 16:02
Publication date: Available online 13 April 2018 Source: Author(s): S. Bonardi, A.S. Le Guern, C. Savin, G. Pupillo, L. Bolzoni, M. Cavalca, S. Pongolini In 2016 and 2017, 509 raw milk samples were collected from bulk milk tanks in 315 dairy farms in Parma province, Italy. Yersinia pseudotuberculosis was never detected. Yersinia enterocolitica was isolated from 17 (3.1%) bulk...
Fri, 04/13/2018 - 15:58
Publication date: Available online 13 April 2018 Source: Author(s): Edward M. Fox, Yujun Jiang, Kari S. Gobius Dairy foods are produced and enjoyed the world over as part of a healthy diet. As with other foods, however, contamination with bacterial pathogens can present a risk to public health, resulting in sporadic illness or outbreaks of disease. Many of the bacterial pathogens...
Sun, 02/18/2018 - 11:22
Publication date: Available online 17 February 2018 Source: Author(s): Yang Liu, Wupeng Ge, Jing Zhang, Xiaopeng Li, Xiaoyong Wu, Tianlai Li, Xingji Zhang, Xining Wang Out of 970 samples collected from three factories producing goat milk powder infant formula with different productivities from July to October 2016, Bacillus cereus sensu lato was detected in 350 samples (36.1...
Sat, 02/17/2018 - 11:20
Publication date: Available online 16 February 2018 Source: Author(s): Mohammad M. Obaidat, Amira A. Roess, Amjad A. Mahasneh, Rana A. Al-Hakimi Bulk tank milk was collected from 44 cow, 47 sheep and 26 goat farms to determine antibiotic resistance, enterotoxin gene profiles, and Staphyococcus aureus prevalence in Jordan. S. aureus (n = 169) was detected in 69.2% of farms; 65.9% cow,...
Thu, 02/01/2018 - 15:20
Publication date: Available online 31 January 2018 Source: Author(s): Ya Lu Yan, Michael G. Gänzle Chitosan-oligosaccharides (COS) are suitable acceptors for β-galactosidase, and galactosylated-COS prevent adhesion of enterotoxigenic Escherichia coli (ETEC) K88 to porcine erythrocytes. The structure and functional relationship of oligosaccharide binding to ETEC K88 fimbriae was...
Tue, 06/20/2017 - 00:33
Publication date: Available online 17 June 2017 Source: Author(s): Desmond T. Mugadza, Elna M. Buys Characterisation of 49 Bacillus cereus strains obtained from extended shelf life (ESL) milk and filler nozzles was done using (GTG)5 rep PCR fingerprinting, determining the presence of the virulence genes cytK, nheA, cer and hblA, and discrimination of psychrotrophic and mesophilic strains...
Sun, 05/07/2017 - 08:50
Publication date: Available online 6 May 2017 Source: Author(s): Rosalind E. Robertson, Olivier Cerf, Robin J. Condron, John A. Donaghy, Claus Heggum, Kieran Jordan There is no question that Mycobacterium avium subspecies paratuberculosis (MAP) causes Johne’s disease, a slow-advancing, chronic and fatal disease in cattle and other ruminants. However, in relation to human disease,...
Thu, 05/04/2017 - 02:25
Publication date: Available online 4 May 2017 Source: Author(s): Maria Aspri, Des Field, Paul D. Cotter, Paul Ross, Colin Hill, Photis Papademas A total of 79 bacterial strains, previously isolated from donkey milk, were screened for their antimicrobial activity against several spoilage and foodborne pathogenic bacteria. Amongst them, 3 strains belonging to Enterococcus faecium...
Tue, 04/11/2017 - 12:17
Publication date: Available online 10 April 2017 Source: Author(s): Meg da Silva Fernandes, Ana Carolina Coelho Alvares, João Gabriel Martins Manoel, Luciana Maria Ramires Esper, Dirce Yorika Kabuki, Arnaldo Yoshiteru Kuaye The formation of multi-species biofilms by Enterococcus faecalis, Enterococcus faecium, and Bacillus cereus and the effectiveness of sanitation procedures in...
Sun, 02/05/2017 - 02:46
Publication date: Available online 4 February 2017 Source: Author(s): Meike Samtlebe, Natalia Wagner, Horst Neve, Knut J. Heller, Jörg Hinrichs, Zeynep Atamer For dairy bacteriophages, the impact of phage morphology and whey components on phage retention efficiencies in filtration processes is not known. Therefore, the influence of (i) five differently shaped Lactococcus lactis...
Tue, 12/27/2016 - 23:57
Publication date: Available online 27 December 2016 Source: Author(s): Julie A. Cakebread, Megan Callaghan, Marita Broadhurst, Paul Harris, Thomas T. Wheeler The burden of diarrhoeal disease and the progressive increase in antibiotic resistance to enteric pathogens is a critical area of concern that necessitates exploration of alternative therapeutic approaches. Free secretory...
Mon, 12/05/2016 - 21:08
Publication date: Available online 5 December 2016 Source: Author(s): Maria Cecília E. Ribeiro, Meg da Silva Fernandes, Arnaldo Yoshiteru Kuaye, Rafael Jimenez-Flores, Mirna L. Gigante The adhesion of Bacillus cereus on stainless steel, with and without prior conditioning of the surface (water, skimmed milk, and whole milk) was evaluated. Inocula consisting of a pool of spores of...
Fri, 11/25/2016 - 10:18
Publication date: Available online 25 November 2016 Source: Author(s): Victor Ntuli, Patrick M.K. Njage, Elna M. Buys We investigated for virulence genes (stx1, stx2 and hlyA), serotypes and extended-spectrum β-lactamases (ESBLs) producing capacity in O157 and non-O157 Escherichia coli isolated from producer-distributor bulk milk (PDBM). Fifteen different E. coli O-serogroups were...
Sat, 11/12/2016 - 12:09
Publication date: Available online 12 November 2016 Source: Author(s): Dorota Martysiak-Żurowska, Małgorzata Puta, Joanna Kotarska, Katarzyna Cybula, Edyta Malinowska-Pańczyk, Ilona Kołodziejska The effect of UV-C irradiation of human milk on lipid oxidation, content of antioxidants (vitamin C and catalase, CAT) and bactericidal compounds (lysozyme), as well as the total...
Thu, 10/27/2016 - 17:52
Publication date: Available online 21 October 2016 Source: Author(s): Lisbeth Mehli, Sunniva Hoel, Gunn Merethe Bjørge Thomassen, Anita Nordeng Jakobsen, Hanne Karlsen In this study, coagulase positive staphylococci were detected in 45% of the 69 bovine milk, whey and cheese samples taken from five farm dairies, and all raw milk samples were contaminated. Genetic diversity,...
Thu, 10/27/2016 - 17:52
Publication date: December 2016 Source:, Volume 63 Author(s): Nicholas Nduti, Amy McMillan, Shannon Seney, Mark Sumarah, Patrisio Njeru, Mercy Mwaniki, G. Reid Aflatoxin exposure remains a health problem in developing countries. The mean concentration of aflatoxin B1 in maize meal samples from eastern Kenya of 17.4 ppb verified that the food was contaminated. A probiotic yoghurt...
Thu, 10/27/2016 - 17:52
Publication date: December 2016 Source:, Volume 63 Author(s): Asmaa B.M.B. Tahoun, Heba A. Ahmed, Rasha M.M. Abou Elez, Attia A. El-Gedawy, Ibrahim Elsohaby, Abeer E. Abd El-Ghafar Two Aeromonas species, Aeromonas hydrophila and Aeromonas sobria, were isolated from raw milk (8% and 5.3% of samples tested, respectively), yoghurt (12% and 8% of samples tested, respectively) and...
Thu, 10/27/2016 - 17:52
Publication date: December 2016 Source:, Volume 63 Author(s): Susana C. Ribeiro, Paula M. O'Connor, R. Paul Ross, Catherine Stanton, Célia C.G. Silva A bacteriocin produced by a strain of Lactococcus lactis (L3A21M1), isolated from an Azorean cheese, was purified, characterised and identified. This bacteriocin, of molecular mass 2900.23 Da, similar to that of lacticin 481, was heat...