The complex microbiota of raw milk

Quigley, Lisa; O'Sullivan, Órla; Stanton, Catherine; Beresford, Tom; Ross, R. Paul; Fitzgerald, Gerald F.; Cotter, Paul D.

doi:10.1111/1574-6976.12030

Cited by 678 publications

(668 citation statements)

References 304 publications

(413 reference statements)

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“…Milk microbiota has also been described in rhesus monkey (26) and in other mammals such as the dairy cow (27) as well as in human breast milk samples (28)(29)(30)(31)(32)(33)(34). Our recent work using pyrosequencing demonstrated a large microbial biodiversity present in colostrum samples, with clear but mild temporal variations during the first 6 mo of breastfeeding (28).…”

Section: Breast Milk As the Link Between Mother And Infantmentioning

confidence: 72%

Gut microbiota: a source of novel tools to reduce the risk of human disease?

et al. 2014

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Section: Breast Milk As the Link Between Mother And Infantmentioning

confidence: 72%

Gut microbiota: a source of novel tools to reduce the risk of human disease?

et al. 2014

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“…Raw milk harbours a complex microbial community including bacteria of technological relevance such as the lactic acid bacteria (LAB), which can contribute to subsequent desirable fermentative reactions (Quigley et al 2013). Differently, a prevalent presence of spoilage bacteria can have considerable negative effects on the quality of milk and dairy products .…”

Section: Introductionmentioning

confidence: 99%

Multi-dimensional assessment and scoring system for dairy farms

Zucali

Battelli

Battini

et al. 2016

Italian Journal of Animal Science

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The aim of the study is to develop a scoring system for dairy farms in order to give specific information about the product and production process of milk. The scoring system, based on a multi-dimensional approach, was developed on the basis of data collected in 29 Italian dairy farms and included different aspects. For the evaluation of animal welfare, a selection of indicators set up in the European Project V R assessment protocol for cattle 2009 was used. Environmental sustainability of milk production was assessed by a cradle-to-farm-gate Life Cycle Assessment. Laboratory analyses were carried out on bulk tank milk to evaluate microbiological, nutritional and nutraceutical quality. Nineteen variables were selected and retained to define six quality aspects: animal welfare, environmental and economic sustainability of farms, microbiological, nutritional and nutraceutical quality of milk. Each farm was visited twice; each visit received, for each variable, a score between 1 and 3 based on the frequency distribution of that variable in the farm sample. The relation among farm characteristics and quality aspects showed the importance to maximise dairy efficiency to improve environmental and economic sustainability of the farms and the inclusion of hay in dairy cows' ration to enhance the nutraceutical and nutritional quality of milk. The proposed multi-dimensional scoring system is a practical tool: for the farmer, to support decisions for improving the quality of the product and the productive process; for the dairy company, as a value-added opportunity; for the consumer, who receives detailed information about nutritional characteristics and production system of dairy products. ARTICLE HISTORY

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“…in the marketed raw milk. Quigley et al [3] reported that milkborne pathogens like Brucella spp. are a particular cause for concern as they are able to survive and multiply at refrigeration temperatures and may cause severe diseases.…”

Section: Districtsmentioning

confidence: 99%

“…Microorganisms enter milk from a variety of sources can be beneficial or harmful, for example Lactococcus, Lactobacillus, Streptococcus, Propionibacterium and fungal populations facilitate dairy fermentations, lactobacilli and bifidobacteria promote health while Pseudomonas, Clostridium, Bacillus and other spore-forming or thermoduric microorganisms cause spoilage and Listeria monocytogenes, Salmonella, Shiga toxin producing Escherichia coli (STEC), Campylobacter and mycotoxin-producing fungi cause disease [3]. Despite the outstanding nutritional quality and health benefits of milk, it serves also as an excellent vehicle for transmission of milkborne pathogens which may cause serious health risk to consumers.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Microbiological Quality of Raw Milk from Farmers and Dairy Producers in Six Districts of Djibouti

Mohamed¹,

Ae²,

Aa³

et al. 2017

J Food Microbiol Saf Hyg

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Objectives: The present study was carried out to evaluate the microbial quality of raw milk taken at different sampling points from farmers in Ali Sabieh, Arta, Dikhil, Djibouti, Obock and Tadjourah districts of Djibouti. Methods:Two hundred samples of milk extracted from goats, cows and camels were collected and analyzed for the presence and enumeration of microorganisms using standard methods. Total bacterial counts exceeded the national standard in 56% of collected samples and Tadjourah district had higher milk samples (82%) with unacceptable total bacterial count.Results: Key data demonstrated the presence of food-borne microorganisms. The mean value of aerobic mesophilic bacteria (6.78 log cfu mL -1 ), coliform counts (3.91 cfu mL -1 ) and E. coli count (2.58 cfu mL -1 ) was higher than maximum recommended value. The count of yeast and moulds (5.54 log cfu mL -1 ) was also very high. Salmonella spp. (0.10 log cfu mL -1 ) was only detected in the samples from Ali Sabieh district whereas Staphylococcus aureus and spore of Clostridium spp. were below the detection level in all samples. Count of Brucella spp. and Mycobacteria were 0.56 log cfu mL -1 and 0.86 log cfu mL -1 respectively suggesting the existence of mastitic animals. Pearson correlation matrix of microorganism's distribution in raw milk showed highest positive correlation between Yeast and moulds and Streptococci at r=0.929. Analysis in principal components exhibited the variability of microbial groups with 80.797% cumulative values of the variance and Eigen values ranging between 1.553 and 3.622. Conclusion:The data suggested that raw milk samples collected from the six districts were non suitable quality and most of bacteria identified in the milk sampled could be potential food-borne pathogens.

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The complex microbiota of raw milk

Cited by 678 publications

References 304 publications

Gut microbiota: a source of novel tools to reduce the risk of human disease?

Gut microbiota: a source of novel tools to reduce the risk of human disease?

Multi-dimensional assessment and scoring system for dairy farms

Evaluation of Microbiological Quality of Raw Milk from Farmers and Dairy Producers in Six Districts of Djibouti

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