News Update on Dairy Product Research: Nov – 2019

Increased Dairy Product or Calcium Intake: Is Body Weight or Composition Affected in Humans?

To assess the potential impact of exaggerated intakes of dairy farm merchandise or metallic element on weight or composition, a phone system search was conducted to spot randomised trials of supplementation with metallic element or dairy farm merchandise. 9 studies of food product supplementation were located: In seven, no vital variations within the amendment in weight or composition were detected between treatment and management teams. However, 2 studies conducted in older adults ascertained considerably bigger weight gain within the food product teams. The interpretation of those findings is sophisticated by the shortcoming to accurately verify the extent of dietary compensation for the increment in energy intake provided by the other dairy farm merchandise. this can be not a problem within the interpretation of studies of metallic element supplementation, of that seventeen were known. [1]

Correlation between Milk and Dairy Product Consumption and Multiple Sclerosis Prevalence: A Worldwide Study

Multiple sclerosis (MS) medical specialty suggests that various factors are concerned within the clinical expression of the illness. alimental cofactors have already been thought of, however in the main in theory. we’ve got studied the connection between MS prevalence and food product consumption in twenty seven countries and twenty nine populations everywhere the planet, with Spearman”s correlation take a look at. a decent correlation between liquid cow milk and MS prevalence (ρ = zero.836) was found; this correlation was extremely important (p < zero.001). a coffee however still important correlation was obtained with cream or butter consumption (ρ = zero.619 and ρ = zero.504, respectively). No correlation was found for cheese. These results counsel that liquid cow milk may contain factor(s) – not gift within the processed milk – influencing the clinical look of MS. [2]

Effect of a γ-aminobutyric acid-enriched dairy product on the blood pressure of spontaneously hypertensive and normotensive Wistar–Kyoto rats

We investigated the blood-pressure-lowering effects of γ-aminobutyric acid (GABA) and a GABA-enriched soured milk product (FMG) by low-dose oral administration to impromptu hypertensive (SHR/Izm) and normotensive Wistar–Kyoto (WKY/Izm) rats. FMG was a non-fat soured milk product created by carboxylic acid bacterium, and therefore the neurotransmitter contained in FMG was made up of the supermolecule of the milk throughout fermentation. one oral dose of neurotransmitter or FMG (5 ml/kg; 0•5 mg GABA/kg) considerably (P>0•05) belittled the force per unit area of SHR/Izm from four to eight h once administration, however failed to increase that of WKY/Izm rats. The hypotensive activity of neurotransmitter was dose-dependent from 0•05 to 5•00 mg/kg in SHR/Izm. throughout the chronic administration of experimental diets to SHR/Izm, a considerably slower increase in force per unit area with relevancy the management cluster was ascertained at one or two weeks once the beginning of feeding with the neurotransmitter or FMG diet severally (P>0•05) and this distinction was maintained throughout the amount of feeding. The time profile of blood-pressure amendment because of administration of FMG was just like that of neurotransmitter. [3]

Hypervirulent Listeria monocytogenes clones’ adaption to mammalian gut accounts for their association with dairy products

Listeria monocytogenes (Lm) may be a major human and animal foodborne infectious agent. Here we have a tendency to show that hypervirulent lumen clones, notably CC1, area unit powerfully related to dairy farm merchandise, whereas hypovirulent clones, CC9 and CC121, area unit related to meat merchandise. Clone adaptation to distinct ecological niches and/or totally different food merchandise contamination routes might account for this uneven distribution. Indeed, hypervirulent clones colonize higher the viscus lumen and invade a lot of viscus tissues than hypovirulent ones, reflective their adaption to host setting. [4]

Isolation and Characterization of Bacteriocinogenic Enterococcal and Lactococcal Strains from South of Morocco Dairy Product

Aim: to analyze the incidence of bacteriocinogenic carboxylic acid microorganism (BAL) in several animal’s milk of the south of Morocco.

Place and period of Study: Laboratory of microbic biotechnologies and plant Protection, school of Sciences, and Bioprocess and setting laboratory (LASIME), EST-Agadir, Ibnou Zohr University, Agadir, Morocco, between Jan 2014 and January 2016.

Methodology: a complete of 2000 completely different colonies, isolated from forty two samples of camel, ewe’s, goat and cow ad lib soured milk collected from some southern regions of Morocco, were tested for antimicrobial activity. 3 indicator strains were used; eubacterium innocua, Bacillus and Enterococcus hirae. the chosen strains are phenotypically and biochemically known, particularly by API twenty Strep galleries. additionally, the hygienical and technological aspects of those strains are studied. [5]

Reference

[1] Barr, S.I., 2003. Increased dairy product or calcium intake: is body weight or composition affected in humans?. The Journal of nutrition, 133(1), (Web Link)

[2] Malosse, D., Perron, H., Sasco, A. and Seigneurin, J.M., 1992. Correlation between milk and dairy product consumption and multiple sclerosis prevalence: a worldwide study. Neuroepidemiology, 11(4-6), (Web Link)

[3] Hayakawa, K., Kimura, M., Kasaha, K., Matsumoto, K., Sansawa, H. and Yamori, Y., 2004. Effect of a γ-aminobutyric acid-enriched dairy product on the blood pressure of spontaneously hypertensive and normotensive Wistar–Kyoto rats. British Journal of Nutrition, 92(3), (Web Link)

[4] Hypervirulent Listeria monocytogenes clones’ adaption to mammalian gut accounts for their association with dairy products
Mylène M. Maury, Hélène Bracq-Dieye, Lei Huang, Guillaume Vales, Morgane Lavina, Pierre Thouvenot, Olivier Disson, Alexandre Leclercq, Sylvain Brisse & Marc Lecuit
Nature Communications volume 10, Article number: 2488 (2019) (Web Link)

[5] Elmoslih, A., Zanzan, M., Aissa, R., Hamadi, F., Ait Baddi, G., Ait Ben Aoumar, A. and Achemchem, F. (2017) “Isolation and Characterization of Bacteriocinogenic Enterococcal and Lactococcal Strains from South of Morocco Dairy Product”, Biotechnology Journal International, 18(4), (Web Link)

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