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https://www.readbyqxmd.com/read/29774337/fermentation-alters-the-bioaccessible-phenolic-compounds-and-increases-the-alpha-glucosidase-inhibitory-effects-of-aronia-juice-in-a-dairy-matrix-following-in-vitro-digestion
#1
Xue Du, Angela D Myracle
The prevalence of diabetes reached 415 million worldwide in 2015. Polyphenol-rich food intake can benefit the glycemic control for individuals with diabetes. Fermentation may increase the bioavailability of polyphenols, which is generally low. Aronia (Aronia melanocarpa) is a polyphenol-rich berry that is native to North America. Proanthocyanins and anthocyanins are the major phenolic compounds in aronia. In this study, aronia kefir was made by fermenting cow's milk with added aronia juice. The changes in bioaccessible polyphenols of aronia kefir during digestion were assessed using an in vitro model...
May 18, 2018: Food & Function
https://www.readbyqxmd.com/read/29766693/food-aversions-and-dietary-preferences-in-pre-school-children-from-olsztyn
#2
Joanna Ciborska, Jan Kłobukowski, Iwona Pierzchała
Background: The nutrition of pre-school children often does not follow the recommendations, and qualitatively and quantitatively limited selection of products in the diet shapes an attitude of aversion towards new products and dishes. The risk of deficiencies in many important nutrients emerges, particularly in vitamins and mineral components, which can affect the psychophysical development of the child and have an impact on nutritional status and health disorders in adulthood. Objective: Study of dietary preferences in pre-school children and identify possible food aversions...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29667561/comparative-in-vitro-efficacy-of-kefir-produced-from-camel-goat-ewe-and-cow-milk-on-haemonchus-contortus
#3
D Alimi, M Rekik, H Akkari
One of the great challenges of veterinary parasitology is the search for alternative methods for controlling gastrointestinal parasites in small ruminants. Milk kefir is a traditional source of probiotic, with great therapeutic potential. The objective of this study was to investigate the anthelmintic effects of kefir on the abomasal nematode Haemonchus contortus from sheep. The study used camel, goat, ewe and cow milk as a starting material, to produce camel, goat, cow and ewe milk kefir. All kefirs showed a significant concentration-dependent effect on H...
April 18, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29655886/lactobacillus-hordei-dextrans-induce-saccharomyces-cerevisiae-aggregation-and-network-formation-on-hydrophilic-surfaces
#4
Di Xu, Lea Fels, Daniel Wefers, Jürgen Behr, Frank Jakob, Rudi F Vogel
Water kefir granules are supposed to mainly consist of dextrans produced by Lactobacillus (L.) hilgardii. Still, other microorganisms such as L. hordei, L. nagelii, Leuconostoc (Lc.) citreum and Saccharomyces (S.) cerevisiae are commonly isolated from water kefir granules, while their contribution to the granule formation remains unknown. We studied putative functions of these microbes in granule formation, upon development of a simplified model system containing hydrophilic object slides, which mimics the hydrophilic surface of a growing kefir granule...
April 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29642726/donkey-milk-kefir-induces-apoptosis-and-suppresses-proliferation-of-ehrlich-ascites-carcinoma-by-decreasing-inos-in-mice
#5
Obb Esener, B M Balkan, E I Armutak, A Uvez, G Yildiz, M Hafizoglu, N Yilmazer, E Gurel-Gurevin
Donkey milk and donkey milk kefir exhibit antiproliferative, antimutagenic and antibacterial effects. We investigated the effects of donkey milk and donkey milk kefir on oxidative stress, apoptosis and proliferation in Ehrlich ascites carcinoma (EAC) in mice. Thirty-four adult male Swiss albino mice were divided into four groups as follows: group 1, administered 0.5 ml water; group 2, administered 0.5 ml water + EAC cells; group 3, administered 0.5 ml donkey milk + EAC cells; group 4, administered 0.5 ml donkey milk kefir + EAC cells...
April 12, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29605766/the-benefits-of-soluble-non-bacterial-fraction-of-kefir-on-blood-pressure-and-cardiac-hypertrophy-in-hypertensive-rats-are-mediated-by-an-increase-in-baroreflex-sensitivity-and-decrease-in-angiotensin-converting-enzyme-activity
#6
Girlandia Alexandre Brasil, Mirian de Almeida Silva-Cutini, Flávia de Souza Andrade Moraes, Thiago de Melo Costa Pereira, Elisardo Corral Vasquez, Dominik Lenz, Nazaré Souza Bissoli, Denise Coutinho Endringer, Ewelyne Miranda de Lima, Vinícia Campana Biancardi, June Ferreira Maia, Tadeu Uggere de Andrade
OBJECTIVES: We aimed to evaluate whether long-term treatment with the soluble non-bacterial fraction of kefir affects mean arterial pressure (MAP) and cardiac hypertrophy through the modulation of baroreflex sensitivity, ACE activity, and the inflammatory-to-anti-inflammatory cytokine ratio in spontaneously hypertensive rats (SHRs). METHODS: SHRs were treated with the soluble non-bacterial kefir fraction (SHR-kefir) or with kefir vehicle (SHR-soluble fraction of milk)...
February 7, 2018: Nutrition
https://www.readbyqxmd.com/read/29584690/lactic-acid-bacteria-from-kefir-increase-cytotoxicity-of-natural-killer-cells-to-tumor-cells
#7
Takuya Yamane, Tatsuji Sakamoto, Takenori Nakagaki, Yoshihisa Nakano
The Japanese fermented beverage, homemade kefir, contains six lactic acid bacteria: Lactococcus. lactis subsp. Lactis , Lactococcus . lactis subsp. Cremoris , Lactococcus. Lactis subsp. Lactis biovar diacetylactis , Lactobacillus plantarum , Leuconostoc meseuteroides subsp. Cremoris and Lactobacillus casei . In this study, we found that a mixture of the six lactic acid bacteria from kefir increased the cytotoxicity of human natural killer KHYG-1 cells to human chronic myelogenous leukemia K562 cells and colorectal tumor HCT116 cells...
March 27, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29580412/structural-characterization-of-the-exopolysaccharides-from-water-kefir
#8
Lea Fels, Frank Jakob, Rudi F Vogel, Daniel Wefers
Water kefir is a beverage which is produced by initiating fermentation of a fruit extract/sucrose solution with insoluble kefir grains. Exopolysaccharides that are formed from sucrose play a major role in the kefir grain formation, but the exopolysaccharides in the kefir beverage and the detailed structural composition of the whole kefir grains have not been studied yet. Therefore, kefir grains and the corresponding kefir beverage were analyzed for exopolysaccharides by multiple chromatographic approaches and two-dimensional NMR spectroscopy...
June 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29564960/complete-genome-sequencing-of-exopolysaccharide-producing-lactobacillus-plantarum-k25-provides-genetic-evidence-for-the-probiotic-functionality-and-cold-endurance-capacity-of-the-strain
#9
Yunyun Jiang, Jian Zhang, Xiao Zhao, Wen Zhao, Zhijian Yu, Chao Chen, Zhennai Yang
Lactobacillus plantarum (L. plantarum) K25 is a probiotic strain isolated from Tibetan kefir. Previous studies showed that this exopolysaccharide (EPS)-producing strain was antimicrobial active and cold tolerant. These functional traits were evidenced by complete genome sequencing of strain K25 with a circular 3,175,846-bp chromosome and six circular plasmids, encoding 3365 CDSs, 16 rRNA genes and 70 tRNA genes. Genomic analysis of L. plantarum K25 illustrates that this strain contains the previous reported mechanisms of probiotic functionality and cold tolerance, involving plantaricins, lysozyme, bile salt hydrolase, chaperone proteins, osmoprotectant, oxidoreductase, EPSs and terpenes...
March 22, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29554948/species-classifier-choice-is-a-key-consideration-when-analysing-low-complexity-food-microbiome-data
#10
Aaron M Walsh, Fiona Crispie, Orla O'Sullivan, Laura Finnegan, Marcus J Claesson, Paul D Cotter
BACKGROUND: The use of shotgun metagenomics to analyse low-complexity microbial communities in foods has the potential to be of considerable fundamental and applied value. However, there is currently no consensus with respect to choice of species classification tool, platform, or sequencing depth. Here, we benchmarked the performances of three high-throughput short-read sequencing platforms, the Illumina MiSeq, NextSeq 500, and Ion Proton, for shotgun metagenomics of food microbiota. Briefly, we sequenced six kefir DNA samples and a mock community DNA sample, the latter constructed by evenly mixing genomic DNA from 13 food-related bacterial species...
March 20, 2018: Microbiome
https://www.readbyqxmd.com/read/29527687/mathematical-model-of-co-2-release-during-milk-fermentation-using-natural-kefir-grains
#11
Andreja Goršek, Jožef Ritonja, Darja Pečar
BACKGROUND: Milk fermentation takes place in the presence of various micro-organisms, producing a variety of dairy products. The oldest of them is kefir, which is usually produced by the fermentation of milk with kefir grains. Carbon dioxide (CO2 ), as one of the process products, also contributes to the characteristic flavor of kefir. The amount of CO2 generated during fermentation depends on bioprocessing conditions and may change, which is not desirable at the industrial level. RESULTS: In this study we developed a simplified mathematical model of CO2 release in the milk-fermentation process...
March 12, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29526223/oxygen-and-diverse-nutrients-influence-the-water-kefir-fermentation-process
#12
David Laureys, Maarten Aerts, Peter Vandamme, Luc De Vuyst
Eight water kefir fermentation series differing in the presence of oxygen, the nutrient concentration, and the nutrient source were studied during eight consecutive backslopping steps. The presence of oxygen allowed the proliferation of acetic acid bacteria, resulting in high concentrations of acetic acid, and decreased the relative abundance of Bifidobacterium aquikefiri. Low nutrient concentrations resulted in slow water kefir fermentation and high pH values, which allowed the growth of Comamonas testosteroni/thiooxydans...
August 2018: Food Microbiology
https://www.readbyqxmd.com/read/29519117/assessment-of-nutritional-behaviours-of-children-aged-7-12-attending-to-primary-schools-in-biala-podlaska-poland
#13
Anna Galczak-Kondraciuk, Paweł Stempel, Jan Czeczelewski
Background: Children and youth constitute a group that is particularly prone to the effects of improper diet. In the puberty period, numerous significant lifestyle choices are made, for instance regarding particular nutritional behaviours which may be repeated later in life and may determine the state of health. Objective: The aim of the study was to assess nutritional behaviours of children aged 7-12 attending to primary schools in Biala Podlaska county (Eastern Region of Poland)...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29508520/sugary-kefir-strain-lactobacillus-mali-aps1-ameliorated-hepatic-steatosis-by-regulation-of-sirt-1-nrf-2-and-gut-microbiota-in-rats
#14
Yung-Tsung Chen, Yu-Chun Lin, Jin-Seng Lin, Ning-Sun Yang, Ming-Ju Chen
SCOPE: Non-alcoholic fatty liver disease (NAFLD) is a common disease that is concomitant with obesity, resulting in increased mortality. To date, the efficiency of NAFLD treatment still needs to be improved. Therefore, we aimed to evaluate the effect of Lactobacillus mali APS1, which was isolated from sugary kefir, on hepatic steatosis in rats fed a high-fat diet (HFD). METHODS AND RESULTS: Sprague Dawley rats were fed a control diet, a HFD with saline, and a HFD with APS1 intervention by gavage daily for 12 weeks...
April 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29501341/exploring-the-influence-of-culture-conditions-on-kefir-s-anticancer-properties
#15
Ma'mon M Hatmal, Abeer Nuirat, Malek A Zihlif, Mutasem O Taha
Cancer is a major health problem in many parts of the world. Conventional anticancer treatments are painful, expensive, and unsafe. Therefore, demand is increasing for cancer treatments preferentially in the form of functional foods or nutritional supplements. Kefir, a traditional fermented milk dairy product, has significant antimutagenic and antitumor properties. This research addresses the hypothesis that kefir's anticancer properties are affected by fermentation conditions. Initially, kefir extracts prepared under standard conditions were screened against 7 cancer cell lines using the tetrazolium dye 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide colorimetric assay...
May 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29494487/dairy-fats-and-cardiovascular-disease-do-we-really-need-to-be-concerned
#16
REVIEW
Ronan Lordan, Alexandros Tsoupras, Bhaskar Mitra, Ioannis Zabetakis
Cardiovascular diseases (CVD) remain a major cause of death and morbidity globally and diet plays a crucial role in the disease prevention and pathology. The negative perception of dairy fats stems from the effort to reduce dietary saturated fatty acid (SFA) intake due to their association with increased cholesterol levels upon consumption and the increased risk of CVD development. Institutions that set dietary guidelines have approached dairy products with negative bias and used poor scientific data in the past...
March 1, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29477522/comparison-of-antioxidant-capacity-of-cow-and-ewe-milk-kefirs
#17
Lutfiye Yilmaz-Ersan, Tulay Ozcan, Arzu Akpinar-Bayizit, Saliha Sahin
This research aimed to evaluate the effects of using either grain or commercial starter culture on the antioxidative capacity of cow and ewe milk kefirs. The antioxidant capacity of kefir samples during fermentation and 21 d of storage was assessed by using 3 assays: 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical cation decolorization; 2,2-diphenyl-1-picrylhydrazyl (DPPH• ) radical scavenging activity assay; and Fe+3 -reducing power (ferric reducing antioxidant power assay, FRAP). Vitamin E and β-carotene contents were also quantified...
May 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29473955/growth-capacity-of-a-novel-potential-probiotic-lactobacillus-paracasei-k5-strain-incorporated-in-industrial-white-brined-cheese-as-an-adjunct-culture
#18
Antonia Terpou, Loulouda Bosnea, Maria Kanellaki, Stavros Plessas, Argyro Bekatorou, Eugenia Bezirtzoglou, Athanasios A Koutinas
In this study, a novel potential probiotic strain Lactobacillus paracasei K5, previously isolated from traditional Greek Feta cheese and kefir grains, was evaluated as an adjunct culture for industrial white brined cheese production. Targeting industrial applications, apart from free cell cultures, a novel ready-to-use freeze-dried immobilized biocatalyst was prepared. The biocatalyst composed of L. paracasei K5 cells immobilized on delignified wheat bran prebiotic carrier and was freeze-dried without cryoprotectants...
March 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29468996/culture-supernatant-produced-by-lactobacillus-kefiri-from-kefir-inhibits-the-growth-of-cronobacter-sakazakii
#19
Dong-Hyeon Kim, Dana Jeong, Kwang-Young Song, Il-Byeong Kang, Hyunsook Kim, Kun-Ho Seo
No abstract text is available yet for this article.
February 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29464517/evaluation-of-kefir-as-a-new-anodic-biocatalyst-consortium-for-microbial-fuel-cell
#20
Gustavo Silveira, José Maurício Schneedorf
Kefir, a combined consortium of bacteria and yeast encapsulated by a polymeric matrix of exopolysaccharides, was used as anodic biocatalyst in a two-chamber microbial fuel cell (MFC). Fermentation was followed during 72 h and polarization curves were obtained from linear sweep voltammetry. The effect of methylene blue as charge-transfer mediator in the kefir metabolism was evaluated. UV/Vis spectrophotometry and cyclic voltammetry were applied to evaluate the redox state of the mediator and to characterize the electrochemical activity, whereas current interruption was used for internal resistance determination...
February 21, 2018: Applied Biochemistry and Biotechnology
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