properties of thermophilic lactic acid bacteria
Analysis and practical implementation of a model for combined growth and metabolite production of lactic acid bacteria
... total amount of lactic acid in the medium and the buffering capacity of the medium are known The amount of undissociated lactic acid is then further related to the total amount of lactic acid LaHtot ... Instruments) After filtration of the sample to remove the cells (Sarstedt, pore size 0.2 mm) and derivatisation of the lactic acid present in the filtrate with methanol, lactic acid was measured through ... Trivector) Analysis and adaptation of the model of Nicolaı ¨ et al (1993) Nicolaı et al (1993) have constructed a dynamic ¨ model for the surface growth of lactic acid bacteria on vacuum-packed meats...
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Probiotic potential of lactic acid bacteria isolated from chicken gastrointestinal digestive tract pot
... Effect of bile acid on the cell membrane functionality of lactic acid bacteria for oral administration Res Microbiol 157:720–725 doi: 10.1016/j.resmic.2006.04.002 Thongsom M (2004) Lactic acid bacteria ... Poult Sci 5:593–597 Ammor S, Tauveron G, Dofour E, Chevallier I (2006) Antibacterial activity of lactic acid bacteria against spoilage and pathogenic bacteria isolated from the same meat small-scale ... are evaluated as beneficial bacteria by their product of acids (lactic acid) , bacteriocin or bacteriocin-like substances Putrefactive bacteria are regarded as harmful bacteria in that they decompose...
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Báo cáo khoa học: "Isolation of cholesterol-lowering lactic acid bacteria from human intestine for probiotic use" ppsx
... Isolation of cholesterol-lowering lactic acid bacteria 393 Table Number of acid- and bile-tolerant lactic acid bacteria isolated from the human intestine for probiotic use Acida Bileb BSHc Streptococcus ... Woestyne M, Christiaens H, Verstraete W Significance of bile-salt hydrolytic Isolation of cholesterol-lowering lactic acid bacteria activities of lactobacilli J Appl Bacteriol 1995, 79, 292-301 ... agar plate Bacteria were preprocessed with reagents to extract fatty acid from the bacterial cell-wall and identified with microbial identification system (MIDI, Inc., USA) Isolation of bacteria: ...
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Báo cáo y học: "Anti-inflammatory potential of a malleable matrix composed of fermented whey proteins and lactic acid bacteria in an atopic dermatitis model" pot
... in a context of stimulation of innate immunity but detrimental in the context of inflammatory disease This present study reveals the interesting properties of MPM in the reduction of inflammation ... Holzapfel WH: Lactic acid bacteria of foods and their current taxonomy International Journal of Food Microbiology 1997, 36:1-29 Ouwehand AC, Salminen S, Isolauri E: Probiotics: an overview of beneficial ... diminution of PMN extravasation in the ear of mice The diminution of neutrophils extravasation as suggested by blood PMN counts was confirmed by the reduction of neutrophil content in ear of 62.4%...
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The roles of lactic acid bacteria in host inflammatory responses
... a variety of stimuli, including lactic acid bacteria (LAB) LAB are a group of related bacteria that produce lactic acid as a result of carbohydrate fermentation Lactobacilli, bifidobacteria, ... THE ROLES OF LACTIC ACID BACTERIA IN HOST INFLAMMATORY RESPONSES WANG SHUGUI (B.Sc., Sun Yat-Sen University) A THESIS SUBMITTED FOR THE DEGREE OF PHILOSOPHY OF DOCTORATE DEPARTMENT OF MICROBIOLOGY ... bacteria that produce lactic acid as a result of carbohydrate fermentation The production of lactic acid results a very low pH which is low enough to inhibit the growth of most other microorganisms...
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fermentation of mango juice by lactic acid bacteria
... value of fruit juice fermented by lactic acid bacteria (LAB) Four isolates of lactic acid bacteria from mango were obtained The results of research showed that all 10 strains of lactic acid bacteria ... hours Count density of lactic acid bacteria: plate counting method Monitor the indicators: Brix, pH, level of lactic acid after fermentation and the density of lactic acid bacteria Analyze the ... survive and grow at this pH The cause of the decrease in pH was due to the development of lactic acid bacteria that produced lactic acid Content of lactic acid produced from isolates from Ybio...
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fermentation of carrot juice by lactic acid bacteria
... select lactic acid bacteria and to study the favorable conditions of lactic acid fermented carrot juice with biological values The content of this study includes: - Isolation of lactic acid bacteria ... Isolation of lactic acid bacteria 3.2 Study on low pH tolerance of isolates 3.3 Study on lactic acid fermentation ability of isolates in carrot juice 10 3.4 Identification of the ... tolerance of isolates - Study on lactic acid fermentation ability of isolates in carrot juice - Identification of the selected lactic acid bacteria by molecular technique - Study on the effect of dilution...
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fermentation of dragon fruit juice by lactic acid bacteria
... organic acids,… Dragon fruit juice is a suitable medium for lactic acid bacteria to produce new probiotic products Therefore, the study “Fermentation of dragon fruit juice by lactic acid bacteria ... hours of fermentation, pH decreased from 4.52 to about 3.23 – 4.31 At this pH, lactic acid bacteria could remain The pH decreased because due to the production of lactic acid during development of ... Characteristics of isolated bacteria strains: - Bacteria strains isolated from Antibio and Probio powder were rod-shaped bacteria They had the same characteristics of Lactobacillus acidophilus, the bacteria...
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fermentation of pineapple juice by lactic acid bacteria
... for lactic acid bacteria to produce new probiotic products Therefore, the research “Fermentation of pineapple juice by lactic acid bacteria was carried out Objectives To isolate lactic acid ... into lactic acid inhibited the bacterial growth and development Besides, lactic acid itself could inhibit the development of bacteria (Nguyen Thi Hien, 2006) In contrast, the treatment of 15 9% of ... characteristics, four isolated bacteria were lactic acid bacteria with following characteristics such as: gram-positive bacteria, catalase-negative, reducing lactic acid to dissolution of CaCO3, cocci or...
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Báo cáo y học: "Evaluation of long-term antinociceptive properties of stabilized hyaluronic acid preparation (NASHA) in an animal model of repetitive joint pain" doc
... of hyaluronic acid effects The mechanisms underlying the beneficial effects of HA in OA pain/degenerative pain are not completely understood to date As putative modes of action, the viscous properties ... GF20 and Page of 11 sodium hyaluronate, for duration and effect sizes of their antinociceptive properties NASHA is characterized by a gel structure which is stabilised using about 1% of cross-linking ... formulation for the treatment of OA Here we report on the magnitude and long-term duration of antinociceptive effects of NASHA and other HA preparations in the bradykinin/PGE model of repetitive joint...
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Tài liệu tiếng Anh ứng dụng vi khuẩn lactic trong sản xuất GABA
... methods for rapid detection of GABA-producing LAB Table The properties of lactic acid bacterial glutamate decarboxylases Strains Molecular weight of subunit (kDa) Number of subunit Optimal pH Optimal ... Synthesis of c-aminobutyric acid by lactic acid bacteria isolated from a variety of Italian cheeses Appl Environ Microbiol 73:7283–7290 Skeie S, Lindberg C, Narvhus J (2001) Development of amino acids ... gamma-aminobutyric acid: application to the screening of gamma-aminobutyric acid- producing lactic acid bacteria Anal Chim Acta 540:293–297 Tsushida T, Murai T (1987) Conversion of glutamic -acid to gammaaminobutyric-acid...
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Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
... Poly (lactic acid) fabric Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting ... Ingeo Poly (lactic acid) (PLA) fabric Conclusion The effect of time of heatsetting on tensile properties of knitted Ingeo™ Poly (lactic acid) (PLA) was determined using the KES-FB system of fabric ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...
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Acetic Acid Bacteria - screening of LAB strains
... of One hundred and thirteen lactic acid bacteria isolates were obtained from seven fermented 742 World Appl Sci J., (5): 741-747, 2008 Table 1: Species and frequency of occurrence of lactic acid ... containing 90 ml of mESM broth and incubated at 30°C for 30h Samples were taken for analysis at the end of the fermentation period Isolation of lactic acid bacteria: Serial dilutions of homogenized ... on the occurrence of lactic acid bacteria spectrum, L plantarum constituted the highest number of LAB isolated from fermented plant materials The involvement of various types of LAB in fermented...
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Tài liệu Báo cáo khoa học: Understanding the binding properties of an unusual metal-binding protein ) a study of bacterial frataxin pdf
... concomitant appearance of other signals in other parts of the spectrum This result could be a consequence of the paramagnetic properties of Fe(II), or it might arise from the presence of an intermediate ... Superimpositions of a reference [1H,15N] HSQC spectrum of CyaY (blue) with a spectrum (red) of a : mixture of CyaY ⁄ Gd3+ (A), a : mixture of CyaY ⁄ Lu3+ (B), and a : mixture of CyaY ⁄ Ca2+ (C) ... Pastore et al Metal-binding properties of CyaY A B N C N C Fig Perturbations of the NMR spectra caused by different ions (A) Summary of the residues affected by the addition of different ions Residues...
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Báo cáo khoa học: Crystal structure and enzymatic properties of a bacterial family 19 chitinase reveal differences from plant enzymes pdf
... hypothesis is not confirmed by the present analysis of enzymatic properties of ChiG, or by our analysis of the ChiG and ChiC structures Despite the deletion of the B-loop, the two putative catalytic residues ... the exploitation of chitinous substrates as a source of nutrition Production of multiple enzymes with varying properties (endo-action or exo-action, processive or not, presence of additional substrate-binding ... cell pellet was resuspended in 15 mL of ice-cold spheroplast buffer (10 mL of m Tris ⁄ HCl, pH 8.0, 17.1 g of sucrose, 100 lL of 0.5 m EDTA, pH 8.0, and 200 lL of phenyl- FEBS Journal 273 (2006)...
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Báo cáo Y học: Assignment of molecular properties of a superactive coagulation factor VIIa variant to individual amino acid changes potx
... rate of hydrolysis of peptides of various lengths (from ể FEBS 2002 5954 E Persson and O H Olsen (Eur J Biochem 269) P4-P1Â to P4-P7Â of FX) by V158D/E296V/M298Q-FVIIa as compared with that of ... inherent activity of the FX substrate and of the FVIIa/sTF mixture were subtracted and the net amount of factor Xa generated was derived from a standard curve The kinetic parameters of FX activation ... different from that of wild-type FVIIa (not shown) The amidolytic activity of free FVIIa has been shown to be at least about 10 times higher in the presence of mM Ca2+ than in the absence of the metal...
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Báo cáo Y học: Molecular cloning, bacterial expression and properties of Rab31 and Rab32 docx
... lg of platelet protein and 0.5 lg of GST and GST±Rab proteins; (B) an [a-32P]GTP overlay [17] of a nitrocellulose blot of a gel containing 40 lg of platelet protein, 0.5 lg of GST and 0.5 lg of ... (Fig 4) To determine the amounts of these Rab proteins in platelets, immunoblots of 10±20 lg of platelet protein were compared with those of standard amounts of the recombinant Rab proteins (0.5±20 ... form of Rab32 (see Discussion) Fig Puri®cation and properties of wild-type and mutant Rab31 and Rab32 expressed as GST±fusion proteins Samples of platelet particulate fraction protein and of puri®ed...
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Báo cáo Y học: Spectroscopic characterization and ligand-binding properties of chlorite dismutase from the chlorate respiring bacterial strain GR-1 ppt
... The EPR spectra and the redox properties of chlorite dismutase are, surprisingly, more similar to those of the globins than of the heme enzymes The midpoint potential of chlorite dismutase seems ... mV) On the mechanism of chlorite dismutase Several considerations are important in the determination of the reaction mechanism of chlorite dismutase First of all, the valence of Cl in ClO2– is reduced ... Perhaps, as in guanylate cyclase, cleavage of the Fe–His bond is part of the catalytic mechanism of chlorite dismutase Fig Schematic view of the formation of the different heme iron species described...
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Báo cáo khoa học: Properties of two multifunctional plant fatty acid acetylenase/desaturase enzymes pptx
... added fatty acids into their lipids In absence of exogenous fatty acids, the yeast expressing the C alpina acetylenase gene converted up to 0.65% of their fatty acids into 18:2 in a ratio of D12(E) ... 9(E),12(Z)-octadecadienoic acid and 9(E),12(E)-octadecadienoic acid were purchased from Larodan Fine Chemicals, Malmo, Sweden [12(S)-2H]Oleic ¨ acid was prepared from 12(R)-hydroxy-9(Z)-octadecenoic acid (ricinoleic acid) ... [12(S)-2H]oleic acid and (B) [erythro-12,13–2H2]oleic acid Ó FEBS 2004 Stereochemistry of acetylenase/desaturase enzymes (Eur J Biochem 271) 2993 addition of deuterium [17], i.e deuteration of a Z double...
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Báo cáo khoa học: Conformational properties of bacterial DnaK and yeast mitochondrial Hsp70 Role of the divergent C-terminal a-helical subdomain pdf
... steady-state ATPase activities of KKCC and KCCC were comparable with that of DnaK, however, addition of the NR peptide poorly enhanced their activity (less than twofold) Bacterial co-chaperones activate ... Binding of ATP to DnaK promoted quenching of the single Trp residue of DnaK and a blue-shift of its emission maximum (Fig 4B, upper traces) In addition to these spectral changes, reduction of the ... should be noted that in the absence of nucleotide the emission maximum of mtHsp70 is downshifted by 5–6 nm with respect to that of DnaK The twofold reduction of the KSV values estimated for mtHsp70...
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- lactic acid bacteria lab in functional dairy products
- benefits advantages amp health effects of probiotics and lactic acid bacteria
- acid base properties of amino acids
- milk lactic acid bacteria solution vsd lactic acid bacteria powder fr solution and fd lactic acid bacteria powder
- aluminum content and acid properties of zeolites for catalysis
- poly l lactic acid for the treatment of hiv associated facial lipoatrophy
- antisense properties of peptide nucleic acid pna
- modeling the conformational properties of a highly flexible bacterial polysaccharide nmb
- lactic acid bacteria and plant fibers treatment in acute and chronic human disease
- thermophilic lactic acid bacteria
- lactic acid bacteria in manufacture and ripening of cheddar cheese
- nonstarter lactic acid bacteria nslab —
- technology of cheeses involving thermophilic lactic acid bacteria
- technological properties of thermophilic starters contributing to cheesemaking
- the major lactic acid bacteria in vegetable fermentation
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