nonstarter lactic acid bacteria nslab —
Analysis and practical implementation of a model for combined growth and metabolite production of lactic acid bacteria
... and lactic acid present in a surface liquid layer with known dimensions, the adapted model describes the concentrations of cells and lactic acid in a liquid medium Microbial growth and lactic acid ... 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 ... 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 gas chromatographic analysis of the methyl...
Ngày tải lên: 05/05/2014, 08:44
Probiotic potential of lactic acid bacteria isolated from chicken gastrointestinal digestive tract pot
... bacteria Base on their roles, the intestinal bacteria may be divided into two groups: LAB and putrefactive bacteria LAB are evaluated as beneficial bacteria by their product of acids (lactic acid) , ... 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 ... (2006) Antibacterial activity of lactic acid bacteria against spoilage and pathogenic bacteria isolated from the same meat small-scale facility: Screening and characterization of the antibacterial...
Ngày tải lên: 07/07/2014, 19:20
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 ... 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: ... Assimilation of cholesterol by Lactobacillus acidophilus Appl Environ Microbiol 1985, 49, 377-381 10 Gilliland SE Health and nutrition benefits from lactic acid bacteria FEMS Microbiol Rev 1990, 7, 175-188...
Ngày tải lên: 07/08/2014, 18:20
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
... infiltration of inflammatory cells following a direct topical contact [11] In addition, some Lactic Acid Bacteria (LAB) have shown immunomodulatory and anti-inflammatory activities The genus Lactobacillus ... (B2) Niacin (B3) Pyridoxine (B6) Cobalamine (B12) Ascorbic acid (C) Folic acid 0.32 mg 1.00 mg 0.04 mg Not detected Not detected μg Bacterial count (CFU/100 g) LAB standard laboratory pelleted ... 9:1239-1255 23 24 25 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Stiles ME, Holzapfel WH: Lactic acid bacteria of foods and their current taxonomy International Journal of Food Microbiology 1997,...
Ngày tải lên: 11/08/2014, 08:21
The roles of lactic acid bacteria in host inflammatory responses
... 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, enterococi ... 2005; Bondarenko et al., 2004) Among the “good” bacteria, lactobacilli, bifidobacteria and enterococci are Gram positive They belong to lactic acid bacteria (LAB) which is an important group in ... are still unclear LAB are a group of related 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...
Ngày tải lên: 13/09/2015, 19:50
fermentation of mango juice by lactic acid bacteria
... 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 were able ... 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 ... 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 powder, Biosubtyl powder...
Ngày tải lên: 06/10/2015, 12:57
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 ... DISCUSSION 3.1 Isolation of lactic acid bacteria All pure isolates were classically defined by observing macro and micro morphology As the result, isolates of lactic acid bacteria were isolated from ... on low pH 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...
Ngày tải lên: 06/10/2015, 13:04
fermentation of dragon fruit juice by lactic acid bacteria
... 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 bacteria Concentration of lactic acid produced from A ... 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 ... test: All six bacteria strains could not produce bubbles when adding H2O2 3%, indicated negative results It can be concluded that these isolated bacteria strains belonged to lactic acid bacteria because...
Ngày tải lên: 06/10/2015, 13:04
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 ... 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, ... COMMITTEE i Abstract Lactic acid bacteria are used popularly for fruit juice fermentation because they are good source of probiotics for human In this study, lactic acid bacteria were isolated...
Ngày tải lên: 06/10/2015, 13:05
Acetic Acid Bacteria 1
... “Evolution of acetic acid bacteria during fermentation and storage of wine,” Appl Environ Microbiol., vol 48, 1984, pp.153-156 [2] G S Drydale and G H Fleet, “Acetic acid bacteria in som Australian ... ml distilled water and drops phenol phetalein, the amount of acetic acid in solution was being titrated Bacterial growth: Bacterial growth was quantified by measuring the absorbance of industrial ... were examined according to their acetic acid production by titration assay and their turbidity due to bacterial growth The results showed their acetic acid percentage after mentioned incubation...
Ngày tải lên: 16/09/2012, 23:41
Acetic Acid Bacteria 2
... nhi u hoá ch t ñ t ti n, khó ki m Tài li u tham kh o [1] J B Brian, Wood, The Lactic Acid Bacteria, The Lactic Acid Bacteria in Health and Disease [2] A.F Harper, E.T Kornegay, K.L Bryant, H R ... “Comparison of two strains of Lactobacillus acidophilus as dietary adjuncts for young calves”, J Dairy Sci 63 (1980) 964 Study on characteristics of lactic acid bacteria isolated in Hanoi Mai Dam Linh1, ... Vietnam - Out of 50 isolated lactic bacteria strains, 10 active strains were selected which have properties of Lactobacillus.7 - 10 selected strains producing lactic acid strongly (over 2000T),...
Ngày tải lên: 16/09/2012, 23:41
Acetic Acid Bacteria - screening of LAB strains
... 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 bacteria isolated ... 741-747, 2008 Table 2: Production of exopolysaccharides by lactic acid bacteria isolate Table 2: Continued Exopolysa 42 -ccarides Lactic acid bacteria (Mg lG1) Sources (%) L.fructvorans FW 29.0 "Wara" ... according to the method of Garcia-Garibay and Marshall [19] The lactic acid culture was treated with 17% (w/v) of 80% trichloroacetic acid solution and centrifuged at 16,000-x g at 4°Cfor 30min.The...
Ngày tải lên: 16/09/2012, 23:45
Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
... direction of knitted Ingeo™ Poly (lactic acid) [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 ... direction of knitted Ingeo™ 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 ... resilience RT % on knitted 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...
Ngày tải lên: 05/09/2013, 16:10
Đề tài : Nghiên cứu phân lập nhóm vi khuẩn lactic acid có tính chất đối kháng với vi khuẩn edwardsiella ictaluri gây bệnh gan thận mủ trên cá tra pangasianodon hypophthanlmus
... vi khuẩn thuộc nhóm ß-Proteobacteria (Zhang et al., 2002), α-Proteobacteria (Uroz et SVTH: Trần Trọng Nguyễn 28 MSSV:207111033 KHÓA LUẬN TỐT NGHIỆP al., 2003) γ-Proteobacteria (Uroz et al., 2003) ... vi sinh vật giàu vi khuẩn lactic acid thực phẩm lên men truyền thống sữa Tổng cộng có 50 mẫu nguyên liệu, sau trình sàng lọc qua môi trường chuyên biệt cho vi khuẩn lactic, kết thu 64 khuẩn lạc ... VTCC-B-614 Lactobacillus plantarum MRSB, MRSA VTCC-B-701 Lactobacillus acidophilus MRSB, MRSA VTCC-B-871 Pediococcus acidilactici MRSB, MRSA VTCC-B-800 Saccharomyces cerevisiae TSA or glucose...
Ngày tải lên: 27/04/2014, 17:03
Alternative media for lactic acid production by lactobacillus delbrueckii NRRL b 445
... CSL, 98 g of lactic acid were produced per euro of nutrients while only 50 g lactic acid were obtained per euro when the Mercier medium was employed where t is time, P is lactic acid concentration, ... to lactic acid For comparative purposes a batch fermentation using the Mercier medium with 90 g l¡1 glucose was also performed Figure shows the results of the batch experiments for lactic acid ... highest lactic acid concentration was obtained using the Mercier medium (76.2 g l¡1) However, a similar pattern was shown by the fermentation with 20 g l¡1 CSL, obtaining 70.7 g l¡1 lactic acid...
Ngày tải lên: 05/05/2014, 08:44
An economical approach for d lactic acid production utilizing unpolished rice
... concentration for Dlactic acid and reducing sugar analysis The D -lactic acid concentration (g/l) was estimated by colorimetric assay method (Taylor, 1996) For the calculation of D -lactic acid yield, ... utilized by lactic acid bacteria Although the highest production rate was obtained, the D -lactic acid concentration was low and the unit price Table Content of some essential amino acids (g/100 ... poly(L -lactic acid) and poly(D -lactic acid) by solid-state coextrusion Polym J 39, 953–960 Tanaka, T., Hoshina, M., Tanabe, S., Sakai, K., Ohtsubo, S., Taniguchi, M., 2006 Production of D -lactic acid...
Ngày tải lên: 05/05/2014, 08:44
Báo cáo hóa học: " Superhydrophobic poly(L-lactic acid) surface as potential bacterial colonization substrate" pptx
... xenobiotic degrading bacteria Process Biochem 38:909–914 doi:10.1016/S0032-9592(02)00173-5 Shi J, Alves NM, Mano JF (2008) Towards bioinspired superhydrophobic poly(Llactic acid) surfaces using ... doi:10.1186/2191-0855-1-34 Cite this article as: Sousa et al.: Superhydrophobic poly(L -lactic acid) surface as potential bacterial colonization substrate AMB Express 2011 1:34 Submit your manuscript to ... overnight at room temperature (21° C) Bacterial strains and culture conditions In order to assess the interaction between the distinct PLLA surfaces with different bacterial cell walls, this work included...
Ngày tải lên: 20/06/2014, 23:20
nghiên cứu phân lập nhóm vi khuẩn lactic acid có tính chất đối kháng với vi khuẩn edwardsiella
... vi khuẩn thuộc nhóm ß-Proteobacteria (Zhang et al., 2002), α-Proteobacteria (Uroz et SVTH: Trần Trọng Nguyễn 28 MSSV:207111033 KHÓA LUẬN TỐT NGHIỆP al., 2003) γ-Proteobacteria (Uroz et al., 2003) ... vi sinh vật giàu vi khuẩn lactic acid thực phẩm lên men truyền thống sữa Tổng cộng có 50 mẫu nguyên liệu, sau trình sàng lọc qua môi trường chuyên biệt cho vi khuẩn lactic, kết thu 64 khuẩn lạc ... VTCC-B-614 Lactobacillus plantarum MRSB, MRSA VTCC-B-701 Lactobacillus acidophilus MRSB, MRSA VTCC-B-871 Pediococcus acidilactici MRSB, MRSA VTCC-B-800 Saccharomyces cerevisiae TSA or glucose...
Ngày tải lên: 21/11/2014, 03:59
Engineered poly(l lactic acid) based nanofibers for osteogenic differentiation of human mesenchymal stem cells
... Poly(ethylene glycol) PEUU : Poly(ester urethane)urea PGA : Poly(glycolic acid) PLGA : Poly (lactic- co-glycolic acid) PLLA : Poly(L -lactic acid) PMMA : Poly(methylmethacrylate) pNIPAM : Poly(N-isopropylacrylamide) ... 961-974, 2011 Luong T H Nguyen, Susan Liao, Casey K Chan and Seeram Ramakrishna Electrospun Poly(L -lactic acid) Nanofibres Loaded with Dexamethasone to Induce Osteogenic Differentiation of Human Mesenchymal ... 13 N T H Luong, S Liao, C K Chan and S Ramakrishna, Electrospun Dexamethasone-loaded Poly-L -lactic acid nanofibers for bone graft materials Proceedings of International Conference for Micro &...
Ngày tải lên: 09/09/2015, 10:07
Structure property relationship of crystalline poly(lactic acid)s DFT DFPT studies and applications
... and organization 1.1 Overview of Poly (lactic acid) Poly (lactic acid) or Poly(lactide) (PLA) is a synthetic biopolymer of lactic acid, which can be derived by bacterial fermentation of carbohydrates ... Abbreviations List of Abbreviations PLA polylactic acid or polylactide sc stereocomplex PLLA poly(L -lactic acid) or poly(L-lactide) PDLA poly(D -lactic acid) or poly(D-lactide) DFT density functional ... Figures XVI Introduction 1.1 Overview of Poly (lactic acid) 1.2 Poly (lactic acid) Polymorphs and Stereocomplex 10 1.3 Motivations and Objectives ...
Ngày tải lên: 09/09/2015, 18:56