acetic acid esters acetem

... (monoglycerides and diglycerides, sorbitan esters of fatty acids, polyoxyethylene sorbitan esters of fatty acids, phospholipids, and many others) contain long-chain fatty acid residues, which provide the ... against acid precipitation by interaction with pectin (52), although the presence of pectin in emulsions can also lead to phase separation (53) Caseinate emulsions can also be stabilized against acidification ... interfacial material can be composed of proteins or of small emulsifiers such as monoglycerides, esters of fatty acids, or phospholipids, or mixtures of a number of these components Finally, the aqueous...

Ngày tải lên: 23/05/2014, 11:36

... Environment (IJEE), Volume 1, Issue 3, 2010, pp.411-430 415 Table Fatty acid methyl composition of different biodiesel fuels Fatty acid methyl ester composition (FAME) in wt % Lino- LinoLauric Myristic ... 0.30 JCt 50:50 20.88 10.40 13.71 7.16 26.11 18.21 0.12 Where, % of US = % of unsaturated fatty acid esters in the respective biodiesel Biodiesel Others % of US 0.00 0.11 0.00 0.00 9.85 1.54 0.74 ... fatty acid composition has more density but less viscosity Biodiesel with more unsaturated has lower cetane number and heating value respectively Biodiesel with high-unsaturated fatty acid composition...

Ngày tải lên: 05/09/2013, 15:28

... 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 ... 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 of time ... 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

... Sulphonic Acid Esters 6.3 Miscellaneous Sulphonic Acid Esters Various other aromatic or aliphatic sulphonic acid chlorides have been reacted with polysaccharides Substituted benzenesulphonic acid esters ... product 120 Sulphonic Acid Esters gelation during the addition of the reagent The products have to be precipitated and washed carefully with ethanol/hexane or methanol /acetic acid The pH value has ... 118 Sulphonic Acid Esters Fig 6.1 Typical sulphonic acid esters of polysaccharides Table 6.1 Influence of reaction time and temperature...

Ngày tải lên: 25/10/2013, 16:20

... cứu suy V paradoxus cắt đứt phân tử AHL enzyme AHL acylase, giải phóng homoserine lactone acid béo Sau đó, acid béo sử dụng nguồn cacbon thông qua đường dẫn ß-oxidation Cần có thêm nhiều nghiên ... TSB 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 ... Thứ ctv, 2004a) Ngoài chế phẩm probiotic trên, chế phẩm sinh học BioF có chứa chủng Lactobacillus acidophillus sử dụng nuôi trồng thủy sản có tác dụng tăng khả hấp thụ thức ăn hạn chế bệnh Aeromonas,...

Ngày tải lên: 27/04/2014, 17:03

... supernatants were used immediately for various analyses Analytical Methods Glucose, lactic acid and acetic acid were determined by high performance liquid chromatography (HPLC) using a Transgenomic ... 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, ... 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 and...

Ngày tải lên: 05/05/2014, 08:44

... of reducing sugar was determined by the 3,5 dinitro salicylic acid method (Miller, 1959) The amino acids were measured by amino acid analyzer (Beckman-6300) referring to GB/T 5009.124-2003 of ... 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, the ... 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 g)...

Ngày tải lên: 05/05/2014, 08:44

... 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 and ... concentration of undissociated lactic acid, and a, b, c and d parameters Nicolaı et al assume a single buffer system present ¨ in the medium, consisting of a weak acid BuH and its well solvable conjugated...

Ngày tải lên: 05/05/2014, 08:44

... et al 1999; Nakajima et al 1999; Genzer and Efimenko 2000; Nakajima et al, 2000) Poly(L-lactic acid) (PLLA) is a biodegradable polymer that has been used to produce superhydrophobic surfaces ... Shi J, Oramas E, Santos JL, Tomás H, Mano JF (2009) Bioinspired superhydrophobic poly(L-lactic acid) surfaces control bone marrow derived cells adhesion and proliferation J Biomed Mater Res A ... doi:10.1016/S0032-9592(02)00173-5 Shi J, Alves NM, Mano JF (2008) Towards bioinspired superhydrophobic poly(Llactic acid) surfaces using phase inversion-based methods Bioinspir Biomim http://3bs.expertissues.org/download.php?file=303&type=4&doc=pubs...

Ngày tải lên: 20/06/2014, 23:20

... effect of bile acids would be the disaggregation of the lipid bilayer structure of the cell membrane Conjugated bile acids are less inhibitory than free bile acids (cholic and deoxycholic acid, DCA) ... organic acids produced during the fermentation process depended on LAB species or strains, culture compositions and growth conditions (Lindgren and Dobrogosz 1990) Lactic acid is the major organic acid ... 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...

Ngày tải lên: 07/07/2014, 19:20

... 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 ... 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, ... detected by the plate-assay method A, MRS supplemented with 0.5% TDCA (sodium salt of taurodeoxycholic acid) and 0.37% g/l CaCl2; B, MRS as control; Bile-salt hydrolysis positive was represented by black...

Ngày tải lên: 07/08/2014, 18:20

... (mg or μg/100 g) Riboflavine (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 ... 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 ... 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

... cứu suy V paradoxus cắt đứt phân tử AHL enzyme AHL acylase, giải phóng homoserine lactone acid béo Sau đó, acid béo sử dụng nguồn cacbon thông qua đường dẫn ß-oxidation Cần có thêm nhiều nghiên ... TSB 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 ... Edwardsiella ictaluri phân lập từ cá tra bệnh mủ gan, cho thấy chủng cho kết kháng với Colistin, Oxolinic acid, Streptomycin, Cefepime, Sulfa+trime, Ceftriaxone, Cefazolin, Gentamycin, Aztreonam, Cefixim,...

Ngày tải lên: 21/11/2014, 03:59

... bone matrix DI water : De-ionized water DNA : Deoxyribonucleic acid EDX : Energy dispersive X-ray EDTA : Ethylenediaminetetraacetic acid EGF : Epidermal growth factor ESCs : Embryonic 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) ... PVA : Poly(vinyl alcohol) RGD : Arginine-Glycine-Aspartic Acid rh-BMP : Recombinant human bone morphogenetic protein RNA : Ribonucleic acid RT-PCR : Reverse transcription polymerase chain reaction...

Ngày tải lên: 09/09/2015, 10:07

... 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 ... the scope 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 ... 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

... - Deoxyribonucleic acid dNTP - Deoxynucleotide triphosphate DTT - Dithiothreitol xv dUTP - Deoxyuridine triphosphate EC - Enterococcus EDTA - Ethylenedia mine tetraaacetic acid ELISA - Enzyme-linked ... immune responses upon 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, ... positive They belong to lactic acid bacteria (LAB) which is an important group in maintaining human health The role of intestinal microflora, such as several strains of lactic acid bacteria (LAB) in...

Ngày tải lên: 13/09/2015, 19:50

... 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 data ... 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 and...

Ngày tải lên: 06/10/2015, 12:57

... 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 ... lactic acid bacteria by molecular technique 11 3.5 Study on the effect of dilution ratio and sugar content 12 3.6 Studying the effect of inoculums density, temperature and time of lactic acid ... 3 RESULTS AND DISCUSSION 3.1 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...

Ngày tải lên: 06/10/2015, 13:04

... 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” ... 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 strain ... concentration of acid in different dilution rates of dragon fruit juice and sucrose rates At the same dilution rate, the acid index dropped down when sugar concentration grew up Acid concentration...

Ngày tải lên: 06/10/2015, 13:04