organic acid esters of monoglycerides
Food emulsions, fourth edition
Ngày tải lên :
23/05/2014, 11:36
... 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 ... surfactants (monoglycerides and diglycerides, sorbitan esters of fatty acids, polyoxyethylene sorbitan esters of fatty acids, phospholipids, and many others) contain long-chain fatty acid residues, ... with the adsorbed whey protein of the emulsion droplet surfaces (38) Similarly, in the acid gelation of milk, which is part of the manufacture of yogurt, the globules of milk fat are homogenized...
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Effect of unsaturated fatty acid esters of biodiesel fuels on combustion, performance and emission characteristics of a DI diesel engine
Ngày tải lên :
05/09/2013, 15:28
... Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.411-430 421 % of Premixed combustion % of Diffusion combustion Trend line of % of diffusion combustion Trend line of % of premixed ... volume, JT 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of tallow oil methyl ester by volume, SFCt 50:50 = Blend of 50 % of sunflower oil methyl ester and 50 % of coconut oil methyl ... Where, JT 80:20 = Blend of 80 % of jatropha oil methyl ester and 20 % of tallow oil methyl ester by volume, JP 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of palm oil methyl ester...
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Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
Ngày tải lên :
05/09/2013, 16:10
... 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 ... [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 ... 3.21 3.03 2.59 Figure Effect of time of heatsetting on tensile energy WT g.cm/cm2 in warp direction of knitted Ingeo Poly (lactic acid) fabric Figure 10 Effect of time of heatsetting on tensile...
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SULPHONIC ACID ESTERS
Ngày tải lên :
25/10/2013, 16:20
... 118 Sulphonic Acid Esters Fig 6.1 Typical sulphonic acid esters of polysaccharides Table 6.1 Influence of reaction time and temperature on the conversion of mercerised cellulose (cotton ... from squid pens 126 Sulphonic Acid Esters Fig 6.8 Different types of sulphonic acid derivatives of the 2-deoxy-2-amino repeating unit in chitin Table 6.5 Preparation of chitin tosylates heterogeneously ... of view The few examples found in the literature are summarised in Table 6.7 128 Sulphonic Acid Esters 6.3 Miscellaneous Sulphonic Acid Esters Various other aromatic or aliphatic sulphonic acid...
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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
Ngày tải lên :
27/04/2014, 17:03
... 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, Vibrio… gây Những nghiên cứu gần cho thấy bổ sung BioF ... Các chủng vi khuẩn nitrate hóa tiết polymer cho phép chúng gắn kết bề mặt hình thành nên biofilm Và biofilm làm giảm đến 50% tỷ lệ ammonia nitrite môi trường ao nuôi (Sahu et a.l, 2008) Ngoài ... 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...
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Alternative media for lactic acid production by lactobacillus delbrueckii NRRL b 445
Ngày tải lên :
05/05/2014, 08:44
... l¡1 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, ... studies of the conversion of different substrates to lactic acid using lactobacillus bulgaricus, Biotechnol Prog, 16: 305–314 Chahal, S.P., 1991, Lactic acid, in Ullmann’s Encyclopedia of Industrial ... fermentation with 20 g l¡1 CSL, obtaining 70.7 g l¡1 lactic acid at the end of the fermentation Using lower concentrations of CSL, lower lactic acid concentrations and volumetric productivities were...
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An economical approach for d lactic acid production utilizing unpolished rice
Ngày tải lên :
05/05/2014, 08:44
... S0 amino acids and B-vitamins were essential to the growth of lactic acid bacteria (Nancib et al., 2005) However, the contents of various nutrients of the rice dregs were more than that of the ... optical purity D-lactic acid producing strain (content of D-form lactic acid is more than 97.5%) used in this study, was provided by Guangshui Chemical Company of Hubei Province of China MRS medium ... found that the contents of amino acids and B-vitamins of the unpolished rice were generally more than that of the corn It was reported that Although the highest D-lactic acid concentration was...
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Analysis and practical implementation of a model for combined growth and metabolite production of lactic acid bacteria
Ngày tải lên :
05/05/2014, 08:44
... 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 ... neglected Application of the adapted model of Nicolaı et al ¨ to the experimental data set of cell concentration N, total lactic acid concentration LaHtot and pH consists out of two major steps, ... 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...
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Báo cáo hóa học: " Superhydrophobic poly(L-lactic acid) surface as potential bacterial colonization substrate" pptx
Ngày tải lên :
20/06/2014, 23:20
... also seen by optical profilometry (Figure 3) that indicated an average roughness of 8.28 μm and a diameter of each papillae of 8.97 μm, which is consistent with the size of such structures seen ... morphology of both kinds of PPLA surfaces was assessed through scanning electron microscopy (SEM), while the roughness of the superhydrophobic PLLA substrate was assessed using a NT1100Optical Profiler ... for 24 h in 15 mL of tryptic soy broth (TSB, Merck), at 37°C under a constant agitation of 120 rpm (SI50; Stuart Scientific, Redhill, UK) After this period, an aliquot of 50 μL of the culture suspension...
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Probiotic potential of lactic acid bacteria isolated from chicken gastrointestinal digestive tract pot
Ngày tải lên :
07/07/2014, 19:20
... antimicrobial effect of organic acids lies in the reduction of pH, as well as the undissociated form of the molecules It has been proposed that the low external pH causes acidification of the cell cytoplasm, ... Salmonella sp The antibacterial activity of LAB may often be due to the production of organic acids, with a consequent reduction in ´ pH, or to the production of hydrogen peroxide (Gonzalez et al ... general, the acid tolerance of LAB depends on the pH profile of H?-ATPase and on the composition of the cytoplasmic membrane This is largely influenced by the type of bacterium, the type of growth...
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Báo cáo khoa học: "Isolation of cholesterol-lowering lactic acid bacteria from human intestine for probiotic use" ppsx
Ngày tải lên :
07/08/2014, 18:20
... culture 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 ... In vitro cholesterol-lowering test: Among isolated 100 strains of LAB, of Streptococcus strains, 11 of Lactobacillus strains and of Bifidobacterium strains were selected as provisional probiotic ... 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...
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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
Ngày tải lên :
11/08/2014, 08:21
... administration of MPM seven days prior to sensitization Groups of 10 CD-1 mice received each day by gavages (per os (p.o)), 100 μL of reconstituted lyophilized MPM, 100 μL of water or 100 μL of water-soluble ... 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% ... potential in the inhibition of development of inflammatory disease and reduction of its intensity Moreover, Page of 10 (page number not for citation purposes) Journal of Inflammation 2007, 4:6...
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nghiên cứu phân lập nhóm vi khuẩn lactic acid có tính chất đối kháng với vi khuẩn edwardsiella
Ngày tải lên :
21/11/2014, 03:59
... 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, Vibrio… gây Những nghiên cứu gần cho thấy bổ sung BioF ... Các chủng vi khuẩn nitrate hóa tiết polymer cho phép chúng gắn kết bề mặt hình thành nên biofilm Và biofilm làm giảm đến 50% tỷ lệ ammonia nitrite môi trường ao nuôi (Sahu et a.l, 2008) Ngoài ... 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...
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Engineered poly(l lactic acid) based nanofibers for osteogenic differentiation of human mesenchymal stem cells
Ngày tải lên :
09/09/2015, 10:07
... Table 2.9 Classification of stem cells [23-30] 51 Table 2.10 Advantages and disadvantages of fabrication methods of nanofibers 79 Table 2.11 Clinical trials using nanofibers 88 Table ... nanofibers of PLLA with the average diameter of 501 63 (nm) were fabricated 102 Figure 3.2 Actin Cytoskeleton and Focal Adhesion staining of human MSCs at passage cultured on the PLLA nanofibrous ... images of bone nodules (indicated by arrows) produced by human MSCs of passage on the PLLA nanofibers and TCPS plates (control) in the Ost medium after 21 days of culture The cells on the nanofibrous...
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Structure property relationship of crystalline poly(lactic acid)s DFT DFPT studies and applications
Ngày tải lên :
09/09/2015, 18:56
... their 50/50 blends XV List of Figures List of Figures Figure 1.1 Two enantiomeric forms of lactic acid: (S)- and (R)- 2-hydroxypropionic acid Figure 1.2 Three stereoisomers of lactide which lead to ... 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 from ... 1.272 g/cm3, observed heat of fusion of beta sample 61 J/g, calculated heat of fusion of a beta crystal 124 J/g) [77] -form: The existence of a third crystal modification of PLLA or the form has...
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The roles of lactic acid bacteria in host inflammatory responses
Ngày tải lên :
13/09/2015, 19:50
... barrier function of the intestinal mucosa, helping in the prevention of the attachment of pathogenic microorganisms and the entry of allergens Alteration of the microbial flora of the intestine ... mucosal 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, ... 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...
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fermentation of mango juice by lactic acid bacteria
Ngày tải lên :
06/10/2015, 12:57
... 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 ... 48 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 ... 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
Ngày tải lên :
06/10/2015, 13:04
... level of at least log CFU/mL The survival rate of all isolates at the level 10 of about 8.02-8.69 log CFU/mL of fermented carrot juice Addition, the result of lactic acid concentration measured of ... 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 ... 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
Ngày tải lên :
06/10/2015, 13:04
... conditions of fermentation were determined as follow: pure dragon fruit juice, 9% of supplemented sugar, 37ºC of fermentation temperature, 48 hours of fermentation, and log CFU/mL of inoculum ... identification of LAB isolates at genus level 3.2 Acidity tolerant ability of LAB isolates 3.3 Application in producing of fermented dragon fruit juice by LAB 3.4 Dilution rates of dragon ... sugar, 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...
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