relationship between structure and biological activities of ribopolysaccharides

... extraction process of fucoidan from the method of Bilan et al to study the structure and biological activity of fucoidans 4.2 Content of fucoidan and of some water soluble polysaccharides of 06 brown ... reveals bioactivity of fucoidan but the relationship between the length of branch and the level of bioactivity was not clear CONCLUSION Studying the structure and biological activity of fucoidan from ... instance, pages of introduction, 45 pages of overview, 21 pages of research methods, 15 pages of experiment, 79 pages of result and discussions, pages of conclusions and recommendations, pages of publication

Ngày tải lên: 09/01/2020, 15:33

... MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY FOR SCIENCE AND TECHNOLOGY - PHAM THI NINH STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... constituents and biological activities of Litsea glutinosa (Lour.) Rob (Lauraceae) and Lepisanthes rubiginosa (Roxb.) (Sapindaceae) in Vienam: Objective of the study in the thesis The samples of Litsea ... constituents and biological activities of species Lepisanthes rubiginosa (Roxb.) Leenh are investigated From a buthanol extract of this species, 11 compounds have been isolated and nine ones of them

Ngày tải lên: 10/01/2020, 06:54

... extraction process of fucoidan from the method of Bilan et al to study the structure and biological activity of fucoidans 4.2 Content of fucoidan and of some water soluble polysaccharides of 06 brown ... reveals bioactivity of fucoidan but the relationship between the length of branch and the level of bioactivity was not clear CONCLUSION Studying the structure and biological activity of fucoidan from ... instance, pages of introduction, 45 pages of overview, 21 pages of research methods, 15 pages of experiment, 79 pages of result and discussions, pages of conclusions and recommendations, pages of publication

Ngày tải lên: 15/01/2020, 10:02

... MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY FOR SCIENCE AND TECHNOLOGY - PHAM THI NINH STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... constituents and biological activities of Litsea glutinosa (Lour.) Rob (Lauraceae) and Lepisanthes rubiginosa (Roxb.) (Sapindaceae) in Vienam: Objective of the study in the thesis The samples of Litsea ... constituents and biological activities of species Lepisanthes rubiginosa (Roxb.) Leenh are investigated From a buthanol extract of this species, 11 compounds have been isolated and nine ones of them

Ngày tải lên: 17/01/2020, 06:58

... silica cell and its ellipticity was scanned from 190 to 250 nm at a sensitivity of 100 millidegrees, response time of 1s, bandwidth of nm, and a scan speed of 100nm/min The values of molar ellipticities ... the importance of a lack of structure in nondenaturing conditions but an inducible structure in the presence of the hydrophobic environment of the membrane, (ii) the presence of a positively ... VNU Journal of Science: Natural Sciences and Technology, Vol 31, No (2015) 44-53 Effect of Secondary Structure on Biological Activities of Antimicrobial Peptides Mai Xuân

Ngày tải lên: 18/03/2021, 10:31

... Ayhan ULUBELEN4 Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, ˙ Bezmialem Vakıf University, Istanbul, Turkey Department of Chemistry, Faculty of Arts and Sciences, Mu˘ gla University, ... of asymmetric synthesis 619 TOPC ¸ U et al./Turk J Chem menopausal problems and as a sedative and memory enhancer They exhibited antituberculosis, cytotoxic, and liver protective activities and ... such as in the treatment of some heart diseases, and as a liver protective and memory enhancer agent 8,13 In European folk medicine, particularly S officinalis and S lavandulaefolia have been used

Ngày tải lên: 12/01/2022, 22:48

... as sets at 7.96–8.36 ppm and 10.08–12.05 ppm were attributed to the -N=CH bond and –NH functions of cis- and trans-conformers, respectively The upfield lines of -N= CH and 2NH protons were attributed ... Motivated by these findings and in continuation of our ongoing efforts, we would like to report here the synthesis and investigation of biological activities of new bitriazolyl derivatives incorporating ... for biological activity in a single structure Experimental All of the chemicals were purchased from Fluka Chemie AG (Buchs, Switzerland) and used without further purification Melting points of

Ngày tải lên: 12/01/2022, 22:52

... the relationship between motivations and language learning strategies of first-year students at Faculty of Electrical Engineering Technology, Hanoi University of Industry” is the result of my ... LIST OF ABBRIVIATIONS iv LISTS OF FIGURES, TABLES AND CHARTS v PART A: INTRODUCTION 1 Statement of the problem and rationale of the study Objectives of the ... investigates into the relationship between motivations and language learning strategies in the context of learning English as a second language of first-year students at Faculty of Electrical Engineering

Ngày tải lên: 19/07/2017, 19:26

... sonographic visualization of Correspondence and reprint requests: Cande V Ananth, PhD, MPH, Division of Epidemiology and Biostatistics, Department of Obstetrics, Gynecology, and Reproductive Sciences, ... thrombus, and chronic villitis Results? ?Of clinically diagnosed cases, the sensitivity and specificity for a histologic confirmation of abruption were 30.2% and 100%, respectively Presence of retroplacental ... Diagnosis of Placental Abruption: Relationship between Clinical and Histopathological Findings Denise A Elsasser, MPH1, Cande V Ananth, PhD, MPH1, Vinay Prasad, MD2, Anthony M Vintzileos, MD3, and

Ngày tải lên: 29/09/2017, 10:07

... study will develop and test a theoretical model of the quality of franchisorfranchise relationship to determine the impacts of the quality of the relationship between franchisor and franchise on ... trust and commitment The study additionally finds the role as determinants of relationship success of trust and commitment and the importance of evaluation of franchisor support to the success of ... understanding of relationships between franchisor and franchise However, the franchisor-franchise relationship has yet to be fully explored, knowledge of the factors that produce a high quality relationship

Ngày tải lên: 18/12/2017, 14:46

... UNIVERSITY OF ECONOMICS INSTITUTE OF SOCIAL STUDIES HO CHI MINH CITY THE HAGUE VIETNAM THE NETHERLAND VIETNAM - NETHERLANDS PROGRAMME FOR M.A IN DEVELOPMENT ECONOMICS The Relationship between Internationalization ... UNIVERSITY OF ECONOMICS INSTITUTE OF SOCIAL STUDIES HO CHI MINH CITY THE HAGUE VIETNAM THE NETHERLANDS VIETNAM - NETHERLANDS PROGRAMME FOR M.A IN DEVELOPMENT ECONOMICS The Relationship between Internationalization ... Internationalization and Manufacturing Firms’ Performance in Vietnam: The Moderating Effect of Organizational Slacks A thesis submitted in partial fulfilment of the requirements for the degree of MASTER OF ARTS

Ngày tải lên: 10/12/2018, 23:39

... .74 EXECUTIVE SUMMARY The purpose of this thesis is to explore the causes of poor relationship between sales and marketing staffs of Industry Business team of Schneider Electric Vietnam that ... they open the branch office here and they did dumping the market with very low-price offer and good sales terms and condition support to conquest more and more customer from us And this is not just ... Lack of discussion and sharing information between sales & marketing (A-1.4) Potential causes identification and validation Conflict of interest between sales & marketing (A-3.1 & A3.4) Lack of

Ngày tải lên: 08/11/2019, 22:48

... composition and extent of disturbances and successional strategies of the stands The analysis of the tree flora of the study area showed that the families of Fabaceae, Burseraceae, Lauraceae and Meliaceae ... individuals were of large diameter The total basal area of Fabaceae and Burseraceae were 6.36 m2/ha and 5.72 m2/ha, representing 15.23% and 13.70% of the entire JOURNAL OF FORESTRY SCIENCE AND TECHNOLOGY ... zone of study covers a total of 26,490.13 natural forest It lies between 17010’00’’ and 17040’00’’N of northern latitude and between 106000’00’’ and 107000’00’’E of longitude The annual climate

Ngày tải lên: 09/01/2020, 12:34

... MINISTRY OF EDUCATION VIETNAM ACADEMY AND TRAINING OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY -Nguyen Dinh Chung STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ACTIVITIES ... thesis  Isolation and determination of chemical structures of compounds isolated from the tubers of O japonicus;  Evaluation on the cytotoxic and anti-inflammatory activities of the isolated compounds ... source of medicine for the life In the course of screening program of extracts from Vietnam medicinal plants with cytotoxic and anti-inflammatory activities, the methanolic extract of the tubers of

Ngày tải lên: 10/01/2020, 06:45

... provides the first step in the study of the relationship between these two distinct activities Experimental procedures Expression of I-AniI I-AniI was expressed and purified as described previously ... determinations were performed for each nucleic acid substrate and yielded an average ratio of DNA/protein of 1.09 : and an average ratio of RNA/protein of 1.12 : Multiple-turnover (substrate in excess) DNA ... concentration of KCl, there was a correlation between inhibition of endonuclease activity and inhibition of splicing activity indicating that RNA binding can be monitored by measuring inhibition of the...

Ngày tải lên: 17/03/2014, 10:20

... the structure of peptide cER consists of two b-turns, located at the N- and C-termini A comparison of the b-turn structure of cER with the similar region in the crystal structure of rat and human ... bonds between NH of Thr5 and CO of Arg2, as well as NH of Arg2 and CO of Thr5 Structure of cyclic hexapeptides – cYT peptide The NMR data of the cYT peptide were indicative of its flexible nature ... the peptide and the proximity of amide protons due to compact nature of the structure However, the coupling constant of most of the amide protons was in the range of 6–8 Hz, suggestive of rapidly...

Ngày tải lên: 19/02/2014, 13:20

... Fragments of HSQC and HMBC spectra of compound Labels illustrate assignment of the amide linkage between the amino group of Asp and the carboxyl group of GalA residue E Scheme The structures of oligosaccharides ... linkages Amide linkage between C-6 of residue E and an amino group of the aspartic acid was identified on the basis of the HMBC correlation between H-2 of aspartic acid and C-6 of the GalA E, thus ... the linkage position, and between H-1 of a monosaccharide and H-5 of a glycosylating residue in the event of an a-(1–2)-linkage Respective HMBC correlations between H-1 and a carbon at the transglycosidic...

Ngày tải lên: 19/02/2014, 16:20

... 3.1.4 Chemical structure of flavonoids 68 3.1.5 Chemical structure of nitrogen compounds 78 3.1.6 Chemical structure of phenolic compounds 83 3.1.7 Chemical structure of steroids and terpenoids ... OA of the mixed solution (*) with replacement 25µl of buffer B, instead of 25µl of samples OA2: the OA of the mixed solution (*) with replacement 50µl of buffer B, instead of 25µl of samples and ... Hz, H-10) and 6.01 (s, H-6) The splitting of signals and coupling constants of protons at δH 8.28, 7.01 and 6.94 demonstrated two ortho-coupled protons of H–1, H–2 and H–3 of the A ring and the...

Ngày tải lên: 24/08/2015, 12:40

... compositions and biological activities of Annona glabra L So, the thesis’s title was proposed to be "Study on chemical compositions and biological activities of Annona glabra L." Subject and contents of ... spectrum of Figure 4.32 COSY spectrum of 4.2 Evaluation of biological activities Figure 4.29 DEPT spectrum of Figure 4.31 HMBC spectrum of Figure 4.33 NOESY spectrum of t 4.2.1 Cytotoxic activity of ... using for determination of chemical structure of compounds General method using for determination of chemical structure of the compounds is a combination of physical parameters and modern spectroscopic...

Ngày tải lên: 28/04/2016, 17:48