ph water activity nutrients and biological structure of fruit
Tài liệu Báo cáo khoa học: The structure and biological characteristics of the Spirochaeta aurantia outer membrane glycolipid LGLB pdf
... chromatography Gel chromatography was carried out on Sephadex G-50 (2.5 · 95 cm) and Sephadex G-15 columns (1.6 · 80 cm) in pyridinium-acetate buffer, pH 4.5 (4 mL of pyridine and 10 mL of AcOH in L of ... 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 ... present in the products and were identified, and the ratio of structures and was close to : All chemical shifts remained mostly unchanged with the exception of H/C-2 and H/C-3 of the glycerol residue...
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Tài liệu Báo cáo khoa học: Endotoxic activity and chemical structure of lipopolysaccharides from Chlamydia trachomatis serotypes E and L2 and Chlamydophila psittaci 6BC pdf
... salt in water (w/v), heated at 68 °C for 10 and cooled on ice After centrifugation (3000 g, 30 min), the water phase was removed and the phenol phase was extracted again with 100 mL of 2% aqueous ... sodium After centrifugation and separation as before, the extraction of the phenol phase was repeated again The water layers were combined, dialyzed against water and lyophilyzed (yield 1.55 g), ... loss of phosphate or from cation adduct ions Comparison with Fig 3B and C demonstrated that the structure of de-O-acylated LPS from C trachomatis L2 and E were nearly identical, whereas the LPS of...
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Crystal structure, optical properties and biological imaging of two curcumin derivatives
... cross-section values of s of the compounds A and B are 386 and 418 GM (1 GM ¼ 10À50 cm4 s photonÀ1 moleculeÀ1) in DMF solution, respectively 3.4 Cytotoxicity assay and biological images of two-photon microscopy ... later The structures of A and B are shown in Fig 2, which revealed that the molecular structures of A and B are similar and also symmetric to our satisfaction Selected bond lengths ( and bond ... 1.028 Gof on F2 314 G Xu et al / Dyes and Pigments 101 (2014) 312e317 Fig Molecular structure of A and B showing 50% probability displacement 3.2 Linear absorption spectra and single-photon excited...
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Báo cáo nghiên cứu khoa học " HYDROLOGICAL AND SEDIMENTARY STRUCTURE OF THE WATER COLUMN IN THE BACH DANG - CAM ESTUARY " ppsx
... budget indicated a water loss by leakage though channels, mangroves and wetlands, which accounts for 20% and 42% of the liquid contributions of the total inputs in the wet and dry season, respectively ... is water density calculated according to the UNESCO 1983 polynomial formula, h is the water depth, g is the acceleration of gravity and < > stands for averaging over the water column As the water ... (black) and dry (grey) seasons at the Cam (left), Bach Dang (center) and Dinh Vu (right) stations, averaged over a tidal cycle Different sources of perturbation can influence the structure of the water...
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Current status and biological characteristics of giant freshwater prawn (macrobrachium rosenbergii de man, 1879) cultured in the brackish water environment
... Tra Vinh, Bac Lieu, and College of Aquaculture and Fisheries (Can Tho University) 3.4 Study Methods 3.4.1 Survey and evaluation of the status of freshwater prawn in brackish water in Mekong Delta ... reports of Department of Agriculture and Rural Development, Fisheries Division in Tra Vinh and Bac Lieu Collected information and data include statistics on culture area and production of freshwater ... technical and financial efficiency of some freshwater prawn pond culture trials in brackish water area 1.3 Research activities Surveying the status of freshwater prawn in brackish water in Mekong...
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the risk and term structure of interest rates
... Risk and Term Structure of Interest Rates • The risk structure of interest rates looks at bonds with the same term to maturity and different interest rates • The term structure of interest ... over the life of the long-term bond • Buyers of bonds not prefer bonds of one maturity over another; they will not hold any quantity of a bond if its expected return is less than that of another ... determined by the demand for and supply of that bond • Investors have preferences for bonds of one maturity over another • If investors have short desired holding periods and generally prefer...
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Báo cáo khoa học: Structural and biological effects of a b2- or b3-amino acid insertion in a peptide Application to molecular recognition of substance P by the neurokinin-1 receptor ppt
... conformations, Phe7, Phe8, Leu10, and Met11 being key elements of the SP pharmacophore [21] N-methylation of Gly9, i.e [Sar9]SP, as well as proline Fig Superposition of selected conformers of b2-HAla ... b2- and b3-peptides with proteinaceous side chains Synthesis and solution structures of constitutional isomers, a novel helical secondary structure, and the influence of solvation and hydrophobic ... aromatic ring and the orientation (v1 and v2) of this phenylalanine have to be conserved for full biological potencies of the peptide [41] It is possible that the side chain of b2-HPhe may not...
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Báo cáo khoa học: Isolation, characterization, sequencing and crystal structure of charybdin, a type 1 ribosome-inactivating protein from Charybdis maritima agg. potx
... Overall structure of charybdin b-Strands are shown in blue and a-helices in red The structural elements are labeled as follows: b-strands 1–10 and helices A–J The N-termini and C-termini of the ... mechanism of action of the toxic enzyme [16,17] It was found that replacement of Tyr (in ricin position 80) with Phe decreased activity by a factor of 15, and replacement with Ser decreased activity ... (dimensions · 10 cm) was packed with phenyl-Sepharose CL-4B (Pharmacia, Upsala, Sweden) and equilibrated with 10 column volumes of 60 mm sodium phosphate, and 0.75 m ammonium sulfate at 10 °C...
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Báo cáo khoa học: "Parsing with Treebank Grammars: Empirical Bounds, Theoretical Models, and the Structure of the Penn Treebank" ppt
... span? For T RIE and L IST, an active state cor- n Figure 12: Grammar sizes: active state counts responds to a prefix of a rule and is a mix of POS tags and phrasal categories, each of which must ... using the bottoms of chains increases the frequency of tags relative to categories 16 This is also false; tags occur slightly more often at the beginnings of rules and less often at the ends ... number of tags and of categories in Call this pair the signature of For a given signature , let be the number of active states in the grammar which have that signature Now, take a state of signature...
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hydrothermal synthesis and crystal structure of a novel one - dimensional tritungstate
... piperazine, and 4,4’-bipyridine, a few new organicrinorganic hybrid phases are obtained and structurally identified using the single crystal X-ray diffraction method Brief crystal data of one of the phases, ... crystalline phase with similar product quality and morphology The reaction is then rationalized by using Na 2WO4 as W 6q source instead of WO that gives rise to monophasic product of compound ... 2q cations occupy interstrand regions 4y of the W6 O 20 chains and exhibit strong hydrogen bond network to terminal and bridging oxo groups of the anionic 4y chains of W6 O 20 X Crystal data...
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the role of morphology and crystallographic structure of metal oxides
... chemical composition, morphology and crystallographic structure, catalytic activity of sensing material, specificity of its interaction with gas surrounding, and peculiarities of the adsorption/desorption ... crystallographic direction and another in the {2 1} and {3 1} directions So, the determination of crystallographic planes with optimal combinations of adsorption/desorption and catalytic parameters, and ... basis of such materials, it is necessary to expand our understanding of gas sensor mechanism in nanoand polycrystalline oxides For example, it is necessary to establish the role of morphology and...
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Governance and organizational structure of the inter-agency secretariat to the United Nations International Strategy for Disaster Risk Reduction (ISDR) pot
... reviews and surveys to improve the structure of the Organization and its responsiveness to the requirements of programmes and legislative mandates, and monitor the effectiveness of the systems of ... United Nations’ development and humanitarian spheres of activity and also enhance the visibility and profile of the ISDR secretariat in supporting this work Recommendations and (2) The Under-Secretary-General ... of the proposed delegation of authority to the ISDR secretariat will require building the necessary capacity and establishing a structure that upholds the principle of segregation of duties and...
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Báo cáo khoa học: Inhibitory properties and solution structure of a potent Bowman–Birk protease inhibitor from lentil (Lens culinaris, L) seeds ppt
... measurement of k*on and k*off At [LCTI] [trypsin] ẳ 1.1 and 2.25 the conversion of LCTI into LCTI* (Fig 3, curves and 3), allowed the simultaneous computation of koff, k*on and k*off The kon ... properties and NMR structure of a lentil BBI E M Ragg et al Fig Hydrolysis of 213 lM BApNa as function of time in the presence of 0.1 lM trypsin (pH 8.2, 37 C) and the following amounts of LCTI: ... min)1 and to 3.85 min)1 and KM values of 1250 lm and 850 lm for BApNA and GPpNA, respectively, by means of standard LineweaverBurk analysis of initial rate kinetics Fitting of the experimental data...
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Báo cáo khoa học: "PCFGs, Topic Models, Adaptor Grammars and Learning Topical Collocations and the Structure of Proper Names" ppt
... A graphical model “plate” representation of an LDA topic model Here is the number of topics, m is the number of documents and n is the number of words per document ument in a collection of documents ... consists of the set of trees with whose root node is labelled X and whose ith child is a member of TBi 1149 The set of trees generated by the CFG is TS , where S is the start symbol, and the set of ... model of hierarchical structure often used to describe natural language syntax A Context-Free Grammar (CFG) is a quadruple (N, W, R, S) where N and W are disjoint finite sets of nonterminal and...
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Comparison of composition (nutrients and other substances) of organically and conventionally produced foodstuffs: a systematic review of the available literature doc
... neo-chlorogenic acid, catechol Phosphorus derivatives Phytate-phosphorus, phytic acid Phosphate Phosphate Phytoalexin Resveratrol, trans-resveratrol glucoside Phytostanols Campestanol Phytosterols Total ... differential use of phosphorus containing fertilisers or phosphorus content of the soil 22 Nutrient content of organically and conventionally produced foodstuffs • Relevance to health Phosphorus is ... meat at testing, Cut of meat, Mode of sampling Method of analysis, Which nutrients tested Method of testing, Mode of sampling, Method of analysis, Which nutrients tested, No of samples tested Age...
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Báo cáo khoa học: Analysis and biological relevance of advanced glycation end-products of DNA in eukaryotic cells ppt
... pH 8.0) and 10 lL of 922 phosphodiesterase EC 3.1.4.1 (Sigma-Aldrich, Munich, Germany; 0.008 U) were added and incubated for h at 37 °C Finally, the samples were incubated with alkaline phosphatase ... collected, lyophilized, and purified a second time with 100% water as eluent MS and NMR data identified the two products as the diastereomers of CEdG CEdGA and CEdGB were assigned randomly according ... DHA (1 m) were suspended in 30 mL of m sodium phosphate buffer (pH 7.4) and incubated at 70 °C in a shaking water bath dG dissolved at 70 °C during the course of the reaction After 24 h, the reaction...
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Báo cáo khoa học: Structural aspects and biological properties of the cathelicidin PMAP-36 pot
... (A) and of the truncated fragment PMAP-36(1– 20) (B) were recorded in mM phosphate buffer pH 7.0 without TFE (– –), and with 25% (–ÆÆ–ÆÆ–) and 50% (v/v) TFE Table shows the antimicrobial activity ... dimeric proform Considering the structure of the mature peptide, the C-terminal, hydrophobic tail seems to be essential for full potency and a wide spectrum of activity, while the role of dimerization ... (1999) Mechanism of the binding, insertion and destabilization of phospholipid bilayer membranes by alpha-helical antimicrobial and cell non-selective membrane-lytic peptides Biochim Biophys Acta 1462,...
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chemical and biological properties of food allergens
... collagenase, and other enzymes In the late phase of inflammation, lymphocytes and macrophages also take part in forming infiltrations and, as a result of vascular damage, symptoms of thrombosis and reduced ... compounds produced as a result of cellular membrane phospholipid catabolism induced by activated phophorylated phospholipase C They include inositol 1,4,5-triphosphate (IP3) and diacylglycerol (DAG) ... EAACI—European Academy of Allergology and Clinical Immunology EAR—early anaphylactic phase ECFA—eosinophil chemotactic factors of anaphylaxis ECP—eosinophil cationic protein EDN—eosinophil-derived neurotoxin...
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Three essays on the credit growth and banking structure of Central and Eastern European countries
... time in terms of profitability, efficiency, and liquidity ratios The sign and the significance level for a majority of micro and macro level variables change between the 1990s and the 2000s The ... financial needs of foreign owned banks In terms of profitability, the entrance of foreign banks increased the amount of competition in the CEE markets, and hence caused a decline in the profit margins ... the means and standard deviations of both the micro level and the macroeconomic variables of interest over time show indications of a structural break in the dataset across the 1990s and the 2000s...
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