redox titration kmno4 and oxalic acid
ứng dụng chất kích kháng CuCl2 và Oxalic Acid
... 2.7: Hiệu quả kích kháng của oxalic acid lên tỉ lệ diện tích vết bệnh trên lá (%) ở các thời điểm 40, 50 và 60 NSKS 42 Hình 2.8: Hiệu quả kích kháng của oxalic acid lên tỉ lệ bệnh thối cổ bông ... 2.13: Hiệu quả kích kháng của oxalic acid lên tỉ lệ diện tích vết bệnh trên lá (%) ở các thời điểm 40, 50 và 60 NSKS 50 Hình 2.14: Hiệu quả kích kháng của oxalic acid lên tỉ lệ bệnh thối cổ bông ... 2001) và mô học (Huỳnh Minh Châu và ctv,2001). 6. Đặc tính oxalic acid và tác động của nó đối với cây trồng Tên hóa học: OXALIC ACID Công thửc hóa học: Thường tồn tại ở dạng ngm 2 phõn t...
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Tài liệu Báo cáo " Obtaining Essential Oil and Shikimic Acid from Star Anise Fruit (Illicium verum Hook) " ppt
... oil and shikimic acid from star anise fruits. With this method, obtaining yield of essential oil and shikimic acid respectively are 9.5% and 5.6% (essential oil content and shikimic acid ... Sciences and Technology 26 (2010) 110-113 113 for obtaining simultaneously essential oil and shikimic acid from star anise fruits. The yield of essential oil and shikimic acid were 9.5% and ... N0 1, N0 2 and N0 3 were shown at table 1 and table 2. Table 1. Obtaining simultaneously essential oil and shikimic acid from star anise fruits by methods N0 1, N0 2 and N0 3 Star...
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Tài liệu Báo cáo khóa học: Active-site residues and amino acid specificity of the bacterial 4¢-phosphopantothenoylcysteine synthetase CoaB pptx
... before as important step in the biosynthesis of thelantibiotics epidermin and mersacidin catalyzed by theLanD enzymes EpiD and MrsD, respectively [8–10]. Flavin-dependent oxidative decarboxylation ... N210K and copurication of the 4Â-phosphopantothenoyl-CMP intermediate. His-CoaB proteins(His-CoaB and His-CoaB N210K) were puri-fied from E. coli cell extracts by Ni-nitrilotri-acetic acid and ... Complementationanalysis suggested that the dfp-1 and dfp-707 mutationswere in the same gene [14]. The nutritional requirements ofthe dfp-707 and dfp-1 mutants correspond to those of panDmutants, however, dfp-mutants...
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Tài liệu Báo cáo khoa học: The SCO2299 gene from Streptomyces coelicolor A3(2) encodes a bifunctional enzyme consisting of an RNase H domain and an acid phosphatase domain pdf
... RNaseH domain and an APase domain. The RNase H and APase activities of the full length SCO2299 proteindepend on its N-terminal RNase H domain and C-ter-minal APase domain, respectively, and do not ... plates containing 50 lgặ mL)1ampicillin and 30 lgặmL)1chloramphenicol, and incubatedat 30 °C and 42 °C.Plasmid constructions, overproductions and purificationsPlasmids for overexpression ... Science and Technol-ogy, Grant-in-Aid for the 21st Century Center ofExcellence (COE) Program entitled ‘Understanding and Control of Life’s Function via Systems Biology(Keio University)’ and a...
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Tài liệu Báo cáo Y học: The b-1,4-endogalactanase A gene from Aspergillus niger is specifically induced on arabinose and galacturonic acid and plays an important role in the degradation of pectic hairy regions pdf
... amino acid sequence of GALA revealed veryhigh similarity to the endogalactanases of A. tubingensis(95.7% amino acid sequence identity) and A. aculeatus(78.9% amino acid sequence identity) and ... minD-galactose,D-galactobiose and D-galactotetraose were used as standards to identify theD-galactose and D-galacto-oligosaccharides. The calculatedareas forD-galactose and D-galacto-oligosaccharides ... endogalactanases (between 21% and 28%amino acid sequence identity). This is illustrated by aCLUSTALW analysis [29] of the deduced amino acid sequences of GALA and b-1,4-endogalactanases ofAspergillus...
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Tài liệu Báo cáo Y học: Bivalent cations and amino-acid composition contribute to the thermostability of Bacillus licheniformis xylose isomerase doc
... unchargedpolar amino acids (i.e. Q, N, S, and T) and an increase incharged amino -acid residues (i.e. K, E, and R) inhyperthermophilic proteins. As S and T can catalyze thedeamination and backbone ... The amounts of fructose and xylulose produced weredetermined using the cysteine/carbazole/sulfuric acid method. Absorbance was measured at 537 nm and 560 nmfor xylulose and fructose, respectively. ... 0.981, is based on theelution data of the 200, 150, and 66 kDa protein standards. Linearregressions (1) and (2) give molecular masses of 200 and 177.5 kDa,respectively, for BLXI.6294 C. Vieille...
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Applications of Calorimetry in a Wide Context - Differential Scanning Calorimetry, Isothermal Titration Calorimetry and Microcalorimetry docx
... for both Fe and Fe50Co50 powders (Fig. 4). A linear fit gives slopes of 0.65 and –0.20 for short and extended milling times, respectively, in the case of Fe; and slopes of –0.85 and –0.03, ... Magnetic and hyperfine characterizations were studied by vibrating sample magnetometer and Mössbauer spectrometry, respectively. 6. Fe and FeCo-based alloys 6.1. Fe and Fe-Co powders Fe and Fe50Co50 ... end groups on poly(lactic acid) stability The intramolecular transesterification with the formation of cyclic oligomers and by-products like acrylic acid, carbon oxide and acetaldehyde is considered...
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Báo cáo khoa học: Involvement of NF-jB subunit p65 and retinoic acid receptors, RARa and RXRa, in transcriptional regulation of the human GnRH II gene pot
... Differential effects of ligand-activated RARa and RXRa onthe promoter activity of the hGnRH II gene in TE671 and JEG-3cells. In vivo effect of RARa and RXRa with their ligands, ATRA and 9-cisRA, on the ... TE671medulloblastoma and JEG-3 placenta choriocarcinoma cells. Supershift and chromatin immunoprecipitation assays showed in vitro and in vivobinding of NF-jB subunit p65 and the retinoic acid receptors, RARa and RXRa, ... PCR.Treatment of cells with the RARa ⁄ RXRa ligands, all-trans retinoic acid and 9-cis-retinoic acid, reduced and increased GnRH II gene expression inTE671 and JEG-3 cells, respectively. Taken together,...
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Báo cáo Y học: Amino acids 3–13 and amino acids in and flanking the 23FxxLF27 motif modulate the interaction between the N-terminal and ligand-binding domain of the androgen receptor pdf
... AR.NTDwt and mutants withGST-AR.LBD (see also legend to Fig. 3).Ó FEBS 2002 Interaction between androgen receptor subdomains (Eur. J. Biochem. 269) 5787 Amino acids 3–13 and amino acids in and ... the Netherlands;2Department ofReproduction and Development, Erasmus Medical Center, Rotterdam, the NetherlandsThe N-terminal domain (NTD) and the ligand-bindingdomain (LBD) of the androgen ... amino acids 23, 26 and 27 completely abolishedinteraction with GalDBD-AR.LBD and alanines at posi-tions 24 and 25 increased the interaction capacity. Allalanine substitutions of amino acids...
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Báo cáo khoa học: Structural characterization of N-linked oligosaccharides of laminin from rat kidney: changes during diabetes and modulation by dietary fiber and butyric acid pdf
... neutral sugars like mannose and galactose and amino sugar as N-acetylglucos-amine, along with sialic acid which accounted for 22 and 35% of total carbohydrate content in SFC and SFD groups, respectively.Purification ... into SFC and FFC, SFD, FFD and FFD-500 groups. SFC and SFD groups received AIN-76basal diet, whereas FFC and FFD groups received AIN-76diet, wherein starch was replaced with 5% wheat bran and 2.5% ... of experimental period and, as expected,showed increased urine output, excretion of sugar and increase in glomerular filtration rate. Feeding dietaryfiber and butyric acid resulted in the amelioration...
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Báo cáo khoa học: Characterization of surface n -alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills pot
... and octadecanoic acid (18 : 0), and also very long-chain n-alkanes C22–C34.Dehydroabietic acid was found in both lichen and mycobi-ont. The occurrence of different amounts of n-alkanes and fatty ... hexane-1,6-dioic acid, dimethyl ester; 2, tetradecanoic acid, methyl ester; 3, hexadecanoic acid, methyl ester;4, octadecanoic acid, methyl ester; 5, dehydroabietic acid, methyl ester.Ó FEBS 2003 Alkanes and ... mycobiont) and a green alga or a cyanobacte-rium (termed the photobiont). These organisms have bothalgal and fungal properties [1,2] and produce n-alkane,unusual betaine ether glycerolipids [3,4], and...
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Báo cáo khoa học: Glycan profiling of urine, amniotic fluid and ascitic fluid from galactosialidosis patients reveals novel oligosaccharides with reducing end hexose and aldohexonic acid residues ppt
... theexception of U4 (Table 3). In U1, U6 and U7, gluconic acid (o1) has high abundance, and high levels of C1-oxi-dized lactose (o2) were observed in urine samples U2,U5 and U6.DiscussionUsing a prototype ... Neu5Ac and the adjacenthexose. No relevant ring fragments were observedbetween C2 and C3, which is consistent with a 1–3linkage between Hex and HexNAc. The ring fragmentions0,2A4 and 2,4A4, ... fragmentions0,2A4 and 2,4A4, and the lack of0,3A4, are indica-tive of a 1–4 linkage between HexNAc and the adja-cent hexose. The ring fragment ions0,2A5,0,2A5-18 and 2,4A5, and the lack of0,3A5,...
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Báo cáo khoa học: Binding of hemolin to bacterial lipopolysaccharide and lipoteichoic acid An immunoglobulin superfamily member from insects as a pattern-recognition receptor doc
... the O-antigen and p arts of the i nner-core and outer-core p olysaccharide, and lipid A alone could also p artially compete f or hemolinbinding to smooth LPS. Rough mutants Rd and Re,containing ... suggesting that LPS and LTAbindtothesamesitesonhemolinandthathemolinmay have a higher affinity for LTA. Hemolin was alsoobserved to bind d irectly to i mmobilized LTA (Fig. 10).LPS and LTA are s ... micro-organis ms.We showed that hemolin binds to the surface of Gram-negative and Gram-positive bacteria and yeast, and caused aggregation of these micro-organisms. Bindingof hemolin to the surface...
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