methyl alcohol and formic acid
Tài liệu Báo cáo " Obtaining Essential Oil and Shikimic Acid from Star Anise Fruit (Illicium verum Hook) " ppt
Ngày tải lên :
12/02/2014, 17:20
... 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 ... N
0
1, N
0
2 and N
0
3 were shown at
table 1 and table 2.
Table 1. Obtaining simultaneously essential oil and shikimic acid
from star anise fruits by methods N
0
1, N
0
2 and N
0
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
Ngày tải lên :
19/02/2014, 12:20
... before as important step in the biosynthesis of the
lantibiotics epidermin and mersacidin catalyzed by the
LanD enzymes EpiD and MrsD, respectively [8–10]. Flavin-
dependent oxidative decarboxylation ... N210K and
copurification of the 4¢-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 ... Complementation
analysis suggested that the dfp-1 and dfp-707 mutations
were in the same gene [14]. The nutritional requirements of
the dfp-707 and dfp-1 mutants correspond to those of panD
mutants, 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
Ngày tải lên :
19/02/2014, 18:20
... RNase
H domain and an APase domain. The RNase H and
APase activities of the full length SCO2299 protein
depend on its N-terminal RNase H domain and C-ter-
minal APase domain, respectively, and do not ... plates containing 50 lgÆ mL
)1
ampicillin and 30 lgÆmL
)1
chloramphenicol, and incubated
at 30 °C and 42 °C.
Plasmid constructions, overproductions and
purifications
Plasmids for overexpression ... nucleotide, 1 mm dimethylbenzimi-
dazole, 200 lm PIPES as an internal standard, and 2 lgof
protein samples in a final volume of 100 lL. The reaction
mixture was incubated for 10 min at 37 °C and transferred
to...
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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
Ngày tải lên :
21/02/2014, 01:21
... amino acid sequence of GALA revealed very
high similarity to the endogalactanases of A. tubingensis
(95.7% amino acid sequence identity) and A. aculeatus
(78.9% amino acid sequence identity) and ... min
D
-galactose,
D
-galactobiose and
D
-galactotetraose were used as standards to identify the
D
-galactose and
D
-galacto-oligosaccharides. The calculated
areas for
D
-galactose and
D
-galacto-oligosaccharides ... endogalactanases (between 21% and 28%
amino acid sequence identity). This is illustrated by a
CLUSTALW analysis [29] of the deduced amino acid
sequences of GALA and b-1,4-endogalactanases of
Aspergillus...
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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
Ngày tải lên :
22/02/2014, 07:20
... uncharged
polar amino acids (i.e. Q, N, S, and T) and an increase in
charged amino -acid residues (i.e. K, E, and R) in
hyperthermophilic proteins. As S and T can catalyze the
deamination and backbone ... The amounts of fructose and xylulose produced were
determined using the cysteine/carbazole/sulfuric acid
method. Absorbance was measured at 537 nm and 560 nm
for xylulose and fructose, respectively. ... 0.981, is based on the
elution data of the 200, 150, and 66 kDa protein standards. Linear
regressions (1) and (2) give molecular masses of 200 and 177.5 kDa,
respectively, for BLXI.
6294 C. Vieille...
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Alcohol and you - Nghiên cứu tác động của rượu và cách phòng tránh
Ngày tải lên :
28/02/2014, 23:43
... of alcohol
you drink and also the pattern of your drinking. The pattern of your
drinking is made up of the times when you drink alcohol and the times
when you do not, and who you drink alcohol ... grain, and vodka from potatoes.
Depending on what they are made from, and how they are made,
different drinks have different amounts of alcohol in them. Beer and cider
can be 2% to 7% alcohol; ... 15%; and spirits, like whiskey
and vodka, are often 40% alcohol. These percentages are Alcohol By
Volume’. On bottles you may see this shortened to ‘ABV’ next to the
percentage number.
Alcohol...
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Applied Physiology Including the Effects of Alcohol and Narcotics potx
Ngày tải lên :
15/03/2014, 20:20
... to alcohol and a gas. The gas bubbles through the bread and makes it light. When bread is baked, the
heat of the oven drives off the alcohol, and so we do not eat any in bread.
=64. Alcohol. = Alcohol ... the yeast plants and then the juice will keep without change.
5. Alcohol looks like water. It has a sharp and burning taste.
6. Alcohol takes water from flesh and hardens it.
7. Alcohol burns with ... these go back to the blood and are
carried to the skin and kidneys.
[Illustration: =The skin (×100).=
a, b and c epidermis. d and g tough and thick part of skin. e sweat gland. f blood tubes. h fat...
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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
Ngày tải lên :
16/03/2014, 10:20
... Differential effects of ligand-activated RARa and RXRa on
the promoter activity of the hGnRH II gene in TE671 and JEG-3
cells. In vivo effect of RARa and RXRa with their ligands, ATRA
and 9-cisRA, on the ... TE671
medulloblastoma and JEG-3 placenta choriocarcinoma cells. Supershift
and chromatin immunoprecipitation assays showed in vitro and in vivo
binding 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 in
TE671 and JEG-3 cells, respectively. Taken together,...
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Báo cáo khoa học: High and complementary expression patterns of alcohol and aldehyde dehydrogenases in the gastrointestinal tract Implications for Parkinson’s disease docx
Ngày tải lên :
16/03/2014, 11:20
... expression of
the Adh1, Adh3, Adh4 and Aldh1 genes in the GI tract
of rats and mice is summarized in Fig. 1 and Table 2.
Figures 2 and 3 document key findings and Fig. 4
documents probe controls. ... mice and rats, Adh4 is transcribed in the epithelium
of tongue, esophagus and stomach, whereas Adh1 was active from stomach
to rectum in mice, and in duodenum, colon and rectum in rats. Adh1 and
Adh4 ... Expression patterns of class I and
class IV alcohol dehydrogenase genes in developing
epithelia suggest a role for alcohol dehydrogenase in
local retinoic acid synthesis. Alcohol Clin Exp Res 20,
1050–1064.
32...
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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
Ngày tải lên :
17/03/2014, 10:20
... AR.NTDwt and mutants with
GST-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 flanking ... the Netherlands;
2
Department of
Reproduction and Development, Erasmus Medical Center, Rotterdam, the Netherlands
The N-terminal domain (NTD) and the ligand-binding
domain (LBD) of the androgen ... amino acids 23, 26 and 27 completely abolished
interaction with GalDBD-AR.LBD and alanines at posi-
tions 24 and 25 increased the interaction capacity. All
alanine 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
Ngày tải lên :
22/03/2014, 17:20
... 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-76
basal diet, whereas FFC and FFD groups received AIN-76
diet, 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 dietary
fiber 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
Ngày tải lên :
23/03/2014, 17:21
... 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 ... and octadecanoic acid
(18 : 0), and also very long-chain n-alkanes C
22
–C
34
.
Dehydroabietic acid was found in both lichen and mycobi-
ont. The occurrence of different amounts of n-alkanes and
fatty ... mycobiont) and a green alga or a cyanobacte-
rium (termed the photobiont). These organisms have both
algal 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
Ngày tải lên :
29/03/2014, 09:20
... the
exception of U4 (Table 3). In U1, U6 and U7, gluconic
acid (o1) has high abundance, and high levels of C
1
-oxi-
dized lactose (o2) were observed in urine samples U2,
U5 and U6.
Discussion
Using a prototype ... Neu5Ac and the adjacent
hexose. No relevant ring fragments were observed
between C
2
and C
3
, which is consistent with a 1–3
linkage between Hex and HexNAc. The ring fragment
ions
0,2
A
4
and
2,4
A
4
, ... fragment
ions
0,2
A
4
and
2,4
A
4
, and the lack of
0,3
A
4
, are indica-
tive of a 1–4 linkage between HexNAc and the adja-
cent hexose. The ring fragment ions
0,2
A
5
,
0,2
A
5
-18
and
2,4
A
5
, and the lack of
0,3
A
5
,...
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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
Ngày tải lên :
31/03/2014, 09:20
... 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 hemolin
binding to smooth LPS. Rough mutants Rd and Re,
containing ... suggesting that LPS and
LTAbindtothesamesitesonhemolinandthathemolin
may have a higher affinity for LTA. Hemolin was also
observed 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. Binding
of hemolin to the surface...
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