ZfN: Search Results

Browse byFacets

Bookbag ( 0 )

'Isolation' in keywords

Results 11 Items

1	Author	GeorgeP. Demagos, Wolfgang Baltus, Gerhard Höfle	Requires cookie*
	Title	New Anthraquinone8 and Anthraquinone Glycosides from Morinda lucida
	Abstract	From the trank heartwood of Morinda lucida four new anthraquinones, 3-hydroxy-anthraquinone-2-carbaldehyde, morindone-5-methyl ether, munjistin methyl ester, damna-canthol-cu-methyl ether and two glycosides, soranjidiol 6-0-/?-primveroside and lucidin 3-0-ß-primveroside were isolated and identified by spectroscopic and chemical methods.
	Reference	Z. Naturforsch. 36b, 1180—1184 (1981); received May 20 1981
	Published	1981
	Keywords	Morinda lucida, Rubiaceae, Anthraquinones, Isolation
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/36/ZNB-1981-36b-1180.pdf
	Identifier	ZNB-1981-36b-1180
	Volume	36

2	Author	T. V. Rao, U. C. Biswal	Requires cookie*
	Title	Isolation and Respiratory A ssay o f Earthworm Body W all M itochondria
	Abstract	Out o f several media tested, KC1 m edium contain ing BSA was found to be most suitable for isolation o f functionally efficient mitochondria from earthworms. Respiration and oxidative phosphorylation in isolated mitochondria are demonstrated in the presence o f cyto chrome c and BSA in reaction medium. Introduction — The details o f the respiratory m etabolism in earthworm are yet to be established. There are only a few contradictory reports on the nature o f its respiratory enzyme components [1], W hile, cytochrome oxidase, suc-cinoxidase, succinate dehydrogenase were identified in earthworm tissue homogenates, the presence o f Kreb's cycle enzymes could not be demonstrated. Very little information is available on earthworm m itochondria except one report where it is isolated in 0.44 M m annitol [2]. Mitochondria from invertebrates like insects and crustaceans are isolated and characterized [3, 4]. But such methods cannot be extended to earthworms as it is known that conditions for isolation and assay o f m itochondria are highly system specific [5].
	Reference	Z. Naturforsch. 39c, 853 (1984); received January 23 1984
	Published	1984
	Keywords	Earthworm Mitochondria, Isolation, Respiratory Assay, Metabolism, Oxidative Phosphorylation
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/39/ZNC-1984-39c-0853_n.pdf
	Identifier	ZNC-1984-39c-0853_n
	Volume	39

3	Author	Ingrid Gilles, Hans-Gerd Löffler, Friedhelm Schneider	Requires cookie*
	Title	Ein neues Isolierungsverfahren für Schweinenierenacylase. Kinetik des Co2+, M n2+, N i2+ und Cd2+-enzyms A New Isolation Procedure for Acylamino Acid Amidohydrolase. Kinetics of the Co2+, M n2+, N i2+ and C d2+ Enzyme
	Abstract	A new procedure for the isolation o f highly purified acylamino acid amidohydrolase from hog kidney is d e scribed which allows the preparation o f the enzym e with a recovery o f about 45%, a 200 fold purification and a spec.activity o f 3 5 0 -5 0 0 U. The essential Zn2+ o f the enzyme was exchanged for Co2+, N i2+, M n2+ and C d2+, and the kinetic parameters K M, kCdl and kCät/ K M o f the different enzyme species for a series o f acetyl-L-amino acids were determined.
	Reference	Z. Naturforsch. 39c, 1017 (1984); received June 18/July 13 1984
	Published	1984
	Keywords	Acylamino Acid Amidohydrolase, Isolation, Metall Ion Exchange, Kinetics
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/39/ZNC-1984-39c-1017_n.pdf
	Identifier	ZNC-1984-39c-1017_n
	Volume	39

4	Author	Manfred Wiegand, Karl Eisele	Requires cookie*
	Title	Isolation and Characterization of the Androgen Receptor of Murine Preputial Gland
	Abstract	The androgen receptor of murine preputial gland showed in binding experiments a biphasic saturation curve and a biphasic Scatchard plot. The receptor converted from an 8.5-9 S form to a 4.5—5 S form in high ionic strength buffer. The apparent dissociation constant was K D 0.5 ± 0.2 nM for the 8.5—9 S receptor form. A 6.5—7 S receptor form could be detected in some experiments. The ligand specificity was evaluated by competition experiments: testosterone > androstene-dione > dihydrotestosterone > androstanediol > estradiol > progesterone > dexamethasone. The receptor of murine preputial gland was less stable than the androgen receptor of skeletal muscle of the same mice.
	Reference	Z. Naturforsch. 43c, 117—125 (1988); received September 25 1987
	Published	1988
	Keywords	Murine Preputial Gland, Androgen Receptor, Isolation, Characterization
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/43/ZNC-1988-43c-0117.pdf
	Identifier	ZNC-1988-43c-0117
	Volume	43

5	Author	W. Hülsen, D. Kubin	Requires cookie*
	Title	Isolierung und Eigenschaften der Zellhiille der Griinalge C h lo re lla f u s c a Isolation and Properties of the Cell Envelope of the Green Alga Chlorella fusca
	Abstract	C hlorella cell envelopes were isolated by a mechanical procedure. The obtained morphological structure shown in an EM-picture has a mean density of .0 = 1.42. A charac teristic chemical property of the envelope is the percentage of mono-and di-unsaturated Cjg-fatty acids which is con siderably higher than that of intact cells. With 14C labelled sugars a selectivity of the hexose uptake could be shown, galactose uptake amounting only to about one fifth that of glucose and mannose. The uptake shows a temperature maximum. Part of the 14C registered after a 30 min uptake peroid is released by high concentration of unlabelled glu cose, 20% are irreversibly fixed.
	Reference	(Z. Naturforsch. 30c, 684 [1975]; eingegangen am 25. Juni 1975)
	Published	1975
	Keywords	C hlorella, Cell Envelope, Isolation, Hexose Uptake, Fatty Acid Composition
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/30/ZNC-1975-30c-0684_n.pdf
	Identifier	ZNC-1975-30c-0684_n
	Volume	30

6	Author	W. Ilfried Brandi, KarlH. Errm An, LutzG. Rotjahn	Requires cookie*
	Title	Hydroxycinnamoyl Esters of Malic Acid in Small Radish {Raphanus sativus L. var. sativus)
	Abstract	The esters o f /?-coumaric, ferulic and caffeic acid with m alic acid were isolated from leaves, the ester o f sinapic acid with m alic acid from cotyledons o f Raphanus sativus plants via prepara tive HPLC. The esters were identified by hydrolyses and follow ing capillary G C , by H -N M R and FAB-MS. Their concentrations in leaves and tubers were determ ined by gradient HPLC on reversed phase material.
	Reference	Z. Naturforsch. 39c, 515 (1984); received March 6 1984
	Published	1984
	Keywords	Hydroxycinnamoylmalic Acids, Isolation, Identification, Q uantitative D eterm ination, Raphanus sativus
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/39/ZNC-1984-39c-0515.pdf
	Identifier	ZNC-1984-39c-0515
	Volume	39

7	Author	M. Ax Schönfelder, Ute Janott, Roland Frötschl, Karl-W Olfgang, M. Undry, G. Ünter, Adam	Requires cookie*
	Title	Purification of Antiviral Proteins with Ribosome-Inactivating Properties from Plants
	Abstract	A generally applicable highly effective purification method for antiviral plant proteins, selective for those with ribosome-inactivating properties, was developed. It involved affinity chromatography on Cibacron Blue Sepharose of the extracted plant sap after acid-ethanol precipitation and finally cation exchange chromatography on Mono S (Pharmacia). After the second chromatography step electrophoretically pure proteins from the four plant species, Chenopodium amaranticolor, Dianthus barbatus, Phytolacca americana and Spinacia oleracea, were obtained. These proteins inhibited infection of test plants with alfalfa mosaic virus and in vitro translation of TMV-RNA. The apparent molecular weights of the purified proteins were determined by SDS polyacrylamide gel electrophoresis as: 29 kDa for C. amaranticolor, 33 kDa for D. barbatus, 29 kDa for P. americana and 36 kDa for S. oleracea. Comparisons of the proteins by indirect ELISA and by Western blotting with polyclonal antisera from rabbits revealed that all four proteins were serologically related but not identical. In addition all four proteins were found to be glycosylated.
	Reference	Z. Naturforsch. 47c, 731—738 (1992); received June 9/August 19 1992
	Published	1992
	Keywords	Antiviral Activity, Ribosome-Inactivating Proteins, Isolation, Serological Comparison, Glycosylation
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/47/ZNC-1992-47c-0731.pdf
	Identifier	ZNC-1992-47c-0731
	Volume	47

8	Author	P. V. Monje3, E. J. Baranb	Requires cookie*
	Title	On the Formation of Whewellite in the Cactaceae Species Opuntia microdasys
	Reference	Z. Naturforsch. 52c, 267—269 (1997); received January 20 1997
	Published	1997
	Keywords	Cactaceae, Opuntia microdasys, Whewellite, Isolation, Electron Microscopy, Infrared Spectrum
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/52/ZNC-1997-52c-0267_n.pdf
	Identifier	ZNC-1997-52c-0267_n
	Volume	52

9	Author	RichardP. Kreher, Gerald Dyker, WilhelmP. Neumann	Requires cookie*
	Title	Structure and Reactivity of Isoannelated Heterocyclic Systems with Ann-and (4n+2)jr-Electrons, XII [1] 2-terr-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indoles: Tricyclic Hetarenes with Isoannelated Pyrrole Rings
	Reference	Z. Naturforsch. 42b, 473—477 (1987); eingegangen am 14. November 1986
	Published	1987
	Keywords	Substituted 2, 3-Dihydropyrrolo[3, 4-b]indoles, Synthesis, Isolation, Spectroscopic Properties, Cycloaddition Reactions
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/42/ZNB-1987-42b-0473.pdf
	Identifier	ZNB-1987-42b-0473
	Volume	42

10	Author	RichardP. Kreher, Thomas Hildebrand	Requires cookie*
	Title	Structure and Reactivity of Isoannellated Heterocyclic Systems with 4nji-and (4/7+2);r-Electrons, XIV [1] Tri-and Tetracyclic Hetarenes with Localized or Delocalized Pyrrole Units
	Abstract	2,7-Di-/er/-butyl-2,7-dihydro-benzo[ 1,2-c:3,4-c']dipyrrole (2b) and 2,5,8-Tri-rm-butyl-5.8-di-hydro-2H-benzo[l,2-c:3,4-c':5,6-c"]tripyrrole (3b) have been prepared by acetolysis of the cor-responding tri-and tetracyclic N-oxides, isolated in crystallinic form and characterized by spec-troscopic data. The scope of the N-oxide route is documented and the existence of benzo-annellated pyrroles is proofed. The stabilizing effect of the tert-butyl group is presumably sup-ported by the vicinal annellated heterocycles.
	Reference	(Z. Naturforsch. 43b, 125—131 [1988]; eingegangen am 15. September 1987)
	Published	1988
	Keywords	Benzo-annellated Di-and Tripyrroles, Synthesis, Isolation, Spectroscopic Properties, Cycloaddition Reactions
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/43/ZNB-1988-43b-0125.pdf
	Identifier	ZNB-1988-43b-0125
	Volume	43

11	Author	Susanne Valcic3, Gloria Montenegro15, Ana-Maria Mujicab, Guacolda Avilab, Scott Franzblauc, MayaP. Singhd, WilliamM. Maiesed, BarbaraN. Timmermann3	Requires cookie*
	Title	Phytochemical, Morphological, and Biological Investigations of Propolis from Central Chile
	Abstract	Propolis from Central Chile was investigated for its plant origin by microscopical analysis of pollen grains and leaf fragments found in the sample. The pollen grains that appear with significant higher frequency in the sample corresponded to four native and two introduced species, whereas leaf fragments corresponded to four native species. Seventeen phenolic com pounds that belong to the phenylpropane, benzaldehyde, dihydrobenzofuran, or benzopyran classes, were isolated from an organic extract that was found to have a moderate growth inhibitory activity against M ycobacterium avium , M. tuberculosis, and two strains of S taphylo coccus aureus. The components responsible for activity were determined.
	Reference	Z. Naturforsch. 54c, 406 (1999); received October 29 1998/February 15 1999
	Published	1999
	Keywords	Propolis, Central Chile, Microscopical Analysis, Isolation, Phenylpropanes, Dihydrobenzofurans, Benzopyrans, Antimicrobial Activity
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_C/54/ZNC-1999-54c-0406.pdf
	Identifier	ZNC-1999-54c-0406
	Volume	54