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Results 401 - 450 of 603
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Chedekel M R - - 1992
Melanin isolated from the ink sac of cuttle fish (Sepia melanin) is a proposed standard for natural eumelanin. Sepia melanin isolated by a standard protocol was submitted for both elemental analysis and quantitative amino acid analysis. The contribution of the detected amino acids to the elemental composition is subtracted from ...
Hrelia S - - 1992
Using cultures of beating cardiomyocytes from neonatal rats, we have studied the fatty acid composition of phosphatidylinositol, phosphatidylinositol-4-phosphate and phosphatidylinositol-4,5-bisphosphate and the effect of supplementing the culture medium with docosahexaenoic acid on the fatty acid composition of the three phosphoinositides. Docosahexaenoic acid was incorporated into the phosphatidylinositol fraction of the ...
Szalewicz A - - 1992
1. Amino acid composition and immunological properties of the frog liver LMW AcPase forms: AcPase III and IV were examined. 2. AcPase III and IV show nearly identical amino acid composition and close immunological similarity. 3. These results indicate protein identity of both the enzyme forms and together with our ...
Ohkubo T - - 1992
To define the effects of physical activity on vascular fatty acid composition and prostanoid generation, spontaneously hypertensive and normotensive rats were made to swim at 34-35 degrees C for 5-7 wk. Fatty acids were determined by gas chromatography and prostanoids by high-performance liquid chromatography and electrochemical detection. A characteristic feature ...
Nkhumeleni F S - - 1992
Dentine of permanent mandibular incisors from nine individuals was hydrolysed and the amino acid composition determined by ion-exchange chromatography against a standard calibrant of 41 amino acids. Nineteen amino acids were detected, including small quantities of 1-methylhistidine and asparagine, two amino acids whose existence had apparently not been recorded before ...
Arulmozhi M - - 1992
Two germplasms of the tribal pulse, Mucuna monosperma Dc. ex Wight, viz., Thirunelly Reserve Forest, Wynaad District (Kerala) and Siruvani Reserve Forest, Coimbatore District (Tamilnadu), were analysed for proximate composition, total (true) seed proteins, seed protein fractionation, amino acid composition, fatty acids, minerals and anti-nutritional factors. Crude proteins, crude lipids, ...
Rykke M - - 1991
The adsorption of salivary proteins to dental enamel during pellicle formation has been shown to be a specific process and dependent on the chemical composition of the surfaces. Most studies on the amino acid composition of the acquired enamel pellicle have, however, been performed on the "2-h-pellicle" under controlled experimental ...
Gilmour R - - 1991
Cytochrome c' was identified in periplasmic extracts of the Paracoccus denitrificans strains LMD 22.21 and LMD 52.44. The cytochrome c' was purified from the latter using the device of sequential molecular exclusion chromatography in the dimeric and monomeric states. Although showing the overall spectroscopic features of the cytochrome c' family, ...
Gupta C - - 1991
Low cost weaning mixtures were prepared by mixing (i) malted pearl millet (Penicitum typhidium L), roasted amaranth (Amaranthus sp.); roasted green gram (Vigna radiata); jaggery and (ii) malted barley (Dehusked barley); roasted amaranth grain; roasted green gram; jaggery in proportion 60:20:40:45 wt/wt and were nutritionally evaluated. Both the blends had ...
Carballeira N M - - 1991
The novel fatty acids 18-methyl-5,9-icosadienoic acid [1] and 19-methyl-5,9-icosadienoic acid [2] were identified in the Caribbean sponge Erylus formosus. Other interesting fatty acids identified were the branched acids 3-methylpentadecanoic acid and 3-methylhexadecanoic acid, which are known to possess larvicidal activity. The most stable conformation of the new acid 19-methyl-5,9-icosadienoic acid ...
Qasim R - - 1991
The nutritive evaluation of seaweed proteins on the basis of amino acid composition has been reported in the present communication. Seventeen of the common amino acids including almost all essential amino acids have been detected in the protein hydrolysate of eighteen species of seaweeeds. Significant variations were observed in amino ...
del Moral A - - 1991
Changes in total cellular composition of some ions and amino acids of the moderate halophile Deleya halophila were studied in response to external salinity changes. Among the 14 amino acids investigated, the cellular glycine and aspartic acid content increased with increasing salinity. D. halophila also accumulated Na+ at the highest ...
Yonaha K - - 1991
Three hemorrhagic factors, HR1, HR2a and HR2b, of Okinawa habu venom were characterized in terms of their subunit structure, amino acid composition, metal content and immunological properties. HR1 is a dimer (mol. wt 90,000) consisting of two identical subunits at 25 degrees C, but polymerizes to form a tetramer at ...
Rajaram N - - 1991
Seeds of the tribal pulse, Mucuna gigantea, were analysed for proximate composition, total (true) seed proteins, seed protein fractionation, amino acid composition, minerals and antinutritional factors. Crude proteins, crude lipids, ash and nitrogen free extractives constituted 30.62%, 9.03%, 5.99% and 42.79%, respectively. The calorific values of 100 g dry matter ...
Gharbia S E - - 1990
Rapid identification of Fusobacterium spp. is hampered by their inability to ferment carbohydrates and the availability of relatively few useful phenotypic characters. In an attempt to identify new diagnostic markers for species, we reported recently the potential utility of glutamate dehydrogenase (GDH) electrophoretic mobilities for distinguishing eight species of Fusobacterium. ...
Sasaki Y - - 1990
Pollen mother cells of the lily (Lilium speciosum) were found to have a histone-H1-like protein (PMCP) not detected in other tissues. The PMCP appears from the late S-G(2) period of premeiosis and is present in mature pollen. PMCP and H1 were extracted from pollen mother cells with 5% perchloric acid ...
Engel M H - - 1990
A significant portion of prebiotic organic matter on the early Earth may have been introduced by carbonaceous asteroids and comets. The distribution and stable-isotope composition of individual organic compounds in carbonaceous meteorites, which are thought to be derived from asteroidal parent bodies, may therefore provide important information concerning mechanistic pathways ...
Jacobson T M - - 1990
Amino acid compositions of skin samples from young and old subjects and from age-matched donors with dry skin syndrome (xerosis) were examined. The amino acid contents of the free amino acid (FAA) fraction, soluble hydrolysate (SH) fraction, and whole cell hydrolysate (WCH) were determined. The greatest differences were observed between ...
Chou S P - - 1990
Twenty four strains representing eight species of gram positive yellow-pigmented rods (Oerskovia turbata, Oerskovia xanthineolytica, CDC Coryneform groups A-3, A-4, A-5, Listeria denitrificans, Corynebacterium aquaticum and Brevibacterium acetylicum) were divided into two major groups based on the relative amounts of 12 methyltetradecanoate (15:0a) obtained by capillary gas liquid chromatography. O. ...
Urakami T - - 1990
Two methylamine- and N,N-dimethylformamide-utilizing Paracoccus spp. are described. These bacteria are gram-negative, nonsporeforming, nonmotile, coccoid or short rod-shaped organisms. Their DNA base composition is 62 to 68 mol% G + C. Their cellular fatty acids include large amounts of C18:1 acid. Their major hydroxy acids are 3-OH C10:0 and 3-OH ...
Schiavon O - - 1990
A specific and direct method for the evaluation of monomethoxypolyethylene glycol (MPEG) in enzyme adducts has been developed. The method is based on extensive modification by trinitrobenzensulfonic acid (TNBS) of the MPEG-enzyme, to form an acid-stable TNBS adduct with the available amino groups of lysine and alpha-amino acid. The MPEG-modified ...
Jones A J - - 1990
The digital flexor tendons of the neonate and adult horse have been compared with respect to variation in extracellular matrix composition along their length. Two pepsin-sensitive, acetic acid soluble proteins, molecular weight (Mr) 52 kD (np 52) and Mr 54 kD (np 54), were prominent throughout the length of neonatal ...
Rykke M - - 1990
The formation of the acquired enamel pellicle is due to the adsorption of salivary proteins to the enamel surface. This adsorption is assumed to be specific and is dependent on the chemical characteristics of the surface. The aim of the present study was to investigate the consistency of the chemical ...
Okumura K - - 1990
Phosphoinositide hydrolysis is elicited by alpha-adrenoceptor stimulation in the myocardium, resulting in the generation of 1,2-diacylglycerol by the direct activation of phospholipase C. However, the physiological role of 1,2-diacylglycerol accumulation in the heart has been largely unexplored. Therefore, we studied the effects of norepinephrine on the accumulation of 1,2-diacylglycerol and ...
Lütz C - - 1990
Epicuticular wax structures and epicuticular wax composition were studied in needles of Picea abies (L.) Karst. plants after a long-term fumigation experiment. SEM observations showed aggregated as well as undamaged waxes without any relation to treatments. The chemical wax analysis revealed clone specific differences, but only one compound, the nonacosan-10-ol ...
Weibull J - - 1990
Comparisons were made between the free amino acid composition in leaf exudates and that in pure phloem sap, using twin samples taken from a single leaf of two oat (Avena sativa L.) and three barley (Hordeum vulgare L.) varieties. Leaf exudate was collected in a 5 mm EDTA-solution (pH 7.0) ...
Rushton D H - - 1990
Trichorrhexis nodosa is a common shaft defect affecting scalp hair. Two-hundred scalp hairs exhibiting trichorrhexis nodosa were obtained from two normal females; samples were prepared from proximal shaft, pre-nodule, nodule and post-nodule sections and analysed for their respective amino-acid compositions. Significant reductions in cystine (P less than 0.001) of the ...
Sicko-Goad L - - 1989
Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,2,4-trichlorobenzene. Response to this chlorinated benzene was monitored over a period of 5 days by quantitative ultrastructure and fatty acid percent composition. Over the time period examined, 41 significant morphological changes and 12 significant changes ...
Sicko-Goad L - - 1989
Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,2,3-trichlorobenzene. Response of the diatom was measured by quantitative ultrastructure and fatty acid percent composition over a 5-day period. During that time, 35 significant morphological and 12 fatty acid percent composition changes occurred. The most ...
Gupta H O - - 1989
Three maize varieties namely Vijay, SO/SN composite and Shakti, which differ in their nutritional quality and endosperm texture were processed to prepare semolina (sooji) and process-flour. The nutritional quality of these products was determined and compared with whole kernel flour of the respective variety. Distinct differences in milling and chemical ...
Sicko-Goad L - - 1989
Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,3,5-trichlorobenzene. Response of the diatom was measured by quantitative ultrastructure and fatty acid percent composition over a 5-day period. During that time, 28 significant morphological and 13 significant fatty acid percent composition changes occurred. Autophagic-like ...
Veys A - - 1989
A total of 430 strains of glucose-nonfermenting gram-negative bacteria representing 35 species were analyzed for their cellular fatty acid composition by gas-liquid chromatography (GLC). On the basis of qualitative differences in their cellular fatty acid composition, these bacteria could be divided into 19 distinct chromatographic groups. Eight Pseudomonas species, Achromobacter ...
Esteves M G - - 1989
The fatty acid composition during the transformation of Trypanosoma cruzi epimastigotes into metacyclic trypomastigotes (metacyclogenesis) was analysed by gas-liquid chromatography and mass spectrometry. Significant qualitative and quantitative changes in the fatty acid composition occurred during incubation of epimastigotes derived from LIT medium in the triatomine artificial urine (TAU). Metacyclogenesis was ...
Golubev W I - - 1989
The genus Nadsonia Sydow is revised on the basis of morphology, physiology, amino acid and fatty acid composition, electrophoretic patterns of some enzymes and DNA relatedness. Two species, N. commutata (type CBS 6640) and N. fulvescens, with two varieties, N. fulvescens var. fulvescens (type CBS 2596) and N. fulvescens var. ...
Frolov A F - - 1989
The fatty acid composition of lipopolysaccharides of the strains of Y. enterocolitica, Y. intermedia, Y. frederiksenii and Y. ruckeri studied during cultivation on meat-peptone agar is characterized by the predominance of 3-hydroxytetradecanoic and dodecanoic acids. Closely related to the mentioned bacteria is the strain of Y. kristensenii which is distinguished ...
Kivanç M - - 1989
Twenty samples of Erzincan (Savak) Tulum cheese were investigated for the microbiological quality and some chemical analyses. Cheese was characterized by moisture content means = 45.0%; 3.27% sodium chloride and 2.14% acidity. Significant variation was found in the major compositional factors indicating a general lack of quality and/or extreme diversity ...
Tarján E - - 1989
The elastin content and the amino acid composition of elastin in emphysematous and healthy control lung tissues were comparatively studied. Decreased lung elastin content was found in the emphysematous patients of both normal and reduced trypsin inhibitor activity compared to normal control subjects. In the emphysematous patients with reduced inhibitor ...
Moczar M - - 1989
Elastin synthesized in response to vascular injury was characterized in terms of its amino acid composition, the biosynthetic labeling of the desmosines and of the heat coacervable polypeptides present in the 2 M urea extract. Neointimal hyperplasia of the chronic variety was induced in rabbit aorta by superficial mechanical lesions. ...
Roher A E - - 1988
The paired helical filaments (PHFs) of Alzheimer's disease were purified by a strategy in which the neurons and amyloid plaque cores of protein (APCP) were initially isolated. This was achieved by several steps of isocratic sucrose centrifugations of increasing molarity and a discontinuous isotonic Percoll density gradient. After collagenase elimination ...
Epand R M - - 1988
The effect of mono-, di- and triacylglycerols on the bilayer to hexagonal phase (HII) transition was studied by differential scanning calorimetry and 31P-NMR spectroscopy. The acylglycerols were mixed with either dielaidoylphosphatidylethanoline or with 1-palmitoyl-2-oleoylphosphatidylethanolamine. Acylglycerols of lauric, oleic and stearic acids were utilized. All of the acylglycerols lowered the bilayer ...
Ertel K D - - 1988
Three batches of commercial magnesium stearate were characterized in terms of their fatty acid composition, moisture content, and specific surface area. None of these variables appeared to have any effect on the lubricant activity of the samples. The lubricant properties of the compound were further examined using three hydrates of ...
Müller F - - 1988
A case of superficial wound infection in a noncompromised host due to a Rhodococcus equi-like organism, acquired from soil, is described. The strain grew poorly at 37 degrees C and showed several differences from wild-type R. equi in biochemical tests and in its fatty acid and mycolic acid compositions.
Miyake H - - 1988
Human pure pancreatic juice (PPJ) and serum were analyzed for free fatty acids (FFAs) to study whether the damage to pancreatic cell membranes in pancreatitis is reflected as abnormal FFAs concentration and composition. Patients consisted of 13 normal controls, 7 patients with acute pancreatitis (AP) in remission, and 27 with ...
Prakash D - - 1988
Twenty-three seeds of different botanical families growing in India were analysed for their protein content and amino acid compositions. They showed a wide variation in their total protein (8.0 to 42.7%). Some of them were comparable and some were even better than popular food legumes such as kidney bean and ...
Rodriguez-Felix A - - 1988
The composition and quality of edible tender stems or cladodes of 3 Prickly Pear Cactus species (Opuntia amyclaea, O. ficus-indica, and O. inermis) were studied at different stages of development. This traditional Mexican vegetable is called "nopalitos" in Spanish and "cactus leaves" in English. Cladodes harvested when 20 cm in ...
Horie S - - 1987
Data on molecular weights, sedimentation coefficients, other molecular parameters and amino acids compositions of many hemoproteins were collected from the literature and studied. The results of the survey gave a general view of the molecular characteristics of hemoproteins and also revealed the presence of various statistical correlations among the molecular ...
Coté G G - - 1987
The fatty acid compositions of the phospholipids of Neurospora crassa mutants with altered periods were determined to test the possibility that some of these mutants might have altered membrane composition. In liquid shaker culture in constant light the bd (band) strain, which has a normal period (21.6 h), exhibited a ...
Streeter J G - - 1987
Nitrate supplied to legume plants inhibits the activity of nitrogenase in Rhizobium bacteroids in root nodules. The accumulation of amino N which is known to occur in Glycine max (L.) Merr. nodules as nitrogenase activity declines was studied in more detail by analysis of changes in free amino acid composition ...
Ejeta G - - 1987
The purpose of this study was to compare in vitro digestibility, protein distribution patterns, and amino acid composition of pearl millet with other major cereals. Digestibility values for the pearl millet varieties were higher than that of sorghum and comparable to that of maize. In contrast to sorghum, digestibility of ...
Xu C S - - 1987
Two forms of Thy-1 homologues of apparent mol. wt of 25,000 (designated BTp25) and 45,000 (designated BTp45) were isolated from bovine thymocyte membrane by solubilization, affinity chromatography with Con A, and preparative SDS-PAGE. Both forms reacted with a rabbit antiserum to murine Thy-1 in an enzyme-linked immunosorbent assay (ELISA). BTp45 ...
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