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  • Blackwell Publishing Ltd  (343)
  • Society of Exploration Geophysicists (SEG)
  • 1980-1984  (343)
  • 1980  (343)
  • 1
    Electronic Resource
    Electronic Resource
    SOLUBILITY AND IN VITRO DIGESTIBILITY OF SOY FLOURS, CONCENTRATES, AND ISOLATES (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The nitrogen solubility of soy products was determined in water, phosphate buffer, and buffer with urea and/or mercaptoethanol. The water solubilities in decreasing order were: minimally heat processed flours, isolates, heat processed flour, and concentrates. Heat treatment of soy flours increased hydrogen, hydrophobic, and disulfide bonds. The insolubility of isolates and concentrates was due mostly to hydrophobic and hydrogen bonding. The in vitro digestibilities in decreasing order were: isolates, concentrates, heat processed flour, and minimally heat processed flours. PER decreased as disulfide bonding increased except in minimally heat-treated flours. For products with little or no inaccessible disulfide bonding, digestibility increased as hydrogen and hydrophobic bonding increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07481.x
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  • 2
    Electronic Resource
    Electronic Resource
    CADMIUM AND LEAD CONTENT OF SOYBEAN PRODUCTS (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Soybeans grown on sludge-amended soil high in cadmium content were analyzed for cadmium and lead, then fractionated to simulate industrial food processing. Of these fractions, oil retained the least cadmium, which accumulated in the protein-enriched fractions. Protein products prepared in the laboratory by simulated industrial processes showed no practical differences in cadmium levels. Commercial soybean products for human consumption obtained from manufacturers and markets showed no elevated cadmium levels. Lead levels were high in isolated instances, presumably from contamination during processing. Cadmium in high-cadmium soybeans is retained by protein products consumed by humans; increased cadmium application to soils may be hazardous to humans. However, soybean products presently being marketed do not contain excessive cadmium or lead.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb06517.x
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  • 3
    Electronic Resource
    Electronic Resource
    Aerial Sorocarp Development By the Aggregative Ciliate, Sorogena Stoianovitchae (1980)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 27 (1980), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Sorogena stoianovitchae Bradbury & Olive, an epiphytic ciliate found in various parts of the world, has a trophic stage that feeds on members of the ciliate genus Colpoda. When grown in the presence of the food ciliate, it multiplies rapidly. When the cells become abundant they aggregate at the water surface on inserted plant fragments or floating pollen grains, the sides of culture dishes, or on floating films such as those deposited by bacteria or pollen grains. an aggregate mounds up and becomes ensheathed above the water level, after which the mass of cells called a sorogen rises aerially at the apex of a stalk deposited at its base. the tapering, noncellular stalk consists of a conspicuously furrowed sheath that encloses a mucilaginous matrix. At completion of stalk development the cells of the sorogen become encysted. the sorocysts are commonly discharged by fracturing of the drying sorus. Alternating light and dark conditions are required for sorocarp development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1980.tb04260.x
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  • 4
    Electronic Resource
    Electronic Resource
    Comparison of the Surface Proteins and Glycoproteins On Erythrocytes of Calves Before and During Infection With Babesia Bovis (1980)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 27 (1980), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The surface proteins and glycoproteins on red cells from normal and Babesia bovis-infected calf blood have been compared. Several radiolabeling probes were used to label specifically external membrane molecules which were then separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and identified by autoradiography or fluorography. No differences were observed among the Coomassie Blue-stained membrane proteins of erythrocytes from individual uninfected calves. Comparison of red cells from these animals also indicated no qualitative differences in the surface proteins with accessible tyrosyl residues labeled by lactoperoxidase-catalyzed radioiodnation, although some quantitative variation in the uptake of radioactivity into particular proteins was observed. the major radioiodinated bands on normal bovine erythrocytes had Mr of 165, 130, 90, and 45 kiloDaltons. However, labeling of surface glycoproteins by the periodate/[3H]NaBH4 and galactose oxidase (± neuraminidase)/[3H]NaBH4 methods showed significant differences in the surface proteins of red cells from individual uninfected calves. of 14 animals tested, 5 had major labeled glycoproteins of unique Mr. No changes were observed in radioiodinated surface proteins of total red cell samples from infected calves with 0.5-6% parasitemia. Radioiodination of concentrated infected red cells from the same samples (concentrated by selective hypotonic lysis of uninfected erythrocytes in KC1) resulted in the labeling of 3 new surface proteins, with Mr of 118, 115, and 60 kiloDaltons. the same new 125I-labeled bands were identified on infected cells from 3 avirulent strains of B. bovis used in vaccine production. Furthermore, in concentrated infected cells there was very poor radiolabeling of major bands strongly labeled on uninfected cells (Mr 165, 130, and 90 kiloDaltons), suggesting parasite-induced loss of these proteins. Although there were some differences in 3H-labeled surface glycoproteins of red cells from normal and. B. bovis -infected blood, they were restricted to minor labeled bands and were not seen consistently. the labeled surface glycoproteins of concentrated infected cells were very similar to those of the uninfected red blood cells from infected blood.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1980.tb04690.x
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  • 5
    Electronic Resource
    Electronic Resource
    Isozymic Characterization of Three Mating Groups of the Tetrahymena pyriformis complex (1980)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 27 (1980), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Strains of 3 unnamed mating groups of the Tetrahymena pyriformis complex have been subjected to starch gel electrophoresis followed by staining the gels for the enzymes isocitrate dehydrogenase (NADP), tyrosine aminotransferase, and tetrazolium oxidase (superoxide dismutase). With respect to the electrophoretic mobilities of these enzyme systems, the mating groups referred to here as 5, 13 and 14 are very similar to Tetrahymena americanis (syngen 2), the most common North American species of the complex.Cultures in our collection labeled Tetrahymena cosmopolitans (formerly syngen 4) are either amicronucleate, with unique isozyme patterns, or micronucleate cells which mate with and have isozyme patterns similar to Tetrahymena canadensis (syngen 7). Immature progeny have been derived from crosses between the latter strains and T. canadensis recently collected in Colorado. The amicronucleate strains are now placed in the Tetrahymena sp. category, and we conclude that strains identifiable as T. cosmopolitanis are no longer available.The reliability of isozymes as characters in ciliate taxonomy was evaluated by comparing the present results for 3 enzymes in 15 groups of strains (syngens and phenosets) that had been compared in an earlier study. These enzyme systems gave correlation coefficients (r) of 0.75 or higher in the separate studies, and can be considered useful diagnostic traits. Other enzymes that were present at threshold levels of detectability or varied highly in concentration from species to species are too unreliable to be of diagnostic value. Some of the strains in the complex are so evolutionarily divergent at the molecular level that we have difficulty finding growth and electrophoretic conditions under which orthologous enzyme activities can be detected simultaneously for all the strains being compared.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1980.tb05397.x
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  • 6
    Electronic Resource
    Electronic Resource
    SELECTING GROUPS OF FISH TO OPTIMIZE ACQUISITION OF INFORMATION ON THERMAL DISCHARGES (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 16 (1980), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : A national trend over the last 25 years has been to require increasing amounts of biological information on industrial waste discharges. Acquisition of this essential information frequently involves complex assessments. In order to optimize the value of information gathered and to minimize the cost of this information, it is essential that analyses of redundancy be accompanied by the determination of which groups of organisms give the most information relative to a particular problem. Studies of the effect of temperature on the fishes of the New River, Glen Lyn, Virginia, provide us with the opportunity to evaluate the redundancy of information relative to the influence of temperature on fish distribution. Information of this type will be useful in selecting groups of organisms for laboratory temperature preference and avoidance tests. It was shown that the distribution of three genera (Notropis, Micropterus, and Etheostoma) had the highest correlation with the distribution of the total fish fauna and, therefore, provided the most information relative to temperature selection of the New River ichthyofauna. The final temperature preferences of the most abundant species of Notropis and Micropterus were representative of the response of the entire fish community based on the distribution of diversity indices relative to temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1980.tb02554.x
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  • 7
    Electronic Resource
    Electronic Resource
    HOUSEHOLD WATER USE: TECHNOLOGICAL SHIFTS AND CONSERVATION IMPLICATIONS (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 16 (1980), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Notes: : A study was undertaken to determine the effect of water intensive appliances or activities on household water consumption. Activities included in the study were use of the washing machine, dishwasher, swimming pool, and lawn watering. In the majority of cases these activities increased per capita consumption and were statistically significant. Households included in the study were not familiar with water saving devices available in the retail market. Even if tehse appliances were purchased, private economic benefits to the household would be low due to the inexpensive water charges levied. However, aggregate community benefits could be large if new well drilling cost or increase in storage facilities could be avoided. In order to avoid these increased costs, regulation or subsidy programs may be the most efficient policy alternatives available to the communities. Subsidies and regulation could potentially decrease water use and offer alternatives to increasing the water supply.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1980.tb03897.x
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  • 8
    Electronic Resource
    Electronic Resource
    “Hierarchical Diversity of Communities of Aquatic Insects and Fishes,” by Roger L. Kaesler and Edwin E. Herricks (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 16 (1980), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1980.tb02406.x
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  • 9
    Electronic Resource
    Electronic Resource
    BLADE TENDERIZATION EFFECTS ON BEEF LONGISSIMUS SENSORY AND INSTRON TEXTURAL MEASUREMENTS (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Blade tenderization effects on longissimus steaks from 112 steers fed rations differing in energy levels and feeding times were studied using Instron measurements and sensory evaluations for detecting textural changes. Ribeye steaks were removed before tenderization and after one pass through a blade tenderizer. Sensory panel scores for myofibrillar and overall tenderness significantly increased and detectable amounts of connective tissue decreased with blade tenderization. Juiciness and flavor scores were not significantly affected by tenderization. Cooking loss increased 2% for blade tenderized steaks. Blade tenderization had little effect on textural differences of steaks from cattle fed different nutritional regimens other than improving connective tissue and overall tenderness scores for steaks from the control and submaintenance cattle groups. Blade tenderization significantly lowered Instron adhesion peak force and numerous Instron Warner-Bratzler measurements (e.g., initial-yield force, peak force, initial-yield angle, total work done). Instron compression values were reduced by blade tenderization, but the differences were not significant. Adhesion values were more highly correlated with compression values than with Warner-Bratzler measures. Correlations between different factors of the same Instron test were high, indicating that not all of them would have to be measured. To test the effects of blade tenderization on muscles low in connective tissue, the measurement of Warner-Bratzler peak force, adhesion peak force, compression chewiness, and cohesiveness may be sufficient. Correlations between Instron and sensory measures of meat texture were significant, but were relatively low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07480.x
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  • 10
    Electronic Resource
    Electronic Resource
    ULTRASTRUCTURAL POSTMORTEM CHANGES IN ELECTRICALLY STIMULATED BOVINE MUSCLE (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Alterations in the morphology of beef longissimus dorsi, psoas major, semitendinosus, and supraspinatus muscles induced by electrical stimulation were studied at the light and electron microscopic levels. Samples of control and electrically stimulated muscles were removed from the carcass at 0.5-, l-, 6-, and 24-hr postmortem, processed, and embedded in plastic. Changes induced by electrical stimulation were compared with those in normal autolysis in control muscle. Light microscopic examination revealed contraction bands and intracellular edema in the stimulated muscle samples while the control showed no sign of morphological change. At the electron microscopic level, electrical stimulation caused specific structural changes in the muscles. Swollen sarcoplasmic reticulum, mitochondria, and T-tubules were observed in the stimulated muscle samples. In addition, contraction banding, intracellular edema, disintegration of the myofibril, and other morphological deviations were also observed. These data are in agreement with published work that mechanisms other than the prevention of cold shortening bring about tenderization of the resultant meat. This was partially explained by the accelerated autolysis seen in stimulated striated muscles and was an active rather than passive effect as proposed by cold shortening alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb03861.x
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