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  • Articles  (22,349)
  • Springer  (12,042)
  • National Academy of Sciences  (9,589)
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  • 2015-2019  (12,948)
  • 2005-2009
  • 1990-1994
  • 1980-1984  (9,401)
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  • 1981  (9,401)
  • Medicine  (22,349)
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  • Articles  (22,349)
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  • 2015-2019  (12,948)
  • 2005-2009
  • 1990-1994
  • 1980-1984  (9,401)
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  • 1
    Electronic Resource
    Electronic Resource
    Enzymatic degradation of polar lipids in deep-frozen parsley (1981)
    Springer
    European journal of nutrition 20 (1981), S. 172-181 
    Details
    ISSN: 1436-6215
    Keywords: galactolipids ; phospholipids ; frozen storage ; parsley
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Während der Gefrierlagerung von thermisch nicht behandelten Blattgeweben laufen bei praxisüblichen Lagerungstemperaturen enzymatische Lipidabbaureaktionen ab, die schon nach wenigen Wochen zu einem weitgehenden oder vollständigen Verlust der nativen polaren Lipide führen. Diese von einer Geschmacksverschlechterung begleiteten Prozesse wurden am Beispiel von Petersilieblättern näher untersucht. Unter den Reaktionsprodukten befanden sich beträchtliche Mengen von 6-Acylmonogalaktosyldiglyceriden — entstanden durch Transacylierung aus Monogalaktosyldiglyceriden — sowie von Phosphatidsäure, deren Bildung durch Einwirkung von Phospholipase D auf Phospholipide zu erklären ist. Die vielfach angenommene Reaktionsfolge: Spaltung der Lipide durch Acylhydrolasen, Hydroperoxidation der gebildeten freien Fettsäuren durch Lipoxigenase und Zerfall der Hydroperoxide in Off-flavour-Komponenten spielt möglicherweise nur eine untergeordnete Rolle. Die Phospholipase D ist selbst bei −24
    Notes: Summary Under the frozen storage at usual storage temperatures of leafy tissues not pretreated by heat, enzymatic lipid degradation reactions take place, which lead already after a few weeks to a considerable or complete loss of the native polar lipids. These degradation processes being accompanied by a deterioration of the flavour have been studied in greater detail in parsley leaves. Among the reaction products we found large amounts of 6-acylmonogalactosyl diglycerides (formed from monogalactosyl diglycerides by enzymatic transacylation) and phosphatidic acid (formed from phospholipids through phospholipase-D action). The generally assumed reaction sequence: formation of free fatty acids by acyl hydrolases followed by hydroperoxidation through lipoxygenase and degradation o f the hydroperoxides into off-flavour compounds may hence take place, if at all, only to a limited extent. Considerable phospholipase D as well as minor acyl transferase activities are still detected at −24
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021562
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  • 2
    Electronic Resource
    Electronic Resource
    Unconventional protein sources: apricot seed kernels (1981)
    Springer
    European journal of nutrition 20 (1981), S. 208-215 
    Details
    ISSN: 1436-6215
    Keywords: apricot seed kernels ; amino acid composition ; PER-data
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Hamawy apricot seed kernels (sweet), Amar apricot seed kernels (bitter) and treated Amar apricot kernels (bitterness removed) were evaluated biochemically. All kernels were found to be high in fat (42.2–50.91 %), protein (23.74–25.70 %) and fiber (15.08–18.02 %). Phosphorus, calcium, and iron were determined in all experimental samples. The three different apricot seed kernels were used for extensive study including the qualitative determination of the amino acid constituents by acid hydrolysis, quantitative determination of some amino acids, and biological evaluation of the kernel proteins in order to use them as new protein sources. Weanling albino rats failed to grow on diets containing the Amar apricot seed kernels due to low food consumption because of its bitterness. There was no loss in weight in that case. The Protein Efficiency Ratio data and blood analysis results showed the Hamawy apricot seed kernels to be higher in biological value than treated apricot seed kernels. The Net Protein Ratio data which accounts for both weight, maintenance and growth showed the treated apricot seed kernels to be higher in biological value than both Hamawy and Amar kernels. The Net Protein Ratio for the last two kernels were nearly equal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021567
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of L-tryptophan loading on glucose tolerance in kwashiorkor children (1981)
    Springer
    European journal of nutrition 20 (1981), S. 223-228 
    Details
    ISSN: 1436-6215
    Keywords: kwashiorkor ; glucose tolerance ; tryptophan loading
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021569
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  • 4
    Electronic Resource
    Electronic Resource
    Survey of obesity in child communities (1981)
    Springer
    European journal of nutrition 20 (1981), S. 253-262 
    Details
    ISSN: 1436-6215
    Keywords: obesity ; JW/AH index method ; diabetes ; age-groups ; survey
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Die Verfasser haben eine Reihenuntersuchung für die Aufklärung der Obesitätsfälle in der Kinderbevölkerung des Bezirks Monor (Komitat Pest) durchgeführt. Das Körpergewicht und die Körperlänge von 12 751 Kindern (3–18 Jahre alt) wurden gemessen. Mit der IW/AH-(Idealgewicht/aktuelle Körperlänge-)Indexmethode wurden 705 (5,3 %) Kinder übergewichtig gefunden. Mit Fragebogenmethode wurde geklärt, daß in den Familien von 784 Kindern Diabetes vorkommt. Unter diesen wurden 66 Obesitätsfälle unterschieden. Das Prozentverhältnis ist in dieser Gruppe mit 8,4 % viel höher als in der allgemeinen Population. Die größte Zahl der Obesitätsfälle wurde im Pubertätsalter gefunden. Bei den Kindern mit einer Familiengeschichte für Diabetes war diese Zahl in dem Alter von 14 bis 18 Jahren am größten. Die spezielle Untersuchung und ärztliche Beratung dieser Kinder ist im Gange.
    Notes: Summary Authors conducted the weight-height measurements of 12,751 children in the district of Monor on the basis of the IW/AH index and found 705 obese children. Childhood obesity rate of the district was 5.53 %. The questionnaires sent to the affected children's families revealed diabetes in the families of 784 children, 66 of whom were obese, which is 8.4 % -much higher than the population's value. The highest obesity rate was found in puberty, while in children with a family background for diabetes this value was found in 14–18 years of age. The groups investigated are given special nursing. Authors express thanks to all the persons who contributed to carry out the measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021636
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  • 5
    Electronic Resource
    Electronic Resource
    Protein-rich food mixtures for feeding the young in Egypt 1. Formulation (1981)
    Springer
    European journal of nutrition 20 (1981), S. 275-282 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Ten protein-rich food mixtures were suggested. They are based on popular dishes which could be prepared simply at home. Such mixtures were prepared from seeds or legumes available in the local markets at reasonable prices. These ingredients are polished rice, decorticated lentils, defatted sesame flour, whole or roasted chick peas (dehulled), maize bread, sun flour kernels, fenugreek seeds, wheat (whole grains or parboiled grains), white wheat flour, defatted peanut flour, defatted sesame flour and dry yeast. The protein content of such food mixtures ranged from 17.7 to 23.2 %, which is in agreement with recommended values. Defatted sesame flour was incorporated in most of the mixtures in order to correct for their sulphur-containing amino-acids as it is already known that sesame is a rich source of sulphur-containing amino acids in comparison to other vegetable sources. Further investigations are going on to determine the nutritive value of the formulated mixtures before feeding them to the children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021639
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  • 6
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1981)
    Springer
    European journal of nutrition 20 (1981), S. 229-232 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021570
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  • 7
    Electronic Resource
    Electronic Resource
    Enrährung und Krebs (1981)
    Springer
    European journal of nutrition 20 (1981), S. 233-246 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary A meeting report is given (Annual Symposium on Fundamental Cancer Research, Houston, and International Congress of Nutrition, San Diego) which mainly deals with cancerogenesis: The role of retinoids as inhibitors, and the role of pyrolysis products as promoter of cancerogenesis, both essentially active in the tumor promotion range of cancerogenesis, after previous initiation. In the future, enhanced chances may be foreseen for active prevention and for causal elucidation of cancer formation, which until now seems to be a spontaneous disease.
    Notes: Zusammenfassung An Hand eines Tagungsberichtes (Annual Symposium on Fundamental Cancer Research, Houston, und Internationaler Ernährungskongreß, San Diego) wird vor allem auf Fragen der Kanzerogenese eingegangen: Rolle von Carotinoiden als Hemmstoffe und Rolle von Pyrolyse-Produkten als Förderer der Krebsentstehung, beide überwiegend im Bereich der Promotion nach anderweitig erfolgter Initiation. Hier liegen für die Zukunft Chancen aktiver Prävention und kausaler Aufklärung bisher scheinbar schicksalhafter (Spontan-)Erkrankungen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021634
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  • 8
    Electronic Resource
    Electronic Resource
    Protein transport and protein storage in etiology and pathogenesis of arteriosclerosis (1981)
    Springer
    European journal of nutrition 20 (1981), S. 1-43 
    Details
    ISSN: 1436-6215
    Keywords: arteriosclerogenesis ; capillary basement membrane thickening ; heart infarction ; protein storage ; risk factor diseases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027956
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  • 9
    Electronic Resource
    Electronic Resource
    In-vivo studies on C2 organic acids in the tissues of rats injected with xylitol and glucose (1981)
    Springer
    European journal of nutrition 20 (1981), S. 69-75 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Oxal-, Glyoxyl- und GlykollsÄure wurden in Rattenleber und -niere nach Injektion von [U-14C]-Xylit oder [U-14C]-Glucose bestimmt. Weder Glucose noch Xylit führten zu einer Oxal- oder GlyoxylsÄurebildung. GlycollsÄure wurde jedoch in beiden Geweben nach Injektion von Xylit gefunden. Mögliche Stoffwechselwege vom Xylit zur GlykollsÄure werden diskutiert.
    Notes: Summary Oxalic, glyoxylic, and glycollic acid were determined in rat liver and kidney after injection with [U-14C]-xylitol or [U-14C]-glucose. Neither glucose nor xylitol led to the formation of oxalic and glyoxylic acid, yet glycollic acid was found in both tissues after injection with xylitol. Possible pathways leading from xylitol to glycollic acid are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027959
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  • 10
    Electronic Resource
    Electronic Resource
    Biochemische Grundlagen der Bestimmung von Soja-protein mit immunologischen Methoden (1981)
    Springer
    European journal of nutrition 20 (1981), S. 55-68 
    Details
    ISSN: 1436-6215
    Keywords: Sojaprotein ; Radioimmunoassay (Radioimmuntest) ; Proteindenaturierung ; Passive HÄmagglutination (Sojamehl)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary Soy-bean protein loses its immunogenicity by heat treatment through thermal denaturation. Incubation with 6m guanidine-hydrochloride restores the immunogenicity. This reagent causes dissociation of protein aggregates formed during autoclaving of soy protein. This seems to be the major step in the restitution of immunogenicity. These findings are discussed in connection with the quantification of heat-denaturated soy-bean protein by two independent immunologic methods: Solid-Phase Radioimmunoassay and Passive Hemagglutination (inhibition test).
    Notes: Zusammenfassung Durch thermische Denaturierung geht die ImmunogenitÄt von Sojaprotein verloren. Inkubation mit 6m-Guanidin-HCl stellt die ImmunogenitÄt wieder her. Durch dieses Reagens wird die bei Autoklavieren beobachtete Assoziation eines Teils der Sojaproteine wieder rückgÄngig gemacht. Dies dürfte die Hauptursache für die Rückgewinnung der ImmunogenitÄt sein. Diese Befunde werden im Zusammenhang mit der Bestimmung von autoklaviertem Sojaprotein durch zwei immunologische Verfahren diskutiert: Solid-Phase Radioimmunoassay und passive HÄmagglutination (Inhibitionsverfahren).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027958
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