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  • 1
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    Nitrate and nitrite: origin in humans (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tannenbaum, S R -- New York, N.Y. -- Science. 1979 Sep 28;205(4413):1332, 1334-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/472751" target="_blank"〉PubMed〈/a〉
    Keywords: Diet ; Humans ; Intestinal Absorption ; Nitrates/*metabolism/urine ; Nitrites/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Nitrite and nitrate are formed by endogenous synthesis in the human intestine (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-06-30
    Description: Studies of nitrate balance in humans and analyses of fecal and ileostomy samples indicate that nitrite and nitrate are formed de novo in the intestine, possibly by heterotrophic nitrification. These findings significantly alter our previous conceptions of human exposure to nitrite and suggest an even wider role for nitrite in the etiology of human cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tannenbaum, S R -- Fett, D -- Young, V R -- Land, P D -- Bruce, W R -- New York, N.Y. -- Science. 1978 Jun 30;200(4349):1487-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663630" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Dietary Proteins/metabolism ; Feces/metabolism ; Humans ; Ileostomy ; Intestines/*metabolism ; Male ; Nitrates/*metabolism/urine ; Nitrites/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Nitrate synthesis in the germfree and conventional rat (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-04-03
    Description: Metabolic balance studies show that germfree and conventional Sprague-Dawley rats synthesize nitrate. Equivalent results for germfree and conventional rats eliminate the microflora as obligatory components of nitrate production. Nitrate synthesis appears to be a mammalian process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, L C -- Tannenbaum, S R -- Goldman, P -- 1 PO1 CA26731/CA/NCI NIH HHS/ -- 2 R26 CA25025-03/CA/NCI NIH HHS/ -- R01 CA15260/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):56-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6451927" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Feed/analysis ; Animals ; Digestive System/microbiology ; Feces/analysis ; Gas Chromatography-Mass Spectrometry ; *Germ-Free Life ; Male ; Nitrates/analysis/*biosynthesis/urine ; Nitrogen Isotopes ; Rats/*metabolism ; Specific Pathogen-Free Organisms
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
    Electronic Resource
    Electronic Resource
    Reaction at Limited Water Concentration 1. Sucrose Hydrolysis (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 34 (1969), 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: —To enable development of a model describing reaction kinetics in dehydrated foods, we studied sucrose hydrolysis at limited water concentration. Saturated sucrose solutions containing various acids and inert solid materials gave identical rate constants and energy of activation as predicted from dilute solutions. Reaction rates in freeze-dried systems humidified to low moisture contents indicated that any equation describing the rate of hydrolysis must include a term for the velocity of dissolution of solid sucrose into the surface water. The rate of hydrolysis was a pseudo first-order reaction obeying the same kinetics as in dilute solution; the rate of dissolution became rate-limiting when the initial supply of dissolved sucrose was exhausted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1969.tb10355.x
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  • 5
    Electronic Resource
    Electronic Resource
    STABILITY OF N-NITROSO COMPOUNDS (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 37 (1972), 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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1972.tb05834.x
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  • 6
    Electronic Resource
    Electronic Resource
    Protein Carbonyl Browning Systems: A Study of the Reaction Between Glucose and Insulin (1966)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 31 (1966), 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 interaction between glucose and insulin in the dry state was studied at a relatively low glucose concentration with carbon-14-labeled glucose. The conditions of the investigation were that the equilibrium relative humidity was 0.74, pH range 4–7, and temperature range 35–55°C. Under these conditions, the rate of the reaction decreased with increasing pH and had an activation energy of approximately 2.7 Kcal/mole. Reasons are given for believing that the reaction may be the formation of a Schiff base.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1966.tb15414.x
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  • 7
    Electronic Resource
    Electronic Resource
    New syntheses of cyclopenta[cd]pyrene 3,4-oxide and 4-pyrenylacetic acid (1990)
    s.l. : American Chemical Society
    The @journal of organic chemistry 55 (1990), S. 2918-2920 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00296a065
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  • 8
    Electronic Resource
    Electronic Resource
    Urinary Metabolites in the ω-Oxidation of 2,4-Dimethylheptanoic Acid (1965)
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 452-453 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHILE examining the metabolism, of 2,4-dimethyl-heptanoic acid-2-methyl-14C (DMHA) in the intact rat, it was found that approximately 20 per cent of the radioactive label was recoverable in the urine after 48 h, while more than 60 per cent was recoverable in respiratory carbon dioxide. (Manuscript ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/208452a0
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  • 9
    Electronic Resource
    Electronic Resource
    REACTION AT LIMITED WATER CONCENTRATION. 2. Chlorophyll Degradation (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 36 (1971), 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: SUMMARY— Chlorophyll degradation was studied as a function of water activity (Aw) in freeze-dried blanched spinach puree and in model systems containing cellulose-citrate buffer and chlorophyll a. At 37°C and Aw higher than 0.32, the most important mechanism of chlorophyll degradation is conversion to pheophytin. The rate of chlorophyll a transformation is 2.5 times faster than for chlorophyll b. The relation between Aw and log time for 20% chlorophyll degradation is linear and the chlorophyll/pheophytin ratio is useful for storage prediction as a function of Aw (down to Aw 0.32). At Aw lower than 0.32, the rate of pheophytin formation in spinach is low. New products are formed which can interfere with spectrophotometric determination of chlorophylls and pheophytins. The possibility of removal of Mg from the porphyrin ring of chlorophyll a was shown in model systems even at Aw below BET (Brunnauer-Emmet-Teller) monolayer coverage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1971.tb15542.x
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  • 10
    Electronic Resource
    Electronic Resource
    New Process for Reducing the Nucleic Acid Content of Yeast (1970)
    [s.l.] : Nature Publishing Group
    Nature 228 (1970), S. 181-181 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Candida utilis was grown in continuous culture2 with glucose as the carbon source at pH. 4-0 and at a dilution rate of 0-19 h-1 (^max = 0-4 h-1). The initial nucleic acid content of the cells in these growth conditions was approximately 7 per cent. After collection, the cells were treated in a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/228181a0
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