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  • 1
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Lebensmittel-Untersuchung und -Forschung 207 (1998), S. 26-30 
    ISSN: 1431-4630
    Keywords: Key words Food ; Free amino acids ; Microwave-assisted extraction ; Shaking extraction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  A microwave-assisted solvent extraction technique was developed for the extraction of free amino acids from foods. Four different samples were subjected to microwave extraction with varying amounts of extractant at several temperature values, for varying times to determine optimum extraction conditions. The extractions were performed with or without shaking the vessels in order to investigate the effects of mixing on the extraction efficiency and reproducibility. A comparison was made between this method and the traditional 1 h shaking extraction. The experiments indicated that the microwave-assisted extraction is an effective technique for the extraction of free amino acids from samples of plant or animal origin. The extraction yields obtained by the microwave method were about 10% better than by the conventional shaking technique. The times needed for the complete sample preparations were reduced by 66% with the application of microwaves.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 184 (1987), S. 274-276 
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Summary A rapid and effective method has been developed for extracting various antinutritive compounds occurring in different plants. A simple microwave technique was used to extract pyrimidine-glucosides and gossypol from raw and processed faba bean and cottonseed meal, respectively. A comparison was made between the proposed method and the traditional Soxhlet technique. It has been shown, that the new method is more effective regarding the yield of the extraction and the protection of the compounds to be analyzed. The method is suitable for the rapid extraction of large sample series.
    Notes: Zusammenfassung Eine schnelle und effektive Extraktionsmethode wurde zur Bestimmung verschiedener antinutritiver Komponenten pflanzlicher Herkunft entwickelt. Die einfache Mikrowellentechnik wurde zur Extraktion von Pyrimidinglucosiden und Gossypol roher und technologisch bearbeiteter Ackerbohnen-und Baumwolle-Mahlprodukte verwendet und mit der traditionellen Soxhlet-Methode verglichen. Die neue Methode ist hinsichtlich der Ausbeute der Extraktion und des Schutzes der extrahierten Komponenten wesentlich wirksamer als die Soxhlet-Extraktion. Die Methode erlaubt größere Probeserien rasch zu extrahieren.
    Type of Medium: Electronic Resource
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