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dc.contributor.authorMabbitt, L. A.en
dc.date.accessioned2019-02-15T14:33:32Z
dc.date.available2019-02-15T14:33:32Z
dc.date.issued1952en
dc.identifier.urihttp://hdl.handle.net/1842/34980
dc.description.abstracten
dc.description.abstractA growth-chamber is described in which attempts have been made to grow microbe-free timothy grass from which silage can be made without chance of contamination. It was expected that useful information about the chemical changes due to plant cells in the ensilage process would result from analyses of the products.en
dc.description.abstractThe attempts were only partially successful; sterile silage was produced in one case only but some tentative conclusions could be drawn from the results of other experiments in which only a very restricted microflora was presenten
dc.description.abstractAs a result of plant cell metabolism the protein breakdown, production of volatile base and possibly of alcohol occurred to an extent comparable to that observed in normal silage. No significant increase in lactic or volatile acids took place but a definite increase in succinic acid was noted although no quantitative data were obtained. Hydrogen, which is normally evolved by grass silage in tubes, does not arise as a result of plant cell activity.en
dc.description.abstractNew methods are presented for the quantitative estimation of volatile base and alcohol in silage and qualitative methods of analysis are described for amino-acids, volatile acids and other carboxylic acids.en
dc.description.abstractIt is considered that the growth-chamber can be further improved in design and with the technique described should prove of use in other similar studies to those reported and also in other plant physiological investigations.en
dc.publisherThe University of Edinburghen
dc.relation.ispartofAnnexe Thesis Digitisation Project 2019 Block 22en
dc.relation.isreferencedbyen
dc.titleThe contribution of plant cells and their enzymes to the biochemical changes which take place in the ensilage processen
dc.typeThesis or Dissertationen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD Doctor of Philosophyen


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