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Ethanol reduces ripening of 'Royal Gala' apples stored in controlled atmosphere Anais da ABC (AABC)
WEBER,ANDERSON; BRACKMANN,AURI; BOTH,VANDERLEI; PAVANELLO,ELIZANDRA P.; ANESE,ROGERIO O.; SCHORR,MÁRCIO R.W..
This work aims at evaluate ethanol effect of acetaldehyde application in post-storage quality of 'Royal Gala' apples maintenance, and to compare them with consolidated storage techniques. Thus two experiments were performed during the years of 2008 and 2009. In the first experiment (2008), the application of ethanol, acetaldehyde or 1-MCP and ethylene scrubbing were tested. Fruits were stored in controlled atmosphere (CA) with 1.0kPa O2 and 2.0kPa CO2 at 0.5°C. In the second experiment (2009), the treatments tested were ethanol application combined or not with low relative humidity (LRH) and LRH alone. In this experiment, apples were stored in CA with 1.2kPa O2 + 2.5kPa CO2 at 0.5°C. After eight months of storage, 0.5 mL ethanol kg-1 apples month-1 or 0.25...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acetaldehyde; Anaerobic respiration; Ethylene; Quality.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100403
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Metabolism of cyanobacteria in anaerobic marine sediments. ArchiMer
Stal, L; Krumbein, W.
Two cyanobacteria isolated from marine microbial mats metabolized endogenous carbon reserves anaerobically in the dark. Microcoleus chthonoplastes reduced elemental sulfur to sulfide and Oscillatoria sp. additionally produced lactate in the absence of elemental sulfur. Under nitrogen fixing conditions, however, no sulfur reduction occurs. Lactate fermentation appeared to be the mechanism of anaerobic carbon degradation under these conditions. With a nitrogenase-reducible substrate, e.g. acetylene, added, lactate fermentation as well as sulfur reduction stops in cultures of Oscillatoria containing nitrogenase. In this case only ethylene production was observed. These cyanobacteria seem to possess the capability to carry out anaerobic dark metabolism...
Tipo: Text Palavras-chave: Oscillatoria; Microcoleus chthonoplastes; Cyanophyta; Metabolism; Chemical cycles; Algae; Anoxic sediments; Anaerobic respiration; Algal mats; Biogeochemistry; Fermentation; Sulfur; Nitrogen fixation; Nitrogen cycle.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-974.pdf
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