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Thermal behavior of calafate (Berberis buxifolia) seeds

dc.creatorMartín-Ramos,Pablo
dc.creatorMartín-Gil,Jesús
dc.creatorRamos-Sánchez,María del Carmen
dc.creatorHernández-Navarro,Salvador
dc.creatorMartín-Gil,Francisco Javier
dc.date2016-01-01
dc.date.accessioned2019-06-12T02:00:51Z
dc.date.available2019-06-12T02:00:51Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-92002016000300019
dc.identifier.urihttps://bibliotecadigital.infor.cl/handle/20.500.12220/29031
dc.descriptionLow temperature is the most important factor limiting the distribution of plants. In this study the low temperature thermal behavior of calafate seeds was analyzed by Differential Scanning Calorimetry (DSC), and a vibrational characterization of their different components was conducted by infrared spectroscopy (FTIR). In cold-acclimated plants, such as calafate, the total percentage of polyunsaturated fatty acids in their seeds is significantly higher than that of saturated fatty acids. Successive freezing-thawing cycles lead to increased formation of linoleic (LA) and linolenic (LNA) α-crystals. This process would barely modify the phase-transition temperature of the lipid membrane but would lead to an increase in the membrane fluidity (LNA would make the cell membranes more fluid during seed development). It seems that processes in membranes rather than in the glassy cytoplasm may determine the cooling resistance.
dc.formattext/html
dc.languageen
dc.publisherUniversidad Austral de Chile, Facultad de Ciencias Forestales
dc.relation10.4067/S0717-92002016000300019
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBosque (Valdivia) v.37 n.3 2016
dc.subjectácido linolenico
dc.subjectcalafate
dc.subjectDSC
dc.subjectFTIR
dc.subjectseeds
dc.titleThermal behavior of calafate (Berberis buxifolia) seeds
dc.typeArtículo de revista


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