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EFFECTS OF HIGH HYDROSTATIC PRESSURE ( HHP) ON THE PROTEIN STRUCTURE AND THERMAL STABILITY OF SAUVIGNON BLANC WINE

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dc.creatorSERGIO MIGUEL ACUÑA NELSON
dc.creatorLUIS EDUARDO MORENO OSORIO
dc.creatorGIPSY ELIZABETH TABILO MUNIZAGA
dc.creatorRICARDO DARÍO VILLALOBOS CARVAJAL
dc.date2014
dc.date.accessioned2025-01-10T14:37:33Z
dc.date.available2025-01-10T14:37:33Z
dc.date.issued2014
dc.description.abstractPROTEIN HAZE DEVELOPMENT IN BOTTLED WHITE WINES IS ATTRIBUTED TO THE SLOW DENATURATION OF UNSTABLE PROTEINS, WHICH RESULTS IN THEIR AGGREGATION AND FLOCCULATION. THESE PROTEIN FRACTIONS CAN BE REMOVED BY USING BENTONITE; HOWEVER, A DISADVANTAGE OF THIS TECHNIQUE IS ITS COST. THE EFFECTS OF HIGH HYDROSTATIC PRESSURE (HHP) ON WINE STABILITY WERE STUDIED. FOURIER TRANSFORM INFRARED SPECTROSCOPY EXPERIMENTS WERE PERFORMED TO ANALYSE THE SECONDARY STRUCTURE OF PROTEIN, THERMAL STABILITY WAS EVALUATED WITH DIFFERENTIAL SCANNING CALORIMETRY, WHILE A HEAT TEST WAS PERFORMED TO DETERMINE WINE PROTEIN THERMAL STABILITY. THE RESULTS CONFIRMED THAT HIGH PRESSURE TREATMENTS MODIFIED THE ?-HELICAL AND ?-SHEET STRUCTURES OF WINE PROTEINS. THROUGHOUT THE 60 DAYS STORAGE PERIOD THE ?-HELIX STRUCTURE IN HHP SAMPLES DECREASED. STRUCTURAL CHANGES BY HHP (450 MPA FOR 3 AND 5 MIN) IMPROVE THERMAL STABILITY OF WINE PROTEINS AND THUS DELAY HAZE FORMATION IN WINE DURING STORAGE.
dc.formatapplication/pdf
dc.identifier.doi10.1016/j.foodchem.2014.01.051
dc.identifier.issn1873-7072
dc.identifier.issn0308-8146
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8250
dc.languagespa
dc.publisherFOOD CHEMISTRY
dc.relation.uri10.1016/j.foodchem.2014.01.051
dc.rightsPUBLICADA
dc.subjectWINE PROTEIN STABILITY
dc.subjectSECONDARY STRUCTURE OF PROTEIN
dc.subjectPATHOGENESIS-RELATED (PR) PROTEINS
dc.subjectMELTING TEMPERATURE
dc.subjectHIGH HYDROSTATIC PRESSURE
dc.subjectHAZE FORMATION
dc.titleEFFECTS OF HIGH HYDROSTATIC PRESSURE ( HHP) ON THE PROTEIN STRUCTURE AND THERMAL STABILITY OF SAUVIGNON BLANC WINE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDIRECCION DE INVESTIGACION
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN ALIMENTOS
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN ALIMENTOS
ubb.SedeCONCEPCIÓN
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
ubb.SedeCHILLÁN
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