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Combined effect of high hydrostatic pressure and mild heat treatments on pectin methylesterase (PME) inactivation in comminuted orange.

Identifieur interne : 001882 ( Ncbi/Merge ); précédent : 001881; suivant : 001883

Combined effect of high hydrostatic pressure and mild heat treatments on pectin methylesterase (PME) inactivation in comminuted orange.

Auteurs : Viridiana Tejada-Ortigoza [Mexique] ; Zamantha Escobedo-Avellaneda [Mexique] ; Aurora Valdez-Fragoso [Mexique] ; Hugo Mújica-Paz [Mexique] ; Jorge Welti-Chanes [Mexique]

Source :

RBID : pubmed:25345712

English descriptors

Abstract

Comminuted orange, a product obtained by grinding the juice and peel and used to formulate beverages, has a high pectin methylesterase (PME) activity; thus the inactivation of this enzyme is necessary to avoid quality losses related to cloud loss. The use of high hydrostatic pressure (HHP) and mild temperature allows inactivation of enzymes with minimal quality changes. This work aimed to evaluate the effect of pressure, mild temperature and time of treatment, including come-up and holding time, on the inactivation of PME in comminuted orange, and to apply kinetic and response surface models (RSM) to predict residual PME activity (A/A0 ).

DOI: 10.1002/jsfa.6969
PubMed: 25345712

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Le document en format XML

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<title xml:lang="en">Combined effect of high hydrostatic pressure and mild heat treatments on pectin methylesterase (PME) inactivation in comminuted orange.</title>
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<name sortKey="Tejada Ortigoza, Viridiana" sort="Tejada Ortigoza, Viridiana" uniqKey="Tejada Ortigoza V" first="Viridiana" last="Tejada-Ortigoza">Viridiana Tejada-Ortigoza</name>
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<name sortKey="Escobedo Avellaneda, Zamantha" sort="Escobedo Avellaneda, Zamantha" uniqKey="Escobedo Avellaneda Z" first="Zamantha" last="Escobedo-Avellaneda">Zamantha Escobedo-Avellaneda</name>
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<name sortKey="Valdez Fragoso, Aurora" sort="Valdez Fragoso, Aurora" uniqKey="Valdez Fragoso A" first="Aurora" last="Valdez-Fragoso">Aurora Valdez-Fragoso</name>
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<name sortKey="Mujica Paz, Hugo" sort="Mujica Paz, Hugo" uniqKey="Mujica Paz H" first="Hugo" last="Mújica-Paz">Hugo Mújica-Paz</name>
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<term>Citrus sinensis</term>
<term>Food Preservation</term>
<term>Hot Temperature</term>
<term>Humans</term>
<term>Hydrostatic Pressure</term>
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<div type="abstract" xml:lang="en">Comminuted orange, a product obtained by grinding the juice and peel and used to formulate beverages, has a high pectin methylesterase (PME) activity; thus the inactivation of this enzyme is necessary to avoid quality losses related to cloud loss. The use of high hydrostatic pressure (HHP) and mild temperature allows inactivation of enzymes with minimal quality changes. This work aimed to evaluate the effect of pressure, mild temperature and time of treatment, including come-up and holding time, on the inactivation of PME in comminuted orange, and to apply kinetic and response surface models (RSM) to predict residual PME activity (A/A0 ).</div>
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<Month>04</Month>
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<Title>Journal of the science of food and agriculture</Title>
<ISOAbbreviation>J. Sci. Food Agric.</ISOAbbreviation>
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<ArticleTitle>Combined effect of high hydrostatic pressure and mild heat treatments on pectin methylesterase (PME) inactivation in comminuted orange.</ArticleTitle>
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<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Comminuted orange, a product obtained by grinding the juice and peel and used to formulate beverages, has a high pectin methylesterase (PME) activity; thus the inactivation of this enzyme is necessary to avoid quality losses related to cloud loss. The use of high hydrostatic pressure (HHP) and mild temperature allows inactivation of enzymes with minimal quality changes. This work aimed to evaluate the effect of pressure, mild temperature and time of treatment, including come-up and holding time, on the inactivation of PME in comminuted orange, and to apply kinetic and response surface models (RSM) to predict residual PME activity (A/A0 ).</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">During come-up time in treatments at 68 °C, the higher the pressure, the lower was the A/A0 obtained. At 550 MPa/68 °C/10 min the lowest residual activity value was obtained (15.6%). A/A0 was well adjusted to the RSM, and a first-order kinetic model was applied to describe the inactivation of PME. In general, the higher the pressure, the lower was the A/A0 reached, as the increasing values of k from 3.5 × 10(-2) to 55.5 × 10(-2) min(-1) indicated. Activation volume (Va ) values ranging from -9.2 to -17.7 cm(3) mol(-1) , and activation energies (Ea ) between 50.0 and 68.2 kJ mol(-1) were calculated.</AbstractText>
<AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">550 MPa/68 °C/10 min, 350 MPa/68 °C/10 min and 450 MPa/56 °C/10 min treatments were satisfactory (∼84% inactivation) to inactivate PME. A first-order kinetic model was applied to describe PME inactivation, and the resulting A/A0 adjusted to the RSM. In addition, linearized Arrhenius and Eyring equations were well fitted in order to obtain Ea and Va , respectively.</AbstractText>
<CopyrightInformation>© 2014 Society of Chemical Industry.</CopyrightInformation>
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<LastName>Tejada-Ortigoza</LastName>
<ForeName>Viridiana</ForeName>
<Initials>V</Initials>
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<Affiliation>Centro de Biotecnología FEMSA, Escuela de Biotecnología y Alimentos Tecnológico de Monterrey, CP 64849, Monterrey, NL, México.</Affiliation>
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<LastName>Valdez-Fragoso</LastName>
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<LastName>Mújica-Paz</LastName>
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<NameOfSubstance UI="D002265">Carboxylic Ester Hydrolases</NameOfSubstance>
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<Chemical>
<RegistryNumber>EC 3.1.1.11</RegistryNumber>
<NameOfSubstance UI="C022323">pectinesterase</NameOfSubstance>
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<Keyword MajorTopicYN="N">PME</Keyword>
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<name sortKey="Tejada Ortigoza, Viridiana" sort="Tejada Ortigoza, Viridiana" uniqKey="Tejada Ortigoza V" first="Viridiana" last="Tejada-Ortigoza">Viridiana Tejada-Ortigoza</name>
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<name sortKey="Escobedo Avellaneda, Zamantha" sort="Escobedo Avellaneda, Zamantha" uniqKey="Escobedo Avellaneda Z" first="Zamantha" last="Escobedo-Avellaneda">Zamantha Escobedo-Avellaneda</name>
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