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The characterization of pectin-?-lactoglobulin interaction in relation to degree of pectin esterification.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F08%3A00021217" target="_blank" >RIV/60461373:22330/08:00021217 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The characterization of pectin-?-lactoglobulin interaction in relation to degree of pectin esterification.

  • Original language description

    The aim of this work was to characterise electrostatic interactions between whey proteins and pectin in relation to degree of pectin esterification. The different behaviour of these systems was observed by determination of particle size by dynamic lightscattering and by determination of (zeta)-potential by Doppler laser electrophoresis. Two types of pectin were chosen for this work: polygalacturonic acid as an example of non esterified ?pectin? and pectin from orange peel as an example of high esterified pectin. The ?­lactoglobulin was chosen because of mainly proportional representation in whey proteins. In the mixed system of ?­lactoglobulin with potassium pectate the macroscopic aggregates in different amount were produced at all values of pH. Thesecond mixed system (?­lactoglobulin with high esterified pectin) showed good stability with changing of pH value and temperature too. Addition of high esterified pectin seemed to be good prevention of protein­protein interaction at isoel

  • Czech name

    Charakterizace vlivu stupně esterifikace pektinu na interakce s ?-lactoglobulinem.

  • Czech description

    Pomocí stanovení velikosti částic dynamickým rozptylem světla a stanovením zeta-potenciálu byly charakterizovány elektrostatické interakce mezi ?-lactoglobulinem a pektiny s různým stupněm esterifikace. Ve směsi ?-lactoglobulinu s pektátem draselným se při všech hodnotách pH (3-7) vytvářely makroskopické agregáty. Směs ?-lactoglobulinu s vysoceesterifikovaným pektinem vykazovala dobrou stabilitu jak při změněn pH tak při záhřevu. Přídavek vysoceesterifikovaného pektinu účinně zabraňoval interakcím mezimolekulami bílkoviny jak i isoelektrickém bodě ?-lactoglobulinu, tak při jeho denaturační teplotě.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    GM - Food industry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Polysaccharides IV, Prague, Czech Republic, 13. 11. - 14. 11. 2008

  • ISBN

    978-80-86238-57-9

  • ISSN

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

  • Publisher name

    Česká chemická společnost

  • Place of publication

    Praha

  • Event location

    Praha

  • Event date

    Nov 13, 2008

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article