Changes in carrot (Daucus carota) parenchyma at higher temperatures detected in vivo by Dynamic Mechanical (Thermal) Analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F12%3A54930" target="_blank" >RIV/60460709:41310/12:54930 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Changes in carrot (Daucus carota) parenchyma at higher temperatures detected in vivo by Dynamic Mechanical (Thermal) Analysis

Original language description

The outer parenchyma of carrot was tested using dynamic mechanical analysis (DMA), in air with 90% humidity between 30 and 90°C. Temperature plots of storage (SM i.e. elastic) and loss (LM i.e. inelastic) moduli were obtained. The SM and LM values were the basis for the calculation of the loss tangent (LT), the parameter expressing the ratio of inelastic to elastic parenchyma toughness. As expected, the tissue toughness decreased with increasing temperature. For both moduli, two characteristic temperature areas with temperature slope minima were observed ? they were termed low (I) and high (II) temperature negative peaks on the temperature slope plots. It was shown that the negative peaks were related to an increase in the inelastic part of the tissuetoughness. All plots were dependent on the temperature rate: increasing the temperature rate (from 0.5 to 2°C/minute) resulted in a shift of both the negative peaks I and II to higher temperatures, thereby reducing I and increasing II. It

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GM - Food industry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Biorheology

ISSN

0006-355X

e-ISSN

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Volume of the periodical

49

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

289-298

UT code for WoS article

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EID of the result in the Scopus database

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