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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Biorheology

ISSN

0006-355X

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

289-298

Kód UT WoS článku

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EID výsledku v databázi Scopus

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