The study of moisture adsorption process in comfrey (Symphytum officinale L.) roots at 25°C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F10%3A39881744" target="_blank" >RIV/00216275:25310/10:39881744 - 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

The study of moisture adsorption process in comfrey (Symphytum officinale L.) roots at 25°C

Popis výsledku v původním jazyce

Sorption isotherms of comfrey (Symphytum officinale L.) root samples with different particle size were obtained at 25°C. The shape of isotherm was similar to those of high-sugar-content foods and the particle size did not affect adsorption process in theaw range used in this study. Blahovec-Yanniotis model was considered to give the best fit over the whole range of aw tested. Various parameters describing the properties of sorbed water derived from GAB and Blahovec-Yanniotis models have been discussed.DSC method was used to measure the glass transition temperatures (Tg) of root samples in relation to water activity. The safe moisture content was determined in 13.39 g/100g in dried basis at 25°C. Combining the Tg line with sorption isotherm in one plot, it was found that the glass transition temperature concept overestimated the temperature stability for both root samples.

Název v anglickém jazyce

The study of moisture adsorption process in comfrey (Symphytum officinale L.) roots at 25°C

Popis výsledku anglicky

Sorption isotherms of comfrey (Symphytum officinale L.) root samples with different particle size were obtained at 25°C. The shape of isotherm was similar to those of high-sugar-content foods and the particle size did not affect adsorption process in theaw range used in this study. Blahovec-Yanniotis model was considered to give the best fit over the whole range of aw tested. Various parameters describing the properties of sorbed water derived from GAB and Blahovec-Yanniotis models have been discussed.DSC method was used to measure the glass transition temperatures (Tg) of root samples in relation to water activity. The safe moisture content was determined in 13.39 g/100g in dried basis at 25°C. Combining the Tg line with sorption isotherm in one plot, it was found that the glass transition temperature concept overestimated the temperature stability for both root samples.

Druh

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

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F08%2F1536" target="_blank" >GA203/08/1536: Progresívní metody v chemické, potravinářské a klinické analýze</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Scientific Papers of the University of Pardubice. Series A, Faculty of Chemical Technology

ISSN

1211-5541

e-ISSN

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Svazek periodika

16

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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