Temat: sorption isotherm - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: New approach to the calculation of pistachio powder hysteresis
Autorzy:: Tavakolipour, H.
Mokhtarian, M.
Powiązania:: https://bibliotekanauki.pl/articles/26003.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: calculation
pistachio nut
powder
sorption isotherm
storage
hysteresis
Źródło:: International Agrophysics; 2016, 30, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Kinetic model of water vapour adsorption by gluten-free starch
Autorzy:: Ocieczek, A.
Kostek, R.
Ruszkowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/973244.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: kinetic model
water vapour adsorption
gluten-free starch
sorption isotherm
starch
Opis:: This study evaluated the kinetics of water vapour adsorption on the surface of starch molecules derived from wheat. The aim of the study was to determine an equation that would allow estimation of water content in tested material in any time-point of the adsorption process aimed at settling a balance with the environment. An adsorption isotherm of water vapour on starch granules was drawn. The parameters of the Guggenheim, Anderson, and De Boer equation were determined by characterizing the tested product and adsorption process. The equation of kinetics of water vapour adsorption on the surface of starch was determined based on the Guggenheim, Anderson, and De Boer model describing the state of equilibrium and on the model of a first-order linear inert element describing the changes in water content over time.
Źródło:: International Agrophysics; 2015, 29, 1; 115-119
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of water activity and glass transition on critical preservation conditions of dried squids
Autorzy:: Ren, A.-Q.
Zhang, M.
Mujumdar, A.
Powiązania:: https://bibliotekanauki.pl/articles/25846.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: critical preservation condition
dried squid
glass transition
glass transition temperature
physical parameter
preservation
sorption isotherm
squid
water activity
Źródło:: International Agrophysics; 2011, 25, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Thermodynamic properties of water sorption isotherms of grape seed
Autorzy:: Majd, K.M.
Karparvarfard, S.H.
Farahnaky, A.
Ansari, S.
Powiązania:: https://bibliotekanauki.pl/articles/24427.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: thermodynamic property
water sorption
moisture sorption
isotherm
grape seed
seed
Opis:: In this study the moisture sorption isotherm of grape seed was determined by using a static gravimetric method at 35-65°C and 0.108-0.821 water activity range. The sorption isotherms were found to be typical sigmoid shape of most food materials. Five models including the Brunauer-Emmett-Teller (2-parameter), Guggenheim, Anderson and De Boer (3-parameter), Oswin (2-parameter), Ferro-Fontan (3-parameter) and Peleg (4-parameter) models were considered to fit the experimental data. The Ferro- Fontan and Peleg equations (at three temperatures 35, 45, 65°C) having R2 greater than 0.97 and lower values of standard error of estimate and deviation modulus gave the best fit of the experimental data throughout the entire range of water activity. The net isosteric heat of sorption, calculated by Calusius-Clapeyron equation on experimental data, was found to be a polynomial and exponential function of equilibrium moisture content within the temperature range investigated.
Źródło:: International Agrophysics; 2014, 28, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Time and temperature dependent sorption behaviour of dimethoate pesticide in various Indian soils
Autorzy:: Rani, S.
Sud, D.
Powiązania:: https://bibliotekanauki.pl/articles/25458.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: organophosphate pesticide
dimethoate
pesticide
time
temperature
sorption
isotherm
kinetics
thermodynamics
soil
soil contamination
Opis:: Experiments were conducted to study the sorption behaviour of dimethoate in three Indian soils at different temperatures. A kinetic study showed that adsorption equilibrium was reached within 15 h at different initial levels of pesticide concentration. Applicability of the pseudo second order kinetic model suggested that the adsorption process was complex and several mechanisms were involved. The Freundlich model explained the adsorption behaviour adequately and the isotherms were of S-type. The adsorption process was found to be strongly affected by temperature. The Gibbs free energy change, ΔGº values (from -15.81 to -16.60 kJ mol-1) indicated that the process was spontaneous and exothermic in nature. The change in enthalpy of adsorption, ΔH° values (from -17.729 to -21.539 kJ mol-1) suggested that relatively weak H-bond forces were the main driving forces for adsorption. Desorption was found to be concentration- and temperature-depen- dent with higher desorption occurring at higher temperature and concentration levels. The results signify the importance of temperature in controlling the mobility of dimethoate in water bodies.
Źródło:: International Agrophysics; 2014, 28, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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