Heat capacities of L-cysteine, L-serine, L-threonine, L-lysine, and L-methionine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00566955" target="_blank" >RIV/61389013:_____/23:00566955 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/23:43927704 RIV/60461373:22810/23:43927704
Result on the web
<a href="https://www.mdpi.com/1420-3049/28/1/451" target="_blank" >https://www.mdpi.com/1420-3049/28/1/451</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/molecules28010451" target="_blank" >10.3390/molecules28010451</a>

Result language
angličtina
Original language name
Heat capacities of L-cysteine, L-serine, L-threonine, L-lysine, and L-methionine
Original language description
In an effort to establish reliable thermodynamic data for amino acids, heat capacity and phase behavior are reported for L-cysteine (CAS RN: 52-90-4), L-serine (CAS RN: 56-45-1), L-threonine (CAS RN: 72-19-5), L-lysine (CAS RN: 56-87-1), and L-methionine (CAS RN: 63-68-3). Prior to heat capacity measurements, initial crystal structures were identified by X-ray powder diffraction, followed by a thorough investigation of the polymorphic behavior using differential scanning calorimetry in the temperature range from 183 K to the decomposition temperature determined by thermogravimetric analysis. Crystal heat capacities of all five amino acids were measured by Tian–Calvet calorimetry in the temperature interval (262–358) K and by power compensation DSC in the temperature interval from 215 K to over 420 K. Experimental values of this work were compared and combined with the literature data obtained with adiabatic calorimetry. Low-temperature heat capacities of L-threonine and L-lysine, for which no or limited literature data was available, were measured using the relaxation (heat pulse) calorimetry. As a result, reference heat capacities and thermodynamic functions for the crystalline phase from near 0 K to over 420 K were developed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science

Project
<a href="/en/project/GA22-07164S" target="_blank" >GA22-07164S: Rational design of drug delivery systems based on tailored biodegradable polymers using an iterative in silico and experimental approach</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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