Abstract
In this chapter, the current state of knowledge regarding anthocyanin chemistry and the corresponding reversible multistate system of the chemical species is presented. Mathematical equations to account for the kinetics and thermodynamics of the multistate system of anthocyanins are presented in a simple form to allow their use by non-specialists. The calculation of all rate and equilibrium constants of malvidin-3-glucoside in diluted solutions has been carried out to illustrate the use of these expressions. The irreversible reactivity of anthocyanins in foodstuffs, particularly in wine, leading to pyranoanthocyanins of the first and second generation is discussed. The use of the relative energy level diagrams of the multistate species together with their pH-dependent mole fraction distribution is reported and their usefulness emphasized. Using the morning glory flower as an example, the expression of its blue colour is rationalized by considering the thermodynamics and kinetics of the multistate system.
| Original language | English |
|---|---|
| Title of host publication | Steviol Glycosides: Cultivation, Processing, Analysis and Applications in Food |
| Editors | Marianne Su-Ling Brooks, Giovana B. Celli |
| Publisher | Royal Society of Chemistry |
| Pages | 34-76 |
| Number of pages | 43 |
| Edition | 12 |
| DOIs | |
| Publication status | Published - 1 Jan 2019 |
Publication series
| Name | Food Chemistry, Function and Analysis |
|---|---|
| Publisher | Royal Society of Chemistry |
| Number | 12 |
| Volume | 2019-January |
| ISSN (Print) | 2398-0656 |
| ISSN (Electronic) | 2398-0664 |
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Chapter 2: Chemistry of Anthocyanins. / Pina, F.; Parola, A. J.; Melo, M. J.; Lima, J. C.; Freitas, V. de.
Steviol Glycosides: Cultivation, Processing, Analysis and Applications in Food. ed. / Marianne Su-Ling Brooks; Giovana B. Celli. 12. ed. Royal Society of Chemistry, 2019. p. 34-76 (Food Chemistry, Function and Analysis; Vol. 2019-January, No. 12).Research output: Chapter in Book/Report/Conference proceeding › Chapter
TY - CHAP
T1 - Chapter 2: Chemistry of Anthocyanins
AU - Pina, F.
AU - Parola, A. J.
AU - Melo, M. J.
AU - Lima, J. C.
AU - Freitas, V. de
N1 - info:eu-repo/grantAgreement/FCT/5876/147218/PT# This work was supported by the Associated Laboratory for Sustainable Chemistry Clean Processes and Technologies LAQV. The latter is financed by national funds from FCT/MEC (UID/QUI/50006/2013) and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007265). FCT/MEC is also acknowledged through the Projects PTDC/QEQ-QFI/ 1971/2014.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - In this chapter, the current state of knowledge regarding anthocyanin chemistry and the corresponding reversible multistate system of the chemical species is presented. Mathematical equations to account for the kinetics and thermodynamics of the multistate system of anthocyanins are presented in a simple form to allow their use by non-specialists. The calculation of all rate and equilibrium constants of malvidin-3-glucoside in diluted solutions has been carried out to illustrate the use of these expressions. The irreversible reactivity of anthocyanins in foodstuffs, particularly in wine, leading to pyranoanthocyanins of the first and second generation is discussed. The use of the relative energy level diagrams of the multistate species together with their pH-dependent mole fraction distribution is reported and their usefulness emphasized. Using the morning glory flower as an example, the expression of its blue colour is rationalized by considering the thermodynamics and kinetics of the multistate system.
AB - In this chapter, the current state of knowledge regarding anthocyanin chemistry and the corresponding reversible multistate system of the chemical species is presented. Mathematical equations to account for the kinetics and thermodynamics of the multistate system of anthocyanins are presented in a simple form to allow their use by non-specialists. The calculation of all rate and equilibrium constants of malvidin-3-glucoside in diluted solutions has been carried out to illustrate the use of these expressions. The irreversible reactivity of anthocyanins in foodstuffs, particularly in wine, leading to pyranoanthocyanins of the first and second generation is discussed. The use of the relative energy level diagrams of the multistate species together with their pH-dependent mole fraction distribution is reported and their usefulness emphasized. Using the morning glory flower as an example, the expression of its blue colour is rationalized by considering the thermodynamics and kinetics of the multistate system.
UR - http://www.scopus.com/inward/record.url?scp=85062384627&partnerID=8YFLogxK
U2 - 10.1039/9781788012614-00034
DO - 10.1039/9781788012614-00034
M3 - Chapter
T3 - Food Chemistry, Function and Analysis
SP - 34
EP - 76
BT - Steviol Glycosides: Cultivation, Processing, Analysis and Applications in Food
A2 - Brooks, Marianne Su-Ling
A2 - Celli, Giovana B.
PB - Royal Society of Chemistry
ER -