| Full text | |
| Author(s): |
Bartoloni, Fernando H.
[1]
;
Goncalves, Leticia Christina P.
[1]
;
Rodrigues, Ana Clara B.
[1]
;
Doerr, Felipe Augusto
[2]
;
Pinto, Ernani
[2]
;
Bastos, Erick L.
[3]
Total Authors: 6
|
| Affiliation: | [1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210580 Sao Paulo - Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmaceut, Dept Anal Clin & Toxicol, BR-05508900 Sao Paulo - Brazil
[3] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | MONATSHEFTE FUR CHEMIE; v. 144, n. 4, p. 567-571, APR 2013. |
| Web of Science Citations: | 15 |
| Abstract | |
Betalains are natural antioxidant pigments responsible for the visible fluorescence of flowers. Although these compounds are almost exclusively soluble in water, they are very sensitive to both hydrolysis and water-catalyzed isomerization. We show that three representative betalains are soluble in 2,2,2-trifluoroethanol (TFE) and that the hydrolytic stability of these model compounds in hydroalcoholic solutions increases with increasing amount of TFE. Furthermore, TFE increases the fluorescence quantum yields of betaxanthins. . (AU) | |
| FAPESP's process: | 07/00684-6 - Synthesis and application of modified flower pigments |
| Grantee: | Erick Leite Bastos |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 07/59407-1 - Semi-synthetic betalains as biocompatible antioxidants and pigments |
| Grantee: | Leticia Christina Pires Gonçalves |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 10/15042-2 - Infection by Giardia lamblia: search for molecules involved in parasita-host interaction |
| Grantee: | Renata Rosito Tonelli |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 10/16082-8 - Semisynthesis of functional betalains |
| Grantee: | Fernando Heering Bartoloni |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 11/23036-5 - Floral betalamic pigments: fluorescence and antiradical capacity |
| Grantee: | Erick Leite Bastos |
| Support Opportunities: | Regular Research Grants |