Thermal degradation of major gomphrenin pigments in the fruit juice of Basella alba L. (Malabar spinach)
Authors:
- Agnieszka Kumorkiewicz,
- Sławomir Wybraniec
Abstract
Generation of decarboxylated and dehydrogenated gomphrenins during heating of Basella alba L. fruit juice containing high levels of betacyanin pigments was monitored by LC-DAD-ESI-MS/MS. The presence of principal decarboxylation products, 2-, 17-, and 2,17-decarboxy-gomphrenins, their diastereomers, as well as minor levels of their dehydrogenated derivatives are reported. In addition, determination of molecular masses of decarboxylated gomphrenins by high-resolution mass spectrometry (LCMS-IT-TOF) was performed. Enzymatic deglucosylation of decarboxylated and dehydrogenated gomphrenins resulted in the generation of betanidin diagnostic derivatives for further identification processes. In addition, experiments were conducted to prove that the position of glucosylation of the chromophoric part of betacyanins (betanidin part) has decisive influence on different chromatographic properties of their decarboxylated derivatives.
- Record ID
- CUT94e22968005f47f681673f74c9f630ad
- Publication categories
- ;
- Author
- Journal series
- Journal of Agricultural and Food Chemistry, ISSN 0021-8561, e-ISSN 1520-5118
- Issue year
- 2017
- Vol
- 65
- No
- 34
- Pages
- 7500-7508
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 7507-7508; Bibliografia (liczba pozycji) - 36; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 65, Iss. 34
- Keywords in English
- Basella alba, Malabar spinach, betacyanins, betalains, betanidin, decarboxylated and dehydrogenated gomphrenins, plant pigments
- DOI
- DOI:10.1021/acs.jafc.7b02357 Opening in a new tab
- URL
- http://pubs.acs.org.acs.han.biblos.pk.edu.pl/doi/abs/%2010.1021%2Facs.jafc.7b02357 Opening in a new tab
- Related project
- Badania mechanizmu utleniania pigmentów betacyjanin. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- Score (nominal)
- 45
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT94e22968005f47f681673f74c9f630ad/
- URN
urn:pkr-prod:CUT94e22968005f47f681673f74c9f630ad
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.