Stability of anthocyanins extracted from grape skins

H. Morais, C. Ramos, E. Forgasc, T. Cserháti, N. Matos, V. Almeida, J. Oliveira

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The extractability and stability of anthocyanins from the skins of Vitis vinifera were determined at different pH values. Anthocyanins were extracted using acetone, partitioned with chloroform and pre-purified by solid-phase extraction (SPE). They were analysed by RP-HPLC, and the kinetic parameters of decomposition were calculated. The total monomeric anthocyanin content was determined by spectrophotometry Anthocianins were well separated by RP-HPLC. The efficiency of extraction depended strongly on the pH of the extracting agent and on the character of the pigment to be extracted. The amount of anthocyanins decreased with increasing duration of storage, more so at elevated temperatures.

Original languageEnglish
JournalChromatographia
Volume56
Issue numberSUPPL.
Publication statusPublished - 2002

Fingerprint

Anthocyanins
Vitis
Skin
High Pressure Liquid Chromatography
Spectrophotometry
Solid Phase Extraction
Chloroform
Acetone
Kinetic parameters
Pigments
Decomposition
Temperature

Keywords

  • Anthocyanins
  • Column liquid chromatography
  • Degradation reactions
  • Kinetic parameters

ASJC Scopus subject areas

  • Analytical Chemistry
  • Clinical Biochemistry

Cite this

Morais, H., Ramos, C., Forgasc, E., Cserháti, T., Matos, N., Almeida, V., & Oliveira, J. (2002). Stability of anthocyanins extracted from grape skins. Chromatographia, 56(SUPPL.).

Stability of anthocyanins extracted from grape skins. / Morais, H.; Ramos, C.; Forgasc, E.; Cserháti, T.; Matos, N.; Almeida, V.; Oliveira, J.

In: Chromatographia, Vol. 56, No. SUPPL., 2002.

Research output: Contribution to journalArticle

Morais, H, Ramos, C, Forgasc, E, Cserháti, T, Matos, N, Almeida, V & Oliveira, J 2002, 'Stability of anthocyanins extracted from grape skins', Chromatographia, vol. 56, no. SUPPL..
Morais H, Ramos C, Forgasc E, Cserháti T, Matos N, Almeida V et al. Stability of anthocyanins extracted from grape skins. Chromatographia. 2002;56(SUPPL.).
Morais, H. ; Ramos, C. ; Forgasc, E. ; Cserháti, T. ; Matos, N. ; Almeida, V. ; Oliveira, J. / Stability of anthocyanins extracted from grape skins. In: Chromatographia. 2002 ; Vol. 56, No. SUPPL.
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