Phenolic Acids in Berries, Fruits, and Beverages

Pirjo Mattila,*† Jarkko Hellström,† and Riitta Törrönen‡
MTT Agrifood Research Finland, Biotechnology and Food Research, ET-talo, FIN-31600 Jokioinen, Finland, and Food and Health Research Centre, Department of Clinical Nutrition, University of Kuopio, P.O. Box 1627, FIN-70211 Kuopio, Finland
J. Agric. Food Chem., 2006, 54 (19), pp 7193–7199
DOI: 10.1021/jf0615247
Publication Date (Web): August 23, 2006
Copyright © 2006 American Chemical Society
*

 To whom correspondence should be addressed. Tel:  +358 3 41883235. Fax:  +358 3 41883244. E-mail:  pirjo.mattila@mtt.fi.

,
†

 MTT Agrifood Research Finland, Biotechnology and Food Research.

,
‡

 University of Kuopio.

Abstract

The contents of soluble and total phenolic acids were analyzed in samples of 29 berries and berry products, 24 fruits and fruit peels, and 12 beverages. Variation of phenolic acids in berries was also studied. Soluble phenolic acids were extracted with methanolic acetic acid, and a tentative quantification was performed by high-performance liquid chromatography (HPLC). The total phenolic acid content was determined by HPLC after alkaline and acid hydrolyses. The content of total phenolic acids as aglycones in the above samples varied from 0 (pear cider) to 103 mg/100 g fresh weight (rowanberry). Besides rowanberry, the best phenolic acid sources among berries were chokeberry (96 mg/100 g), blueberry (85 mg/100 g), sweet rowanberry (75 mg/100 g), and saskatoon berry (59 mg/100 g). Among fruits, the highest contents (28 mg/100 g) were determined in dark plum, cherry, and one apple variety (Valkea Kuulas). Coffee (97 mg/100 g) as well as green and black teas (30−36 mg/100 g) were the best sources among beverages. Caffeic acid dominated in all of these samples except in tea brews. Variation in the phenolic acid contents of the berries was either small or moderate.

Keywords: phenolic acids; berries; fruits; beverages

View: Full Text HTML | Hi-Res PDF

Tools

History

  • Published In Issue September 20, 2006
  • Received for review May 31, 2006. Revised manuscript received July 18, 2006. Accepted July 20, 2006. The study was funded by the Ministry of Agriculture and Forestry of Finland and partly by the Regional Council of South Karelia, Interreg III A South-East Finland-Russia programme.

Recommend & Share

Related Content

Other ACS content by these authors: