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Content and mean polymerization degree of procyanidins in extracts obtained from clear and cloudy apple juices.
Biotechnol J. 2008 Feb; 3(2):234-43.BJ

Abstract

The polyphenol profile of apples and that of technologically differently treated apple juices has already been studied thoroughly; nevertheless, the content of polymeric procyanidins has not received much attention up to date. Therefore, procyanidins in extracts made from six blended apple juices and two authentic clear as well as cloudy apple juices (Malus domestica cv. Bohnapfel and Bittenfelder) were investigated. Our determinations revealed significant differences in the total procyanidin content between apple juice extracts obtained from clear and the corresponding cloudy juices under study. Depending on the apple cultivars used average amounts of total procyanidin content determined in the extracts made from clear and cloudy juices ranged from 28.4 +/- 4.4% to 49.0 +/- 5.7% and from 48.3 +/- 0.3% to 60.6 +/- 0.3%, respectively. As the mean degree of polymerization (DPm) is supposed to have an influence on bioavailability and toxicity on different cells lines used in in vitro systems, the average degree of polymerization of the juices under examination were determined. Depending on the cultivar used and the technology of juice processing the DPm ranged between 3.0 and 13.4.

Authors+Show Affiliations

Chair of Food Chemistry, University of Würzburg, Würzburg, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18098119

Citation

Huemmer, Wolfgang, et al. "Content and Mean Polymerization Degree of Procyanidins in Extracts Obtained From Clear and Cloudy Apple Juices." Biotechnology Journal, vol. 3, no. 2, 2008, pp. 234-43.
Huemmer W, Dietrich H, Will F, et al. Content and mean polymerization degree of procyanidins in extracts obtained from clear and cloudy apple juices. Biotechnol J. 2008;3(2):234-43.
Huemmer, W., Dietrich, H., Will, F., Schreier, P., & Richling, E. (2008). Content and mean polymerization degree of procyanidins in extracts obtained from clear and cloudy apple juices. Biotechnology Journal, 3(2), 234-43.
Huemmer W, et al. Content and Mean Polymerization Degree of Procyanidins in Extracts Obtained From Clear and Cloudy Apple Juices. Biotechnol J. 2008;3(2):234-43. PubMed PMID: 18098119.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Content and mean polymerization degree of procyanidins in extracts obtained from clear and cloudy apple juices. AU - Huemmer,Wolfgang, AU - Dietrich,Helmut, AU - Will,Frank, AU - Schreier,Peter, AU - Richling,Elke, PY - 2007/12/22/pubmed PY - 2008/3/28/medline PY - 2007/12/22/entrez SP - 234 EP - 43 JF - Biotechnology journal JO - Biotechnol J VL - 3 IS - 2 N2 - The polyphenol profile of apples and that of technologically differently treated apple juices has already been studied thoroughly; nevertheless, the content of polymeric procyanidins has not received much attention up to date. Therefore, procyanidins in extracts made from six blended apple juices and two authentic clear as well as cloudy apple juices (Malus domestica cv. Bohnapfel and Bittenfelder) were investigated. Our determinations revealed significant differences in the total procyanidin content between apple juice extracts obtained from clear and the corresponding cloudy juices under study. Depending on the apple cultivars used average amounts of total procyanidin content determined in the extracts made from clear and cloudy juices ranged from 28.4 +/- 4.4% to 49.0 +/- 5.7% and from 48.3 +/- 0.3% to 60.6 +/- 0.3%, respectively. As the mean degree of polymerization (DPm) is supposed to have an influence on bioavailability and toxicity on different cells lines used in in vitro systems, the average degree of polymerization of the juices under examination were determined. Depending on the cultivar used and the technology of juice processing the DPm ranged between 3.0 and 13.4. SN - 1860-7314 UR - https://www.unboundmedicine.com/medline/citation/18098119/Content_and_mean_polymerization_degree_of_procyanidins_in_extracts_obtained_from_clear_and_cloudy_apple_juices_ L2 - https://doi.org/10.1002/biot.200700116 DB - PRIME DP - Unbound Medicine ER -