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Oligomeric proanthocyanidins: naturally occurring O-heterocycles
Daneel Ferreira1, Desmond Slade
1National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, University 38677, USA. dferreir@olemiss.edu
Natural Product Reports
|November 15, 2002
Summary
This review summarizes flavan-3-ols and proanthocyanidins, detailing their structures, synthesis, and analysis. It explores their impact on human health and nutrition based on recent scientific literature.
Area of Science:
- Natural Products Chemistry
- Food Science and Nutrition
Background:
- Flavan-3-ols, including catechins, and various types of proanthocyanidins are key plant polyphenols.
- These compounds have diverse structures, ranging from simple flavan-3-ols to complex A-type and B-type proanthocyanidins.
Purpose of the Study:
- To review recent advancements in the field of flavan-3-ols and proanthocyanidins.
- To cover new findings on structure elucidation, synthesis, and analytical methods.
- To discuss the nutritional and health effects of these compounds.
Main Methods:
- Literature review of scientific publications from January 1999 to December 2001.
- Analysis of newly isolated proanthocyanidins.
- Structure elucidation using advanced analytical techniques like HPLC/MS and NMR.
Main Results:
- Detailed reporting on the synthesis and structural characterization of various proanthocyanidins.
- Presentation of HPLC/MS and NMR/conformational analysis data.
- Summary of the reported effects of proanthocyanidins on human nutrition and health.
Conclusions:
- The review highlights significant progress in understanding flavan-3-ols and proanthocyanidins.
- It underscores the importance of these compounds in human health and nutrition.
- The cited literature provides a comprehensive overview of the field during the review period.