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This is an Open Access article distributed under the terms of the Creative Commons Attribution (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers.
The purity of proanthocyanidin fraction was determined using HPLC analysis. The amount was measured by HPLC technique. The peak proanthocyanidin fraction was observed at retention time of 8117 min.