BIO-ASSAY OF VITAMIN C IN ROSE HIPS

Abstract
Rose hips, as a dry powder to ensure uniformity of sampling, have been assayed for vitamin C, guinea pigs being used as the test animal. It is here proved by the curative growth method of Harris and Olliver and by the serum phosphatase method of Gould and Schwachman, that the values given for ascorbic acid by titration with 2, 6-dichlorophenolindophenol in rose hips are substantially correct.

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