Study on extraction conditions of water-soluble substances: Purity test (4) for polyvinylpolypyrrolidone listed in Japan's specifications and standards for food additives

Yanagi, T. . Tama Laboratory; Matsumoto, M.; Shimizu, S.; Iwamura, T.; Ogaki, M.

Study on extraction conditions of water-soluble substances: Purity test (4) for polyvinylpolypyrrolidone listed in Japan's specifications and standards for food additives

2015

Yanagi, T. (Japan Food Research Laboratories, Tama-shi, Tokyo (Japan). Tama Laboratory) | Matsumoto, M. | Shimizu, S. | Iwamura, T. | Ogaki, M.

The food additive polyvinylpolypyrrolidone is approved for use as a filter aid. The water-soluble substances test of polyvinylpolypyrrolidone often shows poor reproducibility. The instruction 'boil gently while stirring using a stirrer' was considered critical, and so this issue was examined. The results showed that the use of a combination of both an oil bath and a stirrer provided good reproducibility without decomposition or other problems.

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