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An assay method based on the use of specific oxidases has been used to search for D‐amino acids in the organs of Octopus vulgaris . A high concentration of D‐aspartate has been detected in the central brain and in the optic lobes but not in non‐nervous organs. Other D‐amino acids appear to be absent from brain and from other tissues.
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D’Aniello et al. (1977) studied this question.
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