SUMMARY: The acetone-extractable antibacterial components of Isochrysis galbana have been resolved by paper-chromatography and bioautography. Two pigmented products with similar antibacterial properties were obtained which were tentatively identified from their absorption spectra as chlorophyll a derivatives, probably pheophytin a and an atypical chlorophyllide a.
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Bruce et al. (1967) studied this question.
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