Abstract
1. The plant material ofFucus vesiculosus has been treated with metallic sodium in liquid ammonia. The total yield of products extractable by ether was 1.1%. 2. In the products of the decomposition of the lignin ofFucus vesiculosus 12 phenols and acids have been identified by paper chromatography and gas-liquid chromatography and it has thereby been established that the lignin of algae consists of p-coumaryl, guaiacyl, and syringyl structural units. 3. The composition of the decomposition products confirms the hypothesis expressed previously that the brown algaFucus vesiculosus contains lignin.
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