Abstract
Supercritical carbon dioxide extraction of raw cashew nut shells yielded 18.7% by weight phenolic lipids in 17.5 h. Composition of the cashew nut shell liquid (CNSL) thus obtained was quantitatively analyzed using high-performance reversed-phase liquid chromatography. The analytical data were compared with those of solvent-extracted CNSL from India (both raw cashew nuts and steam-processed cashew nuts), Brazil, Kenya, and Mozambique. Indian CNSL is richer (by about 10%) in anacardic acids, and extraction by supercritical carbon dioxide yields a better quality product. Steam-processed cashew nut shells retain about 80% of the anacardic acids.
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