1. Extraction of flavours and fragrances with compressed CO2;Moyler,1993
2. Extraction of essential oil of black pepper with liquid carbon dioxide;Ferreira;J. Food Eng.,1993
3. Extraction of clove essential oil with liquid carbon dioxide;Germer,1988
4. Ervas Condimentares e Especiarias;Giacometti,1989
5. Common Fragrance and Flavor Materials: Preparation, Properties and Uses;Bauer,1985