Chemistry

Biology

Gas chromatography–mass spectrometry

Botany

Mass spectrometry

Gas chromatography

Shoot

Horticulture

Aroma

Food science

Chromatography

Flavour and Fragrance Journal

Systematic investigations of the volatiles of field‐grown plants and shoot cultures of Gynura bicolor have been conducted to obtain indispensable plant physiological information for propagating plants of consistent quality. Volatiles obtained by solvent‐assisted flavour evaporation (SAFE) of solvent extracts from leaves of commercial cultivars, shoot cultures and their regenerates were analysed using gas chromatography (GC), GC–mass spectrometry (GC–MS) and GC–olfactometry (GC–O). It was revealed for the first time that this plant had the following chemical characteristics: field‐grown plants, i.e. those plants commercially cultivated in three different regions of Japan and 7 month‐old regenerates of shoot cultures had almost the same GC profiles; their major components were ( E )‐caryophyllene, α‐humulene and bicyclogermacrene; in contrast, the major components of the shoot cultures were ( Z , E)‐ α‐farnesene, ( E )‐caryophyllene and α‐copaene. The biosynthetic pathways for the sesquiterpenes found in these ...

Volatiles from leaves of field‐grown plants and shoot cultures of <i>Gynura bicolor</i> DC

Volatiles from leaves of field‐grown plants and shoot cultures of Gynura bicolor DC