ISHS Acta Horticulturae 765: XXVII International Horticultural Congress - IHC2006: International Symposium on Plants as Food and Medicine: The Utilization and Development of Horticultural Plants for Human Health
VOLATILE CONSTITUENTS OF SIX CULTIVARS OF MATURE GUAVA (PSIDIUM GUAJAVA L.) FRUITS FROM TAIWAN |
| Authors: | H.-C. Chen, M.-J. Sheu, L.-Y. Lin, C.-M. Wu |
| Keywords: | β-caryophyllene, volatile, GC, GC-MS |
| Abstract:
The chemical composition of mature fruits isolated from six different cultivars of guava (Psidium guajava L.) grown in Taiwan have been studied by headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography (GC) and gas chromatography-mass spectrometry analysis (GC-MS). A total of 35 compounds were identified, including 24 terpene hydrocarbons, 2 terpene alcohols, and minor constituents including 1 alcohol, 2 aldehydes, 3 esters, 1 terpene ester and 2 terpene oxides. Although the volatile constituents of the six cultivars were similar, with β-caryophyllene (47.74–58.28%) and aromadendrene (7.11–14.58%) as the major constituents in all cultivars, quantitative differences in the composition of some constituents were observed. P. guajava L. cv. Chan-Shan Bar contained higher percentages of 3-hexenyl acetate, 1,8-cineole, and allo-ocimene than other species. | |
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