1. Trivial name: delta-Cadinene.
2. It’s mainly derived from flue-cured tobacco, burley tobacco and flavoured tobacco, it has a strong aroma and a good fixing effect, suitable for perfume, cosmetics, can also be used in wine, cigarettes, and toothpaste.
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Exudates are involved in the defense mechanism of trees; they could work against insects or microorganisms through a phys. or chem. system. The main components of exudates are terpenoids. This study identified the main compounds of exudates from 13 conifers of Taiwan using gas chromatogram-mass spectrometry (GC-MS) and spectroscopic anal. The results revealed that the main volatiles were ¦Á-pinene, ¦Â-ocimene, ¦Â-pinene, sabinene, and caryophyllene. On the other hand, the main nonvolatile compounds were diterpenoids, which were classified into three skeletons (abietane-, labdane-, and pimarane-types). Among these, abietane-type presented in Pinaceae and in most of Cupressaceae; labdane-type presented in Pinaceae and in all of Cupressaceae and Araucariaceae; pimarane-type existed in both Pinaceae and Cupressaceae. Furthermore, the epigenetics of conifers anal. results by GC-MS and heteronuclear single quantum coherence (HSQC) of NMR (NMR) fingerprints were similar to traditional taxonomy classification; it indicated that exudates chemotaxonomy by using GC-MS and HSQC profiling is a useful technol. to classify the conifers. Besides, the exudates of Pinus elliottii, Pinus taiwanensis, Calocedrus macrolepis and Chamaecyparis formosensis possessed the strong antifungal activity. For white-rot fungus, Trametes versicolor, Pinus morrisonicola, Chamaecyparis obtusa, and Araucaria heterophylla exhibited the higher antifungal index. For brown-rot fungus, Laetiporus sulfureus, Pinus elliottii, Pinus morrisonicola, and Chamaecyparis formosensis revealed a good antifungal activity.
Composition analysis of exudates produced by conifers grown in Taiwan and their antifungal activity. Recommended basis is Cadinene. Products is: https://www.ambeed.com/products/189165-77-3.html, 51905-84-1
Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem