Graduate Thesis Or Dissertation
 

Interconversions of monoterpenes in peppermint

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/v692t9021

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  • The analysis of the distribution of monoterpenes through the leaf pairs of a single shoot of Mentha piperita supports Reitsema's contention that the first terpenes formed are unsaturated ketones and that saturated terpenes are produced from these. The growth of Mentha piperita under varying conditions of temperature and the leaf-by-leaf analysis of the terpene composition of the oil demonstrate effects of environmental factors on terpene formation and interconversion. Time-course studies using C¹⁴O₂ support this portion of Reitsema's scheme: pulegone yields menthone yields menthol yields menthyl acetate. A seventy-two hour time-course with alternating periods of illumination and darkness demonstrates the interconversion of terpenes in the presence or absence of light. The conversion of pulegone to menthone; menthone to menthol and menthyl acetate; and piperitenone to pulegone, menthone and piperitone has been observed in peppermint tissue using labeled terpenes as substrates.
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  • File scanned at 300 ppi using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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