A chemical marker is not automatically a causal odorant. Neither these thresholds nor the source of pepper aroma can be assigned to bourbon without whiskey-specific evidence. Consumer preference is distinct from intensity. Fresh September28: Figure2 PDF14 cluster percentages total104%; about20% nondetection describes the tested panel, not a population estimate.
Shiraz investigation, analytical isolation, sensory thresholds and a 104-consumer study; key passages PDF13–15. Grapeskin localization and extraction are discussed through PDF17.
Rotundone was identified as a contributor to pepper aroma after the correlated marker alpha-ylangene failed to explain that aroma. Reported detection thresholds differed between water (8 ng/L) and red wine (16 ng/L); about one-fifth of panelists could not detect the compound even at much higher concentrations. Consumer testing produced distinct liking clusters rather than a universal preference for more pepper.
19
9
Chapter 1; PDF-page numbering
September28: full chapter freshly read and relevant figures/tables inspected. Paraphrase remains a bounded source representation; new numerical/method qualifications added. PDF locators retained.
No access
Evidence
Rotundone was identified as a contributor to pepper aroma after the correlated marker alpha-ylangene failed to explain that aroma. Reported detection thresholds differed between water (8 ng/L) and red wine (16 ng/L); about one-fifth of panelists could not detect the compound even at much higher concentrations. Consumer testing produced distinct liking clusters rather than a universal preference for more pepper.
Location and context
M. J. Herderich et al.. Chapter1, supplied PDF9–19.
Shiraz investigation, analytical isolation, sensory thresholds and a 104-consumer study; key passages PDF13–15. Grapeskin localization and extraction are discussed through PDF17.
Annotation
A chemical marker is not automatically a causal odorant. Neither these thresholds nor the source of pepper aroma can be assigned to bourbon without whiskey-specific evidence. Consumer preference is distinct from intensity.
Fresh September 28 qualification: Figure2 PDF14 cluster percentages total104%; about20% nondetection describes the tested panel, not a population estimate.
Verification checklist
The requested database template did not populate this page after repeated checks; its verified section structure has been filled directly.