Pepper is a spice with 473 known flavor compounds. The most distinctive molecule is pine-like-herbal. It pairs most strongly with onion, sharing 232 flavor compounds. Pepper appears in 172,374 recipes, most commonly in creole cuisine.
Compounds ranked by rarity — the higher the score, the more distinctive to this ingredient.
Of the ~226 molecules that drive perceived food aroma (Dunkel et al. 2014), Pepper's inventory contains 76. Most of the other 397 compounds are below detection threshold.
+ 64 more — showing top 12 by class and threshold.
Generalist = appears in >25% of foods (Maillard / fermentation products). Individualist = appears in <5% of foods (carries signature notes). Threshold values are in clean water — the actual perception threshold in a food matrix can differ substantially.
How Pepper's 473 known compounds break down by aroma category. Percentages are of compounds with a known label.
212 of 473 are distinctive to pepper — they appear in under 10% of foods. The remainder are the background most foods share.
Ordered by measured impact in pepper — concentration against odour threshold where both are published, then by how distinctive the molecule is across the graph. Molecules measured here but not established as odorants sit below those that are.
Ranked by median concentration across published studies. Only 6 of Pepper's 473 compounds have a measured concentration in the literature — the rest are confirmed present but not yet quantified. Bars are log-scaled.
Ranked by how often cooks actually use them together, across 453,403 recipes — the familiar answer first. Each pairing still carries its molecular score and shared-compound count; only the ORDER differs. Counts cover every characterised molecule the two ingredients have in common, not only the aroma-active ones, so they can exceed an ingredient’s aroma-compound count. For the chemistry-first view — where the surprising pairings live — see the molecular network below, the side-by-side comparison, or the Pairing Tool.
Pepper and its 10 closest compound-sharing relatives. Spoke thickness = shared compounds; circle size = that ingredient's own compound count. Drag to rearrange, scroll to zoom, click to open.
Compare Pepper side-by-side
Drawn from PubMed + Europe PMC + food-science journals. Click any title to read the full abstract on the original source.
Improving chili pepper aroma quality is essential for industry transformation and high-value development. However, the complex volatile composition and its quantitative relationshi... Read abstract →
Peppers (Capsicum spp.) contain capsaicin, an organic compound with a group of alkaloids that has shown thermoregulation properties in humans and mice, and may influence glucose an... Read abstract →
An overview of the state of the art in the extraction, isolation, and analytical determination of bioactive compounds in peppers of the genus Capsicum is presented. The review is s... Read abstract →
BACKGROUND: Yoghurt is a fermented milk of unique sensory, nutritive and dietetic value offered in a variety of types and in different flavours. Vegetables belong to the group of f... Read abstract →
UNLABELLED: In recent years, functional fabrics possessing antimicrobial activity have drawn significant interest because antibiotic resistance is becoming widespread among pathoge... Read abstract →