Aroma Orbit is an interactive artwork in which black and white sesame become two living fields of matter, motion and energy. Visitors do not simply observe the composition—they disturb it. Dragging produces vortices, touch draws particles inward, tapping releases waves of roast energy, and pinching collapses the boundary between the two seed identities. The work begins as an abstract visual encounter, then gradually reveals the sensory science beneath it: flavour emerging through the interaction of material, heat, aroma, threshold and human perception.
Black and white sesame are not merely the same seed presented in different colours. They represent distinct seed-coat types or cultivars and are often encountered in different commercial forms: black sesame commonly remains hull-on, while pale or white sesame is frequently hulled. These differences create sensory tendencies rather than fixed rules. Black sesame often appears earthier, huskier, darker and slightly more bitter-edged; white sesame often appears cleaner, sweeter, creamier and more delicate. As roast energy increases, both identities move through green, cereal, nutty, caramel, bread-crust, coffee and smoky territories—allowing the visitor to explore where they separate, overlap and transform.
COLOUR IS ONE VARIABLE.ROAST IS ANOTHER.
A focused two-part artwork: first compare black and white sesame under matched processing; then follow the roast chemistry from raw-green seed to nutty complexity and, eventually, smoke and char.
Compare the seeds without confusing colour and process.
Select unroasted seed, an equivalent roast, or a matched fine paste. The mirrored bars are directional sensory indices—not laboratory measurements. Their purpose is to make the likely emphasis visible while keeping the critical controls explicit.
Matched whole-seed form · unroasted
Quiet seed aroma with more earth, husk dryness and gentle bitterness. Chewing gradually releases oil, but the dark seed may feel austere before roasting.
Mild green seed, soft cereal and a faint sweet-nut impression. The finish is generally cleaner and less visually primed for intensity.
Matched roast treatment · whole seed
Assertive roasted seed, coffee-like darkness, earth and a slightly more bitter, dry hull-led finish.
Round toasted nut, cereal, light caramel and a cleaner finish. It often reads sweeter even at the same sugar level.
Matched roast + particle size · fine paste
Dense, graphite-coloured paste with cocoa-coffee associations, long roasted persistence and a more obvious bitter-earth counterpoint.
Creamy tahini-like paste with round nut, cereal and perceived sweetness. The lighter profile exposes rancidity sooner.
Follow the aroma from hexanal to smoke.
Choose a temperature lens from 140–200°C. These curves are a conceptual synthesis of published sesame roast work and flavourist interpretation. Actual development depends on time, moisture, seed lot, equipment and whether the sample is whole seed, paste or oil.
Raw-green and restrained.
Hexanal-led green and raw-seed cues remain visible. The profile lacks the pyrazine density expected from a fully roasted sesame paste.
First toasted lift.
Roast begins to open, but the profile remains light and cereal-like. Useful when sesame must sit behind tea, fruit or delicate dairy.
Balanced toasted sesame.
Nutty and cereal notes become legible without much smoke. This is a strong route for delicate dairy, bakery and white-chocolate applications.
Full roast with sweetness.
Pyrazines, furans and related thermal notes create roasted nut, bread crust and caramel depth while bitterness remains controlled.
Peak roast complexity.
One published paste study reported its highest odour activity and liking around this region. Treat that as a study-specific optimum—not a universal set point.
Dark roast enters the danger zone.
Smoke and bitterness rise faster than sweetness. This can support coffee, cocoa or savoury sauce, but it suppresses delicate identity.
Burnt becomes the headline.
Phenolic smoke, char and bitterness dominate. A small fraction may add depth; as a full profile it risks ash and low repeat appeal.
One roast sequence, several aroma families.
The scientific story is not “black chemistry versus white chemistry.” Roasting moves both through broadly shared thermal families. Seed type, hull, origin and processing then change the balance and sensory interpretation.
HexanalGreen / raw-seed marker
Most visible in unroasted or cold-pressed material. It can imply freshness, but excess reads under-roasted, grassy or oxidized.
AlkylpyrazinesRoasted nut / cereal spine
The central authority of roasted sesame: nut, cereal, popcorn, cocoa and coffee-like impressions. Too much becomes dry and generic.
2-AcetylpyrroleBread crust / popcorn warmth
Connects sharp roast to edible body: toasted nut, bread crust and warm cereal. Especially useful for bakery translation.
Furfural + related furansCaramel / almond bridge
Round pyrazine dryness with baked-sugar, almond and caramel associations. They help roast feel sweet-smelling rather than austere.
Furanone familySweet brown halo
Adds caramel-like softness and edible warmth. Hull-aroma studies also point to furanone contributions across roast conditions.
4-Vinylguaiacol / smoky phenolsSmoke / burnt contrast
Low levels add dark-roast authority. Dominant levels move quickly toward char, ash and medicinal dryness.
A full field of seeds—every seed can move.
The image is now completely populated with live black and pale sesame seeds. Scroll over the field to stir it, click or tap to push seeds away from your touch, and drag through the image to carve paths. Pattern controls reorganize the same seeds into waves, spirals, a mixed mosaic or the original 50 / 50 split.
The boundary is temporary. The starting image separates black and white sesame cleanly, but scrolling, tapping and drawing progressively mix the field. This mirrors the conceptual lesson of the larger artwork: colour and hull can remain visible, while processing and movement reshape the overall pattern.
All 1,100 seeds are individual SVG objects. Pattern presets, wheel input, taps and pointer movement update their positions rather than swapping in a static image.
