Extraction Methods of Sesame

The extraction of sesame oil encompasses traditional manual techniques and advanced industrial processes. Historically, the most prominent method is the "water substitution" or "small mill" method, used for centuries in Asia. This involves grinding roasted sesame seeds with a stone mill into a thick paste, then adding boiling water and vibrating the mixture to allow the oil to rise to the surface for collection. Another ancient technique is the Ghani process, which utilizes a mortar-and-pestle arrangement—traditionally powered by animals—to mechanically crush the seeds and squeeze out the oil.

In modern commercial production, mechanical pressing and solvent extraction are the standard. Mechanical pressing involves using screw or hydraulic presses to physically expel oil; cold pressing (at temperatures below 50°C to 60°C) is preferred for high-quality gourmet oils to preserve nutrients and aroma, while hot pressing increases yield. For large-scale recovery, solvent extraction using n-hexane is often applied to the residual oil cake to retrieve nearly all remaining oil. Recent technological advancements have introduced greener alternatives, such as supercritical CO2 extraction, which uses pressurized carbon dioxide to capture delicate aromatic compounds without toxic residues, and aqueous enzymatic extraction, which uses enzymes to rupture cell walls and release oil droplets more efficiently.

Sesame, as a gourmet and slightly savory note, provides unique warmth and depth to fragrances, especially in modern gourmand and oriental compositions. Two notable examples that utilize sesame's rich character are **Ambre Narguilé** by Hermès and **L'Interdit Eau de Parfum Intense** by Givenchy. In **Ambre Narguilé**, the nutty, toasted facet of sesame complements the rich amber, honey, and spice structure, enhancing the comforting, warm sensation of the fragrance.

The contemporary use of sesame often emphasizes its exotic, nutty sweetness, moving beyond traditional structures to create unique scent narratives. **L'Interdit Eau de Parfum Intense** highlights this, where the inclusion of sesame adds an unexpected, almost caramelized depth that contrasts with the white floral notes, giving the fragrance a velvety texture and an undeniable signature. Other modern niche fragrances, such as **Kedu** by Memo, leverage sesame's profile to add complexity and an earthy, textural feel to the composition.

In addition to these, several other sophisticated scents have incorporated the sesame note to achieve a subtle, complex gourmand touch. Perfumes like **Désert Suave** by Liquides Imaginaires and **Pour La Fin Du Monde** by État Libre d'Orange use the sesame note to bridge savory elements with sweeter, oriental bases, lending a refined, roasted, and comforting quality that appeals to those seeking unique depth in their fragrance choice.

Sesame is a warm-season annual crop that thrives in tropical and subtropical climates, requiring a long frost-free growing season of approximately 90 to 150 days. Cultivation typically begins in late spring or early summer, such as mid-May to early June, once soil temperatures consistently reach at least 70°F (21°C), as cool conditions can inhibit germination and retard growth. The plant exhibits an indeterminate growth habit, with flowering generally commencing 30 to 45 days after planting and continuing through mid- to late summer. As the season progresses, seed capsules ripen from the base of the stem upwards, with harvest usually occurring in early autumn, around September or October, before the arrival of the first frost. While the plant is notably drought-tolerant and favors dry conditions during its ripening phase, it requires adequate moisture for establishment, making its life cycle closely tied to the heat and light levels of the peak summer months.