Extraction Methods of Quince

Historically, the extraction of aromatic and medicinal compounds from quince (Cydonia oblonga) focused on simple manual and thermal methods. For centuries, quince seeds were macerated in water or boiled to isolate their characteristic mucilage, while the fragrant peels were often simmered or steeped in water to capture their subtle, rounded aroma. These traditional "folk methods" relied on gentle heat to avoid destroying the fruit's delicate scent, which is more complex than standard citrus oils. In some traditional culinary and medicinal practices, quince was also processed into pastes or jams, where the seeds and peels remained as secondary by-products.

Modern commercial and scientific extraction has evolved to utilize more sophisticated techniques to maximize yield and preserve bioactive compounds like polyphenols and antioxidants. While cold pressing is occasionally attempted for seed oil, it often results in very low yields, leading producers to favor solvent extraction using petroleum ether or hexane. Recent advancements include the adoption of green chemistry principles, such as supercritical CO2 extraction and ultrasound-assisted extraction (UAE), which reduce the need for organic solvents. Additionally, hydrothermal treatments like "steam explosion" in autoclaves and high-pressure carbon dioxide (HPCD) treatments are being used to process agro-industrial waste into high-value food-grade ingredients. For stabilization, modern methods frequently employ lyophilization (freeze-drying) to protect volatile components from thermal degradation during the drying process.

The Quince note gained immense recognition and popularity following the launch of Chanel’s **Chance Eau Tendre**. This fragrance, and its various flankers, utilized Quince to introduce a sophisticated, sparkling, and slightly green freshness to its opening. It moves beyond typical apple or pear notes by lending a crisp, slightly tart, and luminous quality that beautifully complements the floral heart of jasmine and hyacinth, establishing Quince as a staple in modern, elegant fruity-floral compositions.

• This use case demonstrates how Quince provides structure and longevity to the top notes, preventing them from being purely volatile citrus.

Another iconic use of Quince is found in **Burberry Brit Sheer**, where the note is employed to give the opening a delicate, bright, and mouth-watering freshness. In this composition, Quince is blended seamlessly with litchi and yuzu, providing a sweet yet crisp texture that is distinctly modern and youthful. The note is essential in lifting the overall composition, offering a gentle, ripe fruity nuance that transitions smoothly into the soft floral heart of peony and peach blossom.

• Quince’s complex profile, reminiscent of both apple and pear, allows it to harmonize with a wide range of fruit and floral pairings.

While often used in feminine compositions, Quince's green and slightly tart facets can also lend a sophisticated freshness to unisex and traditionally masculine scents. However, it is most celebrated in the elegant feminine category, notably appearing in the broader range of high-end designer fragrances aiming for a contemporary, clean, and bright fruity signature. Its inclusion signifies a move towards nuanced fruity notes that are fresh, ripe, and slightly exotic, moving away from overtly synthetic or simple fruit accords, cementing its role as a key ingredient for achieving refined luminosity in fragrances like the popular **Acqua di Parma Fico di Amalfi**, where its citron-like quality shines.

• The note has found a strong footing in niche and artisanal perfumery where its complexity is leveraged for unique openings.

The seasonality of quince is primarily defined by the autumn and winter months, with the fruit typically reaching maturity and becoming available from late September through January. In the Northern Hemisphere, the peak harvest occurs between October and December, when the fruit turns a bright golden yellow and develops its characteristic floral fragrance. While blooming occurs in late spring, usually a few days after most apple varieties, the fruit requires a long growing season to ripen. Once harvested, quinces are known for their excellent shelf life, often lasting up to two months when stored in cool, dry conditions.