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Ulva lactuca

Ulva lactuca

Category :

Macro-alga - Green alga - Ulvales

Natural Habitat :

Without very strict requirements, this seaweed can be found on sunlit rocks, at various depths of fairly still waters: it prefers the calm waters on the Atlantic coast, in Brittany, in the Black Sea and the Pacific Ocean.

Harvest :

Made up of translucent branches, its appearance is similar to lettuce leaves. This annual green algae uses a disc to anchor itself to rocks, shellfish and even other algae. It lives in areas rich in minerals and of low depth. On the Breton coasts, it forms immense green carpets when the tide goes out.

Appearance :

Its thallus is gathered from spring to autumn from ground uncovered during low tide, taking care to avoid the used water getting too close, as green algae has a particular aversion to nitrates.

Components :

One of its main properties is a high content of magnesium (approximately 2-3%). It has a surprising proportion of vitamins, including Vitamin A (twice as much as cabbage), anti-oxidant Vitamin E and Vitamin C (8-10 times more than oranges, it also speeds up absorption of iron). It is equally rich in calcium (10-20x more than milk), iron (10x more than spinach) and magnesium (20g fresh ulva contains the recommended daily allowance).

Biomass-Extracts-Properties :

Algae used for its hydrating and remineralising extracts.

Uses in Cooking :

Sea lettuce has been used in Japanese cuisine for thousands of years. Eaten by dietary specialists, Ulva is one of the most well-known dietary algae in Europe. For more than 10 years, it has been harvested from the coasts of Brittany and the Charentes region, and it is eaten as a marine condiment herb, integrated into traditional cooking, as much for its gastronomic appeal as for its dietary benefits.

Other Uses :

Its power is used to absorb nitrates to depollute rivers, such as the Rance in Saint-Malo, by dropping cords of sea lettuce into the water. Recovered and replace by new algae, it becomes buried under the earth.

Use :

Ocean Memory

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