Agar (/ ˈ eɪ ɡ ɑːr / or / ˈ ɑː ɡ ər /), or agar-agar, is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily from "ogonori" and "tengusa".

Agar is isolated from the algae as an amorphous and translucent product sold as powder, flakes, or bricks. Although agar is insoluble in cold water, it absorbs as much as 20 times its own weight. It dissolves readily in boiling water; a dilute solution is still liquid at 42 °C (108 °F) but solidifies at 37 °C (99 °F) into a firm gel .

Mar 18, 2024 · Whereas animal-based gelatins are made from livestock collagen (from the cartilage, bones, skin, and tendons), agar-agar is purely vegetarian, coming from the red algae plant. The two setting agents also behave differently and need to be prepared in distinct ways when incorporating into a recipe.

Agar (agar agar) or bacteriological agar is a thermoreversible gelling agent extracted from the cell walls of smaller seaweeds (red algae). Agar is obtained from red algae belonging to the genera Gracilaria, Ahnfeltia, Gelidium, and Pterocladiella.

Oct 3, 2023 · Agar is extracted from the red algae (Rhodophyceae) members Gelidium and Gracilaria. In 1859, the first time, the application of agar was recognized by West people as Chinese foodstuff. In 1982, Robert Koch identified it as …

Dec 14, 2019 · Learn more about the gelling agent and thickener – agar agar (E406), from production; composition; four types; uses in food, safety, side effects and so on.

Oct 23, 2024 · Agar is a gelatinous substance derived from red algae, primarily from species such as Gelidium and Gracilaria. It’s commonly used as a hydrocolloid in the food industry, but its role in microbiology is what truly makes it special.

Oct 20, 2021 · Agar agar is a product obtained from numerous algae, mainly of the genus Gracilaria, Gelidium and Eucheuma. All of these algae are characterized by belonging to the group of red algae.

Agar, also called agar-agar, is a natural gelatinous substance, extracted in hydrocolloid form from several species of red algae, mainly of the Gelidium and Gracilaria type.

Apr 2, 2025 · Agar is a natural ingredient with remarkable gelling properties that successfully replaces traditional gelatin. This substance, which is extracted from red seaweed, dissolves perfectly in hot water to form stable and durable gels.