What type of algae is gracilaria?

What type of algae is gracilaria?

red algae
Gracilaria is a genus of red algae (Rhodophyta) notable for its economic importance as an agarophyte, as well as its use as a food for humans and various species of shellfish.

Is gracilaria a green algae?

glomerata is a reticulated filamentous green alga (Cladophorales) that methanol extracts and purified fractions showed antimicrobial activity against MDR A. baumannii.

Is gracilaria brown algae?

Among them, Gracilaria, a genus of red algae, is a most promising source as a functioning feed additive and the most studied red seaweed species in aquaculture.

What is seaweed used for?

The present uses of seaweeds at present are as human foods, cosmetics, fertilisers, and for the extraction of industrial gums and chemicals. They have the potential to be used as a source of long- and short-chain chemicals with medicinal and industrial uses.

What color is Gracilaria?

Natural populations of Gracilaria have three color variants with different pigmentations: green, red, and brown.

What is meant by Gracilaria?

Gracilaria is a genus of red algae notable for its economic importance as an agarophyte, as well as its use as a food for humans and various species of shellfish. Various species within the genus are cultivated among Asia, South America, Africa and Oceania.

What is Gracilaria sea moss?

Sea moss (Genus Gracilaria) Genus Gracilaria is one of the most commonly recognized sea moss out there. However, some people tend to confuse it with Irish moss, when in fact, it does not grow anywhere near Ireland.

Where is Gracilaria found?

Gracilaria is widely distributed all over the world, but most of the species are reported to be from subtropical and tropical waters. Major Gracilaria-producing countries are by far, according to 2004 FAO data, Chile and China, followed by Taiwan, South Africa, Namibia, the Philippines, and Vietnam.

Are Gracilaria unicellular or multicellular?

multicellular algae
Anabaena is Cyanobacteria, Laminaria, Sargassum, Gelidium, Gracilaria are multicellular algae. Volvox is unicellular colonial algae.

What is Gelidium and Gracilaria?

The genera Gracilaria and Gelidium are the dominant industrial seaweeds for agar extraction. Gelidium species were the original materials used in Japan, but shortages during World War II led to the employment of Gracilaria species, to counteract the lack of Gelidium.

Is seaweed an algae?

“Seaweed” is the common name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies.

Where can I find Gracilaria Rhodophyta marine algae?

Gracilaria Greville genus (Gracilariales, Rhodophyta) is a macroalgae group with more than 300 species of which 160 have been accepted taxonomically. These are usually red, green or greenish brown with a three-phase cycle and can be found in tropical and subtropical seas [36,37].

How many species of Gracilaria are there in the world?

The genus Gracilaria was established by Greville in 1830 and is the third largest genus in the red algal group with over 150 species worldwide. Nearly 28 species of Gracilaria have been reported from the Indian coast ( Sahoo et al., 2001 ).

What kind of water does Gracilaria grow in?

Gracilaria can grow in a wide range of salinities from 5 to 34 ppt, which makes it a common seaweed of brackish water, mangrove swamps, and the sea. Gracilaria is mainly cultivated and harvested for agar production, currently providing more than 50% of the world’s supply of agar.

What kind of agar can you get from Gracilaria?

Gracilaria normally considered as a food and sugar reactive grade agar but agar from many Gracilaria species can be improved by alkali treatment converting l -galactose-6-sulfate into 3,6-anhydro- l -galactose ( Duckworth et al., 1971; Friedlander, 1981; Nelson et al., 1983; Craigie et al., 1984; Andriamantoanina et al., 2007 ). Figure 3.22.