Algae as food:
People of coastal countries example- China & Japan have long being using seaweeds and certain other algae as a source of food.
Some of the more common used are Porphyra, Ulva lactuca, Alaria, Chlorella, Chondrus chrispus, Rhodymenia, Nostoc.
- Porphyra tenera which is cultivated in Japan, they are rich in protein and carbohydrates, high concentration of vitamin A, B, C and B5 contain
- Porphyra sheets are eaten with rice.
- Nori is a Japaneese paste made from Porphyra.
- The gelatinous Carbohydrates from many red algae are used for puddings and are proceeds for ingredients of frozen desserts including ice-cream
- Floridean Starch, which is the food storage product of the rodophyta, is a glucose compound.
- Condrus chrispus is commonly called ‘I rish moss’ used in ice-creams and various other foods.
- Monostroma is used as a common food ‘aorrori’ in Japan
- Chloralla is a genus which is cultured both in pilot plenty and industrially as a possible source of food. A Chloralla carries maximum vitamins like A, B, C, D, B12 and lipid protein.
- Some of the genera used as human food are Alaria, Laminaria, Sargassum, Pelovita etc.
- The food prepared from Alaria is called ‘Sarumen’
- Nostoc commune is only used as a food called ‘yuyucho’ in China, Japan etc.
- Diatoms are also used as food in some parts of world
- Some species of Spirogyra & Oedogonium are also used as food in India
- Kelps (brown algae) are used as fodder for cattle & chopped for sheep and chickens in Great Briten.
- Macrocysts species are food source of vitamins A & E .
- Rhodymenia is used for Cattle Food in France.
- The brown algae Ascophyllum, Laminaria and Fuccus as stock feed for sheep & cattle.
- Sargassum is also used as fodder for many areas of UK & Japan.
- Diatoms form a permanent food of many aquatic animals along with some important fishes.