Terminology Botany: the science of plants Taxonomy: classification of plants.
PLANTS AND HUMAN WELFARE LOWER PLANTS AS FOOD ALGAE SERIES REFERENCES Economic Botany –...
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Transcript of PLANTS AND HUMAN WELFARE LOWER PLANTS AS FOOD ALGAE SERIES REFERENCES Economic Botany –...
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PLANTS AND HUMAN WELFARE
LOWER PLANTS AS FOOD
ALGAE SERIES
REFERENCES
Economic Botany – B.P.Pandey.www.Google. co.in
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USE OF LOWER PLANTS AS FOOD
The plants have the chlorophyll pigments and they have capacity to prepare their own food.
These autotrophs have the property of capturing inexhaustible energy of sun to synthetic organic compound which are vital for the existence of all life on earth.
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ALGAE AS FOOD
From the earliest times several sea weeds have been used as direct source of food to human beings.
High mineral elements important in human and animal physiology are found and makes sea weeds a unique supplement for a well balanced diet.
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ALGAE AS FOOD
The sea weeds are the richest source of vitamins i.e vitamin A, B and E are found in abundance in sea weeds.
Several important food stuffs prepared by algae are suimono, mitus and dulse etc,
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Pelagophycus phora
Kelp
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chondrus crispus - Irish mossChara
Caulerpa
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Nostoc
Codium
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Halophila spinulosa
Macrocystis pyrifera
Hydrodictyon
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FOOD FOR SEA ANIMALS AND FISHES
The algae are used as a direct source of food by several sea animals and fishes
The marine algae are rich in iodine and several other important minerals.
This make the fundamental source of food for all marine animals and in this respect sea is the richest food producing area.
Marine planktonic diatoms together with Dinoflagellate are of fundamental biological importance since all life of sea is dependent upon them.
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USE OF ALGAE AS FOOD
Since algae are rich in Vitamins and minerals, they form the most important part of the diet of Japan and China.
In our country a few species of Spirogyra and Oedogonium are utilized as food in South India
Japan tops the list in using algae as food and they prepare several sea weeds preparations such as Suimono, Mitsu, Dulse, Laver or Nori.
Other countries like Malaya, Indonesia, Burma and Thailand the sea weeds are used as food.
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USE OF ALGAE AS FOOD
Spirulina as food source of protein
The two edible species spirulina which is being domesticated and utilized as food supplement are S. maxima and S. platensisSpirulina is reported to have 60% protein content which is superior to meat, milk, egg and soybeanIt is a fine blend of vitamins, complex containing Beta
carotene and B1,B2,B6, C and E and B12.It contains 5-6 % essential fatty acids and more gamma linolenic acid GLA. Minerals include Selenium, manganese, zinc, copper, iron
and chromium.
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SPIRULINA AND ITS PRODUCTS
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ALGAE AS AGAR
Agar is a powder obtained from the plant body of marine algae such as Gelidium, Sarconema, Hypnea and Gracilaria
Agar agar is used in the preparation of ice creams, jellies, desserts, in sizing the textiles and clearing many liquids It is also used in preparing shaving cream, cosmetics and shoe polishes.In Biological laboratories it is used as artificial media.
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Red algae used for agar preparation
Fresh water algae
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Porphyra perforata
Gelidium pulchrum (red algae)
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Agar powder
Caulerpa sps.Algae in fresh water
Agar agar packets
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MINERAL CONTENTSPotassium, sodium and chloride salts are found in the sea weeds.
Iodine surpasses mineral iodine in drinking water and iodized table salt.
Minerals are important in human metabolism and all of them are present as the trace
elements of sea weeds.
Copper content was found in Sarconema and Acanthophora spicigera.
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ALGAE AS SOURCE OF VITAMINS
Vitamin B is found in great abundance in almost all phaeophyceae group of sea weeds.
Vitamin B12 content is higher in green and red algae
Chlorella contains thiamin, riboflavin, niacin, pyridoxine, pantothenic acid , choline,
biotin, vitamin B 12 and lipoic acid.
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Chlorella
Volvox
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ALGAE AS SOURCE OF VITAMINS
Vitamin B is rich in Ulva poryphyra and Vitamin C is rich in Alaria validaDiatom Nitzschia is rich in Vitamin A that is found in liver oils of many fish
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USE OF SEAWEEDS AS FERTILIZERS
Macrocystis and Nereocystis posses 80% of potash in their dry weight.
Sea weeds are a store house of the important potash, ionic sulphate , trace elements and growth substances.
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USE OF ALGAE AS FODDER FOR HENS AND MILK CATTLE
Cattle foods can be prepared from seaweeds from the brown algae and the processed food is fed to cattle poultry and even pigs.
The iodine quantity of the milk and eggs may sufficiently increased.
Milk yielding and egg laying capaciy of cattle and poultry will also be enhanced.
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