11th Class Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली

  • question_answer 42)
      Make a list of algae and fungi that have commercial value as source of food, chemicals, medicines and fodder.

    Answer:

                      Algae Some 70 species of marine algae are used for food, chemical and medicinal purpose.
    Medicine Chemical Food  
    Corollina-capable in curing worm infection Phycolloids It includes agar, carrageen in and funori. Porphyra (flower), Rhodymenia (pulse), Chondrus (Trishmoss). Rhodymenia (sheep's weed) is also used as fodder
    Polysiphonia-Possess antibacterial property. Alginic acid It is a phycocolloid obtained commercially from Laminaria, Macrocystis
    Carrageen an is an coagulant.
    Laminaria, Alariam Macrocystis, Sargassum are used as food in many countries.
    Sodium laminarin sulphate act as a anticoagulant. Nerocystis, Fucus, Sargassum, etc. The edible brown algae are used as fodder.
    Ascophyllum and Laminaria bears antibiotic properties. It is used as salts in obtaining emulsions (ice-creams, Ulva, Caulerpa, Enteromorpha; Chlorella can yield food rich in lipids, proteins, vitamins and minerals.        
    Durvillea has vermifuge properties. ointments, toothpastes, cosmetics, creams, etc)
    Antibiotics can be extracted from Chlorella and Caulerpa.     Chlamydomonas, Chlorella, Scenedesmus play an important role in sewage oxidation.
    Fungi The role of fungi was established in early history yeast have been used in making of bread and alcohol since, the beginning of cultivation the discovery of penicillin, that marked the beginning of a new approach to microbial diseases in human health. More recent approaches include the application of hydrophins to surfaces leading to bio compatibility of implants and to emulsion formation improving drug delivery. Products of fungi in medicine, chemical and food are
    Medicine Chemical Food
    Penicillin (Penicillium notatum and P. chyrso genum), glyotoxin. Aspergillus niger Fermentation-Aspergillus orgzae yeast-Saccharomyces roxii
    chitrinine (Trichoderma sp.) (Penicillium citrinine). Awentil and Mucor in production of citric acid. Cheese production- by Penicillium comemberti and Penicillium roqueforti
    Baccatin-A (Gibberella baccater) Aspergillus niger and P. purpurogenum in production of(gluconicacid). Colour of foods - by Monoasus purpureus    
    Ergotine (Claviceps purpurea), clavicin (Aspergillus clouertus P. glacum and A. gallomyces forms (gallic acid)  
    Flavin (A. flavous and A. fumigatles).
                  


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