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seaweed

  1. 1. GROUP MEMBERS PRESENTATION
  2. 2. SINESIS 6 ANKITA ROY 2020349 AHAN MARICK 2020417 BIPLAB SAHA 2020419 SOUVIK KUMAR SAHA 2020395 SHREYA NASKAR 2020429 SHREYA NASKAR 2020431
  3. 3. :INTRODUCTION: What is Seaweed?  Seaweed, or algae belongs to a group of plant-like organisms that grows in the Sea.  Seaweed is a part of healthy diet and as herbal medicines in many traditional cultures.  Seaweeds are abundant in coastal areas of Bicol Region.  The life of seaweed industry is primarily dependent on the demands for the products.  Farming seaweeds can be boosted by the processing/manufacturing industry.  Seaweeds are one of the most nutritionally dense foods in the plant kingdom  Seaweeds are particularly known for their large amounts of bioavailable minerals like iodine, iron & calcium
  4. 4. STRUCTURE OF SEAWEED  Wide range of growth forms and complexity of structures  The complete body is known as thallus  Can be filamented, a thin leafy sheet, or giant kelp  The leaf-like flattened portions of the thallus are blades SEAWEED REPRODUCTIVE STUCTURES: MICROSCOPIC IMAGES OF MALE AND FEMALE CONCEPTACLES IN Fucus vesiculosis RECEPTACLES
  5. 5. FIG: SEAWEED FAMILY TREE SEAWEED Undaria pinnatifida
  6. 6. CLASSIFICATION SEAWEED RED ALGAE • All species are multicellular • They live in marine environment • They live attached to rocks by a structure called a holdfast • Some species incorporate calcium carbonate from the ocean into their cell walls as well • Their cell walls contain thick polysaccharides GREEN ALGAE • All species are unicellular as well as multicellular. • They live mostly in freshwater. • They are cosmopolitan in distribution. • Cell wall has two layers. Outer layer composed of pectose and inner layer composed of cellulose. • They possesses chlorophyll a, chlorophyll b and small number of β-carotenoids. BLUE GREEN ALGAE • They include unicellular and colonial form • Colonies form filaments, sheets, hollow balls. • Filaments differentiate into vegetative cells, heterocysts and resistant spores. • Heterocyst is the site of Nitrogen fixation • Nitrate and Ammonia absorbed by plants. BROWN ALGAE • The majority are live in marine environments,on rocks in cool water. • They contain chlorophyll as well as a yellow-brown carotenoid called fucoxanthin. • The largest of the brown algae are the kelp. • The body of a kelp is called a thhalus, which can grow as long as 180 ft. • They store their foods and laminarin.
  7. 7. FIG: INDIAN RESOURCES AND SCENARIO FIG: CURRENT STATUS OF SEAWEED RESOURCES IN INDIA FIG: ALGINATE PRODUCTION IN INDIA
  8. 8. FIG: INDIAN RESOURCES AND SCENARIO FIG: CURRENT STATUS OF SEAWEED RESOURCES IN INDIA FIG: ALGINATE PRODUCTION IN INDIA
  9. 9. FIG: INDIAN RESOURCES AND SCENARIO FIG: CURRENT STATUS OF SEAWEED RESOURCES IN INDIA FIG: ALGINATE PRODUCTION IN INDIA
  10. 10. IMPORTANCE OF SEAWEED INDIA’S SEAWEED SQUADS BOOST WOMEN’S INCOMES AND CONFIDENCE
  11. 11. 1. Seaweed as Food:  Edible seaweed, or sea vegetables, are seaweeds that can be eaten and used in the preparation of food  Seaweeds are also hervested or cultivated for the extraction of polysaccharides such as alginate, agar and carrageen, gelatinous substances collectively known as hydrocolloids or phycocolloids 2. Seaweed as Beauty Enhancer:  Seaweeds is full of humectants that draw in moisture from the environment, and vitamin E, also great for hydrating the skin.  The extracts of seaweed are popular ingredients for many beauty products like cleansers, moisturizers, anti-aging products, scrubs. “Those with dry, sensitive, and acne-prone skin as well as those looking for anti-aging properties will benefit from seaweeds. 3. Seaweeds for Controlling Heart Disease and Stroke  Healthy diet, regular physical activity, and not using tobacco products are the keys to prevention. Checking and controlling risk factors for heart disease and stroke such as high blood pressure, high cholesterol and high blood sugar or diabetes is also very important.
  12. 12. 5. Anti-inflammatory Property of Seaweed:  Methanol extracts of the seaweeds Undaria pinnatifida and Ulva linza have a better inflammatory activity while tested against mouse ear edema and erythema. Edema was strongly dormant by the seaweeds Undaria pinnatifida and Ulva linza. These two seaweeds also showed the greatest suppression of erythema. 6. Seaweeds as Anti-cancer agents:  Seaweed has been shown to have several biological activities, including anticancer activity.  It also describes various compounds extracted from a range of seaweeds that have been shown to eradicate or slow the progression of cancer. 4. Antimicrobial and Antifungal Activity of Seaweed:  The methanol crude extracts of Gracilaria corticate having good usefulness against the antimicrobial and antifungal activities.  The Gracilaria corticata, Sargassum wightii and Turbinaria arnate also have a good source of antimicrobial agent.

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