Virtual Conference
Food Science 2023


D.G. Government Arts College, Mayiladuthurai, India

Title: Phytochemicals from Sea vegetables – Role in Health and Disease


Seaweeds are ocean plants which are classified by botanist as microphysis marine algae(Marine algae).They are microscopic, Multicellular and photosynthetic eukaryotic organisms. They were seen in different shapes, colours and size all over the earth. Seaweed refers to three taxonomic groups depend upon the diverse pigment composition. They are Chlorophyta (green algae), Rhodophyta (red algae), and Ochrophyta/Phaeophyceae (brown algae). Out of 221 seaweed species identified, 145 species are used as food, and 110 species for fertilizer and medicines. It occupies a special place in the pharmaceuticals due to the biomedical compounds. Among the seaweeds, the edible seaweeds are known as “Sea vegetables”. In the last few years, seaweed gained more attraction directly or indirectly in the food industry for making dishes or beverages. Most of the seaweeds are an edible one and they supply nutrients to the body. They contain rich amounts of potassium, sodium, calcium, magnesium, phosphorus, iron, manganese, copper, zinc, cobalt, selenium, iodine.  It also contains low amounts of carbohydrates, lipids, mainly polyunsaturated fatty acids(PUFA). Different seaweeds contain broad variety of phytochemicals. Generally, contains phytochemicals such as alkaloids, flavonoids, phenols, saponins, tannins, etc. Phenolics and phenolic compounds are most prevalent among the phytochemicals identified so far.  These phytochemicals exhibit a broad spectrum of biological activities such as anti-microbial, anti-viral, anti-allergic, anti-coagulant, anti-cancer, anti-fouling and anti-oxidant activities. Some of the example of the phytochemicals are Fucoxanthin (brown seaweed) contains anti-inflammatory potential, Carrageenans and galactan (red sea weed and green algae) have anti-microbial activity. In future, this seaweed attains a great impact in the field of medicines (phytochemicals) but also in food, as a supplement for the nutrients (minerals, lipids, carbohydrates (PUFA) need by the body’s function.
Keywords: seaweeds, sea vegetables, phytochemicals, anti-oxidant, marine algae,