Elemantal Composition of Mangrove Avecennia Marina Essay
962 WordsJul 21, 20134 Pages
The plant parts were sorted out and surface contaminants of plant samples were removed by washing with deionized water. It was then dried and then subjected to grinding for powder formation. The powder was stored in air tight glass containers and used for further analysis.
Two gram powder of each plant part was dissolved in nitric acid and heated until the reddish brown fumes disappear. Perchloric acid was then added to the above solution and heated for 5 min. This was followed by addition of aqua regia and heated .The volume was then made up to 25ml in a standard flask by adding de ionized water. Estimation of elements was carried out using Inductively Coupled Plasma - Atomic Emission Spectrometer (Model: ARCOS from M/s. Spectro, Germany) 15.
Copper:Copper (Cu) is an essential redox- active transition element that play vital role in various metabolic processes. Being toxic, its quantity should be mentioned very low. The observation of anemia in copper deficiency in humans is a rare occurrence. Copper could be toxic depending on the dose and duration of exposure (Obi E et al., 2006). The permissible limit set by FAO/WHO (1984) in edible plants is 3.00 ppm. However for medicinal plants the WHO limits have yet not been established for Cu. (Jabeen et al 2010)
Zinc: is essential to all organisms and has an important role in metabolism, growth, development & general well being. It is an essential co-factor for a large number of enzymes in the body. Zinc deficiency leads to coronary heart diseases and various metabolic disorders.
Manganese: The permissible limit for Mn is 2ppm in edible plants. The permissible limits for Mn in medicinal plants have yet not been set. Iron: The permissible level set by WHO for iron in edible plants was 20ppm. Iron is important for the formation of hemoglobin & also plays an important