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Pharmacognostic and physicochemical evaluation of Cymbopogan citratus (DC) Stapf leaves
Authors: T.S. Geetha and N. Geetha
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Plants have been utilized as a source of nutrition and healthcare products since ancient times.
The present study deals with various standardization parameters like morphological characters,
microscopic evaluation, fluorescence analysis, physicochemical evaluations-proximate analysis
(Moisture, ash content, crude protein, crude lipid and crude fiber), solubility value (alcohol
soluble, water soluble and ether soluble) and mineral analysis (macro and micro nutrients). In the
present investigation, various sensory parameters of the plant material (such as colour, odour,
size, shape, and taste) were also studied by organoleptic evaluation method. In fluorescence
analysis, the leaf sample was subjected to different acid and basic solvents and the fluorescent
nature was observed in visible light, short UV and long UV. The proximate analysis showed the
moisture content of lemongrass leaves was 5.36% dry weight and crude protein 14.64% dry
weight. It was observed that alcohol soluble extractives value is higher than water soluble and
ether soluble extractive value. The content of vitamin E was found high (216.67 mg/gm of
extract) followed by Vitamin C content (155.07 mg/gm of extract). The mineral analysis revealed
various major and trace elements like calcium, sodium, potassium, zinc, manganese and iron
present in lemongrass leaves in various levels.