Formulation and Charcterization of Lake Color Obtained From Red Cabbage.
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Date
2016-01
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Abstract
Colorants are mainly used to impart a distinctive appearance to the pharmaceutical dosage
forms. The present study was carried out to develop aluminium lake color of a dye obtained
from red cabbageusing different adsorbent (s) (Aluminium oxide or aluminium hydroxide or
combination of both) in different ratio by simply mixing them to get dye adsorbed onto the
surface of adsorbent.Batch Mode studies were carried out for 60 minutes.
Aluminiumhydroxide at a concentration level of 30% w/v found to be the choice of adsorbent
after optimization because maximum adsorption of dye from reaction mixture after 60
minutes and maximum % yield.After optimization of adsorbent the effect of pH and
temperature also studied by formulating lake by varying these two parameters. It was
observed that a higher temperature (50oC) and a slight acidic pH (6) favor the adsorption. The
lake then characterized for various physicochemical properties like angle of repose, Carr’s
index, hausner’s ratio, loss on drying, particle size and limit test for heavy metals. The lake
was found to follow pseudo second order kinetics.
Description
Keywords
Red Cabbage, Lake color, Adsorption, AluminiumLak, pseudo second order
Citation
Shivali Singla1, Mukul Mathur1 , Chetan Singh Chauhan2 ,Sachin Goyal3 , M. Junaid. Formulation and Charcterization of Lake Color Obtained From Red Cabbage. Indian Journal of Pharmaceutical & Biological Research. 2016 Jan-Mar; 4(1): 50-56.