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Essay

Isolation and Purification of Cholesterol from Egg Yolk

Essay specific features

 

Issue:

Science

 

Written by:

Keith C

 

Date added:

November 29, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

1 / 266

 

Was viewed:

5669 times

 

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Essay content:

The melting point of the yellow, sticky crude product was 91-119 oC. This crude product was then recrystallized from methanol, yielding 0.128g of pale yellow crystals with a melting point of 131-135 oC. This represents 0.33% of the original mass of the two yolks. The cholesterol was then dissolved in ether and further purified by bromination with a bromine/acetic acid reagent and debromination with zinc powder, a series of aqueous washes, and a final recrystallization from methanol...
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This represents 0.33% of the original mass of the two yolks. The cholesterol was then dissolved in ether and further purified by bromination with a bromine/acetic acid reagent and debromination with zinc powder, a series of aqueous washes, and a final recrystallization from methanol. Here, a yield of 28% was recovered from an initial mass of 100 mg of recrystallized material...
displayed 300 characters

General issues of this essay:
Product Discuss the role of product positioning in consumer buying decision process and whether consumer involvement impacts on the role of product positioning in the decision process Examining The Impact Of Product Attributes On Perception Towards Brand Product New Product Dev. new product marketing PRODUCT LIFE CYCLE AND INTERNATIONAL PRODUCT LIFE CYCLE ECONOMIC AND MARKETING PERSPECTIVES Product Life Cycle And International Product Life Cycle Economic And Marketing Perspectives Product Mix and New Product Development Strategies Product Mix Product Pricing WWF's Generic Product Product Mix product mix Isolation and Purification of Cholesterol from Egg Yolk The purity and purification of solids-Melting point
 

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