Mucic Acid test Drawing of crystals Glucose Galactose Fructose Lactose

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Mucic Acid test
Drawing of crystals
Glucose
Galactose
Fructose
Lactose
Transcribed Image Text:Mucic Acid test Drawing of crystals Glucose Galactose Fructose Lactose
2. Mucic acid test – place 1 ml of the sample (lactose, galactose, glucose, fructose) in separate
tubes. Add 1 ml conc. HNO3 in each tube. Heat the tubes in a boiling water bath for 1 hour.
Cool at room temperature. Induce crystallization by scratching the side of the tube with a
clean stirring rod, if no crystals appear; let it stand until the next laboratory period. Examine
the crystals under the microscope and draw.
Transcribed Image Text:2. Mucic acid test – place 1 ml of the sample (lactose, galactose, glucose, fructose) in separate tubes. Add 1 ml conc. HNO3 in each tube. Heat the tubes in a boiling water bath for 1 hour. Cool at room temperature. Induce crystallization by scratching the side of the tube with a clean stirring rod, if no crystals appear; let it stand until the next laboratory period. Examine the crystals under the microscope and draw.
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