NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Caramelization of sucrose yields
A
Glucose
B
Fructose
C
Glucose and Fructose
D
Charcoal
Explanation: 

Detailed explanation-1: -Unlike the Maillard reaction, caramelization is pyrolytic, as opposed to being a reaction with amino acids. When caramelization involves the disaccharide sucrose, it is broken down into the monosaccharides fructose and glucose.

Detailed explanation-2: -Initiating caramelization: heat The temperature at which caramelization starts varies by sugar type: Fructose kicks off first at 110°C (230°F). Galactose, glucose and sucrose all start to caramelize around 160°C (320°F). Maltose caramelizes, starting at 180°C (356°F).

Detailed explanation-3: -The breakdown of sucrose into glucose and fructose is an example of caramelization. Supersaturated sugar solutions are very stable and likely to form small crystals.

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