Question

Agar is a commercial product which has wide applications. Give two sources and the two uses of Agar

Answer 1

Heya


Agar is the dried gelatinous substance, obtained from:

i. Gelidium cartilagineum Gall,

ii. Gelidium pristoides Turn Kiitz,



Uses :


1. To prepare nutrient media in bacteriological culture.

2. In industrial applications like emulsion, sizing, silk textiles, adhesives and thickening ice cream.

Answer 2

Agar-agar can be sourced from red algae from varieties of Gelidium and Gracilaria.  

Explanation:  

• Agar-agar has varied uses in the commercial and biological industries. This substance is created from families of red algae and is used for many purposes.
• The agar can be used in medicines to form laxatives, to act as a suppressant of appetite, to be used in fruit preservatives and desserts, as a thickener for the soups, as substitute gelatin, in making fabrics and papers and others.  

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Agar is a commercial product which has wide applications. Give two sources and the two uses of Agar

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