reema noticed that her mother strained mother strained out excess water from cooked rice. Her mother then used that water to stiffen her cotton Saree. How is it possible?
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Answered by
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The rice is taken with water in a closed vessel and it is heated until the rice gets cooked, then the excess water is filtered out.
The filtered water contains starch, which used in cotton saree.
It provides firmness and silkiness to the sarees.
The sarees stand erected all the day without any fold.
The filtered water contains starch, which used in cotton saree.
It provides firmness and silkiness to the sarees.
The sarees stand erected all the day without any fold.
Answered by
3
The filtrate contains starch in large quantities.
- Cooking of rice releases large quantities of starch into the hot water.
- Starch is a branched polymer of glucose which becomes thick and sticky in warm/hot water.
- This starch sticks to the cloth fiber and holds them intact resulting in stiffness or crispness when dried.
Even though plants are the natural source of starch, it is getting replaced by synthetic starches nowadays.
Starching of clothes is an age-old practice dating back to Egyptian times.
It is done
- to keep the clothes crease-free and look clean and professional .
- to avoid soiling of clothes as debris, sweat, etc. get attached to the superficial starch, not the clothes.
Some more interesting information can be found here.
What are the uses of starch
https://brainly.in/question/5973721
Explain starch with structure?
https://brainly.in/question/7158115
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