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If pH of milk is 6 then what will be the pH of curd?
no change
Curd is more acidic than milk is this true?
Yes, curd (or yogurt) is more acidic than milk because it is produced by fermentation, which involves the conversion of lactose (milk sugar) into lactic acid by bacteria. This increase in acidity results in the characteristic tangy flavor of curd that is not present in milk.
What is the useful microorganism present in curd?
Lactobacillus casei is the bacterium present in curd. It produces lactic acid, which in turn reduces the pH and coagulates milk proteins (primarily casein) forming curd.
Why does pH of milk change on turning into curd?
The pH of milk decreases when it turns into curd because the bacteria used in the fermentation process produce lactic acid as they consume the lactose in the milk. This accumulation of lactic acid lowers the pH of the milk, which helps in the coagulation of milk proteins to form curd.
Fresh milk has pH of 6. How do you thick the pH will change as it turns into curd?
As milk turns into curd, lactic acid bacteria ferment lactose into lactic acid, causing the pH to decrease. The pH of curd is usually around 4.6 to 4.8 due to the build-up of lactic acid during fermentation.
Is curd acidic or basic?
Curd is acidic in nature. It has a low pH due to the presence of lactic acid, which is a byproduct of the fermentation process that converts milk into curd.
Why it is necessary to add a small amount of yogurt to convert milk into yogurt?
Yogurt converts the milk sugar to lactic acid, driving the pH down. The low pH causes the milk proteins to coagulate into a soft curd. So basically yogurt is milk transformed by harmless bacteria.
What color does pH paper turn dipped in milk?
Milk has a pH level of 6.7, so it is slightly acidic. If you dip pH paper inside milk it will probabally go light green.
What is principle of curd making?
The principle of curd making involves inoculating milk with a culture of beneficial bacteria, such as Lactobacillus, which converts lactose (milk sugar) into lactic acid. The lactic acid lowers the pH of the milk, causing it to thicken and curdle, forming curds and whey. The curds can then be drained and pressed to make various dairy products like yogurt and cheese.
When milk is converted into curd what causes the sour taste?
A bacteria called lactobacilus converts lactose into Lactic acid thus making it sour. Lactic acid buildup due to bacterial activity causes the pH of the milk to drop. Once the pH drops below pH 4.6, the casein proteins coagulate and forms a curd. The curdling is due to the milk becoming sour.
Why did the solution turn into light pink at the end of the titration?
The pH was changed.
Is formation of curd a chemical change or a physical change?
Setting of curd is a chemical change b'coz when lactobacillus bacteria comes in contact of milk they convert the milk to curd due to some biochemical reasons.
