Answer
Verified
407.4k+ views
Hint: - Lactic acid is an organic acid. The molecular formula of Lactic acid is $C{H_3}CH(OH)COOH$. In solid state it is white and is miscible with water. In a liquid state it is colourless.
Complete answer:-
Being acidic in nature, the pH value of milk is 6. When milk is converted into curd due to the action of bacteria, lactic acid is formed which is more acidic in nature. Therefore, as milk turns into curd the pH value gets reduced. Simple carbohydrates such as glucose, sucrose, or galactose get converted into lactic acid by the process known as lactic acid fermentation which is done by lactic acid bacteria. The bacteria can also grow in the mouth. This formation of bacteria in the mouth leads to tooth decay which is known as caries.
Hence, we can say that due to formation of lactic acid due to fermentation when fresh milk turns to curd, the pH value changes from 6 and becomes more acidic.
Note: - The presence of lactic acid or lactate in milk is due to the fermentation of lactose caused mainly by lactic bacteria. Generally speaking, just fresh milk does not contain lactic acid, but this increases after a while and it makes it more acidic.
Complete answer:-
Being acidic in nature, the pH value of milk is 6. When milk is converted into curd due to the action of bacteria, lactic acid is formed which is more acidic in nature. Therefore, as milk turns into curd the pH value gets reduced. Simple carbohydrates such as glucose, sucrose, or galactose get converted into lactic acid by the process known as lactic acid fermentation which is done by lactic acid bacteria. The bacteria can also grow in the mouth. This formation of bacteria in the mouth leads to tooth decay which is known as caries.
Hence, we can say that due to formation of lactic acid due to fermentation when fresh milk turns to curd, the pH value changes from 6 and becomes more acidic.
Note: - The presence of lactic acid or lactate in milk is due to the fermentation of lactose caused mainly by lactic bacteria. Generally speaking, just fresh milk does not contain lactic acid, but this increases after a while and it makes it more acidic.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Which type of bond is stronger ionic or covalent class 12 chemistry CBSE
What organs are located on the left side of your body class 11 biology CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
How fast is 60 miles per hour in kilometres per ho class 10 maths CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
When people say No pun intended what does that mea class 8 english CBSE