Pickling is an age-old method of preserving cucumbers by fermentation or using brine and vinegar.
Below is a simple flowchart for preparing cucumber pickles by brine fermentation method:
Selection of fresh cucumbers
$\downarrow$
Washing and sorting
$\downarrow$
Trimming ends and slicing if needed
$\downarrow$
Preparation of brine solution (5–8% salt)
$\downarrow$
Placing cucumbers in clean jars
$\downarrow$
Pouring brine to cover cucumbers completely
$\downarrow$
Covering jars with lids or cloth to allow fermentation
$\downarrow$
Fermentation at room temperature for 2–4 weeks
$\downarrow$
Checking for proper sourness and sealing jars
During fermentation, lactic acid bacteria convert sugars in cucumbers into lactic acid, which acts as a natural preservative.
This method enhances flavor, preserves texture, and extends shelf life.
Good hygiene and correct brine concentration are essential to avoid spoilage.
Match List-I with List-II
List-I (Examples) | List-II (Type of processed foods) |
---|---|
(A) Pickles, jam, marmalade, squashes | (I) Functional foods |
(B) Probiotics | (II) Formulated foods |
(C) Frozen peas and frozen vegetables, canned fruits and vegetables | (III) Manufactured foods |
(D) Bread, biscuits, ice cream | (IV) Preserved foods |
Choose the correct answer from the options given below:
A battery of emf \( E \) and internal resistance \( r \) is connected to a rheostat. When a current of 2A is drawn from the battery, the potential difference across the rheostat is 5V. The potential difference becomes 4V when a current of 4A is drawn from the battery. Calculate the value of \( E \) and \( r \).