Science, asked by sarthak9945, 7 months ago

Riya saw and helped her grandmother in cutting, sun drying and then pickling raw mangoes during summer season. She asked her grandmother about sun drying and why it’s important.
a) Why mangoes are sundried before pickling?
b) Name any two preservatives that can be used for preserving mangoes.

Answers

Answered by kaurjasminejasleen
1

Answer:

Explanation:

1) They don't have to be completely dry, but most of the moisture should have evaporated and the skins start to turn greyish. Drying helps to preserve them for longer.

2)  Benzoic acid ,Sodium benzoate

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Answered by angelabinoy07
1

Answer:

Explanation:

a)They don't have to be completely dry, but most of the moisture should have evaporated and the skins start to turn greyish. Drying helps to preserve them for longer.

b)METHOD 1: Drying

Get your mango (either by plucking or by buying)

Wash very well and then peel that back

Mix 8–9 tablespoons of lemon juice (to help retain the mango colour) in 1000 ml/4 cups/68 tablespoons of water

Slice the fruit in thin pieces into the mixture from 3 above and allow to soak

Preheat your oven to 55 degrees.

Set the soaked mango (evenly spaced) on the oven tray and put in the oven for 18 hours, as an alternative, spread the soaked mango out in the sun (Note: the sun must be extremely scorching) till its dry but supple, depending on your taste.

Place in a jar or plastic bag

Dust off with icing sugar (just enough to stall the tartness of the lemon juice).

Seal off and place on the shelf.

Note: best consumed in the first 6 months.

METHOD 2: Soaking in brine

Brine is simply a solution of salt in water, some add preservative to extend its shelf life, but if you are all about team natural, use without preservation. This will last up to a year.

Get your mango (either by plucking or by buying)

Wash very well

Peel the back (optional)

Cut into tiny pieces

Pour in a glass jar or ceramic container and fill with water such that it covers the mango

Add approximately 3 tablespoons of salt.

Cover tightly

Shake well and allow to sit in the sun for 3 days

Drain the soaked mango and spread under the sun for another three days

Air dry (inside your house) for at least 10 days

Package in a container and place on the shelf.

Note: shake the jar often whilst still under the sun. 3g/o.5 tsp of Potassium metabisulphite can be added as a preservative.

How to make brine water

This procedure is for 5% salt solution.

If you are making 1000ml of water, multiply by 0.05 to get the weight of salt to be used. That’s 50g of salt.

METHOD 3: Processing

Mango bars

Get your fully ripe mango (either by plucking or by buying)

Wash properly and peel

Cut up into pieces and blend to a smooth paste

Add 10 to 15% sugar of the pulp

Add 2 tablespoons of lemon juice and a pinch of Potassium metabisulphite to the pulp

Heat for three minutes at medium heat and pour into a tray already coated with vegetable oil

Set to dry under the sun till a leather consistency is observed

Cut into desired shapes and package in plastic bags.

Storage life : about 12 months (with preservative), less than 12 months without preservatives

Mango juice

Get your fully ripe mango (either by plucking or by buying)

Wash properly and peel

Cut up into pieces and blend to a smooth paste

Into 1000 ml of pulp, add 1000 ml of boiling water, 2 tablespoons of lime and approximately 12 tablespoons of sugar

Package in a clean bottle and sterilize in not too hot (like 60–70 degree celsius) water.

Allow to cool and store

Storage life : about 12 months

Mango jam

Get your fully ripe mango (either by plucking or by buying)

Wash properly and peel

Cut up into pieces and blend to a smooth paste

Pour the pulp in a pot and place over the stove (medium heat)

Add 60% sugar of weight of the mango prepared

Add two spoons of lemon juice and stir continuously

Once a jelly like structure begins to form, add another 2 spoons of lemon juice and continue stirring

At the stage the gel should be fully formed.

Cool and package in clean jars

Store.

Now which of these methods are you ready to adapt this coming mango season?. As for me I am doing with drying.

Sources:

How To Dry Raw Mangoes For Long Time Storage by antoniraj in canning and preserves

Preserving Mango Through Dehydration (Drying) by Mark Valencia. Published: 11 February 2014

Rural processing and preserving techniques for fruits and vegetables by Agriculture and Consumer Protection of the FAO Corporate Document Repository.

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