The reason they do this is because of the plant's turgor pressure, which is the pressure of the cell's contents against its cell wall, determined by the water content from omosis. If there is more solute in the plant than in its surrounding environment than you have a hypotonic solution where water diffuses into the cell to achieve equilibrium. Thus by routinely spraying the vegetables with water it keeps up their turgor pressure and keeps them nice and crisp for us to eat.
Water pressure often provides the support to keep plants turgid. As vegetables dry out the water pressure drops and the vegetables become flaccid and wrinkly - not very attractive to a customer! When water is sprayed on the vegetables it diffuses across the cell walls because there's a higher concentration of water outside of the cells than in. Since this is water diffusing across the walls it's called osmosis.
The water from the produce diffuse into the air causing the fruit to become flimsy and not fresh. Grocery stores spray water on produce to keep it from going bad and keep it crisp and tasty.So if the vegetables are not sprayed they will go bad.
Through a process called osmosis, the fresh water enters the plant cells (through the selectively permeable membrane) and gives them a more rigid/strong appearance. This allows a plant to reach out for the sunlight, making it appear healthy and strong. As we know, people only buy healthy/strong plants so by spraying their produce with water, they increase revenue.
In the grocery store, plants have no way to absorb water naturally from the ground. So they need to be sprayed to keep them from wilting.
Some vegetables, like onions and potatoes, don't need to be sprayed because they have skins that are good at keeping water in. But a vegetable like lettuce loses water at a faster rate, so it needs to be sprayed pretty often.
Misting the vegetables fills the central vacuoles withing the cells with water due to the process of osmosis thus making the outside stay firm for longer.
So that they appear frehser and attractive..They look as if they come out of the morning dew
to keep them fresh and from decaying fast....!
to keep them moist & fresh looking
They spray their fresh produce with water because the produce can dry up. They add water so that the cells have the right amount of water in them, and so that they will stay somewhat fresh. ^Actually, water is not needed in a cell. Water is diffused in a cell so there are equal amount of molecules inside and outside the cell.
To keep it fresh!
They spray their fresh produce with water because the produce can dry up. They add water so that the cells have the right amount of water in them, and so that they will stay somewhat fresh. ^Actually, water is not needed in a cell. Water is diffused in a cell so there are equal amount of molecules inside and outside the cell.
Is it
You should be able to buy it in most grocery stores
Yes, produce will decompose quicker if wet than if dry.
To keep them from drying out and turning brown
every few hours you dont know whos touched it
put them in a pot of boiling water and eat 'em.
water stored in jugs and food sits on a shelf (usually fresh stuff).
Grocery stores sell Brita which will filter your water at home for you. If you want already filtered water then there are water jugs you can either have shipped to your home bought online or you can get from your local grocery store.
There are a few manufacturers that produce a water proof spray for boots. One of these companies is Kiwi, as well as Aqua Armor. These products can be found in local shoe shops, as well as the shoe section of any local department stores in the area.