Take care the litchi is gushed out the acid and kept fresh

Take care the litchi is gushed out the acid and kept fresh
The litchi is a famous fruit variety in South China. Litchi fruit juicy nutritious, have, supplement energy, benefit intelligence, invigorate the brain, strengthen immunity, lower blood glucose, subside swelling the intersection of person who detoxify and function.
While buying litchies, want to judge fresh degree of the litchi, should see the epidermis first. The normal and ripe surface of litchi is red and yellow, full of cracks sheet is relatively smooth, the seaming twine is obvious. If the litchi epidermis presents the brown spot, this is a kind of normal oxidizing the phenomenon, prove unfreshly. The longer the litchi preserve, the more superficial brown patch pieces are. If only the brown spot of small quantity, it must be a fresher litchi.
In addition no matter what the color on the surface of the litchi is, pulp of it be will deceive peopled. After shelling and opening, the surface of pulp is dry, did not flow out the juice at once, it was a fresh litchi. While buying litchies, round with the fruit shape and the slightly sharp, peel has feeling of thorn hands, dark color of appearance, and a dry one of epidermis is good. If epidermis color is dark red or coffee color, there is a fragile and hard feeling when feeling, it is already unfresh to show litchies. After buying back litchies, the bag containing litchi selects a little thinner food bag as much as possible, and spill some water on the surface of the litchi to moisten skin.
This he easy to darken pluck, in fresh litchi, through keep fresh that punish, will lose badly in three or four days. Every place of production freshness method of the litchi is different at present, chemical medicine of useful liquid state keeps fresh, the useful freshness protection package keeps fresh, there is smoked yellow sulphur.
What is called litchi gush out acid, mean short holding time their, retailer will it buys half-mature to be raw litchi even, soak with hydrochloric acid diluted, or spray rare hydrochloric acid on the surface of the litchi, the underdone litchi epidermis will become red and soft, fresh. Though the density of spraying hydrochloric acid is very low, will influence the quality of the pulp too. Has eaten the litchi sprayed by hydrochloric acid, apt to burn the lip, will damage digestive tract and stomach, influence human body's absorption of the nutriment, the growth, development of children is endangered greatly.
Antistaling agent of general fruit contains hormone of foreign aid such as naphthalene second acid, ethylene profit,etc.. The modulator of growth does not have a very overall data result to the extent of injury of the human body at the moment. The profit of ethylene stimulates function, there is function of losing of acid on mucous membrane. Symptom of will present burn feeling, nausea, vomit ing etc. after people take by mistake, the vomit is brownish-black. Still some antistaling agent contains the sulfur dioxide, this kind of composition will make the peel of fruit happen brown and change, people will be caused and poisoned while eating too much additive.
Chain four methods to distinguish " Make up " The litchi fumbles: Keep in touch and " make up " At the litchi, hand will feel hectic, have feeling to boil hands.
Smell: The naturally ripe litchi has perfume of litchi to smell, and " make up " Not only the litchi not merely has no perfume, but also smell a little sour too, even there is taste of chemical medicines.
Weigh in the hand: " make up " The litchi is a little heavier than the naturally ripe litchi weight.
See: Because the holding time of the fresh litchi is relatively short, generally need to refrigerate and keep at low temperature. If find litchies are put in the box at will by the retailer, use a lid of plastic cloth above, mostly all question litchies.
|