Latter, the news that has cancer possibly about dish of long-term edible of the previous night causes heat to discuss on the net.
And present tense is worth midsummer, too torrid weather is the growth that gets used to bacterium and fungus particularly easily and breed, accordingly, rich, water divides nutrition enough dishes to go with rice, fruit became a bacterium to live simply, progenitive heaven.
Small make up those who listed the likelihood when summer appears a series of food safety problems, you must note these cases under.
1, dish of of the previous night must be refrigerated
Believe many people had listened to dish of of the previous night inedible view, a lot of people say to many nitrite is contained in the vegetable of of the previous night, often eat can cause cancer. Be really such?
Above all we will understand nitrite.
Nitrite is the floorboard of a kind of inorganic compound, basically point to inferior sodium nitrate. Its exterior and flavor are as similar as salt, it is in industry, bldg. wide to use, also allow to serve as set limit to of the agent that deliver quality to use in fleshy products.
The nitrite that we say is toxic and main because higher souse meat products, pickle reachs salt of edible nitric acid or nitrite content,be degenerative vegetable or by accident will industrial inferior sodium nitrate regards salt as edible and cause.
Haemoglobin oxidation becomes the low iron that nitrite can make oxygen is carried normally in blood Gao Tie haemoglobin, lose the ability that carry oxygen consequently and cause a tissue anoxic. Nitrite still is a kind of carcinogen at the same time, it can fall to wait for reaction to create strong carcinogenic substance with amine of the intermediate amine in food, father's younger brother and acyl amine in the environment such as hydrochloric acid in gastric juice N- inferior saltpetre amine. To nitrite the adult absorbs 0.2-0.5g to be able to be caused toxic, 3g can deadly.
But vegetable of of the previous night can take to basically depend on your store means.
The fact is the dish of of the previous night that stores in freezer nitrite content is not high, it is 2.0mg/kg only. And nitrite human body is daily allow intake (the dosage that does not have any foregone and undesirable effect) for 0-0.06mg/kg, to the person of 60kg, it is 3.6mg namely. The dietary guideline that recommends according to prandial pagoda combines afore-mentioned data, can calculate piece, theoretic even if eat completely put in freezer to store dish of of the previous night, content of absorbed nitric acid salt is 2.4-4.0mg about, inside the limits that belongs to safety.
The vegetable without cold storage because bacterial action, can produce nitrite of quite a few, produce a harm to human body!
So, vegetable is done now as far as possible eat now, such already safe nutrition. But if became ort act against one's will, must wait for refrigeration last on rear cover film puts freezer.
2, mildew changes food scarcely should eat
A lot of people to be not wasted, the part that can become moldy food is refuse, continue to take not mildewy part.
This is incorrect. After food is mildewy, changed color, sweet, be ignorant of not only, reduced food quality, and contain many mould. The vitality of mould is quite tenacious, macroscopical mildew changes is an iceberg only partly one horn, wanted food to had appeared only actually mildew changes, so be inbreaked by bacterial place already actually on behalf of place of this alimental other.
Mould toxin invades human body directly, can bring about enteron bacterium group confused, bromatoxism, cause acute abdominal disease even, endanger life. In the toxin of more than 100 kinds of mould that already discovered at present, in order to fizzle out aspergillus toxin noxiousness is the strongest, the biggest also to human body harm.
The child of a kind of metabolization that yellow aspergillus toxin is yellow aspergillus bacterium, its noxiousness is inferior 75 times of saltpetre amine, 68 times of arsenic, 10 times of potassium cyanide. If small dose is absorbed, can cause chronic and toxic, the harm to liver especially big; If large dose is absorbed, can cause virulent poisoning.
Yellow aspergillus toxin basically pollutes food oily food, be like rice, earthnut, corn, wheaten, flesh kind, breast and dairy produce, aquatic product. Its noxiousness and the sex that cause cancer is stronger and heat-resisting, general bath, cooking does not have much big effect to its, it is the world accepted liver cancer delivers one of pathogeny vegetable, want to be far from yellow aspergillus element in the life so, what we can do is the mainest is not to have mold bad, badness food.
3, roadside booth barbecue eats less as far as possible
Barbecue food is sweet tender goluptious, get of people love, little imagine inside it is dangerous to hide however.
Above all, the place of barbecue of the booth side greater part shunt is very dirty, from hind hutch arrives mensal, very rare and clean. And barbecue puts what await people outside to choose directly mostly, suffer various pollution easily. The environment of barbecue also is in driveway edge to go up mostly, get the pollution of dirt easily. So bad wholesome condition makes life very easily ill.
Next, the nutrient value of barbecue was reduced a lot of. Will tell fleshy products commonly the course is ripe protein meeting is metamorphic after changing, temperature is higher, the rate that these protein are destroyed is older, it is direct that barbecue is made burn on fire, scorched the flesh, protein is serious and metamorphic, cannot be changed to decompose by human body, nutrient value also was reduced a lot of.
In addition roadside booth barbecue uses bright fire to undertake barbecue more, often edible produces problem of safety of a few food probably. When bright baked wheaten cake is baked, temperature often may exceed 200 degrees, at this moment protein gets high fever, the possibility produces the heterocyclic amine material that causes cancer. Breast cancer, colonic cancer can be caused to wait in animal experiment. The pass place that bakes the more, contained carcinogenic substance is more. When barbecue local temperature is close to 300 degrees when, in the flesh adipose still can produce many benzene and Bi kind carcinogenic substance.
4, watermelon had better be to be bought now eat now
Everybody is discussing an issue recently: Last on the lid velar watermelon grows a bacterium more easily instead. You are certain very interrogative, lid went up to last is film should completely cut off bacterium?
In domestic environment, accomplish aseptic condition impossibly, watermelon may catch a bacterium because of all sorts of reasons, for example knife, air, splattering saliva make watermelon is infected with a bacterium likely.
Watermelon lasts on the bag after film, became a relatively airtight space, this kind of environment offerred better condition to bacterial breed, watermelon is the fruit that contains a lot ofcandy and moisture, in enclothe last after film, more appropriate bacterium grows, last on the lid so velar hind is easier develop bacterium.
Again for watermelon saying ice.
Enter the summer, watermelon is the good food of people solution heat. Many people are after redemptive watermelon, after liking to put watermelon freezer to refrigerate again edible, also be very happy with it even a few old people.
Glacial watermelon is very big to gastric stimulation, cause taste loss very easily, should notice to hold delicious temperature and amount so. In addition, the tomato red element that contains in the watermelon when normal temperature and β carotene wants tower above than iced watermelon 40% with 139% , and the compositive composition that these nutrient element are the antioxidant that has the effect that fight cancer.
Cold storage watermelon returns easy metamorphism, the storage life that watermelon leaves in 13 ℃ is 14-21 day, and in keep them existence refrigerator or putting ark on the ice, namely when 5 ℃ are saved, watermelon begins metamorphism one week later. Apparently look, putting freezer is for watermelon last, this meeting lets little imagine watermelon shifts to an earlier date " anile " .
Bacterium of oxygen of be disgusted with is contained in freezer, as the extension of time, the amount of bacterium of oxygen of be disgusted with will be increasing, adherent go up in the watermelon flesh of incision, the vitamin that can destroy watermelon place to contain, mineral nurturance waiting for battalion is divided. Watermelon belongs to the fruit with more water content, refrigerate for long can make moisture evaporates in great quantities, take away nutrient composition.
To prevent have loose bowels, when we eat watermelon, had better want to accomplish the following:
1
Buy now as far as possible eat now
2
Clean and clean cutting tool should be used when cutting watermelon
3
The watermelon that puts freezer is eaten off inside 1 day as far as possible
4
From the watermelon that freezer takes out, answer to restore to eat again to room temperature as far as possible, for our stomach, as far as possible little to eat readily temporarily too glacial watermelon
Come from the little hint of summer
To be warm, all sorts of food safety problems appear gradually, for everybody healthy, must great attention the small issue that these beside concealing!
