How to distinguish the true and false of persimmon skin cream
Four seas net: Persimmon appears on the market the peak season just passed not long ago, sweet and greasy delicious fresh persimmon has become the market new pet again. White as frost, dry outside and moist inside, has always been the description of high-quality persimmon by many consumers. However, recently, a netizen on Weibo revealed that the white frost on some persimmons was talcum powder or titanium dioxide powder!
To this end, some netizens asked: will talcum powder have something to eat? How to distinguish natural frost and talcum powder? For this reason, the reporter made a special visit to the market yesterday, and asked relevant experts about relevant issues.
Persimmons with more frost sell better
Yesterday, the reporter came to a large-scale non-staple food wholesale market - Ningbo No.2 bridge market and saw that there are basically persimmons in the stalls selling dried fruits. The price of each 500g is between 10 yuan and 20 yuan, and the persimmons are covered with a layer of white frost. Many customers are willing to buy this kind of persimmon with a lot of frost, said one stall owner. Therefore, merchants also choose persimmons with more white frost to attract customers.
Reporters open Taobao Search, found that persimmon sellers are also many, and the price difference is quite big. The price of domestic persimmon varies from 10 yuan to 20 yuan per 500g, but there are also hundreds of yuan per 500g expensive persimmon. Most of the more expensive ones are produced in Shaanxi, while the best persimmons, the seller's pictures, are quite attractive. From the comments of netizens, most also think that persimmons with more frost are sweeter than those with less frost.
In a large supermarket, when the reporter visited, he saw that the persimmon sold well in it costs between 30 yuan and 40 yuan per 500g. The reporter noted that most of the customers who come to buy persimmons will be more concerned about whether the persimmons are frosty.
Talcum powder is edible but has definite limit
The white frost of persimmon is naturally formed. Is it possible to say that the white frost on persimmon is talcum powder or titanium dioxide? Or how to detect whether the "white frost" is naturally generated or artificially added?
For this reason, the reporter specially consulted Ms. Ding, a professional of a famous biotechnology enterprise in our city yesterday.
Ms. Ding told reporters that the degree of making persimmons used to be quite tedious - first of all, you need to select good persimmons, wash them, peel them, put them on the shelves for drying, and then you need to moisturize them in a cool place to form a frost. This process takes more than half a month. 'in contrast, it's much easier to use titanium dioxide to make persimmon powder. According to Ms. Ding, it doesn't rule out that there are illegal businessmen who are opportunistic to sprinkle a layer of talcum powder or titanium dioxide on the surface of the persimmon, thus eliminating the frost process and ensuring the appearance.
Ms. Ding said that although talcum powder and titanium dioxide powder are edible grade additives permitted by the state, there are clear restrictions on their dosage. Among them, talcum powder can be used for cold fruits and talking chemicals (licorice products), with a maximum use of 20 g / kg; titanium dioxide can be used for candy coating, with a maximum use of 2 g / kg.
'the bulk persimmons are not easy to classify, because there is no special persimmon standard, and there is no regulation that persimmons cannot be sugar treated. If they are treated, they will be preserved. Due to the lack of clear classification, it is not easy for the testing organization to judge. 'said Ms Ding.
How to distinguish 'beauty' persimmon?
After understanding the relevant knowledge, I believe most consumers will be quite concerned about whether the white frost outside the persimmon is naturally formed or artificially spread. However, the reporter learned in the interview that there are some ways to distinguish the quality of persimmons.
During the interview, some insiders reminded the public that when choosing persimmons, they should not blindly pursue the white frost, but can be identified by "kneading, shaking and tasting".
First of all, if the white frost on the persimmon is too thick and the hand is covered with white frost after kneading, it may be the 'white powder' applied by the merchants.
Secondly, shake the persimmon, if there is a large amount of white frost scattered, it is also likely to be 'beauty persimmon', because the natural frost is difficult to shake off by itself.
Finally, it is to see whether the white frost can melt, because the main component of the real white frost is glucose, which is slightly sweet and ready to melt at the entrance, while titanium dioxide, talcum powder and other additives are difficult to dissolve in water.