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How to identify "saccharin jujube" when winter jujube is on the market

   Release date: 2019-07-31     Hits: 10    Comment: 0    
Note: The new winter jujube on the fruit stall was welcomed by the public during the eleventh long holiday. However, while eat
 The new winter jujube on the fruit stall was welcomed by the public during the eleventh long holiday. However, while eating sweet winter jujube, we are constantly hearing the rumor of "saccharin jujube".
The reporter of Yangtze Evening News Consumption Jury purchased winter jujube from the market specially, and experimented with saccharin sodium and cyclamate, which were used to make "saccharin jujube" additive, to see how the "cosmetic" winter jujube looks and tastes, and how consumers should identify it.
How to Identify "Sugar-essence Jujube" Uh.jpg when Dongzao is on the market
Citizens complain
How did the winter jujube I bought get worse and worse?
"Why are all the winter jujubes I bought red?" Mr. Xu, a consumer, was puzzled when he got the winter jujubes from Taobao stores because most of them were all red. He was somewhat doubtful whether he had received the "ripening" saccharin jujube.
Mr. Xu said that after receiving the dates, he contacted the customer service of Taobao stores. The other side assured him that the dates must be picked now, but when Mr. Xu ate a few winter dates, he was even more suspicious, because the jujubes seemed to lack luster and tasted dry.
"I later posted my impressions and photos of Dongzao to the message board, and everyone agreed with me." Mr. Xu said that some netizens put forward to see his picture and felt that the red color of the winter jujube was somewhat abnormal.
Coincidentally, Ms. Zou, a citizen of Nanjing, also told the Yangtze Evening News that she had bought two Jin of winter jujube two days ago, but after eating five or six, she felt that the jujujube did not have the sweet taste at the beginning of the entrance, on the contrary, it became bitterer and bitterer. At that time, she only thought that maybe it was the bad taste of the jujube. Later, when she looked at the circle of friends, she knew that there was a kind of "saccharin jujube". When she recalled the sweet taste of the skin and meat, she wondered if she was also "hired".
Field visits
Saccharin Sodium sells well when it's high in price.
Changhong Road market is the distribution center of Nanjing condiment wholesale, but it is not easy to buy saccharin sodium, the main raw material of saccharin jujube here. Yangtze Evening News reporters then ran to several stores, which did not sell sodium saccharin. A boss asked reporters what to do with saccharin sodium. Reporters said they wanted to soak fruit. The boss laughed and said that "saccharin sodium" is seldom used nowadays, because this material is not only expensive, but also easy to taste bitter when soaking, so it is generally replaced by sweetener.
At another condiment stand, the above-mentioned boss's words were /confirm/ied. Here, Yangtze Evening News reporters bought 500 grams of "saccharin sodium" for 40 yuan, while the effect of similar 1000 grams of sweetener for only 17 yuan. The owner said that there were specific methods of use and dosage on the package, which could be followed. He repeatedly told reporters that the effect of cyclamate should be better and cost-effective.
Journalist experiment
What's the sugar-refined jujube like? Yangtze Evening News reporters bought sodium saccharin and sweetener, so reporters began to follow the secrets of the production of sugar-refined jujube posted on the Internet, to deal with the winter jujube and explore the method of distinguishing "sugar-refined jujube" from normal jujube.
1 Hot water + saccharin sodium + winter jujube = saccharin jujube?
Experimental materials: saccharin sodium, winter jujube, boiling water
The experiment process: Dongzao jujube was treated by hot water blanching and sodium saccharin solution soaking, and the quality changes were observed.
The results showed that after two minutes in boiling water, the color of winter jujube began to turn red, showing a yellowish-brown color; after 10 hours of soaking, the color of winter jujube with yellowish-brown color did not change significantly, but the surface was wrinkled because of soaking in boiling water, while the surface of normal jujube was hard and smooth.
Taste: After soaking in hot water, the skin of "saccharin jujube" becomes soft. The skin of jujube is sweet and sticky. Although the taste of jujube meat is sweet, it can taste bitter.
Conclusion: It is unreliable to make "saccharin jujube" in this way. After the skin is heated by boiling water, the pulp is not crisp and the color does not change obviously.
2 Hot water + cyclamate + winter jujube = "sweet vegetable jujube"?
Experimental materials: cyclamate, winter jujube and boiling water
The experiment process: Dongzao jujube was treated by hot water blanching and sodium cyclamate solution soaking, and the quality changes were observed.
The results showed that the color of Dongzao began to turn red and yellow-brown two minutes after being put into boiling water. After 10 hours of immersion, the color of Dongzao which presented yellow-brown did not change significantly as that of "saccharin jujube" in previous experiments, but the surface was wrinkled because of being immersed in boiling water. Evergreen jujube is hard and smooth.
Taste: After soaking in hot water, the skin of "sweet vegetable jujube" becomes soft, the skin of jujube is sweet, it feels slightly sticky, and the sweetness of jujube meat tastes slightly greasy.
Conclusion: It is unreliable to make "saccharin jujube" in this way. After the skin is heated by boiling water, the pulp is not crisp and the color does not change obviously.
3 Cold water + Saccharin Sodium + Soaking= "Red Saccharin Jujube"
Experimental materials: winter jujube, saccharin sodium, cold water
The experiment process: Dongzao jujube was used as raw material, saccharin sodium was added, then tap water was injected (normal temperature). After stirring and dissolving, Dongzao jujube was put into water to stand, and the color change of jujube skin was observed.
The results showed that the initial color of winter jujube in normal temperature water did not change very quickly compared with that in warmed winter jujube. However, after 5 hours, the original color of winter jujube was green.
 
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