Shen Xiangcheng didn't know much about the production of food, so she walked away first and called the more professional Ye Jingming, and got the same answer.

Fruit juice products are inherently high in sugar, and even in the absence of oxygen, they will turn over and undergo a subtle oxidation reaction. There are also cherries in the process of growth and processing, no matter how clean they are, bacteria will attach to the fruit, although these are harmless to the human body, but with the juice in the bottle, accelerate the oxidation of the juice.

If a preservative is added, this oxidation can be inhibited, but not vice versa.

Do you have to add a preservative?

Shen Xiangcheng was caught in a decision-making dilemma, there were too many juice products in the market at a price of 5 yuan, and it was difficult for her to ensure that Huigu could survive from the wolves.

It must be high-end, and this original intention cannot be changed.

Shen Xiangcheng asked, "Lao Bai, if you don't add preservatives, how long can cherry juice be insured?" ”

Bai Dong shook the cherry juice and said: "I have isolated oxygen to the greatest extent in the production process, if it is a closed juice, it should be able to be stored for about a month, and it will be difficult to say after a month." ”

The shelf life of fruit juice products sold in the market is one year.

Products that can only be kept fresh for a month, no merchant is willing to buy and sell, if they can't sell it, they will only lose money if they are broken.

Shen Xiangcheng gave an order, "The juice that has been produced, all the juice that has been produced, Lao Bai, now this task is handed over to you, no matter what method you use, you must keep the cherry juice fresh for more than a year, of course, no preservatives can be added to the juice!" ”

Bai Dong was very embarrassed and said: "Mr. Shen, according to our current process, this is impossible!" ”

Shen Xiangcheng put down his words, "There are no conditions to create conditions, there is no technology to update technology, how can it be possible to succeed if you keep following the old path of others?" ”

After everyone left, Bai Dong was in a dilemma. How to keep the juice fresh!

In the next few days, Bai Dong turned on the temperature of the air conditioner to 30 degrees Celsius and adjusted the humidity to 80% in the laboratory of the factory to simulate summer.

He tried various ways, such as using full low temperature in the processing process, or reducing the concentration of the juice, but the effect was not obvious, he felt that the task given to him by Shen Xiangcheng was impossible, unless all people lived in a vacuum, otherwise there was no way to isolate oxygen and bacteria.

"Ahhh After a week of continuous experiments, Bai Dong collapsed, and a thousand catties of cherries were almost rotten, so he had to throw them away or give them away.

Bai Dong handed over the results of the experiment to Shen Xiangcheng, saying that he would continue the experiment, but the hope of success was very slim.

A small bottle of juice can make a person miserable?

Shen Xiangcheng refused to admit defeat, she went back to Jiangcheng once and purchased juice at various prices in a large supermarket, but the result was very disappointing.

Without exception, these juices are added with preservatives, although the preservatives are in line with national standards.

Shen Xiangcheng didn't want to give up, she entrusted Ye Jingming to help check the information on foreign juice production.

There is no preservative or preservative in foreign products, but there are additives. Ye Jingming also checked the so-called additives, which are similar to preservatives.

"Hey!" Shen Xiangcheng let out a long sigh, could it be that there was no way to take this step?

She suddenly thought of one thing, the problem that could not be solved by food chemistry and other methods might be solved in Shennong Spiritual Land.

She told her confusion, and she rolled her eyes, "You are the heir of Shennong, how can you not even solve this kind of thing." ”

Very simple?

Shen Xiangcheng didn't think, "Say it quickly, if there is any way, I'm already anxious now!" ”

"This kind of thing, kiss me and solve it." He shamelessly made his own request.

Then he added: "If you can't solve the problem by kissing me, you can solve it with two kisses." ”

Shen Xiangcheng kissed him twice on the door of his head and said, "Okay, tell me." ”

He smiled, "You wait here, I'll get you something." ”

After a while, Nono emerged from the forest, carrying a purple plant on his head.

"What is this?"

He put the plant on the ground and said, "Purple grass, this plant became extinct due to climate during the Warring States Period, and it has the function of dissolving stasis and reducing swelling. ”

"It's not what I want...... Shen Xiangcheng rolled his eyes.

"I haven't finished my words yet, in the words of the current academic community, the essence of removing stasis and reducing swelling is the antioxidant response. And this grass has a benefit, you can use a leaf to keep it fresh to the greatest extent, and don't look at it is now purple, colorless and tasteless after juice, does not affect the taste and color of the juice, and the most important thing is that it is also good for the human body to fight cancer. ”

"Is it really that amazing?"

"Try?"

Shen Xiangcheng brought a bottle of juice from outside, and after adding the comfrey, it was stored under high temperature conditions for a month without spoiling.

At this time, Shen Xiangcheng completely believed the words.

Bai Dong was anxious and stayed up late every day because of the experiment, and the hairline on his forehead receded more and more, gradually turning into the Mediterranean sun.

Another two weeks passed, and the experiment was still unsuccessful.

He poured two bottles of expired cherry juice and lay on the ground on the verge of collapse.

"Hey! Old white! ”

Shen Xiangcheng took Bai Qiu to visit Bai Dong.

Bai Qiu wagged his tail and walked in front of Lao Bai who fell to the ground, licked Lao Bai's lips, and Bai Qiu liked the sweet juice very much.

Lao Bai was woken up, and when he saw Bai Qiu, he was startled and quickly jumped up.

"Lao Bai, what's the matter? Is there a result? ”

Bai Qiu stuck out his tongue stupidly and retreated behind Shen Xiangcheng.

Shen Xiangcheng was speechless, is this a dog or a wolf......

Lao Bai stood up and looked at Shen Xiangcheng with a little wooden look in his eyes.

"There are no results, and many ways have been used, but there is no way to keep them fresh for more than a year."

Shen Xiangcheng handed a bottle of transparent juice to Lao Bai, "You try this, the juice extracted from plants has the effect of preserving, colorless and tasteless." ”

Bai Dong's head was already dizzy, and he opened a bottle of Gugu and poured it into his stomach.

"It really doesn't smell." Lao Bai commented.

Shen Xiangcheng was completely speechless, this old white had gone crazy doing experiments.

Fortunately, there was a lot of purple grass, and Shen Xiangcheng took out another bottle of juice, "You can try it." ”

Bai Dong was suspicious, and added a solution of comfrey to the juice in a high temperature and high humidity environment.

Even if the bottle is not closed, the juice still hasn't spoiled after a week!

That's great!

Bai Dong's eyes were red, and he anxiously asked Shen Xiangcheng what this thing was.

Shen Xiangcheng smiled mysteriously and said, "Okay, we can send our juice to the food testing agency for testing, and it will almost be on the market." (To be continued.) )