Liu Liping felt strange and asked: "It's not that simple, you can smell whether there is collagen after burning it, so what is it?"

Xu Yi carefully clumped up the paper ash and the remaining paper, pinched it in his hand, walked towards the house, and said: "Where am I so magical, this can only rule out the possibility of gelatin, after all, gelatin also contains a lot of cysteine, cysteine has sulfur in it, and hydrogen sulfide will be produced after oxidation, just like the smell of rotten eggs in the hair." ”

Pinching the paper ball and throwing it into the trash can in the kitchen, Xu Yi asked the others, "What do you think this thing is?"

Hu Yifei shook his head and said with a smile. "I have no idea about it, I don't know what it is. If you're going to let me guess, I can only say it's a strange slime in the plant kingdom. ”

The fat man thought about it for a while, and felt that he would only know after another look, so he asked Liu Liping: "Xiao Liu, where did you throw the mask on your face?"

Liu Liping pointed to the kitchen and said, "I'm afraid that the sewer in the bathroom will be blocked, and I will put it in a bag and throw it in the trash can in the kitchen." ”

When the fat man heard this, he reached out and pulled out a piece of toilet paper, put it in his hand and rummaged through the trash can, and then came back and said, "Look at this thing, I think of a few food additives that can become like this." ”

"What's that?"

The fat man picked up the bag of leftover masks and said: "Starch and pregelatinized starch are definitely not, starch can't be gelatinized with cold water, pregelatinized starch can be dissolved by cold water, but for so long, this starch will age and can no longer retain water." In addition, it looks pretty dry on top of this kind of thing, so these two things can basically be ruled out. ”

Xu Yi smiled and asked, "Then what do you think it looks like?"

"I think so. This thing is probably something about the same as agar. I just don't know whether Xiao Liu's bubble seeds are hot or cold, but the agar has to be heated to eighty or ninety degrees to dissolve. Cold water can't be boiled. Saying that, the fat man looked up at Liu Liping.

"Naturally, it's cold water, I thought this thing was protein, if it's hot water, isn't the nutrition destroyed, who knows that this thing has nothing to do with protein." Liu Liping said helplessly.

The fat man shook his head and sighed, and said, "This health and beauty industry is not shallow!"

Liu Liping glanced at Yu Hangsheng: "What's wrong with this?"

The fat man shook his head and said: "Just like the third child said before, the activity of this protein is the last thing that human beings need, or even strictly avoid." Before the fire. The lifespan of human beings is only ten or twenty years, and if it is really like those bullshit and contradictory health science that says everything must be eaten raw, isn't this all self-contradictory to human evolution. ”

It's just that this meat and vegetables are grown in a natural environment, and it's hard to guarantee that there are any pathogenic microorganisms in these things, and you want to retain the activity of proteins, which will inevitably make those pathogenic microorganisms also retain their activity, no matter what is raw and fresher than cooked, how ridiculous is this!"

"For the use of fire. Arguably the most important innovation in human history, cooked food is far better than raw food, even if only the efficiency of nutrient absorption is considered, not to mention that cooked food is also good at killing microorganisms and parasite eggs on various ingredients. When I used cotton cloth in those days. said that chemical fiber is good, and when chemical fiber is everywhere, this is said that cotton cloth is good. When the whole people cooked food, they went to advocate how good raw food is. Actually, when I think about eating raw meat masks, I feel disgusted, is this a pure retro style? Blindly pursuing so-called 'nutrition' is actually a kind of ignorance in itself. ”

"For example. The main purpose of any ingested protein is to be hydrolyzed into amino acids in order to be absorbed, and the protein after heat denaturation is more easily hydrolyzed by digestive enzymes. Therefore, the argument of nutrient destruction is actually unreliable, and this will also promote the absorption of protein after heating, but it is more nutritious. ”

"Even if you don't talk about animal ingredients, for example, eggplant still contains a lot of nicotine, if you eat eggplant raw, not to mention how it tastes, I'm afraid that this ingestion of nicotine is more than smoking, and then something like beans is not only eaten raw because it is dense and not easy to digest, but even because of the protease inhibin and other things contained in it, it will lead to the occurrence of poisoning incidents, so blindly emphasizing that raw food is beneficial, in fact, it is a fart that does not grow brains!"

Liu Liping said: "People don't say that everything is eaten raw, and the nutritional content is destroyed and includes other flavonoids and vitamins, right?"

The fat man nodded: "What you said is quite reliable, but if you go to the Internet to check the harmful effects of cooked food listed by some brain-dead, you can find all kinds of more outrageous statements, what destroys nutrients, forms toxins, weakens immunity, increases metabolic burden, etc. ”

"Not really. ”

The fat man shook his head and said, "Even if we all study Chinese medicine, there is no need to reject scientific things so much. In fact, most of the things that the human body needs are thermal and stable, if these things are really so easy to destroy, can we still use this traditional Chinese medicine? Many traditional Chinese medicines are tormented, even roasted on fire, although some drugs are not resistant to torment, and if these drugs are cooked for too long, they are indeed caused by the volatilization or destruction of flavonoids or alcohols in them. ”

Liu Liping said: "Aren't you proving that there is nothing wrong with the statement." ”

The fat man scratched his head and said, "Well, this kind of theoretical thing, it's better for the third child to talk about it, he can explain it better than me, the third one, do you have any research on these things?"

Xu Yi smiled and said, "I just understand a little." In fact, when it comes to destruction, there is no such simple. In fact, even flavonoids can retain more than 30% of their activity when heated at a temperature of 90 degrees for an hour. More evidence proves that even at room temperature, after four days of storage, some vegetables lose 780% of the vitamin C, but the vegetables are cooked at a temperature of 90 degrees. In about ten minutes, more than 60% of the vitamin C in this vegetable can be preserved. So for flavonoids, under normal cooking conditions. There is no need to pay attention to the activity of this thing, and vegetables should be more concerned about the storage time after picking. Of course, as the temperature rises and the heating time increases, the rate of destruction increases. However, as a modern person, many times we should pay more attention to the problem of overnutrition and unbalanced nutrient intake, and do not pay too much attention to the problem of insufficient nutrient intake. ”

The fat man smiled and said, "It's still the third, and the explanation is reasonable." I also think that with the combination of meat and vegetables, normal cooking can still meet the nutrients required by the normal human body. ”

Liu Liping remembered what she had seen before and said: "I remember that there was a TV station that added honey to starch. Then iodine ions are added, and the normal ones don't turn blue, but they turn blue when the water is heated, isn't this active?"

The fat man smiled and said: "This is actually just a proof of the activity of amylase, speaking of which, I think of a very interesting saying of the Chinese people, that is, whether it is honey or tea is very nutritious, but eating honey emphasizes the use of warm water." For fear that the 'active substance' will be destroyed, but boiling water to brew tea is proposed by the Chinese people. ”

"What's the matter, doesn't this heating prove that there is amylase in honey, and it can be destroyed?"

Xu Yi said with a smile: "According to the principle of this real yàn, if you don't soak honey in water and drink it." Instead, rubbing honey on top of steamed buns or bread and chewing it in your mouth for a while is the most correct way to eat. In this case, the amylase in honey can be used together with salivary amylase to break down starch. Maltose is produced, which is more effective for the use of this enzyme. Drink honey water empty. I didn't eat any snacks, there were no starches, so what could this enzyme do?"

"Furthermore, this enzyme is only a catalyst after all, not a reaction raw material or product, and as long as there are few catalysts, it can catalyze a chemical reaction very quickly, which does not prove anything. In fact, for the human body, the main role of the salivary glands is to moisten mixed food, and the secretion of amylase is not much, and the pancreas, which also secretes amylase, is the main digestive gland for the human body to digest starch. Just like an elevated urinary amylase often means that there is a problem with the pancreas rather than the parotid glands, etc. ”

Xu Yi smiled and continued: "And after the salivary amylase enters the stomach, it will also be quickly catalyzed and decomposed by pepsin in the acidic environment of gastric juice, so even if you drink honey directly in a full state, the amylase in it will not play a big role, you can't think that this protein intake is more nutritious for you." ”

"In fact, the content of protein or vitamins and other things in these things is not high, what too many nutrients can these things provide to the human body?"

"Honey is kept in the beehive, this thing is exposed to the natural environment for a long time, or the nectar will contain a lot of vitamins or flavonoids, in fact, if this is oxidized, it will have been oxidized almost cleanly, it can provide you, you just think about the sugar in it, you should ignore the rest, don't think of anything you eat as absorbing nutrients. After all, people are not animals, and people eat for a large extent. Fatty, you can explain it to her, I don't know much. ”

Yu Hangsheng nodded and took over the topic, and said: "The same is true for tea, when making tea, there is a necessary finishing process, that is, after high temperature or sunlight exposure, the enzymes in it are inactivated, like Longjing is fried at a high temperature of one or two hundred degrees, how many vitamins and flavonoids can be left? Even if it is not fried tea, such as black tea, Pu'er what kind of fermented tea, this also has a long-term piling process, this temperature plus oxygen and even the role of microorganisms, it can be said that this finished product does not have many nutrients even if you chew it raw, plus the process of making tea with hot water will inevitably lose some ingredients, what nutrients can you expect this thing to have in addition to tea polyphenols?"

"The most important thing about tea leaves is their taste, not nutrition, even if you drink a pot of tea can provide you with these things, even eating a raw cabbage leaf can't compare. ”

Seeing that Liu Liping pursed her lips and stopped talking, Xu Yi asked the fat man with a smile: "Then the agar is also excluded, do you think there is anything else like this?" (To be continued......)

PS: Has anyone guessed what the bug I left is?