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The blackening of the lotus root is the cause of starch oxidation, and if it has been for a long time and has a spoiled taste, do not eat it.
If it is a short period of discoloration, it is edible, you can add a small amount of white vinegar, and the color can be white.
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From the reason why the lotus root turns black, the blackened lotus root can be eaten, but because it has been eaten for too long, it will definitely not be fresh, so don't eat it.
Then I'll explain why the lotus root turns black.
One of the abundant polyphenols in lotus root——— gallic acid, when combined with iron ions, forms a blue-black substance, which is the main component of blue-black ink.
But why do the lotus roots that have not come into contact with any iron utensils and are placed in the vegetable basket turn black? This is because the polyphenols in the lotus root mentioned above are oxidized by polyphenol oxidase (PPO) to chemicals called "quinones", which are then polymerized together to form melanin. In fact, the cut apples turn brown and the bananas that are kept in the fridge turn jet black, all due to this reason.
How to prevent the lotus root from turning black during cooking.
1. In order to prevent the lotus root from changing color, you can soak it in light salt water, and drop a few drops of vinegar into the water to prevent it from being oxidized, and it is also very effective to scald it with boiling water.
2. After the lotus root slices are cut, soak them in clean water, on the one hand, wash off the sticky substances, and on the other hand, prevent them from changing color and stir-fry their color is not good-looking.
3. When frying lotus root slices, the more they are fried, the stickier they become, you can add a little water while frying, which is not only easy to fry, but also the fried lotus root slices are white and tender.
A family's view. Hope that helps.
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If the lotus root turns black, don't eat it. The blackened lotus root has already deteriorated. Eating such lotus root still has a great impact on the body. May cause food poisoning.
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When the lotus root turns black, it can still be eaten.
Lotus root contains a lot of polyphenol oxidase, and the lotus root itself is also a polyphenol food, containing a large number of phenolic substances, therefore, the flesh in the lotus root will oxidize and turn black as long as it comes into contact with the air, and the black matter generated by the oxidation or generation of this phenolic substance belongs to the quinone class, although the color is not good-looking, but it is non-toxic and edible.
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If the lotus root is blackened, it is recommended not to eat it, indicating that it oxidizes too quickly, and if there is a little bit of it on the skin, it can still be eaten.
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When the lotus root turns black, it can still be eaten. Lotus root contains a lot of polyphenol oxidase, and the lotus root itself is also a polyphenol food, containing a large number of phenolic substances, therefore, the flesh in the lotus root will oxidize and turn black as long as it comes into contact with the air, and the black matter generated by the oxidation or generation of this phenolic substance belongs to the quinone class, although the color is not good-looking, but it is non-toxic and edible.
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The lotus root oxidizes and turns black after peeling and slicing, and the prevention method is to soak it in salt water and vinegar water, and the lotus root will not change color after treatment.
Lotus root contains a lot of polyphenol oxidase, and the lotus root itself is also a polyphenol food, containing a large number of phenolic substances, therefore, the flesh in the lotus root will oxidize and turn black as long as it comes into contact with the air.
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Hello, glad you asked, your question was.
Can you eat it even when it's dark?
Lotus root is a traditional ingredient in our country.
Rich in nutrients. It is very beneficial to the human body, but the lotus root has turned black.
It's resolute that he can't eat it, which proves that he has been corrupted and spoiled, so it's better to throw it away.
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1. The lotus root is not edible if it is black, and after eating, it is likely that the feast will be particularly large for the human body, so it is best not to eat it.
2. Lotus root is a particularly common vegetable, which has a good effect of quenching thirst and clearing heat and dampness.
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