Experts say that to eat healthier, we can choose to replace some of our staple foods with sweet potatoes. This not only makes the taste richer, but also provides sufficient vitamins and dietary fiber to provide the body with comprehensive nutrients.
Nutritious sweet potato
Sweet potato, white potato, purple potato all belong to the sweet potato family, according to the color of the potato meat to divide, sweet potato can be roughly divided into white flesh sweet potato (white potato), yellow meat sweet potato (sweet potato), purple sweet potato (purple potato) and other types, different colors of sweet potatoes have their own characteristics, each has its own strengths.
In a word:
Sweet potatoes have high sugar content and high sweetness, white potatoes have high starch content, low sweetness and glutinous taste, and purple potatoes have moderate sweetness and are rich in anthocyanins.
01
Yellow-fleshed sweet potatoes – the "queen" of carotenoids
May reduce the risk of constipation
Yellow-fleshed sweet potatoes are characterized by a higher sugar content, a higher sweetness, a slightly lower starch content, and a softer texture. Most of the roasted sweet potatoes we eat daily are roasted with yellow-fleshed sweet potatoes as raw materials. Due to the high sugar content, the roasted sweet potatoes have a strong aroma, a special burnt aroma, and the taste is soft and glutinous and sweet, which makes people enjoy eating a lot.
According to experts, the content of vitamins and carotenoids in yellow-fleshed sweet potatoes is high, which has a very important role in the human body:
The β-carotene in carotenoids can be converted into vitamin A in the human body, which plays an important role in preventing vitamin A deficiency and protecting eyesight.
α-carotene is beneficial for the prevention of cardiovascular and cerebrovascular diseases and cancer.
Lutein, also known as "phytoprogesterone", is a type of carotenoid that benefits retinal and heart health.
02
White potatoes – high in starch
After eating staple foods, reduce the amount
The inner color of the tuber root of white potato is lighter, and the taste is more powdery and dense when eaten, and the sweetness is also lighter.
In terms of nutrition, sweet potatoes are high in starch and high in carbohydrates. White potatoes can be eaten steamed, boiled, or roasted like sweet potatoes.
03
Purple sweet potato - rich in anthocyanins, antioxidants
The anthocyanin content in purple potatoes is high (the actual state of existence is anthocyanins), and the antioxidant capacity is relatively strong, but special attention should be paid to the fact that anthocyanins are water-soluble, so the best way is to eat them steamed or roasted, but don't boil them, or cut them into strips, and then fry them, so that they will lose anthocyanins.
Purple potatoes are rich in dietary fiber, especially suitable for people with constipation. Dietary fiber is indispensable for a healthy diet and plays an important role in laxative and gastrointestinal function. At the same time, adequate intake of dietary fiber can also prevent cardiovascular disease, diabetes and other diseases.
It is worth mentioning that it is okay to use roasted sweet potatoes and dried sweet potatoes without additional sugar as desserts and snacks, but if you eat a large piece of baked sweet potatoes, the amount of staple food should be appropriately reduced.
Today's brain-burning questions:
What does a two-color purple sweet potato look like?
The farmer curiously clicked on his homepage:
This peeled sweet potato,
It turned out to be half white meat and half purple meat,
It's the first time I've seen a small farmer!
The small farmer flipped through the comment area,
found
The comments of netizens are also varied:
Some say that it can be used to send papers
Some people say that it will be handed over to the agricultural science department,
You can "make a lot of money".
It is said that it is "glued"
There are also those who say that online games shine into reality.
naturally
Some netizens also reported that they had encountered a similar situation,
It's just that the color is slightly different↓↓↓
There doesn't seem to be any problem with eating it,
The taste is still very subtle,
What's going on here?
After consulting with experts, smallholder farmers
The following reply was received:
According to experts, this is a situation that often occurs in the breeding industry or in the planting industry.
The reason may be that purple sweet potato encounters environmental changes or other factors in the production process, resulting in gene mutations or changes in transcriptional regulation in the process of pigment synthesis.
It's like space breeding, if we take a seed to space, after ultraviolet radiation, it may have some mutations, which is also a mutation phenomenon, which should be relatively common.
In this case, which often occurs in the breeding industry or in the plant industry, if it does not produce mildew or deterioration, but only changes in color, and does not find any toxicity, it is completely edible.
It's just this one in the picture,
It's a little too long,
Don't eat it!
Do you understand all today's little knowledge?