Ask who the sexiest fruit is
Strawberries don't let go
Delicate, juicy, sweet and sour...
(Image source: soogif)
But strawberries are also a controversial fruit
Every time it comes to market season, rumors about it follow
Today, let's take a look
What exactly makes you stay away from strawberries?
Big is to use the bulking agent?
Deformed strawberries are hormonal?
Poke the video and immediately correct the name of the strawberry
More content, it is worth perusing
Strawberries are "squeamish"
Harsh requirements on light, moisture, temperature and humidity[1,2]
Greenhouses are more suitable for the growth of strawberries
So strawberries in winter and early spring are more delicious than those in summer
To say that there are only 1 disadvantages - expensive!
Some strawberries are naturally large
For example, Yukika, Fengxiang, Zhangji and so on
Hybrid selection can also produce large strawberries
Improve cultivation techniques, water and fertilizer management, appropriate flower and fruit thinning[3]
It is possible to raise large strawberries
As for bulking agents
It does make strawberries bigger and fuller
It is legal to use it in moderation in the cultivation of fruits and vegetables
There is no harm to the human body
The disadvantage is that it may affect the flavor of strawberries[4]
It either becomes sour, or it is light and tasteless, and it can also lead to hollowing
Strawberries that have been expanded are not necessarily good
It's also easy to taste
Bad weather, pesticides and fertilizers are not being used correctly
Poor pollination of bees, etc
can cause strawberry babies to grow into crooked dates[5]
For example, excessive watering and fertilization of strawberries during the ripening period
Causes the outer epidermal cells to grow too fast
And the cell growth inside can't keep up
When the "growth gap" is opened, there will be a hollow[6]
In short, strawberries are deformed or hollow
It has little to do with hormones
Environmental Work Usa (EWG)
Every year, a "list of the dirtiest fruits and vegetables" is published.
Strawberries have been ranked first for several consecutive years
(Image source: EWG official website)
EWG is just a non-governmental environmental organization
It references pesticide residue data from the U.S. Department of Agriculture
This ranking does not talk about whether the residual amount is up to standard
Just describe the variety of pesticides
Didn't touch the crux of the matter
In other words, strawberries have the most types of pesticide residues
But this does not mean that strawberries have a large amount of pesticide residues
Many fruits inevitably have pesticide residues
But as long as it is within a reasonable dose prescribed by the state
It's safe
First half of 2020
The pass rate of national food safety supervision and sampling inspection is 97.89%[7]
A study of strawberry pesticide residues showed
Its pass rate is as high as 98.21%[8].
Bottom line: eat with confidence
Dyeing doesn't stain strawberries red, but sunlight can
The more abundant the light, the redder the strawberries
Some strawberry seeds will also turn red.[9]
The same goes for "white-ass" strawberries
They tend to be in "puberty"
The fruit was plucked before it turned red
Because overcooked strawberries are difficult to preserve
Color drops when washing strawberries because strawberries are rich in anthocyanins
With a little force, anthocyanins may run out
Dissolves into water and turns red
Absolutely!
Reason 1: Low calories
Strawberries have a moisture content of more than 90%[10]
This makes it very low in calories, only 1/3 of a banana
Reason 2: A treasure trove of vitamin C
47 mg of vitamin C per 100 g of strawberries[10]
About half a pound can meet the needs of the day
Strawberries are also rich in minerals such as calcium, potassium, and magnesium
Poke the video and learn from your little brother
(There are also a lot of cold knowledge of strawberries.)
There is a separate reminder:
Strawberries should be rinsed with the stalk, and then go to the stalk after washing
If you have to pick the strawberry stalks in advance
The dirty stuff slipped in the strawberry butt
Remember to forward this article to the circle of friends
Not only strawberries will thank you, but so will blueberries and cherries
Review expert: Shi Jun
Ph.D. in Botany, Institute of Botany, Chinese Academy of Sciences
bibliography
Miao Lu. The growth and development of strawberries and the requirements for environmental conditions[J].Northern Horticulture,2006,(3):87-87.
Meng Fang. Analysis of key technologies for high-yield and efficient planting of strawberries in greenhouses[J].Seed Science and Technology,2020,38(3):59,61.
Liang Yinglong, Chen Junwei, Qin Qiaoping, et al. Effects of fruit thinning on single fruit weight, glucose metabolism and accumulation of strawberry "Otome" in facility cultivation[J].Zhejiang Journal of Agricultural Sciences,2006,18(4):250-252.
Dong Xinping,Yang Haixin,Fan Xiaorong. Experiment on increasing strawberry quality and yield with strawberry bulking agent[J].Chinese Fruit Tree,2001,(6):24-26.
ZHANG Huifang. Strawberry deformity fruit types, formation causes and integrated control[J].Southeast Horticulture,2016,(5):38-40.
Song Jia. Different methods for the control of various types of malformed fruits in strawberries[J]. Rural Science Experiments, 2017, 4: 27.
[7]In the first half of 2020, the pass rate of national food safety supervision and sampling inspection was 97.89%[J].Food and Life,2020,(9):28-29.
[8] Yan Ni, Wang Wensi, Annals of History, et al. Risk assessment of pesticide residues in strawberries[J].Anhui Agricultural Sciences,2020,48(15):200-204.
Shao Wanlu,Li Yueling,Gao Song,et al. Effects of light intensity on fruit coloring and anthocyanin biosynthesis of ripe red strawberry and possible molecular mechanisms[J].Botanical Research,2018,38(5):661-668.
[10] Yang Yuexin, editor-in-chief, Institute of Nutrition and Health, Chinese Center for Disease Control and Prevention, Chinese Food Ingredient Table (6th Edition)[M]. Peking University Medical Press,2018.]
Author: Dian Ge
Editors: Zhang Jie, Zhang Li
Proofreading: Wu Yihe | Typesetting: Li Yongmin
Operation: Han Ningning | Coordinator: Wu Wei