Strange price of strawberries in the market is more than ten times

The market price of strawberries ranges from about 10 yuan to more than 100 yuan. What causes such a large price difference? The reporter went to the “Strawberry Farm”, an organic strawberry cultivation base of the Chinese Academy of Agricultural Sciences. Shen Xiaodong, a technical staff who has been engaged in research on strawberry cultivation for many years, introduced that the main reason for such a difference is the variety, yield, and planting cost of strawberries, and the preservation of strawberries. Short-term characteristics caused. Ordinary strawberries have a short growth cycle, high yield, and low labor input, so the price is lower, and organic strawberries have a long growth cycle, do not use pesticides and fertilizers, pest control and large patient input, the output is not as large as ordinary strawberries, so the price is necessarily higher than Ordinary strawberries are tall.

Where are the potential safety hazards for strawberries? What is the difference between organic strawberries and ordinary strawberries?

"The difference between organic strawberry and ordinary strawberry is food safety and taste." Shen Xiaodong said that from the point of view of safety, ordinary strawberries used pesticides, chemical fertilizers, and growth regulators during planting. If the humidity is not well controlled, strawberries are particularly prone to “powdery disease”, which causes the strawberries to grow a white coat of hair and must be sprayed with pesticides to kill these white molds. These pesticides will adhere to the surface of the strawberries, due to the short growth cycle of the strawberries. Pesticide residues are difficult to eliminate. After being eaten, they are absorbed by the body and cause harm to the human body. In addition, some strawberry growers use redners to make the strawberries look red, use swelling agents, and shorten the growth cycle in order to make the strawberries sell well.

Organic strawberries do not use any fertilizers, pesticides, or growth regulators that violate organic production during the planting process. Eliminating the introduction of all genetically modified substances and components, using microorganisms and biogas slurry to fertilize the soil, and controlling insect pests by releasing natural enemies and Other non-chemical means.

In terms of taste, the growth cycle of organic strawberries is long. According to the variety, some varieties are slightly acidic and some varieties are sweet, which is better than the strawberry with fast-growing biological regulators.

Staining strawberries is purely a rumor that strawberries have a short shelf life. Unlike some fruits, when they are half-baked, they will come down for a while and will naturally change color. Therefore, in order to make the strawberry appear redder, the fruit vendor sprays the dyeing water on the strawberry, and the water turns red when the strawberry is washed. Shen Xiaodong thinks this is purely a rumor. Because the storage time of strawberries is very short, they can only be stored for two days at room temperature, and they can be stored in the refrigerator's fresh-keeping room for a maximum of one week, especially after sticking water. The storage time is shorter. , it will soon go bad. When washed, the water turns red because of the natural pigment of the strawberry itself. Rinsing with 2-3% light salt water can kill harmful microbes on the surface of the strawberry.

Related Links:

The “Strawberry Farm”, an organic strawberry cultivation base of the Chinese Academy of Agricultural Sciences, is located in Yangzheng, Shunyi District, Beijing. The base has 47 organic strawberry greenhouses and covers an area of ​​more than 300 acres. It is mainly engaged in the technical transformation of organic vegetables and strawberries and the standardization of planting research.

Strawberry is rich in nutrients, containing fructose, sucrose, citric acid, malic acid, salicylic acid, amino acids, and calcium, phosphorus, iron and other minerals. In addition, it also contains a variety of vitamins, especially vitamin C is very rich in vitamin C60 mg per 100 grams of strawberry. The carotene contained in strawberry is an important substance for synthesizing vitamin A, and it has eyesight and nourishing effect. Strawberry also contains pectin and rich dietary fiber, which helps digestion and smooth stool.