Blueberries are hailed as “the king of berries”, full of fruit, sour sweetness and fine meat, and are widely appreciated by consumers with unique flavors and high nutritional values. However, blueberries have a high water content and inappropriate storage is prone to corruption. In order to help consumers acquire and eat blueberries in science, the following consumption tips are made。
- what's a blueberry
The blueberry (vaccinium spp.) is the common term for blue fruit type fruit in the citrus plant of tucchinia, usually near or flat berries with a white layer of pollen. Blueberries consist mainly of high-strength blueberries (the fruit is large and sweet, suitable for artificial cultivation, a common variety on the market), low-strength blueberries (the fruit is small, the wind is more luminous and the flower eucosy is higher), and rabbit-eyed blueberries (the fruit is hard and the taste is mostly sweet). Blueberries in the north usually bear only one fruit a year, with maturity periods concentrated between june and august; in parts of the south, the results can be achieved in two seasons a year, from may to june and from september to october, respectively. Blueberries are rich in nutrients such as vasectomy, vitamin c, dietary fibres and minerals。
Scientific selection and storage of blueberries
The following should be noted for the purchase of blueberries:
Look at the look. Fresh blueberries are clean, tight, colours are coordinated with fruit, often green or brown, and leather is smooth and smooth. If there is a visible white, grey, green-flush, or black, dark-brown swirl, powdered, or even slimy substance in the twirl, accompanied by a visible aroma, sour or tasting, the blueberries are shown to be molded。
Two touch. Touch blueberries with your hands, fresh blueberries are solid and resilient. If you touch it soft, it means blueberries may not be fresh or spoiled。
Three smells. Fresh blueberries have a fragrance of fruit. If the smell of alcohol, mold or other dissimilar elements were to be found, the blueberries may have rotted or spoiled。
Blueberry storage needs to be cool and ventilated. Buying home blueberries, if not for the time being, can be loaded into a conservatory box with air vents and placed in freezer 0°c to 4°c, which can normally be kept for about 7 days. Avoid placing blueberries with other easy-to-emission ethylene fruits such as apples, bananas, in order to accelerate the maturity and decay of blueberries。
Blueberry cleaning and food
Fresh blueberry surfaces are covered with a flat, fine, dry “white frosting”, which is a glucose-based substance which is self-scrutinized by blueberry and has protective effects such as reducing water evaporation and resistance to bacteria, which can be eaten safely. Some consumers mistook it as a stain and washed it so hard that it damaged the blueberry skin and made the fungus more vulnerable to intrusion. It is recommended that consumers wash blueberries for 30 seconds under liquid water in order to remove the dust and impurities on the surface, and then add adequate salt and little soda to the water, soak for 5 to 10 minutes, and then wash and dry the water with liquid water。
The consumption of fresh blueberries avoids the loss of nutrients such as pheasant and vitamin c. Blueberries can also be coupled with yogurt, which can be used for desserts such as ice cream, cake, etc. Blueberries are not suitable for over-eating, and it is recommended that adults keep their daily consumption of blueberries at between 100 and 150 grams, which may lead to diarrhoea, etc. For special groups such as diabetics, low sugar varieties can be chosen or consumption can be controlled。
Expert author:
Li bin, rector, professor, shenyang agricultural university
Vice-president and professor, institute of life sciences and technology, university of whitewai, and university of south africa
