What is raspberry?

There are hundreds of subdivided varieties of raspberries, and dozens of varieties suitable for eating. China has been home-grown raspberry varieties since ancient times. Domestic varieties have small fruit, insufficient flavor, single season, high environmental requirements, low yield and poor storage and transportation capacity, which are difficult to meet the needs of commercial production. The research and development of raspberry commercial varieties in China is late, while foreign countries, especially the Netherlands and the United States, have made progress in raspberry commercial varieties for nearly a hundred years, and have successfully developed a number of top commercial varieties, far exceeding the research and development varieties in China for decades, and are in a market monopoly position.

The large-scale planting of raspberries in China is represented by Yi raspberries in Yunnan, and the planting technology comes from the United States. The north is represented by Jixing Farm, and the technology comes from Holland. Raspberry has three colors, namely red raspberry, black raspberry and yellow raspberry. We usually see red raspberries.

In fact, red berries are raspberries, or more accurately, ordinary raspberries. Raspberry is known as a delicacy in Europe and America, and has been widely cultivated and bred in modern times. It was once called "magic fruit" by some health magazines. From Queen Elizabeth to Germany, France, Austria, Russia and other heads of state, they are proud of the fresh raspberries with exposed green leaves. Many people also plant raspberries in their own yards to entertain guests, so raspberries are very common in high-end families in Europe and America.

Black raspberries also belong to raspberries, but they belong to high-end raspberries, so they are called black raspberries. Native to North America, it is a perennial vine of Rubus in Rosaceae. Since ancient Greece more than 2000 years ago, local people have formed the custom of eating wild prickly blackberries. In recent years, the representative variety of the third-generation fruit, which is popular all over the world, has been recognized as the third-generation new special fruit by the United Nations Food and Agriculture Organization, and praised as "the fruit of life" and "the black diamond" by European and American countries. Because blackberries are not easy to preserve, black raspberries produced in China are mainly processed into frozen fruits and exported to Europe, America, Australia and other places, so blackberries are the only fruits that are difficult to buy fresh fruits in the market.

Black raspberry is rich in proanthocyanidins, SOD, selenium, ellagic acid, flavonoids and other highly effective antioxidant active substances, 20 amino acids and trace elements. It is found that there are more than 40 kinds of nutrients, among which proanthocyanidins, SOD, amino acids, calcium, iron, zinc, selenium and vitamins are several times or even hundreds of times that of blueberries, which is why it is praised as "fruit of life" and "black diamond" by European and American countries. A study by Tufts University in the United States found that blackberry extract helps to improve balance, coordination and memory. The antioxidant and anti-inflammatory properties of blackberry are the key to its health care efficacy. Blackberry also helps to promote communication between brain neurons and improve brain power.

The new shoots of yellow raspberry are light green or yellow-green, and the fruit turns from green to green-yellow to bright yellow when it is ripe, and the drupe is drooping, and the drupe is densely yellow-white pubescent. Yellow raspberry is easy to sprout roots and tiller, with very strong fecundity and high yield. Suitable for planting in mountainous areas, as long as one plant is planted everywhere. Raspberry is a kind of nutritious fruit, which contains a variety of nutrients that are easily absorbed by human body and indispensable to human body, especially the anticancer substance ellagic acid, which has rich prevention and certain curative effect on colon cancer, cervical cancer, breast cancer and pancreatic cancer.