1, saccharin, zero-calorie sweetener, white crystalline powder, insoluble in water. It was invented by Russian chemist farid Berger in 1879.
2. MSG is a delicious condiment, which is easily soluble in water, and its aqueous solution has a strong salty taste. Retterhauer of Germany was first isolated from wheat gluten in 1846, and it was produced in Japan in 1909.
3. Tofu is a kind of nutritious food with a long history, which contains a variety of essential trace elements and high-quality protein. China is the birthplace of tofu.
Popsicle is a kind of food that people all over the world like to quench their thirst and relieve summer heat. It originated in China. In Yuan Shizu during Kublai Khan's time, there was a kind of food similar to ice cream called ice cream.
5. Coca-Cola,1886 On May 8, Coca-Cola was born in Atlanta, Georgia, USA.
6. Refrigeration, using ice to reduce temperature and preserve food can be traced back to prehistoric times. Mechanical refrigeration technology was formed in the middle of18th century, and did not grow until19th century.
Household refrigerators came out in the early 20th century. In the long historical process, cold storage technology has enabled human beings to preserve food and its nutrition. At the same time, it also made another creation of human civilization realize cold beer.
brief introduction
Invention is the process and achievement of using natural laws to solve unique problems in the technical field and put forward innovative schemes and measures.
In order to meet the needs of people's daily life, the invention provides an unprecedented model of artificial natural objects, new processes and methods for processing and manufacturing, as well as innovations and transformations of mechanical equipment, instruments and various consumer goods, related manufacturing processes, production processes and detection control methods.
In the field of intellectual property rights, invention is one of the patent types protected by the patent law, which refers to a new technical scheme proposed for a product, method or its improvement.