On October 30th, astronaut Chen Dong lost weight in cardiovascular research at Tiangong No. 2 Science. This is Chen Dong introduced the laser Doppler probe. According to reports, this is the first time in China to use laser Doppler probes in space. Chen Dong found two "arteries" when he was doing a neck artery examination in a weightless state of space. Food And Beverage Additive is a nonnutritional substance that is added consciously, generally in small amounts, to food to improve its appearance, flavor, structure, or storage properties.According to this definition, food fortifiers with the purpose of enhancing the nutritional content of food should not be included in the scope of food additives.Food additives have the following three characteristics: one is to add to the food of the material, therefore, it is generally not eaten alone as food;Second, it includes both synthetic substances and natural substances.Third, it is added to the food for the purpose of improving the quality of food and color, aroma, taste and for the need of anti-corrosion, preservation and processing technology. Food And Beverage Additive,Natural sweeteners, natural sweeteners, natural colors,thickner PYSON Co. ,Ltd. , https://www.pysonbio.com