Countries use coffee by-products to develop drinks

Recently, Belgium has made a material from the pulp of a new variety of white coffee, which has the same ingredients as ordinary coffee, but milky white, easy to digest and absorb, and has a variety of health functions. The creators have not only broadened the utilization of waste pulp, but also used this raw material to make coffee soda, which is quite suitable for athletes and people with indigestion.

Not long ago, Japan's New Century Food Company developed a "coffee spray drink" using waste coffee powder, which has recently become a bestseller in the market. This new type of beverage is an espresso liquid in a spray aluminum can. The nozzle at the top of the container can spray a concentrated fog of coffee with a touch of the hand, which can be directly sprayed into the entrance or diluted with water or hot water. The process of using waste coffee liquid to produce spray drink concentrate has no contact with air all the time, makes use of overpressure effect, and uses carbonate gas to seal aluminum cans to prevent oxidation, which is comparable to high-grade fresh coffee.

Therefore, the wine with unique flavor can be made by using the waste pulp of coffee. Studies by experts in Zaire show that about 15 kilograms of coffee pulp can produce 1 kilogram of alcohol with a concentration of 90 percent. Zaire pioneered the production of "Robosta" coffee wine, clear and transparent, with strong aroma of delicious coffee, has been well-known in Europe and the United States in the past two years.

After the wastewater from wet processing coffee is concentrated and fermented, 4.6% acetic acid can be obtained. A Japanese condiment company is the first to use its refined coffee vinegar with high taste price and rich nutrition, which has become popular in the international market.

The development of new technology in India shows that the mucus produced by wet processing of coffee berries can extract high-taste pectin. Pectin is an important raw material used in food, beauty and pharmaceutical industries. 50 to 120 grams of pectin can be extracted per kilogram of fresh coffee berries.

German scientists have also developed the process of making caffeine from coffee waste and scraps, and obtained a more efficient process. Caffeine has developed ideal uses in animal husbandry and veterinary medicine, human cancer prevention and family planning. Caffeine is also used in beverages and medicine because of its exciting and refreshing effect.

An American company using discarded coffee pulp to extract protein has entered large-scale production. And developed a number of new technologies for the application of coffee protein, such as the use of cooling template and extrusion method to produce meat-like protein products; the use of coffee 7s part of the enzyme modified into egg white products; these products are new raw materials and ingredients for the food industry.

Brazilian researchers have successfully used waste coffee powder to extract high-grade edible oil and have planned large-scale production.