Applied Technology to Produce Chlorella Jelly Genki in Order to Increase Human Body Immunity from Covid-19 Illness

The Covid-19 was first confirmed in Indonesia on 2 March 2020. The pandemic has spread to 34 provinces in country with Jakarta, West Java, East Java and Riau being the worst hit. So far, Indonesia has 3,693,272,616 cases, the 6th highest in world behind America, India, Brasil, and Turkey. So it is very important to increase the human body immunity by absorbing CO₂, haze, dust, tiny particle, and Covid-19, and producing O₂ in the surrounding area and Chlorella powder as supplement food to prevent fatality of the human being. The Dahril Bottle is a place to culture Chlorella sp. in a closed room to absorb CO₂, haze, dust, tiny particle, COVID-19, and produce O₂ in the surrounding area and Chlorella powder that can be used as supplement food to increase the immunity of human body from COVID-19 illness. Based on the result of this study it is indicated that Chlorella with chlorophyll-a inside can grow well in the Dahril Bottle to absorb CO₂ and produce O₂ with a chemical reaction as follow, 6CO₂ + 6H₂O→C₆H₁₂O₆ + O₂↑. The high concentration of cell density was found 1.2 × 10⁷ cells/mL, chlorophyll-a concentration of 184.09 µg/L, and Chlorella powder, 1.25 g/L, and CO₂ decreased from 18.36 mg/L to 1.24 mg/L or 93.34%, O₂ increased from 3.76 mg/L to 6.21 mg/L or 65.15%. The chemical compound of Chlorella powder was also high with a protein level of 45.09%, lipid 10.85%, and carbohydrate 12.77%. They also contain: vitamin E, mineral, beta-carotene, and antioxidant essence. Chlorella Jelly Genki that is made in this study can be used as a supplement food to increase the immunity of the human body to prevent Covid-19 illness.