Dec. 6, 2021 — A type of marine algae recognized as ulva, or “sea lettuce,” which is a food plan staple in areas like Japan, New Zealand, and Hawaii may have another profit for people today. Lab experiments counsel that ulvan, an extract from this sort of algae, might assistance fight COVID-19.
Other kinds of edible seaweed have also shown guarantee as antivirals towards COVID — at the very least in very early studies accomplished in examination tubes and animals. But ulvan has been analyzed as an antiviral treatment towards sure agricultural and human viruses, too. This induced researchers to question regardless of whether ulvan may well assist reduce COVID infections.
To obtain out, experts grew ulva algae in a lab, extracted ulvan, and then exposed cells in check tubes to both of those the coronavirus and to ulvan. When cells ended up exposed to ulvan, they did not get contaminated with the coronavirus, in accordance to experiment effects documented inPeerJ.
In Test Tubes
That said, it’s possible that the course of action utilized to extract ulvan from seaweed may perhaps influence its antiviral homes. Investigators in contrast two extraction methods and discovered 1 of them resulted in ulvan with more than 10 situations the virus-battling electrical power. This suggests that a lot more research is desired to refine the finest process to build ulvan with the finest antiviral qualities, the researchers position out.
Just one restrict of the experiment is that differences in the chemical makeup of the two extracts may have motivated the final result, producing it challenging to know for positive how a great deal of the antiviral activity could possibly appear directly from ulvan as opposed to these chemicals.
And even if the seaweed extract proves productive in more lab exams, it would nonetheless will need to be tested in animals and individuals. But need to it demonstrate effective in human trials, seaweed extract has the prospective to help prevent COVID infection in persons who simply cannot simply afford or accessibility vaccines, specially in small-earnings international locations, the examine authors conclude.