SILVER WATER PROPOLIS EXTRACT Russian patent published in 2023 - IPC A23L21/20 

FIELD: food industry.

SUBSTANCE: proposed aqueous extract of propolis contains propolis, royal jelly, cluster silver and water as initial components in the following ratio of initial components, by % of weight: propolis - 15.0 - 40.0; royal jelly - 1.0 - 6.0; cluster silver - 0.006 - 0.04; water is the rest. Moreover, the extract is obtained by placing propolis in an enamelled container, adding distilled water, heating to 60°C and boiling for 180 minutes. Then it is poured into a dark opaque glass container and allowed to stand for 48 hours, poured into an enamelled container, heated to 80°C, boiled for 180 minutes, poured into a dark opaque glass container and allowed to stand for 48 hours, in the third phase the broth is again placed in an enamelled container, boiled at 60°C for 180 minutes and allowed to stand for 48 hours. Then it is filtered through a fine sieve, cleaned of mechanical contamination - propolis particles, the purified extract is poured into a dark opaque glass container, royal jelly, cluster silver are added, stirred until evenly dissolved, left for 5 hours to settle and packaged. Preferably, the propolis extract additionally contains calcium alginate from kelp in the amount of 11% by weight.

EFFECT: invention is aimed at increasing the antiviral activity of propolis extract.

2 cl, 3 tbl, 6 ex