... : heat, light, air, acid, alkali, metal, andbacterial contamination12) So fresh bee royal jelly must be kept closely tight, and in ... powder is made by freezing, using vacuumsublimation and drying fresh bee royal jelly at -35oC, removingmoisture without breaking activity ... with significant effect14) Superior quality, must be made of fresh bee royal jelly with superior quality as rawmaterials15) Through ...