... shows that 80mg daily consumption of saponin (equivalent to 0.5g asparagus powder), has a significant effect on strengthening ... milk can improve sleep quality . Standard of instant asparagus powder: Saponin≥15%,Polysaccharide≥ 8%, Polyphenol≥ 4%, flavonoid≥2%. Queen ... of vegetables—asparagus, rich in saponin,polysaccharides, flavonoid, polyphenol, are very popular in Japan and ...