... At the same time ,instant asparagus powder can improve sleep quality. Asparagus powder is suitable for production of asparagus oral ... dinner milk,asparagus yogurt.Besides, asparagus powder, in conjunction with collagen, can be used to produce beauty drinks.Asparagus ... sleep, and asparagus dinner milk can improve sleep quality . Standard of instant asparagus powder: Saponin≥15%,Polysaccharide≥ 8%, ...