Holding the stem bitter leek sashimi, also known as bitter dish, has the effect of detoxifying heat, excreting sepsis, and pain relief. Modern studies have found that it increases coronary flow, improves cardio-circulatory, inhibits platelet aggregation, and increases fibrin dissolving enzymes. Its main active ingredient is flavonoids. Suzhou Bojie Resin Technology Co., Ltd. to provide large-hole adsorption resin for the purification of stem bitter leeks, large-hole adsorption resin has the advantages of large adsorption capacity, fast adsorption speed, good selectivity, simple regeneration and so on, widely used in the separation and purification of flavonoid substances, can achieve industrial production.