... extracting essential oil, natural pigment, amylose, flavone and ISO 9001:2008 ultrasonic extracion equipmentBasic structure: ... oscillator system includes transducer, booster, horn (probe) and generator.Frequency range: 15KHz20KHz28 KHz30 KHz35 KHz40 KHz50 ... used in exacting essential oils, natural pigment, amylose, flavone, alkaloids, polyphenol, organic acids and oils, ultrasonic cells smash. ...