RESUMO
Objective: To establish the process technology for vinegar-steamed Cyperi Rhizoma and provide a reference for improving the quality of vinegar-steamed Cyperi Rhizoma. Methods: Using extract detection, and volatile oil content detection analysis method, the influences of materials rice vinegar dilution times, moistening time, steamed pressure, temperature, and time on the quality of vinegar-steamed Cyperi Rhizoma were investigated. Results: The appearance and index components of vinegar-steamed Cyperi Rhizoma obtained from different processing technologies were compared. The results showed that the best effect was obtained through taking the vinegar with 20% weight of medicine, diluting by the vinegar with 20% weight of water to homogenization, and moistening for 70 h under the condition of steaming pressure 0.10 MPa, temperature of 110°C, steaming for 4.5 h (big medicinal materials) or 4 h (small medicinal materials). Conclusion: The processing technology is stable and reliable. Compared with the processing technology in Chinese Pharmacopoeia 2010, the present technology could be better for the quality control of vinegar-steamed Cyperi Rhizoma and provide the scientific basis for processing vinegar-steamed Cyperi Rhizoma.