Objective: To choose the optimum initial processing methods of Rheum palmatum.
Methods: Fresh crude Rheum palmatum was sliced and dealt with the different drying methods such as sun drying, shady drying, microwave heating and various temperatures drying. The content of the Anthraquinones derivatives, slicing colors and dried rates were used as evaluation indexes. The sliced Rheum palmatum was compared with the traditional processing.
Results: Sliced fresh crude Rheum palmatum had the low content of the Anthraquinones derivatives and dry rates, slicing colours had obviously changes. For various drying methods, smoking drying was superior to sun drying, shady drying, microwave heating and various temperatures drying methods.
Conclusion: Fresh crude Rheum palmatum is not suitable for slicing processing. The best drying method is smoking drying.
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Int J Rheum Dis
January 2025
Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China.
Int J Rheum Dis
January 2025
Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology; State Key Laboratory of Complex Severe and Rare Diseases; Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China.
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Rheumatology Department, Hospital Universitario "Dr. José Eleuterio González", Universidad Autónoma de Nuevo León, Monterrey, Mexico.
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Department of Endocrinology, Metabolism, Nephrology, and Rheumatology, Kochi Medical School Hospital, Kochi University, Nankoku, Kochi, Japan.
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Department of Dermatology, University of California San Diego, San Diego, California, USA.
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