Biomedical subjects

Zi-min Yuan

Publications and source records attributed to Zi-min Yuan.

3 recordsLinked to original sources

PubMed2006

[Comparing analysis of components in volatile oils of nutmeg and prepared nutmeg by GC-MS].

OBJECTIVE: To compare components in volatile oils of nutmeg and prepared nutmeg. METHOD: Volatile oil from nutmeg and prepared nutmeg were extracted by vapor distillation. The chemical components in two kinds of volatile oils were determined and indentified by GC-MS. RESULT: The change in quantity and quality of components in volatile oils were observed after processing. 13 new components occurred and 4 components disappeared in volatile oils after processing. The contents of methyleugenol and methylisoeugenol that are active ingredients were increased. The contents of myristicin and safrol that are toxic ingredients in volatile oils were decreased. CONCLUSION: The processing method of nutmeg by soaking with water and roasting with bran is scientific.

Allylbenzene Derivatives↗

PubMed2004

[Study on the rapid and nondestructive identification of TCM formula particles by FTIR].

Formula particles made by Traditional Chinese Medicines (TCM) were studied systematically via Fourier Transform Infrared Spectroscopy (FTIR) in this paper. The products quality of different pharmaceutical factories (Guangdong Yifang, Jiangyin Tianjiang, Sanjiu Yiyao, Hongkong Purapharm) could be revealed directly in the FTIR spectra. Also the spectra of different batch numbers (same factory), particles before and after processing, and particles with different processing methods were studied. It is proved that FTIR is an effective, fast and advanced method to evaluate the production qualities.

Drugs, Chinese Herbal↗

PubMed2003

[FTIR and classification study on trueborn tuber dioscoreae samples].

To identify the origin of tuber dioscoreae, 45 samples were studied by soft independent modeling of class analogy (SIMCA) in this paper. The combination of Fourier transform infrared spectroscopy (FTIR) with mathematic method was used to classify the trueborn and non-trueborn samples. The samples were chosen randomly as modeling group and predicting group. The correctness of classification was 70%. This approach was proved to be a reliable and practicable method for trueborn quality analysis of tuber dioscoreae.

Dioscorea↗