Wang Jin-Mei, Li Chang-Qin, Kang Wen-Yi
Institute of Chinese Materia Medica, Henan University, Kaifeng 475004, China.
Zhongguo Zhong Yao Za Zhi. 2012 Nov;37(21):3185-7.
To predict the stable life for Mentha haplocalyx.
The volatiles in M. haplocalyx were analyzed by head-space solid micro-extraction, coupled with GC-MS and a comprehensive evaluation of essential oil in M. haplocalyx was analyzed using the factor analysis. The prediction was carried out by initial average rate stability tests using the content of essential oil and the main volatiles as indices.
Principal component analysis indicated that pulegone and isomenthone can fully describe the quality of prepared slices. The t(0.9, 20 degrees C) was 5.49 years and 2.88 years respectively, carried out by essential oil, pulegone and isomenthone.
The stable life for M. haplocalyx under 20 degrees C was 2.88 years.
预测薄荷的稳定期。
采用顶空固相微萃取结合气相色谱-质谱联用技术分析薄荷中的挥发成分，并运用因子分析法对薄荷挥发油进行综合评价。以挥发油含量及主要挥发成分作为指标，通过初匀速稳定性试验进行预测。
主成分分析表明，胡薄荷酮和异薄荷酮能充分表征薄荷饮片的质量。以挥发油、胡薄荷酮和异薄荷酮进行预测，在20℃时t(0.9, 20℃)分别为5.49年和2.88年。
薄荷在20℃下的稳定期为2.88年。
