JIAO Huan-ran,ZHANG Min-min,ZHAO Heng-qiang,et al.Effect of Different Hot Air Drying Methods on Chemical Constituents of Trichosanthis Fructus[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(23):137-144.
JIAO Huan-ran,ZHANG Min-min,ZHAO Heng-qiang,et al.Effect of Different Hot Air Drying Methods on Chemical Constituents of Trichosanthis Fructus[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(23):137-144. DOI: 10.13422/j.cnki.syfjx.20211652.
Effect of Different Hot Air Drying Methods on Chemical Constituents of Trichosanthis Fructus
To compare the effects of different drying methods on the chemical constituents of Trichosanthis Fructus.
Method
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Trichosanthis Fructus was dried by means of air drying, sun drying, hot air drying (40, 60, 80 ℃) and variable temperature drying (50-80, 80-50 ℃). The contents of nucleosides and flavonoids in Trichosanthis Fructus peels and seeds treated by different methods were compared by high performance liquid chromatography (HPLC), mobile phase was acetonitrile-0.2% acetic acid aqueous solution (3∶7) (A)-acetonitrile (B) for gradient elution (0-15 min, 97-95%B; 15-30 min, 95%-90%B; 30-35 min, 90%-87%B; 35-40 min, 87%-86.5%B; 40-48 min, 86.5%-97%B; 48-50 min, 97%B), the detection wavelength was 260 nm, and the flow rate was 0.4 mL·min
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. Gas chromatography-ion mobility spectrometry (GC-IMS) was used to compare the changes of volatile components in the samples treated by different treatments. The volatile components were incubated on a SE-54 capillary column (0.32 mm×30 m, 0.25 μm) at 80 ℃ and 500 r·min
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for 15 min, the injection temperature was 85 ℃, the injection volume was 400 μL, the analysis time was 35 min, carrier gas was high purity nitrogen, the flow rate of carrier gas was 2.0 mL·min
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, the flow rate of drift gas was 150 mL·min
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, and the temperature of IMS detector was 45 ℃.
Result
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The contents of uridine, adenosine and adenine were higher after hot air drying at >50 ℃. Low temperature drying was conducive to maintaining the stability of cytidine, cytosine, rutin, luteolin and 2ʹ-deoxyadenosine. GC-IMS technology could realize the analysis and identification of Trichosanthis Fructus samples after different treatments. There were more volatile components after hot air drying at 80 ℃ and variable temperature drying.
Conclusion
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Hot air drying at 40 ℃ and 60 ℃ can retain nucleosides and flavonoids, and the volatile components are similar to those in traditional drying methods, which has the advantages of high efficient, controllable and suitable for industrial production.
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Related Author
WANG Yuchen
ZHANG Minmin
MA Wenya
ZHAO Hengqiang
LIU Jun
CUI Li
WANG Xiao
Jing-wen FENG
Related Institution
Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center
Key Laboratory of Standardization of Chinese Herbal Medicine,Ministry of Education, State Key Laboratory of Southwestern Chinese Medicine Resources,School of Pharmacy, Chengdu University of Traditional Chinese Medicine
Sichuan Institute for Food and Drug Control
Institute of Chinese Materia Medica,China Academy of Chinese Medical Sciences
Henan Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yuyao,Henan Research Center for Special Processing Technology of Chinese Medicine,Henan University of Chinese Medicine