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Chemistry and Industry of Forest Products ›› 2021, Vol. 41 ›› Issue (4): 35-41.doi: 10.3969/j.issn.0253-2417.2021.04.006

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Preparation and Slow-release Properties of Cinnamomum cassia Leaves Essential Oil/β-Cyclodextrin Microcapsules

Guoliang LI, Xiangping LIU()   

  1. College of Animal Science and Technology, Heilongjiang Bayi Agricultural University; Heilongjiang Provincial Key Laboratory of Efficient Utilization of Feed Resources and Nutrition Manipulation in Cold Region, Daqing 163319, China
  • Received:2020-11-29 Online:2021-08-28 Published:2021-08-31
  • Contact: Xiangping LIU E-mail:lxp110@hotmail.com

Abstract:

In order to further broaden the application of Cinnamomum cassia leaves essential oil in food, feed and other fields, C. cassia leaves essential oil/β-cyclodextrin microcapsules were prepared by co-precipitation method with β-cyclodextrin as the wall material and C. cassia essential oil as the core material. The preparation conditions of microcapsules were optimized by orthogonal experimental design. Essential oil/β-cyclodextrin microcapsules were characterized by using gas chromatography-mass spectrometry(GC-MS) and Fourier transform infrared spectroscopy(FT-IR).The results showed that the suitable preparation conditions of microcapsules were wall-core ratio 6:1, temperature 50℃, time 4 h and stirring speed 1 000 r/min. The encapsulation efficiency of C. cassia essential oil of the obtained microcapsule was 74.17%. The GC-MS analysis showed that the main compositions of C. cassia essential oil were trans-cinnamaldehyde(81.39%), followed by o-methoxycinnamaldehyde(7.61%) and the main compositions of C. cassia essential oil in the microcapsule were also trans-cinnamaldehyde(78.68%) and o-methoxycinnamaldehyde(9.34%). FT-IR analysis showed that C. cassia leaves essential oil and β-cyclodextrin formed good inclusion complex. C. cassia leaves essential oil/β-cyclodextrin microcapsules had good thermal stability and slow-release properties.

Key words: Cinnamomum cassia leaves, essential oil, β-cyclodextrin, microcapsules, slow-release

CLC Number: