Journal of the Indian Academy of Wood Science

, Volume 14, Issue 2, pp 127–132 | Cite as

Characterization of apricot kernel shells (Prunus armeniaca) by FTIR spectroscopy, DSC and TGA

Original Article
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Abstract

Several types of apricot kernel cultivated in Syria were used in this study in order to clarify differences in their thermal and chemical properties. Chemical and thermal properties were monitored by FTIR, DSC, TGA techniques. Chemical analysis showed that all types of kernel shells from different sources possessed the same structure. However, the thin brown layer (skin) that covers the kernel had some chemical structure differences in comparison to its shell. The decomposition of the kernel shell showed three steps of degradations at 75, 260 and 450 °C related to the removal of water, degradation of cellulose and lignin, respectively. Additional step was observed at ~ 178 °C in particles smaller than 250 µm related to the removal of incorporated water. The kernel skin showed the same thermal properties in degradation with shifting to lower temperature.

Keywords

Apricot pit shell Kernel skin FTIR Cellulose Hemicellulose Lignin Thermal decomposition DSC 

Notes

Acknowledgements

The authors would like to thank Prof. Dr. I. Othman (D. G. of AECS) for his encouragement. Our thanks are extended to Dr. M. Albachir and Dr. Y. Koudsi for much appreciated supports, and to Dr. Antonions AL-Daoud for his highly appreciated help in language editing.

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Copyright information

© Indian Academy of Wood Science 2017

Authors and Affiliations

  1. 1.Industrial Irradiation Division, Department of Radiation TechnologyAtomic Energy Commission of SyriaDamascusSyria
  2. 2.Faculty of PharmacyInternational University of Sciences and Technology (IUST)DamascusSyria
  3. 3.Environmental Applications Division, Department of Radiation TechnologyAtomic Energy Commission of SyriaDamascusSyria

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