Abstract
The effects of diatomite, activated clay and acticarbon on the decolorization of orange essential oil were investigated. Single factor and orthogonal tests were performed to determine the optimum discoloring conditions. The results showed that the activated clay exhibited the most satisfactory effect on discoloring. Then it was used as the decolorizer for the decolorization of orange essential oil. The highest decolorization rate (84.5%) was obtained using 10% activated clay at 60 °C for 30 min. The contents of oxygenated compounds (linalool and citral) increased from 1.4 to 3.1% after decolorization. Sensory assessment revealed that the orange essential oil after decolorization using activated clay had a mellow and characteristic orange aroma. Chromaticity analysis showed that it had excellent transparency and yellow color under the optimized condition. Thus, decolorization with activated clay could maintain the quality and prolong the storage of orange essential oil.
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12 June 2018
In the original version of these 14 articles the reference list was unfortunately not represented according to the journal’s new bibliographical style, which should have been implemented from January 2018.
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Acknowledgements
This study was supported by the National key Research and Development Program of China (2017YFD0400101), National Natural Science Foundation of China (Program No. 31671824), the Major Scientific and Technological Innovation Project in Hubei Province (2015ABA035, 2016ABA112).
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Ren, JN., Zhang, Y., Fan, G. et al. Study on the optimization of the decolorization of orange essential oil. Food Sci Biotechnol 27, 929–938 (2018). https://doi.org/10.1007/s10068-018-0354-9
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DOI: https://doi.org/10.1007/s10068-018-0354-9