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Profiles of volatile compounds and sensory characteristics of Robusta coffee beans roasted by hot air and superheated steam (SCOPUS)

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Research Article: Profiles of volatile compounds and sensory characteristics of Robusta coffee beans roasted by hot air and superheated steam
Author: Nathamol Chindapan, Chanakan Puangngoen and Sakamon Devahastin
Email: nathamol.chi@siam.edu
Department/Faculty: Department of Food Technology, Faculty of Science,  Siam University, Bangkok 10160
Published: International Journal of Food Science and Technology, 2021, 56(8), pp. 3814–3825

Citation

Chindapan, N., Puangngoen, C., & Devahastin, S. (2021). Profiles of volatile compounds and sensory characteristics of Robusta coffee beans roasted by hot air and superheated steam. International Journal of Food Science and Technology, 56(8), 3814–3825. Retrieved from https://doi.org/10.1111/ijfs.14997


ABSTRACT

Although superheated steam (SHS) roasting has proved to be capable of improving selected quality of roasted Robusta coffee beans, impact of SHS roasting on aroma characteristics of the beans is not well understood. This study therefore aimed to investigate the effect of SHS roasting on aroma profiles and sensory characteristics of Robusta beans undergone SHS roasting at 190-250 °C; results were compared with those of beans roasted by hot air (HA). Sensory characteristics of selected samples were also compared with HA-roasted Arabica beans. Forty five aroma compounds were identified; most were fully developed in beans roasted at 230 °C and tended to degrade in beans roasted at 250 °C. SHS roasting led to more extensive formation of aroma compounds contributing to caramel note, while helped reduce formation of major contributors to spicy, roasty and burnt notes. SHS-roasted Robusta beans exhibited more resemblance to Arabica beans than their HA-roasted counterpart.

Keywords: Aroma, Coffea canephora, Fluidization, GC-MS, Phenolic compounds.


Profiles of volatile compounds and sensory characteristics of Robusta coffee beans roasted by hot air and superheated steam

Faculty of Science, Siam University, Bangkok, Thailand