“…The article provides a novel way to construct a Lyapunov function and a new method to deal with fractional-order inequalities, which may be applied to discuss other properties or analyze other more complex systems such as the fractional-order form of the model explored in the literatures Chandrasekar and Rakkiyappan ( 2016 ), Lou et al. ( 2013 ), Shang ( 2014 , 2015 , 2016 ), Wang et al. ( 2003 ), Yang and Tong ( 2016 ) and so on.…”