Cellulosic pine needles-based biorefinery for a circular bioeconomy

•Chemical composition, physicochemical properties and extraction of nano cellulose.•Need of pine needles valorisation and their utilisation in multidimensional fields.•Pine needles role as antibacterial, bio-catalyst, reinforcing and adsorbing agents.•Potential of Pine needles in comparison to other biomasses in multiple applications.•Current challenges in utilisation and future prospectus of Pine needles wastes.