Prof. C. Xu et al. , have been reported on “Waste-to-wealth: biowaste valorization into valuable bio(nano)materials” in Chemical Society Reviews on September 2019 [1] . They mentioned that “The waste-to-wealth concept aims to promote a future sustainable lifestyle where waste valorization is seen not only for its intrinsic benefits to the environment but also to develop new technologies to treat waste to generate energy, recycle materials, livelihoods, jobs and extract resources of value”.   Figure 1. Waste to wealth. Source In recent years, the potential of biowastes (BW) has received increasing attention by academic and industrial communities aiming to identify strategies to convert low-value waste into new materials and products, and concurrently, developing technologies and business models based on waste-to-value enterprises by the integration of biowaste processing within biorefinery schemes has been described [2] .   Figure 2. Most common and widely available bi...