Due to the increasing demand for green and sustainable analytical methods, many researchers have been using various attempts improve design environmentally friendly chemical processes. Based on literature, most of agreed that DESs is one attractive solutions chemicals due its classification as a solvent safe use low flammability characteristic. Although studies benefits advantageous implementat...

In this study, the solubilization of waste coarse wool as a precursory step for large-scale valorization keratin was investigated using green deep eutectic solvent (DES) based on L-cysteine and lactic acid. The investigation undertaken via response surface methodology Box–Behnken design four process variables temperature (70–110 °C), dissolution time (2–10 h), mass (0.5–2.5 g) in 20 mL acid, lo...