A GREEN DEEP EUTECTIC SOLVENT-BASED ULTRASOUND-ASSISTED METHOD TO EXTRACT ASTAXANTHIN FROM SHRIMP BYPRODUCTS

The extraction of valuable compounds from waste products using green and inexpensive solvents is a significant strategy for sample preparation. Accordingly, in the present study, the use of deep eutectic solvents, an emerging green approach, was used to extract astaxanthin, a well-known and widely-used antioxidant, from shrimp byproducts. After evaluating different combinations of extraction conditions and deep eutectic solvents, an ultrasonication method was established and optimized by a systematic investigation of the influencing factors. A comparison of the amount of astaxanthin (102g g(-1) ) extracted using a traditional organic solvent, ethanol, showed that more astaxanthin (146g g(-1) ) was obtained using the reported eco-friendly method. The excellent properties of deep eutectic solvents highlight their advantages as promising inexpensive green solvents for the extraction and determination of a range of bioactive compounds from natural products.