Optimization of β-carotene from ’ataulfo’ mango (Mangifera indica L.) by-products using ultrasound-assisted extraction

Abstract

The present study investigated β-carotene content of 'Ataulfo' mango by-products, obtained from a local industry. β-carotene was evaluated by HPLC-PDA. Extraction ofyJ-carotene from mango peel and paste was optimized using ultrasound-assisted extraction (UAE). The influence of three independent variables was evaluated: extraction time (min, XET), sonication amplitude sonication amplitude (%, XSA), and pulse cycle (XPC). The β-carotene extraction was optimized using a response surface methodology. The optimal conditions to achieve the maximal content of β-carotene were XET (30 min). XSA (30%). XPC (0.8) for both byproducts. Experimental results (peel 19.13 ± 0.41 mg/g dry weight (DW) and paste 6.60 ± 1.60 mg/g DW) correlated positively (R=0.99) with predicted values. The extraction efficiency of β-carotene was significantly higher in UAE than conventional solvent extraction. These results indicate that UAE of β-carotene from mango peel and paste can be used to improve the yield in the extraction of carotenoids in mango by-products.