The research on extracting oil from watermelon seeds by aqueous enzymatic extraction method

Abstract Watermelon kernels were used as raw materials in this study and treated with ultrasound. The effects of different factors on oil extraction from watermelon kernel were studied during the experiments. The optimum parameters obtained form single-factor experiments and response surface method optimization were as follows: enzyme additive amount 2.63%, hydrolysis temperature 47.13 °C, hydrolysis time 4.29 h, materials to water rate 1:4.35 and pH 7.89. The optimum oil extraction under the above optimum condition was 97.92%.