2013•Zhongguo youzhiRequires access
Ultrasonic-assisted extraction of tea seed protein
Liu Jinyong
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Abstract
The influencing factors including ultrasonic frequency,granularity of material,extraction temperature,extraction time,solid-liquid ratio and extraction pH were studied in the ultrasonic-assisted extraction process of tea seed protein.The results indicated that the most significant factor was extraction pH,followed by extraction temperature,extraction time,liquid-solid ratio and ultrasonic frequency,and the optimal extraction conditions were as follows: ultrasonic frequency 35 kHz,granularity of material 60 mesh,extraction pH 9.5,solid-liquid ratio 1∶ 14,extraction temperature 45 ℃,extraction time 1.5 h.Under the optimal conditions,the extraction rate of tea seed protein could reach 89.01% and the content of protein was 76%.