利用超临界CO_2技术萃取红酵母β-胡萝卜素

The Extraction of β-carotene in the Red Yeast Cells by Supercritical Carbon Dioxide Technology

初步尝试了利用超临界CO2萃取技术从红酵母中提取β-胡萝卜素的效果。结果表明:红酵母经酸-热法破壁后,在所确定的最适萃取条件下(萃取压力30 MPa、温度40℃、CO2流量20 kg/h、萃取时间90 min),β-胡萝卜素萃取率可达0.83%。这说明利用超临界CO2萃取红酵母β-胡萝卜素有一定的可行性,但萃取率较低,对影响萃取的各种因素有待今后深入探讨。

The extraction of β-carotene in the red yeast cells by supercritical carbon dioxide（SC-CO2） was studied.The determined conditions by the orthogonal design experiments were as follows：extraction press of 30 MPa,temperature 40 ℃,CO2 volume of 20 kg/h and extraction time of 90 min.The extraction ratio of β-carotene is 0.83 %.Using SC-CO2 technology for extracting β-carotene in the yeast cells is possible,but some factors of influencing the extraction should be further investigated.