[Study on extraction technology of soyasaponins from residual of bean ware].

ABSTRACT

OBJECTIVE: To find out the optimum extraction technology of soyasaponins from residual of bean ware. METHODS: The optimum extraction conditions were investigated by the orthogonal design, and the content of soyasaponins was determined by UV-spectro-pho-tometry. RESULTS: The optimum extraction technology was A3B1C1, that is adding 7 times and 6 times amount of 70% alcohol and refluxing for two times and each time for 1.0 h. CONCLUSION: The selected technology showed higher yield of soyasaponins, good stability and high efficient.