Objective: To optimize the extraction process of the seed-soil from Morus alba L. by SoxhLet with hexane. Method: Crushed seeds from Morus alba

and extracted the seed-oil with hexane. Orthogonal design was used to optimize the extraction process of the seed-soil from Morus alba With the yield of seed-oil as index. Four factors were investigated to determine the optimum extraction process

which including extraction solvent

refluxing temperature

extraction time

solvent volume. Result: The order of factors which affected extracting was: refluxing temperature

extraction time

solvent volume. The optimum extraction process was to reflux the seeds at 80 ℃

extraction time was 4 h with 24 times amount of hexane. The extraction rate was 32.33%. Conclusion: The optimum extraction process is achieved

which is stable

feasible

energy-saving

short production cycle

high extraction efficiency

suitable for industrialization.