| 摘要 |
In one embodiment a process for preparing a soy protein concentrate of good quality and yield from soybean white flakes without the need to screen out fines and dust from the soybeans white flakes before aqueous alcohol extraction is provided. The process includes extracting the soybean white flakes with hexane in a continuous counter current hexane extractor to remove the oil, partially stripping the hexane from the deoiled flakes under mild condition so as not to toast, cook or denature the protein, and without harsh mechanical handling, providing deoiled flakes, and delivering the flakes directly to an aqueous alcohol extractor to extract the residual hexane, sugars and other aqueous alcohol soluble material, to obtain a soy protein concentrate of good quality and yield. |
