| In order to utilize water hyacinth efficiently and relieve the shortage of protein resources,a preliminary study on the extraction process of leaf protein from water hyacinth by heating,flocculation of calcium chloride and gluconolactone and direct fermentation respectively.The study results showed that the optimum temperature range of the heating method was 70~80 ℃,the optimal added amount of calcium chloride and gluconolactone were 0.2% and 0.1% respectively,the optimum fermentation time was 24~48 h.The sequence in accordance with the merits of the extraction effect was heating method,calcium chloride flocculation,gluconolactone flocculation and the direct fermentation method. |