MEDINA SARAH,GOSNELL BRANDY,GREEN BRENT E.,SEGALL KEVIN I.,SCHWEIZER MARTIN
申请号：
NZ59783810
公开号：
NZ597838A
申请日:
2010.06.30
申请国别(地区):
NZ
年份:
2014
代理人:
摘要：
NZ 597838 Disclosed is a method of producing a soy protein product with a protein content of at least about 60 wt% (N x 6.25) d.b., which includes: (a) extracting a soy protein source with water, optionally containing an antioxidant, at a temperature of at least about 1°C to cause solubilisation of soy protein in the soy protein source and to form an aqueous protein solution having a protein content of about 5 to about 50 g/L and a pH of about 1.5 to about 11, (b) separating the aqueous protein solution from residual soy protein source, (c) optionally treating the aqueous protein solution with an adsorbent to remove colour and/or odour compounds from the aqueous protein solution, (d) increasing the protein concentration of the aqueous protein solution to about 50 to about 400 g/L, while maintaining the ionic strength substantially constant by using a selective membrane technique employing a membrane having a molecular weight cut-off of about 3,000 to about 1,000,000 Daltons to provide a concentrated protein solution, (e) optionally diafiltering the concentrated protein solution using water or dilute saline solution, before or after complete concentration thereof using from about 2 to about 40 volumes of diafiltration solution using a membrane having a molecular weight cut-off of about 3,000 to about 1,000,000 Daltons, (f) optionally pasteurizing the concentrated and optionally diafiltered protein solution at a temperature of about 55° to about 70°C for about 30 seconds to about 60 minutes followed optionally by cooling to a temperature of about 20°C to about 35°C, (g) adding calcium salt solution to the concentrated and optionally diafiltered protein solution to a conductivity of about 5 to about 30 mS to cause a precipitate to form in the concentrated protein solution, (h) removing the precipitate from the concentrated protein solution, (i) diluting the clarified concentrated protein solution into about 2 to about 20 volumes of water having a temperature of about 2
