Soy products with reduced levels of sulfite, free radicals and methanethiol

Abstract

Soy products or compositions are treated with a food grade iodate compound or a cystine compound to reduce levels of methanethiol, sulfites and sulfite free-radicals, sulfate free radicals and other free radicals generated from sulfite free radicals in the soy products or compositions by 1% to 95%.

1 - 11 . (canceled) 
     
     
         12 . A product comprising Isolated Soy Protein (ISP) treated with a food grade iodate wherein said ISP has lower levels of sulfite and free radicals relative to untreated ISP and wherein said ISP comprises from 0.2 to 73 parts per million iodine. 
     
     
         13 . The product of  claim 12 , wherein the levels of sulfite and free radicals in the ISP are reduced by 1% to 95% relative to untreated ISP. 
     
     
         14 . The product of  claim 13 , wherein the levels of sulfite and free radicals in the ISP are reduced by 95%. 
     
     
         15 . (canceled) 
     
     
         16 . A product comprising ISP treated with a food grade iodate compound wherein said ISP has less than the naturally occurring levels of methanethiol relative to untreated ISP and wherein said ISP comprises from 0.2 to 73 parts per million iodine. 
     
     
         17 . The product of  claim 12 , wherein the level of methanethiol in the ISP is reduced from 1% to 95% relative to untreated ISP. 
     
     
         18 . The product of  claim 17 , wherein the levels of sulfite and free radicals in the ISP are reduced by 95%. 
     
     
         19 . (canceled) 
     
     
         20 . Iodine-treated isolated soy protein (ISP) comprising 0.2 to 73 parts per million iodine and reduced levels of sulfite and free radicals relative to ISP that is not iodine treated. 
     
     
         21 . The ISP of  claim 20  wherein the ISP is prepared by a process comprising the step of treating an aqueous slurry comprising soy protein obtained from defatted soy flour or flakes with a food grade iodate to provide an ISP comprising from 0.2 to 73 parts per million iodine