Abstract:

        This paper presents a rapid detection method for the composition of corn steep water and provides the basis for optimal control of steeping process.We employ biosensors and an automatic analyzer to determine the contents of reducing sugar, glucose and lactic acid in corn steep water and present their variation rule. Detection results show that the content of reducing sugar, glucose and protein initially decreases and then increases, but the content of lactic acid initially increases and then decreases. Moreover, this biosensor detection method has less error and offers simpler operation, so rapid detection goal can be achieved.

Key words: corn steep water, biosensor, protein, reducing sugar, glucose, lactic acid