Immobilization of Papain on Chitin and Chitosan and Recycling of Soluble Enzyme for Deflocculation of Saccharomyces cerevisiae from Bioethanol Distilleries

Table 3

Percentage of S.  cerevisiae cells deflocculation, yeast precipitation, and turbidity measured in 600 nm by spectrophotometry.

Total turbidity (600 nm)	Yeast deflocculation (%)	Yeast precipitation
≤12.0	0	p^2
27.0	25.0	np^3
40.5	37.5	np
54.0	50.0	np
67.5	62.5	np
81.0	75.0	np
94.5	87.5	np
≥120.0^1	100	np

¹Maximum deflocculation of 30% (w⋅v⁻¹) yeast cell solution by sulfuric acid; ²p = cells precipitated in the bottom of the suspension; ³np = cells suspended in liquid.