Analysis of Casein Biopolymers Adsorption to Lignocellulosic Biomass as a Potential Cellulase Stabilizer

Table 3

Comparison of soluble casein or skim milk proteins after 72 h of incubation with lime-, alkali-, dilute acid-, and extrusion-pretreated corn stover determined with BSA assay.

Pretreatment	Soluble skim milk proteins (%)			Soluble casein proteins (%)
	24 h	48 h	72 h	24 h	48 h	72 h
Dilute acid	29	<1	<1	21	<1	<1
Lime	55	15	18	5.6	5.2	<1
Alkali	90	22	14	65	3.1	<1
Extrusion	92	25	10	55	8.6	<1
AFEX	97	28	15	30	3.5	<1
Raw	91	<1	15	49	2.5	<1