Bioeconomic production of high-quality chitobiose from chitin food wastes using an in-house chitinase from Vibrio campbellii

Bioresources and Bioprocessing

Table 1 Quantitation of chitooligosaccharide products obtained from the hydrolysis of different polysaccharides by VhChiA

Substrate	Hydrolytic product
	(GlcNAc)₂		(GlcNAc)₃		(GlcNAc)₅
	Peak area (a.u.)^a	% yield	Peak area (a.u.)^a	% yield	Peak area (a.u.)^a	% yield
Microcrystalline cellulose	0	0	0	0	0	0
Mannan	0	0	0	0	0	0
Partially deacetylated chtin	2800	35	2600	33	2600	33
Colloidal chitin	3480	61	2200	39	0	0

The intensities of migrating sugar spots were measured after 24 h of reaction for each polysaccharide, using ImageJ software (https://imagej.nih.gov/ij/)
^aa.u. represents arbitrary unit