Comparison of various organic acids for xylo-oligosaccharide productions in terms of pKa values and combined severity.

ABSTRACT:

Background

Methods to produce XOS have been intensively investigated, including enzymatic hydrolysis, steam explosion, and acid hydrolysis. Acid hydrolysis is currently the most widely used method to produce XOS due to its advantages of fewer processing steps, stronger raw material adaptability, higher yield, and better reproducibility. Especially, organic acids such as acetic acid, formic acid and xylonic acid work better as compared with mineral acids. However, the catalytic mechanism of different organic acids has been little studied. In this paper, four different organic acids, including formic acid, glycolic acid, lactic acid, and acetic acid were selected to compare their hydrolytic effects.

Results

Using pKa values as the benchmark, the yield of xylo-oligosaccharide (

SUBMITTER: Cao R 

PROVIDER: S-EPMC7968336 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature