Journal: Journal of Agricultural and Food Chemistry
Article Title: Production of Xylooligosaccharides (XOSs) with Anti-inflammatory and Prebiotic Activities Using Recombinant Endo-1,4-β-xylanases from Bacillus subtilis
doi: 10.1021/acs.jafc.5c13633
Figure Lengend Snippet: Bioconversion of xylan to XOS by MBP- Bs XynA11 and Bs XynA11-His. TLC analysis of XOS converted by MBP- Bs XynA11 (A) and Bs XynA11-His (B) after 1–48 h conversion. XOS standards (X1–X6) and control (B = blank) are shown. The corresponding XOS bioconversion yield (%) and concentration (g/L) for MBP- B sXynA11 (C) and B sXynA11-His (D), based on HPLC quantification after 48 h. Columns represent yield, while concentration is shown as the lines. Profile of XOS released from beechwood xylan by MBP- B sXynA11 (E) and B sXynA11-His (F) under varying reaction conditions. Enzymatic hydrolysis was performed using beechwood xylan concentrations of 1, 2, and 4% (w/v) and enzyme doses of 500–1500 U/mL at 40 °C and 900 rpm in citrate–phosphate buffer (pH 6.5) for 48 h. The resulting XOSs were quantified by HPLC using xylose (X1), xylobiose (X2), xylotriose (X3), xylotetraose (X4), xylopentaose (X5), and xylohexaose (X6) as standards (0–1.67 g/L).
Article Snippet: Small-scale bioconversion of XOS was conducted in a 1.5 mL Eppendorf tube.
Techniques: Control, Concentration Assay