Enhancement of fermentable sugar yields by α-xylosidase supplementation of commercial cellulases

Table 1 Monomer sugar composition of plant materials used in this study

Plant material	Glc	Xyl	Ara^a	Man^a	Gal	Total
pea XG	226 ± 19.0	287 ± 25.2	127 ± 8.1	8.5 ± 0.6	75 ± 6.0	72.4%
tamarind XG ^b	471 ± 8.3	351 ± 9.2	23 ± 2.1	0.0	155 ± 5.3	100%
etiolated peas	281.6 ± 12.0	49.4 ± 4.4	55.8 ± 4.8		48.3 ± 2.2	43.5%
green peas	106.7 ± 12.0	19.6 ± 0.7	30.8 ± 2.0		23.7 ± 2.7	18.1%
corn stover	391.5 ± 0.35	194.7 ± 10.9	33.3 ± 5.3		9.4 ± 2.3	62.9%
lamb’s quarters	170.1 ± 1.7	30.2 ± 0.03	24.6 ± 0.64		14.4 ± 0.14	23.9%

^aThe HPLC protocol could not resolve Ara and Man. Pea and tamarind XG’s were analyzed by gas chromatography of alditol acetates after hydrolysis with trifluoroacetic acid [17].
^bFrom ref. 6.
All values (± 1 SD, n = 3) are expressed as mg/g dry weight. Materials were dried but otherwise not processed by washing or other fractionation before acid hydrolysis. “Total” indicates the percentage of the original dry weight accounted for by the indicated neutral sugars.

ISSN: 2731-3654