Abstract：
:Pentose-rich hydrolysate obtained from dilute acid pretreatment of oil palm empty fruit bunches was successfully consumed by pentose-consuming yeasts: Cyberlindnera jadinii (Cj) and Pichia jadinii (Pj). Nitrogen supplementation and no additional detoxification step were required. Pj produced 5.87 g/L of biomass using a C/N ratio of 14 after 120 h of fermentation, with xylose consumption of 71%. Cj produced 10.50 g/L of biomass after 96 h of fermentation with C/N ratio of 11.5, with maximum xylose consumption of 85%. β-glucans, high value-added macromolecules, were further extracted from the yeast biomass, achieving yields of 3.1 and 3.0% from Pj and Cj, respectively. The isolated polysaccharides showed a chemical structure of β-(1,3)-glucan with residues of other molecules. Additionally, β-(1,6) branches seems to have been broken during isolation process. Further studies assessing β-glucans production at industrial scale should be carried out looking for nitrogen sources and optimizing the β-glucan isolation method.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Camargo Guarnizo AF,Woiciechowski AL,Noseda MD,Zevallos Torres LA,Zandona Filho A,Pereira Ramos L,Letti LAJ,Soccol CRdoi
10.1016/j.biortech.2020.124212subject
Has Abstractpub_date
2021-01-01 00:00:00pages
124212issue
Pt Aeissn
0960-8524issn
1873-2976pii
S0960-8524(20)31486-3journal_volume
320pub_type
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