Xylooligosaccharides: A Bibliometric Analysis and Current Advances of This Bioactive Food Chemical as a Potential Product in Biorefineries’ Portfolios

Abstract

Xylooligosaccharides (XOS) are nondigestible compounds of great interest for food and pharmaceutical industries due to their beneficial prebiotic, antibacterial, antioxidant, and antitumor properties. The market size of XOS is increasing significantly, which makes its production from lignocellulosic biomass an interesting approach to the valorization of the hemicellulose fraction of biomass, which is currently underused. This review comprehensively discusses XOS production from lignocellulosic biomass, aiming at its application in integrated biorefineries. A bibliometric analysis is carried out highlighting the main players in the field. XOS production yields after different biomass pretreatment methods are critically discussed using Microsoft PowerBI® (2.92.706.0) software, which involves screening important trends for decision-making. Enzymatic hydrolysis and the major XOS purification strategies are also explored. Finally, the integration of XOS production into biorefineries, with special attention to economic and environmental aspects, is assessed, providing important information for the implementation of biorefineries containing XOS in their portfolio.

Optimization Production of an Endo-β-1,4-Xylanase from Streptomyces thermocarboxydus Using Wheat Bran as Sole Carbon Source

“…The presence of this xylose peak after 2 h implies that the exo-enzyme activity gradually manifested, providing insights into the enzyme's versatility in catalyzing both endo-and exotype reactions during xylan hydrolysis. Numerous xylanases from Streptomyces have also been reported to primarily generate X2 and X3 during xylan hydrolysis [21,[46][47][48][49]. Low-molecular-weight XOSs, including X2 and X3, present significant commercial value as emerging prebiotics [50].…”

Life Cycle Analysis of Succinic Acid Production in the Brazilian Biorefinery Context

“…The processes described by Efe et al [12] allow for the conversion of sugarcane sucrose into SA, which allows for the integration of the process into ethanol distilleries, increasing the product portfolio of the plant. Including value-added products in a biorefinery's portfolio can help make it economically feasible, as it contributes significantly to the plant's profitability [13].…”