Valorization of sugar beet pulp through biotechnological approaches: recent developments

Area of Science:

• Biotechnology
• Biorefining
• Agricultural By-products

Background:

• Sugar beet pulp (SBP) is a major lignocellulosic by-product from sugar processing.
• Traditionally used as livestock feed due to digestible fibers like pectin and glucans.
• Growing interest in SBP valorization for sustainable bio-production.

Purpose of the Study:

• To review recent developments in the biotechnological valorization of sugar beet pulp.
• To highlight SBP's potential as a cost-effective substrate for various bio-based products.
• To explore emerging applications of SBP in fermentation and biorefining.

Main Methods:

• Literature review of recent scientific publications on SBP biotechnological applications.
• Analysis of SBP composition and its suitability as a substrate.
• Identification of key biotechnological conversion pathways and products.

Main Results:

• SBP serves as a versatile substrate for producing microbial enzymes, single-cell protein, ethanol, biogas, hydrogen, lactic acid, ferulic acid, and pectic oligosaccharides.
• SBP's fiber content (cellulose, hemicellulose, pectin) is amenable to microbial and enzymatic breakdown.
• SBP can be utilized as a carrier for cell immobilization in bioprocesses.

Conclusions:

• Biotechnological valorization offers significant potential for converting SBP into high-value products.
• Advancements in processing technologies enhance SBP's utility in biorefineries.
• Sustainable utilization of SBP aligns with circular economy principles and reduces industrial waste.