Valorization of sugar beet pulp to value-added products: A review

• Published in: Bioresource technology 2022-02, Vol.346, p.126580-126580, Article 126580
• Main Authors: Usmani, Zeba, Sharma, Minaxi, Diwan, Deepti, Tripathi, Manikant, Whale, Eric, Jayakody, Lahiru N., Moreau, Benoît, Thakur, Vijay Kumar, Tuohy, Maria, Gupta, Vijai Kumar
• Format: Article
• Language: English
• Subjects: Beta vulgaris; Biochemical valorization; Bioethanol production; Biofuels; Biotechnology; Enzymatic hydrolysis; Hydrolysis; Hydrothermal treatment; Sugar beet pulp; Sugars
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2021.126580

[Display omitted] •Sugar beet pulp is a sustainable lignocellulosic source for pectin based compounds.•Super- and subcritical water hydrolysis can improve reducing sugar yield.•Value added chemicals and products can be derived from sugar beet pulp hydrolysis.•Biorefinery setup in combination with power and heat generation is possible. The processing of sugar beet in the sugar production industry releases huge amounts of sugar beet pulp as waste which can be considered a valuable by-product as a source of cellulose, hemicellulose, and pectin. Valorization of sugar beet pulp into value added products occurs through acid hydrolysis, hydrothermal techniques, and enzymatic hydrolysis. Biochemical conversion of beet pulp into simple fermentable sugars for producing value added products occurs through enzymatic hydrolysis is a cost effective and eco-friendly process. While beet pulp has predominantly been used as a fodder for livestock, recent developments in its biotechnological valorization have unlocked its value as a feedstock in the production of biofuels, biohydrogen, biodegradable plastics, and platform chemicals such as lactic acid, citric acid, alcohols, microbial enzymes, single cell proteins, and pectic oligosaccharides. This review brings forward recent biotechnological developments made in the valorization of sugar beet pulp into valuable products.