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Soybean Straw as a Feedstock for Value-Added Chemicals and Materials: Recent Trends and Emerging Prospects

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Author(s):
Ardila Gonzalez, Paula Gixina ; de Jesus Gariboti, Julio Cesar ; Leal Silva, Jean Felipe ; Lopes, Emilia Savioli ; Abaide, Ederson Rossi ; Lopes, Melina Savioli ; Cardenas Concha, Viktor Oswaldo ; Felisbino, Romilda Fernandez ; Gomes, Eliezer Ladeia ; Tovar, Laura Plazas
Total Authors: 10
Document type: Journal article
Source: BioEnergy Research; v. N/A, p. 24-pg., 2022-09-01.
Abstract

Soybean straw is an agricultural residue of soybean whose yield is up to 1.5 kg per kg of soybean. The existing literature shows the vast potential of soybean straw as an environmentally friendly carbon source to produce value-added chemicals, materials, fuels, and energy in a similar way to oil refineries. However, the use of this biomass on a commercial scale in biorefineries still faces some challenges. This comprehensive review discusses the available literature in several topics related to the application of this agricultural residue, such as productive potential; quality of feedstock; feedstock delivery; challenges in the breakdown of the cell wall polymeric structure; conversion process into chemicals, heat, and power; and the production of advanced materials. Several examples of fiber treatment are presented to demonstrate the potential of taking advantage of the mechanical properties of soybean straw. Current knowledge gaps and challenges related to the conversion of soybean straw to fermentable sugars and the low performance of hydrolysate fermentation are discussed, besides other applications in the sugar platform. Thermochemical conversion is discussed as well because of the possibility of readily employing this biomass in co-processing plants. In the end, an outlook of potential directions for future research towards the next generation of integrated soybean/soybean straw biorefinery is presented to demonstrate the potential of further developing applications for this biomass. (AU)

FAPESP's process: 16/10450-1 - Process development for sugarcane conversion to ethyl levulinate: a route for a viable biodiesel additive
Grantee:Jean Felipe Leal Silva
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 15/20630-4 - Biorefinery development integrated to a bioethanol sugar cane plant with zero CO2 emission: routes to convert renewable resources to bio-products and bio-electricity
Grantee:Rubens Maciel Filho
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 12/10857-3 - MODELING AND EVALUATION OF DIFFERENT OPERATING PROCESS FOR PRE-TREATMENT, HYDROLYSIS AND FERMENTATION FOR 2G ETHANOL PRODUCTION
Grantee:Laura Plazas Tovar
Support Opportunities: Scholarships in Brazil - Post-Doctoral