Microalgae based biorefinery promoting circular bioeconomy-techno economic and life-cycle analysis

Biotechnological valorization of algal biomass: an overview

“…Algal biomass is referred as 3G feedstock due to its high biomass productivity than plant-based lignocellulosic biomass [24]. Initially, studies were majorly focused towards the biodiesel production, wherein certain limitations were allied in terms of low yields and high-cost involvement specifically during the downstream process [9,11]. Recently, research trends are directed towards the utilization of algal biomass as feedstock for multiple biobased products synthesis due to its renowned carbohydrate and protein content (Table 1 and Fig.…”

“…Wherein, 0.38-0.46 g ethanol/g glucose was resulted and, thus, corresponds to 76% and 92% theoretical convention efficiency. Although lignocellulosic biomass is present in large quantities, major limitations are associated with biomass pretreatment, lower sugar yields and lignin interferences [11]. Alternatively, lignin-free microalgal biomass could be as a potential resource for bioethanol production.…”

“…4). Current algal cultivation methods are incidentally practicing towards the single product approach, integration of which multiple biological processes facilitates the commercial viability [11]. Therefore, switching towards environmental sustainability and biobased economy with efficient integrated processes needs to be developed embedded with effective resource recovery [14].…”

“…Nevertheless, the establishment of integrated or combined bioprocess using algal biomass facilitates the entirety use of biomass along with multiple biobased product synthesis. A recent study published by Banu et al [11] reported the potential of microalgal biorefinery process towards the biobased economy contributions with different biorefinery approaches.…”

Design of Value Chains for Microalgal Biorefinery at Industrial Scale: Process Integration and Techno-Economic Analysis

“…Currently, most applications of microalgal biomass are still for food, feed, and high value applications (Vandermeulen et al, 2012;Vigani et al, 2015;Rajesh Banu et al, 2020). The economic potential of various microalgae products has been studied previously by several authors (Davis et al, 2014;Gong and You, 2015;Quinn and Davis, 2015;Dong et al, 2016;Thomassen et al, 2016;Laurens et al, 2017;Asiedu et al, 2018;DeRose et al, 2019).…”