Biological processes for advancing lignocellulosic waste biorefinery by advocating circular economy

Impact ofin vitrogastrointestinal digestion on the chemical composition, bioactive properties, and cytotoxicity ofVitis viniferaL. cv.Syrahgrape pomace extract

“…Circular Economy has been receiving increasing attention over the last decade, as it brings together both agroindustrial sustainability and social-economic concerns, throughout the looking for innovative solutions for waste disposal, taking advantage of renewable resources, while improving both anthropological and environmental health. [1][2][3] Agriculture and food processing industries produce the most significant and promising by-products, which, despite all their biological potential for food, cosmetic or nutraceutical applications, are being used as plant fertilizers or animal feed, or simply incinerated. 4 Grapes are one of the most cultivated fruit crops worldwide, with ca.…”

Co‐Expression of ORFCma with PHB Depolymerase (PhaZCma) in Escherichia coli Induces Efficient Whole‐Cell Biodegradation of Polyesters

“…Whole‐cell degradation has several advantages. Not only could this method bypass the tedious process of disrupting cells to release intra‐cellular components, or the multiple separation steps needed for the purification of enzymes, the process is ecologically friendly and the degraded product can be reused as a nutrient by the bacteria, or even in other applications …”

“…Not only could this method bypass the tedious process of disrupting cells to release intra-cellular components, or the multiple separation steps needed for the purification of enzymes, the process is ecologically friendly and the degraded product can be reused as a nutrient by the bacteria, or even in other applications. [41,42] Whole-cell degradation results showed that while C. manganoxidans required 3 days to completely degrade PHB, improvement was achieved when the depolymerase was overexpressed in E. coli/ pORFPHAZ, to reach complete degradation within 20 h. PHB can be degraded by most of polyester-degrading microorganisms followed by PCL and PBSA. [43] However, the degradation of PLA by polyester-degrading microorganism is more challenging.…”

Integrated biorefinery from Arthrospira platensis biomass as feedstock for bioethanol and lactic acid production

“…A biorefinery is an industrial plant, in which all the components of biomass are converted into a range of biochemicals, materials, and energy products, and byproducts of a process are used as raw materials for another production process, aiming at a zero-waste biorefinery as pillar of circular economy (Liguori et al, 2013;Liguori & Faraco, 2016). This approach can be applied to improve the economic balance of biofuel production from cyanobacteria, through co-production of high-value metabolites from the same microorganisms, generating an integrated biorefinery for sustainable production of biofuels while exploiting other traditional cyanobacterial applications.…”