Biowaste Valorisation in a Future Circular Bioeconomy

Vea, Eldbjørg Blikra; Romeo, Daina; Thomsen, Marianne

doi:10.1016/j.procir.2017.11.062

Cited by 89 publications

(48 citation statements)

References 28 publications

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“…A simplified revenue analysis was conducted according to a valorization method that was previously applied to biowaste [ 16 ]. We considered the most simple and immediate scenarios of Phase I biorefineries, which use only one feedstock and only have a single major product at a time [ 17 ].…”

Section: Methods and Datamentioning

confidence: 99%

Biomolecular Composition and Revenue Explained by Interactions between Extrinsic Factors and Endogenous Rhythms of Saccharina latissima

Zhang

Thomsen

2019

Marine Drugs

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This review provides a systematic overview of the spatial and temporal variations in the content of biomolecular constituents of Saccharina latissima on the basis of 34 currently-available scientific studies containing primary measurements. We demonstrate the potential revenue of seaweed production and biorefinery systems by compiling a product portfolio of high-value extract products. An investigation into the endogenous rhythms and extrinsic factors that impact the biomolecular composition of S. latissima is presented, and key performance factors for optimizing seaweed production are identified. Besides the provisioning ecosystem service, we highlight the contribution of green-engineered seaweed production systems to the mitigation of the ongoing and historical anthropogenic disturbances of the climate balance and nutrient flows. We conclude that there are risks of mismanagement, and we stress the importance and necessity of creating an adaptive ecosystem-based management framework within a triple-helix partnership for balancing the utilization of ecosystem services and long-term resilience of aquatic environment.

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Section: Methods and Datamentioning

confidence: 99%

Biomolecular Composition and Revenue Explained by Interactions between Extrinsic Factors and Endogenous Rhythms of Saccharina latissima

Zhang

Thomsen

2019

Marine Drugs

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“…The use of renewable raw materials and fossil resources to produce new products is a pillar of a circular economy. Examples of products based on this type of raw material are biological surface active compounds [ 5 , 13 ]. Agricultural waste and food processing by-products can serve as a carbon source for the processes of microbial biosurfactant production, due to its availability and low costs (they constitute 30–50% of municipal solid wastes) [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…Examples of products based on this type of raw material are biological surface active compounds [ 5 , 13 ]. Agricultural waste and food processing by-products can serve as a carbon source for the processes of microbial biosurfactant production, due to its availability and low costs (they constitute 30–50% of municipal solid wastes) [ 13 ]. Simultaneously, this may generate an environmental friendly method of waste disposal [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Biosurfactant from endophytic Bacillus pumilus 2A: physicochemical characterization, production and optimization and potential for plant growth promotion

et al. 2021

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Background Microbial surfactants called biosurfactants, thanks to their high biodegradability, low toxicity and stability can be used not only in bioremediation and oil processing, but also in the food and cosmetic industries, and even in medicine. However, the high production costs of microbial surfactants and low efficiency limit their large-scale production. This requires optimization of management conditions, including the possibility of using waste as a carbon source, such as food processing by-products. This papers describes the production and characterization of the biosurfactant obtained from the endophytic bacterial strain Bacillus pumilus 2A grown on various by-products of food processing and its potential applications in supporting plant growth. Four different carbon and nitrogen sources, pH, inoculum concentration and temperature were optimized within Taguchi method. Results Optimization of bioprocess within Taguchi method and experimental analysis revealed that the optimal conditions for biosurfactant production were brewer’s spent grain (5% w/v), ammonium nitrate (1% w/v), pH of 6, 5% of inoculum, and temperature at 30 °C, leading to 6.8 g/L of biosurfactant. Based on gas chromatography–mass spectrometry and Fourier transform infrared spectroscopy analysis produced biosurfactant was determined as glycolipid. Obtained biosurfactant has shown high and long term thermostability, surface tension of 47.7 mN/m, oil displacement of 8 cm and the emulsion index of 69.11%. The examined glycolipid, used in a concentration of 0.2% significantly enhanced growth of Phaseolus vulgaris L. (bean), Raphanus L. (radish), Beta vulgaris L. (beetroot). Conclusions The endophytic Bacillus pumilus 2A produce glycolipid biosurfactant with high and long tem thermostability, what makes it useful for many purposes including food processing. The use of brewer’s spent grain as the sole carbon source makes the production of biosurfactants profitable, and from an environmental point of view, it is an environmentally friendly way to remove food processing by products. Glycolipid produced by endophytic Bacillus pumilus 2A significantly improve growth of Phaseolus vulgaris L. (bean), Raphanus L. (radish), Beta vulgaris L. (beetroot). Obtained results provide new insight to the possible use of glycolipids as plant growth promoting agents.

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“…These two cycles have tighter links than originally assumed. Firstly, because of the natural composition and technological design of products ; and, secondly, because of the nature of their waste streams (Kabongo, 2013;Vea et al, 2018;.…”

Section: Introductionmentioning

confidence: 99%

Influential factors for value creation within the Circular Economy: Framework for Waste Valorisation

Leder

Kumar

Rodrigues

2020

Resources, Conservation and Recycling

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The present trend towards greener and less-waste intensive production methods, has started to establish the idea of a Circular Economy. However, in achieving circularity, obstacles need to be overcome and new business models need to be developed. One of these business model is Waste Valorisation. Waste Valorisation focuses on the transformation of alleged waste, by-products or residue into valuable material. This paper aims to establish the current view on Waste Valorisation models and explore any influential factors within this circular business model through the lens of social capital theory. The findings are based on a focus group discussion with academics, practitioners, and policy makers. Results indicate, collaborative aspects aid to create value within this specific business model, as well as technology can act as a facilitator for collaboration between stakeholders in realizing the benefits of Waste Valorisation model. Based on the findings, a theoretical framework was developed which can be used as a guide to develop further research on waste valorization.

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Biowaste Valorisation in a Future Circular Bioeconomy

Cited by 89 publications

References 28 publications

Biomolecular Composition and Revenue Explained by Interactions between Extrinsic Factors and Endogenous Rhythms of Saccharina latissima

Biomolecular Composition and Revenue Explained by Interactions between Extrinsic Factors and Endogenous Rhythms of Saccharina latissima

Biosurfactant from endophytic Bacillus pumilus 2A: physicochemical characterization, production and optimization and potential for plant growth promotion

Influential factors for value creation within the Circular Economy: Framework for Waste Valorisation

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