Marine biorefinery: an environmentally sustainable solution to turn marine biomass and processing wastes into value-added products and profits

Nguyễn, Trung Thành; Sperou, Niki; Su, Peng; Zhang, Wei

doi:10.1042/bio_2022_105

Cited by 2 publications

(4 citation statements)

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“…Co-fermentation can improve the efficiency and stability of the bioprocess, as well as the quality and quantity of the final products [201]. It can also reduce the environmental impact of marine biomass disposal and contribute to the circular bioeconomy [202]. The bio-conversion of marine biomass has been discussed using different processes, such as co-digestion of seaweed and lipid-rich waste [203], co-digestion of microalgae and sewage sludge for biogas production [204], co-digestion of seaweed and cheese whey [205], co-pyrolysis of seaweeds with waste plastic [206], and hydrothermal co-liquefaction of seaweeds with lignocellulosic biomass [207].…”

Section: Co-fermentationmentioning

confidence: 99%

Exploring the Prospects of Fermenting/Co-Fermenting Marine Biomass for Enhanced Bioethanol Production

Osman,

Abo-Shady,

Elshobary

et al. 2023

Fermentation

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With the rising demands for renewable fuels, there is growing interest in utilizing abundant and sustainable non-edible biomass as a feedstock for bioethanol production. Macroalgal biomass contains a high content of carbohydrates in the form of special polysaccharides like alginate, agar, and carrageenan that can be converted to fermentable sugars. In addition, using seagrass as a feedstock for bioethanol production can provide a sustainable and renewable energy source while addressing environmental concerns. It is a resource-rich plant that offers several advantages for bioethanol production, including its high cellulose content, rapid growth rates, and abundance in coastal regions. To reduce sugar content and support efficient microbial fermentation, co-fermentation of macroalgae with seagrass (marine biomass) can provide complementary sugars and nutrients to improve process yields and economics. This review comprehensively covers the current status and future potential of fermenting macroalgal biomass and seagrass, as well as possible combinations for maximizing bioethanol production from non-edible energy crops. An overview is provided on the biochemical composition of macroalgae and seagrass, pretreatment methods, hydrolysis, and fermentation processes. Key technical challenges and strategies to achieve balanced co-substrate fermentation are discussed. The feasibility of consolidated bioprocessing to directly convert mixed feedstocks to ethanol is also evaluated. Based on current research, macroalgae-seagrass co-fermentation shows good potential to improve the bioethanol yields, lower the cost, and enable more optimal utilization of diverse marine biomass resources compared to individual substrates.

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Section: Co-fermentationmentioning

confidence: 99%

Exploring the Prospects of Fermenting/Co-Fermenting Marine Biomass for Enhanced Bioethanol Production

Osman,

Abo-Shady,

Elshobary

et al. 2023

Fermentation

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show abstract

“…Marine environment, with the depth reaching beyond 10 km, covers more than 70% of the Earth's surface, and it is the natural habitat for over one billion microbial species and thousands of macroscopic species [39,40]. It is estimated that all marine organisms make up approximately 50% of the global biodiversity.…”

Section: Potential Of Marine Resources For Biofuel Productionmentioning

confidence: 99%

“…These marine organisms have diverse biochemical compositions and can be used for outstanding bioactivities and nutraceutical enriching profiles due to their excellent adaption to a wide-range of variations in the marine environment. More than 30,000 marine-derived bioactive compounds described so far have been used as valuable sources of food bioactive ingredients, nutraceuticals, cosmeceuticals, pharmaceuticals, and many other applications [39]. In recent years, photoautotrophic organisms have been discussed as a promising candidate for energy sustainable production, with more interest dedicated to algal biomass as third-generation biofuel feedstocks [38,20,41].…”

Section: Potential Of Marine Resources For Biofuel Productionmentioning

confidence: 99%

“…Seaweed biomass can be obtained primarily from naturally-grown seaweed by wild harvesting or through aquaculture-based production in seaweed farming. Comparatively, wild harvesting is limited and cannot meet the growing industry demand [39]. Therefore, a marine-based biorefinery system for seaweed farming could be a practical solution towards sustainable climate mitigation as well as water, energy, and food security.…”

Section: Natural Resources Of Marine Biorefinerymentioning

confidence: 99%

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Integrated Marine Biogas: A Promising Approach towards Sustainability

et al. 2022

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Fossil fuel depletion, climate change, and increased global energy demands are the driving forces to find alternative sources of energy. Marine-based biorefinery has been recently discussed as a promising route to mitigate the environmental challenges, enhance the energy recovery, and provide a potential source for value-added products. Anaerobic digestion is a promising technology that can convert the organic compounds of marine ecosystems into biogas. To date, a comprehensive review incorporating integrated biogas potential and effective approaches to enhance seaweed digestibility for biogas production from marine resources has not been reported. Thus, the present review aims to explore and comprehensively present seaweed and other marine resources for potential biogas production. The basics and challenges of biogas production from seaweed are elucidated. The impact of biochemical composition on biogas and the microbial communities involved in anaerobic digestion of seaweed are discussed. Utilization of different techniques such as pretreatment, co-digestion, and sequential extraction of seaweed biomass to enhance the biogas yield and to mitigate the effect of inhibitors are presented. Specifically, this article evaluates the co-digestion of seaweed with other biomass feedstocks or liquid biowastes. Integration of marine microalgae cultivation on anaerobic digestate for value-added compound production, biogas upgrading, and bioenergy recovery provides a promising approach towards a zero-waste marine-based system.

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Marine biorefinery: an environmentally sustainable solution to turn marine biomass and processing wastes into value-added products and profits

Cited by 2 publications

References 0 publications

Exploring the Prospects of Fermenting/Co-Fermenting Marine Biomass for Enhanced Bioethanol Production

Exploring the Prospects of Fermenting/Co-Fermenting Marine Biomass for Enhanced Bioethanol Production

Integrated Marine Biogas: A Promising Approach towards Sustainability

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