Effect of multiple product extractions on bio-methane potential of marine macrophytic green alga Ulva lactuca

Mhatre, Apurv; Gore, Suhas; Mhatre, Akanksha; Trivedi, Nitin; Sharma, Manju; Pandit, Reena; Anil, Annamma; Lali, Arvind

doi:10.1016/j.renene.2018.08.012

Cited by 55 publications

(30 citation statements)

References 49 publications

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“…Their research provided an example of maximizing the utilization of green seaweeds in an ecofriendly and sustainable way [ 23 ]. Mhatre et al [ 24 ] explored strategies for improving biogas production from green seaweed Ulva lactuca . The individual and sequential extractions were conducted to investigate the influence of removal of sap, which contains valuable minerals that are essential for growth of agricultural crops, ulvan, and protein on methane yields.…”

Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

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A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

et al. 2020

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This short review analyzed the recent trend towards, progresses towards the preparation of chemicals of, and value-added biomaterials from marine macroalgae resources, especially green seaweeds and their derived ulvan polysaccharides for various applications. In recent years, ulvan both in pristine and modified forms has gained a large amount of attention for its effective utilization in various areas due to its unique physiochemical properties, lack of exploration, and higher green seaweed production. The pristine form of ulvan (sulfated polysaccharides) is used as a bio-component; food ingredient; or a raw material for the production of numerous chemicals such as fuels, cosmetics, and pharmaceuticals, whereas its modified form is used in the sector of composites, membranes, and scaffolds, among others, because of its physicochemical properties. This review highlights the utilization of green seaweed and its derived ulvan polysaccharides for the preparation of numerous chemicals (e.g., solvents, fuel, and gas) and also value-added biomaterials with various morphologies (e.g., gels, fibers, films, scaffolds, nanomaterials, and composites).

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Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

“…The extractions prior to anaerobic digestion not only improved the methane productivity, but also provided high-value products such as sap, protein, and ulvan. The proposed strategy makes the biomethane production process more efficient and sustainable [ 24 ].…”

Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

et al. 2020

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“…Depending on seaweed types and species, products such as fatty acids, oils, natural pigments, antioxidants, and high-value biological components can be extracted with organic 'leftovers' aimed for biomethane production [107]. Mhatre et al [108] explored the BMP after extraction of potential AD inhibitors ('sap', protein and ulvan) and reported an increased methane output of 408 mL CH 4 g −1 VS (70.9% of maximum theoretical) observed in the residue where 'sap' (a mineral-rich extract) and ulvan had been removed compared to 211 mL CH 4 g −1 VS for the untreated biomass. Tedesco and Daniels [109] also concluded that the residues from seaweed following solvent extraction are more suitable for biogas production than fresh or drift seaweed substrates alone.…”

Section: Seaweed Biogasmentioning

confidence: 99%

A Brief Review of Anaerobic Digestion of Algae for Bioenergy

et al. 2019

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The potential of algal biomass as a source of liquid and gaseous biofuels has been the subject of considerable research over the past few decades, with researchers strongly agreeing that algae have the potential of becoming a viable aquatic energy crop with a higher energy potential compared to that from either terrestrial biomass or municipal solid waste. However, neither microalgae nor seaweed are currently cultivated solely for energy purposes due to the high costs of harvesting, concentrating and drying. Anaerobic digestion of algal biomass could theoretically reduce costs associated with drying wet biomass before processing, but practical yields of biogas from digestion of many algae are substantially below the theoretical maximum. New processing methods are needed to reduce costs and increase the net energy balance. This review examines the biochemical and structural properties of seaweeds and of microalgal biomass that has been produced as part of the treatment of wastewater, and discusses some of the significant hurdles and recent initiatives for producing biogas from their anaerobic digestion.

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“…In addition to the three widely used methods, other methods include multilevel extraction, using water followed by NaCO 3 and NaOH solvents, with a 3.14-6.50% yield. There is also a sequential extraction method that involves acidic solutions and ammonium oxalate with an average ulvan yield [45].…”

Section: Extractionmentioning

confidence: 99%

Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

et al. 2020

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The species of green macroalga belonging to the genus Ulva (family: Ulvaceae) are utilized in various fields, from food supplements to biomedical applications. Ulvan, a polysaccharide obtained from various Ulva species, has shown various biological activities, including antioxidant, anti-inflammatory, anticancer, antibacterial, and antiviral activities. To obtain the polysaccharide ulvan that can be utilized in various fields, it is necessary to understand the critical points that affect its physicochemical nature, the extraction procedures, and the mechanism of action for biological activities. This article discusses the physicochemical properties, extraction, isolation and characterization procedures and benefits in food and biomedical applications of ulvan. In conclusion, ulvan from Ulva sp. has the potential to be used as a therapeutic agent and also as an additional ingredient in the development of tissue engineering procedures.

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Effect of multiple product extractions on bio-methane potential of marine macrophytic green alga Ulva lactuca

Cited by 55 publications

References 49 publications

A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

A Brief Review of Anaerobic Digestion of Algae for Bioenergy

Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

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