Algae and their growth requirements for bioenergy: a review

Badar, Sharifah Najiha; Mohammad, Masita; Emdadi, Zeynab; Yaakob, Zahira

doi:10.1080/17597269.2018.1472978

Cited by 18 publications

(6 citation statements)

References 199 publications

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“…Bioreactors can also reduce contamination but require significantly higher capital expenditures as well as significant operating expenses to maintain adequate control over mixing, gas exchange, and temperature. This can be several orders of magnitude higher than open ponds and photobioreactors ( 82 ). Heterotrophic growth also requires the addition of a carbon source, which also increases the cost of culture media and drives the cost of these combined inputs much higher than that of photosynthetic-based systems ( 83 ).…”

Section: Resource Use For Algae Cultivation and Comparison To Traditi...mentioning

confidence: 92%

“…Maintenance of the algal cultures can require various energy inputs. The main processes that require energy inputs for production are: culture mixing for aeration, maintaining culture temperature, harvesting (dewatering), and processing into the required product format ( 82 ). Additional energy requirements can differ greatly depending on whether photosynthetic or heterotrophic growth are being implemented.…”

Section: Resource Use For Algae Cultivation and Comparison To Traditi...mentioning

confidence: 99%

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Developing algae as a sustainable food source

et al. 2023

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Current agricultural and food production practices are facing extreme stress, posed by climate change and an ever-increasing human population. The pressure to feed nearly 8 billion people while maintaining a minimal impact on the environment has prompted a movement toward new, more sustainable food sources. For thousands of years, both the macro (seaweed and kelp) and micro (unicellular) forms of algae have been cultivated as a food source. Algae have evolved to be highly efficient at resource utilization and have proven to be a viable source of nutritious biomass that could address many of the current food production issues. Particularly for microalgae, studies of their large-scale growth and cultivation come from the biofuel industry; however, this knowledge can be reasonably translated into the production of algae-based food products. The ability of algae to sequester CO2 lends to its sustainability by helping to reduce the carbon footprint of its production. Additionally, algae can be produced on non-arable land using non-potable water (including brackish or seawater), which allows them to complement rather than compete with traditional agriculture. Algae inherently have the desired qualities of a sustainable food source because they produce highly digestible proteins, lipids, and carbohydrates, and are rich in essential fatty acids, vitamins, and minerals. Although algae have yet to be fully domesticated as food sources, a variety of cultivation and breeding tools exist that can be built upon to allow for the increased productivity and enhanced nutritional and organoleptic qualities that will be required to bring algae to mainstream utilization. Here we will focus on microalgae and cyanobacteria to highlight the current advancements that will expand the variety of algae-based nutritional sources, as well as outline various challenges between current biomass production and large-scale economic algae production for the food market.

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Section: Resource Use For Algae Cultivation and Comparison To Traditi...mentioning

confidence: 92%

Section: Resource Use For Algae Cultivation and Comparison To Traditi...mentioning

confidence: 99%

Developing algae as a sustainable food source

et al. 2023

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“…In the composite industry, they are usually referred to as plant fibers and are further categorized as wood or nonwood sources. Fiber sources are also called agro-waste, such as rice husks and rubber plant waste, corn, soybean, cocoa, sugar cane production, timber/wood and palm oil production [14,15].…”

Section: Natural Fibersmentioning

confidence: 99%

“…Biomass materials typically contain three main constituents: cellulose, lignin and hemicellulose. The most abundant renewable natural material produced in the biosphere is cellulose, which is typically contained in plants, a few aquatic creatures and, to a limited degree, in green organisms such as algae, diatoms and cyanobacteria, microorganisms, spineless creatures and even amoebas [15,17].…”

Section: Natural Fibersmentioning

confidence: 99%

Nanocellulose from agricultural waste as an emerging material for nanotechnology applications – an overview

Abdullah¹,

Rani²,

Mohammad³

et al. 2021

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It has been shown that in the last decades nanotechnology plays a key role not only in science but more and more often in industry as well. Recent research has shown that agricultural waste is a possible feedstock to produce nanocellulose which can be used for different applications, such as a biosensor, semiconductor and reinforcing agent. The use of agro-waste as a precursor not only offers advantages for raw material costs, but also for the climate, low processing costs, availability and convenience. It also helps to address environmental issues, such as illness, foul odor and concerns with indoor use. Different processes, such as chemical treatment, mechanical treatment and chemo-mechanical treatment, have been used to extract nanocellulose from agro-waste. This article highlights the latest technologies used to acquire agro-waste nanocellulose, as well as existing advances in and applications of nanocellulose technologies.

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“…However, due to the characteristic of algae being prone to rapid reproduction, it is difficult to confine their cultivation within specific areas in natural water bodies [ 10 ]. The excessive proliferation of algae outside the designated zones can lead to eutrophication, resulting in water pollution, foul odors, and ecological damage [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Proteinaceous Microsphere-Based Water-in-Oil Pickering Emulsions for Preservation of Chlorella Cells

Qi,

Hang,

Jiang

et al. 2024

Polymers

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Microalgae are highly regarded as ideal materials for the creation of liquid biofuels and have substantial potential for growth and utilization. However, traditional storage and culture methods for microalgae are plagued by challenges such as uncontrolled growth, bacterial contamination, and self-shading among algae. These issues severely impede the photosynthetic process and the efficient extraction of biomass energy. This study tackles these problems by utilizing magnetic hydrophobic protein particles to stabilize water-in-oil Pickering emulsions. This allows for the micro-compartment storage and magnetic transfer of algae. Additionally, the successful encapsulation of Chlorella cells in high-internal-phase water-in-oil Pickering emulsions effectively mitigates the settling problem of Chlorella cells in the liquid phase, thereby enabling the potential use of Pickering emulsions for the confined cultivation of microalgae.

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Algae and their growth requirements for bioenergy: a review

Cited by 18 publications

References 199 publications

Developing algae as a sustainable food source

Developing algae as a sustainable food source

Nanocellulose from agricultural waste as an emerging material for nanotechnology applications – an overview

Proteinaceous Microsphere-Based Water-in-Oil Pickering Emulsions for Preservation of Chlorella Cells

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