Biomass recovery during municipal wastewater treatment using photosynthetic bacteria and prospect of production of single cell protein for feedstuff

Saejung, Chewapat; Thammaratana, Thani

doi:10.1080/09593330.2016.1175512

Cited by 43 publications

(11 citation statements)

References 34 publications

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“…Saejung and Thammaratana (2016) reported 60.1% SCP production from culturing Rhodopseudomonas sp. CSK01 cultured from municipal wastewater [51]. Rhodocyclus gelatinosus R7 produced 56% SCP from tuna condensate [52].…”

Section: Bacterial Sourcesmentioning

confidence: 99%

Single Cell Protein: A Potential Substitute in Human and Animal Nutrition

2021

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Single cell protein (SCP) is the first product of the fermentation process and has proven to be a good protein alternative. Food competition is becoming more intense as the world’s population continues to grow. Soon, SCP may be able to compensate for a protein deficit. Various global businesses are focusing on SCP production, and the scope of its application is expanding as time and knowledge increases. High quantities of SCP can be produced by microorganisms, such as algae, yeast, fungi and bacteria, due to their fast development rate and the significant level of protein in their chemical structure. Beside proteins, SCP contains carbohydrates, nucleic acids, lipids, minerals, vitamins and several important amino acids. SCP has been an effective substitute for more expensive protein sources such as fish and soybean products. In conclusion, SCP can easily replace traditional protein sources in human and animal feed without detrimental effects. Potential substrate candidates and optimization strategies for SCP production have been extensively studied. This review article focuses on the various aspects of SCP, from its production, using different substrates, player microorganisms and nutritional benefits, to its economic aspects.

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Section: Bacterial Sourcesmentioning

confidence: 99%

Single Cell Protein: A Potential Substitute in Human and Animal Nutrition

2021

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“…Rhodopseudomonas sp. can be used and produced in wastewater treatment, obtaining a crude protein content of 60.1% w/w of dry weight, containing all the essential amino acids [ 110 ].…”

Section: Opportunities To Meet Circular Economy: Revalorization Of In...mentioning

confidence: 99%

Single-Cell Proteins Obtained by Circular Economy Intended as a Feed Ingredient in Aquaculture

Pereira

Fraga-Corral

García-Oliveira

et al. 2022

Foods

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The constant increment in the world’s population leads to a parallel increase in the demand for food. This situation gives place the need for urgent development of alternative and sustainable resources to satisfy this nutritional requirement. Human nutrition is currently based on fisheries, which accounts for 50% of the fish production for human consumption, but also on agriculture, livestock, and aquaculture. Among them, aquaculture has been pointed out as a promising source of animal protein that can provide the population with high-quality protein food. This productive model has also gained attention due to its fast development. However, several aquaculture species require considerable amounts of fish protein to reach optimal growth rates, which represents its main drawback. Aquaculture needs to become sustainable using renewable source of nutrients with high contents of proteins to ensure properly fed animals. To achieve this goal, different approaches have been considered. In this sense, single-cell protein (SCP) products are a promising solution to replace fish protein from fishmeal. SCP flours based on microbes or algae biomass can be sustainably obtained. These microorganisms can be cultured by using residues supplied by other industries such as agriculture, food, or urban areas. Hence, the application of SCP for developing innovative fish meal offers a double solution by reducing the management of residues and by providing a sustainable source of proteins to aquaculture. However, the use of SCP as aquaculture feed also has some limitations, such as problems of digestibility, presence of toxins, or difficulty to scale-up the production process. In this work, we review the potential sources of SCP, their respective production processes, and their implementation in circular economy strategies, through the revalorization and exploitation of different residues for aquaculture feeding purposes. The data analyzed show the positive effects of SCP inclusion in diets and point to SCP meals as a sustainable feed system. However, new processes need to be exploited to improve yield. In that direction, the circular economy is a potential alternative to produce SCP at any time of the year and from various cost-free substrates, almost without a negative impact.

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“…Being state-of-the-art, PSB can efficiently treat wastewater such as that from the fish industry (Azad et al 2004 ), wastewater containing starch (Getha et al 1998 ; Prachanurak et al 2014 ), dairy industry wastewater (Kaewsuk et al 2010 ), rubber manufacturing industry wastewater, livestock waste streams (Ponsano et al 2008 ), and domestic waste streams (Nagadomi et al 2000 ; Hülsen et al 2018 ). The possible elimination of COD (up to 85–93%) and ammonia nitrogen removal (99%) is likely to be obtained (Saejung and Thammaratana 2016 ; Yang et al 2017 ). PSB biomass is a sound source of single-cell protein that can act as a feed for sealife.…”

Section: Protein Recovery By Different Approachesmentioning

confidence: 99%

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

Shahid

Srivastava

2021

Environ Sci Pollut Res

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Economic growth and the rapid increase in the world population has led to a greater need for natural resources, which in turn, has put pressure on said resources along with the environment. Water, food, and energy, among other resources, pose a huge challenge. Numerous essential resources, including organic substances and valuable nutrients, can be found in wastewater, and these could be recovered with efficient technologies. Protein recovery from waste streams can provide an alternative resource that could be utilized as animal feed. Membrane separation, adsorption, and microbe-assisted protein recovery have been proposed as technologies that could be used for the aforementioned protein recovery. This present study focuses on the applicability of different technologies for protein recovery from different wastewaters. Membrane technology has been proven to be efficient for the effective concentration of proteins from waste sources. The main emphasis of the present short communication is to explore the possible strategies that could be utilized to recover or restore proteins from different wastewater sources. The presented study emphasizes the applicability of the recovery of proteins from various waste sources using membranes and the combination of the membrane process. Future research should focus on novel technologies that can help in the efficient extraction of these high-value compounds from wastes. Lastly, this short communication will evaluate the possibility of integrating membrane technology. This study will discuss the important proteins present in different industrial waste streams, such as those of potatoes, poultry, dairy, seafood and alfalfa, and the possible state of the art technologies for the recovery of these valuable proteins from the wastewater. Graphical abstract

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Biomass recovery during municipal wastewater treatment using photosynthetic bacteria and prospect of production of single cell protein for feedstuff

Cited by 43 publications

References 34 publications

Single Cell Protein: A Potential Substitute in Human and Animal Nutrition

Single Cell Protein: A Potential Substitute in Human and Animal Nutrition

Single-Cell Proteins Obtained by Circular Economy Intended as a Feed Ingredient in Aquaculture

Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder

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