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Cell Aggregation and Sedimentation
Published in Martin A. Hjortso, Joseph W. Roos, Cell Adhesion, 2018
Microbial biomass includes such diverse products as baker’s yeast, bacterial insecticides, nitrogen-fixing bacteria, and single-cell protein (78). The term “single-cell protein” (SCP) refers to microorganisms such as algae, actinomycetes, bacteria, yeasts, molds, and higher fungi grown in large-scale fermentation systems for use as protein sources in human foods or animal feeds (40). Although this term was coined by C. L. Wilson at the Massachusetts Institute of Technology in 1966, people have eaten certain microorganisms as a portion of their diet since ancient times (79). Presently, the economies of SCP are not competitive with other low-cost protein sources, such as fish meal and soy beans, so it is primarily used to provide supplemental proteins and vitamins rather than as a primary food supply (79). Research continues on developing improved processes and exploiting cheap raw materials to reduce the cost of production of SCP.
Introduction
Published in Debabrata Das, Debayan Das, Biochemical Engineering, 2019
Microbial biomass is rich in nutrients and is exploited for human consumption. For example, single-cell protein (SCP) technology uses bacteria, algae, yeasts, or fungi to make protein fit for human consumption. The single-cell biomasses of Spirulina (cyanobacteria) and Chlorella (microalgae) are grown commercially in ponds to produce food materials for human consumption. Single-cell protein develops when microbes ferment waste materials such as wood, straw, alcoholic residues, etc. The major challenge for this process is the product dilution and cost.
Glossary of scientific and technical terms in bioengineering and biological engineering
Published in Megh R. Goyal, Scientific and Technical Terms in Bioengineering and Biological Engineering, 2018
Single cell protein (SCP) is a protein produced by micro-organisms. The dried mass of a pure sample of a protein-rich-micro-organism, which may be used either as feed (for animals) or as a food (for humans).
Recycling of sugar industry wastewater for single-cell protein production with supplemental carotenoids
Published in Environmental Technology, 2020
Chewapat Saejung, Pongsathorn Salasook
Photosynthetic bacteria (PSB) are considered as potential microorganisms for industrial wastewater treatment because they can remove organic wastes under high pollutant loads, thereby evading the sludge-disposal cost and secondary pollution [5]. The biomass obtained from wastewater treatment is highly nutritious, especially the protein content, which includes all essential amino acids [6]. The PSB biomass in wastewater treatment can be recovered as bio-energy feedstock and single cell protein (SCP) for animal feed, which enhances its economic value [7,8]. In the literature, PSB biomass has been produced from waste capsicum, food processing wastewater, biogas slurry wastewater, brewery wastewater, synthetic white-spirit wastewater, citric acid wastewater, dairy wastewater, artificial sugar wastewater, fermented starch wastewater, synthetic starch wastewater and domestic wastewater [9–23]. However, nutrient removal from real sugar wastewaters by SCP-producing PSB has been rarely reported.
Optimization of conditions for the production of lignocellulolytic enzymes by Sphingobacterium sp. ksn-11 utilizing agro-wastes under submerged condition
Published in Preparative Biochemistry & Biotechnology, 2019
Kulkarni S. Neelkant, Kumar Shankar, S. K. Jayalakshmi, Kuruba Sreeramulu
Agro wastes such as crop residues, grasses, peanut husks, corn husks, coffee cherry husks, paddy, wheat, jowar straws, etc., contribute major sources of lignocellulosic substances. These are very inexpensive, abundantly, locally available and renewable resources. Considering these biomasses comprises of cellulose, hemicellulose and lignin, numerous possibilities of employing these residues in enzyme production.[1] Bioconversion of this biomass into products like fermentable sugars, organic acids, fuel, single cell protein, amino acids, and industrial chemicals would play a significant role in the economic viability of these value-added products.[2,3]
Microalgae: a cheap tool for wastewater abatement and biomass recovery
Published in Environmental Technology Reviews, 2022
Haruna Saidu, Jibrin Mohammed Ndejiko, Nafiatu Abdullahi, Aisha Bello Mahmoud, Shaza Eva Mohamad
Algal-based wastewater treatment is a new technology that has many functions to offer in environmental biotechnology. In the phycoremediation aspect, microalgae can contribute to solving environmental problems such as the removal of toxic pollutants from the wastewater, sequestration of atmospheric gasses to reduce greenhouse effect, and the generation of biomass to produce high-value-added products (Biogas, biofuel, bioethanol, single cell protein, and bio-ores). The state of this new technology has encompassed the ability of microalgae to remove nitrate, phosphate, BOD, COD, heavy metals, colour, pesticides, and coliform from wastewater, as discussed in the following sections.