Abstract
Single-cell protein (SCP) and biodiesel are high-value products made from agro-industrial waste by microorganisms. Dry microbial biomass is high in protein and can be used in food and feed. Renewable biodiesel can replace diesel in transportation. Microbes help make SCP and biodiesel from agro-industrial waste. SCP is made by fermenting trash into protein-rich biomass with bacteria. Waste lipids are trans esterified by bacteria to make biodiesel. Several bacteria can produce SCP and biodiesel from agro-industrial waste. Bacteria, yeasts, and algae are common microorganisms. Waste type and desired product determine the microorganism utilized. SCP and biodiesel from agro-industrial waste provide many benefits. First, transforming agro-industrial waste into marketable products reduces its environmental impact. Second, it produces protein and biodiesel sustainably. Third, it can develop rural jobs and economic prospects from agro-industrial waste. Microbes help make SCP and biodiesel from agro-industrial waste. SCP is made by fermenting trash into protein-rich biomass with bacteria. Microbes convert complex carbohydrates and other nutrients in waste into growth chemicals. Microbes synthesize proteins from these substances. Waste lipids are transesterified by bacteria to make biodiesel. Biodiesel and glycerol are produced via transesterification of lipid triglycerides with alcohol. Microbes produce transesterification enzymes. Several firms are develo** SCP and biodiesel from agro-industrial waste. Several research efforts are also improving SCP and biodiesel production from agro-industrial waste. Waste material variety makes SCP and biodiesel synthesis from agro-industrial waste difficult. Agro-industrial waste composition depends on crop or food product, season, and processing methods. This can hinder SCP and biodiesel production optimization. Another issue is SCP and biodiesel production costs. To compete with conventional protein sources and fuels, SCP and biodiesel must have low production costs. Despite these challenges, SCP and biodiesel production from agro-industrial waste could help create a more sustainable food and energy system.
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Abbreviations
- BOD:
-
Biological Oxygen Demand
- COD:
-
Chemical Oxygen Demand
- DIJ:
-
Deproteinized Leaf Juice
- FAO:
-
Food and Agriculture Organization
- FFA:
-
Free Fatty Acids
- FW:
-
Food Waste
- GHG:
-
Green House Gas
- SCP:
-
Single-cell Protein
- SSF:
-
Solid-State Fermentation
- WHO:
-
World Health Organization
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Rawat, R., Singh, P., Singh, R. (2024). Single-Cell Protein and Biodiesel Production from Agro-Industrial Waste. In: Saha, S.P., Mazumdar, D., Roy, S., Mathur, P. (eds) Agro-waste to Microbe Assisted Value Added Product: Challenges and Future Prospects. Environmental Science and Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-58025-3_6
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