scholarly journals Single Cell Oil Production from Waste Biomass: Review of Applicable Industrial By-Products

2019 ◽  
Vol 23 (2) ◽  
pp. 325-337
Author(s):  
Kriss Spalvins ◽  
Ilze Vamza ◽  
Dagnija Blumberga
Keyword(s):  
Single Cell ◽  
Industrial Waste ◽  
Essential Fatty Acids ◽  
Production Costs ◽  
Industrial Wastes ◽  
Biodiesel Production ◽  
Waste Materials ◽  
Single Cell Oil ◽  
Waste Products ◽  
By Products

Abstract Single cell oil (SCO) is an attractive alternative source of oil, which, depending on the fatty acid composition, can be used as a feedstock for biodiesel production, as an ingredient for pharmaceuticals or as a source of essential fatty acids for human and animal consumption. However, the use of SCO is limited due to use of relatively expensive food or feed products in the cultivation of SCO producing microorganisms. In order to reduce SCO production costs, the use of cheaper feedstock such as biodegradable agro-industrial wastes are necessary. At the same time, the microbial treatment of biodegradable wastes ensures the neutralization of environmentally harmful compounds and reduces the negative impact on the environment. Oleaginous microorganisms are capable of fermenting a variety of industrial by-products, waste products and wastewaters, however further discussion on properties of the waste materials is necessary to facilitate the selection of the most appropriate waste materials for SCO production. Thus, this review compares various industrial waste products that can be used as cheap feedstock for the cultivation of SCO producing microorganisms. Industrial waste products, by-products and wastewaters are compared according to their global availability, current use in competing industries, required pre-fermentation treatments, oleaginous microorganism cell concentrations and SCO yields.

scholarly journals Ranking of By-products for Single Cell Oil Production. Case of Latvia

2020 ◽  
Vol 24 (2) ◽  
pp. 258-271
Author(s):  
Elīna Račko ◽  
Dagnija Blumberga ◽  
Krišs Spalviņš ◽  
Eglė Marčiulaitienė
Keyword(s):  
Single Cell ◽  
Large Scale ◽  
Oil Production ◽  
Single Cell Oil ◽  
Cultivation Conditions ◽  
Waste Products ◽  
Promising Alternative ◽  
Availability Analysis ◽  
Agroindustrial Waste ◽  
By Products

AbstractSingle cell oil is considered as a promising alternative to fish and vegetable oils. Due to the ability of oleaginous microorganisms to produce significant amounts of polyunsaturated fatty acids such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), single cell oil can be used for human and animal consumption. In this context, marine microorganisms of the class Labyrinthulomycetes are particularly highlighted in scientific literature. In order to clarify the possibilities for the use of microorganisms of the class Labyrinthulomycetes in large-scale single cell oil production, the first step is to gain awareness of the cultivation conditions required for these microorganisms. In addition, to reduce the cost of single cell oil production, it is necessary to identify potential agroindustrial waste products that are suitable for microbiological cultivation of Labyrinthulomycetes. This article examines the potential biotechnological applications of Labyrinthulomycetes in single cell oil production, the cultivation conditions, nutritional requirements, inhibitors and suitable waste products. In addition, an agroindustrial by-product availability analysis has been carried out. The article evaluates agroindustrial by-products based on their availability in Latvia, required pre-treatment, price, shelf life and efficiency.

scholarly journals Cutaneotrichosporon oleaginosus: A Versatile Whole-Cell Biocatalyst for the Production of Single-Cell Oil from Agro-Industrial Wastes

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1291
Author(s):  
Nicola Di Fidio ◽  
Filippo Minonne ◽  
Claudia Antonetti ◽  
Anna Maria Raspolli Galletti
Keyword(s):  
Single Cell ◽  
Oleaginous Yeast ◽  
State Of The Art ◽  
Lipid Production ◽  
Industrial Applications ◽  
Industrial Wastes ◽  
Single Cell Oil ◽  
Whole Cell ◽  
Whole Cell Biocatalyst ◽  
By Products

Cutaneotrichosporon oleaginosus is an oleaginous yeast with several favourable qualities: It is fast growing, accumulates high amounts of lipids and has a very broad substrate spectrum. Its resistance to hydrolysis by-products makes it a promising biocatalyst for custom tailored microbial oils. C. oleaginosus can accumulate up to 60 wt.% of its biomass as lipids. This species is able to grow by using several compounds as a substrate, such as acetic acid, biodiesel-derived glycerol, N-acetylglucosamine, lignocellulosic hydrolysates, wastepaper and other agro-industrial wastes. This review is focused on state-of-the-art innovative and sustainable biorefinery schemes involving this promising yeast and second- and third-generation biomasses. Moreover, this review offers a comprehensive and updated summary of process strategies, biomass pretreatments and fermentation conditions for enhancing lipid production by C. oleaginosus as a whole-cell biocatalyst. Finally, an overview of the main industrial applications of single-cell oil is reported together with future perspectives.

Dairy Waste Treatment and Utilization

2020 ◽  
pp. 160-182
Author(s):  
Anum Ishaq ◽  
Ubaid ur Rahman ◽  
Muhammad Haseeb Ahmad ◽  
Amna Sahar ◽  
Qamar Abbas Syed ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Waste Treatment ◽  
Dairy Industry ◽  
Waste Materials ◽  
Organic Substances ◽  
Proper Treatment ◽  
Aquatic Resources ◽  
Waste Products ◽  
Dairy Waste ◽  
By Products

The dairy industry produces waste materials and by-products including soluble and suspended organic substances, wastewater, suspended solids, and whey. These substances contain significant amounts of organic and inorganic toxins that can cause serious health threats if not treated properly. Additionally, toxins produced by dairy waste would negatively affect the environment as well as quality and availability of aquatic resources. However, these waste materials and by-products can be utilized in different ways after proper treatment and processing. This chapter will provide an overview of waste products of dairy industries and highlight different treatments and utilization of these by-products in other industries.

Synthesis of single-cell oil by Yarrowia lipolytica MTCC 9520 utilizing slaughterhouse lipid waste for biodiesel production

2020 ◽  
Author(s):  
P. Radha ◽  
Sanjana Narayanan ◽  
Angana Chaudhuri ◽  
Sameena Anjum ◽  
Deborah Lilly Thomas ◽  
...  
Keyword(s):  
Single Cell ◽  
Yarrowia Lipolytica ◽  
Biodiesel Production ◽  
Single Cell Oil

scholarly journals Development of Sustainable LSP-Bricks Using Local Industrial Wastes

2021 ◽  
Vol 18 (1) ◽  
pp. 39
Author(s):  
Ani Maslina Saleh ◽  
Mohamad Nidzam Rahmat ◽  
Norsalisma Ismai
Keyword(s):  
Natural Resources ◽  
Industrial Waste ◽  
Target Material ◽  
Green Building ◽  
Industrial Wastes ◽  
Waste Materials ◽  
Infrastructure Development ◽  
Building Components ◽  
Paint Sludge ◽  
The Impact

Uncontrolled infrastructure development may produce excessive carbon emission and scarcity of natural resources. The reuse of waste materials in general promotes material ecology and the cradle-to-cradle concept. The utilisation of industrial waste in the development of advanced materials promoting the extensive research on sustainable building components. The main objective of this research is to investigate the potential of utilising local industrial waste, Solid Waste Fly Ash (SwFA) and Paint Sludge (PS) as target material in replacing laterite soil that is non-renewable natural resources. Standard industrial size bricks were fabricated consist the combination of Laterite Clay, SwFA and PS (LSP) at 50:25:25 ratios. The results for engineering and environmental properties were within the acceptable of engineering standards and performances. This test result suggests potential used of SwFA and Paint Sludge as substitute to clay for unfired brick. This will certainly contribute to the recycling of SwFA and industrial sludge (Paint Sludge andpossibly others) and hence to minimise the impact of these by-product to the environment if send to landfill. The manufacture of unfired bricks can exploit locally available waste materials and can be used in certain applications of low load bearing situation. This research also suggests innovation and enhanced waste management and contribution towards the concept of green building components.  Keywords: Industrial waste, eco-bricks, durability, thermal, acoustic

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