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... Urbanization and pollution are the major issues of the current time own to the exhaustive consumption of fossil fuels which have a detrimental effect on the nation's economies and air quality due to greenhouse gas (GHG) emissions and shortage of energy reserves. Algae, an autotrophic organism provides a green substitute for energy as well as commercial products. Algal extracts become an efficient ...
algae; biofuels; biomass; biorefining; circular economy; energy use and consumption; feedstocks; fossil fuels; fuel production; issues and policy; stakeholders; supply chain; supply chain management; systematic review
Abstract:
... Investment in biofuels, as sustainable alternatives for fossil fuels, has gained momentum over the last decade due to the global environmental and health concerns regarding fossil fuel consumption. Hence, effective management of biofuel supply chain (BSC) components, including biomass feedstock production, biomass logistics, biofuel production in biorefineries, and biofuel distribution to consumer ...
... “Pelillo” (Agarophyton chilaense, previously named Gracilaria chilensis) is one of the only algae commercially farmed in Chile. The main by-product obtained from pelillo is agar, a major gelling agent used in food and pharmaceutical applications. A. chilense is a valuable feedstock for biorefinery of phycobiliproteins (PBPs), colored and fluorescent water-soluble proteins useful in the food indust ...
... This study investigates the utilization of selected agro-industrial wastes as feedstock for biochar production and subsequent cultivation of French bean (Phaseolus vulgaris L.). The biochar was analyzed using Scanning Electron Microscope (SEM-Zeiss) coupled with Energy Dispersive Spectroscopy (EDS) and Fourier Transform Infrared (FTIR) spectroscopy for structural, morphological, and elemental anal ...
... A circular bio-based economy is based on the recycling of nutrients, reduction and utilization of wastes as a feedstock for processes that can generate various bioproducts. This review discusses the advantages and constraints in integrating algal technologies to establish an environmentally preferable circular biobased rural economy with a great potential to recover resources, diversify livelihood ...
... Low lipid content brown algae (Fucus vesiculosus) are considered an efficient biocrude oil source for their higher productivity rate, adaptation, and ease of cultivation. The hydrothermal liquefaction process can directly utilize algal biomass in the wet state. Hβ zeolite catalyst activity was tested for the hydrothermal liquefaction process of F. vesiculosus algal biomass. Maximum biocrude oil yi ...
Daniel M. Santosa; Lynn M. Wendt; Bradley D. Wahlen; Andrew J. Schmidt; Justin Billing; Igor V. Kutnyakov; Richard T. Hallen; Michael R. Thorson; Tessa L. Oxford; Daniel B. Anderson
... Seasonal impacts on the production of algae biomass require blending with other feedstocks such as wood to maintain consistent annual conversion capacity. Idaho National Laboratory (INL) has developed a long-term storage strategy for algae biomass using ensiling, or anaerobic wet storage, that was tested for blends of algae and wood to stabilize the feedstock supply for processing to fuels. Additi ...
... Microbial lipids (bacterial, yeast, or algal) production and its utilization as a feedstock for biodiesel production in a sustainable and economical way along with waste degradation is a promising technology. Oleaginous yeasts have demonstrated multiple advantages over algae and bacteria such as high lipid yields, lipid similarity to vegetable oil, and requirement of lesser area for cultivation. O ...
... This paper aims to demonstrate an innovative process for the conversion of food waste digestate (FWD) powder into biofuel. The effects of different doses of FWD are investigated on microalgae-activated sludge (MAS) in treating pulp and paper mill wastewater (PPW) which generally contains insufficient nitrogen and phosphorus. FWD was added to adjust the initial N:P molar ratio in MAS at various lev ...
... This study compiles the results of phycoremediation of milk processing wastewater (MPWW) and production of lipid-rich Chlorella vulgaris biomass using a continuous batch system operated for 12-wks. After a 4-wks interval, a new MPWW was loaded photobioreactor to provide appropriate nutrient supply to algae. Results indicated that MPWW supported the algal growth efficiently and the maximum algal gr ...
... Open-field burning of rice straw contributes significantly to deterioration of air quality. Similarly, defatted algal residue is a surplus by-product of the algal biofuel industry. This study emphasizes on the two-step conversion of agro-industrial residues (rice straw and Scenedesmus obliquus deoiled biomass) into biodiesel and carotenoids using oleaginous red yeast Rhodotorula mucilaginosa R2. T ...
... Seafood processing is an important economical activity worldwide and is an integral part of the food chain system. However, their processing results in solid waste generation whose disposal and management is a serious concern. Proteins, amino acids, lipids with high amounts of polyunsaturated fatty acids (PUFA), carotenoids, and minerals are abundant in the discards, effluents, and by-catch of sea ...
... Nearly 15 billion metric tons of fossil fuels are consumed each year all over the world resulting in the depletion of non-renewable energy resources day by day therefore in the coming years, the shortage and price hikes of these fuels are inevitable. On the other hand, the global energy demand is projected to rise by almost 28% by 2040 compared to current levels. Thus, there is a dire need for dev ...
... Oleaginous microalgae represent potential feedstocks for the sustainable production of lipids thanks to their ability to accumulate triacylglycerols (TAGs). TAG accumulation in several algal species is strongly induced under specific conditions such as nutrient deprivation and high light which, however, also negatively impact growth. Genetic modification of lipogenic pathways can potentially enhan ...
... To improve the yields of specific value-added compounds from Arthrospira platensis, one generally accepted method is to obtain mutant strains with increased target component content and growth rate. In the present study, mutation breeding of seawater A. platensis SCSIO-44012 (the wild type strain, hereafter WT) through space-flight carriage by Shijian-10 satellite was carried out. After returning ...
... Algae, as a feedstock with minimum land footprint, is considered a promising biomass for sustainable fuels, chemicals, and materials. Unlike lignocellulosic biomass, algae consist mainly of lipids, carbohydrates, and proteins. This review focusses on the bio-oil and biochar co-products of algae-pyrolysis and presents the current state-of-the-art in the pyrolysis technologies and key applications o ...
... A significant concern of our fuel-dependent era is the unceasing exhaustion of petroleum fuel supplies. In parallel to this, environmental issues such as the greenhouse effect, change in global climate, and increasing global temperature must be addressed on a priority basis. Biobutanol, which has fuel characteristics comparable to gasoline, has attracted global attention as a viable green fuel alt ...
algae; aquaculture; biofuels; bioplastics; biosynthesis; biotechnology; business enterprises; capital; commercialization; energy industry; feedstocks; markets; politics; research; risk; Australia; Vietnam
Abstract:
... Algae have enormous potential to contribute to the water-energy-food-climate nexus, with key opportunities as food products in agriculture and aquaculture, and as a feedstock for biofuels and bioplastics. However, globally, commercialisation of algal biotechnology has been limited to the biosynthesis of pigments, antioxidants and other high-value products with limited market size. In this report, ...
algae; biodegradability; biomass; bioplastics; cellulose; feedstocks; life cycle assessment; petroleum; photosynthesis; research
Abstract:
... The development of new biodegradable plastic materials from renewable sources is a major challenge for plastic industries to provide sustainable alternatives to petroleum plastic. Bio-based plastics are generally obtained from photosynthetic biomass such as higher plants, crops and more recently algae. This review aims to summarise the current state of bioplastic production in general with particu ...
... Algal biomass has been utilized as a potential feedstock for bioenergy and a variety of other bioprocesses. At the core of this topic, there is a general demand for rapid, cost-effective, and accurate methods for algal biomass quantification. Here, we present a simple, low-cost, and non-destructive method to estimate algal biomass concentrations by image analysis based on the hue, saturation, inte ...