biodegradation of polyethylene by green photosynthetic microalgae

US20110151547A1 Potential Application of Algae in Biodegradation of Phenol ... Interactions between polyethylene and polypropylene ... Details: The alga identified is microalga Uronema africanum Borge. Biodegradation of Polyethylene by Green Photosynthetic ... Biodegradation of low-density polyethylene (LDPE) sheet by ... The result, which feels like linen, is the first non-woven living and photosynthetic textile to be made. Microalgae can be produced in open and closed systems. The degradation of these plastics to micro sizes leads to environmental threats, especially when the micro plastics interact with fresh water microorganism such as microalgae. The offshore placement in protected bays near coastal cities co-locates OMEGA with wastewater outfalls and sources of CO2-rich flue gas on … A must-read for English-speaking expatriates and internationals across Europe, Expatica provides a tailored local news service and essential information on living, working, and moving to your country of choice. Due to excellent properties such as ease of processing, transportation and storage, as well as outstanding chemical stability, plastics are widely used in daily production and life, which induce the possibility of plastics entering the natural environment and long-term staying in the environment. Abstract. Ramachandran Vimal Kumar, G. R. Kanna, S. Elumalai. Culturing of green photosynthetic microalgae (Chlorella sp.) PhD thesis, Universiti Sains Malaysia. This study aimed at isolating and identifying bacteria and fungi with the capacity to degrade low density polyethylene (LDPE). The level of biodegradation of LDPE sheets with bacterial and fungal inoculums from different sampling points of Dandora dumpsite was evaluated under laboratory conditions. Conventional methods of polyethylene degradation including incineration, landfill and chemical treatment are lethal to the neighboring environment by causing hazardous effects on living organisms. 2017. Biodegrad., 8 (2017), p. 2, 10.4172/2155-6199.1000381. Uses of 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic ... Microalgae have the ability to convert plastics into metabolites such as CO 2, H 2 O, and new cell biomass (i.e., mineralization). PCC 6803, and Synechococcus elongatus PCC 7942), which are photosynthetic microorganisms and were previously identified as blue-green algae, are currently under close attention for their abilities to capture solar energy and the greenhouse gas carbon dioxide for the production of high-value products. This study evaluates a simple, scalable bioelectrochemical system built from recycled plastic bottles, equipped with an anode made from recycled aluminum, and operated with the green alga . To assess the potential risk of nanoplastic pollution, this study exposed marine green microalgae Platymonas helgolandica to 20, 200, and 2000 μg/L 70-nm polystyrene nanoplastics for 6 days. Chlamydomonas reinhardtii, a type of single-cell green algae, is spun together with nano polymers to create a fabric for biogarment. Microalgae are the most primitive and largest autotrophic oxygen-producing organisms on earth, and 40% of the oxygen on the earth comes from their photosynthetic activity. Abstract. Godos I, Vargas VA, Blanco S, García MC, Soto R, García-Encina PA, Becares E, Muñoz R 2010. 36 Microalgae can be found almost everywhere in the water environment. Microalgae contribute to the biodegradation of plastic waste with its enzymes that weaken the chemical bonds of plastic polymers. Microalgae produce enzymes that reduce reaction activation energy and weaken polymer chemical bonds, promoting biodegradation. Exposures of infants in utero to these pollutants through maternal consumption of contaminated seafood can damage developing brains, reduce IQ and increase children’s risks for autism, ADHD and learning disorders. Biodegradation of Polyethylene by Green Photosynthetic Microalgae. Standard microalgae culture media have been developed and produced out of the need to produce desired products and are available in the market for freshwater microalgae growth management. PCC 6803, and Synechococcus elongatus PCC 7942), which are photosynthetic prokaryotes and were previously identified as blue-green algae, are currently under close attention for their abilities to capture solar energy and the greenhouse gas carbon dioxide for the production of high-value products. Expatica is the international community’s online home away from home. Biodegradation of Polyethylene by Green Photosynthetic Microalgae. Nanoplastics significantly inhibited the growth of P. helgolandica during the first 4 days of … While the negative impacts of plastics are widely reported, particularly on marine vertebrates, impacts on microbial life remain poorly understood. Some cyanobacteria have also been found to intracellularly accumulate polyhydroxyalkanoates (PHA), which are comparable in properties to polyethylene and polypropylene (Steinbüchel et al. Cáceres TP, Megharaj M, Naidu R (2008) Biodegradation of the pesticide fenamiphos by ten different species of green algae and cyanobacteria. In the recent study, the biodegradation of low-density polyethylene (polymer) sheet into monomers was done by the microalga Uronema africanum Borge. The biodegradation characteristics of dimethyl phthalate (DMP) by three freshwater unicellular organisms were investigated in this study. 2017; 8: 381. Microalgae grow very rapidly and are able to harness energy from the sun and absorb surrounding CO 2 to produce biomass. J Bioremediat Biodegrade. The algae release the O2 while carrying out the photosynthesis which ensures a continuous supply of oxygen for biodegradation. and bioremoval of nonylphenol and octylphenol in the freshwater green microalga Scenedesmus obliquus , Ecotoxicology and Environmental Safety 87:10–16 Chlorophenol Chlorella VT-1 Olivier, S., Scragg, A.H.., Morrison, J., 2003. Bacterial chlorophyll differs from algal chlorophyll in both chemical structure and absorption capacity. Due to their wide distribution, microalgae are highly likely to suffer from NPs in areas contaminated by NPs. Transformation of microalgae. It is responsible for an estimated nine million premature deaths per year, enormous economic losses, erosion of human capital, and degradation of … Microalgae are an extremely diverse type of unicellular organisms able to carry out the biological xation of mineral carbon through photosynthesis; their energy storage is primarily ensured by the in-tracellular production of branched polysaccharides, under the form of starch granules in green algae (Ball, Dirick, Decq, Martiat, & Matagne, Biodegradation of bisphenol A and disappearance of its estrogenic activity by the green alga Chlorella fusca var. Polyethylene terephthalate (PET) and Polypropylene (PP) are the most widely used plastics in manufacture of packaging, fibres, and drinking bottles, etc. Microalgae, as primary producers, are responsible for the conversion of inorganic carbon into organic carbon through photosynthesis. The process of supplying oxygen is expensive, tedious, and requires a lot of expertise and manpower. Biomass gasification converts biomass into CH 4, H, CO 2, and NH 3. Abrasions were seen on the surface of the polyethylene sheet at different magnifications. Microalgae are a large and diverse group of photosynthetic microorganisms. Since microalgae naturally produce polymers, they could potentially be of use in bioplastic production. Although microalgae are photosynthetic microorganisms, they can also grow in mixotrophic and heterotrophic conditions [ 18 ]. They may have a role in plastic degradation . … Biodegradation was the major process of antibiotics removal (including SMX) by microalgae, with a low contributions of bioadsorption, bioaccumulation and abiotic factors (Kiki et al., 2020). PCC7822 achieved the highest degradation efficiency. Bio-derived polyethylene is chemically and physically identical to traditional polyethylene – it does not biodegrade but can be recycled. In this respect, information on the biological fate of polyethers and their metabolites, both in the environment and in vivo , is essential. Li Z, Wei R, Gao M, Ren Y, Yu B, Nie K, Xu H and Liu L (2020) Biodegradation of low-density polyethylene by Microbulbifer hydrolyticus IRE-31, Journal of Environmental Management, 10.1016/j.jenvman.2020.110402, 263, (110402), Online publication date: 1-Jun-2020. The photosynthetic nature of microalgae allows the generation of toxic oxygen species that act as strong oxidising agents such as O 2 −, OH − and H 2 O 2. and microalgae to form a bio-fouling. Plastics Biodegradation via Photosynthetic Microorganisms in Freshwater and Marine Basins Cyanobacteria and green algae are a fundamental part of phytoplankton, organisms at the base of the trophic chain in freshwaters. Cyanobacteria (e.g., Synechocystis sp. Lower concentration of DMP supported the growth of the … The photosynthetic performance of a microalgal biofilm ... as the possible underlying mechanism for biodegradation. The rapid accumulation of plastic waste is driving international demand for renewable plastics with superior qualities (e.g., full biodegradability to CO2 without harmful byproducts), as part of an expanding circular bioeconomy. Photosynthetic microalgae are microbes that have colonized every habitat on Earth, and exhibit extraordinary biological diversity, estimated to be greater than 200,000 species (Guiry, 2012), which reflects an enormous range of ecological adaptations. Plastics have transformed everyday life; usage is increasing and annual production is likely to exceed 300 million tonnes by 2010. Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members. The degradation of these plastics to micro sizes lead to environmental threats especially when the micro plastic interact with fresh water microorganism such as microalgae. Polyethylene (PE), a polymeric material made from ethene (C 2 H 4) as a basic fragment, is known for its excellent mechanical properties, low cost, and durability leading to its use as carrying bags, a wrapper for food materials, power cable sheathing, laboratory containers, etc.These packaging materials, usually discarded into water bodies and landfills, generate … The reactor was floated on water, exposed to sunlight, and attached to a shaker that was running at 200 rpm. By exploiting photosynthesis, they transform the energy of light into electricity. The rapid accumulation of plastic waste is driving international demand for renewable plastics with superior qualities (e.g., full biodegradability to CO2 without harmful byproducts), as part of an expanding circular bioeconomy. of and in " a to was is ) ( for as on by he with 's that at from his it an were are which this also be has or : had first one their its new after but who not they have – ; her she ' two been other when there all % during into school time may years more most only over city some world would where later up such used many can state about national out known university united … Microplastics are ubiquitous and slowly-degrading contaminants in waters and soils. These problems are overcome by growing microalgae in the ponds and tanks where sewage treatment is carried out. Immobilized microbial cells create opportunities in a wide range of sectors including environmental pollution control. Global development has been heavily reliant on the overexploitation of natural resources since the Industrial Revolution. Chlorella is currently the best-studied and most cultivated microalgae worldwide, mostly due to its high photosynthetic efficiency and high nutritional value (Masojídek & Torzillo, 2008). Photosynthetic and metabolic activities influence the biodegradation ability of microalgae. The first compartment serves for interaction between the water and at … The aeroterrestrial green microalga Stichococcus bacillaris ... [4, 5]. View the article. In: Gilbert R (ed) Cellulosic polymers, blends and composites. This is a species of microalgae that is commonly found in Africa, Asia and Europe. Biology. Polyethylene terephthalate (PET) and Polypropylene (PP) are the most widely used plastics in manufacture of packaging, fibres, and drinking bottles, etc. Incubation of the LDPE sheets was done for sixteen weeks at … reinhardtii CC-503 (cw92 mt+) is a cell wall-less mutant of CC-125 developed for efficient transformation. Polyethylene, particularly in packaging films, has received criticism as it tends to accumulate over a period of time, leaving behind an undesirable visual footprint. Light, provided by sunlight or artificial light sources, is a key parameter for microalgae growth and the biosynthesis of several high value compounds. Due to their wide distribution, microalgae are highly likely to suffer from NPs in areas contaminated by NPs. Nano plastics can accumulate in the digestive tract of sea urchin [53], while polystyrene-NH 2 nano plastics could attach with lipid bilayers on the cell membrane. with microplstic (PE and PP) was conducted by adding the microplastic (500 mg/500 mL, with a size of 0.5–1 mm 2) to microalgae culture. Nishio Y. hyperfine composites of cellulose with synthetic polymers. Biores. The alga used for the study has been harvested from a lake in Chennai. With little more than photons, water, and a few essential nutrients, microalgae reduce CO 2 to carbohydrates. Microalgae, as primary producers, are responsible for the conversion of inorganic carbon into organic carbon through photosynthesis. It is an epiphyte, which attaches itself to other algae and plants. The potential and limitations of photosynthetic oxygenation on carbon and nitrogen removal from swine slurry were investigated in batch experiments using Chlorella sorokiniana and an acclimated activated sludge as model microorganisms. - NH 2 could also decrease lysosomal membrane sta-bilization, increase oxyradical production in he- Adult exposures to … 3 A) and abrasions on the surface of the polyethylene sheet at different magnifications (Fig. Biodegradation of plastics using non-conventional methods promises a future free of accumulation of commodity plastics used in packaging and commercial polymers, which are the most abundant form of plastic wastes. Bacteria-microalgae synergy might also involve the production of exudates by microalgae that can support bacterial growth, possibly accelerating their oil-degrading activity . photosynthesis and aerobic biodegradation takes place. 101: 5150-5158 The present study determined the effect of various concentrations (0, 10, 25, 50, 75 and 100%) of heavy metals containing tannery effluent on cell growth and antioxidant defense system of two … Recently microalgae have been studied as sources of molecules for the production of green materials. Global plastic production has increased exponentially since manufacturing commenced in the 1950’s, including polymer types infused with diverse additives and fillers. The attempt of using microalgae to convert these plastics into metabolites such as carbon dioxide, water and new biomass is of great interest. They are attractive candidates due to their rapid growth, ability to be cultivated on non-arable land, and for their use of sunlight to drive the conversion of carbon dioxide to biomass 1, 2, 3.Microalgal biomass can be converted into … Materials and methods. Furthermore, the impact of micro plastics on microalgae growth is also affected by the avail- The level of biodegradation of LDPE sheets with bacterial and fungal inoculums from different sampling points of Dandora dumpsite was evaluated under laboratory conditions. Very recently, Moog, et al. In this study, we examined these two strains for … Algae are fast growing, nontoxic, readily available in nature, and comparatively easy-to-isolate and known to be colonized on the PE surfaces utilizing polymeric carbon. Biodegradation of PE using this group of organisms will likely to address several environmental goals including carbon mitigation and bioprospection for value-added products. Aerobic biodegradation of polyethylene glycols in organic media The comparative experiments above indicated that the aer-obic sludge microbes from TP were extraordinary. The production of fossil fuel-derived, synthetic plastics is continually increasing, while poor plastic waste management has recently induced severe pollution issues. A reactor and method are presented for processing water, in a manner enabling treatment of contaminated water to produce purified water and enabling simultaneous production of a biomass. 3 B–D). Compared with suspended microorganism technology, cell immobilization shows many advantages, such as resistance to … Cyanobacteria (e.g., Synechocystis sp. 2B,C). This study aimed at isolating and identifying bacteria and fungi with the capacity to degrade low density polyethylene (LDPE). History: The first known use of the word in biological text was in 1961 when employed to describe the breakdown of material into the base components of carbon, hydrogen, and oxygen by microorganisms . This chapter presents bioreactors models applied to bioprocesses including submerged (stirred tank reactor, bubble column, air-lift, membrane, packed … This green photosynthetic microalgae is commonly found in Africa, Asia and Europe. The diverse metabolism of green microalgae species additionally provides opportunities for recovery of products for feed, food, nutraceutical, cosmetic, and biopharmaceutical industries. To overcome this problem, metagenomic analysis of microbial population engaged in the plastic biodegradation is advisable to decipher the microbial community structure and to predict their biodegradation potential in situ. adsorbed by green algae and affect the microbe’s photosynthetic mechanism [56]. This study aimed to evaluate the effect of microplastics on Spirulina sp., the pigment phycocyanin in Spirulina sp., and the effect of Spirulina sp. Where, we have collected a polyethylene carry bag sample colonized by green photosynthetic microalgae and water sample (Fig. With in-depth features, Expatica brings the international community closer together. They produce high metabolite content which can be processed into a number of value-added products, offering them to obtain wide range of market opportunities [ 21 ]. Chlamydomonas reinhardtii CC-124 (mt− [137c]) is a common laboratory wild-type strain, which carries the nit1 and nit2 mutations and is usually used for gene transformation.C. Human Health Findings: Methylmercury and PCBs are the ocean pollutants whose human health effects are best understood. Background: Pollution – unwanted waste released to air, water, and land by human activity – is the largest environmental cause of disease in the world today. The significant increase in mineralisation rate and carbon fixation observed during the biodegradation of polyethylene was ascribed to the introduction of additives which substantially induced ... Biodegradation of polyethylene by green photosynthetic microalgae. Artificial lighting offers the option of defined conditions regarding the target of microalgal biomass as well as special metabolites. The researchers collected a polyethylene carry bag colonised by green, luxuriously grown photosynthetic microalgae and samples of water; Viewing the collected polyethylene sample under a light microscope showed that it was colonised by microalgae. The biodegradation of LDPE was reported in fungi, bacteria, and some actinomycetes (Streptomycetaceae). The light microscopical view of collected polyethylene sample shown colonized by microalgae (Fig. J. Bioremediat. Three liters of a culture of microalgae (microalgae at a concentration of 1.3 grams/liter) was added to the reactor and a continuous flow of carbon dioxide-enriched air (CO 2 at 5% by volume) was supplied to the headspace above the culture. In the bottom zone, the organic ... Anaerobic lagoons are covered these days by polyethylene sheet for biogas recovery and ... between the microalgae and aerobic bacteria, each utilizing the major metabolic products of 95–113. using palm oil mill effluent (POME) for future biodiesel production more by Dr. Prakash Bhuyar Nowadays, the water pollution is leading issue due to palm oil mill effluent (POME), waste from palm oil production is a big problem to Malaysia which is largest palm oil producers. Microalgae are unicellular photosynthetic microorganisms, living in saline or fresh water environments that convert sunlight, water and carbon dioxide to algal biomass. Researchers investigated biodegradation of polyethylene (PE) by measuring changes in various physico-chemical and structural characteristics using techniques like as fourier transform infrared spectroscopy (FTIR), … OMEGA is a system for cultivating microalgae using wastewater contained in floating photobioreactors (PBRs) deployed in marine environments and thereby eliminating competition with agriculture for water, fertilizer, and land. Cerniglia CE, Gibson DT, Baalen CV (1980) Oxidation of naphthalene by cyanobacteria and microalgae. Microplastics have long residence time, high … Carbon capture and sequestration Dyes and other chemicals laden wastewater is a main environmental concern for increasing the textile industries in many parts of the world. Investigation of tannery effluent toxicology in green microalgae is of great importance from ecological point of view, because heavy metal has become a major contaminant in recent years. 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