دانلود رایگان مقاله لاتین کشت بافت برای گیاه پالایی از سایت الزویر
عنوان فارسی مقاله:
یک روش بالقوه کشت بافت برای گیاه پالایی رنگ در صنعت آبزی پروری
عنوان انگلیسی مقاله:
A potential tissue culture approach for the phytoremediation of dyes in aquaculture industry
سال انتشار : 2016
برای دانلود رایگان مقاله کشت بافت برای گیاه پالایی اینجا کلیک نمایید.
مقدمه انگلیسی مقاله:
1. Introduction
Triphenylmethane dyes are used extensively in textile, food, cosmetic, paper, medical and leather industries. Brilliant green, also called emerald green or malachite green G is a triarylmethane dye of the malachite-green series used in dilute solution as a topical antiseptic. Brilliant green is readily absorbed by fish and fish eggs during waterborne exposure where it acts as a respiratory poison, damaging the cell’s ability produce energy to drive vital metabolic processes and persist in edible fish tissues for extended periods of time [1]. Its worldwide use in aquaculture will probably continue due to its relatively low cost, ready availability, and efficacy and hence, potential human exposure to brilliant green could result from the consumption of treated fish and from working in the dye and aquaculture industries. Different methods are available to treat the wastewater containing dyes of which most of them are chemical which are costly and less efficient and produce large amount of sludge [2]. Photocatalytic degradation of Brilliant Green (BG) has also been studied by many scientists [3,4]. Studies on brilliant green degradation with ozone microbubbles has shown the formation of a large number of intermediate compounds during oxidation and has reported only 80% degradation [5]. Biological processes are getting more and more attention since it is economic and environment friendly and result in negligible sludge formation as it can possibly lead to complete degradation of the dye molecules to carbon dioxide and water [6]. So many works are being carried out around the world on the use of bacterial and fungal peroxidases in dye decolorization [7]; but the aging of fungal mycelium and the risk of contamination by bacteria under non-sterile conditions have hindered its application. Plant peroxidases can function as an alternative for the degradation of brilliant green in such situations as these are environment friendly and mild and can overcome most of the disadvantages related to other methods [8,9]. But, almost all the works done in the field of dye and effluent treatment are based on commercial enzymes like HRP [10] which is not appreciable due to the prohibitive cost of the enzyme. Major limitation of plant peroxidase is the low yield and high cost of production compared to the bacterial and fungal enzymes. Reduction in enzyme cost can be achieved through continuously reusing the enzyme after immobilizing on various supports and by decreasing the purification cost [11]. Immobilization of a biocatalyst is a well-accepted method for better process control, reduced operational cost and for continuous removal of toxic metabolites [12]; but most of the dye and effluent treatment studies reported have used pure commercial horse radish peroxidase (HRP) enzyme for degradation studies and also the supporting material for immobilization is also much costly [13]. In the present study, 2,4-dichlorophenoxy acetic acid was used for the proliferation of callus in the plant, Tecoma stans var. angustata. The friable callus without any further purification was immobilized in calcium alginate beads which were used for the degradation of brilliant green and the degradation was optimized under different conditions as batch cultures and finally a packed bed reactor was constructed for the continuous degradation of the dye. Here, the plant callus is protected from the possible toxic effects of the dye by entrapment in alginate beads. Immobilization of callus in alginate beads has rendered improved enzyme stability under extreme conditions of temperature and pH and imparts reusability subsequently making it good for using in continuous processes. Moreover, most of the reported dye effluent treatments with biological systems also focus on decolourization studies rather than degradation thereby leaving smaller aromatic compounds which are not environment friendly [14]. The present study is a cost effectivemethodof brilliant greendegradation where the enzyme in immobilized callus shows good optimization parameters compared to the enzyme in free callus and bears good storage stability and reusability making it better than most of the reported immobilized systems for bioremediation.
برای دانلود رایگان مقاله کشت بافت برای گیاه پالایی اینجا کلیک نمایید.
کلمات کلیدی:
A potential tissue culture approach for the phytoremediation ... - INFONA https://www.infona.pl/resource/bwmeta1.element.elsevier-d5bab8ed.../disciplines A potential tissue culture approach for the phytoremediation of dyes in aquaculture industry. Nisha Rani D., Emilia Abraham T. Details · Contributors · Fields of ... Treatment of Textile Effluent by Phytoremediation with the Aquatic ... link.springer.com/chapter/10.1007/978-3-319-48439-6_15 by A Arivoli - 2017 Mar 16, 2017 - Phytoremediation technology can be effective approach for remediating contaminated sites of such textile dyeing effluents. The objective of this ... A Potential Tissue culture Approach for the Phytoremediation of Dyes ... https://www.sparrho.com/...approach-for-the-phytoremediation-of-dyes-in-aquaculture... A Potential Tissue culture Approach for the Phytoremediation of Dyes in Aquaculture Industry. Imported: 08 Aug '16 | Published: 06 Aug '16. Nisha Rani D. Dye-paper for Biochemical Engineering | Emilia Abraham - Academia ... www.academia.edu/28885981/Dye-paper_for_Biochemical_Engineering A Potential Tissue culture Approach for the Phytoremediation of Dyes in Aquaculture Industry 1 Nisha Rani, D. and 2Emilia Abraham, T. Dr. Nisha Rani D. 1 ... Phytoremediation of dye contaminated soil by Leucaena leucocephala ... https://www.ncbi.nlm.nih.gov › NCBI › Literature › PubMed Central (PMC) by V Jayanthy - 2014 - Cited by 11 - Related articles Dec 26, 2013 - Phytoremediation of dye contaminated soil by Leucaena ..... is a widely used method to evaluate the free radical scavenging ability of various ... Phytoremediation of textile dyes and effluents: Current scenario and ... https://www.ncbi.nlm.nih.gov/pubmed/26386310 by RV Khandare - 2015 - Cited by 18 - Related articles Sep 18, 2015 - Phytoremediation has emerged as a green, passive, solar energy driven and cost effective approach for environmental cleanup when ... [PDF]Eco Sustainable Approach - IJIMS www.ijims.com/process/downloadPDF.php?id=130 by M Rizwana - Related articles Phytoremediation of Textile Waste Water Using Potential Wetland Plant: Eco Sustainable ... usage of dyes and chemicals textile effluents are dark in colour, thus ..... [50] Skillicorn, P., W. Spira and W. Journey, Duckweed aquaculture: A new ...
