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microbial retting of jute

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It is obtained from the bark of plant through microbial retting process. Here we report optimized microbial retting protocol that can lower retting period and produce high fibre quality. See this image and copyright information in PMC. Jute is an annual renewable fiber crops grown mainly in Bangladesh, India and other Asian countries. Environ Monit Assess. It is one of the largest sources of lignocellulosic bast fiber which is extracted from plants by a natural microbial process known as retting. 0000017900 00000 n 0000003693 00000 n Jute fibre is the second most important fibre next to cotton. To improve the conventional retting process in stagnant water, a microbial consortium trade marked as ‘CRIJAF Sona’ has been developed by ICAR-CRIJAF which reduced retting duration by 6 … 2020 Oct 27;11:581664. doi: 10.3389/fgene.2020.581664. Anaerobic bacteria and aerobic microorganisms mostly mediate conventional retting of jute. They are possibly the world's largest source of lignocellulosic bast fibre which is extracted from plants by a natural microbial process known as retting. Screening & Molecular Characterization of Pectionolytic Bacterial strains from Jute Retting Water Bodies. luteus were isolated and their action on jute stems studied. 2010 Jan;108(1):194-203. doi: 10.1111/j.1365-2672.2009.04409.x. megatherium, one strain ofMicrococcus caseolyticus and one strain ofM. Retting time reduced from 18-22 days to 12-14 days with about 10% higher fibre recovery. This article focusses on the microbial retting of jute bast fibres under aerobic condition using sequencing batch reactor. doi: 10.3923/pjbs.2003.686.687. 0000002949 00000 n eCollection 2013. Quality of jute fibre is found to be better than normal retting ii. Recently a breakthrough in jute retting has been achieved by scientists of ICAR – CRIJAF who have decoded the genome sequences of jute retting microbes by high throughput genome sequencing. It is obtained from the bark of plant through microbial retting process. Decorticated kenaf stalks were retted by bacterial and chemical processes. S ummary: A total of 1,438 colonies of aerobic and anaerobic bacteria has been isolated from samples of retted jute stems collected from 12 districts of East Pakistan. Retting time must be carefully judged; under-retting makes separation difficult, and over-retting weakens the fibre. The genome sizes of these strains are ~3.8 Mb with 3729 to 4002 protein-coding … 0000005166 00000 n For this purpose, stems of fibre yielding plants are immersed in water for long period where decomposition sets in. Usually mature stems of harvested jute plants are allowed to ret in pond or ditch water. For example, the genes for degrading pectin, hemicellulose and other non-cellulosic materials can be altered for enhanced retting efficiency and … 0000000016 00000 n 154 0 obj <> endobj Front Nutr. However, under the mechano-microbial method, green bark containing the fiber bundles is extracted from jute stems by a mechanical device. ISRN Biotechnol. For this reason jute is popularly called the "golden fiber" of Pakistan. Methophilic bacteria found in cold methane seeps forms a symbiotic relationship with deep-sea invertebrates. subtilis, three strains ofB. 2013 Jan 1;442:247-54. doi: 10.1016/j.scitotenv.2012.09.071. 0000002368 00000 n This article focusses on the microbial retting of jute bast fibres under aerobic condition using sequencing batch reactor. eCollection 2020. Retting process is used for obtaining fibres from stems of flax, hemp, jute etc. Satapathy S, Rout JR, Kerry RG, Thatoi H, Sahoo SL. Munshi TK, Chattoo BB. During the storage of fish, dynamic primary changes are taking place in numerous parts of the fish, including the eyes, skin, gills and muscle characteristics of the fish. 0000076285 00000 n 0000044810 00000 n For this purpose, stems of fibre yielding plants are immersed in water for a long period where decomposition sets in. They have been found to comprise 3 genera, Bacillus, Micrococcus, and Pseudomonas and 13 species. Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Ecol.  |  Quality Jute Fibre after microbial consortium retting More than 90% of jute growers ret the jute and mesta plants in stagnant water following conventional method of retting. Retting of jute grown in arsenic contaminated area and consequent arsenic pollution in surface water bodies. Higher pectinolytic bacterial isolates were predominant in the later stage of jute retting. USA.gov. 0000003919 00000 n Jute—an important cash crop of eastern India is traditionally grown for extraction of fibre by a natural microbial process known as retting. Retting, process employing the action of bacteria and moisture on plants to dissolve or rot away much of the cellular tissues and gummy substances surrounding bast-fibre bundles, thus facilitating separation of the fibre from the stem. Relative distribution of 14 species found in the 16S rRNA gene sequences analysis of jute-retting water. Comparative study on the physico-mechanical properties of Jute, kenaf and Mesta-Part-V. Bangladesh J. Jute Fibre Res. 0000074606 00000 n Epub 2012 Nov 22. Comparison of mean pectinase, xylanase and cellulose activities of 10 representative individual isolates with 3 selected bacterial consortia. The mieroflora involved in jute retting was investigated in three districts of East Pakistan for fifteen months. 0000066529 00000 n Usually mature stems of harvested jute plants are allowed to ret in pond or ditch water. To investigate the presence of microorganisms during the process of jute retting, full-cycle rRNA approach was followed, and two 16S rRNA gene libraries, from jute-retting locations of Krishnanagar and Barrackpore, were constructed. 1. Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens. Bacterial Population Structure of the Jute Retting Environment. As the conventional whole plant retting does not suit the farmers in the water crisis situation, mechano-microbial retting technology has been developed which needs some more studies for commercialization. 2020 Aug 6;7:117. doi: 10.3389/fnut.2020.00117. The optimum retti Basic methods include dew retting and water retting. 0000005741 00000 n However, bacterial communities associated with the retting of jute are not well characterized. Please enable it to take advantage of the complete set of features! Linen most useful: perspectives on structure, chemistry, and enzymes for retting flax. Breakthrough in Jute Retting by ICAR – CRIJAF through Genome Sequencing of Microbes of Microbial Retting Consortium India is the largest producer of raw jute and jute goods in the world, contributing about 60% of the global production and providing livelihood support to about 5 million people in farming, trade and industry. It involves microbial decomposition of the unwanted material. 0000078054 00000 n Yellow to red color indicates lowest to highest enzyme activity. For this purpose, stems of fibre yielding plants are immersed in water for long period where decomposition sets in. Of these, 169 isolates have been purified and characterized. 16 s ribosomal gene sequencing analysis identified 2 phyla- Firmicutis (80.55%) and Proteobacteria (19.45%). 0000002470 00000 n -. polymyxa, five strains ofB. Complete removal of pectin and polysaccharide gummy materials are necessary to obtain good quality fibre keeping the natural strength of cellulose. 0000074343 00000 n The repeated retting of jute and mesta in the stagnant water of same natural retting tank lead to the production of inferior quality fibre unless the tank is recharged with fresh water after each retting. doi: 10.3923/jm.2012.50.58.  |  Heat map of liquid culture extra cellular pectinase, xylanase and cellulase activity of 144 isolates. The optimum retti 0000003656 00000 n 154 40 Would you like email updates of new search results? Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens. 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