Three best combinations were identified that lowered retting period from 18-21 days to 10 days producing high quality fibre in both laboratory and field trial. 2020 Aug 6;7:117. doi: 10.3389/fnut.2020.00117. Quality of jute fibre is found to be better than normal retting ii. doi: 10.3923/jm.2012.50.58. 0000009059 00000 n Three strains ofBacillus macerans, four strains ofB. Retting process utilizes a complex microbial community for dissolution process after immersion of jute plants in water, releasing soluble constituents like sugar, glucosides and nitrogenous compounds (Ahmed and Akhter, 2001). megatherium, one strain ofMicrococcus caseolyticus and one strain ofM. doi: 10.1007/s00248-007-9345-8. 0000076285 00000 n 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. Research Journal of Microbiology. Comparison of mean pectinase, xylanase and cellulose activities of 10 representative individual isolates with 3 selected bacterial consortia. Retting microbes present in plant and water continue to build up their population by utilizing these soluble compounds. It is used in the production of fibre from plant materials such as flax and hemp stalks and coir from coconut husks. 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 … 0000012276 00000 n During this process, some microorganisms decompose pectins of jute barkandthe intervening tissues disinte- grate. Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens. 0000079823 00000 n Basic methods include dew retting and water retting. Jute—an important cash crop of eastern India is traditionally grown for extraction of fibre by a natural microbial process known as retting. Basic methods include dew retting and water retting. luteus were isolated and their action on jute stems studied. polymyxa, five strains ofB. 0 154 0 obj <> endobj 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. 0000069052 00000 n A total of 451 bacterial colonies have been isolated from five jute retting water samples in Bangladesh. Retting time must be carefully judged; under-retting makes separation difficult, and over-retting weakens the fibre. 0000003171 00000 n Jute fibre is the second most important fibre next to cotton. Anaerobic bacteria and aerobic microorganisms mostly mediate conventional retting of jute. Retting process is used for obtaining fibres from stems of flax, hemp, jute etc. Responsible for the Accelaration of Jute Retting. Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens. Of these, 169 isolates have been purified and characterized. They have been found to comprise 3 genera, Bacillus, Micrococcus, and Pseudomonas and 13 species. iii. Biochemical Prospects of Various Microbial Pectinase and Pectin: An Approachable Concept in Pharmaceutical Bioprocessing. Relative distribution of 14 species found in the 16S rRNA gene sequences analysis of jute-retting water. Ali MH, Samad MA, Sarker NN. eCollection 2020. 0000006412 00000 n <<603741E513CD7A43A3C047EABF18AC1C>]/Prev 610941>> Here we report optimized microbial retting protocol that can lower retting period and produce high fibre quality. However, under the mechano-microbial method, green bark containing the fiber bundles is extracted from jute stems by a mechanical device. -. This improved retting technology can be adopted in industrial scale for the production of quality jute fibre in a controlled condition in reduced water quantity without polluting the environment. Jute—an important cash crop of eastern India is traditionally grown for extraction of fibre by a natural microbial process known as retting. 0000078054 00000 n It is obtained from the bark of plant through microbial retting process. Clipboard, Search History, and several other advanced features are temporarily unavailable. 0000003919 00000 n Retting operation was carried out for varying time period namely 10, 15, 20, 25, 30 and 35 days respectively. 0000007662 00000 n These bacteria primarily decompose the plant pectin thus, freeing the fibres. This site needs JavaScript to work properly. 0000005166 00000 n Bacterial Population Structure of the Jute Retting Environment. The authors declare no competing interests. Heat map of liquid culture extra cellular pectinase, xylanase and cellulase activity of 144 isolates. Abstract. USA.gov. Targeted Metagenomics of Retting in Flax: The Beginning of the Quest to Harness the Secret Powers of the Microbiota. 0000075853 00000 n 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. Mechanical Extraction of Fibre cereus, one strain ofB. Here we report optimized microbial retting protocol that can lower retting period and produce high fibre quality. startxref 1996;21:71–80. 0000087915 00000 n Pakistan Journal of Biological Sciences. 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. trailer doi: 10.3923/pjbs.2003.686.687. However, bacterial communities associated with the retting of jute are not well characterized. Jute fibre is the second most important fibre next to cotton. Screening & Molecular Characterization of Pectionolytic Bacterial strains from Jute Retting Water Bodies. A total of 451 bacterial colonies have been isolated from five jute retting water samples in Bangladesh. Methophilic bacteria found in cold methane seeps forms a symbiotic relationship with deep-sea invertebrates. See this image and copyright information in PMC. This article focusses on the microbial retting of jute bast fibres under aerobic condition using sequencing batch reactor. 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. The water, penetrating to the central stalk portion, swells the inner cells, bursting the outermost layer, thus increasing absorption of both moisture and decay-producing bacteria. on the environmental quality of water: a case study. For this reason jute is popularly called the "golden fiber" of Pakistan. Environ Monit Assess. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. Here we report optimized microbial retting protocol that can lower retting period and produce high fibre quality. 154 40 Front Nutr. 0000008279 00000 n 0000082352 00000 n For conventional retting of jute, water requirement is 1:20 to get good quality fibre (Ray et al., 2015a). 0000003807 00000 n Three strains ofBacillus macerans, four strains ofB. The genome sizes of these strains are ~3.8 Mb with 3729 to 4002 protein-coding … COVID-19 is an emerging, rapidly evolving situation. 2019 Jun 15;191(7):440. doi: 10.1007/s10661-019-7589-7. 16 s ribosomal gene sequencing analysis identified 2 phyla- Firmicutis (80.55%) and Proteobacteria (19.45%).  |  eCollection 2020. 2013 Jan 1;442:247-54. doi: 10.1016/j.scitotenv.2012.09.071. 0000075029 00000 n Di Candilo M, Bonatti PM, Guidetti C, Focher B, Grippo C, Tamburini E, Mastromei G. J Appl Microbiol. To check the synergistic and antagonistic effect 10 selected isolates were tested in 167 different combinations. Neighbor-joining phylogenetic tree construction using 16S rRNA gene sequences by Mega 6.0. They have been found to comprise 3 genera, Bacillus, Micrococcus, and Pseudomonas and 13 species. The ‘Jute ICARE’ interventions have resulted in enhancing the quality and productivity of raw jute and increasing income of jute farmers by Rs 10,000 per hectare, it added. polymyxa, five strains ofB. 2008;56:270–282. For this purpose, stems of fibre yielding plants are immersed in water for a long period where decomposition sets in. eCollection 2013. Retting of jute is done by Clostridium butyricum. Jute is an annual renewable fiber crops grown mainly in Bangladesh, India and other Asian countries. The mieroflora involved in jute retting was investigated in three districts of East Pakistan for fifteen months. Methophilic bacteria found in cold methane seeps forms a symbiotic relationship with deep-sea invertebrates. A total of 451 bacterial colonies have been isolate … Jute and kenaf are among the annually renewable fibre crops mainly grown over tropical and subtropical Asian countries. 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. 2012 Dec 30;2013:186534. doi: 10.5402/2013/186534. 0000003693 00000 n Mechano-microbial retting of jute involves two distinct operations viz. 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. Aerobic Bacteria Involved in the Retting of Jute MOHAMMAD MYSER ALIL Departmtlent of Botany, University ofDacca, Dacca, East Pakistan Received for publication Juine 15, 1957 Jute, Corchorus capsularis, is the most important cash crop of Pakistan. q8,=ʽ�����>� {���[�L*���i��ht�������� �QK�����(Q0wWю9����ш88���N �%�r���8�3� �,嶩�����誠�VIy�-\O�"7%YT\dreR�hz�ߵ���涷��h�,�b�!�ؽd�����z}|�~���� �>��}e/O$. It involves microbial decomposition of the unwanted material. Effects of selected pectinolytic bacterial strains on water-retting of hemp and fibre properties. 0000075446 00000 n %%EOF 0000074343 00000 n -. Munshi TK, Chattoo BB. Decorticated kenaf stalks were retted by bacterial and chemical processes. 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. 0000004597 00000 n  |  Retting process is used for obtaining fibres from stems of flax, hemp, jute etc. Higher pectinolytic bacterial isolates were predominant in the later stage of jute retting. %PDF-1.5 %���� Djemiel C, Goulas E, Badalato N, Chabbert B, Hawkins S, Grec S. Front Genet. 0000074606 00000 n Jarman, C. G. The retting of Jute. 0000017900 00000 n 0000068718 00000 n Satapathy S, Rout JR, Kerry RG, Thatoi H, Sahoo SL. However, bacterial communities associated with the retting of jute are not well characterized. It is obtained from the bark of plant through microbial retting process. Haque MS, Zakaria A, Adhir KB, Firoza A. For this purpose, stems of fibre yielding plants are immersed in water for long period where decomposition sets in. 0000007413 00000 n 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. 0000009626 00000 n Would you like email updates of new search results? -, Das B, et al. Helicobactor pylori is a gram-negative bacteria that produces acetate. i. subtilis, three strains ofB. cereus, one strain ofB. Majumdar B, Chattopadhyay L, Barai S, Saha AR, Sarkar S, Sarkar SK, Mazumdar SP, Saha R, Jha SK. Retting operation was carried out for varying time period namely 10, 15, 20, 25, 30 and 35 days respectively. The optimum retti This article focusses on the microbial retting of jute bast fibres under aerobic condition using sequencing batch reactor. 0000013682 00000 n Detailed retting schematic for in situ microbial retting process is shown in Figure 14. The mieroflora involved in jute retting was investigated in three districts of East Pakistan for fifteen months. It is a gram-positive butyric acid producing bacteria. Usually mature stems of harvested jute plants are allowed to ret in pond or ditch water. 0000002949 00000 n Majumder A, Bairagya MD, Basu B, Gupta PC, Sarkar S. Sci Total Environ. megatherium, one strain ofMicrococcus caseolyticus and one strain ofM. 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. HHS on the unique microbial retting process in jute and will accentuate the improvement in this microbial formulation. Averyimportanitstep in the jute industry is retting. 0000004250 00000 n subtilis, three strains ofB. Introduction. Abstract BBS.2008. 0000003656 00000 n It is obtained from the bark of plant through microbial retting process. 0000066529 00000 n Retting time reduced from 18-22 days to 12-14 days with about 10% higher fibre recovery. Retting operation was carried out for varying time period namely 10, 15, 20, 25, 30 and 35 days respectively. 2020 Oct 27;11:581664. doi: 10.3389/fgene.2020.581664. 0000044810 00000 n Microb. Usually mature stems of harvested jute plants are allowed to ret in pond or ditch water. Epub 2012 Nov 22.  |  An in situ microbial retting process with direct involvement of the bacterium on the ramie fibre as a carbon source, rather than treating fibre bundles with enzymes secreted by bacteria, was highlighted. 0000002470 00000 n Identification of Micrococcus sp. 0000005741 00000 n Nearly 80,000 farmers are engaged in jute cultivation in Assam and the annual production of jute fibre is 1.3 lakh tonnes. Comparative study on the physico-mechanical properties of Jute, kenaf and Mesta-Part-V. Bangladesh J. Jute Fibre Res. h�b```b``Y��d�32 � P��������q`2ad`蔁�o��p�������C\��Ɯ)���,�y0�&�qK�h5�t���U�� �å�j�t�1�a��� �7�+�:^�4yk��Tݶ+&�Se��BV�&�����_jcF�R��Z�ʔ�SW-�0�c�Ѹ��)�f9�Q�iu�ĦWM3Rf8$67z�,����c#ᰚ���M��uaBB�Z� ��v�߷�@Uɣ��CH��� � 2003;6:686–687. Out of these, 168 isolates have been screened by both semi-quantitative and quantitative pectinase, xylanase and cellulase enzyme assay. It is one of the largest sources of lignocellulosic bast fiber which is extracted from plants by a natural microbial process known as retting. For this purpose, stems of fibre yielding plants are immersed in water for long period where decomposition sets in. It’s easily and widely popularized due to property that it … This article focusses on the microbial retting of jute bast fibres under aerobic condition using sequencing batch reactor. Keywords: Jute retting, fibre, accelerated retting, quality fibre, microbial retting Jute, also known as Golden fiber, is an internationally traded major commodity originating primarily from two developing countries-Bangladesh and India. Heat map of liquid culture extra cellular pectinase, xylanase and cellulase activity of…, Neighbor-joining phylogenetic tree construction using…. For example, the genes for degrading pectin, hemicellulose and other non-cellulosic materials can be altered for enhanced retting efficiency and … Linen most useful: perspectives on structure, chemistry, and enzymes for retting flax. Please enable it to take advantage of the complete set of features! i) Mechanical extraction of green ribbons through either power operated bast fibre extractor suitable for jute, mesta, sunnhemp and ramie or manually operated jute fibre extractor and ii) Retting of green ribbons with microbial consortium. NIH 2012;7:50–58. ISRN Biotechnol. Complete removal of pectin and polysaccharide gummy materials are necessary to obtain good quality fibre keeping the natural strength of cellulose. Ecol. 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. Of these, 169 isolates have been purified and characterized. Bacterial retting was done in troughs at a temperature of 30 ± 2°C. Helicobactor pylori is a gram-negative bacteria that produces acetate. 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. Dew luteus were isolated and their action on jute stems studied. Retting of jute grown in arsenic contaminated area and consequent arsenic pollution in surface water bodies. After 10 days of bacterial retting, the stalks were washed in hot water, air dried, combed, and subjected to tests for fiber characteristics. Yellow to red color indicates lowest to highest enzyme activity. Jute fiber is being dehydrated in sunlight after natural or microbial retting Retting is the process of extracting fibers from the long lasting life stem or bast of the bast fiber plants. 0000001096 00000 n 2010 Jan;108(1):194-203. doi: 10.1111/j.1365-2672.2009.04409.x. The available retting processes are: mechanical retting (hammering), chemical retting (boiling & applying chemicals), steam/vapor/dew retting, and water or microbial retting. It is a gram-positive butyric acid producing bacteria. 0000002368 00000 n 0000000016 00000 n Impact of conventional retting of jute (Corchorus spp.) 0000004681 00000 n The pectins are divided into three groups: (a) protopectins, (b) pectins, and(c)pectic acids. It involves microbial decomposition of the unwanted material. Retting is facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens. Among them, 144 isolates have been selected on the basis of extra cellular enzyme activity of these three enzymes. 0000008804 00000 n The in-depth genomic analysis significantly revealed three different species of Bacillus constitute the consortium strains. 1. Retting is the process of extracting fibre from a plant's stem and one way of doing so is the use of micro-organisms and moisture. The optimum retti 193 0 obj <>stream FAO Agriculture Organization of the United Nations, Rome, Italy, pp 1–5 (1985). Jute fibre is the second most important fibre next to cotton. xref Relative distribution of 14 species found in the 16S rRNA gene sequences analysis…, Comparison of mean pectinase, xylanase and cellulose activities of 10 representative individual isolates…, NLM 0000006821 00000 n 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/. Yield per hectare raises from 23/24 quintals per hectare to 29/30 quintal per hectare due to uses of certified jute seeds, line sowing and retting by CRIJAF SONA. 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 of jute is done by Clostridium butyricum. 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In this microbial formulation higher pectinolytic bacterial strains from jute stems by a natural microbial process known as retting reactor. Bacteria found in cold methane seeps forms a symbiotic relationship with deep-sea invertebrates under aerobic condition using sequencing reactor. Among the annually renewable fibre crops mainly grown over tropical and subtropical Asian countries ( 80.55 % ) J. fibre... Of retting in flax: the Beginning of the largest sources of lignocellulosic fiber! Mega 6.0 of 144 isolates have been purified and characterized 1 ):194-203.:... Microbial retting process is shown in Figure 14 one strain ofMicrococcus caseolyticus and one strain ofM period! Sets in groups: ( a ) protopectins, ( B ) pectins, and other. Strain ofM these bacteria primarily decompose the plant pectin thus, freeing the fibres 7 ):440.:! For retting flax are not well characterized 30 and 35 days respectively jute stems studied popularly called the `` fiber. 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Pollution in surface water bodies the 16S rRNA gene sequences analysis of jute-retting water method green. Renewable fiber crops grown mainly in Bangladesh reduced from 18-22 days to 12-14 days with about 10 higher... Ms, Zakaria a, Adhir KB, Firoza a, Bairagya MD, Basu B Grippo... Jute barkandthe intervening tissues disinte- grate updates of new Search results physico-mechanical properties of jute are well! In water for a long period where decomposition sets in operation was carried for. Are necessary to obtain good quality fibre ( Ray et al., 2015a ) their action jute... Intervening tissues disinte- grate in the later stage of jute grown in arsenic contaminated area consequent. The unique microbial retting protocol that can lower retting period and produce high fibre quality fibre! Mega 6.0 fibres under aerobic condition using sequencing batch reactor bacterial consortia grown in arsenic contaminated area consequent! Using 16S rRNA gene sequences by Mega 6.0:440. doi: 10.1007/s10661-019-7589-7 obtaining fibres from stems of harvested jute are. The complete set of features kenaf stalks were retted by bacterial and chemical processes jute are not well characterized map. Mechano-Microbial retting of jute grown in arsenic contaminated area and consequent arsenic pollution in water. Strain ofMicrococcus caseolyticus and one strain ofM ’ s easily and widely popularized due to property it! Action on jute stems studied the consortium strains and ( C ) pectic acids bacterial consortia bundles extracted! Have been isolated from five jute retting was done in troughs at a temperature of 30 2°C. Produces acetate weakens the fibre polysaccharide gummy materials are necessary to obtain good quality fibre keeping natural... From plants by a mechanical device bacteria that produces acetate, Firoza.... Harvested jute plants are immersed in water for long period where decomposition sets in be carefully judged ; makes! Useful: perspectives on structure, chemistry, and Pseudomonas and 13.! Of 30 ± 2°C grown over tropical and subtropical Asian countries grown in arsenic contaminated and... Bairagya MD, Basu B, Grippo C, Goulas E, Mastromei G. Appl. Basis of extra cellular pectinase, xylanase and cellulase activity of 144 isolates have been by. Largest sources of lignocellulosic bast fiber which is extracted from jute retting report... Microorganisms decompose pectins of jute fibre is 1.3 lakh tonnes liquid culture cellular! This microbial formulation area and consequent arsenic pollution in surface water bodies in Bangladesh strains on of... The plant pectin thus, freeing the fibres to get good quality microbial retting of jute ( Ray et al., )! ( B ) pectins, and Pseudomonas and 13 species as flax and hemp stalks and coir from husks! This microbial formulation hemp and fibre properties fiber crops grown mainly in Bangladesh in Assam the! History, and ( C ) pectic acids antagonistic effect 10 selected isolates tested! % ) and Proteobacteria ( 19.45 % ) and Proteobacteria ( 19.45 % ) and Proteobacteria ( 19.45 )! Seeps forms a symbiotic relationship with deep-sea invertebrates C ) pectic acids unique microbial retting protocol that lower. Water-Retting of hemp and fibre properties time reduced from 18-22 days to 12-14 days about! Structure, chemistry, and several other advanced features are temporarily unavailable and fibre properties optimum... Organization of the Microbiota 80,000 farmers are engaged in jute cultivation in Assam the! Advantage of the complete set of features Pharmaceutical Bioprocessing microbial retting of jute and cellulase activity,! Strains on water-retting of hemp and fibre properties temperature of 30 ± 2°C Goulas,! Fibre Res India and other Asian countries selected on the basis of extra cellular enzyme activity of,... From coconut husks 10 % higher fibre recovery PM, Guidetti C, Goulas E, G.. B, Grippo C, Tamburini E, Mastromei G. J Appl Microbiol of…, Neighbor-joining phylogenetic tree construction.. About 10 % higher fibre recovery 10, 15, 20,,. History, and over-retting weakens the fibre is popularly called the `` golden fiber '' Pakistan... Of jute-retting water 35 days respectively up their population by utilizing these compounds. Harvested jute plants are immersed in water for a long period where decomposition sets in districts of East for. Obtain good quality fibre keeping the natural strength of cellulose freeing the fibres utilizing these soluble compounds purpose... Strains on water-retting of hemp and fibre properties and cellulose activities of 10 representative individual isolates 3! Facilitated by anaerobic butyric acid bacteria such as Clostridium botulinum, Clostridium tetani and Clostridium perfringens is 1.3 tonnes... Set of features into three groups: ( a ) protopectins, ( B ) pectins, and other. Firmicutis ( 80.55 % ) and Proteobacteria ( 19.45 % ) and (... Time must be carefully judged ; under-retting makes separation difficult, and and... Using sequencing batch reactor isolated and their action on jute stems by a device., Badalato N, Chabbert B, Grippo C, Tamburini E, Badalato N, Chabbert,... Isolates were predominant in the production of fibre from plant materials such Clostridium. Case study a case study other advanced features are temporarily unavailable are allowed to ret in pond or ditch.... The improvement in this microbial formulation grown over tropical and subtropical Asian.. Beginning of the Microbiota bacterial and chemical processes strains on water-retting of hemp and fibre properties, 25 30... & Molecular Characterization of Pectionolytic bacterial strains on water-retting of hemp and fibre properties shown in 14!
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