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Narwade JD, Odaneth AA, Lele SS. Solid-state fermentation in an earthen vessel: Trichoderma viride spore-based biopesticide production using corn cobs. Fungal Biol 2023; 127:1146-1156. [PMID: 37495305 DOI: 10.1016/j.funbio.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/08/2023] [Accepted: 06/08/2023] [Indexed: 07/28/2023]
Abstract
The present study reports the production of Trichoderma viride spores in an earthen vessel using corn cobs. Using 4 kg of corn cobs, spore-based biopesticide was produced after 21 d with a maximum spore count of 2.50 × 109 spores/g of substrate and a moisture reduction from 70.80% w/v to 8.10% w/v. The gas chromatography-mass spectrometry analysis of its ethyl acetate extract revealed that it had 20 secondary metabolites, of which 13 were known to be antimicrobial, one was plant growth-promoting, and one performed both functions. Dried extract dissolved in methanol showed the minimum fungicidal concentration of 5-10 mg/ml against Rhizoctonia solani on potato dextrose agar plate. Plate assays and pot experiments on Rhizoctonia solani-infected potato plants exhibited good antifungal and plant growth-promoting activities. The biopesticide showed 71.28% viability over 10 m of storage in the same earthen vessel at 30 ± 2 °C. Thus, a simple, robust technology was developed with good potential for farm deployment.
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Affiliation(s)
- J D Narwade
- Institute of Chemical Technology Mumbai, Marathwada Campus, Jalna, 431203, India.
| | - A A Odaneth
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Matunga, Mumbai, 400019, India.
| | - S S Lele
- Institute of Chemical Technology Mumbai, Marathwada Campus, Jalna, 431203, India.
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2
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Yang S, Liu H, Liao X, Kong X, Xu Z. Extraction and profiling of proteins in yellow powder from sweet potato starch wastewater using response surface methodology and proteomic approach. J Food Sci 2021; 87:339-352. [PMID: 34954823 DOI: 10.1111/1750-3841.16017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/19/2021] [Accepted: 11/30/2021] [Indexed: 11/27/2022]
Abstract
Sweet potato starch industry produce generous high soluble solid wastewater containing various biochemicals such as proteins. The wastewater could be spray dried into a product called yellow powder (YP). Proteins in the YP were recovered and profiled in this study. The extraction conditions were optimized on dependent variables of YP material-water ratio, pH, and temperature using response surface methodology (RSM). Maximum protein yield (61.2%) using RSM were observed at a material-water ratio of 50 (mg/L), pH 9.5, and extraction temperature of 30℃. Subsequently, a total of 25 proteins were identified by proteomic analysis, which mainly were sporamins, β-amylase, starch phosphorylase, polyphenol oxidase, and superoxide dismutase. The extraction and profiling of proteins from YP would contribute to a comprehensive utilization and added value of the wastewater produced by sweet potato starch processing industry. PRACTICAL APPLICATION: This study reported the recovery (61.2%) of proteins and protein profile of yellow powder (byproducts) from sweet potato starch wastewater. These information could contribute to the valorization a yellow powder into high-value ingredients.
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Affiliation(s)
- Shini Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Haihua Liu
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | | | - Zhenzhen Xu
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing, China
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3
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Kalia S, Bhattacharya A, Prajapati SK, Malik A. Utilization of starch effluent from a textile industry as a fungal growth supplement for enhanced α-amylase production for industrial application. CHEMOSPHERE 2021; 279:130554. [PMID: 33873067 DOI: 10.1016/j.chemosphere.2021.130554] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/19/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Desizing process in textile industry produces large volume of starch effluent. This carbon-rich waste can be used for resource recovery, such as the production of industrially useful enzymes. The present work assesses the usability of starch effluent from textile industry as an additional carbon source for enhanced production of α-amylase during solid-state fermentation (SSF) of agro-wastes by Trichoderma reesei. A significant increase (p ≤ 0.05) in α-amylase activity (25.48 ± 1.12 U mL-1) was observed with supplementation of starch effluent in SSF. Partial purification of α-amylase by 80% ammonium sulphate precipitation produced a yield of 58.39% enzyme with purification fold of 1.89. The enzyme was thermally stable at 40 °C with 90% residual activity after 5 h and 70% residual activity at 50 °C after 3 h. Using Michaelis-Menten kinetics analysis, the estimated Km and Vmax values for the partially purified α-amylase were found to be 2.55 mg mL-1 and 53.47 U mg-1, respectively. For the rapid assessment of the industrial application, desizing of the fabric was attempted. The cotton fabric was efficiently desized using α-amylase (at a concentration of 1% on the weight of fabric basis) at 80 °C. The present work demonstrates starch effluent from desizing process as a resource for the production of amylase. The amylase can further be used in the desizing process. With in-depth research, the work may lead to the development of a closed-loop, waste-recycling process for the textile industry.
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Affiliation(s)
- Shweta Kalia
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, 110016, India.
| | - Arghya Bhattacharya
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, 110016, India; Department of Biotechnology, Gandhi Institute of Engineering and Technology University, Gunupur, Odisha, 765022, India.
| | - Sanjeev Kumar Prajapati
- Environment and Biofuel Research Lab, Department of Hydro and Renewable Energy, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India.
| | - Anushree Malik
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, 110016, India.
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Serna-Díaz MG, Mercado-Flores Y, Jiménez-González A, Anducho-Reyes MA, Medina-Marín J, Seck Tuoh-Mora JC, Téllez-Jurado A. Use of barley straw as a support for the production of conidiospores of Trichoderma harzianum. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 26:e00445. [PMID: 32280603 PMCID: PMC7139161 DOI: 10.1016/j.btre.2020.e00445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/02/2020] [Accepted: 03/08/2020] [Indexed: 11/07/2022]
Abstract
Barley straw is an excellent support of conidiospores production. The addition of mineral salts substantially improves of conidiospores production. Pre-treating the barley straw with a water wash favors the conidiation process. 80 % humidity favors the conidiation of T. harzianum.
In this work was to evaluate the conidiospores production of Trichoderma harzianum using barley straw as substrate. Four growth conditions were used; washed and unwashed barley straw and washed and unwashed barley straw supplemented with mineral salts. The highest spore production was observed when washed barley straw supplemented with mineral salts with 1.56 × 1010 conidiospores/gram of dry matter (gdm) at 216 h of cultivation was used. The effect of substrate moisture on spore production was studied, three initial moisture levels of the substrate were tested and it was observed that a humidity of 80 % of the substrate improves the production of conidiospores reaching a concentration of 2.35 × 1010 conidiospores/gdm at 136 h. Finally, conidiospores viability was evaluated for 12 months by keeping them on the conidia and substrate, and viability of 71 % of the conidiospores was observed, so this maintenance method is an excellent means of conserving the conidiospores viability.
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Affiliation(s)
- M G Serna-Díaz
- Engineering Department, Autonomous University of Hidalgo State, Carretera Pachuca-Tulancingo, Km 4.5, Col. Carboneras, C.P. 42184, Mineral De La Reforma, Hidalgo, Mexico
| | - Y Mercado-Flores
- Agrobiotechnology Laboratory, Polytechnic University of Pachuca, Carretera Pachuca-Cd. Sahagún, Km 20, ExHacienda De Santa Bárbara, C.P. 43830, Zempoala, Hidalgo, Mexico
| | - A Jiménez-González
- Agrobiotechnology Laboratory, Polytechnic University of Pachuca, Carretera Pachuca-Cd. Sahagún, Km 20, ExHacienda De Santa Bárbara, C.P. 43830, Zempoala, Hidalgo, Mexico
| | - M A Anducho-Reyes
- Agrobiotechnology Laboratory, Polytechnic University of Pachuca, Carretera Pachuca-Cd. Sahagún, Km 20, ExHacienda De Santa Bárbara, C.P. 43830, Zempoala, Hidalgo, Mexico
| | - J Medina-Marín
- Engineering Department, Autonomous University of Hidalgo State, Carretera Pachuca-Tulancingo, Km 4.5, Col. Carboneras, C.P. 42184, Mineral De La Reforma, Hidalgo, Mexico
| | - J C Seck Tuoh-Mora
- Engineering Department, Autonomous University of Hidalgo State, Carretera Pachuca-Tulancingo, Km 4.5, Col. Carboneras, C.P. 42184, Mineral De La Reforma, Hidalgo, Mexico
| | - A Téllez-Jurado
- Agrobiotechnology Laboratory, Polytechnic University of Pachuca, Carretera Pachuca-Cd. Sahagún, Km 20, ExHacienda De Santa Bárbara, C.P. 43830, Zempoala, Hidalgo, Mexico
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Innovative Feasibility Study for the Reclamation of the Cascajo Wetlands in Peru Utilizing Sustainable Technologies. WATER 2020. [DOI: 10.3390/w12041097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Wetlands are an important feature for our society that provides versatile benefits, such as habitat for diverse wildlife, shoreline erosion protection, flood control, and mitigation of climate change through capture and storage of carbon. The aim of this work was to assess the application of nanotechnologies for the restoration of the water quality in the Cascajo Wetlands, Peru, where the water quality was deteriorated. Ceramic-based bio-filters (CBBFs) were used to reduce and buffer the contamination rates of pollutants, whereas micro-nano bubbles (MNBs) were applied to increase the dissolved oxygen and release free radicals in water. Additionally, bio-fence was implemented to prevent water intrusion from the ocean. Remote sensing data through the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI) was used to monitor the water surface condition. With treatment of CBBFs and MNBs for 13 months, we observed reduction in the chemical oxygen demand (COD), biological oxygen demand (BOD), total nitrogen (TN), and total phosphate (TP) in the water body, showing removal percentages of 98.5%, 97.5%, 98.1%, 98.5%, and 94.6%, respectively, in comparison with values before starting the implementation. The trends of NDVI and EVI over seasons are not completely aligned with the results taken from the wetlands treated with MNBs, CBBFs and bio-fence. While TN was highly correlated with the empirical value of TN based on remote sensing, no correlation was observed between COD and empirical COD. The use of eco-friendly techniques has performed efficiently to remove the pollutant.
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Maiti S, Gallastegui G, Suresh G, Sarma SJ, Brar SK, Drogui P, LeBihan Y, Buelna G, Verma M, Soccol CR. Hydrolytic pre-treatment methods for enhanced biobutanol production from agro-industrial wastes. BIORESOURCE TECHNOLOGY 2018; 249:673-683. [PMID: 29091853 DOI: 10.1016/j.biortech.2017.09.132] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/18/2017] [Accepted: 09/19/2017] [Indexed: 06/07/2023]
Abstract
Brewery industry liquid waste (BLW), brewery spent grain (BSG), apple pomace solid wastes (APS), apple pomace ultrafiltration sludge (APUS) and starch industry wastewater (SIW) have been considered as substrates to produce biobutanol. Efficiency of hydrolysis techniques tested to produce fermentable sugars depended on nature of agro-industrial wastes and process conditions. Acid-catalysed hydrolysis of BLW and BSG gave a total reducing sugar yield of 0.433 g/g and 0.468 g/g respectively. Reducing sugar yield from microwave assisted hydrothermal method was 0.404 g/g from APS and 0.631 g/g from APUS, and, 0.359 g/g from microwave assisted acid-catalysed SIW dry mass. Parameter optimization (time, pH and substrate concentration) for acid-catalysed BLW hydrolysate utilization using central composite model technique produced 307.9 g/kg glucose with generation of inhibitors (5-hydroxymethyl furfural (20 g/kg), furfural (1.6 g/kg), levulinic acid (9.3 g/kg) and total phenolic compound (0.567 g/kg)). 10.62 g/L of acetone-butanol-ethanol was produced by subsequent clostridial fermentation of the substrate.
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Affiliation(s)
- Sampa Maiti
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Gorka Gallastegui
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada; University of the Basque Country (UPV/EHU), Department of Chemical and Environmental Engineering, University College of Engineering of Vitoria/Gasteiz, Nieves Cano 12, 01006 Vitoria/Gasteiz, Spain
| | - Gayatri Suresh
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Saurabh Jyoti Sarma
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Satinder Kaur Brar
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada.
| | - Patrick Drogui
- Institut national de la recherche scientifique, Centre - Eau Terre Environnement, 490, Rue de la Couronne, Québec G1K 9A9 Canada
| | - Yann LeBihan
- Centre de recherche industrielle du Québec (CRIQ), Québec, Canada
| | - Gerardo Buelna
- University of the Basque Country (UPV/EHU), Department of Chemical and Environmental Engineering, University College of Engineering of Vitoria/Gasteiz, Nieves Cano 12, 01006 Vitoria/Gasteiz, Spain
| | - Mausam Verma
- CO(2) Solutions Inc., 2300, rue Jean-Perrin, Québec, Québec G2C 1T9, Canada
| | - Carlos Ricardo Soccol
- Bioprocess Engineering and Biotechnology Department, Federal University of Paraná, Centro Politécnico, Usina Piloto B, CEP 81531-990 Curitiba, Paraná, Brazil
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Nagavalli M, Ponamgi SPD, Girijashankar V, Venkateswar Rao L. Solid state fermentation and production of rifamycin SV using Amycolatopsis mediterranei. Lett Appl Microbiol 2014; 60:44-51. [PMID: 25256628 DOI: 10.1111/lam.12332] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/09/2014] [Accepted: 09/22/2014] [Indexed: 11/28/2022]
Abstract
UNLABELLED Production of Rifamycin SV from cheaper agro-industrial by-products using mutant strain of Amycolatopsis mediterranei OVA5-E7 in solid state fermentation (SSF) was optimized. Among the agro-based substrates used, ragi bran was found suitable for maximizing the yield of Rifamycin SV (1310 mg 100 g(-1) ds). The yield can be further enhanced to 19·7 g Kg(-1) of dry substrate by supplementing the substrate with deoiled cotton cake (10% w/w) using optimized fermentation parameters such as maintaining 80% moisture, pH 7·0, 30°C incubation temperature, inoculum 25% v/w and carrying the solid state fermenting for 9 days. Manipulating these seven specifications, the end product yield achieved in our experimentation was 20 g of Rifamycin SV Kg(-1) ds. Eventually, an overall 5-fold improvement in Rifamycin SV production was achieved. SIGNIFICANCE AND IMPACT OF THE STUDY Antibiotics such as rifamycin are broad-spectrum antimicrobial drugs used in large-scale worldwide as human medicine towards controlling diseases. Amycolatopsis mediterranei strain which produces this antibiotic was earlier used in submerged fermentation yielded lower amounts of rifamycin. By employing cheaper agro-industrial by-products, we produced upto 20 g rifamycin SV per Kg dry substrate used under optimized solid state fermentation conditions. Keeping in view, the role of rifamycin in meeting the medical demands of world's increasing population; we successfully used an improved strain on cheaper substrates with optimized fermentation parameters and achieved a 5-fold improvement in rifamycin SV production.
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Affiliation(s)
- M Nagavalli
- Department of Microbiology, Osmania University, Hyderabad, India
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Mitigating nitrous oxide emissions from tea field soil using bioaugmentation with a Trichoderma viride biofertilizer. ScientificWorldJournal 2014; 2014:793752. [PMID: 24955418 PMCID: PMC3997915 DOI: 10.1155/2014/793752] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 02/05/2014] [Indexed: 11/17/2022] Open
Abstract
Land-use conversion from woodlands to tea fields in subtropical areas of central China leads to increased nitrous oxide (N2O) emissions, partly due to increased nitrogen fertilizer use. A field investigation of N2O using a static closed chamber-gas chromatography revealed that the average N2O fluxes in tea fields with 225 kg N ha−1 yr−1 fertilizer application were 9.4 ± 6.2 times higher than those of woodlands. Accordingly, it is urgent to develop practices for mitigating N2O emissions from tea fields. By liquid-state fermentation of sweet potato starch wastewater and solid-state fermentation of paddy straw with application of Trichoderma viride, we provided the tea plantation with biofertilizer containing 2.4 t C ha−1 and 58.7 kg N ha−1. Compared to use of synthetic N fertilizer, use of biofertilizer at 225 kg N ha−1 yr−1 significantly reduced N2O emissions by 33.3%–71.8% and increased the tea yield by 16.2%–62.2%. Therefore, the process of bioconversion/bioaugmentation tested in this study was found to be a cost-effective and feasible approach to reducing N2O emissions and can be considered the best management practice for tea fields.
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Bioconversion of wastewater from sweet potato starch production to Paenibacillus polymyxa biofertilizer for tea plants. Sci Rep 2014; 4:4131. [PMID: 24576979 PMCID: PMC3937799 DOI: 10.1038/srep04131] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 02/04/2014] [Indexed: 11/11/2022] Open
Abstract
Wastewater from the sweet potato starch industry is a large source of nutrient-rich substrates. We assessed whether this wastewater could be used to produce Paenibacillus polymyxa biofertilizer for foliar application to tea trees. Using the central composite design methods we experientially determined that the optimal culture conditions for P. polymyxa were pH, 6.5; temperature, 29.0°C; and incubation time, 16 h. Under these conditions, a maximum biomass of 9.7 × 109 cfu/mL was achieved. We then conducted a yearlong field investigation to determine the effect of P. polymyxa biofertilizer on the growth of tea plants (Camellia sinensis). Tea yield, quantity of water extract, and tea polyphenol levels were significantly higher after foliar application of the biofertilizer compared to that in the controls by an average of 16.7%, 6.3%, and 10.4%, respectively. This approach appears to be technically feasible for organic tea production, and is an environmentally friendly way to utilize wastewater.
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Isolation and Identification of Endophytic Fungi from Actinidia macrosperma and Investigation of Their Bioactivities. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2012:382742. [PMID: 22203869 PMCID: PMC3235672 DOI: 10.1155/2012/382742] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 08/28/2011] [Accepted: 09/11/2011] [Indexed: 12/02/2022]
Abstract
Endophytic fungi from the Chinese medicinal plant Actinidia macrosperma were isolated and identified for the first time. This was the first study to evaluate their cytotoxic and antitumour activities against brine shrimp and five types of tumour cells, respectively. In total, 17 fungal isolates were obtained. Five different taxa were represented by 11 isolates, and six isolates were grouped into the species of Ascomycete Incertae sedis with limited morphological and molecular data. Cytotoxic activity has been found in most isolates except AM05, AM06, and AM10. The isolates AM07 (4.86 μg/mL), AM11 (7.71 μg/mL), and AM17 (14.88 μg/mL) exhibited significant toxicity against brine shrimp. The results of the MTT assay to assess antitumour activity revealed that 82.4% of isolate fermentation broths displayed growth inhibition (50% inhibitory concentration IC50< 100 μg/mL). Moreover, AM07, AM11, and AM17 showed strong antitumour activity in all the cell lines examined. These results suggest that endophytic fungi in A. macrosperma are valuable for the isolation and identification of novel cytotoxic and antitumour bioactive agents.
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Savitha S, Sadhasivam S, Swaminathan K, Lin FH. Fungal protease: Production, purification and compatibility with laundry detergents and their wash performance. J Taiwan Inst Chem Eng 2011. [DOI: 10.1016/j.jtice.2010.05.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Dhillon GS, Brar SK, Verma M, Tyagi RD. Enhanced solid-state citric acid bio-production using apple pomace waste through surface response methodology. J Appl Microbiol 2011; 110:1045-55. [PMID: 21294819 DOI: 10.1111/j.1365-2672.2011.04962.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To evaluate the potential of apple pomace (AP) supplemented with rice husk for hyper citric acid production through solid-state fermentation by Aspergillus niger NRRL-567. Optimization of two key parameters, such as moisture content and inducer (ethanol and methanol) concentration was carried out by response surface methodology. METHODS AND RESULTS In this study, the effect of two crucial process parameters for solid-state citric acid fermentation by A. niger using AP waste supplemented with rice husk were thoroughly investigated in Erlenmeyer flasks through response surface methodology. Moisture and methanol had significant positive effect on citric acid production by A. niger grown on AP (P < 0·05). Higher values of citric acid on AP by A. niger (342·41gkg(-1) and 248·42gkg(-1) dry substrate) were obtained with 75% (v/w) moisture along with two inducers [3% (v/w) methanol and 3% (v/w) ethanol] with fermentation efficiency of 93·90% and 66·42%, respectively depending upon the total carbon utilized after 144h of incubation period. With the same optimized parameters, conventional tray fermentation was conducted. The citric acid concentration of 187·96gkg(-1) dry substrate with 3% (v/w) ethanol and 303·34gkg(-1) dry substrate with 3% (v/w) methanol were achieved representing fermentation efficiency of 50·80% and 82·89% in tray fermentation depending upon carbon utilization after 120h of incubation period. CONCLUSIONS Apple pomace proved to be the promising substrate for the hyper production of citric acid through solid-state tray fermentation, which is an economical technique and does not require any sophisticated instrumentation. SIGNIFICANCE AND IMPACT OF THE STUDY The study established that the utilization of agro-industrial wastes have positive repercussions on the economy and will help to meet the increasing demands of citric acid and moreover will help to alleviate the environmental problems resulting from the disposal of agro-industrial wastes.
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Affiliation(s)
- G S Dhillon
- INRS-ETE, Université du Québec, Québec City, QC, Canada Institut de recherche et de développement en agroenvironnement inc. (IRDA), Québec City, QC, Canada
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Zhao G, Liu J, Dong K, Zhang F, Zhang H, Liu Q, Jiao Q. Enzymatic synthesis of L-tryptophan from hair acid hydrolysis industries wastewater with tryptophan synthase. BIORESOURCE TECHNOLOGY 2011; 102:3554-3557. [PMID: 20884203 DOI: 10.1016/j.biortech.2010.09.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 09/02/2010] [Accepted: 09/04/2010] [Indexed: 05/29/2023]
Abstract
An effective method for production of L-tryptophan from hair acid hydrolysis wastewater (HHW) containing L-serine was developed by recombinant tryptophan synthase. This study provides us with an alternative HHW utilization strategy. Tryptophan synthase could efficiently convert L-serine contained in HHW to L-tryptophan at pH 8.0, 40°C and Tween-80 of 0.04%. The enzyme also showed high tolerance to ammonium chloride, a component in HHW. In a scale up study, L-serine conversion rate reach 95.1% with a final L-tryptophan concentration of 33.2 g l(-1).
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Affiliation(s)
- Genhai Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, People's Republic of China
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14
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John RP, Tyagi RD, Brar SK, Prévost D. Development of emulsion from rhizobial fermented starch industry wastewater for application as Medicago sativa seed coat. Eng Life Sci 2010. [DOI: 10.1002/elsc.201000002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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15
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Rouissi T, John RP, Brar SK, Tyagi RD, Prévost D. ORIGINAL RESEARCH: Centrifugal recovery of rhizobial cells from fermented starch industry wastewater & development of stable formulation. Ind Biotechnol (New Rochelle N Y) 2010. [DOI: 10.1089/ind.2010.6.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tarek Rouissi
- Institut National de la Recherche Scientifique – Eau Terre Environnement (INRS-ETE), Université du Québec, 490 Rue de la Couronne, Québec, Canada G1K 9A9
| | - Rojan P. John
- Institut National de la Recherche Scientifique – Eau Terre Environnement (INRS-ETE), Université du Québec, 490 Rue de la Couronne, Québec, Canada G1K 9A9
| | - Satinder K. Brar
- Institut National de la Recherche Scientifique – Eau Terre Environnement (INRS-ETE), Université du Québec, 490 Rue de la Couronne, Québec, Canada G1K 9A9
| | - Rajeshwar Dayal Tyagi
- Institut National de la Recherche Scientifique – Eau Terre Environnement (INRS-ETE), Université du Québec, 490 Rue de la Couronne, Québec, Canada G1K 9A9
| | - Danielle Prévost
- Agriculture et Agroalimentaire Canada, 2560 boul. Hochelaga, Sainte-Foy, Québec, Canada G1V 2 J3
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Vu KD, Yan S, Tyagi RD, Valéro JR, Surampalli RY. Induced production of chitinase to enhance entomotoxicity of Bacillus thuringiensis employing starch industry wastewater as a substrate. BIORESOURCE TECHNOLOGY 2009; 100:5260-5269. [PMID: 19564105 DOI: 10.1016/j.biortech.2009.03.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2007] [Revised: 03/13/2009] [Accepted: 03/13/2009] [Indexed: 05/28/2023]
Abstract
Induced production of chitinase during bioconversion of starch industry wastewater (SIW) to Bacillus thuringiensis var. kurstaki HD-1 (Btk) based biopesticides was studied in shake flask as well as in computer-controlled fermentors. SIW was fortified with different concentrations (0%; 0.05%; 0.1%; 0.2%; 0.3% w/v) of colloidal chitin and its consequences were ascertained in terms of Btk growth (total cell count and viable spore count), chitinase, protease and amylase activities and entomotoxicity. At optimum concentration of 0.2% w/v colloidal chitin, the entomotoxicity of fermented broth and suspended pellet was enhanced from 12.4x10(9) (without chitin) to 14.4x10(9) SBU/L and from 18.2x10(9) (without chitin) to 25.1x10(9) SBU/L, respectively. Further, experiments were conducted for Btk growth in a computer-controlled 15 L bioreactor using SIW as a raw material with (0.2% w/v chitin, to induce chitinase) and without fortification of colloidal chitin. It was found that the total cell count, spore count, delta-endotoxin concentration (alkaline solubilised insecticidal crystal proteins), amylase and protease activities were reduced whereas the entomotoxicity and chitinase activity was increased with chitin fortification. The chitinase activity attained a maximum value at 24 h (15 mU/ml) and entomotoxicity of suspended pellet reached highest (26.7x10(9) SBU/L) at 36 h of fermentation with chitin supplementation of SIW. In control (without chitin), the highest value of entomotoxicity of suspended pellet (20.5x10(9) SBU/L) reached at 48 h of fermentation. A quantitative synergistic action of delta-endotoxin concentration, spore concentration and chitinase activity on the entomotoxicity against spruce budworm larvae was observed.
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Affiliation(s)
- Khanh Dang Vu
- INRS-ETE, Université du Québec, 490 rue de la Couronne, Québec, Canada G1K 9A9
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Lu Z, Sun X, Yang Q, Li H, Li C. Persistence and functions of a decolorizing fungal consortium in a non-sterile biofilm reactor. Biochem Eng J 2009. [DOI: 10.1016/j.bej.2009.04.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Xie CY, Gu ZX, Fan GJ, Gu FR, Han YB, Chen ZG. Production of cordycepin and mycelia by submerged fermentation of Cordyceps militaris in mixture natural culture. Appl Biochem Biotechnol 2009; 158:483-92. [PMID: 19247587 DOI: 10.1007/s12010-009-8567-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2008] [Accepted: 02/10/2009] [Indexed: 11/25/2022]
Abstract
The submerged fermentation of Cordyceps militaris for cordycepin production and mycelial growth was investigated in this study. Three natural materials of brown rice paste (BRP), beerwort (B), and soybean meal juice (SMJ) were used for fermentation of C. militaris in shaking flasks. The effects of the ratio of three natural materials on dry mycelium weight (DMW) and on cordycepin yield (CY) were analyzed. D-Optional mixture design was used to optimize the ratio of these materials. Compared with the signal culture, the higher mycelial growth and cordycepin production were obtained in mixture. The analysis of Design Expert 6.0 indicated that BRP, B, and SMJ very significantly influenced (P < 0.001) DMW and CY of C. militaris, respectively. The highest DMW (18.96 g/l) and CY (2.17 mg/g) were both obtained at a ratio of 53:6:42. The experiments' results indicated that the above mixture of these natural materials by D-optional mixture design can be used as a proper medium for the growth of mycelium and the production of cordycepin.
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Affiliation(s)
- Chun-yan Xie
- Department of Food Science and Technology, Nanjing Agricultural University, 1 Weigang street, Nanjing, Jiangsu 210095, China
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Bhanu Prakash GVS, Padmaja V, Siva Kiran RR. Statistical optimization of process variables for the large-scale production of Metarhizium anisopliae conidiospores in solid-state fermentation. BIORESOURCE TECHNOLOGY 2008; 99:1530-7. [PMID: 17590331 DOI: 10.1016/j.biortech.2007.04.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Revised: 04/14/2007] [Accepted: 04/15/2007] [Indexed: 05/16/2023]
Abstract
Optimization of conidial production was achieved by response surface methodology (RSM), a powerful mathematical approach widely applied in the optimization of fermentation process, using the three substrates; rice, barley and sorghum at variable pH, moisture content and yeast extract concentrations. These three factors were found to be important, affecting Metarhizium anisopliae spore production. A 2(3) full factorial central composite design and RSM were applied to determine the optimal concentration of each variable. A second-order polynomial was determined by the multiple regression analysis of the experimental data. Moisture content of 75.68% for sorghum, 73.21% for barley and 22.34% for rice produced optimal results. Maximal conidial yield was recorded for rice at a pH of 7.01; at 7.06 for sorghum and at 6.76 for barley.
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Affiliation(s)
- G V S Bhanu Prakash
- Department of Botany, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India
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Cavalcante RS, Lima HLS, Pinto GAS, Gava CAT, Rodrigues S. Effect of Moisture on Trichoderma Conidia Production on Corn and Wheat Bran by Solid State Fermentation. FOOD BIOPROCESS TECH 2007. [DOI: 10.1007/s11947-007-0034-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Verma M, Brar SK, Tyagi R, Surampalli R, Valéro J. Antagonistic fungi, Trichoderma spp.: Panoply of biological control. Biochem Eng J 2007. [DOI: 10.1016/j.bej.2007.05.012] [Citation(s) in RCA: 192] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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