Nordic Pulp & Paper Research Journal, Apr 12, 2023
Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds i... more Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds in the effluent, the pulp and paper industries are trying to alter the bleaching process to limit the use of chlorine compounds and comply with regulatory, environmental, and market demands. With progress in biotechnology, enzyme technologies can effectively pre-treat lignocellulosic biomass in the pulp and paper making process. Usually, these enzymatic processes reduce the environmental impact of traditional pulp and paper-making processes, lower the overall production cost, and enhance product quality. Microbial xylanases are the potential bio-bleaching candidate due to their renewable, mild operating, highly specific, and eco-friendly nature. Xylanase enhances the efficacy of the bleaching process by breaking the β-1, 4-glycosidic backbone of the re-precipitated xylan network and removing the trapped lignin from the pulp fibers. Xylanolytic action positively influences the kappa number, hexenuronic acid, chromophore compounds release, pulp crystallinity, morphology and many other attributes of pulp. The present review comprehensively highlights the microbial xylanolytic system, its mechanism, and its application in pulp bioleaching. With the recent development, the paper delineates the xylanase-aided bleaching effects on pulp, paper, and effluent attributes aimed to reduce bleaching chemical use, AOX formation, and energy use in the pulp refining process.
The influence of coloured-plastic mulching on physical and biochemical characteristics of tomato ... more The influence of coloured-plastic mulching on physical and biochemical characteristics of tomato fruits were investigated. During the study, tomato crop was grown in an open field under five coloured-plastic mulching, one organic mulch and a no-mulch treatment. Harvested tomato fruits were analysed for various physico-chemical post-harvest quality parameters. Results evidenced that sphericity of tomatoe fruits was non-significantly (P<0.05) affected by mulching treatment. The highest fruit sphericity (0.96) was observed under yellow mulch followed by black (0.95). Likewise, average fruit weight (57.59 g) and lycopene content (2.99 mg/100 g) was found highest under red mulch. The highest TSS content (4.97) were reported in organic mulch followed by silver (4.90), while ascorbic acid content was highest under white mulch (32.7 mg/100 g) followed by organic mulch (30.9 mg/100g). Under black mulch, the highest levels of phenolic content (59.0 μg GAE/100 g) as well as antioxidant acti...
Efficacy of low‐cost inorganic phase change material (PCM) in improving storage conditions of on‐... more Efficacy of low‐cost inorganic phase change material (PCM) in improving storage conditions of on‐farm storage chamber was investigated. Before fabrication, thermal analysis of chamber was conducted using ANSYS (2021 R2). Results indicated that PCM proved its potentiality to maintain inside temperature. After thermal analysis, prototype of chamber was fabricated with outer and inner dimensions as 450 mm× 360 mm × 360 mm and 330 mm × 250 mm × 250 mm, respectively. PCM requirement, determined through one‐dimensional heat transfer analysis, was found as 2.41 kg. Subsequently, low‐cost, inorganic PCM was prepared from inorganic salt of Na2SO4∙NaCl∙10H2O in proportion of 37:16:47 and packed in pouches. On‐farm experiments were conducted to evaluate efficacy of experimental PCM under three cases, no‐PCM, with‐PCM no‐load, and with‐PCM full‐load. In third case, 14 kg vegetables were kept inside chamber as well as same quantity was kept outside the chamber. Results evidenced that PCM improve...
Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds i... more Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds in the effluent, the pulp and paper industries are trying to alter the bleaching process to limit the use of chlorine compounds and comply with regulatory, environmental, and market demands. With progress in biotechnology, enzyme technologies can effectively pre-treat lignocellulosic biomass in the pulp and paper making process. Usually, these enzymatic processes reduce the environmental impact of traditional pulp and paper-making processes, lower the overall production cost, and enhance product quality. Microbial xylanases are the potential bio-bleaching candidate due to their renewable, mild operating, highly specific, and eco-friendly nature. Xylanase enhances the efficacy of the bleaching process by breaking the β-1, 4-glycosidic backbone of the re-precipitated xylan network and removing the trapped lignin from the pulp fibers. Xylanolytic action positively influences the kappa number...
Modernization of the agricultural production system led to a significant increase in annual food ... more Modernization of the agricultural production system led to a significant increase in annual food production intended to meet the ever-growing consumer demand. In many countries, most of the food grains produced is stored for contingency and regular supply. These stored grains, in general, are directly or indirectly infested by insects, resulting in severe grain damages and storage losses, thus, causing a threat to food safety and security. Although a variety of insect management options, such as physical, mechanical, biological, and chemical methods, are available, fumigation has been practiced for decades in storage. However, opportunities for fumigation are narrowing after the phase-out of methyl bromide. Besides, safe food and health concerns paved the path for green chemistry and non-chemical management practices. This review includes the list of stored-grain insects and their detection methods. The different management strategies such as the modern storage structures (hermetic ...
Drought is a major abiotic stress that affects crop productivity. Endophytic bacteria have been f... more Drought is a major abiotic stress that affects crop productivity. Endophytic bacteria have been found to alleviate the adverse effects of drought on plants. In the present study, we evaluated the effects of two endophytic bacteria Shewanella putrefaciens strain MCL‐1 and Cronobacter dublinensis strain MKS‐1 on pearl millet (Pennisetum glaucum (L.) R. Br.) under drought stress conditions. Pearl millet plants were grown under three water levels: field capacity (FC), mild drought stress (MD), and severe drought stress (SD). The effects of inoculation on plant growth, physiological attributes, phytohormone content, and drought stress‐responsive genes were assessed. The inoculation of pearl millet seeds with endophytes significantly improved shoot and root dry weight and root architecture of plants grown under FC and drought stress conditions. There was a significant increase in relative water content and proline accumulation in the inoculated plants. Among the phytohormones analyzed, th...
Background: The intended research was carried out with an aim to evaluate the differences in heal... more Background: The intended research was carried out with an aim to evaluate the differences in health promoting bioactive compounds in cherry tomato cv. Nagmoti among the different growing conditions. Methods: Cherry tomato cv. Nagmoti were grown under different conditions as per standard agronomic practices and harvested fruits were were analyzed for physical, biochemical and postharvest quality parameters. Result: About 1.63-fold variation in total carotenoid and 1.39-fold variation in lycopene content was recorded among the different growing structures. Highest titratable acidity (0.118%) and total phenolic content (µg GAE/100g FW) was found in the shade net structures. The highest antioxidant activity was recorded in insect-proof net house (15.45 µmol trolox equiv. g-1) while the least was found in open field (12.04 µmol trolox equiv. g-1) condition. Walking tunnel followed by shade net and insect-proof net house was found best for the better accumulation of functional parameters.
International Journal of Current Microbiology and Applied Sciences, 2017
Cowpea (Vigna unguiculata L. Walp.), one of the important pulse crop grown globally, plays a vita... more Cowpea (Vigna unguiculata L. Walp.), one of the important pulse crop grown globally, plays a vital role in the livelihood of many people dwelling in developing world (FAO, 2002; El Naim and Jabereldar, 2010). In India, it is cultivated in most of the country’s regions and utilized for in the form of grain and leafy vegetables, pulses, green manure and green fodder. Beside this, the dried grain of cowpea is also used in several different food preparations. Cowpea seeds are rich in protein and carbohydrate content with high nutritive value and palatability (Whitebread and Lawrence, 2006). Protein content of cowpea leaves range from 27 to 43% and protein concentration of the dry grain range from 21 to 33% (Abudulai et al., 2016). Cowpea is also an important component of the conventional cropping systems because of its ability to fix atmospheric nitrogen and improvement in the soil fertility. It is well suited to dry and arid conditions because of its adaptive capacity to various stress...
An investigation was conducted to evaluate the potential of antagonistic cyanobacteria/bacterial ... more An investigation was conducted to evaluate the potential of antagonistic cyanobacteria/bacterial cultures amended compost and compost tea preparations for suppressing diseases caused by plant pathogenic fungi Fusarium oxysporum, Pythium debaryanum, Pythium aphanidermatum and Rhizoctonia solani in tomato. Two types of microbe-fortified composts and the compost tea preparations, along with the recommended biological control (Trichoderma formulation) and chemical control (Thiram-Carbendazim), were
Nordic Pulp & Paper Research Journal, Apr 12, 2023
Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds i... more Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds in the effluent, the pulp and paper industries are trying to alter the bleaching process to limit the use of chlorine compounds and comply with regulatory, environmental, and market demands. With progress in biotechnology, enzyme technologies can effectively pre-treat lignocellulosic biomass in the pulp and paper making process. Usually, these enzymatic processes reduce the environmental impact of traditional pulp and paper-making processes, lower the overall production cost, and enhance product quality. Microbial xylanases are the potential bio-bleaching candidate due to their renewable, mild operating, highly specific, and eco-friendly nature. Xylanase enhances the efficacy of the bleaching process by breaking the β-1, 4-glycosidic backbone of the re-precipitated xylan network and removing the trapped lignin from the pulp fibers. Xylanolytic action positively influences the kappa number, hexenuronic acid, chromophore compounds release, pulp crystallinity, morphology and many other attributes of pulp. The present review comprehensively highlights the microbial xylanolytic system, its mechanism, and its application in pulp bioleaching. With the recent development, the paper delineates the xylanase-aided bleaching effects on pulp, paper, and effluent attributes aimed to reduce bleaching chemical use, AOX formation, and energy use in the pulp refining process.
The influence of coloured-plastic mulching on physical and biochemical characteristics of tomato ... more The influence of coloured-plastic mulching on physical and biochemical characteristics of tomato fruits were investigated. During the study, tomato crop was grown in an open field under five coloured-plastic mulching, one organic mulch and a no-mulch treatment. Harvested tomato fruits were analysed for various physico-chemical post-harvest quality parameters. Results evidenced that sphericity of tomatoe fruits was non-significantly (P<0.05) affected by mulching treatment. The highest fruit sphericity (0.96) was observed under yellow mulch followed by black (0.95). Likewise, average fruit weight (57.59 g) and lycopene content (2.99 mg/100 g) was found highest under red mulch. The highest TSS content (4.97) were reported in organic mulch followed by silver (4.90), while ascorbic acid content was highest under white mulch (32.7 mg/100 g) followed by organic mulch (30.9 mg/100g). Under black mulch, the highest levels of phenolic content (59.0 μg GAE/100 g) as well as antioxidant acti...
Efficacy of low‐cost inorganic phase change material (PCM) in improving storage conditions of on‐... more Efficacy of low‐cost inorganic phase change material (PCM) in improving storage conditions of on‐farm storage chamber was investigated. Before fabrication, thermal analysis of chamber was conducted using ANSYS (2021 R2). Results indicated that PCM proved its potentiality to maintain inside temperature. After thermal analysis, prototype of chamber was fabricated with outer and inner dimensions as 450 mm× 360 mm × 360 mm and 330 mm × 250 mm × 250 mm, respectively. PCM requirement, determined through one‐dimensional heat transfer analysis, was found as 2.41 kg. Subsequently, low‐cost, inorganic PCM was prepared from inorganic salt of Na2SO4∙NaCl∙10H2O in proportion of 37:16:47 and packed in pouches. On‐farm experiments were conducted to evaluate efficacy of experimental PCM under three cases, no‐PCM, with‐PCM no‐load, and with‐PCM full‐load. In third case, 14 kg vegetables were kept inside chamber as well as same quantity was kept outside the chamber. Results evidenced that PCM improve...
Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds i... more Due to discharge of hazardous organochlorine compounds and absorbable organic halogen compounds in the effluent, the pulp and paper industries are trying to alter the bleaching process to limit the use of chlorine compounds and comply with regulatory, environmental, and market demands. With progress in biotechnology, enzyme technologies can effectively pre-treat lignocellulosic biomass in the pulp and paper making process. Usually, these enzymatic processes reduce the environmental impact of traditional pulp and paper-making processes, lower the overall production cost, and enhance product quality. Microbial xylanases are the potential bio-bleaching candidate due to their renewable, mild operating, highly specific, and eco-friendly nature. Xylanase enhances the efficacy of the bleaching process by breaking the β-1, 4-glycosidic backbone of the re-precipitated xylan network and removing the trapped lignin from the pulp fibers. Xylanolytic action positively influences the kappa number...
Modernization of the agricultural production system led to a significant increase in annual food ... more Modernization of the agricultural production system led to a significant increase in annual food production intended to meet the ever-growing consumer demand. In many countries, most of the food grains produced is stored for contingency and regular supply. These stored grains, in general, are directly or indirectly infested by insects, resulting in severe grain damages and storage losses, thus, causing a threat to food safety and security. Although a variety of insect management options, such as physical, mechanical, biological, and chemical methods, are available, fumigation has been practiced for decades in storage. However, opportunities for fumigation are narrowing after the phase-out of methyl bromide. Besides, safe food and health concerns paved the path for green chemistry and non-chemical management practices. This review includes the list of stored-grain insects and their detection methods. The different management strategies such as the modern storage structures (hermetic ...
Drought is a major abiotic stress that affects crop productivity. Endophytic bacteria have been f... more Drought is a major abiotic stress that affects crop productivity. Endophytic bacteria have been found to alleviate the adverse effects of drought on plants. In the present study, we evaluated the effects of two endophytic bacteria Shewanella putrefaciens strain MCL‐1 and Cronobacter dublinensis strain MKS‐1 on pearl millet (Pennisetum glaucum (L.) R. Br.) under drought stress conditions. Pearl millet plants were grown under three water levels: field capacity (FC), mild drought stress (MD), and severe drought stress (SD). The effects of inoculation on plant growth, physiological attributes, phytohormone content, and drought stress‐responsive genes were assessed. The inoculation of pearl millet seeds with endophytes significantly improved shoot and root dry weight and root architecture of plants grown under FC and drought stress conditions. There was a significant increase in relative water content and proline accumulation in the inoculated plants. Among the phytohormones analyzed, th...
Background: The intended research was carried out with an aim to evaluate the differences in heal... more Background: The intended research was carried out with an aim to evaluate the differences in health promoting bioactive compounds in cherry tomato cv. Nagmoti among the different growing conditions. Methods: Cherry tomato cv. Nagmoti were grown under different conditions as per standard agronomic practices and harvested fruits were were analyzed for physical, biochemical and postharvest quality parameters. Result: About 1.63-fold variation in total carotenoid and 1.39-fold variation in lycopene content was recorded among the different growing structures. Highest titratable acidity (0.118%) and total phenolic content (µg GAE/100g FW) was found in the shade net structures. The highest antioxidant activity was recorded in insect-proof net house (15.45 µmol trolox equiv. g-1) while the least was found in open field (12.04 µmol trolox equiv. g-1) condition. Walking tunnel followed by shade net and insect-proof net house was found best for the better accumulation of functional parameters.
International Journal of Current Microbiology and Applied Sciences, 2017
Cowpea (Vigna unguiculata L. Walp.), one of the important pulse crop grown globally, plays a vita... more Cowpea (Vigna unguiculata L. Walp.), one of the important pulse crop grown globally, plays a vital role in the livelihood of many people dwelling in developing world (FAO, 2002; El Naim and Jabereldar, 2010). In India, it is cultivated in most of the country’s regions and utilized for in the form of grain and leafy vegetables, pulses, green manure and green fodder. Beside this, the dried grain of cowpea is also used in several different food preparations. Cowpea seeds are rich in protein and carbohydrate content with high nutritive value and palatability (Whitebread and Lawrence, 2006). Protein content of cowpea leaves range from 27 to 43% and protein concentration of the dry grain range from 21 to 33% (Abudulai et al., 2016). Cowpea is also an important component of the conventional cropping systems because of its ability to fix atmospheric nitrogen and improvement in the soil fertility. It is well suited to dry and arid conditions because of its adaptive capacity to various stress...
An investigation was conducted to evaluate the potential of antagonistic cyanobacteria/bacterial ... more An investigation was conducted to evaluate the potential of antagonistic cyanobacteria/bacterial cultures amended compost and compost tea preparations for suppressing diseases caused by plant pathogenic fungi Fusarium oxysporum, Pythium debaryanum, Pythium aphanidermatum and Rhizoctonia solani in tomato. Two types of microbe-fortified composts and the compost tea preparations, along with the recommended biological control (Trichoderma formulation) and chemical control (Thiram-Carbendazim), were
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