Research Journal of Chemistry and Environment最新文献_第7页

Synthesis and Biological evalution of heterocyclic oxazine-2-carbonothioyl)quinazolin-4(3H)-one and oxazine-2(3H)-carbothioamide derivatives 杂环恶嗪-2-羰基)喹唑啉-4(3H)- 1和恶嗪-2(3H)-碳硫酰胺衍生物的合成及生物学评价

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce060071

Ram Prakash Tiwari, Krishna Srivastava, Abhishek Srivastava, Shailesh Kumar Mishra, Amit Tripathi

引用次数: 0

A panacea for environmental pollution: A review on role of biosurfactants in bioremediation 环境污染的灵丹妙药——生物表面活性剂在生物修复中的作用综述

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce1220130

Arun Dhanasekaran, Krishnan Kannabiran

{"title":"A panacea for environmental pollution: A review on role of biosurfactants in bioremediation","authors":"Arun Dhanasekaran, Krishnan Kannabiran","doi":"10.25303/2711rjce1220130","DOIUrl":"https://doi.org/10.25303/2711rjce1220130","url":null,"abstract":"Environmental contamination is growing on daily basis, even though numerous corrective measures have been in practice but still it remains to be a major concern for protecting natural environment, ecosystem and well-being of living systems. Bio products and surface active substances derived from microorganisms and plants are having multiple roles in the environmental protection and cleaning. The amphiphilicity of biosurfactants (BS) causes hydrophilic and hydrophobic regions to come into contact with one another, changing the interfacial and surface tension between them. This phenomenon makes the recalcitrant pollutants more bioavailable and helps the microorganisms to degrade them easily. Additionally, the non-toxic, biodegradable and pH and temperature tolerance of biosurfactants make them better candidates for bioremediation. BS including rhamnolipids, surfactins, saponins and sophorolipids are extensively used for several environmental applications. BS are also used in various nanotechnological applications. BS mediated nano materials and agents are finding enhanced environmental applications than nanoparticles/ materials. This review highlights the numerous environmental issues addressed by using various biosurfactants as well as the methods and mechanisms adopted for the effective degradation and removal of hazardous pollutants.","PeriodicalId":21012,"journal":{"name":"Research Journal of Chemistry and Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135766193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extraction of Ferulic acid from beetroot and tea leaves and its optimization 甜菜根和茶叶中阿魏酸的提取及工艺优化

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce013023

A. Keerthana, P. Mithila, S. Gomathi, Manian Rameshpathy

{"title":"Extraction of Ferulic acid from beetroot and tea leaves and its optimization","authors":"A. Keerthana, P. Mithila, S. Gomathi, Manian Rameshpathy","doi":"10.25303/2711rjce013023","DOIUrl":"https://doi.org/10.25303/2711rjce013023","url":null,"abstract":"Ferulic acid (FA), a phenolic compound widely distributed in various plant sources, has shown promising antibacterial and anti-inflammatory properties. In this work, we extracted ferulic acid from beetroot and tea leaves by alkaline hydrolysis method, in which the ferulic acid from beetroot is more prominent than ferulic acid from tea leaves. Antimicrobial and anti-inflammatory activity tests were performed to check the activity of ferulic acid. It was observed that beetroot has high antimicrobial activity and anti-inflammatory activity than tea leaves. Additionally, we focused on the optimization of ferulic acid extraction from beetroot using three different methods: one factor at a time, Plackett-Burman design and Response surface methodology. Initially, one factor at a time approach was utilized to evaluate the effects of individual factors such as substrate concentration, pH, temperature, agitation speed and incubation period on ferulic acid yield. Subsequently, Plackett-Burman design was employed to screen the significant factors influencing ferulic acid extraction and it was found that substrate concentration, agitation speed and temperature efficiency influence the yield of ferulic acid. Finally, Response surface methodology (RSM) was employed to further optimize the extraction process and determine the optimal conditions for maximum ferulic acid yield. The results obtained from the optimization studies indicated that 2g substrate concentration, 100 agitation speed and 30 ◦C to 37 ◦C temperature significantly influenced the yield of ferulic acid from beetroot. The RSM analysis provided an optimized set of extraction parameters that maximized the ferulic acid yield.","PeriodicalId":21012,"journal":{"name":"Research Journal of Chemistry and Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135766194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Palladium acetate as Catalyst on the Synthesis of Novel Isoxazole Derivatives incorporating Carbazole Moiety 醋酸钯催化合成含咔唑基团的新型异恶唑衍生物的影响

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce024034

Rao Ch. Visweswara, Ramanaiah M., Lakshman Shaik

引用次数: 0

Exploring the experimental and theoretical aspects of 2-[2-(diphenylmethylidene)hydrazine]-N-methyl-N-phenylhydrazine-1-carbothioamide 探索2-[2-(二苯基甲基)肼]- n -甲基- n -苯基肼-1-碳硫酰胺的实验和理论方面

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce082096

K.G. Sangeetha, K.K. Aravindakshan

引用次数: 0

Distillery Plant Upflow Anaerobic Sludge Blanket Reactor comparision of Energy regime in Mesophilic and Thermophilic conditions 酿酒厂上流式厌氧污泥毯式反应器在中温和嗜热条件下能量状态的比较

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce035044

A.B. Saner, A.K. Mungray

{"title":"Distillery Plant Upflow Anaerobic Sludge Blanket Reactor comparision of Energy regime in Mesophilic and Thermophilic conditions","authors":"A.B. Saner, A.K. Mungray","doi":"10.25303/2711rjce035044","DOIUrl":"https://doi.org/10.25303/2711rjce035044","url":null,"abstract":"In this study, comparison of energy regime analysis of mesophilic and thermophilic condition upflow anaerobic sludge blanket (UASB) reactor treating distillery effluent is studied. Percentage COD reduction in thermophilic condition was more by 6.96% than mesophilic condition due to which biogas production increased by 0.1 m3/kg COD removed. In thermophilic temperature condition, methenogenesis was more than acidification than in mesophilic temperature condition; effluent VFA concentration in mesophilic condition was more in thermophilic condition. Stability of thermophilic reactor was more than mesophilic reactor from VFA/ Alkalinity ratio. Waste water treatment plant consumes 2.10 kWh/m3 total energy which comprises of electrical, mechanical and manual energy in mesophilic temperature condition. Input given in the form of electrical energy was 2.07 kWh/m3 and energy recovered in the form of biogas was 185 kWh/m3. Total energy input in thermophilic temperature condition was 1.82 kWh/ m3 and biogas recovery was 211 kWh/m3 in the form of energy. Net saving in energy input was 0.28 kWh/m3 (12.98%) and biogas production increased by 25.9 kWh/m3 (14%) in the form of energy in thermophic temperature condition. Treatment of distillery wastewater in thermophilic temperature condition can be a good option as compared to mesophilic temperature conditions considering the aspect of energy and it seems feasible due to the availability of elevated temperature of the feed for UASB.","PeriodicalId":21012,"journal":{"name":"Research Journal of Chemistry and Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135766208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An overview on spray pyrolysis deposition of metal oxide thin films 喷雾热解沉积金属氧化物薄膜的研究进展

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce1310141

Ho Soonmin, Ahmed Naser

引用次数: 0

Invasive Alien Plant Species Assessment in Semi-Arid Ecosystems: A Case Study from Southern Haryana, India 半干旱生态系统外来入侵植物物种评估:以印度哈里亚纳邦南部为例

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce051059

Harish Punia, Somveer Jakhar

{"title":"Invasive Alien Plant Species Assessment in Semi-Arid Ecosystems: A Case Study from Southern Haryana, India","authors":"Harish Punia, Somveer Jakhar","doi":"10.25303/2711rjce051059","DOIUrl":"https://doi.org/10.25303/2711rjce051059","url":null,"abstract":"Forests of Southern Haryana are incredibly rich in medicinally important plant species but anthropogenic activities and invasive alien plant species are putting a huge stress on these forests. In order to comprehend the ecology of invasive alien plant species, the current study was carried out in the semi-arid forests of Southern Haryana districts, namely Charkhi Dadri and Mahendergarh. During the study, different analytical parameters were calculated such as density(D), basal area (B.A) and importance value index(IVI) along with different diversity indices such as Shannon-weiner index(H'), Simpson index(CD), Pielou index(d) and Margalef index(E). A total of 19 alien plants were recorded with family Asteraceae dominating with 5 species followed by family Solanaceae and Malvaceae. Some of the alien plants were turned out as deadly invasive such as Parthenium hysterophorus, Prosopis juliflora, Chenopodium murale and Croton bonplandianus with high value of IVI, affecting the survival and growth of important native plant species. Thus, the present study is carried out in the field of phytosociology in forests of Southern Haryana. Appropriate strategies must be implemented in this direction to retain the natural ecology of the area.","PeriodicalId":21012,"journal":{"name":"Research Journal of Chemistry and Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135766191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green Synthesis of CdS Nanoparticles and their Potential Application towards Adsorption of Lead and Cadmium ions CdS纳米颗粒的绿色合成及其在吸附铅和镉离子方面的潜在应用

Research Journal of Chemistry and Environment Pub Date : 2023-10-15 DOI: 10.25303/2711rjce072081

Elakkiya G. Tamil, R. Chandrasekhar, G. Sundararajan

引用次数: 0

Synthesis and Characterization of Cobalt- Zinc Oxide Nanoparticles via Microwave assisted Polyol Method 微波辅助多元醇法制备氧化钴锌纳米颗粒及表征

Research Journal of Chemistry and Environment Pub Date : 2023-09-15 DOI: 10.25303/2710rjce021026

Kumar V.G. Viju, P. Sreeshma, V.G. Vidya

{"title":"Synthesis and Characterization of Cobalt- Zinc Oxide Nanoparticles via Microwave assisted Polyol Method","authors":"Kumar V.G. Viju, P. Sreeshma, V.G. Vidya","doi":"10.25303/2710rjce021026","DOIUrl":"https://doi.org/10.25303/2710rjce021026","url":null,"abstract":"This work involves the synthesis of cobalt zinc oxide nanoparticles using a simple green method and their characterization using various techniques. Green synthesis is carried out using polyol medium and microwave heating. Polyol medium minimizes the use of chemicals while microwaves provided an energy efficient method for heating. Ethylene glycol is used as solvent along with polyvinylpyrrolidone and hydrazinium hydroxide. Domestic microwave oven is used as source for microwaves. Nanoparticles collected after washing are calcined at three different temperatures: 773 K, 973K, 1173 K. They are characterized by using IR spectroscopy, X ray Diffraction, Energy Dispersive Spectroscopy and Transmission Electron Microscopy. EDS study confirmed composition and empirical formula of the samples calcined at different temperatures. XRD data included peaks for zinc oxide and cobalt oxide at characteristic 2θ values and calculated crystallite size as 32.07 nm at 773 K, 40.33nm at 973K and 56.42 at 1173 K. IR studies confirmed the formation of Zn-O, Co-O bonds and TEM images confirmed homogeneous size distribution. These nanoparticles are suitable for catalytic and antibacterial applications.","PeriodicalId":21012,"journal":{"name":"Research Journal of Chemistry and Environment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0