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Görüşük EM, Lalikoglu M, Aşçı YS, Bener M, Bekdeşer B, Apak R. Novel tributyl phosphate-based deep eutectic solvent: Application in microwave assisted extraction of carotenoids. Food Chem 2024; 459:140418. [PMID: 39024868 DOI: 10.1016/j.foodchem.2024.140418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/25/2024] [Accepted: 07/09/2024] [Indexed: 07/20/2024]
Abstract
A contribution to the use of deep eutectic solvents (DES) and microwave-assisted extraction (MAE) was made for bioactive compounds recovery, especially those with lipophilic character, from tomato and carrot samples rich in carotenoids. For the first time, a novel deep eutectic solvent was synthesized, comprising tributyl phosphate (TBP) as a hydrogen bond acceptor and acetic acid (AcOH) as a hydrogen bond donor. The total antioxidant capacity (TAC) of tomato and carrot extracts obtained by MAE, in which optimization of operational parameters and modeling were made with the use of Box-Behnken design of the response surface methodology (RSM), was evaluated using the Cupric Reducing Antioxidant Capacity (CUPRAC) method. For the highest TAC, operational parameters that best suit the MAE procedure were set at 80 °C, 35 min, and 25 mL/2.0 g. The TAC values of extracts obtained by MAE using TBP:AcOH, 1:2 (mol/mol) were examined against those of extracts acquired by classical solvent extraction using a mixture of hexane, ethanol and acetone (H:E:A, 2:1:1 (v/v/v)) mixture. TAC of extracts in DES varied between 5.10 and 0.71 lycopene equivalents (mmol LYC kg-1). The highest extraction yield comparable to conventional organic solvents was obtained with TBP:AcOH (1:2). It was observed that, in addition to lipophilic antioxidants, some hydrophilic antioxidant compounds were partially extracted with the proposed DES. Moreover, the extracted antioxidant compounds were identified and quantified by HPLC analysis. The proposed DES and MAE process will find potential application for hydrophobic antioxidant extraction from tomatoes and carrots on an industrial scale after further studies.
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Affiliation(s)
- Emine Münevver Görüşük
- Institute of Graduate Studies and Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, 34320, Istanbul, Türkiye
| | - Melisa Lalikoglu
- Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye
| | - Yavuz Selim Aşçı
- Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye
| | - Mustafa Bener
- Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye
| | - Burcu Bekdeşer
- Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Avcilar 34320, Istanbul, Türkiye.
| | - Reşat Apak
- Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Avcilar 34320, Istanbul, Türkiye; Turkish Academy of Sciences (TUBA), 06690 Çankaya, Ankara, Turkey.
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El Hanafi N, Zaabar A, Aoudjit F, Lounici H. Decolorization enhancement of basic fuchsin by UV/H 2O 2 process: optimization and modeling using Box Behnken design. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2024; 59:251-259. [PMID: 38903027 DOI: 10.1080/10934529.2024.2369432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/13/2024] [Indexed: 06/22/2024]
Abstract
The present work deals with the optimization of basic fuchsin dye removal from an aqueous solution using the ultraviolet UV/H2O2 process. Response Surface Modeling (RSM) based on Box-Behnken experimental design (BBD) was applied as a tool for the optimization of operating conditions such as initial dye concentration (10-50 ppm), hydrogen peroxide dosage (H2O2) (10-20 mM/L) and irradiation time (60-180 min), at pH = 7.4 under ultra-violet irradiation (254 nm and 25 W intensity). Chemical oxygen demand (COD abatement) was used as a response variable. The Box-Behnken Design can be employed to develop a mathematical model for predicting UV/H2O2 performance for COD abatement. COD abatement is sensitive to the concentration of hydrogen peroxide and irradiation time. Statistical analyses indicate a high correlation between observed and predicted values (R2 > 0.98). In the BBD predictions, the optimal conditions in the UV/H2O2 process for removing 99.3% of COD were found to be low levels of pollutant concentration (10 ppm), a high concentration of hydrogen peroxide dosage (20 mM/L), and an irradiation time of 80 min.
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Affiliation(s)
- Nawel El Hanafi
- Laboratoire des Matériaux et Développement Durable (MDD), Faculté des Sciences et des Sciences Appliquées, Université de Bouira, Bouira, Algeria
| | - Aida Zaabar
- Laboratoire des Matériaux et Développement Durable (MDD), Faculté des Sciences et des Sciences Appliquées, Université de Bouira, Bouira, Algeria
- Laboratoire d'Electrochimie, Corrosion et de Valorisation Energétique (LECVE), Faculté de Technologie, Université de Bejaia, Bejaia, Algeria
| | - Farid Aoudjit
- Laboratoire des Matériaux et Développement Durable (MDD), Faculté des Sciences et des Sciences Appliquées, Université de Bouira, Bouira, Algeria
| | - Hakim Lounici
- Laboratoire des Matériaux et Développement Durable (MDD), Faculté des Sciences et des Sciences Appliquées, Université de Bouira, Bouira, Algeria
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Dümenci NA, Temel FA, Turan NG. Role of different natural materials in reducing nitrogen loss during industrial sludge composting: Modelling and optimization. BIORESOURCE TECHNOLOGY 2023; 385:129464. [PMID: 37429554 DOI: 10.1016/j.biortech.2023.129464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023]
Abstract
In this study, the effects of pumice, expanded perlite, and expanded vermiculite on nitrogen loss were examined for industrial sludge composting using the Box-Behnken experimental design. The independent factors and their levels were selected as amendment type, amendment ratio, and aeration rate, and codded as x1, x2, and x3 at 3 levels (low, center, and high). The statistical significance of independent variables and their interactions were determined at 95% confidence limits by Analysis of Variance. The quadratic polynomial regression equation produced to predict the responses was solved and the optimum values of the variables were predicted by analyzing the three-dimensional response surfaces plots. The optimum conditions for minimum nitrogen loss by the regression model were as pumice of amendment type, 40% of amendment ratio, and 6 L/min of aeration rate. In this study, it was observed that time-consuming and laborious laboratory work can be minimized with the Box-Behnken experimental design.
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Affiliation(s)
- Nurdan Aycan Dümenci
- Department of Environmental Engineering, Faculty of Engineering, Ondokuz Mayıs University, Samsun 55200, Turkey
| | - Fulya Aydın Temel
- Department of Industrial Engineering, Faculty of Engineering, Giresun University, Giresun 28200, Turkey.
| | - Nurdan Gamze Turan
- Department of Environmental Engineering, Faculty of Engineering, Ondokuz Mayıs University, Samsun 55200, Turkey
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4
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Yazici Guvenc S, Ozen I, Binici M, Yildirim D, Can-Güven E, Varank G. Combination of zero-valent aluminum-acid system and electrochemically activated persulfate oxidation for biologically pre-treated leachate nanofiltration concentrate treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 320:121074. [PMID: 36641068 DOI: 10.1016/j.envpol.2023.121074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/24/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
This study investigated the performance of combined zero-valent aluminum (ZVAl) and electrochemically activated persulfate (PS) oxidation for the leachate nanofiltration concentrate (NFC) treatment. Firstly, operating parameters in the ZVAl procedure were optimized and under the optimum conditions (ZVAl dose 1 g/L, initial pH 1.5) the removal efficiency of the chemical oxygen demand (COD), UV254, and color were 22.39%, 29.03%, and 48.26%, respectively. Secondly, the effect of various anode types (Ti/RuO2, Ti/IrO2, and Ti/SnO2) within the electrooxidation (EO) process was evaluated. The Ti/RuO2 anode was found to be the most effective one in terms of pollutant removal efficiencies and operation cost. The efficiency of single, binary, and hybrid processes was evaluated by control experiments and the results were ranked as PS < ZVAl < ZVAl + PS < EO < EO + PS < EO + ZVAl < EO + ZVAl + PS. In the following part of the study, the Box-Behnken design was preferred to optimize the operating parameters of the hybrid EO + ZVAl + PS process. The COD, UV254, and color removal efficiencies under optimum conditions (4.88 mM PS dose, 1.6 A current applied, and 120 min reaction time) were 62.1%, 75.2%, and 99.9%, respectively. The estimated and experimentally obtained data were close to each other. The pollutant removal efficiencies increased in parallel with the current density and reaction time; however, the effect of the PS dose remained at a negligible level. The obtained results indicate the effectiveness of the hybrid EO + ZVAl + PS process for the treatment of leachate nanofiltration concentrate under optimized conditions.
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Affiliation(s)
- Senem Yazici Guvenc
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey
| | - Irem Ozen
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey
| | - Miray Binici
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey
| | - Doga Yildirim
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey
| | - Emine Can-Güven
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey.
| | - Gamze Varank
- Yıldız Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220, Istanbul, Turkey
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Pyrka I, Mantzouridou FT, Nenadis N. Optimization of olive leaves' thin layer, intermittent near-infrared-drying. INNOV FOOD SCI EMERG 2023. [DOI: 10.1016/j.ifset.2022.103264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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6
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Chen K, Sun Y, Fan J, Gu Y. The dewatering performance and cracking-flocculation-skeleton mechanism of bioleaching-coal fly ash combined process for sewage sludge. CHEMOSPHERE 2022; 307:135994. [PMID: 35973485 DOI: 10.1016/j.chemosphere.2022.135994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/27/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
High water content in sludge will affect the transportation and subsequent disposal of sludge. Bioleaching is a biological sludge conditioning technology, which can effectively improve the dewatering performance of sludge and reduce the content of heavy metals in sludge. Coal fly ash, as a skeleton builder, can also improve the dewatering performance of sludge. In this study, bioleaching combined with coal fly ash (BL-CFA) process was employed to improve sludge dewatering performance. Based on the results of response surface methodology (RSM), the capillary suction time (CST) and water content (WC) of sludge decreased by 52.27% and 38.92%, respectively. The dewatering effect of BL-CFA is superior compared with single process. For extracellular polymeric substances (EPS), the content of protein and polysaccharide in tightly and loosely EPS (TB-EPS and LB-EPS) of sludge decreased after BL-CFA process, while that in soluble EPS (S-EPS) increased. Three-dimensional fluorescence indicated that the weakened fluorescent areas of proteinoid and soluble microbial by-product-like (SMP) organic in LB-EPS and TB-EPS, which is beneficial to the improvement of sludge dewatering performance. Fourier transform infrared (FTIR) spectroscopy showed that the polysaccharides and proteins in the sludge were cleaved and released into the supernatant after BL-CFA process. The variation of particle size revealed that flocculation occurred after adding CFA into acidified sludge, and a supporting structure was formed in the sludge with the assist of CFA through the analysis of the scanning electron microscopy (SEM). Based on the above results, a triple dehydration mechanism was proposed for BL-CFA process, namely, cracking-flocculation-skeleton construction, which endows the combined process with superior sludge dewatering effect and application potential.
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Affiliation(s)
- Kai Chen
- School of Civil Engineering, Southeast University, Nanjing, 210096, China
| | - Yue Sun
- School of Civil Engineering, Southeast University, Nanjing, 210096, China.
| | - Jun Fan
- Nanjing Huachuang Environmental Technology Research Institute Co., Ltd, Nanjing, 210096, China
| | - YingPeng Gu
- School of Civil Engineering, Southeast University, Nanjing, 210096, China
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7
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Preparation of a Phosphate Ion-Selective Electrode Using One-Step Process Optimized with Response Surface Method and its Application in Real Sample Detections. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00750-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Massey IY, Peng T, Danping C, Yang F. Optimization of Biodegradation Characteristics of Sphingopyxis sp. YF1 against Crude Microcystin-LR Using Response Surface Methodology. Toxins (Basel) 2022; 14:toxins14040240. [PMID: 35448849 PMCID: PMC9026303 DOI: 10.3390/toxins14040240] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/20/2022] [Accepted: 03/23/2022] [Indexed: 12/20/2022] Open
Abstract
Sphingopyxis sp. YF1 has proven to be efficient in biodegrading microcystin (MC)-leucine (L) and arginine (R) (MC-LR); however, the optimal environmental factors to biodegrade the toxin have not been investigated. In this study, the biodegrading characteristics of strain YF1 against MC-LR were assessed under diverse environmental factors, including temperature (20, 30 or 40 °C), pH (5, 7 or 9) and MC-LR concentration (1, 3 or 5 µg/mL). Data obtained from the single-factor experiment indicated that MC-LR biodegradation by strain YF1 was temperature-, pH- and MC-LR-concentration-dependent, and the maximal biodegradation rate occurred at 5 µg/mL/h. Proposing Box-Behnken Design in response surface methodology, the influence of the three environmental factors on the biodegradation efficiency of MC-LR using strain YF1 was determined. A 17-run experiment was generated and carried out, including five replications performed at the center point. The ANOVA analysis demonstrated that the model was significant, and the model prediction of MC-LR biodegradation was also validated with the experimental data. The quadratic statistical model was established to predict the interactive effects of the environmental factors on MC-LR biodegradation efficiency and to optimize the controlling parameters. The optimal conditions for MC-LR biodegradation were observed at 30 °C, pH 7 and 3 µg/mL MC-LR, with a biodegradation efficiency of 100% after 60 min. The determination of the optimal environmental factors will help to unveil the detailed biodegradation mechanism of MC-LR by strain YF1 and to apply it into the practice of eliminating MC-LR from the environment.
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Affiliation(s)
- Isaac Yaw Massey
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410017, China;
| | - Tangjian Peng
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421009, China; (T.P.); (C.D.)
| | - Cai Danping
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421009, China; (T.P.); (C.D.)
| | - Fei Yang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410017, China;
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421009, China; (T.P.); (C.D.)
- Laboratory of Ecological Environment and Critical Human Diseases Prevention of Hunan Province, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang 421009, China
- Correspondence: authors:
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9
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Oxidative desulfurization of a model fuel using MoO3 nanoparticles supported on carbon nanotubes catalyst: examine most significance variables, optimization, kinetics and thermodynamics study. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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10
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Wang Z, Zheng X, Wang Y, Lin H, Zhang H. Evaluation of phenanthrene removal from soil washing effluent by activated carbon adsorption using response surface methodology. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Introducing Graphene–Indium Oxide Electrochemical Sensor for Detecting Ethanol in Aqueous Samples with CCD-RSM Optimization. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10020042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
There is significant demand for portable sensors that can deliver selective and sensitive measurement of ethanol on-site. Such sensors have application across many industries, including clinical and forensic work as well as agricultural and environmental analysis. Here, we report a new graphene–indium oxide electrochemical sensor for the determination of ethanol in aqueous samples. Graphene layers were functionalised by anchoring In2O3 to its surface and the developed composite was used as a selective electrochemical sensor for sensing ethanol through cyclic voltammetry. The detection limit of the sensor was 0.068 mol/L and it showed a linear response to increasing ethanol in the environment up to 1.2 mol/L. The most significant parameters involved and their interactions in the response of the sensor and optimization procedures were studied using a four-factor central composite design (CCD) combined with response surface modelling (RSM). The sensor was applied in the detection of ethanol in authentic samples.
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Inyang V, Lokhat D. Parametric Study of the Extraction of Malic Acid Using Emulsion Liquid Membrane (ELM). ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-06395-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Guo J, Wei J, Huang F, Massey IY, Luo J, Yang F. Optimization of microcystin biodegradation by bacterial community YFMCD4 using response surface method. CHEMOSPHERE 2021; 274:129897. [PMID: 33979923 DOI: 10.1016/j.chemosphere.2021.129897] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 09/25/2020] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
The increasing production of microcystin-LR (MC-LR) causing animal and human health issues is found in eutrophic water bodies, marine habitats and desert environments. The health threat posed by MC-LR has led to the establishment of World Health Organization's water guideline value of 1 μg/mL. Combating this has increased the search for cost-effective approach to degrade MC-LR. The study aimed to optimize the MC-degrading environmental factors of bacterial community YFMCD4. Response surface methodology (RSM) was employed to evaluate the influence of varying temperatures, pH and initial MC-LR concentration on the biodegradation efficiency of MC-LR by bacterial community YFMCD4. The optimal MC-LR biodegradation environmental factors were found to be 30 °C, pH 7 and 2 μg/mL initial MC-LR. The biodegradation rate reached 100% after 10 h. YFMCD4 mainly consisted of genera Alacligenes, Sphingobacterium and Pseudomonas using High-throughput pyrosequencing technology. The mlrA gene encoding MlrA enzyme considered most important for MC-LR biodegradation was obtained from YFMCD4. Data demonstrated that the bacterial structure and biodegradation efficiency of YFMCD4 varied with the change of environmental factors including temperature, pH and MC-LR concentrations. RSM is considered a good method to examine the optimal biodegradation environmental conditions for MC-LR. To date, RSM and High-throughput pyrosequencing technology are employed to optimize the biodegradation conditions (30 °C, pH 7 and 2 μg/mL initial MC-LR) and analyze the structure of bacterial community for the first time.
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Affiliation(s)
- Jian Guo
- Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, China.
| | - Jia Wei
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
| | - Feiyu Huang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
| | - Isaac Yaw Massey
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
| | - Jiayou Luo
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
| | - Fei Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang, 421001, China; Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, 410078, China.
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Inyang V, Lokhat D. Butyric Acid Reactive Extraction Using Trioctylamine in 1-Decanol: Response Surface Methodology Parametric Optimization Technique. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-020-05255-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Erihemu, Wang M, Zhang F, Wang D, Zhao M, Cui N, Gao G, Guo J, Zhang Q. Optimization of the process parameters of ultrasound on inhibition of polyphenol oxidase activity in whole potato tuber by response surface methodology. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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16
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Song H, Chung H, Nam K. Response surface modeling with Box-Behnken design for strontium removal from soil by calcium-based solution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 274:116577. [PMID: 33540256 DOI: 10.1016/j.envpol.2021.116577] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/13/2021] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
Owing to its physicochemical similarity to strontium (Sr), calcium (Ca) was tested as a key component of a soil washing solution for Sr-contaminated soil collected near a nuclear power plant. A four-factor, three-level Box-Behnken experimental design combined with response surface modeling was employed to determine the optimal Sr washing condition for Ca-based solution. The Ca concentration (0.1-1 M), liquid-to-soil ratio (5-20), washing time (0.5-2 h), and pH (2.0-7.0) were tested as the independent variables. From the Box-Behnken design, 27 sets of experimental conditions were selected, and a second-order polynomial regression equation was derived. The significance of the independent parameters and interactions was tested by analysis of variance. Ca concentration was found to be the most influential factor. To determine whether the four variables were independent, three-dimensional (3D) response surface plots were established. The optimal washing condition was determined to be as follows: 1 M Ca, L/S ratio of 20, 1 h washing, and pH = 2. Under this condition, the highest Sr removal efficiency (68.2%) was achieved on a soil contaminated with 90.1 mg/kg of Sr. Results from five-step sequential extraction before and after washing showed that 84.0% and 82.9% of exchangeable and carbonate-bound Sr were released, respectively. In addition, more tightly bound Sr, such as Fe/Mn oxides-bound and organic matter-bound Sr, were also removed (86.2% and 64.5% removal, respectively).
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Affiliation(s)
- Hojae Song
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea
| | - Hyeonyong Chung
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea
| | - Kyoungphile Nam
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea.
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17
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Fawzy MA. Biosorption of copper ions from aqueous solution by Codium vermilara: Optimization, kinetic, isotherm and thermodynamic studies. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.07.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Bounouri Y, Berkani M, Zamouche A, Rycerz L. Optimization and modeling of synthesis parameters of neodymium(III) bromide by dry method using full factorial design analysis. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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19
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Bagheban M, Baghdadi M, Mohammadi A, Roozbehnia P. Investigation of the effective factors on the mutagen X formation in drinking water by response surface methodology. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 251:109515. [PMID: 31569020 DOI: 10.1016/j.jenvman.2019.109515] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/17/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Mutagen 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) is known as a potent factor in inducing DNA damage and increasing cancer risk. MX is a chlorination disinfection byproduct that comes from the reaction of humic acids and chlorine in drinking water. The purpose of this study was to evaluate the effects of significant factors (including pH, reaction time, chlorine and the concentration of organic materials (TOC)) and their interactions on the MX formation rate in chlorinated drinking water using Box-Behnken Design (BBD) and response surface method (RSM). For this purpose, the simulation of water chlorination disinfection process was carried out in a laboratory scale. A quadratic model was chosen to determine the mathematical relations between the response and the effective factors. All linear parameters, as well as second-degree components except chlorine, were statistically significant. Also, the interactions of contact time with TOC, free chlorine residual with TOC, and chlorine with pH were also statistically significant. Statistical results showed that the pH had a great effect on the potential of MX formation, and then the factors of TOC, chlorine and contact time were effective, respectively. The percentage of contribution (PC) of each component in the formation of MX. The highest significant percentage of contribution (48.36%) was allocated to the pH. Under the optimum conditions (contact time of 48.38 min, chlorine concentration of 0.79 mg/L, TOC concentration of 0.53 mg/L, and pH of 7.98), minimum value of MX was equal to 28.6.
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Affiliation(s)
- Mahtab Bagheban
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 1417614411, Iran; Reference Laboratory of Water and Wastewater, Tehran Province of Water and Waste Water Company, Tehran, 14155-1595, Iran.
| | - Majid Baghdadi
- School of Environment, College of Engineering, University of Tehran, Tehran, Iran.
| | - Ali Mohammadi
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 1417614411, Iran; Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Parisa Roozbehnia
- Reference Laboratory of Water and Wastewater, Tehran Province of Water and Waste Water Company, Tehran, 14155-1595, Iran.
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Guermech I, Lassoued MA, Abdelhamid A, Sfar S. Development and Assessment of Lipidic Nanoemulsions Containing Sodium Hyaluronate and Indomethacin. AAPS PharmSciTech 2019; 20:330. [PMID: 31677079 DOI: 10.1208/s12249-019-1543-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/18/2019] [Indexed: 11/30/2022] Open
Abstract
The present work attempts to develop and optimize the formula of a lipidic nanoemulsion (NE) containing sodium hyaluronate (HNa) and indomethacin (Ind) as HNa-Ind for enhanced transdermal antiarthritic activity. NEs were prepared by the spontaneous emulsification method and characterized by Fourier-transform infrared (FTIR) spectroscopy. The composition of the optimal formulation was statistically optimized using Box-Behnken experimental design method with three independent factors and was characterized for particle size, polydispersity index, and percent transmittance. The selected formula was tested for its in vitro antioxidant activity and in vivo anti-inflammatory activity. The optimized HNa-Ind NE formula was characterized and displayed a particle size of 12.87 ± 0.032 nm, polydispersity index of 0.606 ± 0.082, and 99.4 ± 0.1 percentage of transmittance. FTIR showed no interaction between HNa and Ind as a physical mixture. In addition, the optimized HNa-Ind NE was able to preserve the antioxidant ability of the two drugs, as evidenced through a 2,2-diphenyl-1-picrylhydrazyl (DPPH) inhibition assay used to assess free radical scavenging ability. The cell viability was increased while the free radical scavenging activity was decreased (94.28% inhibition at higher concentrations compared with vitamin C as a reference with an inhibition of 100%). Moreover, the pharmacological anti-inflammatory potential of the optimized HNa-Ind NE formulation was assessed using an in vivo model. Compared with reference drugs (ibuprofen gel 5%), the remarkable activity of the optimized formulation was established using xylene-induced ear edema in mice model, in which the inflamed region reduced by 92.5% upon treatment. The optimized HNa-Ind NE formulation showed considerably higher skin permeation and drug deposition capability compared with the HNa-Ind solution. HNa-Ind NE was demonstrated to be a successful carrier with enhanced antioxidant and anti-inflammatory potential while showing better skin penetration, thus being a promising vehicle for transdermal drug delivery.
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Enzymatic bioconversion of feather waste with keratinases of Bacillus cereus PCM 2849. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2019. [DOI: 10.2478/pjct-2019-0030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Enzymatic preparation from culture of keratinolytic Bacillus cereus PCM 2849 was applied for hydrolysis of whole chicken feathers, after sulphitolytic pretreatment. This process was optimized using a three-factor Box-Behnken design, where the effect of substrate concentration, sulphite concentration during pretreatment and reaction temperature was evaluated on the release of amino acids. Obtained results revealed the highest impact of reaction temperature, followed by substrate content and sulphite during pretreatment. Optimal process conditions were established, i.e. temperature 44.4°C, feathers 4.7% and treatment with 25.3 mM sulphite. Amino acid composition of the obtained hydrolysate was analyzed. Glutamic acid (9.21 g·kg−1) and proline were dominant, however significant amount of branched-chain amino acids was also observed. The FTIR analysis of residual substrate revealed the cleavage of disulphide bonds in keratin through the presence of thioester residues. The absence of reduced cysteine residues was confirmed, along with minor changes in proportions of keratin substructures.
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Dong Y, Zhou M, Xiang Y, Wan S, Li H, Hou H. Barrier effect of coal bottom ash-based geopolymers on soil contaminated by heavy metals. RSC Adv 2019; 9:28695-28703. [PMID: 35529605 PMCID: PMC9071212 DOI: 10.1039/c9ra05542h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/06/2019] [Indexed: 11/24/2022] Open
Abstract
Coal bottom ash (CBA) was modified on the basis of the engineering problems of low resource utilization of CBA and difficulty in treating HMS through alkali activation to synthesize geopolymers and solidify heavy metal-contaminated soil (HMS). The optimal values of geopolymers were selected through response surface methodology. Their mineral compositions, microstructure, and binding energy were determined through X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy tests, respectively. The stress–strain curve, the leaching concentration and fraction of heavy metals, and the solidifying mechanism for remolded soil were determined through unconfined compressive strength, leaching toxicity, sequential chemical extraction, and infrared (IR) spectroscopy tests, respectively. Based on these experiments, the following conclusions were presented. The optimum ratios of CBA-based geopolymers were n(Si) : n(Al) = 2.666, n(Na) : n(Al) = 0.687, and n(water) : n(binder) = 2.422. The X-ray curves of the geopolymers were obvious hump-like protuberances at diffraction angles of 20–35° and had a dense amorphous structure on the surface. The maximum binding energies of Si 2p and Al 2p decreased to 101.03 and 72.89 eV, respectively. A 3D network polymerized because of strong geopolymerization. The maximum axial stress of the remolded soil was 104.91% higher than that of the undisturbed soil, and the leaching concentration decreased by more than 45.88%. The leaching toxicity met the requirements of standard GB 5085.3-2007. The proportion of the acid-extractable fraction of heavy metals in the remolded soil decreased, whereas the proportion of residual fraction increased. The stretching vibration of Si–O–Si (Al) and the bending vibration of Si–O–Si appeared in the IR spectrum. The soil particles were completely encapsulated by a hardened geopolymer structure, thereby forming a multilayer space-skeleton barrier structure that could greatly improve the mechanical properties. Coal bottom ash (CBA) was modified on the basis of the engineering problems of low resource utilization of CBA and difficulty in treating HMS through alkali activation to synthesize geopolymers and solidify heavy metal-contaminated soil (HMS).![]()
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Affiliation(s)
- Yiqie Dong
- School of Resource and Environmental Sciences, Wuhan University Wuhan China
| | - Min Zhou
- School of Resource and Environmental Sciences, Wuhan University Wuhan China .,Hubei Environmental Remediation Material Engineering Technology Research Center Wuhan China
| | - Yuwei Xiang
- School of Resource and Environmental Sciences, Wuhan University Wuhan China
| | - Sha Wan
- School of Resource and Environmental Sciences, Wuhan University Wuhan China
| | - He Li
- School of Resource and Environmental Sciences, Wuhan University Wuhan China
| | - Haobo Hou
- School of Resource and Environmental Sciences, Wuhan University Wuhan China .,Hubei Environmental Remediation Material Engineering Technology Research Center Wuhan China
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Guo Z, Zhao B, Li H, Miao S, Zheng B. Optimization of ultrasound-microwave synergistic extraction of prebiotic oligosaccharides from sweet potatoes (Ipomoea batatas L.). INNOV FOOD SCI EMERG 2019. [DOI: 10.1016/j.ifset.2019.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Sivashankar R, Thirunavukkarasu A, Nithya R, Kanimozhi J, Sathya AB, Sivasubramanian V. Sequestration of methylene blue dye from aqueous solution by magnetic biocomposite: Three level Box–Behnken experimental design optimization and kinetic studies. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1607382] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Raja Sivashankar
- Department of Chemical Engineering, National Institute of Technology Calicut, Calicut, India
- Department of Chemical Engineering, Hindustan Institute of Technology and Science, Chennai, India
| | | | - Rajarathinam Nithya
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - Jeyaram Kanimozhi
- Department of Biotechnology, Kamaraj College of Engineering and Technology, Virudhunagar, India
| | - Arunachalam Bose Sathya
- Department of Chemical Engineering, National Institute of Technology Calicut, Calicut, India
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25
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Study of effective parameters for the polarization characterization of PEMFCs sensitivity analysis and numerical simulation. KOREAN J CHEM ENG 2018. [DOI: 10.1007/s11814-018-0178-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Yang T, Sheng L, Wang Y, Wyckoff KN, He C, He Q. Characteristics of Cadmium Sorption by Heat-Activated Red Mud in Aqueous Solution. Sci Rep 2018; 8:13558. [PMID: 30202080 PMCID: PMC6131504 DOI: 10.1038/s41598-018-31967-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/30/2018] [Indexed: 11/17/2022] Open
Abstract
Red mud as a waste material is produced in large quantities by the aluminum industry. Heat activation has been used to enhance sorption capacity of red mud for its beneficial reuse as an effective sorbent. In this study, heat-activated red mud (HARM) was investigated for its Cd(II) sorption capacity under various process conditions (Cd concentration, pH and contact time) using response surface methodology (RSM). Analysis with RSM identified pH as the most important process parameter. The positive correlation between higher pH and greater Cd(II) sorption was likely due to: (i) decreased proton competition with Cd(II) for sorption sites at higher pH; (ii) enhanced sorption via ion exchange by monovalent Cd species from hydrolysis at higher pH; and (iii) improved thermodynamics of sorption at higher pH as protons are being released as products. Further analysis indicated the sorption process was thermodynamically favorable with a negative change in Gibbs free energy. Additionally, the sorption process exhibited a positive change in enthalpy, indicative of endothermic nature of sorption; this is consistent with sorption increase at higher temperature. These findings provide needed insight into the mechanisms underlying Cd(II) sorption by HARM for more effective applications of heat-activated red mud as sorbents for Cd(II) removal.
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Affiliation(s)
- Tianxue Yang
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, China.,Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Lianxi Sheng
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, China.
| | - Yongfeng Wang
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Kristen N Wyckoff
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Chunguang He
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, Jilin, China
| | - Qiang He
- Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee, USA. .,Institute for a Secure and Sustainable Environment, University of Tennessee, Knoxville, Tennessee, USA.
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27
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Şahin S, Elhussein E, Bilgin M, Lorenzo JM, Barba FJ, Roohinejad S. Effect of drying method on oleuropein, total phenolic content, flavonoid content, and antioxidant activity of olive (Olea europaea
) leaf. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13604] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Selin Şahin
- Engineering Faculty, Department of Chemical Engineering; Istanbul University; 34320 Avcilar Istanbul Turkey
| | - Elaf Elhussein
- Engineering Faculty, Department of Chemical Engineering; Istanbul University; 34320 Avcilar Istanbul Turkey
| | - Mehmet Bilgin
- Engineering Faculty, Department of Chemical Engineering; Istanbul University; 34320 Avcilar Istanbul Turkey
| | - Jose M. Lorenzo
- Centro Tecnológico de la Carne de Galicia, Adva. Galicia no 4, Parque Tecnológico de Galicia, San Cibrao das Viñas; 32900 Ourense Spain
| | - Francisco J. Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy; Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot; València Spain
| | - Shahin Roohinejad
- Department of Food Science and Nutrition; University of Minnesota; St. Paul Minnesota
- Burn and Wound Healing Research Center, Division of Food and Nutrition; Shiraz University of Medical Sciences; Shiraz Iran
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28
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Xavier-Junior FH, Egito ESTD, Morais ARDV, Alencar EDN, Maciuk A, Vauthier C. Experimental design approach applied to the development of chitosan coated poly(isobutylcyanoacrylate) nanocapsules encapsulating copaiba oil. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.02.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Lu X, Zheng Z, Li H, Cao R, Zheng Y, Yu H, Xiao J, Miao S, Zheng B. Optimization of ultrasonic-microwave assisted extraction of oligosaccharides from lotus (Nelumbo nucifera Gaertn.) seeds. INDUSTRIAL CROPS AND PRODUCTS 2017. [DOI: 10.1016/j.indcrop.2017.05.060] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Nayak AK, Pal A. Green and efficient biosorptive removal of methylene blue by Abelmoschus esculentus seed: Process optimization and multi-variate modeling. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 200:145-159. [PMID: 28577452 DOI: 10.1016/j.jenvman.2017.05.045] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 05/08/2017] [Accepted: 05/14/2017] [Indexed: 06/07/2023]
Abstract
The present work explores, for the first time, the adsorptive removal of methylene blue (MB) dye from aqueous solution using different parts of abundantly available agricultural product, Abelmoschus esculentus (lady's finger), and the processed seed powder (designated as LFSP) was found as the best. The aforesaid biosorbent was characterized using field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR) and pHZPC analyses. The biosorption performance was evaluated using batch studies at 303 K, at varying operating conditions such as solution pH, biosorbent dosage, initial dye concentration and contact time. The pseudo-second order kinetic model was followed during the adsorption, and it was also found that intra-particle diffusion played a prominent role in the rate-controlling step. Langmuir and Temkin isotherms were followed the best, as was evident from the lower % non-linear error values and higher degree of determination coefficients. Thermodynamic investigations revealed that the biosorption processes were spontaneous and endothermic. Using the response surface methodology (RSM), a central composite design was developed, and subsequently applied as an input for the artificial neural network (ANN) approach in order to further analyze the interactive term effects between the significant process parameters, on the maximum biosorption capacity for MB dye removal by LFSP. The non-linear error functions and linear regression coefficients on the RSM model showed its dominance behaviour over ANN model for both data fitting and estimation capabilities. Using the statistical optimization, the maximum uptake capacity was found to be 205.656 mg/g. Experiments were conducted to regenerate the adsorbent and to recover the adsorbed dye using the eluent 0.5 M HCl. Cost analysis showed that, LFSP was 7 times cheaper than commercially available activated carbons.
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Affiliation(s)
- Ashish Kumar Nayak
- Civil Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Anjali Pal
- Civil Engineering Department, Indian Institute of Technology, Kharagpur 721302, West Bengal, India.
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31
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Vinoth Kumar R, Ganesh Moorthy I, Pugazhenthi G. Separation of BSA through FAU-type zeolite ceramic composite membrane formed on tubular ceramic support: Optimization of process parameters by hybrid response surface methodology and biobjective genetic algorithm. Prep Biochem Biotechnol 2017; 47:687-698. [DOI: 10.1080/10826068.2017.1303608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- R. Vinoth Kumar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - I. Ganesh Moorthy
- Department of Biotechnology, Kamaraj College of Engineering and Technology, Virudhunagar, Tamil Nadu, India
| | - G. Pugazhenthi
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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32
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Rewatkar K, Shende DZ, Wasewar KL. Modeling and Optimization of Reactive Extraction of Gallic Acid Using RSM. CHEM ENG COMMUN 2017. [DOI: 10.1080/00986445.2017.1282470] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kalpana Rewatkar
- Department of Chemical Engineering, Advance Separation and Analytical Laboratory, Visvesvaraya National Institute of Technology, Nagpur, India
| | - Diwakar Z. Shende
- Department of Chemical Engineering, Advance Separation and Analytical Laboratory, Visvesvaraya National Institute of Technology, Nagpur, India
| | - Kailas L. Wasewar
- Department of Chemical Engineering, Advance Separation and Analytical Laboratory, Visvesvaraya National Institute of Technology, Nagpur, India
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Modeling of polysaccharide extraction from Gossypium arboreum L. seed using central composite rotatable design. Int J Biol Macromol 2016; 86:857-64. [DOI: 10.1016/j.ijbiomac.2016.01.094] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 01/13/2016] [Accepted: 01/25/2016] [Indexed: 11/22/2022]
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34
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Ding Y, Zheng J, Xia X, Ren T, Kan J. Box–Behnken design for the optimization of nanoscale retrograded starch formation by high-power ultrasonication. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.11.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Kee YL, Mukherjee S, Pariatamby A. Effective remediation of phenol,2,4-bis(1,1-dimethylethyl) and bis(2-ethylhexyl) phthalate in farm effluent using Guar gum--A plant based biopolymer. CHEMOSPHERE 2015; 136:111-117. [PMID: 25966329 DOI: 10.1016/j.chemosphere.2015.04.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 04/07/2015] [Accepted: 04/24/2015] [Indexed: 06/04/2023]
Abstract
This study was carried out to evaluate the efficiency of Guar gum in removing Persistent Organic Pollutants (POPs), viz. phenol,2,4-bis(1,1-dimethylethyl) and bis(2-ethylhexyl) phthalate (DEHP), from farm effluent. The removal efficiency was compared with alum. The results indicated that 4.0 mg L(-1) of Guar gum at pH 7 could remove 99.70% and 99.99% of phenol,2,4-bis(1,1-dimethylethyl) and DEHP, respectively. Box Behnken design was used for optimization of the operating parameters for optimal POPs removal. Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopy studies were conducted on the flocs. SEM micrographs showed numerous void spaces in the flocs produced by Guar gum as opposed to those produced by alum. This indicated why Guar gum was more effective in capturing and removal of suspended particles and POPs as compared to alum. FTIR spectra indicated a shift in the bonding of functional groups in the flocs produced by Guar gum as compared to raw Guar gum powder signifying chemical attachment of the organics present in the effluent to the coagulant resulting in their removal. Guar gum is highly recommended as a substitute to chemical coagulant in treating POPs due to its non-toxic and biodegradable characteristics.
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Affiliation(s)
- Yang Ling Kee
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Sumona Mukherjee
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Agamuthu Pariatamby
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
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36
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Optimization of pulp fibre removal by flotation using colloidal gas aphrons generated from a natural surfactant. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2015.02.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Wang Z, Wang C, Wang P, Qian J, Hou J, Ao Y, Wu B. The performance of chitosan/montmorillonite nanocomposite during the flocculation and floc storage processes of Microcystis aeruginosa cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:11148-11161. [PMID: 25940464 DOI: 10.1007/s11356-015-4412-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/18/2015] [Indexed: 06/04/2023]
Abstract
This study aimed to investigate the performance of chitosan-modified nano-sized montmorillonite (CTS/NMMT) during the flocculation of Microcystis aeruginosa (MA). The release of intracellular microcystins (MCs) caused by the damage of intact MA cells during the flocculation and floc storage processes was also comprehensively evaluated through scanning electron microscopy (SEM) and measurement of K(+) and Mg(2+) release. With the application of the Box-Behnken experimental design combined with response surface methodology, the quadratic statistical model was established to predict and optimize the interactive effects of content of CTS/NMMT, weight ratio of NMMT to CTS, and agitation time on the removal efficiency of MA cells. A maximum removal of 94.7 % MA cells was observed with content of CTS/NMMT 300-320 mg L(-1), weight ratio of NMMT to CTS 14-16, and agitation time 16-50 min. During the flocculation process, CTS/NMMT aggregated MA cells as flocs and served as a protection shield for cells. The extracellular and intracellular microcystin-leucine-arginine (MC-LR) decreased remarkably and the yield of intracellular MC-LR showed a decreasing trend during the flocculation. The cell integrity was slightly damaged by the mechanical actions rather than by the flocculant. During the floc storage process, cell lysis and membrane damage were remarkably aggravated. The noticeable increase of K(+) and Mg(2+) release indicated that CTS/NMMT damaged the integrity of most MA cells in the flocs and liberated the intracellular MC-LR. Meanwhile, NMMT and CTS polymers assisted the adsorptive removal of extracellular MC-LR released to water. The flocs should be timely treated within 12 h to prevent the leakage of MCs.
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Affiliation(s)
- Zhiyuan Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing, 210098, China,
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Khajvand T, Chaichi MJ, Colagar AH. Sensitive assay of hexythiazox residue in citrus fruits using gold nanoparticles-catalysed luminol–H2O2 chemiluminescence. Food Chem 2015; 173:514-20. [DOI: 10.1016/j.foodchem.2014.10.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 09/30/2014] [Accepted: 10/04/2014] [Indexed: 11/29/2022]
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Response surface modeling of acid activation of raw diatomite using in sunflower oil bleaching by: Box-Behnken experimental design. Journal of Food Science and Technology 2015; 52:1677-83. [PMID: 25745240 DOI: 10.1007/s13197-013-1113-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/11/2013] [Accepted: 07/18/2013] [Indexed: 10/26/2022]
Abstract
The optimum conditions for acid activation of diatomite for maximizing bleaching efficiency of the diatomite in sun flower oil treatment were studied. Box-Behnken experimental design combining with response surface modeling (RSM) and quadratic programming (QP) was employed to obtain the optimum conditions of three independent variables (acid concentration, activation time and solid to liquid) for acid activation of diatomite. The significance of independent variables and their interactions were tested by means of the analysis of variance (ANOVA) with 95 % confidence limits (α = 0.05). The optimum values of the selected variables were obtained by solving the quadratic regression model, as well as by analyzing the response surface contour plots. The experimental conditions at this global point were determined to be acid concentration = 8.963 N, activation time = 11.9878 h, and solid to liquid ratio = 221.2113 g/l, the corresponding bleaching efficiency was found to be about 99 %.
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Maran JP. Statistical optimization of aqueous extraction of pectin from waste durian rinds. Int J Biol Macromol 2015; 73:92-8. [DOI: 10.1016/j.ijbiomac.2014.10.050] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/16/2014] [Accepted: 10/22/2014] [Indexed: 10/24/2022]
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Yu D, Yang J, Fang X, Ren H. Simultaneous efficient removal of high-strength ammonia nitrogen and chemical oxygen demand from landfill leachate by using an extremely high ammonia nitrogen-resistant strain. Biotechnol Appl Biochem 2014; 62:357-68. [PMID: 25196098 DOI: 10.1002/bab.1284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 08/27/2014] [Indexed: 11/07/2022]
Abstract
Bioaugmentation is a promising technology for pollutant elimination from stressed environments, and it would provide an efficient way to solve challenges in traditional biotreatment of wastewater with high strength of ammonia nitrogen (NH4(+)-N). A high NH4(+)-N-resistant bacteria strain, identified as Bacillus cereus (Jlu BC), was domesticated and isolated from the bacteria consortium in landfill leachate. Jlu BC could survive in 100 g/L NH4(+)-N environment, which indicated its extremely high NH4(+)-N tolerance than the stains found before. Jlu BC was employed in the bioaugmented system to remove high strength of NH4(+)-N from landfill leachate, and to increase the removal efficiency, response surface methodology (RSM) was used for optimizing bioaugmentation degradation conditions. At the optimum condition (initial pH 7.33, 4.14 days, initial chemical oxygen demand [COD] concentration [18,000 mg/L], 3.5 mL inoculated domesticated bacteria strain, 0.3 mg/mL phosphorus supplement, 30 °C, and 170 rpm), 94.74 ± 3.8% removal rate of NH4(+)-N was obtained, and the experiment data corresponded well with the predicted removal rate of the RSM models (95.50%). Furthermore, COD removal rate of 81.94 ± 1.4% was obtained simultaneously. The results presented are promising, and the screened strain would be of great practical importance in mature landfill leachate and other NH4(+)-N enrichment wastewater pollution control.
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Affiliation(s)
- Dahai Yu
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, College of Life Science, Jilin University, Changchun, 130012, People's Republic of China
| | - Jiyu Yang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, College of Life Science, Jilin University, Changchun, 130012, People's Republic of China
| | - Xuexun Fang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, College of Life Science, Jilin University, Changchun, 130012, People's Republic of China
| | - Hejun Ren
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, Changchun, 130021, People's Republic of China
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42
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Synthesis of nanosheet layered double hydroxides at lower pH: Optimization of hardness and sulfate removal from drinking water samples. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.07.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Nair AT, Ahammed MM. Coagulant recovery from water treatment plant sludge and reuse in post-treatment of UASB reactor effluent treating municipal wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:10407-10418. [PMID: 24777321 DOI: 10.1007/s11356-014-2900-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/07/2014] [Indexed: 06/03/2023]
Abstract
In the present study, feasibility of recovering the coagulant from water treatment plant sludge with sulphuric acid and reusing it in post-treatment of upflow anaerobic sludge blanket (UASB) reactor effluent treating municipal wastewater were studied. The optimum conditions for coagulant recovery from water treatment plant sludge were investigated using response surface methodology (RSM). Sludge obtained from plants that use polyaluminium chloride (PACl) and alum coagulant was utilised for the study. Effect of three variables, pH, solid content and mixing time was studied using a Box-Behnken statistical experimental design. RSM model was developed based on the experimental aluminium recovery, and the response plots were developed. Results of the study showed significant effects of all the three variables and their interactions in the recovery process. The optimum aluminium recovery of 73.26 and 62.73 % from PACl sludge and alum sludge, respectively, was obtained at pH of 2.0, solid content of 0.5 % and mixing time of 30 min. The recovered coagulant solution had elevated concentrations of certain metals and chemical oxygen demand (COD) which raised concern about its reuse potential in water treatment. Hence, the coagulant recovered from PACl sludge was reused as coagulant for post-treatment of UASB reactor effluent treating municipal wastewater. The recovered coagulant gave 71 % COD, 80 % turbidity, 89 % phosphate, 77 % suspended solids and 99.5 % total coliform removal at 25 mg Al/L. Fresh PACl also gave similar performance but at higher dose of 40 mg Al/L. The results suggest that coagulant can be recovered from water treatment plant sludge and can be used to treat UASB reactor effluent treating municipal wastewater which can reduce the consumption of fresh coagulant in wastewater treatment.
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Affiliation(s)
- Abhilash T Nair
- Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India,
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Sivarajasekar N, Baskar R. Adsorption of basic red 9 on activated waste Gossypium hirsutum seeds: Process modeling, analysis and optimization using statistical design. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.10.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Mukherjee S, Mukhopadhyay S, Pariatamby A, Ali Hashim M, Sahu JN, Sen Gupta B. A comparative study of biopolymers and alum in the separation and recovery of pulp fibres from paper mill effluent by flocculation. J Environ Sci (China) 2014; 26:1851-1860. [PMID: 25193834 DOI: 10.1016/j.jes.2014.06.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/23/2014] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
Recovery of cellulose fibres from paper mill effluent has been studied using common polysaccharides or biopolymers such as Guar gum, Xanthan gum and Locust bean gum as flocculent. Guar gum is commonly used in sizing paper and routinely used in paper making. The results have been compared with the performance of alum, which is a common coagulant and a key ingredient of the paper industry. Guar gum recovered about 3.86mg/L of fibre and was most effective among the biopolymers. Settling velocity distribution curves demonstrated that Guar gum was able to settle the fibres faster than the other biopolymers; however, alum displayed the highest particle removal rate than all the biopolymers at any of the settling velocities. Alum, Guar gum, Xanthan gum and Locust bean gum removed 97.46%, 94.68%, 92.39% and 92.46% turbidity of raw effluent at a settling velocity of 0.5cm/min, respectively. The conditions for obtaining the lowest sludge volume index such as pH, dose and mixing speed were optimised for guar gum which was the most effective among the biopolymers. Response surface methodology was used to design all experiments, and an optimum operational setting was proposed. The test results indicate similar performance of alum and Guar gum in terms of floc settling velocities and sludge volume index. Since Guar gum is a plant derived natural substance, it is environmentally benign and offers a green treatment option to the paper mills for pulp recycling.
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Affiliation(s)
- Sumona Mukherjee
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia..
| | | | - Agamuthu Pariatamby
- Institute of Biological Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Mohd Ali Hashim
- Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Jaya Narayan Sahu
- Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Petroleum and Chemical Engineering, Faculty of Engineering, Institute Teknologi Brunei, Tungku Gadong, Brunei Darussalam
| | - Bhaskar Sen Gupta
- School of Planning, Architecture and Civil Engineering, Queen's University Belfast, David Keir Building, Belfast BT9 5AG, UK
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Moattari RM, Rahimi S, Rajabi L, Derakhshan AA, Keyhani M. Statistical investigation of lead removal with various functionalized carboxylate ferroxane nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2014; 283:276-291. [PMID: 25285999 DOI: 10.1016/j.jhazmat.2014.08.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/04/2014] [Accepted: 08/07/2014] [Indexed: 06/03/2023]
Abstract
Four new types of carboxylate-ferroxane nanoparticles, namely; maleate ferroxane (MF), fumarateferroxane (FF), para-amino benzoate ferroxane (PABF) and para-hydroxy benzoate ferroxane (PHBF) were synthesized, characterized and used for lead removal from aqueous solutions. Lepidocrocite nanoparticles were also synthesized and characterized asa precursorforcarboxylate-ferroxanes. FTIR, SEM and DLS analysis characterized the synthesized samplesand final Pb(II) concentration were analysed using inductively coupled plasma atomic emission spectrometer. Performance evaluation of the nanoparticlesin adsorption process was achieved using Taguchi experimental design. Variables in adsorption process were initial pH, contact time, adsorbent dose, adsorbent typeand initial concentration of Pb(2+) ions. The initial Pb(II) concentration was the most influential factor in the adsorption process among the five factors. Adsorption of lead was performed through two possible mechanisms; ion exchange and complex formation. Maleate ferroxane performed the best lead removal efficiency among the four types of ferroxane nanostructures studied. The adsorption kinetic data described well with a pseudo-second-order model and the equilibrium data fitted well to the Frendlich isotherm.
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Affiliation(s)
- Rozita M Moattari
- Polymer Research Lab., Department of Chemical Engineering, College of Engineering, Razi University, Kermanshah, Iran
| | - Safoora Rahimi
- Polymer Research Lab., Department of Chemical Engineering, College of Engineering, Razi University, Kermanshah, Iran
| | - Laleh Rajabi
- Polymer Research Lab., Department of Chemical Engineering, College of Engineering, Razi University, Kermanshah, Iran.
| | - Ali Ashraf Derakhshan
- Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Mohammad Keyhani
- Polymer Research Lab., Department of Chemical Engineering, College of Engineering, Razi University, Kermanshah, Iran
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Shahrabi-Farahani M, Yaghmaei S, Mousavi S, Amiri F. Bioleaching of heavy metals from a petroleum spent catalyst using Acidithiobacillus thiooxidans in a slurry bubble column bioreactor. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.04.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Govarthanan M, Lee GW, Park JH, Kim JS, Lim SS, Seo SK, Cho M, Myung H, Kamala-Kannan S, Oh BT. Bioleaching characteristics, influencing factors of Cu solubilization and survival of Herbaspirillum sp. GW103 in Cu contaminated mine soil. CHEMOSPHERE 2014; 109:42-48. [PMID: 24873705 DOI: 10.1016/j.chemosphere.2014.02.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/15/2014] [Accepted: 02/19/2014] [Indexed: 06/03/2023]
Abstract
This study was aimed at assess the potential of diazotrophic bacteria, Herbaspirillum sp. GW103, for bioleaching of Cu in mine soil. The strain exhibited resistance to As (550mgL(-1)), Cu (350mgL(-1)), Zn (300mgL(-1)) and Pb (200mgL(-1)). The copper resistance was further confirmed by locating copA and copB genes. The survival of the isolate GW103 during bioleaching was analyzed using green fluorescent protein tagged GW103. Response surface methodology based Box-Behnken design was used to optimize the physical and chemical conditions for Cu bioleaching. Five significant variables (temperature, incubation time, CaCO3, coconut oil cake (COC), agitation rate) were selected for the optimization. Second-order polynomials were established to identify the relationship between Cu bioleaching and variables. The optimal conditions for maximum Cu bioleaching (66%) were 30°C, 60h of incubation with 1.75% of CaCO3 and 3% COC at 140rpm. The results of Cu sequential extraction studies indicated that the isolate GW103 leached Cu from ion-exchangeable, reducible, strong organic and residual fractions. Obtained results point out that the isolate GW103 could be used for bioleaching of Cu from mine soils.
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Affiliation(s)
- Muthusamy Govarthanan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea
| | - Gun-Woong Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea
| | - Jung-Hee Park
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea
| | - Jae Su Kim
- Department of Agricultural Biology, College of Agriculture & Life Sciences, Chonbuk National University, Jeonju 561-756, South Korea
| | - Sung-Sik Lim
- Korea Rural Community Corp., Uiwang-si, Gyeonggi-do 437-703, South Korea
| | - Sang-Ki Seo
- Korea Rural Community Corp., Uiwang-si, Gyeonggi-do 437-703, South Korea
| | - Min Cho
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea
| | - Hyun Myung
- Department of Ecology Landscape Architecture-Design, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea
| | - Seralathan Kamala-Kannan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea.
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 570-752, South Korea.
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49
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Evaluating the Effectiveness of β-Carotene Extraction from Pulsed Electric Field-Treated Carrot Pomace Using Oil-in-Water Microemulsion. FOOD BIOPROCESS TECH 2014. [DOI: 10.1007/s11947-014-1334-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Selvam K, Govarthanan M, Kamala-Kannan S, Govindharaju M, Senthilkumar B, Selvankumar T, Sengottaiyan A. Process optimization of cellulase production from alkali-treated coffee pulp and pineapple waste using Acinetobacter sp. TSK-MASC. RSC Adv 2014. [DOI: 10.1039/c4ra00066h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to assess the mixed combination of coffee pulp waste (CPW) and pineapple waste (PW) residues for cellulase production using newly isolated Acinetobacter sp.
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Affiliation(s)
- Kandasamy Selvam
- Centre for Biotechnology
- Muthayammal College of Arts and Science
- Namakkal – 637 408, India
| | - Muthusamy Govarthanan
- PG & Research Department of Biotechnology
- Mahendra Arts and Science College
- Namakkal – 637501, India
- Division of Biotechnology
- College of Environmental and Bioresource Sciences
| | - Seralathan Kamala-Kannan
- Division of Biotechnology
- College of Environmental and Bioresource Sciences
- Chonbuk National University
- Iksan – 570752, South Korea
| | - Munisamy Govindharaju
- Department of Environmental Biotechnology
- Bharathidasan University
- Tiruchirappalli – 620 024, India
| | | | - Thangasamy Selvankumar
- PG & Research Department of Biotechnology
- Mahendra Arts and Science College
- Namakkal – 637501, India
- Department of Environmental Biotechnology
- Bharathidasan University
| | - Arumugam Sengottaiyan
- PG & Research Department of Biotechnology
- Mahendra Arts and Science College
- Namakkal – 637501, India
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