Tenside Surfactants Detergents最新文献_第9页

Single batch co-production of Pseudomonad polyhydroxybutyrate and rhamnolipids on wasted cooking oil under salinity stress 盐胁迫下利用废弃食用油单批联产多羟基丁酸假单胞菌和鼠李糖脂

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-06-08 DOI: 10.1515/tsd-2023-2511

Z. A. Raza, Muhammad Rizwan Tariq

{"title":"Single batch co-production of Pseudomonad polyhydroxybutyrate and rhamnolipids on wasted cooking oil under salinity stress","authors":"Z. A. Raza, Muhammad Rizwan Tariq","doi":"10.1515/tsd-2023-2511","DOIUrl":"https://doi.org/10.1515/tsd-2023-2511","url":null,"abstract":"Abstract Polyhydroxyalkanoates (PHAs) are emerging biodegradable bioplastics, and rhamnolipids are sustainable biosurfactants; both are considered as alternatives to synthetic petroleum-based plastics and surfactants, respectively. Herein, the effects of three distinct nitrogen sources on PHAs and rhamnolipid yields during the fermentation process have been undertaken. The study focuses on the optimum co-production of PHAs and rhamnolipid using a Pseudomonas aeruginosa strain grown on wasted soybean oil (WSO) with different nitrogen sources in the minimal salts’ media under salinity stress with shake flask conditions. The yields of PHAs and rhamnolipids were observed to be 2.20 g L−1 and 1.02 g L−1, respectively, with carbamide as the sole nitrogen and WSO (2 %, w/v) as the sole carbon source. The fermentative yields of both PHAs (2.37 g L−1) and rhamnolipids (1.24 g L−1) roughly increased up to 8 % under salinity stress. The products were characterized using advanced analytical techniques. The chemical structure of rhamnolipid with this strain had previously been elucidated, whereas the PHA produced was identified as a poly(hydroxybutyrate).","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"60 1","pages":"286 - 295"},"PeriodicalIF":1.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49285979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CuCl2-modified ionic liquids for alkylation of benzene with 1-dodecene 苯与1-十二烯烷基化用cucl2修饰离子液体

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-06-08 DOI: 10.1515/tsd-2022-2493

Yarou Yang, Xu Li, Jinxiang Dong

{"title":"CuCl2-modified ionic liquids for alkylation of benzene with 1-dodecene","authors":"Yarou Yang, Xu Li, Jinxiang Dong","doi":"10.1515/tsd-2022-2493","DOIUrl":"https://doi.org/10.1515/tsd-2022-2493","url":null,"abstract":"Abstract Benzene and 1-dodecene are often alkylated to produce linear alkylbenzene (LAB). LAB is the raw material for the production of linear alkylbenzene sulfonate (LAS), a very important anionic surfactant used in both industrial cleaning and commercial laundry processes, as well as in household laundry detergents. In the present study, we investigated the use of [Et3NH]Cl–2AlCl3 modified with CuCl2 as a catalyst for the alkylation of benzene with 1-dodecene, specifically looking at the effect of reaction conditions on product activity. The results showed that a conversion of 1-dodecene of 100.0 % and a selectivity of LAB of 93.79 % could be obtained when the following ideal reaction conditions were present: molar ratio of benzene/1-dodecene = 6, reaction temperature = 25 °C, reaction time = 10 min, stirring speed of 1000 rpm and addition of 5.0 mol % CuCl2). The catalyst concentration was 7.0 mol %. FTIR and 31P-TMPO-NMR measurements were performed to characterise the ionic liquid before and after the addition of CuCl2. After the addition of CuCl2, it was found that the acidity of the ionic liquid had decreased. The regeneration of the catalyst was also investigated and the cause of inactivation of the catalyst was determined. The results showed that CuCl2 modified the ionic liquids and decreased the benzene/1-dodecene ratio, but the high product selectivity was maintained.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"60 1","pages":"368 - 375"},"PeriodicalIF":1.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44963900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of surfactants and enzymes on the direct determination of protein on fabric using the BCA reaction 表面活性剂和酶对BCA反应直接测定织物蛋白质的影响

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-06-07 DOI: 10.1515/tsd-2023-2507

Mai Tsukazaki, M. Morita, Y. Yoneyama

引用次数: 0

Surface and foaming properties of an anionic CO2-switchable tail surfactant 阴离子型co2可切换尾部表面活性剂的表面和发泡性能

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-06-06 DOI: 10.1515/tsd-2023-2524

Robin R. Benedix, Hailey Poole, D. Zauser, Natalie Preisig, P. Jessop, C. Stubenrauch

引用次数: 1

Frontmatter 头版头条

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-05-01 DOI: 10.1515/tsd-2023-frontmatter3

引用次数: 0

Study on the properties of amide Gemini surfactants 酰胺Gemini表面活性剂的性能研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-05-01 DOI: 10.1515/tsd-2022-2468

Y. Cai, Hujun Xu, Peng Ling

引用次数: 0

Study on the synthesis and properties of cardanol sulfonate 腰果酚磺酸盐的合成及性能研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-04-21 DOI: 10.1515/tsd-2022-2455

Yue Liu, Hujun Xu, Jingguo Yang, Haiyan Gao

{"title":"Study on the synthesis and properties of cardanol sulfonate","authors":"Yue Liu, Hujun Xu, Jingguo Yang, Haiyan Gao","doi":"10.1515/tsd-2022-2455","DOIUrl":"https://doi.org/10.1515/tsd-2022-2455","url":null,"abstract":"Abstract In this work, using the natural product cardanol and chlorosulfonic acid as the main raw materials, the anionic surfactant cardanol sulfonate (CDS) was synthesised and investigated for its surface properties and thermodynamic properties using surface tension, conductivity and fluorescence methods. In addition, the application properties of CDS, such as foaming and cleaning ability were investigated and compared with those of sodium dodecylbenzene sulfonate (SDBS). The structure of the surfactant was characterised by FTIR, 1H NMR and MS. The Krafft point of the surfactant was below 25 °C, indicating good water solubility. The CMC values were determined by surface tension, conductivity and micropolarity measurements. The obtained CMCs agreed well within the measuring accuracy. The CMC increased with increasing temperature. As a function of temperature, the following CMC values were obtained: 5.13 × 10−3 mol L−1 (25 °C), 5.63 × 10−3 mol L−1 (35 °C) and 5.77 × 10−3 mol L−1 (45 °C). The values of surface tensions at the respective CMCs were γ CMC = 44.47 mN m−1 (25 °C), 43.53 mN m−1 (35 °C), and 42.45 mN m−1 (45 °C). The application property results showed that the foaming capacity, foam stabilisation and cleaning ability of CDS and SDBS were similar to each other, indicating that CDS can be used as a raw material for commercial detergent production.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"60 1","pages":"260 - 268"},"PeriodicalIF":1.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42564399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The effects of SDS, APG, and DTAB surfactants on the morphology of micro-nano RDX particles prepared in a microfluidic reactor SDS、APG和DTAB表面活性剂对微流控反应器中制备的微纳RDX颗粒形态的影响

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-04-21 DOI: 10.1515/tsd-2022-2482

Ying Li, YiFan Zhang, Le-wu Zhan, Jing Hou, Bin-dong Li

引用次数: 1

Potential of binary mixtures of sodium lauryl sulfoacetate (SLSA) and alkyl polyglucoside (APG10) as oil degreaser 十二烷基磺基乙酸钠（SLSA）和烷基葡糖苷（APG10）二元混合物作为油脂脱脂剂的潜力

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-04-18 DOI: 10.1515/tsd-2022-2454

Sakaria N. Dina, Zainal Abidin M. H. Shah, Azman N. Raudhah, A. U. Aisah

{"title":"Potential of binary mixtures of sodium lauryl sulfoacetate (SLSA) and alkyl polyglucoside (APG10) as oil degreaser","authors":"Sakaria N. Dina, Zainal Abidin M. H. Shah, Azman N. Raudhah, A. U. Aisah","doi":"10.1515/tsd-2022-2454","DOIUrl":"https://doi.org/10.1515/tsd-2022-2454","url":null,"abstract":"Abstract The industry is challenged to replace toxic chemical-based surfactants with environmentally friendly and biodegradable surfactants. In this study, binary mixtures of sodium lauryl sulfoacetate (SLSA) and an alkyl polyglucoside (APG10) in various proportions were investigated for their effectiveness as degreasing agents. Efficacy was characterised using surface tension measurements, oil dispersion tests, emulsification, pH and cleaning efficacy in removing engine oil from a metal plate. The surface tension results for all solutions showed a critical micelle concentration of 1500 ppm. The dispersion tests (with oil:surfactant ratios of 1:2 and 1:3) showed that the oil was fully dispersed at an oil:surfactant ratio of 1:2 i.e., at a concentration of 2500 ppm SLSA and 2000 ppm of a binary solution with a volume ratio of SLSA:APG10 of 75:25. At a ratio of 1:3, the oil was fully dispersed with 2500 ppm of a binary solution with a ratio of SLSA:APG10 of 75:25. Overall, the solution with a volume ratio of SLSA:APG10 of 75:25 was the most favourable. The results also showed that a solution containing only SLSA had good potential as a degreaser, as it achieved a cleaning performance of 90% in removing oil from the metal plate despite low emulsification levels (E24) for both surfactants. In summary, a combination of these two green surfactants can be used effectively as a degreasing agent.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"60 1","pages":"236 - 244"},"PeriodicalIF":1.0,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43750728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tensiometric and rheological investigations of single and mixed systems consisting of cocamidopropyl betaine (CAPB) and sodium dodecyl benzene sulfonate (SDBS) in aqueous solutions 椰油酰胺丙基甜菜碱（CAPB）和十二烷基苯磺酸钠（SDBS）单体系和混合体系在水溶液中的张力和流变学研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-03-27 DOI: 10.1515/tsd-2022-2492

R. Abdel-Rahem, F. Al-Akayleh, M. Al-Remawi

{"title":"Tensiometric and rheological investigations of single and mixed systems consisting of cocamidopropyl betaine (CAPB) and sodium dodecyl benzene sulfonate (SDBS) in aqueous solutions","authors":"R. Abdel-Rahem, F. Al-Akayleh, M. Al-Remawi","doi":"10.1515/tsd-2022-2492","DOIUrl":"https://doi.org/10.1515/tsd-2022-2492","url":null,"abstract":"Abstract The surface tension (σ), critical micelle concentration (CMC), surface excess (Γ), minimum area occupied by a surfactant molecule (Amin), the viscosity and oscillatory rheological studies of aqueous solutions containing cocamidopropyl betaine (CAPB) and sodium dodecylbenzene sulfonate (SDBS) at molar fractions of 0.00, 0.25, 0.50, 0.75 and 1.00 and 25 °C were presented. CAPB and SDBS were not found to interact synergistically in water at any of the molar fractions studied. This is due to the fact that the critical micelle concentrations of these mixtures were higher than those predicted by Clint’s equation, indicating an antagonism that rarely occurs in mixed amphoteric/anionic surfactant systems. The minimum area occupied by a surfactant molecule (Amin) was reduced in CAPB/SDBS mixtures compared to unmixed surfactants. In contrast, the viscosity of the mixed CAPB/SDBS system increased significantly from 1.0 mPa s to a maximum of 36.0 Pa s at higher CAPB mole fractions (0.5–0.8). The rheograms obtained from the oscillation measurements of the viscous CAPB/SDBS solutions are characteristic of wormlike micelles (WLMs) according to the Maxwell model. The results of this surprising binary CAPB/SDBS surfactant mixing system are presented and discussed.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"60 1","pages":"214 - 222"},"PeriodicalIF":1.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41638232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1