scholarly journals Effect of Floor Cleaner Combination of Alcohol Ethoxylate-Sodium Lauryl Ether Sulfate and Combination of Carbol-Pine Oil on Ascaris lumbricoides Eggs

2021 ◽  
Vol 11 (6) ◽  
pp. 68-74
Author(s):  
Vidi Posdo Simarmata

Disinfectants are chemical agents used in disinfection in liquid form or solution form and are well-known as microbicidal, fungicidal, and virucidal but still unknown as parasiticidal, especially the effect to A. lumbricoides. In Indonesia, the prevalence of ascariasis is about 30,4% and still high. Ascariasis is caused by A. lumbricoides helminth that human swallows in egg form. Ascaris lumbricoides egg's characteristics are hydrophobic and sticky, making it easy to stick on the floor, household, and skin. This research aims to find the difference between the combination of the effects of Alcohol Ethoxylate-Sodium Lauryl Ether Sulfate and the combination of Carbol-Pine Oil to A. lumbricoides eggshell and larva development as prevention and to break the life cycle chain of A. lumbricoides. The research results showed no effects from Alcohol Ethoxylate- Sodium Lauryl Ether Sulfate combination and Carbol-Pine Oil combination to A. lumbricoides eggshell and embryo development. Keywords: Disinfectants, ascariasis, concentration, eggshell, larva development.

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5818
Author(s):  
Andrzej Lewandowski ◽  
Katarzyna Szymczyk

The UV absorption spectra of six structurally related derivatives of anisole and veratrole, i.e., anisaldehyde, (E)-anethole, estragole, veratraldehyde, methyleugenol and (E)-methylisoeugenol, were recorded at various concentrations of the anionic surfactants, either sodium lauryl sulfate (SLS) or sodium lauryl ether sulfate (SLES) at T = 298 K. In addition, conductivity and density measurements were made for the SLS and SLES solutions to determine the volumetric properties of the studied surfactants. Next, using the W. Al-Soufi, L. Pińeiro and M. Novo model (APN model) including the pseudo-phase model for micellar solubilization, the values of micelle-water partition coefficients for each perfume-surfactant system were determined. In addition, the relations between the molecular structures of the solute and the head group of the surfactant and the value of the micelle-water partition coefficient as well as the octanol-water one were discussed.


2019 ◽  
Vol 240 ◽  
pp. 118203
Author(s):  
Alex R. Nogueira ◽  
Maria da Graça C.B. Popi ◽  
Claudia Cristina Sanchez Moore ◽  
Luiz Kulay

2020 ◽  
pp. 096703352096382
Author(s):  
SE Cunliffe ◽  
PA Martin ◽  
MR Baker ◽  
O Mihailova ◽  
PJ Martin

Compositional variations in the surfactants used to produce personal care products result in significant challenges during large scale manufacturing, for example errors in product viscosity. Characterisation of the surfactant can be completed using chromatographic techniques however these are time consuming and impractical during real-time manufacturing. Near infrared (NIR) absorption spectroscopy with a fibre-optic coupled transmission probe is proposed as an in-line method of determining the levels of unsulfated alcohol in sodium lauryl ether sulfate (SLES). NIR absorption spectra in the region of 4000 – 12000 cm−1 were collected for a range of supplier samples at three temperatures. Gas chromatography - mass spectrometry was used as a reference technique to quantify samples of SLES and quantitative chemometric data analysis was used to produce partial least squares (PLS) calibration models for the prediction of surfactant composition. PLS regression was performed on the data in the spectral regions between 7509 – 5334 cm−1 using a range of data pre-processing techniques to identify the best model. Models were evaluated using root mean square error of cross validation (RMSECV) and residual predictive deviation (RPD) as the primary indicator of model accuracy and robustness. A partial least squares regression model using a generalised least squares weighting data pre-processing approach was found to be the most robust in regards to sample non-homogeneity and temperature, producing a model with an RMSECV = 0.094 w/w% and RPD = 4.03. The model successfully predicted the unsulfated alcohol mass percentage in an external validation of unknown samples with alcohol levels within the model limits of 0.7–2.2 w/w%. Spectra acquired at a resolution of 8 cm−1 with 32 scans take just 16 seconds to obtain, proving that NIR spectroscopy can successfully be applied as an alternative analytical method to gas chromatography for the determination of low level impurities in viscous surfactant systems.


2017 ◽  
Vol 101 (12) ◽  
pp. 5163-5173 ◽  
Author(s):  
Ana M. S. Paulo ◽  
Rozelin Aydin ◽  
Mauricio R. Dimitrov ◽  
Harm Vreeling ◽  
Ana J. Cavaleiro ◽  
...  

2013 ◽  
Vol 70 (12) ◽  
pp. 3305-3316 ◽  
Author(s):  
Manuela Florea-Spiroiu ◽  
Diana Achimescu ◽  
Ioana Stanculescu ◽  
Munizer Purica ◽  
Raluca Gavrila ◽  
...  

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