Biodegradation of 2-Sulfonatofatty Acid Methyl Ester (α-SFMe). III

Masuda, Mitsuteru; Odake, H.; Miura, Kazuaki; Oba, Koji

doi:10.5650/jos1956.43.617

Cited by 17 publications

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“…In Japan, 2-sulfonato fatty acid methyl ester sodium salt (MES) has been used as one of the main surfactants in heavy-duty household granular detergents 1) . The eco-toxicological effects 2) and the biodegradability [3][4][5] of MES were reported previously. MES is readily and fully biodegradable under aerobic conditions; therefore, it can be removed efficiently by biological wastewater treatment systems such as activated sludge [3][4][5] .…”

Section: Introductionmentioning

confidence: 52%

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Aquatic Risk Assessment of 2-Sulfonato Fatty Acid Methyl Ester Sodium Salt (MES)

Miura

2007

J. Oleo Sci.

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The aquatic risk of 2-sulfonato fatty acid methyl ester sodium salt (MES) used in household detergents was assessed. The environmental exposure assessment expressed as predicted environmental concentration (PEC) was determined on the basis of monitoring results from the seven sites of four rivers in the urban area in Tokyo and Osaka. The 95 percentile as well as geometric mean of the MES concentration was found to exhibit a good correlation with the geometric mean of the Biochemical Oxygen Demand (BOD; the latter's regression was greater than 0.99). The predicted no effect concentration (PNEC) for the aquatic environment was estimated by performing chronic assays of algae and daphnia. The risk characterization ratio (RCR: PEC/PNEC) was less than 1. Therefore, it is concluded that MES will not adversely affect the aquatic environment in Japan.

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Section: Introductionmentioning

confidence: 52%

“…conventional biological wastewater treatment systems because it is readily and fully biodegradable under aerobic conditions [3][4][5] . It has already been assessed that the surfactants LAS, alcohol ethoxylates, and alkyl amine oxide in household detergents pose a low risk; in this case also, the PECs are less than the PNECs 6) .…”

Section: K Miuramentioning

confidence: 99%

Aquatic Risk Assessment of 2-Sulfonato Fatty Acid Methyl Ester Sodium Salt (MES)

Miura

2007

J. Oleo Sci.

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“…In particular, green surfactants, which are derived from natural resources, have been substituted for petroleum-derived surfactants in the fields of detergents, cosmetics, and pharmaceuticals, among others (Aramaki, Hoshida, & Arima, 2012;Beija, Salvayre, Viguerie, & Marty, 2012;Imura et al, 2006;Imura, Yanagishita, & Kitamoto, 2004;Maestro et al, 2004;Rodriguez, Martin, Ruiz, & Clares, 2016;Shrestha, Acharya, et al, 2006;Shrestha, Aramaki, Kato, Takase, & Kunieda, 2006;Shrestha, Shrestha, & Aramaki, 2008;Shrestha, Shrestha, Solans, Gonzalez, & Aramaki, 2010;Yamashita & Hashida, 2013). α-Sulfonated fatty acid methyl ester salts (MES) are an example of green surfactants derived from renewable plant resources for eco-friendly washing detergents because of their excellent detergent properties (Marcel, 2003;Ogoshi & Miyawaki, 1985;Okano, Tanabe, Fukuda, & Tanaka, 1992), biodegradability (Masuda, Odake, Miura, Ito, et al, 1993;, 1994, and enzyme stability (Satsuki, Tobe, Yoneyama, & Mukaiyama, 1999). Various physicochemical properties of MES, as anionic surfactants, have been studied.…”

Section: Introductionmentioning

confidence: 99%

Structural Analyses of Hydrated Crystals in Mixed Green Surfactant Systems: α‐Sulfonated Fatty Acid Methyl Ester Salt and Fatty Acid Soap Mixtures

Watanabe

Morigaki

Yuba

et al. 2018

J Surfact & Detergents

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α‐Sulfonated fatty acid methyl ester salts (MES), synthesized from renewable plant resources, are an example of green surfactants used in eco‐friendly washing detergents because of their excellent detergent properties, biodegradability, and enzyme stability. Although various physicochemical properties of MES crystals and micelles have been studied, mixed systems composed of MES and other surfactants have not been well studied. We investigated the crystalline structures of hydrated solids in mixed systems containing MES and soaps, which have been utilized as detergents, using small‐ and wide‐angle X‐ray scattering (SWAXS), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy techniques. The minimum dissolution temperature, determined by visual observation, of a 4:1 M ratio of the sodium salt of α‐sulfonated palmitic acid methyl ester (C16MES‐Na) and sodium palmitate (C16‐Na), is indicative of a eutectic mixture. SWAXS measurements reveal that C16MES‐Na and C16‐Na crystals are formed separately in this system. Eutectic mixtures were also observed for the C16MES‐Na/C16MES‐K (α‐sulfonated palmitic acid methyl ester potassium salt) system and in the C16MES‐K/C16‐Na system. Furthermore, in addition to C16MES‐K and C16‐Na crystals, C16MES‐Na crystals were also formed in the C16MES‐K/C16‐Na system, through counterion exchange during crystallization.

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“…Introduction α-sulfonated methyl ester (α-SME) is an oleochemicalbased anionic surfactant derived from natural fats and oil resources including tallow, soya, palm oil (Ahmad et al, 1998;Xie et al, 2013), castor oil (Babu et al, 2015;Meshram et al, 2015), and coconut oil. It is made from renewable natural resources and has excellent biodegradability (Ghazali and Ahmad, 2004;Ishak et al, 2016;Masuda et al, 1993Masuda et al, , 1993b. Active cleaning properties of α-SME are due to its calcium hardness tolerance (Fujiwara et al, 1993) and good detergency (Drodz and Dasai, 1991;Lewandowski and Schwuger, 2003;Maurad et al, 2006;Okano et al, 1992;Satsuki et al, 1992).…”

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confidence: 99%

A New Gas Chromatography–Mass Spectrometry Method for Detecting and Quantifying Low Levels of Dimethyl Sulfate in Palm Oil‐Based Sulfonated Methyl Esters

Ping¹,

Aziz²

2019

J Surfact & Detergents

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Dimethyl sulfate (DMS) is a potential carcinogen that may be formed during the production of α‐sulfonated methyl ester (α‐SME). To date, there have been no published analytical methods for quantification of DMS in palm oil‐based α‐SME. The objective of the method development was to establish a simple and reliable method for quantifying and monitoring DMS from palm oil‐based α‐SME. The sample preparation prior to analysis involved extracting DMS from α‐SME using hexane. The gas chromatography–mass spectrometry (GC–MS) separation was performed on an Agilent MS‐HP5 column (30 m × 320 μm × 0.25 μm). The MS signal was obtained in the selected ion monitoring (SIM) mode. The method was validated according to the International Conference on Harmonization (ICH) guidelines. The accuracy of the method was measured via percentage recoveries of DMS from spiked α‐SME samples at spiking levels of (25, 125, 250, and 500) μg mL−1. The percentage recoveries for all spiking levels were found to be in the range of 88.6–97.4%. The repeatability and interday reproducibility were found to be satisfactory as the relative standard deviations (RSD) were within 11%. The method also has a good linear relationship as indicated by the coefficient of determination of 0.9996 over the range of 1.0–30 μg mL−1. The limits of detection (LOD) and quantification (LOQ) corresponded to 0.8 and 2.3 μg mL−1, respectively. The developed method demonstrated sufficient linearity, intraday and interday precision, sensitivity, and accuracy for determination of DMS in palm oil‐based α‐SME.

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Biodegradation of 2-Sulfonatofatty Acid Methyl Ester (α-SFMe). III

Cited by 17 publications

References 0 publications

Aquatic Risk Assessment of 2-Sulfonato Fatty Acid Methyl Ester Sodium Salt (MES)

Aquatic Risk Assessment of 2-Sulfonato Fatty Acid Methyl Ester Sodium Salt (MES)

Structural Analyses of Hydrated Crystals in Mixed Green Surfactant Systems: α‐Sulfonated Fatty Acid Methyl Ester Salt and Fatty Acid Soap Mixtures

A New Gas Chromatography–Mass Spectrometry Method for Detecting and Quantifying Low Levels of Dimethyl Sulfate in Palm Oil‐Based Sulfonated Methyl Esters

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