Synergic Effects of Surfactant and Chelating Agent on Stubborn Keratin Grime for Easy Cleaning

We report on the synergic effect of surfactants and chelating agents on the mechanism to remove stubborn keratin grime (keratin-Ca), which is bound with calcium ions and one of the most difficult grimes to remove, in order to make it easier to clean bathtubs in less time and with less scrubbing. Our...

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Veröffentlicht in:Journal of Oleo Science 2021, Vol.70(12), pp.1769-1776
Hauptverfasser: Sudo, Shinya, Watanabe, Yosuke, Morigaki, Atsunori, Inomata, Kazuya, Hyodo, Ryo, Naito, Atsushi
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container_end_page 1776
container_issue 12
container_start_page 1769
container_title Journal of Oleo Science
container_volume 70
creator Sudo, Shinya
Watanabe, Yosuke
Morigaki, Atsunori
Inomata, Kazuya
Hyodo, Ryo
Naito, Atsushi
description We report on the synergic effect of surfactants and chelating agents on the mechanism to remove stubborn keratin grime (keratin-Ca), which is bound with calcium ions and one of the most difficult grimes to remove, in order to make it easier to clean bathtubs in less time and with less scrubbing. Our approach was to focus on keratin swelling, which we achieved by applying aqueous solutions with chelating agents and anionic surfactants, the combination of which greatly improved the swelling ratio, resulting in quick, easy removal of keratin-Ca with water rinsing and little scrubbing. For the swelling process, we added chelating agents and anionic surfactants to swell the keratin-Ca by both capturing calcium ions and improving solution permeation. Furthermore, we measured the structural change of the keratin-Ca during swelling by TD-NMR and confirmed that a certain combination of chelating agent and anionic surfactant improved swelling by affecting not only the amorphous part such as the keratin matrix, but also the crystalline part such as the intermediate filaments (IFs).
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Our approach was to focus on keratin swelling, which we achieved by applying aqueous solutions with chelating agents and anionic surfactants, the combination of which greatly improved the swelling ratio, resulting in quick, easy removal of keratin-Ca with water rinsing and little scrubbing. For the swelling process, we added chelating agents and anionic surfactants to swell the keratin-Ca by both capturing calcium ions and improving solution permeation. Furthermore, we measured the structural change of the keratin-Ca during swelling by TD-NMR and confirmed that a certain combination of chelating agent and anionic surfactant improved swelling by affecting not only the amorphous part such as the keratin matrix, but also the crystalline part such as the intermediate filaments (IFs).</description><identifier>ISSN: 1345-8957</identifier><identifier>EISSN: 1347-3352</identifier><identifier>DOI: 10.5650/jos.ess21239</identifier><identifier>PMID: 34759116</identifier><language>eng</language><publisher>Japan: Japan Oil Chemists' Society</publisher><subject>anionic surfactant ; Aqueous solutions ; bathtub grime ; Calcium ; Calcium ions ; chelating agent ; Chelating agents ; Chelating Agents - pharmacology ; Chelation ; Cleaning ; Detergents ; Drug Synergism ; easy cleaning ; Filaments ; Keratin ; Keratins ; NMR ; Nuclear magnetic resonance ; penetration ; Solutions ; Surface-Active Agents - pharmacology ; Surfactants ; swelling ; Swelling ratio ; Washing ; Water ; Wettability</subject><ispartof>Journal of Oleo Science, 2021, Vol.70(12), pp.1769-1776</ispartof><rights>2021 by Japan Oil Chemists' Society</rights><rights>2021. 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subjects anionic surfactant
Aqueous solutions
bathtub grime
Calcium
Calcium ions
chelating agent
Chelating agents
Chelating Agents - pharmacology
Chelation
Cleaning
Detergents
Drug Synergism
easy cleaning
Filaments
Keratin
Keratins
NMR
Nuclear magnetic resonance
penetration
Solutions
Surface-Active Agents - pharmacology
Surfactants
swelling
Swelling ratio
Washing
Water
Wettability
title Synergic Effects of Surfactant and Chelating Agent on Stubborn Keratin Grime for Easy Cleaning
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