Microscopic analysis of aroma chemical distribution on fibers. I. <i>cis</i>‐3‐hexenyl salicylate

Liu, Haiqing; Obendorf, S. Kay; Young, Timothy J.; Incorvia, Michael J.

doi:10.1002/app.13579

Cited by 12 publications

(15 citation statements)

References 17 publications

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“…In this respect, Liu et al . found cis ‐3‐hexenyl salicylate and several other aroma compounds distributed throughout the fibre diameter of CO, whereas on PES fibres, with their typical round cross‐sectional shape and smooth surface, the compounds were only found sporadically at the fibre surface due to the lower polarity of PES. Cantergiani and Benczedi studied the absorption of fragrance molecules to CO towels by using inverse gas chromatography and dynamic vapour sorption, and attributed the adhesion of fragrance molecules to changes in the physico‐chemical properties of the CO fibre, i.e.…”

Section: Resultsmentioning

confidence: 98%

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Hammer

Berner-Dannenmann

Hoefer

2013

Flavour & Fragrance J

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The retention of malodours, especially sweat on fabrics, is a widely discussed problem in the textile industry and science. Since a quantitative analysis of the retention of sweat odour molecules on fibres has not been addressed so far, we used liquid scintillation counting to measure the adhesion/dehesion of 14C‐labelled isovaleric acid, a lead substance of sweat odour, to knitted fabrics of comparable textile structure made of pure cotton, wool or polyester. Significant retention differences were detected, with polyester showing the highest release of isovaleric acid after 3 h and 20 h. Fabric finishes with β‐cyclodextrin enhanced odour retention on cotton and polyester considerably. To study local influences of the clothing materials on odour release, we simulated in diffusion chamber cells a fabric/human skin wear situation using an artificial skin with skin‐like composition, topology and mechanical characteristics. Unidirectional transepidermal water vapour release of the skin model modulated the odour retention. Finally, all samples were subjected to a sensory evaluation test with trained panellists using olfactometry and a non‐labelled artificial sweat containing isovaleric acid as lead substance. Again, polyester showed little retention capacities, whereas the cyclodextrin finish enhanced binding of the artificial sweat and thus reduced its perception. The phase II approach revealed that perceived malodour intensity clearly depended on the finish and fibre type. The presented data and methods provide a basis for future optimization of clothes in terms of sweat odour management in their respective end uses, e.g. sport or business activities. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 98%

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Hammer

Berner-Dannenmann

Hoefer

2013

Flavour & Fragrance J

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“…[1][2][3][4]. Typical adsorption of an aroma chemical on cotton fabric in aqueous SDS and CTAC surfactant systems containing 10 mM and 100 mM NaCl is illustrated by the decalactone case in Fig.…”

Section: Effect Of Surfactantsmentioning

confidence: 99%

Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments

Obendorf

Liu

Tan

et al. 2008

J Surfact & Detergents

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Surfactants enhance adsorption of an aroma chemical on cotton fiber. Strong hydrophobic and electrostatic interactions between surfactant and fiber substrate result in higher adsorption of surfactant/aroma chemical aggregates than for the aroma chemical alone, with higher adsorption for cationic systems than for anionic systems. Adsorption is attributed to solution physical entrapment, hydrophobic interaction, dispersion forces, and interaction with surfactant molecules adsorbed on fiber. Log P and water solubility are important factors in aroma chemical adsorption. Hydrophobicity increased selective partitioning of aroma chemicals on the fiber surface particularly in the presence of surfactants. Statistical analyses indicate some evidence of polar-polar interaction between aroma chemicals and cellulose. With no surfactant, more adsorption is often observed in systems with a higher concentration of NaCl. The screening effect of electrolytes increases with the electrolyte reducing the energy of the liquid-solid interface. Lower interfacial energy results in increased adsorption of an aroma chemical on the fiber surfaces. Electrolyte screening affects aroma chemical adsorption most for anionic surfactant systems. Increase in the concentration of the electrolyte increases the screening effect that reduces the repulsive forces between the anionic molecules and weakly electronegative cotton fiber surfaces. In a cationic system, the screening effect of the electrolyte reduces adsorption of aroma chemicals with increased electrolyte concentration, due to the screening-reducing attraction between cationic surfactant molecules and the fiber surface. Chemical functionality shows a significant effect (alkanol C ketone C aldehyde [ ester) on adsorption. Adsorption increased with increasing molecule ovality. Statistical analyses indicate that molecular shape within a chemical class of compounds influences adsorption of the aroma chemical.

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“…Only a few of the irregular emulsified fragrance clusters were aggregated on the surface of the cotton fabrics treated with OF due to the absence of the interaction groups between CS and OF [Fig. 5(a)] 25. After washing 20 cycles, small or no residual aroma chemicals remained on the fiber surfaces showing the limited retention of trace amounts of aroma chemicals [Fig.…”

Section: Resultsmentioning

confidence: 99%

Properties of osmanthus fragrance‐loaded chitosan–sodium tripolyphosphate nanoparticles delivered through cotton fabrics

Xiao

et al. 2011

J of Applied Polymer Sci

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Osmanthus fragrance-loaded chitosan nanoparticles (OF-NPs) were prepared via complex coacervation successfully. Then, the OF-NPs were applied in the cotton fabrics directly. The microstructures of OF-NPs were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), Fourier transformation infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The sustained property of the cotton fabrics treated with OF-NPs was investigated with scanning electron microscopy (SEM) and gas chromatographymass spectrometry (GC-MS). The common OF was also treated on fabrics for the parallel comparison. TEM and DLS displayed that the spherical OF-NPs kept about 130 nm and dispersed evenly. FTIR confirmed that OF had been interacted with chitosan via the hydrogen bonds. TGA demonstrated that the thermal stability of OF-NPs had been improved in contrast to OF and the loading content of OF was as high as 12.05%. SEM and GC-MS displayed that the cotton fabrics treated by OF-NPs had an excellent washing resistance. Overall, nanoencapsulation with CS-TPP will provide an excellent method for releasing fragrance.

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Microscopic analysis of aroma chemical distribution on fibers. I. cis‐3‐hexenyl salicylate

Cited by 12 publications

References 17 publications

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments

Properties of osmanthus fragrance‐loaded chitosan–sodium tripolyphosphate nanoparticles delivered through cotton fabrics

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