Details
| Original language | English |
|---|---|
| Pages (from-to) | 16-20 |
| Number of pages | 5 |
| Journal | Journal of Pesticide Sciences |
| Volume | 26 |
| Issue number | 1 |
| Publication status | Published - 2001 |
| Externally published | Yes |
Abstract
The effect of the surfactant Triton X-100, α-[4-(1,1,3,3-tetramethylbutyl) phenyl]-ω-hydroxypolyoxy-1,2-ethanediyl, on solubilization of epicuticular wax of mature tomato (Lycopersicon esculentum Mill.) fruit was investigated. The surfactant solubilized the unsaturated hydrocarbons, hexacosene and tritriacontadiene, and the triterpenols, α-and β-amyrins; solubilization was concentration dependent above the critical micelle concentration. Only traces or nondetectable quantities of saturated hydrocarbons were solubilized. Our data provide a definitive evidence that the surfactant solubilized selective constituents of epicuticular wax. Based on calculation of the logarithm of octanol/water partition coefficients for wax constituents, it appears that the mechanism of surfactant solubilization of the constituents was not solely related to the hydrophobicity of the constituents, but may involve pi-pi interaction, van der Waals interaction or molecular conformation of the solubilized constituents. This solubilization of epicuticular wax may decrease the diffusive resistance of the cuticular membrane and, hence, facilitate penetration of surfactant-formulated foliar applied agrochemicals.
Keywords
- Cuticle, GC-MS, Lycopersicon esculentum, Micelle, Penetration, Solubilization
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Insect Science
- Environmental Science(all)
- Health, Toxicology and Mutagenesis
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In: Journal of Pesticide Sciences, Vol. 26, No. 1, 2001, p. 16-20.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Selective solubilization of tomato fruit epicuticular wax constituents by Triton X-100 surfactant
AU - Tamura, Hiroto
AU - Knoche, Moritz
AU - Hayashi, Yoshiyuki
AU - Bukovac, Martin J.
PY - 2001
Y1 - 2001
N2 - The effect of the surfactant Triton X-100, α-[4-(1,1,3,3-tetramethylbutyl) phenyl]-ω-hydroxypolyoxy-1,2-ethanediyl, on solubilization of epicuticular wax of mature tomato (Lycopersicon esculentum Mill.) fruit was investigated. The surfactant solubilized the unsaturated hydrocarbons, hexacosene and tritriacontadiene, and the triterpenols, α-and β-amyrins; solubilization was concentration dependent above the critical micelle concentration. Only traces or nondetectable quantities of saturated hydrocarbons were solubilized. Our data provide a definitive evidence that the surfactant solubilized selective constituents of epicuticular wax. Based on calculation of the logarithm of octanol/water partition coefficients for wax constituents, it appears that the mechanism of surfactant solubilization of the constituents was not solely related to the hydrophobicity of the constituents, but may involve pi-pi interaction, van der Waals interaction or molecular conformation of the solubilized constituents. This solubilization of epicuticular wax may decrease the diffusive resistance of the cuticular membrane and, hence, facilitate penetration of surfactant-formulated foliar applied agrochemicals.
AB - The effect of the surfactant Triton X-100, α-[4-(1,1,3,3-tetramethylbutyl) phenyl]-ω-hydroxypolyoxy-1,2-ethanediyl, on solubilization of epicuticular wax of mature tomato (Lycopersicon esculentum Mill.) fruit was investigated. The surfactant solubilized the unsaturated hydrocarbons, hexacosene and tritriacontadiene, and the triterpenols, α-and β-amyrins; solubilization was concentration dependent above the critical micelle concentration. Only traces or nondetectable quantities of saturated hydrocarbons were solubilized. Our data provide a definitive evidence that the surfactant solubilized selective constituents of epicuticular wax. Based on calculation of the logarithm of octanol/water partition coefficients for wax constituents, it appears that the mechanism of surfactant solubilization of the constituents was not solely related to the hydrophobicity of the constituents, but may involve pi-pi interaction, van der Waals interaction or molecular conformation of the solubilized constituents. This solubilization of epicuticular wax may decrease the diffusive resistance of the cuticular membrane and, hence, facilitate penetration of surfactant-formulated foliar applied agrochemicals.
KW - Cuticle
KW - GC-MS
KW - Lycopersicon esculentum
KW - Micelle
KW - Penetration
KW - Solubilization
UR - http://www.scopus.com/inward/record.url?scp=0035649077&partnerID=8YFLogxK
U2 - 10.1584/jpestics.26.16
DO - 10.1584/jpestics.26.16
M3 - Article
AN - SCOPUS:0035649077
VL - 26
SP - 16
EP - 20
JO - Journal of Pesticide Sciences
JF - Journal of Pesticide Sciences
SN - 0385-1559
IS - 1
ER -