Intermolecular interaction in plant oils from refractive and density measurements

Andriyevsky, B.; Andriyevska, L.; Piecuch, T.

doi:10.1134/s0030400x10120180

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…The differences in refractive indexes are extremely small but statistically significant, with increasing CLA resulting in a slight increase (Table 3). Plant oils refractive indexes do increase with increasing intermolecular interaction [26], which may be due to conjugated dienes and trans,trans isomerism, in addition to elevated melting point and increased viscosity.…”

Section: Refractive Indexmentioning

confidence: 99%

Physicochemical Properties of Conjugated Linoleic Acid‐Rich Soy Oil

Ruan

Proctor

2013

J Americ Oil Chem Soc

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CLA-rich soy oil (CLARSO) has been produced by linoleic acid isomerization in soy oil TAG. The objective was to determine the physicochemical properties of the novel CLARSO relative to conventional refined bleached deodorized soy oil (RBDSO). Iodine value decreased in CLARSO samples despite unsaturation being unchanged, probably because conjugated double bonds in triacylglycerol (TAG) of CLARSO impede the complete addition of iodine. Thermal analysis by differential scanning calorimetry showed the melting point temperature increased with the increase in the CLARSO CLA concentration, and melting point broadening occurred in CLA contained samples. Dynamic viscosity of CLARSO conducted from 4 to 44°C increased with the increase in CLA concentration, relative to RBDSO. Greatest viscosity differences occurred at the lower temperatures. Refractive indices and density were not greatly affected. The change in physical properties was attributed to the increased intermolecular hydrophobic interaction force due to conjugated double bonds and trans,trans isomers, relative to RBDSO.

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Section: Refractive Indexmentioning

confidence: 99%