Microstructure and structural transition in coconut oil microemulsion using semidifferential electroanalysis

Mo, Chunsheng; Li, Xiaoge

doi:10.1016/j.jcis.2007.03.030

Cited by 12 publications

(8 citation statements)

References 40 publications

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“…The working electrode area was determined using cyclic voltammetry experiments on a reversible system (4 mM K 4 Fe(CN) 6 in 1 M KCl). By use of the diffusion coefficient D = 6.3 × 10 −10 m 2 s −1 [20], the electrode area is A = 3.29 × 10 −6 m 2 , which is consistent with the reported value [21]. The potential is scanned between −1 and +1 V, and the sweep rate range used is 0.05 to 0.5 V s −1 in this work.…”

Section: Micelle Diffusion Coefficient By Cyclic Voltammeter Measuremsupporting

confidence: 86%

Micellization and synergistic interaction of binary surfactant mixtures based on sodium nonylphenol polyoxyethylene ether sulfate

Chen¹,

Deng²,

Li³

2008

Journal of Colloid and Interface Science

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Section: Micelle Diffusion Coefficient By Cyclic Voltammeter Measuremsupporting

confidence: 86%

Micellization and synergistic interaction of binary surfactant mixtures based on sodium nonylphenol polyoxyethylene ether sulfate

Chen¹,

Deng²,

Li³

2008

Journal of Colloid and Interface Science

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“…With GC-MS library identification, the major fatty acids in the VCO prepared by both methods were myristic acid (35-38%), lauric acid (22-30%) and palmitic acid (23-24%). It was noted that the content of lauric acid in this study was lower than that reported in the published literature, which was about 50% [3,[17][18][19]. This variation is probably due to the differences in soil types, weather conditions, geological location and extraction method.…”

Section: Preparation Of Virgin Coconut Oil (Small Scale Batch)contrasting

confidence: 58%

Characterization of Aromatherapy Massage Oils Prepared from Virgin Coconut Oil and Some Essential Oils

Songkro

Sirikatitham

Sungkarak

et al. 2009

J Americ Oil Chem Soc

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The aim of this study was to characterize aromatherapy massage oils prepared from virgin coconut oil (VCO) and some essential oils. VCO extracted from fresh coconut endosperm by a centrifugation method, which was the most effective method to prepare VCO, was composed mainly of saturated fatty acids, in particular myristic acid. Three essential oils (lemon, eucalyptus and lavender oils) at concentrations of 1, 3 and 5% w/w were blended with the VCO to prepare massage oils. Physical and chemical properties as well as microbial analysis of the massage oils were assessed to evaluate quality characteristics of the preparations. Results showed that types and concentrations of essential oils used somewhat affected viscosity, refractive index and three chemical characteristics (acid, peroxide, and iodine values) associated with oxidative stability of the massage oils. Generally the rank order of acid, peroxide and iodine values of the freshly prepared massage oils appeared to be lemon oil [ lavender oil [ eucalyptus oil. The results of a accelerated storage stability study (45°C, 4 months) clearly showed a dramatic increase in both acid and peroxide values of VCO and the blended massage oils compared to initial values, whereas the iodine values of these preparations decreased slightly. The plain VCO and the blended massage oils did not exhibit antimicrobial activity on the test microorganisms and were free from microbial contamination.

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“…Various electrochemical processes, such as redox reactions with reduced and oxidised species present in the same phase [6,14,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35], adsorption on surfaces of electrodes [36][37][38], electrodeposition [39][40][41][42][43][44][45][46][47][48] or electrodissolution [49][50][51] were analysed by means of semi-differentiation or semi-integration. The most extensive mathematical treatment related to these methods was applied to the electrochemical reactions were both oxidised and reduced form are soluble in the electrolyte phase and their transport proceeds under conditions of semi-infinite linear diffusion [4].…”

Section: Introductionmentioning

confidence: 99%

Semi-differential analysis of irreversible voltammetric peaks

Grdeń

2016

J Solid State Electrochem

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Voltammetric peaks obtained by simulation of electrochemical reactions under conditions of linear semi-infinite diffusion with an irreversible electron transfer process are analysed using a semi-differentiation procedure. Obtained semi-derivative peaks, separated or overlapped, are fitted with appropriate mathematical functions. The functions used for data fitting include a function describing symmetrical peaks, proposed by several authors for fitting irreversible semiderivative peaks, and two alternative functions that express asymmetric shape of the irreversible semi-derivative signals. When applied to the overlapped irreversible semi-derivative peaks, the latter two functions allow calculating certain electrochemical parameters with a better accuracy as compared with the function derived for the symmetrical peaks.

show abstract

Microstructure and structural transition in coconut oil microemulsion using semidifferential electroanalysis

Cited by 12 publications

References 40 publications

Micellization and synergistic interaction of binary surfactant mixtures based on sodium nonylphenol polyoxyethylene ether sulfate

Micellization and synergistic interaction of binary surfactant mixtures based on sodium nonylphenol polyoxyethylene ether sulfate

Characterization of Aromatherapy Massage Oils Prepared from Virgin Coconut Oil and Some Essential Oils

Semi-differential analysis of irreversible voltammetric peaks

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