The Relationship Between Electro-Optics Gradient and Fatty Acids Composition in a New Investigation on Palm Oil Quality

Firdausi, K. Sofjan; Sugito, Heri; Ekasari,; Rahmawati, Henik; Putranto, Ari Bawono

doi:10.1166/asl.2017.9687

Cited by 15 publications

(14 citation statements)

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“…Table 1 show the samples used in the experiment. The standard experimental procedure of electrooptics polarization was referring to the Firdausi et al [1]. Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Unfortunately, the electro-optics so far has not been recognized as one of a parameter for standard evaluation of cooking oil quality. As we have found that the change of electro-optics polarization provides cooking oil quality indicator and for certain purposes it is very useful for examination of preliminary quality [1][2][4][5][6]. In our previous works [1,2], the physical variable represents the quality indicator is the change of polarization angle in  or electro-optics gradient in /kV, which is indicated by increasing saturated fatty acids or decreasing polyunsaturated fatty acids in oil sample.…”

Section: Introductionmentioning

confidence: 98%

“…As we have found that the change of electro-optics polarization provides cooking oil quality indicator and for certain purposes it is very useful for examination of preliminary quality [1][2][4][5][6]. In our previous works [1,2], the physical variable represents the quality indicator is the change of polarization angle in  or electro-optics gradient in /kV, which is indicated by increasing saturated fatty acids or decreasing polyunsaturated fatty acids in oil sample. For preliminary test of oil quality, the change of electro-optics polarization seems powerful in comparison to the other methods [1,4,6].…”

Section: Introductionmentioning

confidence: 98%

“…According to the best of our knowledge, there are only a few electro-optics reports that measure polarization changes directly to a sample, especially in cooking oil. In our previous reports, we have found that by using electro-optics effect on cooking oils [1][2][3], it can increase the change of polarization angle or well-known as the change of optical activity.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous works [1,2], the physical variable represents the quality indicator is the change of polarization angle in  or electro-optics gradient in /kV, which is indicated by increasing saturated fatty acids or decreasing polyunsaturated fatty acids in oil sample. For preliminary test of oil quality, the change of electro-optics polarization seems powerful in comparison to the other methods [1,4,6].…”

Section: Introductionmentioning

confidence: 99%

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Determination of relative dissociation energy from electro-optics as a new single-proposed parameter of vegetable oil quality

et al. 2019

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In this report, we study the electro-optics effect on cooking oil to obtain the relative dissociation energy as a new single proposed parameter of oil quality. The sample was canola oil which had been heated in 0.5 hours, 2 hours and 4 hours. The light source used in the experiment was a green pointer laser with a wave length of 532 nm. The sample was applied to a potential difference from 0 to 9 kV to obtain the electro-optics effect in form of the change of the polarization angle Dq as function of potential difference DV. The relative dissociation energy was obtained from the fitting data of the relative Lenard-Jones potential energy curves represented by change of polarization per unit change of potential difference, Dq/DV. The result shows that the relative dissociation energy is reduced as the oil quality decreased after heated. The relative dissociation energy provides simple physical understanding about electro-optics effect on cooking oils. The study of electro-optics polarization that represents relative Lenard-Jones potential energy is a new but somewhat intuitive, which can be further improved and emphasized for grouping, mapping, and determining various cooking oil quality and halal food due to the lard contamination.

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“…Table 1 show the samples used in the experiment. The standard experimental procedure of electrooptics polarization was referring to the Firdausi et al [1]. Fig.…”

Section: Methodsmentioning

confidence: 99%