Radical Scavenging Activity of Tertiary Butyl Hydroquinone and Assessment  of Stability of Palm Oil ( Elaeis guineensis ) by Ultrasonic Studies

Banu, Mujeeda

doi:10.15255/cabeq.2015.2185

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…The crude oil extracted from palm oil fruits is also rich in palmitic acid, β-carotene, and vitamin E, along with some undesirable compounds, such as phospholipids, free fatty acids (FFA), pigments, and proteins [5][6] . CPO is composed of a vast number of triglycerides (TAGs) and 6 % diglycerides (DAGs) that naturally consist of FFA 7 .…”

Section: Introductionmentioning

confidence: 99%

Ultrafiltration Membrane for Degumming of Crude Palm Oil-Isopropanol Mixture

Aryanti

Wardhani

Nafiunisa

2018

Chem.Biochem.Eng.Q.

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Ultrafiltration (UF) is a membrane technology that has been applied for crude palm oil (CPO) degumming. It is considered as an alternative for the conventional CPO degumming technology because of its lower energy consumption, no need for the addition of chemicals, and almost no loss of natural oil. In this research, we separated a CPO-isopropanol mixture via laboratory-made flat-sheet polyethersulfone (PES) UF. Flux profiles confirmed that the increase in the CPO concentration resulted in lower fluxes. However, increasing the temperature from 30 °C to 45 °C initially raised the flux, but it was further decreased when the feed temperature was raised from 40 °C to 45 °C. Using UF of the CPO-isopropanol mixture at crude oil concentrations of 30 % and 40 %, we were able to reject more than 99 % phospholipids and nearly 93 % phospholipids, respectively. However, the separation of free fatty acids using this process was ineffective due to the small size of free fatty acids. Through the evaluation of the blocking mechanism in the Hermia model, it was proposed that the standard and intermediate blocking were the dominant mechanisms of filtration of CPO at a concentration of 30 and 40 %, and 50 and 60 %, respectively.

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Section: Introductionmentioning

confidence: 99%

Ultrafiltration Membrane for Degumming of Crude Palm Oil-Isopropanol Mixture

Aryanti

Wardhani

Nafiunisa

2018

Chem.Biochem.Eng.Q.

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Rapid quantification of 3-monochloropropane-1,2-diol in deep-fat frying using palm olein: Using ATR-FTIR and chemometrics

Wong

Goh

Abas

et al. 2019

LWT

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Fourier transform infrared spectroscopy (FT-IR) was studied as an alternative technique for the estimation of the 3-monochloropropane-1,2-diol (3-MCPD) ester level in palm olein. The samples were the frying oils of potato chips with the addition of a synthetic or natural antioxidant. The same samples were evaluated by both the conventional method (GC-MS) and FTIR. Principal component analysis (PCA) was used to group the frying oils according to the level of the 3-MCPD esters. The results obtained by FTIR were consistent with the findings using an indirect determination method by GC-MS. Chemometric analysis was applied to correlate the content of 3-MCPD esters with the FTIR spectrum data. A partial least squares (PLS) model was able to predict the concentrations of 3-MCPD esters at the 95% confidence level with R2 values higher than 0.90.

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Radical Scavenging Activity of Tertiary Butyl Hydroquinone and Assessment of Stability of Palm Oil ( Elaeis guineensis ) by Ultrasonic Studies

Cited by 2 publications

References 33 publications

Ultrafiltration Membrane for Degumming of Crude Palm Oil-Isopropanol Mixture

Ultrafiltration Membrane for Degumming of Crude Palm Oil-Isopropanol Mixture

Rapid quantification of 3-monochloropropane-1,2-diol in deep-fat frying using palm olein: Using ATR-FTIR and chemometrics

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