Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof

A spectrophotometric based method was optimized to determine the changes in alkaline contaminant materials (ACM) in palm oil, corn oil and sunflower oil during 5 consecutive days of frying. The maximum wavelengths of sodium palmitate in palm oil was obtained at 592nm and for corn oil and sunflower o...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohamad Yusof, Fadzillah Haryati
Format:	Thesis
Language:	English
Published:	2003
Online Access:	https://ir.uitm.edu.my/id/eprint/101772/1/101772.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.101772
record_format	uketd_dc
spelling	my-uitm-ir.1017722024-09-13T08:07:38Z Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof 2003 Mohamad Yusof, Fadzillah Haryati A spectrophotometric based method was optimized to determine the changes in alkaline contaminant materials (ACM) in palm oil, corn oil and sunflower oil during 5 consecutive days of frying. The maximum wavelengths of sodium palmitate in palm oil was obtained at 592nm and for corn oil and sunflower oil the maximum wavelength of sodium oleate was obtained at 596nm. The correlation coefficient (R2) of the curve for palm oil, corn oil and sunflower oil were 0.9548, 0.8952 and 0.9846, respectively. The results showed that there was a significant difference (p<0.05) in ACM content for palm oil, corn oil and sunflower oil during 5 consecutive days of frying. The amount of ACM in 5 consecutive days of frying for palm oil, corn oil and sunflower oil calculated by the regression equation increased from Oppm to 168ppm, Oppm to 5.2ppm and Oppm to 4.8ppm, respectively. The visual colour in Standard solution for palm oil, corn oil and sunflower oil ranged from yellow (Omg/lOOg) to dark green (50mg/100g). The values of Hunter 'L' for palm oil, corn oil and sunflower oil ranged from 56.46 to 82.09, 61.19 to 74.17 and 51.29 to 72.70, respectively. The values of Hunter 'a' for palm oil, corn oil and sunflower oil ranged from -7.24 to -2.03, -1.78 to -4.91 and -0.12 to -4.65, respectively. The values of Hunter 'b' for palm oil, corn oil and sunflower oil was ranged from 34.72 to 58.77, 50.48 to 57.14 and 35.65 to 59.83, respectively. 2003 Thesis https://ir.uitm.edu.my/id/eprint/101772/ https://ir.uitm.edu.my/id/eprint/101772/1/101772.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Applied Science
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
description	A spectrophotometric based method was optimized to determine the changes in alkaline contaminant materials (ACM) in palm oil, corn oil and sunflower oil during 5 consecutive days of frying. The maximum wavelengths of sodium palmitate in palm oil was obtained at 592nm and for corn oil and sunflower oil the maximum wavelength of sodium oleate was obtained at 596nm. The correlation coefficient (R2) of the curve for palm oil, corn oil and sunflower oil were 0.9548, 0.8952 and 0.9846, respectively. The results showed that there was a significant difference (p<0.05) in ACM content for palm oil, corn oil and sunflower oil during 5 consecutive days of frying. The amount of ACM in 5 consecutive days of frying for palm oil, corn oil and sunflower oil calculated by the regression equation increased from Oppm to 168ppm, Oppm to 5.2ppm and Oppm to 4.8ppm, respectively. The visual colour in Standard solution for palm oil, corn oil and sunflower oil ranged from yellow (Omg/lOOg) to dark green (50mg/100g). The values of Hunter 'L' for palm oil, corn oil and sunflower oil ranged from 56.46 to 82.09, 61.19 to 74.17 and 51.29 to 72.70, respectively. The values of Hunter 'a' for palm oil, corn oil and sunflower oil ranged from -7.24 to -2.03, -1.78 to -4.91 and -0.12 to -4.65, respectively. The values of Hunter 'b' for palm oil, corn oil and sunflower oil was ranged from 34.72 to 58.77, 50.48 to 57.14 and 35.65 to 59.83, respectively.
format	Thesis
qualification_level	Bachelor degree
author	Mohamad Yusof, Fadzillah Haryati
spellingShingle	Mohamad Yusof, Fadzillah Haryati Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
author_facet	Mohamad Yusof, Fadzillah Haryati
author_sort	Mohamad Yusof, Fadzillah Haryati
title	Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
title_short	Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
title_full	Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
title_fullStr	Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
title_full_unstemmed	Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof
title_sort	spectrophotometric determination of alkaline contaminant materials (acm) in frying oil / fadzillah haryati mohamad yusof
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Science
publishDate	2003
url	https://ir.uitm.edu.my/id/eprint/101772/1/101772.pdf
_version_	1811769189430460416

Spectrophotometric determination of alkaline contaminant materials (ACM) in frying oil / Fadzillah Haryati Mohamad Yusof

Similar Items