DSC as a valuable tool for the evaluation of adulteration oils and fats

Authentication is part of quality assessment to maintain purity standards in oils and fats. It is highly useful for oils and fats as it helps to combat adulteration practices taking place in trade and industries. Among the different analytical techniques, DSC is a valuable tool for establishing iden...

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Main Author:	Marikkar, Mohammed Nazrim
Other Authors:	Emma , Chivaro
Format:	Book Chapter
Language:	English
Published:	CRC Press 2015
Subjects:	QD Chemistry
Online Access:	http://irep.iium.edu.my/44399/ http://irep.iium.edu.my/44399/ http://irep.iium.edu.my/44399/11/DSC-Nazir-Marikkar2-Completed-NEW2.pdf

id	iium-44399
recordtype	eprints
spelling	iium-443992016-07-27T00:23:30Z http://irep.iium.edu.my/44399/ DSC as a valuable tool for the evaluation of adulteration oils and fats Marikkar, Mohammed Nazrim QD Chemistry Authentication is part of quality assessment to maintain purity standards in oils and fats. It is highly useful for oils and fats as it helps to combat adulteration practices taking place in trade and industries. Among the different analytical techniques, DSC is a valuable tool for establishing identity of pure oils and fats for authentication purposes. It is nondestructive technique and works with minimal sample preparation. DSC analyses of palmitic, lauric, and oleic oils can provide well-defined thermal curves, which can be compiled as a data base to become a reference for investigations leading to detection of adulterations. As DSC curves of plant oils and fats differ considerably from those of animal fats, adulterations in plant oils and fats caused by animal fats can be detected easily. There is basis for detection of adulteration qualitatively, if significant deviations are noticed in the DSC curve of a particular oil or fat with respect to that of the reference authentic sample. However, based on the characteristic composition of individual oil and fat, the detection approaches and limits of detection for either LD or BF differ considerably. DSC could also be used effectively for quantification of adulterations as DSC variables associated with adulteration peaks were found to show high correlation with the increasing levels of adulteration. For most oils, predictive models for estimation of lard adulteration can be obtained using stepwise multiple linear regression (SMLR) analysis with % LD (adulteration level) as the dependent variable and DSC parameters (peak area, A; peak height, HT; and peak onset, ON) of adulteration peak as independent variables. CRC Press Emma , Chivaro 2015 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/44399/11/DSC-Nazir-Marikkar2-Completed-NEW2.pdf Marikkar, Mohammed Nazrim (2015) DSC as a valuable tool for the evaluation of adulteration oils and fats. In: Differential Scanning Calorimetry: Applications in Fats and Oils Technology. CRC Press, United States of America, pp. 27-48. ISBN 139781466591523 https://www.crcpress.com/Differential-Scanning-Calorimetry-Applications-in-Fat-and-Oil-Technology/Chiavaro/9781466591523#googlePreviewContainer
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Marikkar, Mohammed Nazrim DSC as a valuable tool for the evaluation of adulteration oils and fats
description	Authentication is part of quality assessment to maintain purity standards in oils and fats. It is highly useful for oils and fats as it helps to combat adulteration practices taking place in trade and industries. Among the different analytical techniques, DSC is a valuable tool for establishing identity of pure oils and fats for authentication purposes. It is nondestructive technique and works with minimal sample preparation. DSC analyses of palmitic, lauric, and oleic oils can provide well-defined thermal curves, which can be compiled as a data base to become a reference for investigations leading to detection of adulterations. As DSC curves of plant oils and fats differ considerably from those of animal fats, adulterations in plant oils and fats caused by animal fats can be detected easily. There is basis for detection of adulteration qualitatively, if significant deviations are noticed in the DSC curve of a particular oil or fat with respect to that of the reference authentic sample. However, based on the characteristic composition of individual oil and fat, the detection approaches and limits of detection for either LD or BF differ considerably. DSC could also be used effectively for quantification of adulterations as DSC variables associated with adulteration peaks were found to show high correlation with the increasing levels of adulteration. For most oils, predictive models for estimation of lard adulteration can be obtained using stepwise multiple linear regression (SMLR) analysis with % LD (adulteration level) as the dependent variable and DSC parameters (peak area, A; peak height, HT; and peak onset, ON) of adulteration peak as independent variables.
author2	Emma , Chivaro
author_facet	Emma , Chivaro Marikkar, Mohammed Nazrim
format	Book Chapter
author	Marikkar, Mohammed Nazrim
author_sort	Marikkar, Mohammed Nazrim
title	DSC as a valuable tool for the evaluation of adulteration oils and fats
title_short	DSC as a valuable tool for the evaluation of adulteration oils and fats
title_full	DSC as a valuable tool for the evaluation of adulteration oils and fats
title_fullStr	DSC as a valuable tool for the evaluation of adulteration oils and fats
title_full_unstemmed	DSC as a valuable tool for the evaluation of adulteration oils and fats
title_sort	dsc as a valuable tool for the evaluation of adulteration oils and fats
publisher	CRC Press
publishDate	2015
url	http://irep.iium.edu.my/44399/ http://irep.iium.edu.my/44399/ http://irep.iium.edu.my/44399/11/DSC-Nazir-Marikkar2-Completed-NEW2.pdf
first_indexed	2023-09-18T21:03:07Z
last_indexed	2023-09-18T21:03:07Z
_version_	1777410756162093056

DSC as a valuable tool for the evaluation of adulteration oils and fats

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