NDLI: An Effective Ostrich Oil Bleaching Technique Using Peroxide Value as an Indicator

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An Effective Ostrich Oil Bleaching Technique Using Peroxide Value as an Indicator

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An Effective Ostrich Oil Bleaching Technique Using Peroxide Value as an Indicator

Content Provider	MDPI
Author	Palanisamy, Uma Devi Sivanathan, Muniswaran Radhakrishnan, Ammu Kutty Haleagrahara, Nagaraja Subramaniam, Thavamanithevi Chiew, Gan Seng
Abstract	Ostrich oil has been used extensively in the cosmetic and pharmaceutical industries. However, rancidity causes undesirable chemical changes in flavour, colour, odour and nutritional value. Bleaching is an important process in refining ostrich oil. Bleaching refers to the removal of certain minor constituents (colour pigments, free fatty acid, peroxides, odour and non-fatty materials) from crude fats and oils to yield purified glycerides. There is a need to optimize the bleaching process of crude ostrich oil prior to its use for therapeutic purposes. The objective of our study was to establish an effective method to bleach ostrich oil using peroxide value as an indicator of refinement. In our study, we showed that natural earth clay was better than bentonite and acid-activated clay to bleach ostrich oil. It was also found that 1 hour incubation at a 150 °C was suitable to lower peroxide value by 90%. In addition, the nitrogen trap technique in the bleaching process was as effective as the continuous nitrogen flow technique and as such would be the recommended technique due to its cost effectiveness.
File Size	115712
Ending Page	5719
Page Count	11
Starting Page	5709
File Format	PDF
e-ISSN	14203049
DOI	10.3390/molecules16075709
Journal	Molecules
Issue Number	7
Volume Number	16
Language	English
Publisher Date	2011-07-05
Access Restriction	Open
Subject Keyword	crude ostrich oil temperature time peroxide value clay
Content Type	Text
Resource Type	Article

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