Nutritional composition and colour analysis of cholesterol-reduced egg yolk powder; [Komposisi nutrisi dan analisis warna serbuk kuning telur rendah-kolesterol]

Dietary cholesterol should be limited to less than 200 mg/day. A single large egg yolk contains approximately 275 mg of cholesterol. Thus, consumption of a single egg yolk exceeds the recommended daily intake of cholesterol. This study was focused on determination of the effect of addition of increa...

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Bibliographic Details
Published in:Malaysian Journal of Analytical Sciences
Main Author: In F.C.; Abdul Haiyee Z.; Hassan O.; Mustapha W.A.W.
Format: Article
Language:English
Published: Malaysian Society of Analytical Sciences 2016
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982255143&doi=10.17576%2fmjas-2016-2004-15&partnerID=40&md5=f2cd06c97d418fae9d89845da8293ec7
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Summary:Dietary cholesterol should be limited to less than 200 mg/day. A single large egg yolk contains approximately 275 mg of cholesterol. Thus, consumption of a single egg yolk exceeds the recommended daily intake of cholesterol. This study was focused on determination of the effect of addition of increasing amount of β-cyclodextrin (β-CD) to encapsulate cholesterol in egg yolk. The quality of cholesterol-reduced egg yolk powder was evaluated by determining its nutritional composition and colour analysis. Increasing amount of β-CD (0–15 mM) was added in liquid egg yolk and the encapsulated cholesterol in the form of precipitate was removed. The supernatant was dried and the end product; cholesterol-reduced egg yolk powder (CREYP) was analyzed for moisture content, total lipid, fatty acids content, protein and colour. There were no significant difference (p > 0.05) in term of total solid content. However, protein content of CREYP was significantly (p < 0.05) reduced up to 7 mM β-CD and no further significant reduction was noticed with further addition of β-cyclodextrin. The appearance of the powder became lighter in colour as validated using chromameter; L*, a*, b*, C* and h° values. The results obtained from this study indicate that cholesterol can be successfully removed from egg yolk. However, slight reduction in protein content was observed. Nutritional composition of CREYP was minimally affected with the removal of encapsulated cholesterol. Therefore, cholesterol-reduced egg yolk powder can be utilized as an essential ingredient in any egg yolk based products. © 2016, Malaysian Society of Analytical Sciences. All rights reserved.
ISSN:13942506
DOI:10.17576/mjas-2016-2004-15