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115863

EVALUATION OF DIFFERENT METHODS FOR DETERMINATION OF CHOLESTEROL IN SOME ANIMAL FOOD SOURCES

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Animal Hygiene, Husbandry, Production, Genetics, Economics, Nutrition and Food Control.

Abstract

A comparison was carried out between a simple method of High performance Liquid Chromatography (HPLC), Gas Chromatography (GC), enzymatic and colorimetric methods for determination of cholesterol levels. Linearity, accuracy, precision and detection limits were evaluated for HPLC and the other analytical methods. The results revealed that the HPLC method  recorded the best linearity  (correlation coefficient, r = 0.99992), followed by the GC (r = 0.99874), the enzymatic (r =0.99469) and the colorimetric method (r = 0.99316). The accuracy of the obtained data were calculated based on recovery of the cholesterol added to butter at three concentrations, (75, 150 and 225 mg/100g). At the low concentration (75 mg/100g), the best recovery was estimated by HPLC. In contrast, the GC and the enzymatic methods showed greater recovery at the other two concentrations when compared with HPLC. However, the recovery which has been obtained by colorimetric method was above the limit, for the three concentrations. The precision results showed no significant differences when the cholesterol was determined within 4 days by HPLC, GC and colorimetric methods. However, when it was determined by the enzymatic method the precision results recorded significant differences within 2 days. The HPLC method was very sensitive to low concentration of cholesterol (detection limit 24 µ/µL) followed by the GC (detection limit 49 µ/µL), the colorimetric (detection limit 9 µg/µL) and the enzymatic method (detection limit 11 µg/µL). The HPLC method has been successfully applied for quantitative assay of cholesterol in a variety of animal food sources.

DOI

10.21608/kvmj.2007.115863

Keywords

Cholesterol, HPLC, GC, colorimetric, enzymatic, animal sources

Authors

First Name

Eman Sh. M.

Last Name

Laz

MiddleName

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Affiliation

Animal Health Research Institute

Email

-

City

-

Orcid

-

First Name

Nehad A.

Last Name

Bardrawy

MiddleName

-

Affiliation

Animal Health Research Institute

Email

-

City

-

Orcid

-

Volume

5

Article Issue

1

Related Issue

16824

Issue Date

2007-04-01

Receive Date

2007-01-01

Publish Date

2007-04-01

Page Start

102

Page End

121

Print ISSN

1687-1456

Online ISSN

2682-2954

Link

https://kvmj.journals.ekb.eg/article_115863.html

Detail API

https://kvmj.journals.ekb.eg/service?article_code=115863

Order

7

Type

Original Article

Type Code

1,064

Publication Type

Journal

Publication Title

Kafrelsheikh Veterinary Medical Journal

Publication Link

https://kvmj.journals.ekb.eg/

MainTitle

EVALUATION OF DIFFERENT METHODS FOR DETERMINATION OF CHOLESTEROL IN SOME ANIMAL FOOD SOURCES

Details

Type

Article

Created At

22 Jan 2023