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78877

Antioxidant and Antimicrobial Activities of Enzymatic Hydrolysates of Camelʼs Milk Whey Protein and Casein

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Last updated: 04 Jan 2025

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Abstract

Healthy skimmed camel milk's, casein and whey proteins precipitated and freeze dried, and were treated with 1% of five proteolytic microbial renin, pepsin, trypsin, collagenase and microbial protease. Hydrolysates were analyzed for pH, degree hydrolysis and scavenging properties. The pH decreased, and the degree of protein hydrolysis increased reaching 16.22, 17.0, 22.12, 22.88, 15.85, 16.23, 15.68, 16.08, 23.75, 24.44 for casein and whey after 8 hours of By increasing the proteolysis The inhibition % of DPPH increased by increasing the proteolysis to 21.4, 22.9, 20.18, 25.2, 23.2 for casein hydrolysate and 34, 31, 30, 30, 28.5 for whey proteins hydrolystes after 8 hours at 37 ° C. Whey proteins resulted in higher scavenging properties than casein under the same conditions. Both casein and whey protein hydrolysates had a significant antibacterial properties, against undigested or digested protein. The highest antibacterial activity The undigested whey proteins and collagenase digested whey protein and microbial protease digested casein characterized with the highest antibacterial activities(18.0, 17.0 and 20.0 mm) for Staphylococcus aureus, Streptococcus pyogenes, and Escherichia colirespectively. All of the digested enzymes were of antifungal effect against Aspergillus flavus and Aspergillus fumigates, but of no effect against Aspergillus niger. Casein was found on antifungal against Aspergillus flavus.Only undigested casein,collagenaseand trypsin digested casein were also found of anti-fungal activity against Aspergillus niger, which recorded 9.0, 8.0 and 8.0. respectively.

DOI

10.21608/jfds.2020.78877

Keywords

casein, whey protein, camel milk, Antimicrobial, antioxidant

Authors

First Name

A.

Last Name

Abd EL Rahim

MiddleName

M.

Affiliation

Dairy Department, Faculty of Agriculture, Assiut University.

Email

mo_ali_3@yahoo.com

City

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Orcid

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Volume

11

Article Issue

2

Related Issue

11795

Issue Date

2020-02-01

Receive Date

2020-03-24

Publish Date

2020-02-01

Page Start

45

Page End

50

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_78877.html

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https://jfds.journals.ekb.eg/service?article_code=78877

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Original Article

Type Code

886

Publication Type

Journal

Publication Title

Journal of Food and Dairy Sciences

Publication Link

https://jfds.journals.ekb.eg/

MainTitle

Antioxidant and Antimicrobial Activities of Enzymatic Hydrolysates of Camelʼs Milk Whey Protein and Casein

Details

Type

Article

Created At

22 Jan 2023