118200

Physicochemical, Microbiological Evaluation of Probiotic Milk Beverages Fortified with Concentrated Apple Juice

Article

Last updated: 03 Jan 2025

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Abstract

The preparation of dairy beverages rich in probiotic microorganism and fortified with concentrated apple juice (CAJ) is the goal of this study. Culture (ABT-5) contained Streptococcus thermophilus, Lactobacillus acidophilus, and Bifidobacterium bifidium were used to prepare the dairy beverages. Sweetened cow milk which inoculated with cultures (0.1g/L of milk) was used as a control beverage sample (C). Samples were fortified with 8, 10 and 12% (w/w) CAJ to create treatments T1, T2, and T3, respectively. The chemical, microbial and sensory evaluation of samples were acheived fresh and during storage at 5±2ºC. The results revealed that the pH values decreased, but the total solids, ash, water-soluble nitrogen (WSN), and total volatile fatty acid (TVFA) contents increased as the level of CAJ increased. During the storage period ; the pH value also decreased, while WSN and TVFA in all dairy beverages increased. Fat contents showed slight increases between control and fortified samples, however, slight decrease was noticed in their values during storage period. The counts of St. thermophilus and Bifidbacterium bifidium in fortified samples were decreased as CAJ ratio increased and as storage period progressed, while the counts of L. acidophilus were increased as the ratio of CAJ increased; else, they decreased as storage period increased. Organoleptic properties of samples fortified with CAJ during 14 days of storage recorded obvious variations in all evaluated properties. The total acceptability indicated that T2 samples (10% CAJ) had the highest degrees and possessed favorite properties with probiotic and healthy behavior.

DOI

10.21608/ejfs.2020.32475.1058

Keywords

Dairy beverages, probiotic, Apple juice

Authors

First Name

mohamed

Last Name

hammad

MiddleName

nour

Affiliation

Dairy Department, Faculty of Agriculture, Damietta University, Damietta, Egypt.

Email

mnour20002005@yahoo.com

City

-

Orcid

-

First Name

Hayam

Last Name

Abbas

MiddleName

-

Affiliation

Dairy Science and Technology, National Research Centre, Egypt

Email

prof.hayamabbas@yahoo.com

City

-

Orcid

-

First Name

Samaa

Last Name

El-Sayed

MiddleName

M.

Affiliation

Food Science & Technology Department, Faculty of Home Economic, Al-Azhar University, Tanta, Egypt

Email

dr.samaamahmoud@yahoo.com

City

tanta

Orcid

-

Volume

48

Article Issue

2

Related Issue

19636

Issue Date

2020-12-01

Receive Date

2020-06-11

Publish Date

2020-12-01

Page Start

365

Page End

376

Print ISSN

1110 -0192

Online ISSN

2636-4034

Link

https://ejfs.journals.ekb.eg/article_118200.html

Detail API

https://ejfs.journals.ekb.eg/service?article_code=118200

Order

15

Type

Original Article

Type Code

597

Publication Type

Journal

Publication Title

Egyptian Journal of Food Science

Publication Link

https://ejfs.journals.ekb.eg/

MainTitle

Physicochemical, Microbiological Evaluation of Probiotic Milk Beverages Fortified with Concentrated Apple Juice

Details

Type

Article

Created At

22 Jan 2023