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117009

Preparation of Functional Probiotic Dairy Beverages fortified with Pomegranate Juice Concentrate.

Article

Last updated: 22 Jan 2023

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Abstract

The main target of this study is preparing probiotic dairy beverage or drinkable yogurt fortified with Pomegranate Juice concentrate (PJC). Quality evaluation and microbiological examination of the probiotic dairy beverages using PJC is achieved. Three ratios of PJC were used (0.8, 1.0 and 1.2%; w/w) vs. control with addition of 5% sugar to apply four treatments using cow milk. Culture contained Lactobacillus acidophilus LA-5 (A), Bifidobacterium bifidium, and Streptococcus thermophiles were used. All resultant beverages samples were stored in refrigerator at 5-7°C for 14 days and were analyzed when fresh, after 7 and 14 days of storage period. The results indicated that the pH values of the beverages fortified with PJC was decreased while the acidity was increased with supplementation of PJC and during 14 days of storage at 5-7°C. The levels of TS, WSN and Ash contents were increased as the proportion of fortification increased. Fat contents showed no clear differences between control and treatments where they contained the same ratio. The values of TN were increased as the level of PJC increased, while their values were decreased through the storage period. The TVFA levels were clearly increased as both fortification ratio and storage period increased. Microbiological examination data revealed that St. thermophiles, L. acidophilus and Bifidbacterium bifidium counts in fortified samples were decreased as PJC ratio increased and as storage period progressed rather than control. The organoleptic properties of fortified samples showed that the color & appearance degrees were low in treated samples rather than control. However, T1 and T2 possessed the favorite color in treated samples. The scores for body & texture were clear varied either in treated samples or stored samples .Flavor scores indicated that sample T2 had the favorite flavor. The total acceptability indicated that control samples had the highest degrees followed by T2.

DOI

10.21608/ejfs.2020.31951.1057

Keywords

dairy, beverages, pomegranate

Authors

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

Mohamed

Last Name

Hammad

MiddleName

Nour

Affiliation

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

Email

mnour20002005@gmail.com

City

Damiatta

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

2020-06-09

Publish Date

2020-12-01

Page Start

303

Page End

313

Print ISSN

1110 -0192

Online ISSN

2636-4034

Link

https://ejfs.journals.ekb.eg/article_117009.html

Detail API

https://ejfs.journals.ekb.eg/service?article_code=117009

Order

10

Type

Original Article

Type Code

597

Publication Type

Journal

Publication Title

Egyptian Journal of Food Science

Publication Link

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

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Article

Created At

22 Jan 2023