71368

Extraction, Purification and Characterization of Transglutaminase from Silver Beet Leaves and its Effect on Sensory, Chemical and Rheological Properties of Kareish Cheese

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Last updated: 04 Jan 2025

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Abstract

Strategy in transgluaminase (TGase) extracted from silver beet leaves (Beta vulgaris L.) performed by three stages. Ammonium sulfate precipitation (40-80%) is an important technique as an initial step in TGase purification, followed by an impure TGase sample is loaded into 2-(Diethylamino)ethyl ether sephadex A50. The final purification step was carried out by eluting dialyzed fractions into Sephadex G-100. The purified TGase was successfully purified by three purification steps with 224.2 U/mg of TGase specific activity, 3.4 fold increase in purification and 20.33% yields. The optimum temperature and pH of silver beet leaves TGase were 50°C and 5.0, respectively. The TGase completely lost its activity after 15 min at 80°C, however  recovery of  TGase  after exposure to sodium chloride concentrations ranging from 2-6% does not affect its activity. The influence of different concentrations (5, 7.5 and 10U/g protein) of TGase on chemical, textural and sensorial of Kareish over storage time were detected. The yield and moisture content were reached the maximum values in cheese treated with TGase (10Ug-1protein), in addition to the same treatment received maximum average scores in sensory evaluation. The concentration of TGase is negatively proportional with the gumminess, adhesiveness and hardnesss values of resulted cheese.

DOI

10.21608/jfds.2019.71368

Keywords

transgluaminase, silver beet leaves – Kareish cheese, Sensory evaluation

Authors

First Name

M.

Last Name

Darwish

MiddleName

S.

Affiliation

Dairy Department – Faculty of Agriculture – Mansoura University

Email

msamir@mans.edu.eg

City

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Orcid

-

First Name

Asmaa

Last Name

El-Awady

MiddleName

A.

Affiliation

Dairy Department – Faculty of Agriculture – Mansoura University

Email

-

City

-

Orcid

-

First Name

M.

Last Name

Mostafa

MiddleName

S.

Affiliation

Dairy Department – Faculty of Agriculture – Mansoura University

Email

-

City

-

Orcid

-

Volume

10

Article Issue

12

Related Issue

10854

Issue Date

2019-12-01

Receive Date

2020-02-16

Publish Date

2019-12-01

Page Start

495

Page End

501

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_71368.html

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https://jfds.journals.ekb.eg/service?article_code=71368

Order

8

Type

Original Article

Type Code

886

Publication Type

Journal

Publication Title

Journal of Food and Dairy Sciences

Publication Link

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

MainTitle

Extraction, Purification and Characterization of Transglutaminase from Silver Beet Leaves and its Effect on Sensory, Chemical and Rheological Properties of Kareish Cheese

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Article

Created At

22 Jan 2023