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2584

Effects of Storage on Some Physico-Chemical Characteristics of UHT Milk Stored at Different Temperature

Article

Last updated: 01 Jan 2025

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-

Tags

Dairy science

Abstract

Raw milk for UHT processing at commercial dairy plant was collected from well managed dairy farms. The milk was processed by direct system and heated at 143-145ºC for 3-5S, then aseptically packed. Three different batches of UHT milk were used in this study. Samples of UHT milk were analysed after processing and during storage at 4, 22 and 37ºC ± 2°C for 6 months. The changes in pH, acidity as lactic acid, total solids, viscosity, fat content, electrical conductivity, specific gravity non-protein nitrogen, non-casein nitrogen total and soluble calcium, magnesium, citrate, and phosphorus during storage were studed. The samples were analysed at 0,30,60,90,120,150 and 180 days for the physico-chemical proportes of milk. Values indicate an increase in acidity,viscocity,NCN,NPN, soluble calcium magnesium citrate and phosphate.The results showed after statistically analysis that there is a significant affect of storage period and storage temperature  on pH, titratable acidity, non –protein- nitrogen, non-casein nitrogen, viscosity, soluble and colloidal calcium and phosphate, soluble magnesium and citrate. There are a significant decrease in pH, electrical conductivity, by increasing storage period, with increasing in acidity ratio, non- protein- non-casein nitrogen and viscosity.
 
 
 
 

DOI

10.21608/asejaiqjsae.2014.2584

Authors

First Name

Aldubhany

Last Name

T.A. W.

MiddleName

-

Affiliation

Alexandria University, Faculty of Agriculture, Department of Dairy Science and Technology

Email

-

City

-

Orcid

-

First Name

Gouda

Last Name

Effat

MiddleName

-

Affiliation

Alexandria University, Faculty of Agriculture, Department of Dairy Science and Technology

Email

-

City

-

Orcid

-

First Name

Khattab

Last Name

A

MiddleName

-

Affiliation

Alexandria University, Faculty of Agriculture, Department of Dairy Science and Technology

Email

-

City

-

Orcid

-

First Name

Dabour

Last Name

Nasra

MiddleName

-

Affiliation

Alexandria University, Faculty of Agriculture, Department of Dairy Science and Technology

Email

-

City

-

Orcid

-

Volume

35

Article Issue

April-June

Related Issue

376

Issue Date

2014-04-01

Receive Date

2014-05-05

Publish Date

2014-06-30

Page Start

107

Page End

114

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 35_Issue April-June_Pages 107-114.pdf

PDF . 278.9kB

Link

https://asejaiqjsae.journals.ekb.eg/article_2584.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=2584

Order

6

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Effects of Storage on Some Physico-Chemical Characteristics of UHT Milk Stored at Different Temperature

Details

Type

Article

Created At

22 Jan 2023