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42412

REDUCING CHILLING INJURIES OF PONKAN TANGARINE FRUITS DURING DISINFESTATION WITH COLD QUARANTINE TREATMENT BY USING SOME HEAT WATER TREATMENTS AND IMAZYLIL

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Last updated: 22 Jan 2023

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Abstract

Two experiments were conducted during 2009 and 2010 seasons at the Post-harvest Laboratory of Horticulture Department, Faculty of Agriculture, Zagazig University to assess the effectiveness of imazylil (IMZ) and hot water treatments (HWT) , as follow : 1- Fruits were dipped in water (20oC ) for 5min., 2- Fruits were dipped in IMZ 1000 ppm  (20oC )  for 5 min.,  3- Fruits were dipped in hot water (52oC) for 2 min., 4- Fruits were dipped in hot water (60oC) for 20 Sec. and 5- Fruits were dipped in hot water (70oC) for 10 Sec. as well as three cold storage periods under 2oC (as a cold quarantine disinfestation) and 90 – 95% relative humidity as follow : 10, 20 and 30 days on Ponkan tangarine fruits and shelf life period after 3 and 6 days.   Advancing storage period caused progressive increment in chilling injury (CI), fruit decay (FD), heat injury % (HI),  fresh weight loss (FWL %) and acidity %  of samples taken during cold storage as well as FWL %, Pulp % juice %, juice volume/kg fruits, peel firmness, acidity %, TSS %, and technological index (TI) during shelf life periods. On the contrary, increasing cold storage period decreased pulp firmness, peel firmness, TSS/acid ratio and vitamin C. In addition, peel percentage, pulp firmness, TSS/acid   ratio and vitamin C depressed with increasing cold storage during after shelf life periods. The tested hot water (HW) and fungicide (IMZ) treatments decreased CI and FD percentage of fruits during either cold storage or shelf life periods. In addition, there is no effect of tested treatments on fruit quality attributes during cold storage or during shelf life periods.                           

DOI

10.21608/jpd.2010.42412

Keywords

Cold storage, hot water treatments, Ponkan tangarine fruits, Chilling injury, panel test index, decay, disinfestations

Authors

First Name

Osama

Last Name

Zagzog

MiddleName

-

Affiliation

Plant Production Department (Horticulture), Efficient Productivity Institute, Zagazig University, Egypt

Email

zagzog_1000@yahoo.com

City

zagazig

Orcid

-

First Name

Sayed

Last Name

El-Hefnawi

MiddleName

Magdy

Affiliation

Horticulture Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.

Email

-

City

zagazig

Orcid

-

First Name

Farid

Last Name

Mohsen

MiddleName

-

Affiliation

Horticulture Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.

Email

-

City

zagazig

Orcid

-

Volume

15

Article Issue

2

Related Issue

6666

Issue Date

2010-04-01

Receive Date

2010-03-06

Publish Date

2010-04-01

Page Start

201

Page End

222

Print ISSN

1110-2543

Online ISSN

2682-3322

Article File

JPD_Volume 15_Issue 2_Pages 201-222.pdf

PDF . 411.4kB

Link

https://jpd.journals.ekb.eg/article_42412.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=42412

Order

5

Type

Original Article

Type Code

867

Publication Type

Journal

Publication Title

Journal of Productivity and Development

Publication Link

https://jpd.journals.ekb.eg/

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Article

Created At

22 Jan 2023