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72491

ENHANCING QUALITY ATTRIBUTES OF GUAVA FRUITS DURING COLD STORAGE BY USING EDIBLE COMPOSITE COATING (CHITOSAN) AND CALCIUM NITRATE

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Last updated: 04 Jan 2025

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Abstract

The current investigation was carried out during 2015 and 2016 seasons on El-mamoura guava fruits (Psidium guajava L.) to study the effect of calcium nitrate and chitosan coating treatments on the physico-chemical characteristics of the fruits during cold storage period. All treatments prevented fruit decay compared with control which lost 26.14 % (average of the two seasons) of its fruits. Guava fruits didn't lost any weight during the first two weeks of cold storage in both seasons and after 43 days the least weight loss percentages were for the treatments of Calc. Nit. 4% + Chitosan 0.5% in the first season and Calc. Nit. 2% + Chitosan 1% in the second season. The above treatment of Calc. Nit. 2% + Chitosan 1% had the highest significant average of V.C and gave the highest firmness values in both seasons and its fruits had the highest citric acid content in the last interval of the first season. All treatments maintained the TSS content in guava fruits during cold storage period and the treatment of Calc. Nit. 4% + Chitosan 0.5% had the highest significant average value in both seasons. Conclusively, it is recommending treatment with 0.5% chitosan as a coating and calcium nitrate 5 % to guava fruit cv. ELmamoura to improving fruit quality for cold storage a long time.  

DOI

10.21608/jpd.2019.72491

Keywords

Enhancing Quality, Guava Fruits, Cold storage, Edible Composite Coating, Chitosan, Calcium Nitrate

Authors

First Name

Ahmed

Last Name

Abd El-Rahman

MiddleName

-

Affiliation

Plant Prod.Dept. (Pomology), Fac. Tec. &Dev., Zagazig Univ., Egypt

Email

-

City

Fac. Tec. &Dev., Zagazig Univ

Orcid

-

First Name

Osama

Last Name

Zagzog

MiddleName

-

Affiliation

Plant Prod. Depart. Fac. of Tech. and Deve., Zagazig Univ., Egypt.

Email

zagzog_1000@yahoo.com

City

Zagazig

Orcid

-

First Name

Nermeen

Last Name

El-Naggar

MiddleName

-

Affiliation

Plant Prod.Dept. (Pomology), Fac. Tec. &Dev., Zagazig Univ., Egypt

Email

nielnagar@hotmail.com

City

Fac. Tec. &Dev., Zagazig Univ.,

Orcid

-

First Name

Mohamed

Last Name

Gad

MiddleName

-

Affiliation

Hort. Dept. (Pomology), Fac. Agric., Zagazig Univ., Egypt

Email

-

City

ac. Agric., Zagazig Univ.,

Orcid

-

Volume

24

Article Issue

4

Related Issue

6523

Issue Date

2019-10-01

Receive Date

2019-08-12

Publish Date

2019-10-01

Page Start

787

Page End

805

Print ISSN

1110-2543

Online ISSN

2682-3322

Article File

JPD_Volume 24_Issue 4_Pages 787-805.pdf

PDF . 677.5kB

Link

https://jpd.journals.ekb.eg/article_72491.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=72491

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/

MainTitle

ENHANCING QUALITY ATTRIBUTES OF GUAVA FRUITS DURING COLD STORAGE BY USING EDIBLE COMPOSITE COATING (CHITOSAN) AND CALCIUM NITRATE

Details

Type

Article

Created At

22 Jan 2023