[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 20, Issue 4 (2021) ::
IJFS 2021, 20 Back to browse issues page
Research Article: Effect of gamma irradiation and modified atmosphere packaging on the shelf-life of white shrimp (Metapenaeus affinis)
Sh. Mehrzadeh, L. Roomiani *
Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran , l.roomiani@yahoo.com
Abstract:   (1604 Views)
This study attempts to investigate the variations in pH, thiobarbituric acid (TBA), total volatile basic nitrogen (TVB-N), free fatty acids (FFA), colorimetric parameters (L*, a*, b*), total viable bacterial count (TVC) and textural profile analysis as a function of storage time to evaluate the effect of gamma irradiation (0, 1, 3, 5, 7 kGy) and modified atmosphere packaging (MAP) on the shelf life of white shrimp (Metapenaeus affinis) stored for 15 days at 4 ºC. Compared to the control group, increasing radiation dose (up to 7 kGy) and storage time (up to 15 days) led to an increase in pH index (P< 0.05). TBA, FFA and TVC increased with higher radiation dose and storage time. Prolong the storage time, increased the TVB-N to the end of the fifteenth day, while higher gamma doses from 0 to 7 kGy reduced the TVB-N content (P< 0.05). According to the results obtained from comparing colorimetric parameter, increasing radiation dose did have an influence on L*, a* and b* indices of shrimp samples. Furthermore, increasing the storage time (P< 0.05) reduced L* and b* index while increased a*. Increasing the gamma radiation and storage time reduced the hardness and chewiness treated shrimp samples (P< 0.05). Based on the microbiological and chemical results, the optimal storage time for shrimp under various radiation doses was measured in 7 kGy treatment and on day 12. This treatment could improve the storage time by 6 days compared to the control treatment.
Keywords: Gamma irradiation, Shelf-life, Modified atmosphere packaging, Metapenaeus affinis
Full-Text [PDF 533 kb]   (527 Downloads)    
Type of Study: Orginal research papers | Subject: Fish processing
Received: 2018/12/29 | Accepted: 2020/10/6 | Published: 2021/07/19
Send email to the article author

Add your comments about this article
Your username or Email:


XML     Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Mehrzadeh S, Roomiani L. Research Article: Effect of gamma irradiation and modified atmosphere packaging on the shelf-life of white shrimp (Metapenaeus affinis). IJFS 2021; 20 (4) :1004-1021
URL: http://jifro.ir/article-1-3735-en.html

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 20, Issue 4 (2021) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.04 seconds with 30 queries by YEKTAWEB 4514