Effect of MAP and Multi-layer Flexible Films on the Growth of Aerobic Bacteria of Fresh Ostrich Meat
Journal Title: International Journal of Medical Research & Health Sciences (IJMRHS) - Year 2016, Vol 5, Issue 11
Abstract
The effect of different concentrations of two gas mixture (Carbon dioxide, Nitrogen), and also vacuum conditions and the usage of flexible multi-layer films has been studied on the growth of aerobic bacteria in fresh meat ostrich at refrigerator (T=4 0C). Ordinary conditions as a control packaging were compared with three types of modified atmosphere packaging: {(N270% + CO230%), (N230% + CO270%)} and vacuum conditions in this study. Fresh ostrich meat were packaged into 3 kinds of polymeric flexible pouch†4-layers {PET (12) / AL (7) / PET (12) / LLD (100)}, 3-layers {PET (12) / L (12) / LLD (100)} and 3-layers {PET (12) / AL (7) / LLD (100)}. Samples were performed microbial tests (Total count of aerobic bacteria), in different times during 15 days, with 12 treatment ,3 run, statistical analysis and comparison of data, were done by software SAS (Ver:9/1) and Duncan’s new multiple range test, with confidence level of 95% (P <0.05) . The usage of MAP was not adequate for controlling spoilage, but the spoilage process was delayed. Aerobic bacteria’s grew in fresh ostrich meat, and their population under (% 30 CO2 +% 70 N2) and also vacuum conditions in these containers were more than 106 (not acceptable).However, the best condition belonged to (N2 30% N2+ 70% CO2), which was acceptable. The Characteristic of these multilayer flexible pouches (3-4 layers) with less water vapor and oxygen permeability, caused to control some chemical reactions and microbial growth in samples. Maximum aerobic bacteria’s which were grown in these meat samples was related to control conditions, then treatments under vacuum and % 30 CO2 in 3-layers AL (7 µ), and the lowest growth belonged to treatment under % 70 CO2 in 4-layer because of thickness and low steam permeability of this 4-layer container and anti-bacterial properties of more percentage of CO2.
Authors and Affiliations
Nazanin Zand| Department of Food Science and Technology, Faculty of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran, Corresponding E-mail: n_zand2008@yahoo.com, Ali Hafez pour| Department of Food Science and Technology, Faculty of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
Keywords
Related Articles
- EP ID EP12143
- DOI -
- Views 292
- Downloads 13
EARLY DETECTION OF CRITICAL CONGENITAL HEART DISEASE IN NEWBORNS USING PULSE OXIMETRY SCREENING
Background: Congenital heart diseases which are dependent on the ductusarteriosus to maintain adequate oxygenation or systemic blood flow are termed as a critical congenital heart disease (CCHD). Delay in the diagnosis...
A COMPARATIVE STUDY AMONG THE THREE WHEELER AUTOMOBILE DRIVERS ON PULMONARY FUNCTION TESTS IN ADULT MALES OF GULBARGA CITY
Background: Development of our country has led to rapid urbanization and there is increasing use of automobiles that is aggravating environmental pollution. Occupational exposure to automobile exhaust and industrial sm...
Outcome of Operative Fixation of Midclavicular Fractures by Titanium Elastic Nailing System (TENS) - A Prospective Study in 21 Patients
This study is based on the technique of minimally-invasive osteosynthesis using Titanium elastic nails (TENS) in OTA Type Amidclavicular fractures with displacement or shortening more than 2 cm. The aim of the study was...
A RARE CASE OF NEUROLIPOMA
A painful swelling over the left ankle joint was excised. Histopathology revealed it to be a neuroliploma. This case is reported here for its uncommon site that is involvement peroneal nerve, no association with skelet...
STUDY OF VASCULAR SEGMENTS OF LIVER ON COMPUTERISED TOMOGRAPHY IN SUBJECTS WITH NORMAL LIVER
Liver, the largest gland in the body receives total perfusion of 1500ml per min even in inactive state. The introduction of Computerised Tomography has made imaging of liver more detailed and safe. The liver is divided...