Does Spray Mango Kernel (Mangifera indica Linn.) Prolong the Shelf Life of Beef Sausages?

Aly R Abdel-Moemin

doi:10.5539/jfr.v4n3p118

Abstract

The study was aimed to look at the effect of different forms of mango kernels (MK) on the shelf life of refrigerated beef sausages over 12 days of cold storage. The (MK) was chemically and microbiologically analyzed. Beef sausages were treated with MK in 3 states, as dry ground (1.5%), an extract (1.5%) and spray MK extract (1.5%) over minced beef of sausages. Two controls were used; BHT 0.02% and no additives. A series of analyses were performed after treatments; thiobarbituric acid reactive substances (TBARS), analysis of color, myoglobin and odor. The results indicated that different forms of MK added to the beef sausages had different effects on its shelf life. Furthermore, the sprayed MK extract has significantly (P ?0.05) lowered metmyoglobin (MMb) and TBARS and increased oxymyoglobin (MbO2), odor score and a* (redness) than other forms. The potential effects of the sprayed MK may be due to a cloud of droplets cover the large surfaces of minced beef sausages with efficient extracted antioxidants. MK is source of flavonoids 142mg/g F.W. GAE. The spraying of MK at 1.5% showed an improvement of E. coli from minced beef and beef sausages that were less than 10 cfu g-1. Also the concentrations of yeasts and moulds were not detected at day 12 of storage. Hierarchically, sprayed MK extract gave best results than ground MK or MK extract form which shows effective inhibitor of lipid oxidation and microbial growth of beef sausages.

Highlights

Fruits wastes make a large component of solid waste residue from agro-fruit processing industries that could increase environmental pollution due to its rapid decay
The results indicated that different forms of mango kernels (MK) added to the beef sausages had different effects on its shelf life
We have investigated the effect of spraying MK in an extract form at 1.5% over minced beef of sausage in order to testing if spraying MK may extend the shelf life of beef sausages than other forms

Summary

Introduction

Fruits wastes make a large component of solid waste residue from agro-fruit processing industries that could increase environmental pollution due to its rapid decay. It has been reported that 45% of wastes are from mangoes, compared to 50% from citrus fruits and 10% from apples (Rao, 2006). Fruit peels and seeds are the most enriched part of fruits as they act as storage sites for nutrients required by the young plants. They have been suggested to have antioxidant properties. Mango (Mangifera indica Linn.) is considered as one of the most summer favorite fruits in Egypt. By-products such as peel and seed kernel are produced. Mango seed is a single flat rectangular seed that can be fibrous or hairy on the surface, depending on the cultivar. Inside the seed coat 1-2 mm thick is a thin lining covering a single embryo, 4-7 cm long, 3- 4 cm wide, and 1 cm thick

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