Abstract
Thermal processing ensures safety and enhances the shelf-life of most of the food products. It alters the structural-chemical composition, modifies heat labile components, as well as affects the functional properties of food products. This has driven the development of non-thermal food processing techniques, primarily for extending the shelf-life of different food products. These techniques are currently also being evaluated for their effects on product processing, quality and other safety parameters. Pulsed electric field (PEF) is an example of non-thermal technique which can be applied for a variety of purpose in the food processing industry. PEF can be used for antimicrobial treatment of various food products to improve the storability or food safety, for extraction and recovery of some high-value compounds from a food matrix or for stabilization of various food products through inactivation of some enzymes or catalysts. Research on the application of PEF to control spoilage or pathogenic microorganisms in different egg products is being currently focused. It has been reported that PEF effectively reduces the activity of various microorganisms in a variety of egg products. However, the PEF treatment also alters the structural and functional properties to some extent and there is a high degree of variability between different studies. In addition to integrating findings, the present review also provides several explanations for the inconsistency in findings between different studies related to PEF processing of egg products. Several specific recommendations for future research directions on PEF processing are well discussed in this review.
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Abbreviations
- PEF:
-
Pulsed electric field
- TMP:
-
Transmembrane potential
- TMPc:
-
Critical transmembrane potential
- DC:
-
Direct current
- AC:
-
Alternate current
- SS:
-
Stainless steel
- HTST:
-
High-temperature short-time
- LWE:
-
Liquid whole egg
- SPC:
-
Soluble protein content
- TC:
-
Triethyl citrate
- EWP:
-
Egg white powder
- EDTA:
-
Ethylenediaminetetraacetic acid
- USDA:
-
United States Department of Agriculture
- SM:
-
Skim milk
- EO:
-
Essential oil
- MW:
-
Molecular weight
- DPPH:
-
2, 2 diphenyl – 1 – picrylhydrazyl
- FRAP:
-
Ferric reducing antioxidant potential
- RP:
-
Reducing power
- -SH:
-
Sulphydryl
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Yogesh, K. Pulsed electric field processing of egg products: a review. J Food Sci Technol 53, 934–945 (2016). https://doi.org/10.1007/s13197-015-2061-3
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DOI: https://doi.org/10.1007/s13197-015-2061-3