Oxidative and Microbial Stability of a Traditional Appetizer: Aubergine Salad

An eggplant-based salad, called aubergine salad (AS), is a traditional appetizer and as such, is quite popular in the Mediterranean area. It is widely produced either on a home scale or on an industrial scale and widely consumed. However, there are cases where preservatives (such as sodium benzoate...

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Bibliographic Details
Published in:Processes 2022-07, Vol.10 (7), p.1245
Main Authors: Bozinou, Eleni, Chatzimitakos, Theodoros, Alexandraki, Maria, Salakidou, Chrysanthi, Dourtoglou, Vassilis G., Lalas, Stavros I., Elhakem, Abeer, Sami, Rokayya, Ashour, Amal Adnan, Shafie, Alaa, Athanasiadis, Vassilis
Format: Article
Language:English
Subjects:
Adenosine triphosphate
Benzoic acid
Bioluminescence
Consumers
Food contamination & poisoning
Food products
Ingredients
Lipids
Methods
Microorganisms
Oxidation resistance
Physicochemical properties
Potassium
Potassium sorbate
Preservatives
Salads
Shelf life
Sodium benzoate
Spoilage
Stability analysis
Tocopherol
Tocopherols
Vegetable oils
Vinegar
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Summary:An eggplant-based salad, called aubergine salad (AS), is a traditional appetizer and as such, is quite popular in the Mediterranean area. It is widely produced either on a home scale or on an industrial scale and widely consumed. However, there are cases where preservatives (such as sodium benzoate and potassium sorbate) are added in order to extend the shelf life of the product. In the present study, the stability of this delicatessen against oxidation and microbial spoilage was evaluated, with or without preservatives. The physicochemical properties of the salad were evaluated, along with the tocopherol content, resistance to oxidation, and microbial count. According to the results, it is evident that the induction period of AS is 16% (in the case that preservatives were used) and 26% (in the case without preservatives) increased, compared to a control sample (plain soybean oil). This can be attributed to the increased content in tocopherols, and more specifically to α-tocopherol. Furthermore, the addition of preservatives resulted in increased storage days and a reduction of microorganisms. However, in both cases, the AS-prepared salad exhibited a self-stabilization ability after 13 days, negating the need for preservatives.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr10071245