Research on Characterization and Processing of Table Olives
A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Engineering and Technology".
Deadline for manuscript submissions: closed (30 April 2020) | Viewed by 69684
Special Issue Editors
Interests: chlorophylls; chlorophyll derivatives; carotenoids; changes in food processing; chemistry and biochemistry of pigments; colorants; metal-chlorophyll complexes; metabolic process; table olives; olive oil
Interests: chloroplastic pigments; chlorophylls and derivatives; carotenoids; degradation mechanisms; color alteration; color adulteration; pigment-protein complexes; colorants; digestive stability and bioavailability of chlorophylls; table olives; virgin olive oil
Special Issue Information
Dear Colleagues,
The olive tree (Olea europea L.) is a widely distributed plant originating in the Mediterranean region. It is the most cultivated fruit tree in the world, surpassing 11 M ha. Although the olive fruits are mostly destined to obtain the highly valued olive oil, 11% of them are processed for direct consumption as table olives. This food of high nutritional value, was sustenance and a source of calcium for the Mediterranean inhabitants in times of scarcity. Table olives are currently consumed as an appetizer and/or highly healthy culinary ingredients for their low sugars content, high monounsaturated fatty acids content, and additional contribution of fiber, minerals, vitamins and bioactive components.
The olive fruit is a bitter drupe that has to be processed to transform it into an appetizing and edible food. There is a wide range of production styles, depending on the variety, ripening degree and type of fruit (whole or split), aimed at hydrolyzing the bitter oleuropein glucoside. The most widespread are those that use an alkaline hydrolysis or a slow acid and enzymatic hydrolysis. In addition, a fermentative process by lactic acid bacteria or yeasts is usually developed to increase palatability.
Producers demand innovative techniques improving the performance and industrial sustainability, as well as the development of new products that respond efficiently to increasingly demanding consumers. Foods with optimal nutritional characteristics, high quality and safety, improved organoleptic characteristics, and with reduction of additives, are highly demanded. Therefore, we would like to invite authors to contribute original research papers or review articles focused on novel aspects related to table olives: characterization of their chemical composition, functional properties and bioavailability of phytochemicals, as well as advances in the processing technology and waste treatment, including emerging techniques and optimized use of starter cultures for the improvement of the different fermentative processes. New strategies are also expected to reduce sodium and additives, to stabilize the organoleptic properties and avoid defects. And conservation methods aimed at extending the shelf life of highly valued artisanal products are also an aim. Likewise, analytical methods and prediction models for the traceability of the products and the detection of fraudulent practices related to the use of unauthorized additives are of interest.
Dr. Beatriz Gandul-Rojas
Dr. Lourdes Gallardo-Guerrero
Guest Editors
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Keywords
- food authenticity
- food quality
- fortified olives
- functional properties
- fermentation
- nutritional characteristics
- organoleptic characteristics
- prediction models
- preservation
- waste treatment
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