Reintegration of Food Industry By-Products: Potential Applications

Abstract

Numerous studies have indicated that fruits and vegetables are considered as significant sources of bioactive compounds. The generated by-products, which are derived from the food industry, reveal similar or higher antioxidant activity. On the other hand, intense industrialization results in the production of large volumes of by-products, raising serious environmental issues. Therefore, this situation creates the necessity to develop new strategies in order to exploit the generated wastes, securing the ability to develop new high-added-value products. This review aims to summarize the exploitation of fruit wastes, namely, apple and citrus, as well as vegetable by-products which are derived from tomato, potato and carrot cultivation. All the aforementioned by-products have found wide applications in the development of new high-added-value products in the food and feed industry owing to their improved nutritional profiles. Furthermore, these wastes are characterized by a strong antioxidant activity, justifying their valorization in other fields such as cosmetics and pharmaceutical industries.

Enrichment of Whole-Grain Breads with Food-Grade Extracted Apple Pomace Bioactives Enhanced Their Anti-Inflammatory, Antithrombotic and Anti-Oxidant Functional Properties

“…Dietary bioactives from sustainable sources, such as those present in health fruits and in beverages from these fruits, with anti-inflammatory and antioxidant effects can protect against inflammatory and oxidative manifestations involved in these pathologies [3][4][5][6][7][8]. Moreover, antioxidants and anti-inflammatory phenolics and lipid bioactives, such as several bio-functional dietary polar lipids (PLs) present in the by-products of fruit processing, have also shown significant potential against several oxidative, thrombotic and inflammatory pathways involved in the onset and development of chronic disorders [5,6,9,10]. Subsequently, the dietary bioactives of fruits' by-products have also gained interest as sustainable sources of natural dietary bioactives that can be valorized as ingredients in functional foods and food supplements or nutraceuticals with anti-inflammatory health-promoting properties, in a circular economy design [5,6,9,10].…”

Acid-Catalyzed Organosolv Treatment of Potato Peels to Boost Release of Polyphenolic Compounds Using 1- and 2-Propanol

“…Polyphenols are considered the principal bioactives in PP, to which an array of properties have been attributed. Furthermore, PP extracts have been successfully used as natural food antioxidants, and they have been regarded as effective replacers of synthetic ones [17]. Therefore, it does not come as a surprise that several processes have been proposed for the production of PP polyphenol extraction, yet conventional methodologies reported in the literature appear to provide rather low yields in total polyphenols.…”