Abstract
The current industrial requirements for food naturalness are forcing the development of new strategies to achieve the production of healthier foods by replacing the use of synthetic additives with bioactive compounds from natural sources. Here, we investigate the use of plant tissue culture as a biotechnological solution to produce plant-derived bioactive compounds with antioxidant activity and their application to protect fish oil-in-water emulsions against lipid peroxidation. The total phenolic content of Bryophyllum plant extracts ranges from 3.4 to 5.9 mM, expressed as gallic acid equivalents (GAE). The addition of Bryophyllum extracts to 4:6 fish oil-in-water emulsions results in a sharp (eight-fold) increase in the antioxidant efficiency due to the incorporation of polyphenols to the interfacial region. In the emulsions, the antioxidant efficiency of extracts increased linearly with concentration and levelled off at 500 μM GAE, reaching a plateau region. The antioxidant efficiency increases modestly (12%) upon increasing the pH from 3.0 to 5.0, while an increase in temperature from 10 to 30 °C causes a six-fold decrease in the antioxidant efficiency. Overall, results show that Bryophyllum plant-derived extracts are promising sources of bioactive compounds with antioxidant activity that can be eventually be used to control lipid oxidation in food emulsions containing (poly)unsaturated fatty acids.
Highlights
The aging of world population is a global trend with important implications in the human health and in the incidence of age-related diseases
The use of Bryophyllum extracts provides a meaningful opportunity to shed some light on the solubility capacity of the interfacial region of emulsions and for the purpose we evaluated the effects of Bryophyllum extract concentrations (TPC values from 194 μM to 594 μM gallic acid equivalents (GAE)) on the oxidative stability of fish oil emulsions
We proposed the opportunity of employing in vitro-cultured Bryophyllum-derived plant extracts, Bryophyllum × houghtonii extracts, as a promising source of bioactive compounds with antioxidant activity for minimizing lipid oxidation of omega-3 enriched emulsions
Summary
The aging of world population is a global trend with important implications in the human health and in the incidence of age-related diseases. Some life-style patterns, including diet and exercise, have become increasingly important in stimulating molecular mechanisms in attempting to prevent the onset of oxidative stress via reactive oxygen and nitrogen species (ROS/RNS) formation [2]. Because of the health implications, in the last decades, the increasing consumers’ awareness about food processing and food quality pushed the food industry to meet new requirements in preparing healthier. This way, innovative biotechnological strategies have been developed to make foods. This innovativeofbiotechnological strategies have beenadded-value developed to make possible the possible the way, manufacturing food products with high nutritional and longer shelf-lives manufacturing of food products with high nutritional added-value and longer shelf-lives [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
