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The aim of this study was to evaluate the bioaccessibility of chlorogenic acid (CA) and curcumin co-encapsulated in Pickering double emulsions (DEs) with the inner interface stabilized by hydrophobically modified silica nanoparticles with myristic acid (SNPs-C14) or tocopherol succinate (SNPs-TS). Both SNPs-C14 and SNPs-TS showed contact angles > 90°. Pickering W/O emulsions were formulated with 4 % of both types of SNPs. Pickering DEs showed higher creaming stability (5-7 %, day 42) and higher CA encapsulation efficiency (EE; 80 %) than control DE. The EE of curcumin was > 98 % in all the DEs. CA was steadily released from Pickering DEs during digestion, achieving bioaccessibility values of 58-60 %. Curcumin was released during the intestinal phase (∼80 % bioaccessibility in all DEs). Co-loaded DEs showed similar bioaccessibility for CA and curcumin than single-loaded. SNPs-C14 and SNPs-TS were suitable to stabilize the W:O interface of DEs as co-delivery systems of bioactive compounds with health-promoting properties.
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http://dx.doi.org/10.1016/j.foodchem.2024.138828 | DOI Listing |
Plant Foods Hum Nutr
September 2025
REQUIMTE/LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
The growing interest in prebiotic ingredients has led to the valorization of agri-food by-products, such as coffee silverskin, known for its richness in dietary fiber and health-promoting compounds. This study evaluated the impact of in vitro simulation of gastrointestinal digestion on the chemical composition (carbohydrates, caffeine, and chlorogenic acids) and prebiotic potential (probiotic growth, organic acid production, pH, and antioxidant activity) of milled coffee silverskin. The results show stability of polysaccharides during digestion, while caffeine and 5-caffeoylquinic acid were partially released into the bioaccessible fraction.
View Article and Find Full Text PDFEur J Nutr
August 2025
Department of Food Engineering, Faculty of Engineering, Erciyes University, 38039, Kayseri, Turkey.
Purpose: The present study aimed to optimize the extraction conditions of quince phenolic compounds, and to investigate the changes in quince soluble-insoluble dietary fiber and phenolic compounds under in vitro gastrointestinal digestion conditions.
Methods: Extraction optimization of quince phenolic compounds was done with a three-stage method consisting of fractional factorial design, steepest ascent/descent method, and central composite design. The effect of quince phenolic extract on α-glucosidase, α-amylase, and pancreatic lipase inhibition was examined.
Plants (Basel)
August 2025
Laboratory for Food Chemistry, Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.
The extract of powdered raspberry pomace was characterized in terms of its phenolic profile and antioxidant and antimicrobial activity. Kuromanin, chlorogenic acid, protocatechuic acid, and pelargonidin-3--glucoside were found to be the major phenolic compounds, while the antioxidant activity of the extract correlated positively with the total phenolic content (TPC), which was 472.9 ± 0.
View Article and Find Full Text PDFFood Chem
October 2025
National R&D Branch Center for Freshwater Fish Processing, College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China. Electronic address:
In this research, chlorogenic acid (CA) and corbicula fluminea protein hydrolysates (CFP) were physically mixed to simulate practical scenarios. The non-covalent complexes were detected in the system. The underlying mechanisms as well as their effects on the antioxidant properties and bioaccessibility of CFP were detailed investigated.
View Article and Find Full Text PDFFood Hydrocoll Health
June 2025
Consumer-driven Grain Quality and Nutrition Center, Rice Breeding Innovations Platform, International Rice Research Institute, Los Baños 4030, Philippines.
Pigmented paddy rice is rich in a diverse array of phytochemicals that confer notable antioxidant and anticancer properties. However, the stability and bioaccessibility of these bioactive compounds present significant challenges. In this study, 542 brown (including pigmented and non-pigmented) whole grain rice samples were screened for their antioxidant components and capacity, leading to the identification of three superior cultivars: Balatinao variable purple rice, Ketan Hitam variable purple rice, and Kintuman red rice.
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