ArticleFoods (Basel, Switzerland)2018
Optimizing Extraction Conditions of Free and Bound Phenolic Compounds from Rice By-Products and Their Antioxidant Effects.
Article in Foods (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 69 citations in OpenAlex.
- Rice Protein-Fortified Gummy: The Physicochemical, Bioactive and Sensory Evaluation.Foods (Basel, Switzerland) · 2026Article
- Nutritional and Functional Potential of Rapeseed and Canola Proteins: Advances in Protein Extraction, Phenolic Removal, and Food Applications.Comprehensive reviews in food science and food safety · 2026Review
- Ultrasound-Assisted Extraction of Free and Bound Phenolics from Hawthorn (Crataegus azarolus) Leaves and their Antioxidant and Antidiabetic Activities.Plant foods for human nutrition (Dordrecht, Netherlands) · 2026Article
- Exploring Bioactivities, Cytotoxicity, and Anti-Acne Potential of Malaysian Colored Rice (Oryza sativa L. Cv. MRQ 98).Chemistry & biodiversity · 2026Article
- Multivariate Chemometric and FTIR Insights Into the Effects of Rice Bran Extracts on Brown Rice Protein Bars.Food science & nutrition · 2026Article
- Stability and Bioactivity of Abelmoschus sagittifolius Extracts Following In Vitro Digestion.Chemistry & biodiversity · 2026Article
- Optimization of phenolic extraction method andFood hydrocolloids for health · 2025Article
- Evaluation of Antibacterial and Antibiofilm Activity of Rice Husk Extract againstPathogens (Basel, Switzerland) · 2024Article
- Rice Byproduct Compounds: From Green Extraction to Antioxidant Properties.Antioxidants (Basel, Switzerland) · 2023Review
- Impact of High-Pressure Homogenization on Enhancing the Extractability of Phytochemicals from Agri-Food Residues.Molecules (Basel, Switzerland) · 2023Article
- Valorization of Rice Husk (Foods (Basel, Switzerland) · 2023Article
- Comparison and Optimization of Different Extraction Methods of Bound Phenolics from Jizi439 Black Wheat Bran.Foods (Basel, Switzerland) · 2022Article
- Development and Optimisation of Solid-Phase Extraction of Extractable and Bound Phenolic Acids in Spelt (Antioxidants (Basel, Switzerland) · 2021Article
- Bioactive Components and Antioxidant Activity Distribution in Pearling Fractions of Different Greek Barley Cultivars.Foods (Basel, Switzerland) · 2020Article
- Recovery of Polyphenols from Brewer's Spent Grains.Antioxidants (Basel, Switzerland) · 2019Article
- Rice Flour and Bran Enriched with Blueberry Polyphenols Increases Storage Stability and Decreases Arsenic Content in Bran.Foods (Basel, Switzerland) · 2019Article
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4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Rice by-products are extensively abundant agricultural wastes from the rice industry. This study was designed to optimize experimental conditions for maximum recovery of free and bound phenolic compounds from rice by-products. Optimized conditions were determined using response surface methodology based on total phenolic content (TPC), ABTS radical scavenging activity and ferric reducing power (FRAP). A Box-Behnken design was used to investigate the effects of ethanol concentration, extraction time and temperature, and NaOH concentration, hydrolysis time and temperature for free and bound fractions, respectively. The optimal conditions for the free phenolics were 41⁻56%, 40 °C, 10 min, whereas for bound phenolics were 2.5⁻3.6 M, 80 °C, 120 min. Under these conditions free TPC, ABTS and FRAP values in the bran were approximately 2-times higher than in the husk. However, bound TPC and FRAP values in the husk were 1.9- and 1.2-times higher than those in the bran, respectively, while bran fraction observed the highest ABTS value. Ferulic acid was most evident in the bran, whereas
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.