A5026155833- Phytochemicals and Antioxidant Activities
- Tea Polyphenols and Effects
- Natural Antidiabetic Agents Studies
- Antioxidant Activity and Oxidative Stress
- Microbial Metabolites in Food Biotechnology
- Phytochemistry Medicinal Plant Applications
- Ginkgo biloba and Cashew Applications
- Heavy Metals in Plants
- Essential Oils and Antimicrobial Activity
- Tryptophan and brain disorders
- Biochemical and biochemical processes
- Agricultural and Food Sciences
- Bee Products Chemical Analysis
- Moringa oleifera research and applications
- Phytochemistry and Biological Activities
- Vitamin C and Antioxidants Research
- Free Radicals and Antioxidants
- Protein Hydrolysis and Bioactive Peptides
- Pomegranate: compositions and health benefits
- Botanical Research and Applications
- Aquaculture Nutrition and Growth
- Vitamin D Research Studies
- Gastrointestinal motility and disorders
- Natural Products and Biological Research
- Plant pathogens and resistance mechanisms
Universidade Federal de Alfenas
2017-2025
Universidade Federal de Minas Gerais
2005
Studies have revealed more positive effects of berries' components over the years, representing a growing trend in their consumption. Phenolic compounds, such as anthocyanins, flavonols, and phenolic acids occur different concentrations depending on berry type. Significant trends to exploit beneficial compounds were collected, with mostly novel environmentally friendly techniques, ultrasound, microwave, high-pressure technologies. Abundant present berries (raspberry, blueberry, goji berry,...
Hibiscus sabdariffa calyx is a rich source of anthocyanins and other bioactive compounds but no study reported the effects experimental conditions on extraction these chemical compounds. Therefore, time temperature antioxidant activity were evaluated. In addition, copigmentation pH stability assessed cytotoxic (LC50, IC50, GC50) extracts determined in relation to tumor cell lines - Caco-2, HepG-2, HCT8, A549. The significantly influenced total flavonoids contents. interaction between...
This work aimed to characterize the phenolic composition and in vitro antioxidant antiproliferative properties of lyophilized camu-camu (Myrciaria dubia) seed extract (LCE), assess effects LCE on sensory traits yogurt. The contained 46.3% (wt/wt) total content; main compounds quantified were vescalagin, castalagin, gallic acid, procyanidin A2, (-)-epicatechin. had activity, as measured by different chemical assays (2,2-diphenyl-1-picrylhydrazyl, Folin-Ciocalteu reducing capacity, ferric...
Camu-camu (Myrciaria dubia) seeds are discarded without recovering the bioactive compounds. The main aim of present work was to optimise solvent mixture extract higher total phenolic content and antioxidant capacity camu-camu seeds. optimised system increased extraction compounds, in which vescalagin castalagin were displayed measured by different chemical biological assays, exerted antiproliferative cytotoxic effects against A549 HCT8 cancer cells, antimicrobial effects, protected human...
This study describes the bioaccessibility in terms of total phenolic content (TPC) and antioxidant capacity before after vitro digestion from blackcurrant press cake extracts (BPC) bioactivity cell culture, human erythrocytes as well silico analysis. Chemical analysis BPC presented an increase TPC (270%) anthocyanins (136%) digestion, resulting improvement activity (DPPH 112%; FRAP: 153%). behavior may be related to highest cyanidin-3-rutinoside, confirmed by The digested did not exert...
This study aimed to obtain an anthocyanin extract from the purple leaves of Camellia sinensis cv. Zijuan using a sustainable, non-toxic, and low-cost solid-liquid extraction, employing aqueous citric acid solution (0.2 mol/L) as extracting solvent, evaluate its chemical stability at different pH values, well in vitro antioxidant properties biological terms. The phenolic composition, activity, anthocyanins against pH, temperature, light crude (CE) were evaluated, composition bioactivity...
A statistical optimization study was conducted to obtain a tea containing fermented rooibos (Aspalathus linearis), white (Camellia sinensis var. sinensis), and roasted mate (Ilex paraguariensis). An optimal combination of these species proposed. This optimized inhibited 64% the lipoperoxidation in vitro presented high phenolic content, especially kaempferol, (+)-catechin, (-)-epicatechin, rutin, (-)-epigallocatechin, (-)-epicatechin-2-O-gallate. Indeed, antioxidant effect confirmed by...
The main objectives of the study were to compare phenolic composition, chemical and biological antioxidant activities, cytotoxicity towards IMR90, HCT8, A549 cell lines eight grades Chinese keemun black tea (Camellia sinensis var. sinensis) using a statistical approach. No cytotoxic effects observed on IMR90 normal cells. Our results all together show that capacity high-grade teas measured by DPPH, FRAP, total reducing assays was correspondingly higher than mean values low-grade these not...
This study aimed to characterise pressurised hot water (PHW) extracts from nonconventional sources of functional carbohydrates and phenolic compounds in terms antioxidant capacity, antiviral activity, toxicity, human erythrocytes' protection antidiabetic potential. PHW Norway spruce bark (E1 + E2) Birch sawdust (E3 E4) contained mostly galactoglucomannan glucuronoxylan. In contrast, samples E5 E9 extracted spruce, Scots pine are rich compounds. Overall, phenolic-rich presented the highest...
Abstract The Brazilian commercial ethanol propolis extract, also formulated to ensure physical and chemical stability, was found inhibit oral candidiasis in 12 denture‐bearing patients with prosthesis stomatitis association. Copyright © 2005 John Wiley & Sons, Ltd.
Red chicory leaves are appreciated sensorially and their constituents contain bioactive properties. The objectives of this study were as follows: to use an experimental design extract anthocyanins from red in aqueous solution at pH 2.5; determine the stability extracts relation temperature pH; evaluate antioxidant activity vitro cytotoxic effect lyophilized purified extracts. best extraction conditions for compounds a 64.2 °C 25 min; anthocyanin content was 73.53 ± 0.13 mg per 100 g fresh...
The aims of this study were to quantify and optimize the extraction total phenolic content (TPC), flavonoids (TF) antioxidant activity (AA) aqueous pu-erh (Camellia sinensis var. assamica) extracts, as well compare optimized tea extract (OPT) with toasted mate (Ilex paraguariensis), black green sinensis) teas. optimization process increased TPC ferric reducing power (FRAP). results showed that presented highest values for capacity. pasteurized OPT lower TF, higher FRAP, DPPH Cu2+ chelating...
The camu-camu seeds, which comprehend about 20% of the fruit weight, is discarded without taking benefit their chemical components and potential application by industry. In current study, we characterized phenolic composition, in vitro antioxidant effects, cytotoxic activity, inhibition induced-cisplatin chromosomal aberrations five seed extracts obtained with different proportions water (H2O) ethyl alcohol (EtOH). 50% H2O + EtOH was most promising extract because it presented higher total...
Abstract Objective Bone mineral density changes during the life span, rising rapidly adolescence, plateauing around 30 years of age and decreasing in later years. Life events such as pregnancy lactation temporarily reduce bone density, their long‐term effects on osteoporosis development are still unclear. This study aimed to analyse association between adolescence aged women. Methods was a cross‐sectional conducted with data from ELSI‐Brazil baseline (2015–2016). The sample consisted 2634...