A5010497532- Phytochemicals and Antioxidant Activities
- Botanical Research and Applications
- Food composition and properties
- Microbial Metabolites in Food Biotechnology
- Antioxidant Activity and Oxidative Stress
- Phytoestrogen effects and research
- Agricultural and Food Sciences
- Coffee research and impacts
- Essential Oils and Antimicrobial Activity
- Phytochemistry Medicinal Plant Applications
- Tea Polyphenols and Effects
- Soybean genetics and cultivation
- African Botany and Ecology Studies
- Biochemical Analysis and Sensing Techniques
- Natural Antidiabetic Agents Studies
- Tannin, Tannase and Anticancer Activities
- Analytical Chemistry and Chromatography
- Plant biochemistry and biosynthesis
- Phytase and its Applications
- Nuts composition and effects
- Growth and nutrition in plants
- Fermentation and Sensory Analysis
- GABA and Rice Research
- Liver Disease Diagnosis and Treatment
- Nigella sativa pharmacological applications
Brazilian Agricultural Research Corporation
2015-2024
Nobel Foundation
2015
Summary The influence of ultrasound power (1000–3000 W/L), citric acid concentration (0–3%) and solid:liquid ratio (1:5–1:15) on the phenolic compounds recovery antioxidant capacity Syrah grape skin extracts were evaluated. Total varied from 6485 to 11732 mg gallic acid/100 g monomeric anthocyanin content 453 685 malvidin‐3‐glucoside/100 g. measured by ORAC ABTS methods ranged 230 516 μmol Trolox/g 442 939 Trolox/g, respectively. most suitable conditions chosen for extraction, within studied...
The present study aims to evaluate whether açaí (Euterpe oleracea Mart) fruit pulp powder (AP) feeding attenuates the initiation step of chemically-induced mouse colon carcinogenesis. Male Swiss mice were fed low fat diet containing 2.5% or 5.0% AP (weeks 1 4) produced by a spray-drying system. All groups received an intraperitoneal (i.p.) injection carcinogen azoxymethane (AOM, 15 mg/kg body weight) at week 3. After first administration carcinogen, blood samples collected perform Single...
There is a significant indication of the beneficial health effects fruit rich diets. Fruits native plant species have noticeably different phytochemicals and bioactive effects. The aim this work was to characterize compare constituents jabuticaba (Myrciaria jaboticaba, MJ), jamun-berry (Syzygium cumini, SC), malay-apple malaccense, SM) extracts their influence on antioxidant activity in vitro antiproliferative human colon adenocarcinoma cells. According results, dried peel powders (DP) high...
This study evaluated the effect of different extraction technologies and conditions in order to obtain jaboticaba skin extracts. Firstly, skins were extracted by conventional extraction, according a rotatable central composite design, varying ethanol concentration, solid:liquid ratio, temperature. Next, ultrasound-assisted was performed using power densities times. Finally, high-pressure extractions with pressures For agitated bed highest anthocyanin content observed for concentrations...
In order to generate simple, efficient analytical methods that are also fast, clean, and economical, capable of producing reliable results for a large number samples, micro scale extraction method analysis carotenoids in vegetable matrices was developed. The efficiency this adapted checked by comparing the obtained from matrices, based on equivalence, time required reagents. Six were used: tomato (Solanum lycopersicum L.), carrot (Daucus carota sweet potato with orange pulp (Ipomoea batatas...
M. floribunda fruit was studied to characterize its chemical composition. The composition, bioactive compounds, antioxidant activity and volatiles of the were determined. composition determined according AOAC AOCS, compounds by HPLC, GCMS ABTS+ DPPH methods. freeze-dried 1.89 g·100 g-1, 2.43 4.78 g-1 90.89 ashes, lipids, proteins total carbohydrates on a dry base, respectively. concentration carotenoids 52.22 mg·100 for flavonoid rutin 78.56 g-1. gallic ellagic acid contents 5.45 mg·g-1 2.21...
Coffee is currently the second largest commodity on world market today, and there great concern about quality of beans exported from producer countries to Europe USA. Practices such as using blends different species adding low-cost raw materials, chicory, corn, soybean, impair sensory functional characteristics drink made roasted ground coffee beans. There a need adopt more efficient analytical methods than microscopy technique used. The first chromatographic method used determine fraud was...
Introduction. Tropical fruit have a good commercial potential as natural colorants; however, they are underexploited. Anthocyanins from jamelao (Syzygium cumini ) peel been shown to be an alternative source of pigments for the food industry. Due toxicity some synthetic colorants environment and human health, these artificial being replaced by pigments. This study was carried out evaluate properties technological feasibility using powder colorant. Materials methods. Over 5 month period...
The alcoholic fermentation of jabuticaba berries (Plinia spp.) originates from a beverage with an intense taste and aroma, popularly known as wine (JW). In addition, polyphenols transferred fruit peels to the final product turn this into promising source bioactive agents. Here, chemical profile antioxidant potential artisanal JW derivative extracts were determined. Volatile organic compounds determined by HS-SPME/GC-MS analysis. was dried lyophilization subjected liquid-liquid partitioning...
Vitamin A deficiency is the third most important micronutrient having a significant impact on public health worldwide. The aim of this study was to develop carotenoid extraction process with edible vegetable oils, using central composite design which, concurrently, enriches oils provitamin carotenoids. stability carotenoids in oil and their shelf life also evaluated. aimed meet Recommended Daily Intake for vitamin (600 μg retinol equivalent an adult) enriched oil. results showed that 20 %...
Pomegranate (Punica granatum L.) is a fruit with long medicinal history, especially due to its phenolic compounds content, such as the anthocyanins, which are reported one of most important natural antioxidants. The analysis anthocyanins by high performance liquid chromatography (HPLC) can be considered an tool evaluate quality pomegranate juice. For research laboratories major challenge in using HPLC for quantitative analyses acquisition purity analytical standards, since these expensive...
The grape skin extract obtained from Alicante Bouschet (Vitis vinifera L.) presented anthocyanins (396 mg/L), phenolic acids (76 mg/L) and flavanols (63 mg/L). After in vitro digestion colonic fermentation there was a significant reduction of but an increase acids, mainly gallic acid also concomitant antioxidant capacity. There no difference for the microorganisms after 24 h acetic (p < 0.05). bioaccessibility significantly improved (>100%) favored metabolic activity microbiota.
Abstract This work aimed to characterize some of the bioactive compounds Eugenia punicifolia (Kunth) DC. fruit enhance knowledge its functional potential. Ripe fruits were collected from restinga Maricá, in state Rio de Janeiro (RJ), Brazil. Bioactive analyzed by High Performance Liquid Chromatography (HPLC). Ascorbic acid (74.14 mg 100-1 g-1), lycopene (504 µg g-1) and total carotenoids (632 contents superior other rich these compounds. In fact, E. are an excellent source can be considered...
Os taninos estao entre os compostos fenolicos mais abundantes na dieta humana e podem desempenhar um papel fundamental reducao do risco de doencas cardiovasculares, neurodegenerativas câncer, sendo, portanto, grande relevância a sua caracterizacao. ser divididos em dois grupos: condensados (proantocianidinas) hidrolisaveis. sao formados biossinteticamente pela condensacao subunidades flavan-3-ol (catequina, epicatequina, outros) para formar redes oligomericas e/ou polimericas. Devido...
Jaboticaba (
Acylated anthocyanins from a purple-fleshed sweet potato (PFSP), obtained by organic cultivation in Brazil, were characterized after separation high performance liquid chromatography-diode array detector (HPLC-PDA). These manually collected at the output, concentrated and injected into resolution mass spectrometer (ESI-QTOF-MS2). Twenty-two acylated detected. Among them, sixteen had been reported literature six, derived peonidin for first time roots this study. compounds showed molecular...