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| Registros recuperados: 101 | |
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| Laroze,Liza; Soto,Carmen; Zúñiga,María Elvira. |
| The effect of enzymatic hydrolysis on phenolic antioxidant extraction was studied in raspberry solid wastes. This by-product possesses high content of crude fiber (60%) and low values of protein, oil and ash. Raspberry fiber composition suggests that biocatalysts with cellulase, hemicellulase and pectinase activities would be useful for carrying out an enzymatically assisted antioxidant extraction. Hydro-alcoholic extraction was done using different commercial enzymes. Total phenol content and antioxidant activity of enzyme-hydrolyzed residue extracts were measured and compared with those obtained without enzyme application.All biocatalysts evaluated increased soluble solids in comparison to the non-enzymatic control. Among them, Grindamyl and Maxoliva... |
| Tipo: Journal article |
Palavras-chave: Antioxidant activity; Enzymatic extraction; Phenolic compounds. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600011 |
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| Nematollahia,Amene; Sohrabvandi,Sara; Mortazavian,Amir Mohammad; Jazaeri,Sahar. |
| Background: Increased popularity of vegetarianism, lactose intolerance, and the high cholesterol content in dairy products, are all factors that have recently increased the demand for nondairy probiotic products. The objective of this study is to evaluate the effect of refrigeration on the viability of probiotics and asses some of the chemical and sensory characteristics in cornelian cherry juice. Results: The Iranian native probiotic strain (L. casei T4) showed greater viability compared to industrial types (viable count of 8.67 log cfu/mL versus <6.0 log cfu/mL at d 28). However, this most tolerant Iranian strain, could not withstand the conditions of 'Natural juice' at pH 2.6 for more than 7 d. Following a pH adjusted treatment (to pH ~3.5), the... |
| Tipo: Journal article |
Palavras-chave: Antioxidant activity; Anthocyanin; Cornelian cherry; Phenolic compounds; Probiotic; Viability. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000300005 |
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| Cavalcante,Maisa D.; Belisário,Celso M.; Oliveira,Daniel Emanuel C. de; Maia,Geisa Priscilla A. G.. |
| ABSTRACT One of the factors that hinder the usability of Cerrado fruits is their perishable nature, requiring industrial processing to ensure prolonged shelf life. This study aims to determine the optimal foaming agent for industrial processing of this fruit, and to evaluate the physicochemical characteristics and antioxidant activity of dried cagaita powder (Eugenia dysenterica DC) in foam layers at temperatures of 40, 50, 60, and 70 °C. The effectiveness of three foaming agents at various concentrations were tested, and suitable agents were identified based on a factorial analysis of density, expansion, and stability. The physicochemical characteristics of the powder, along with its vitamin A and C and total carotenoid content and antioxidant activity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado fruits; Cagaita powder; Bioactive compounds; Antioxidant activity; Vitamin C; Vitamin A; Carotenoids; Foam layer drying. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000300381 |
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| Milhomem-Paixão,Susana Suely Rodrigues; Fascineli,Maria Luiza; Roll,Mariana Matos; Longo,João Paulo Figueiró; Azevedo,Ricardo Bentes; Pieczarka,Julio Cesar; Salgado,Hugo Leonardo Crisóstomo; Santos,Alberdan Silva; Grisolia,Cesar Koppe. |
| Abstract Andirobeira is an Amazonian tree, the seeds of which produce a commercially valuable oil that is used in folk medicine and in the cosmetic industry. Andiroba oil contains components with anti-inflammatory, cicatrizing and insect-repellant actions. However, virtually nothing is known of the safety of this oil for humans. The aim of this work was therefore to investigate the hematotoxicity, genotoxicity and mutagenicity of andiroba oil using the comet and micronucleus assays, and to assess its antioxidant properties and lipidome as a means of addressing safety issues. For the experiments, andiroba oil was administered by gavage for 14 consecutive days in nulliparous female Swiss mice randomly distributed in four groups: negative control and three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acute toxicity; Antioxidant activity; Carapa guianensis; Genotoxicity; Lipidomics. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000200248 |
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| Certain, Cassandre; Della Patrona, Luc; Gunkel-grillon, Peggy; Leopold, Audrey; Soudant, Philippe; Le Grand, Fabienne. |
| Cultivation of salt-tolerant crops help to face to irreversible global salinization of freshwater and soils. In New-Caledonia, three halophytes are candidates for saline crops, Salsola australis R.Br., Suaeda maritima (L.) Dumort and Enchylaena tomentosa R.Br. Their success and quality depend yet on availabilities of salinity and essential nutrients in agrosystems. So, we investigated effects of three salinities, i.e., control moderate and high, and five nitrogen ratios, i.e., 100:0, 75:25, 50:50, 25:75 or 0:100 NO3−-N:NH4+-N ratio on their growth and functional value for fatty acids and antioxidants. Results show that the leaf fatty acid and antioxidant profiles of species, emphasize their good potential to become functional crop products, based on... |
| Tipo: Text |
Palavras-chave: Halophyte; Salsola australis; Suaeda maritima; Enchylaena tomentosa; Salt tolerance; Nitrogen form; Fatty acid; Phenolic compounds; Antioxidant activity. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00682/79411/81960.pdf |
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| Dupont, S.; Carre-mlouka, A.; Descarrega, F.; Ereskovsky, A.; Longeon, A.; Mouray, E.; Florent, I.; Bourguet-kondracki, M. L.. |
| The diversity of the cultivable microbiota of the marine sponge Phorbas tenacior frequently found in the Mediterranean Sea was investigated, and its potential as a source of antimicrobial, antioxidant and antiplasmodial compounds was evaluated. The cultivable bacterial community was studied by isolation, cultivation and 16S rRNA gene sequencing. Twenty-three bacterial strains were isolated and identified in the Proteobacteria ( or classes) and Actinobacteria phyla. Furthermore, three different bacterial morphotypes localized extracellularly within the sponge tissues were revealed by microscopic observations. Bacterial strains were assigned to seven different genera, namely Vibrio, Photobacterium, Shewanella, Pseudomonas, Ruegeria, Pseudovibrio and... |
| Tipo: Text |
Palavras-chave: Antimicrobial activity; Antioxidant activity; Antiplasmodial activity; Associated bacteria; Phorbas tenacior; Phylogenetic diversity; RAPD; Sponge. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00372/48276/48535.pdf |
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| Surget, Gwladys; Roberto, Vania P.; Le Lann, Klervi; Mira, Sara; Guerard, Fabienne; Laize, Vincent; Poupart, Nathalie; Leonor Cancela, M.; Stiger-pouvreau, Valerie. |
| Marine macroalgae represent a valuable natural resource for bioactive phytochemicals with promising applications in therapeutics, although they remain largely under-exploited. In this work, the potential of two marine green macroalgae (Cladophora rupestris and Codium fragile) as a source of bioactive phenolic compounds was explored, and antioxidant, mineralogenic, and osteogenic activities were evaluated. For each species, a crude hydroalcoholic extract (CE) was prepared by solid/liquid extraction and fractionated by liquid/liquid purification into an ethyl acetate fraction (EAF) enriched in phenolic compounds and an aqueous fraction (AF). Antioxidant activity, assessed through radical scavenging activity and reducing power assay, was increased in EAF... |
| Tipo: Text |
Palavras-chave: Ulvophyceae; Phenolic compounds; Antioxidant activity; Mineralogenic activity; Proliferative activity. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00381/49282/49839.pdf |
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| Masatani, Tatsunori; Asada, Masahito; Hakimi, Hassan; Hayashi, Kei; Yamagishi, Junya; Kawazu, Shin-ichiro; Xuan, Xuenan. |
| Cysteine-based peroxidases, known as peroxiredoxins (Prx) or thioredoxin peroxidases (TPx), are important antioxidant enzymes that prevent oxidative damage caused by reactive oxygen species (ROS). In this study, we identified a novel mitochondrial 2-Cys Prx, BbTPx-2, from a bovine Babesia parasite, B. bovis. BbTPx-2 complementary DNA (cDNA) encodes a polypeptide of 254 amino acid residues. This protein has a mitochondrial targeting peptide at the N-terminus and two conserved cysteine residues of the typical 2-Cys Prx. By using a thiol mixed-function oxidation assay, the antioxidant activity of recombinant BbTPx-2 was revealed, and its antioxidant activity was comparable to that of a cytosolic 2-Cys Prx from B. bovis, BbTPx-1. Notably, we confirmed that... |
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Palavras-chave: Antioxidant activity; Babasia bovis; Mitochondria; Peroxiredoxin. |
| Ano: 2016 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4487 |
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| MASATANI, Tatsunori; ASADA, Masahito; ICHIKAWA-SEKI, Madoka; USUI, Miho; TERKAWI, Mohamad A.; HAYASHI, Kei; KAWAZU, Shin-ichiro; XUAN, Xuenan; 河津, 信一郎; 玄, 学南. |
| Peroxiredoxins (Prxs) are a family of antioxidant enzymes. Here, we cloned a 2-Cys Prx, BgTPx-1, from the canine Babesia parasite B. gibsoni. Sequence identity between BgTPx-1 and 2-Cys Prx of B. bovis was 81% at the amino acid level. Enzyme activity assay by using recombinant BgTPx-1 (rBgTPx-1) indicated that BgTPx-1 has antioxidant activity. Antiserum from a mouse immunized with rBgTPx-1 reacted with parasite lysates and detect a protein with a monomeric size of 22 kDa and also a 44 kDa protein, which might be an inefficiently reduced dimer. BgTPx-1 was expressed in the cytoplasm of B. gibsoni merozoites. These results suggest that the BgTPx-1 may play a role to control redox balance in the cytoplasm of B. gibsoni. |
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Palavras-chave: Antioxidant activity; Babesia gibsoni; Canine; Peroxiredoxin. |
| Ano: 2014 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3925 |
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| Los,Paulo Ricardo; Simões,Deise Rosana Silva; Leone,Roberta de Souza; Bolanho,Beatriz Cervejeira; Cardoso,Taís; Danesi,Eliane Dalva Godoy. |
| Abstract: The objective of this work was to develop dehydrated soup formulations using flour from peach palm by-product (PPB), Spirulina platensis or spinach, as well as to evaluate their composition by physical, chemical, instrumental, and sensory methods. Four formulations were developed: standard, PPB flour, PPB flour and S. platensis, and PPB flour and spinach. The samples were analyzed for proximate composition, chlorophyll content, total phenolic compounds, antioxidant activity, color, viscosity, water absorption, and microbiological parameters. The sensory characterization was performed by the check-all-that-apply method. The soups containing spinach or S. platensis presented the highest protein contents of 3.3 and 4.6 g 100 g-1, respectively. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bactris gasipaes; Spinacia oleracea; Antioxidant activity; Check-all-that-apply; Fibers; Functional foods. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001101259 |
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| Sumaya Martinez, Ma. Teresa; Suarez Dieguez, Teodoro; Cruz Cansino, Nelly del Socorro; Alanis Garia, Ernesto; Sampedro, Jose G.. |
| In the world, Mexico is the major producer of prickly pears and also has the largest number in varieties. However, in addition to its highly seasonal production, prickly pears are consumed just by a small segment of the Mexican population. Therefore, the promotion of prickly pears consumption in the form of new derivative products by emphasizing its bioactive properties seems to be a possible solution to its low consumption. Recent studies from European and Asian laboratories showed that some prickly pears varieties have a significant antioxidant activity. In Mexico, prickly pears producers are looking for new ways of commercialization. In this regard, similar studies are underway surveying those varieties from the highly producing Mexican states with the... |
| Tipo: Journal Article |
Palavras-chave: Prickly pears; Antioxidant activity; Innovation; Functional food.; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/93913 |
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| Lima,CB; Migotto,DL; Oliveira,GR; Souza,TC; Santana,RO; Castejon,FV; Tanure,CBGS; Santana,AP; Stringhini,JH; Racanicci,AMC. |
| ABSTRACT In order to evaluate the antioxidant effects of barbatimão (BAR) or pacari (PAC) on chicken meat oxidative stability and quality, seven dietary treatments containing in three different BAR and PAC concentrations (200, 400 and 600ppm) plus a negative control (CONT) were fed to 350 broilers from 1 to 41 days of age. Ten birds per treatment were slaughtered to collect breast and thigh meat to evaluate pH, color (L*, a*, b*), cooking weight loss (CWL), and shear force (SF) 24 hours postmortem, and TBARS levels in precooked meatballs stored chilled for 8days. The dietary supplementation with BAR and PAC extracts did not affect pH and color, but reduced (p<0.05) SF in breast meat compared with CONT suggesting improved tenderness. PAC200 increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant activity; Brazilian plants; Broiler meat; Quality attributes; TBARS. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400669 |
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| Silva,Daiana V.; Oliveira,Daniel E. C. de; Resende,Osvaldo; Silva,Marco A. P. da; Barcelos,Keyla R.. |
| ABSTRACT Baru (Dipteryx alata Vogel) is a native tree of the Cerrado. The drying and milling process can be an alternative for the use and conservation of baru fruits. The objective of this study was to evaluate the effect of drying on the nutritional characteristics of the epicarp + mesocarp flour of baru fruits. The fruits were collected in the municipality of Santa Helena de Goiás, Goiás, sanitized and submitted to drying in an oven with air circulation at temperatures of 40, 60, 80 and 100 ºC until they had a constant mass. The analyses were performed in triplicate and the results evaluated by analysis of variance and Tukey test (p ≤ 0.05). Flours produced from dehydrated fruits had a reduction in lipid content (treatments 100 °C), energy value (60 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dipteryx alata Vogel; Antioxidant activity; Phenolics; Carotenoids. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100065 |
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| Lima,Annete de Jesus Boari; Corrêa,Angelita Duarte; Saczk,Adelir Aparecida; Martins,Mariana Pereira; Castilho,Rachel Oliveira. |
| Different solvents were evaluated for the extraction of jabuticaba anthocyanin pigments, identifying, quantifying and verifying the stability of the anthocyanins, as well as the conduction of three antioxidant activity assays and determination of the vitamin C levels. The maceration with ethanol acidified with HCl 1.5 mol L-1 (85:15) provides better pigment extraction and stability. The skin is anthocyanin rich, presenting 1.59 and 2.06 g 100 g-1 of dry matter in the Paulista and Sabará varieties, respectively. Cyanidin 3-glucoside is the majority pigment of the skins, followed by delphinidin 3-glucoside. The highest level of vitamin C was found in the skins and seeds of both varieties. It was verified that the skins, presented more antioxidant activity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jabuticaba; Anthocyanin; Method of extraction; Vitamin C; Antioxidant activity. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300023 |
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| Registros recuperados: 101 | |
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