Ciência Rural最新文献

Nutritional composition and antioxidant and cancer chemopreventive activities of fruits of Psidiummyrtoides (O. Berg) Psidiummyrtoides（O. Berg）果实的营养成分、抗氧化和癌症化学预防活性

Ciência Rural Pub Date : 2024-07-01 DOI: 10.1590/0103-8478cr20230360

Camile Zanichelli da Costa Cassiano, Karla Lírio Soares, P. B. Batista, Stephano Marques, M. M. Maróstica Júnior, S. Bogusz Junior, Oscar Núñez, M. Fronza, D. Endringer, Rodrigo Scherer

{"title":"Nutritional composition and antioxidant and cancer chemopreventive activities of fruits of Psidiummyrtoides (O. Berg)","authors":"Camile Zanichelli da Costa Cassiano, Karla Lírio Soares, P. B. Batista, Stephano Marques, M. M. Maróstica Júnior, S. Bogusz Junior, Oscar Núñez, M. Fronza, D. Endringer, Rodrigo Scherer","doi":"10.1590/0103-8478cr20230360","DOIUrl":"https://doi.org/10.1590/0103-8478cr20230360","url":null,"abstract":"ABSTRACT: Psidiummyrtoides fruits food industries produce by-products such as liqueurs, ice cream, jellies, and juices. However, there needs to be more information about the nutritional composition of fruits, as well as the biological potential, mainly of seed flour.Therefore, the present study aimed to evaluate the nutritional composition and antioxidant and cancer chemopreventive activities of pulp and seed of fruits of Psidiummyrtoides. Moisture content, total minerals and mineral profile, total lipids and fatty acids profile, total proteins, dietary fiber (soluble and insoluble) and total carbohydrates were analyzed. Vitamins C and complex B, organic acids and the profile of phenolic compounds were also determined. DPPH and ABTS methods evaluated the antioxidant activity, and cancer chemopreventive activity was evaluated by quinone reductase induction and NF-κB inhibitory activity. The fruits are a good source of thiamine, iron, phosphorus, potassium, fiber, and protein. Linoleic acid was the major fatty acid in both pulp and seed. Quercetin (1600 µg/100g) and pyrogallol(819 µg/100g) were the major phenolic compounds pulp and seed, respectively. The fruits showed strong antioxidant capacity, mainly the seeds, and the ability to induce quinone reductase activity, highlighting a cancer chemopreventive activity. Seed flour has a high potential to enrich food, in addition to valuing agro-industrial by-products, where we can highlight 25%, 13% and 37% of the recommended daily intake for iron (1.6 mg/100g), phosphorus (58 mg/100g) and vitamin B1 (450 µg/100g), respectively, in addition to antioxidant and cancer chemopreventive activities.","PeriodicalId":10309,"journal":{"name":"Ciência Rural","volume":"238 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141692592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Antimicrobial susceptibility of Staphylococcus sp. and Escherichia coli isolated from captive Amazonian manatee (Trichechus inunguis) 从人工饲养的亚马逊海牛（Trichechus inunguis）体内分离出的葡萄球菌和大肠杆菌的抗菌药敏感性

Ciência Rural Pub Date : 2024-07-01 DOI: 10.1590/0103-8478cr20230140

Thayanne Gabryelle Viana de Souza, R. Xavier, J. A. Santana, Daniela Magalhães Drummond de Mello, Vera Maria Ferreira da Silva, Júlio César Câmara Rosa, H. C. P. Figueiredo, G. C. Tavares, R. O. S. Silva

{"title":"Antimicrobial susceptibility of Staphylococcus sp. and Escherichia coli isolated from captive Amazonian manatee (Trichechus inunguis)","authors":"Thayanne Gabryelle Viana de Souza, R. Xavier, J. A. Santana, Daniela Magalhães Drummond de Mello, Vera Maria Ferreira da Silva, Júlio César Câmara Rosa, H. C. P. Figueiredo, G. C. Tavares, R. O. S. Silva","doi":"10.1590/0103-8478cr20230140","DOIUrl":"https://doi.org/10.1590/0103-8478cr20230140","url":null,"abstract":"ABSTRACT: The Amazonian manatee (Trichechusinunguis) is an aquatic mammal threatened with extinction. However, few studies have investigated the pathogens in this species, which may affect both animal and human health. This study aimed to evaluate the frequency, distribution, and patterns of antimicrobial susceptibility of Staphylococcus spp. and Escherichiacoli colonizing the nasal and rectal cavities of Amazonian manatees kept in captivity at the National Institute for Amazonian Research (INPA) in the state of Amazonas, Brazil. Rectal and nasal swabs from 44 manatees of different ages were used in this study. The genus Staphylococcus was isolated from the nasal swabs of 32 (72.7%) animals, with two individuals harboring more than one species of Staphylococcus. S. sciuri was the most commonly isolated species. Resistance to penicillin was observed in 13 (40.6%) isolates, more frequent than the other antimicrobials tested (P = 0.01). E. coli was isolated from the rectal swabs of all animals, with phylogroup B1 being the most frequent among the strains obtained (P = 0.0008). Four isolates (6.8%) were positive for virulence factors, three of which were classified as enterotoxigenicE. coli (ETEC) and one as enteropathogenicE. coli (EPEC). To our knowledge, this is the first study to evaluate Staphylococcus spp. and E. coli in Amazonian manatee samples. This study revealed nasal colonization by Staphylococcus spp., mainly S. sciuri, and diarrheagenicE. coli isolates, including antimicrobial-resistant strains.","PeriodicalId":10309,"journal":{"name":"Ciência Rural","volume":"48 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141689836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SSR and ISSR markers in assessing genetic diversity in Gallus gallus domesticus: a quantitative analysis of scientific production SSR和ISSR标记在家鸡遗传多样性评价中的应用:科学成果的定量分析

Ciência Rural Pub Date : 2020-01-01 DOI: 10.1590/0103-8478cr20190401

Mauricio Sérgio Ferreira Soares da Silva Junior, Alberto Alexandre de Sousa Borges, Sárvia Rafaelly Nunes Santos, Vanessa Gomes de Moura, Geice Ribeiro da Silvana, A. C. O. Dias, Adriana Mello de Araújo, José Williams Gomes de Oliveira Filho

{"title":"SSR and ISSR markers in assessing genetic diversity in Gallus gallus domesticus: a quantitative analysis of scientific production","authors":"Mauricio Sérgio Ferreira Soares da Silva Junior, Alberto Alexandre de Sousa Borges, Sárvia Rafaelly Nunes Santos, Vanessa Gomes de Moura, Geice Ribeiro da Silvana, A. C. O. Dias, Adriana Mello de Araújo, José Williams Gomes de Oliveira Filho","doi":"10.1590/0103-8478cr20190401","DOIUrl":"https://doi.org/10.1590/0103-8478cr20190401","url":null,"abstract":"ABSTRACT: Poultry meat is a major source of animal protein in the world. Research indicates a high inbreeding rate derived from a relative absence of heterozygous subpopulations of chicken from different suppliers. Molecular markers can provide information for the genetic basis of chicken consumed in rural areas and help establishing a chicken database for product quality and warranty. The bibliometric research, comprises between 1994 and 2018, from five previously selected databases: Google Scholar, PubMed, ScienceDirect, Scopus and Web of Science, using the following descriptors: ‘microsatellites’, ‘SSR’, ‘ISSR’, ‘genetic variability’ and ‘genetic diversity’, all of them coupled to ‘chicken’ and/or ‘birds’ results in 66 scientific publications. The publications were then categorized according to their titles to the use of ISSR or SSR markers. They were also addressed by countries according first author cited. The publications data appointed that countries with the height production of poultry meat and hens are the most interested in the genetic diversity study of these species. The SSR markers, due to its more specific characteristic, are more frequently applied to genetic diversity assignment, compared to ISSR.","PeriodicalId":10309,"journal":{"name":"Ciência Rural","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81671750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Transmission of exchange rate variation to Brazilian pulp export prices 汇率变动对巴西纸浆出口价格的影响

Ciência Rural Pub Date : 2020-01-01 DOI: 10.1590/0103-8478cr20190603

L. Copetti, D. Coronel

引用次数: 0

Effects of different concentrations of sodium azide and chloramphenicol on the preservation of raw milk samples 不同浓度叠氮化钠和氯霉素对原料奶样品保存的影响

Ciência Rural Pub Date : 2020-01-01 DOI: 10.1590/0103-8478cr20190425

Franciele Rampazzo Vancin, B. Webber, C. Bondan, L. Daroit, L. R. Santos, L. B. Rodrigues

{"title":"Effects of different concentrations of sodium azide and chloramphenicol on the preservation of raw milk samples","authors":"Franciele Rampazzo Vancin, B. Webber, C. Bondan, L. Daroit, L. R. Santos, L. B. Rodrigues","doi":"10.1590/0103-8478cr20190425","DOIUrl":"https://doi.org/10.1590/0103-8478cr20190425","url":null,"abstract":"ABSTRACT: The preservation of milk samples for microbiological analyses by the Brazilian Network of Milk Quality Control Laboratories requires the addition of preservatives to maintain the microbiota from the time of sample collection to the moment of analysis. The number of microorganisms can change as a result of the active ingredients and concentration of the preservative, as well as due to interactions between the preservatives, incubation time, and packaging temperature. The objective of this research was to evaluate the conservation potential of different concentrations of sodium azide and chloramphenicol on the analytical shelf life of milk samples. Two farms were selected, one with a low bacterial count and one with a high bacterial count. The milk was dispensed into sterile vials and tested after the addition of the usual concentrations of sodium azide and chloramphenicol, doubled concentrations, tripled concentrations, and as a control, without preservatives. The samples were incubated at 3 ± 1 °C, 6 ± 1 °C, and 9 ± 1 °C for 14 days and analyzed daily for their bacterial count by flow cytometry. The tripled preservative concentrations improved conservation, increasing the timespan of the analytical viability of the samples without altering the results.","PeriodicalId":10309,"journal":{"name":"Ciência Rural","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81622429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3