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Rice Drying,Storage and Processing:Effects of Post-Harvest Operations on Grain Quality

Rice science 2022年第1期29卷 16-30页

作者： Amanda MÜLLER marcela trojahn nunes Vanessa MALDANER Paulo Carteri CORADI Rosana Santos de MORAES Samuel MARTENS Andressa Fernandes LEAL Vladison Fogliato PEREIRA Cristielle König MARIN Post-Graduation Program in Agricultural Engineering Rural Sciences CenterFederal University of Santa MariaCamobi 97105-900Santa MariaRio Grande do SulBrazil Department of Agricultural Engineering Campus Cachoeira do SulFederal University of Santa MariaHighway Taufik Germano3013-Passo D’Areia 96503-205Cachoeira do SulRio Grande do SulBrazil

Various post-harvest processes of rice are commonly employed,especially during the off-season,to ensure its consumption feasibility,which often affect the grain *** forms of drying,storage and processing of rice are evaluated to identify their effects on grain *** drying has emerged as an alternative to the widely-used intermittent-drying and fixed-bed-dryer methods of drying paddy *** of drying-air temperatures(between 40℃ and 60℃)according to the rice variety can improve quality,especially for exotic *** stored grain in hygroscopic balance,with water content between 11%to 15%,at temperatures between 16℃ and 20℃ and with intergranular relative humidity near 60%,allows 12 months of storage in a controlled environment without significant *** innovations,notably the application of artificial refrigeration to grain stored in bulk in vertical cylindrical silos and the use of impermeable packaging for storage,ensure the conservation of grain *** different stages and equipments used to obtain polished,brown and parboiled rice result in significant changes in the nutritional value of rice because of the removal of the outermost layers of the *** reduces the nutritional value and physical homogeneity of *** rice retains more bioactive compounds and nutrients because it does not lose the outer layer of the grains in the polishing *** rice,although less nutritious than brown rice,has better grain integrity and milling yield and less loss of nutrients than white rice.

关键词： agricultural engineering post-harvest rice engineering quality in rice pre-processing rice process industry

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The influence of disturbance on driving carbon stocks and tree dynamics of riparian forests in Cerrado

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Journal of Plant Ecology 2018年第3期11卷 401-410页

作者： Matheus Henrique nunes marcela de Castro nunes Santos Terra Izabela Regina Cardoso de Oliveira Eduardo van den Berg Department of Plant Sciences University of CambridgeDowning StreetCambridge CB23EAUK Department of Forest Sciences Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil Department of Exact Science Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil Department of Biology Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil

Aims Riparian forests in the Brazilian Cerrado,also known as gallery forests,are very heterogeneous in structure,species composition and ecological features due to strong and abrupt variations of soil,hydrological and topographic ***,what are the variables driving forest carbon stock and productivity,mortality and recruitment in disturbed gallery forests?Methods We used 36 permanent plots data from a gallery forest in the Brazilian *** investigated how tree community dynam-ics vary in a gallery forest on two contrasting disturbance levels-logged and non-logged-across a topographic gradient intrinsically related to differences in moisture conditions,edge effects,as well as soil fertility and *** Findings Soil variables were reduced into principal components and we used structural equation modelling to disentangle covarying *** also included carbon stocks as a determinant variable of dynamics *** forest had 50%higher productivity than non-logged forest and streamside forest had aboveground carbon stocks 70%higher than the forest *** logging and natural disturbance drove variation in the carbon stocks which contributed to shaping productivity and recruitment *** from the river also drove mortality and carbon stock *** with high-carbon stocks favoured higher competition and lessened produc-tivity and recruitment *** soil fertility and texture are considered crucial components shaping forest dynamics,there was no clear influence of those variables on the present forest,probably because the strong effects of soil moisture,forest edge and distur-bance disrupted the correlation between soil and forest dynamics.

关键词： riparian vegetation topography soil properties disturbance gallery forest structural equation modelling

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Protection status as determinant of carbon stock drivers in Cerrado sensu stricto

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Journal of Plant Ecology 2020年第3期13卷 361-368页

作者： Kelly Marianne Guimarães Pereira Natielle Gomes Cordeiro marcela de Castro nunes Santos Terra marcela Venelli Pyles Christian Dias Cabacinha JoséMárcio de Mello Eduardo van den Berg Department of Biology Federal University of LavrasCampus UniversitárioCEP 37200-000LavrasMinas Gerais stateBrazil Department of Forest Sciences Federal University of LavrasCampus UniversitárioCEP 37200-000LavrasMinas Gerais stateBrazil Department of Forest Sciences Institute of Agrarian SciencesFederal University of Minas GeraisCampus Regional de Montes ClarosCEP 39.404-547Montes ClarosMinas Gerais stateBrazil

Aims Natural vegetation plays an important role in global carbon cycling and ***,the Cerrado(Brazilian savannah)is considered a carbon sink because of its intrinsic *** aim was to evaluate how the aboveground biomass and biodiversity relationship change between three Cerrado remnants with different protection status:a‘control area’(Legal Reserve area),a protected area(PA)and a non-protected area(Non-PA).Methods All three studied fragments are situated in northern Minas Gerais state,*** estimated the aboveground carbon stocks based on the forest *** also measured three dimensions of biodiversity metrics for each plot:functional trait dominance,taxonomic diversity and functional *** following functional traits were evaluated for the species:wood density,maximum diameter and seed *** carried out generalized linear models seeking to evaluate how carbon stocks,community-weighted mean(CWM)trait values,species richness and diversity,and functional diversity indices differ among the *** Findings The Cerrado areas without protection status had lower carbon stocks,species richness,species diversity,functional richness and functional dispersion,whereas both PA and Non-PA had lower CWM maximum diameter and seed size compared with the Legal Reserve control *** linear models showed that carbon stocks,species and functional richness metrics were correlated within and across sites,and thus,species richness could serve as a good proxy for functional richness and carbon *** carbon stocks were positively driven by species richness and CWM maximum diameter,while they were negatively driven by functional *** richness,species diversity and CWM seed size appeared in the set of best models,but with no significant direct effect on carbon ***,we concluded that absence of protection in the Cerrado areas decreases both species richness and carbon stocks.

关键词： functional traits biodiversity biomass storage Brazilian Savanna human impacts

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What can natural edges of gallery forests teach us about woody community performance in sharp ecotones?

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Journal of Plant Ecology 2017年第6期10卷 937-948页

作者： Gabriela Aparecida de Oliveira Coelho marcela de Castro nunes Santos Terra Hisaias de Souza Almeida Eduardo van den Berg Departamento de Ciências Florestais Universidade Federal de LavrasC.Postal 3037LavrasMG 37200-000Brazil Instituto de Recursos Naturais Universidade Federal de ItajubáC.Postal 50ItajubáMG 37500-903Brazil Departamento de Biologia Universidade Federal de LavrasC.Postal 3037LavrasMG 37200-000Brazil

Aims The diversity and structure of forest edges are a central issue in ***,most studies have focused on anthropogenic for-est edges,being natural ones least *** studied the com-munities of shrubs and trees in natural edges of gallery forests with the main goal of learning what are the main factors that shape the structure and diversity of these natural sharp *** We evaluated 10 gallery forest sites,allocating in each of them three 15×20 m *** plots were laid out in relatively rectilinear stretches of forest edges,respecting a minimal distance of 10 m between each *** they are permanent plots and meant to study eventual fluctuations in the forest-grasslands limits,we allocated the plots with their longest side parallel to the forest edge and covering perpendicularly 5 m of the grassland and 10 m of *** the plots we identified,mapped and measured all shrub and tree individuals with diameter at breast height(DBH)≥1 *** Findings Although many differences exist among the communities in terms of density and basal area,all of them were highly dense and had relatively low basal *** addition,both the number of individu-als and the basal area increased rapidly towards the forest *** results also revealed that the edge communities are composed mainly by small individuals that demand a great amount of *** the vertical stratification and the proportion of the functional groups are similar among the sites yet change quickly in the first 10 m of the forest ***,the floristic similarities were low among the communities mainly due to the species turnover within each ***,although the overall structure is constant in the studied edges,the low floristic similarity among them possibly indicates that the species within the same functional groups are sub-stituting each other across the *** older and seemingly stable,our results showed the gallery forest edges are quite simila

关键词： beta diversity edge effects ecotone forest-grassland transition functional groups.

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Water availability drives gradients of tree diversity,structure and functional traits in the Atlantic-Cerrado-Caatinga transition,Brazil

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Journal of Plant Ecology 2018年第6期11卷 803-814页

作者： marcela de Castro nunes Santos Terra Rubens Manoel dos Santos Jamir Afonso do Prado Júnior José Marcio de Mello José Roberto Soares Scolforo Marco Aurélio Leite Fontes Ivan Schiavini Aliny Aparecida dos Reis Inacio Thomaz Bueno Luiz Fernando Silva Magnago Hans ter Steege Departamento de Ciências Florestais Universidade Federal de LavrasCampus UniversitárioPO Box 3037LavrasMinas Gerais 37200-000Brazil Instituto de Biologia Universidade Federal de UberlândiaCampus Umuarama-Bloco 2DPO Box 593UberlândiaMinas Gerais 38400-902Brazil Applied Ecology and Conservation Lab Programa de Pós‐graduação Ecologia e Conservação da BiodiversidadeUniversidade Estadual de Santa CruzIlhéusBahia 45662-900Brazil Naturalis Biodiversity Center Vondellaan 55Postbus 95172300 RA LeidenThe Netherlands Coordenação de Botânica Museu Paraense Emílio GoeldiAv.Magalhães Barata 376PO Box 399BelémPara´66040-170Brazil

Aims Climate and soil are among the most important factors determin-ing variation in tree communities,but their effects have not been thoroughly elucidated to date for many vegetation *** this study,we evaluate how climate and soil gradients affect gradients of vegetation composition,species diversity and dominance,structure and functional traits(seed mass and wood density)using over 327000 trees in 158 sites distributed along environmental gradients in the transitions among the Atlantic forest,Cerrado and Caatinga in Minas Gerais State(MG),Brazil(nearly 600000 km2).Methods Gradients in species,genus and family abundance in addition to basal area,stem density,species diversity(Fisher’s alpha),domin-ance percentage,seed mass and wood density were correlated using multiple regressions with environmental variables,as summarized in four principal component analysis axes(two climatic-precipi-tation seasonality and temperature range-and two edaphic-soil fertility and soil moisture).Additionally,ordinary kriging maps were used to better illustrate the *** Findings Multiple regression models indicate that all variables but domin-ance percentage were affected by one or more of the environmental gradients,but the average R2 was low(26.25%).Kriging maps rein-forced the patterns observed in the regression *** seasonality and soil moisture gradients were the most important gra-dients affecting vegetation *** finding suggests that water availability is an important determinant of vegetation features in these vegetation transitions.

关键词： climate environmental gradient soil southeastern Brazil vegetation

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HPV Vaccine: Integrative Review of National and International Guidelines

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Health 2022年第12期14卷 1287-1298页

作者： Durval Silva Tavares Filho Camille Marcele Resende Rocha Elizabeth Bacha marcela Curvello Beltrão Lusitânia Maria de Barros Ádamo Newton Marinho Andrade Fabiana Torres Valadares Yasmin nunes Machado Centro Universitário Tiradentes (UNIT) Maceió Brasil

HPV (Human Papillomavirus) is an adenovirus of the Papillomaviridae family with approximately 200 subtypes (subdivided into low and high oncogenic risk groups), responsible for almost 99% of cervical cancers. Worldwide, there are more than 570,000 new cases and more than 311,000 women die each year from cervical cancer;for Brazil, the estimate is of more than 16,000 new cases per year. It is known that cervical cancer is one of the most easily preventable forms of cancer, as there is a highly effective vaccine against HPV. However, the morbidity and mortality rates correlated with human papillomavirus are still concerning, especially in less developed countries. In 2020, the WHO (World Health Organization) presented three goals to achieve by 2030 the worldwide extermination of cervical cancer;among these goals is vaccination. Is the world preparing for this battle? The present work is an integrative review, comparing national and international guidelines for HPV vaccination published in the last five years in the consulted databases, using the descriptors “cervical cancer”, “prevention” and “guideline” and the boolean operator “and”, from which nine articles were selected. The study made it possible to compare international and national guidelines for vaccination against HPV, showing that developed countries implemented the HPV vaccine longer ago and follow the WHO recommendations more rigorously and effectively than underdeveloped or developing countries. Adopting a single dose as a strategy, as suggested by the WHO in April 2022, could be an important step towards increasing coverage and providing protection for a greater number of girls who do not have access to HPV immunization.

关键词： Immunization Prevention Guidelines HPV Cervical Cancer

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