Brazilian varieties of acerola (Malpighia emarginata DC.) produced under tropical semi-arid conditions: Bioactive phenolic compounds, sugars, organic acids, and antioxidant capacity.

Acerola fruit has gained prominence for its high nutraceutical value, associated with high levels of ascorbic acid and phenolic compounds. The objectives of this study were to analyze the chemistry composition and antioxidant capacity in seven Brazilian varieties of acerola. All acerola genotypes were harvested at the red ripe maturity stage, and the fruit were subjected to metabolite analyses by High-Performance Liquid Chromatography. The varieties presented high levels of ascorbic acid and malic acid. The main sugars observed in acerola were glucose and fructose. Cyanidin-3-rhamnoside was the main phenolic compound in the fruit (149-682 mg/kg FW), which had higher concentration in the varieties BRS 235-Apodi, BRS 236-Cereja, and BRS 237-Roxinha. Other phenolic compounds also observed in the fruit were quercetin-3-glucoside, isorhamnetin, catechin, procyanidin A2, naringenin, hesperidin, chlorogenic acid, and trans-resveratrol. In conclusion, the observed wide range of acerola nutraceutical properties was related to the high genetic variability among genotypes. PRACTICAL APPLICATIONS: Brazil is the world's largest producer, consumer and exporter of acerola, with commercial orchards distributed all over the country. According to the Brazilian Ministry of Agriculture, Livestock and Supply, about eighteen registered varieties of acerola have been produced in the country. Among them are the varieties developed by Breeding Programs at the Brazilian Agricultural Research Corporation (Embrapa). Despite the great diversity of studies about acerola composition, only a few studies have focused on analyzing specific varieties. Therefore, limited information is currently available on the profile of metabolites of commercial interest in acerola varieties, such as sugars, organic acids and some phenolics. This study showed that acerola nutraceutical properties was highly dependent on the genotype.

Effects of successive harvesting in the same year on quality and bioactive compounds of grapes and juices in semi-arid tropical viticulture.

The technological and polyphenolic parameters of grapes for juice processing obtained from successive harvests were studied in semi-arid tropical viticulture. Red grapes "BRS Violeta" and "Isabel Precoce" were harvested during the same year and analyzed based on a multivariate approach that included climatic variations. The grapes were marked by variations in flavonoid compounds, particularly anthocyanins. Temperature, global radiation, air velocity and evapotranspiration rates were associated with higher accumulation of bioactive polyphenols in grape berries and juices. The temperatures in February were associated with higher antioxidant activity in grape peels, while the highest thermal amplitude in August and November favored the accumulation of anthocyanins up to 564 mg kg-1. Flavanols and procyanidin compounds were more abundant in seeds when the maximum thermal amplitude was 13.8 °C. The climatic data together with the polyphenolic results point out useful information about appropriate periods for harvesting grapes with high phenolic content in tropical areas.

Lasiothyris luminosa (Razowski & Becker) (Lepidoptera: Tortricidae): a New Grapevine Pest in Northeastern Brazil.

The little-known Neotropical tortricid moth Lasiothyris luminosa (Razowski & Becker) is reported for the first time as a grapevine pest in northeastern Brazil. A diagnosis based on morphological characters including the genitalia is provided for both sexes, together with a preliminary description of economic damage caused by the larval stage on flowers and fruits. In addition, we sequenced a partial region of the cytochrome oxidase subunit I gene from specimens from the region and reconstructed phylogenetic relationships using representative lineages of closely related tortricids as terminals.

Ciências Sociais e saúde no ciclo de pesquisas no Vale do São Francisco (1950-1960) / Social Sciences and health in the research cycle of São Francisco Valley (1950-1960)

No período entre 1940 e 1960, houve ampla produção acadêmica no campo da sociologia e da antropologia dos chamados estudos de comunidade no Brasil. Na era dos grandes projetos no âmbito das Ciências Sociais na década de 1950, envolvendo pesquisas sobre relações raciais, educação e saúde, cabe destacar as pesquisas realizadas no Vale do São Francisco, sob a coordenação do sociólogo Donald Pierson. Privilegia-se, neste artigo, o tema da saúde nesses estudos como um meio para tornar inteligíveis questões relevantes à época, a saber: resistências culturais à mudança; relações entre tradição e modernidade, tensões e complementaridades entre conhecimento científico e práticas populares de cura, entre outros. O exame das pesquisas do Projeto do São Francisco permitiu identificar que a questão da saúde, atrelada aos aspectos socioeconômicos e culturais, emerge como uma chave para o conhecimento das condições de vida e da realidade social das comunidades investigadas. Os cientistas sociais buscaram descrevê-las de maneira pormenorizada e abrangente, tendo o processo de mudança cultural como principal eixo de investigação. Neste artigo apresentamos as pesquisas que compuseram o referido projeto e mostramos como os cientistas sociais abordaram o tema da saúde em seus trabalhos. Ligados pelo tema da saúde, as Ciências Sociais e o contexto do desenvolvimento dos anos 1950 encontram-se reunidos no Projeto do São Francisco, cuja investigação nos permite compreender a dinâmica da mudança social naquele período.

Between 1940 and 1960, there was extensive academic research in the field of sociology and anthropology of so-called community studies in Brazil. In the era of large projects in the social sciences in the 1950s, involving research on race relations, education and health, we highlight the research conducted in the São Francisco Valley, under the coordination of the sociologist Donald Pierson. Attention is given in this paper to the issue of health in these studies as a means to make intelligible the relevant issues at the time, namely: cultural resistance to change, relations between tradition and modernity, tensions and complementarities between scientific knowledge and folk healing practices, among others. The examination of the research project of San Francisco identified the issue of health, linked to socioeconomic and cultural aspects, emerges as a key to the knowledge of living conditions and social reality of the communities investigated. Social scientists have sought to describe them in detail and comprehensively, taking the process of cultural change as the main axis of research. This paper presents the research that formed the said project and shows how social scientists have addressed the issue of health in their work. Linked by the theme of health, social sciences and the development context of the 1950s are gathered in the San Francisco Project, whose research allows us to understand the dynamics of social change in that period.

Estudos de comunidade, ciências sociais e saúde: o ciclo de pesquisas no Vale do São Francisco na década de 1950 / Community studies, socials sciences and health: the cycle of researches in the Vale do São Francisco in the 1950s

Esta dissertação aborda o conjunto de pesquisas de comunidades realizado no âmbito do Projeto de Pesquisas no Vale do São Francisco, estabelecendo relações com o processo de institucionalização das Ciências Sociais no Brasil e o processo dedesenvolvimento na década de 1950. Meu argumento é que, diferente das críticas que predominaram nos anos 1950 e 1960, os Estudos de Comunidade contribuíram para a análise do tema da mudança social no país. O Projeto do São Francisco foi organizado e dirigido pelo sociólogo norte-americano Donald Pierson nos anos 1950. Representa aconvergência de questões fundamentais naquele período, especialmente no que concerne à investigação do processo de mudança social por que passavam diversas comunidades do interior do país, e à temática do desenvolvimento. Pierson contou com a colaboração de Alceu Maynard Araújo, Alfonso Trujillo Ferrari, Esdras Borges Costa, Fernando Altenfelder Silva, Levy Cruz e Octavio da Costa Eduardo, seus alunos e colegas de trabalho na Escola Livre de Sociologia e Política de São Paulo. Os Estudos de Comunidade tiveram um papel fundamental na institucionalização das Ciências Sociais no Brasil, que então passavam por um momento de afirmação de sua cientificidade. Nesse processo, os Estudos de Comunidade foram considerados por diversos cientistas sociais um caminho mais eficaz para superar uma produção de caráter mais ensaístico. Por outro lado, esses estudos surgiam com o propósito prático de oferecer subsídios ao trabalho de técnicos responsáveis pela implantação de projetos de desenvolvimento e mudança social.

This study examines the Valley of the São Francisco Research Project’s studies, related to the process of institutionalization of Social Sciences in Brazil and development process, which marked 1950 decade. Although the criticism that predominate in the 1950’sand 1960’s, my argument is that the Community Studies contributed to analyze social changes in Brazil. The São Francisco Project was organized and directed by American sociologistDonald Pierson in the 1950’s. It represents the convergence of important questions at that time, specially about investigations of rural communities’ social changes and ideas ofdevelopment. Pierson counted with collaboration of Alceu Maynard Araújo, Alfonso Trujillo Ferrari, Esdras Borges Costa, Fernando Altenfelder Silva, Levy Cruz e Octavio da Costa Eduardo, his students and colleagues at Free School of Sociology and Politics of São Paulo.The Community Studies played a fundamental role in the institutionalization of the Social Sciences in Brazil, which at that time had been going through a period of affirmation of its scientificity. In this process, the Community Studies were considered by social scientists amore effective way to overcome a more essayistic approach. On the other hand, these studies would come in order to offer subsidies to the work of technicians who were responsible forimplementing projects of social development and change. The São Francisco Project proposed a detailed investigation of many aspects ofsociocultural structure of rural communities, and it was incorporated to development conjuncture by the possibility of making intelligible: 1) communities’ culture to changesagents (administrators, physicians, agronomists, etc.), so that their actions would have the desired effect; 2) the strategies of resistance to changes, observed between rural populations,considered obstacles to development; and 3) the social change process in assimilable terms to rural populations...