Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2015-08-04T00:46:23Z No. of bitstreams: 1 Disserta??o_Tamara_Tana.pdf: 823783 bytes, checksum: b47d6203bd51aea839cf2df6a5296331 (MD5) / Made available in DSpace on 2015-08-04T00:46:23Z (GMT). No. of bitstreams: 1 Disserta??o_Tamara_Tana.pdf: 823783 bytes, checksum: b47d6203bd51aea839cf2df6a5296331 (MD5) Previous issue date: 2015-02-26 / Physalis genus belongs to the Solanaceae family, and shows species with great economic potential due to the production of secondary metabolites and their fruits rich in vitamins and other nutrients. This study aimed to characterize the phenology, productivity and evaluate physical and biochemical parameters of Physalis angulata, Physalis ixocarpa, Physalis philadelphica and Physalis pubescens fruits along the maturation period. Were determined days after sowing (DAS) for the occurrence of each stage and assessed length and stem diameter in three sowing dates. To biometric characterize the fruits were evaluated weight, longitudinal and transverse diameter, and biochemical characterization were quantified the protein content, reducing sugars, sucrose and total soluble sugars fruits in three maturation levels determined by the fruit calyx color, which were taken for determination of the content of chloroplastid pigments with DMSO. Physalis plants are susceptible to high temperatures and low rainfall, P. angulata is the most tolerant soil and climatic conditions in the region. Cultivation started in April provides a better plant growth, with productivity similar to regions where the crop has already been established. The ripe fruits had higher fruit and more sugar content, and must be harvested in the third stage of maturity: straw color to P. angulata, when cup rupture to P. ixocarpa, and yellow for P. philadelphica and P. pubescens. / O g?nero Physalis pertence ? fam?lia Solanaceae, e apresenta esp?cies com grande potencial econ?mico devido ? produ??o de metab?litos secund?rios e seus frutos ricos em vitaminas e demais nutrientes. Este trabalho teve como objetivo caracterizar a fenologia e avaliar par?metros f?sicos e bioqu?micos dos frutos ao longo do per?odo de matura??o de esp?cies de Physalis. O experimento foi realizado na Unidade Horto Florestal, localizada em Feira de Santana/BA. As mudas foram semeadas em estufa e transplantadas ao campo experimental quando apresentavam aproximadamente 20cm. Foram determinados os dias ap?s a semeadura (DAS) para ocorr?ncia de cada fenofase e avaliados semanalmente o comprimento e o di?metro do ramo principal em fun??o de tr?s ?pocas de semeadura das esp?cies Physalis angulata, Physalis ixocarpa e Physalis philadelphica. Para a caracteriza??o biom?trica dos frutos de P. angulata, P. ixocarpa, P. philadelphica e P. pubescens, foram avaliados a massa, di?metro longitudinal e transversal m?dio, e para caracteriza??o bioqu?mica foram quantificados colorimetricamente os teores de prote?nas sol?veis, a??cares redutores, sacarose e a??cares sol?veis totais em tr?s n?veis de matura??o, determinados pela colora??o do c?lice que envolve o fruto, os quais foram retirados para determina??o do teor dos pigmentos cloroplast?dicos utilizando DMSO. As plantas das esp?cies de Physalis s?o suscet?veis a temperaturas acima de 30? e escassez de chuvas, sendo a P. angulata a mais tolerante as condi??es edafoclim?ticas da regi?o. O cultivo iniciado no m?s de abril proporciona um melhor desenvolvimento das plantas, com produtividade semelhante a regi?es onde o cultivo j? foi estabelecido, sendo a melhor ?poca de cultivo na regi?o de Feira de Santana. As esp?cies apresentaram frutos maiores e com maior teor de a??cares quando maduros, devendo ent?o ser colhidos no terceiro est?dio de matura??o, cor de palha para P. angulata, quando ocorre o rompimento do c?lice para P. ixocarpa, e amarelo para P. philadelphica e P. pubescens.

A Solanum lycocarpum é uma planta encontrada em quase todos os estados do Brasil, podendo ser ingerida por animais em idade fértil e em condições naturais. Os frutos desta planta possuem glicoalcalóides esteroidais com propriedades semelhantes aos esteróides. Neste estudo investigou-se os efeitos na esfera reprodutiva causados pela ingestão de S. lycocarpum durante a puberdade de ratos. Os frutos secos foram administrados na ração (10%) desde o desmame até a idade adulta (70dias). Foram avaliados o peso corpóreo e de órgãos, o comportamento e a orientação sexual, os níveis de hormônios sexuais nas fezes, a bioquímica sérica, os níveis de neurotransmissores centrais e os achados anatomopatológico, tanto de ratos machos como de fêmeas. Observou-se os seguintes resultados: 1) Redução no peso corpóreo dos machos e das fêmeas; 2) Em machos, o peso relativo aumentou nos epidídimos, vesícula seminal e testículos; 3) Não houve diferenças no hemograma entre os grupos controle e experimental de ambos os sexos; 4) Alterações na bioquímica sangüínea sugerem leve toxicidade em células musculares e hepática; 5) Em fêmeas, não constatou-se nenhuma alteração no ciclo estral e no comportamento sexual; enquanto nos machos houve melhora do comportamento sexual e 6) Os níveis de neurotransmissores do estriado foi modificado mas não os do hipotálamo. Esses achados indicam que a exposição a S. lycocarpum durante a puberdade prejudicou parâmetros da esfera reprodutiva, em particular, dos machos. / Solanum lycocarpum St. Hil, a toxic plant common in almost all states of Brazil, may be consumed by animals in fertile age and in natural condition. The fruits of this plant contain steroidal glycoalkaloids with steroid-like properties. Presently the reproductive effects of S. lycocarpum fruit ingestion during puberty were investigated. The dried fruits were administered in the diet (10%) from the weaning up to adult age (70 days). The body and organs weights, sexual behavior as well as sexual orientation, the feces hormonal levels, hemogram and biochemical blood evaluations, hypothalamic and striatal neurotransmitter levels, and anatomopathological studies of male and female rats were performed. The results showed: 1) a reduced body weight in male and female; 2) in male, an increased epydidimis, seminal vesicle and testis relative weights; 3) no differences of controls and experimental groups of both sex in the hemogram; 4) blood biochemical alterations meaning slight toxicity in muscular and hepatic cells; 5) in female, no interference was detected in estrous cycle and sexual behavior; an improvement of male sexual behavior was observed; 6) that striatal neurotransmitter levels were modified but not in the hypothalamus. These results indicate that exposure to S. lycocarpum during puberty prejudiced the reproductive system, particularly in male rats.

Objective: Measures the impact of the Farmers’ Market Voucher program on weight, body mass index, waist circumference, during the 2016 summer on a rural, low-income population residing in Appalachian Kentucky. Background: Rural communities often have limited access to fresh fruits and vegetables (FV) which contributes to low levels of consumption. FV are calorie poor, nutrient dense and are inversely associated with inflammation markers, obesity, hypertension, and high blood glucose levels. Appalachian rural communities have a higher prevalence of obesity, diabetes, strokes, and death by heart attack when compared to the U.S. Farmers’ markets Methods: Pre-experimental intervention design examining FV consumption and variety. T-test used measuring biochemical outcomes, pre and post, participation, and voucher amount. Results: Medical clinic patients (n=308) and household members (n=89) participated in study. Patients had a decrease in blood glucose and waist circumference (p=0.0231, p=0.0014 respectively). Patients had greater blood glucose reductions when compared to household members (p < 0.001). Patients reported consuming more FV with greater variety. Conclusion: The Farmers’ Market Voucher program successfully increased FV consumption and had a positive effect on blood glucose and waist circumference. Future studies should examine cooking methods of this population.

The Center for Disease Control and Prevention (CDC) reports indicate that 8% and 6.3% of Kentuckians consume enough fruits and vegetables, respectively. The Plate It Up! Kentucky Proud (PIUKP) project is a recipe-development project that aims to boost produce consumption by incorporating local fruits and vegetables. The purpose of this study was to implement promotional strategies using PIUKP recipes at farmers’ markets and determine their effects on consumers’ intent of purchasing and preparing the produce. The study was conducted at nine farmers’ markets across Kentucky (n=300) in collaboration with Cooperative Extension agents/assistants. The consumers’ impression of the sample was positively associated with their intent to purchase fruits and vegetables the same day (t = 0.36; p < 0.0001), in future (t=0.43; p < 0.0001), and prepare the respective recipes (t=0.51; p < 0.0001). Distribution of recipe cards was also positively correlated with consumers’ intent to prepare recipes (t=0.35; p < 0.0001). However, no significant association was found between the self-reported fruit and vegetable intake and their respective dermal carotenoid score. Findings from this study support the use of promotional strategies as a means to influence produce intake among farmers market consumers. Future studies can apply these strategies and explore the extent of effect they have on dietary intake.

Due to increased rates of childhood obesity since 2010, researchers have examined family environmental factors and family influences on children's consumption of healthy foods. While previous research has examined how factors such as food presentation and the food intake of other family members can predict a child's body mass index, there has been little research examining whether parent factors predict the amount of healthy foods children eat. This quantitative survey study examined whether certain parent factors, specifically parents' attitudes about food, parents' feeding styles, and parents' attachment styles, predicted the amount of fruits and vegetables children ate. Understanding the extent to which these factors predict children's actual consumption of healthy foods, rather than predicting their body mass index, will further inform the healthcare field about parents' role in their children's physical development. Family systems theory served as the theoretical foundation. Seventy-four parents of children ages 1 to 7 years completed an online survey containing items from the Caregiver Feeding Styles Questionnaire, the Relationship Structures Attachment Questionnaire, and the Parent Attitudes About Food Questionnaire. As well, they logged the amount of fruits and vegetables their child ate over a 1-week period. The results of the multiple regression analysis revealed an overall significance which suggested that the 3 parent factors together predicted the amount of fruits and vegetables that children ate; however, closer examination indicated that only parents' attachment style was a significant prediction of children's consumption of fruits and vegetables. The results of the study add to our understanding of the role that parents play in their children's eating habits and the influence of attachment on children's consumption of a nutrient-dense diet.

Direct sun drying is one of the oldest methods of food preservation. A drying method that utilizes solar energy while minimizing negative aspects of sun drying is a solar dryer. However, research about the quality characteristics of fruits and vegetables dried using a solar dryer compared to a traditional dryer is lacking. To measure this, apple, tomato and carrot slices, and grape halves and whole peas were prepared and dried using either a solar or FA dehydrator (FA), Consumer liking was measured using two sensory panels that asked panelists 9-point hedonic questions between like products. Quality differences were analyzed using a TA.XT2 texture analyzer. Color was measured using a Hunterlab colorimeter. There were no significant differences in consumer liking (p<0.05) between drying methods for any fruits and vegetables with regards to overall acceptability. Grapes, tomatoes and carrots all had significant differences in consumer liking with regards to appearance, which correlates well with observed differences in a* values. Consumers liked the aroma of solar-dried peas significantly more. The texture of FA grapes was liked significantly more than their solar counterparts, which likely contributed to consumers significantly ranking the FA grapes higher than their solar counterparts when asked to rank which one they prefer.

There were two primary aims of the present study. The first aim was to examine the relationships between work-interference-with-family (WIF) and specific eating behaviors (eating vegetables, fruits, snack foods) reported by employed mothers, as it relates to health criteria such as BMI. Related to this first aim, household coping strategies were proposed as playing a significant role in the relationship between WIF and eating behaviors. The second aim was to investigate the crossover of WIF to specific child eating behaviors via mother feeding practices or mother eating behaviors. Self-report and other-report survey data were collected from working mothers and their children (recruited from the YMCA Afterschool Program in Hillsborough County), yielding a sample of 262 employed mothers and 238 mother-child dyads. Mother self-report results supported a negative relationship between WIF and mother eating vegetables on work days, but no relationships emerged for eating fruits or snack foods. Regarding the role of coping in the context of the WIF - eating behavior relationship, results were more supportive of a suppression effect than of a moderating effect of coping. There was no support for an indirect relationship between WIF and BMI via eating behaviors. Analysis of the crossover hypotheses revealed support for a negative association between WIF and the mother's feeding practices (monitoring behaviors), but no evidence was found for the hypothesized meditational relationships between mother WIF and child eating behavior (via mother eating and mother feeding) using multisource data. However, the results of supplementary analyses using only mother-report data supported several of the meditational crossover relationships. The results have implications for theoretical development and future research in the growing area of work-family and health. Major findings regarding WIF and specific eating behaviors, coping, and mother vs. child report are discussed.

L'arboriculture de la Moyenne Vallée du Rhône, concurrencée par les pays à faible coût de production, subit une importante crise structurelle. Dans ce contexte, nous interrogeons les liens existants entre l'arboriculture et ses territoires. Ils peuvent en effet constituer des ressources mobilisées par les acteurs locaux pour développer des formes de valorisation territoriale. Le modèle productif historique de l'arboriculture de la Moyenne Vallée du Rhône, celui de bassin de production-expédition, est aujourd'hui remis en question par deux tensions opposées. La première, dite " centrifuge ", est exercée par les principaux expéditeurs qui élargissent leur aire d'approvisionnement au-delà de celle du bassin de production pour être capables d'offrir des volumes de fruits standardisés satisfaisant à la demande des grands distributeurs. A l'inverse, un ensemble de tensions " centripètes " produisent un effet de morcellement interne au bassin, résultant des initiatives d'identification territoriale des fruits portées par les producteurs. A l'intersection de ces tensions, les arboriculteurs développent des stratégies pour maintenir la viabilité économique de leurs exploitations. La tendance est d'ajouter aux circuits d'expédition existants de nouveaux débouchés qui valorisent plusieurs proximités entre production et consommation. Nous décrivons ainsi des " circuits de proximité " pluriels et multi-scalaires, où interviennent différents types de professionnels (grossistes, détaillants, IAA), de consommateurs (habitants ou plus éloignés) et de modes de commercialisation. S'articulant entre concurrence et complémentarité au bassin de production-expédition, ces circuits bénéficient de soutiens de la part des collectivités territoriales. La conclusion de la thèse propose une caractérisation des différents circuits de proximité ainsi qu'un cadre théorique pour penser la diversité des formes de valorisation territoriale en agriculture.

Les caractéristiques sensorielles peuvent être mesurées par des méthodes descriptives d'évaluation sensorielle, parmi lesquelles le profil conventionnel. Les résultats sensoriels de profil présentent une forte variabilité, due, d'une part aux différences entre les sujets du panel, et d'autre part à la variabilité intra-lot, et notamment aux différences existant entre les individus d'un échantillon. À ce jour, la variabilité des sujets est prise en compte et les méthodologies de collecte et d'analyse des données ont été adaptées dans ce but. Néanmoins, la variabilité intra-lot n'a pas été abordée, malgré le challenge qu'elle représente. Avec pour produit modèle la pomme, ce travail de thèse aborde la problématique de la variabilité intra-lot sous deux angles : la mesure de la variabilité et la réduction de la variabilité, dans le but d'obtenir une mesure sensorielle plus fiable. Premièrement, la capacité de discrimination du panel a été observée entre les variétés étudiées et entre les fruits de chaque variété, identifiés comme différents selon une mesure instrumentale. Deuxièmement, afin de prendre en compte la variabilité intra-lot, le modèle d'analyse de la variance classiquement utilisé en évaluation sensorielle a été adapté avec l'ajout d'un facteur fruit hiérarchisé au facteur variété. Cette adaptation implique le partage de chaque fruit par plusieurs sujets. L'application de ce modèle a démontré l'importance de la variabilité intra-lot et l'importance du choix du modèle pour obtenir des résultats plus pertinents. De plus, le modèle d'analyse de la variance déterminé a été adapté afin de distinguer désaccord pur entre les sujets et différences de dispersion. Enfin, une réduction de la variabilité effective est obtenue par le partage des fruits ou par une homogénéisation instrumentale, cette dernière étant dépendante de la variété et de la mesure choisie. Les résultats de ce travail apportent des clés méthodologiques pour l'obtention de résultats fiables dans la cadre de l'évaluation sensorielle de produits variables.

Tirta šilauogės (Vaccinium corymbosum L.) vaisių biologiškai aktyvių junginių (antocianų) kiekinė ir kokybinė sudėtis. Tyrimo tikslas. Ištirti Lietuvoje introdukuotų šilauogių (Vaccinium corymbosum L.) veislių uogų kokybinę ir kiekybinę sudėtį, bei įvertinti uogų, uogos luobelių, minkštimo ir išspaudų ekstraktų antioksidacinį poveikį. Sodinių šilauogių kultūra sukurta XX amžiaus pradžioje JAV. Į Lietuvą pirmosios Šilauogės įvežtos 1969-aisiais metais ir iki šiol tyrinėjamos Lietuvos mokslininkų. Šilauogės priskiriamos prie netradicinių augalų, kurie buvo introdukuoti praeitame šimtmetyje. Bendras antocianų kiekis šilauogių uogose nustatytas spektrofotometriniu metodu. Didžiausi antocianų kiekiai nustatyti uogų luobelėse („Rancocas“ veislės luobelėse). Mažiausi antocianų kiekiai nustatyti uogų minkštime. Kiekinė antocianidinų sudėtis nustatyta efektyviosios skysčių chromatografijos metodu. Atlikus tyrimus efektyviosios skysčių chromatogarfijos metodu, nustatyta, kad antocianidin�� kokybinė sudėtis uogoje ir jos dalyse yra identiška. Nustatyta, kad šilauogės uogose, luobelėse, minkštime ir išspaudose vyraujantis antocianidinas – malvidinas. Šio tyrimo metu siekta nustatyti ir įvertinti antioksidacinį šilauogių uogų, minkštimų, luobelių ir išspaudų poveikį.Šilauogės uogų ekstraktuose didžiausiu suminiu aktyvumu pasižymi „Berkeley“ veislė, kur inaktyvuoto DPPH laisvojo radikalo kiekis siekia 82,31 proc. / Qualitative and quantitative composition of anthocyanins in blueberry (Vaccinium corymbosum L.)fruits and their parts was assayed. The aim of our study was to evaluate total anthocyanin content and their composition in blueberries fruits, fruit skins, fruit pulp and pomace. For the quantification of total anthocyanins in fruits and their parts, spectrophotometrical assay was performed. The highest amount of anthocyanins was found in blueberry fruit skins ( in ‚Rancocas‘ cultivar skins). The lowest amount of anthocyanins found in blueberry friut pulp. High-performance liquid chromatography was applied for qualitative evaluation of individual anthocyanidins in the different material. Chromatographic analysis has shown that there are no differences in qualitative composition of anthocyanidins. In fruits and their parts, malvidin was found in the highest quantities. Difefernt cultivars of Vaccinium corymbosum L. species were analyzed for total antioxidant capacity. The highest amount of total antioxidant capacity was faud in ‚Berkeley‘ cultivar in fuits extract.