Scientia Plena最新文献_第2页

Biologia de nidificação de Euglossa cordata (Apidae: Euglossini) em áreas abertas no Extremo Sul Baiano 巴伊亚州远南开阔地区的 Euglossa cordata（鳞翅目：Euglossini）的筑巢生物学特性

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.048001

Flávio Silva de Souza Filho, Matheus Costa Prates, Welber Da Costa Pina

{"title":"Biologia de nidificação de Euglossa cordata (Apidae: Euglossini) em áreas abertas no Extremo Sul Baiano","authors":"Flávio Silva de Souza Filho, Matheus Costa Prates, Welber Da Costa Pina","doi":"10.14808/sci.plena.2024.048001","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.048001","url":null,"abstract":"The genus Euglossa comprises a group of approximately 110 cataloged bee species found throughout the Neotropical region. Among these species, Euglossa cordata (Linnaeus, 1758) has a wide distribution in different environments. This research aimed to analyze aspects of the nesting biology of E. cordata in open areas near Atlantic Forest fragments in the Extreme South of Bahia, Brazil. Collections were carried out using PET bottle traps, a methodology commonly employed for capturing Meliponini but adapted for the first time in this study, presenting a low cost and good applicability for studies on Euglossa bees. Ten traps were randomly distributed in open environments at the Federal Institute of Bahia. Three nests of E. cordata were found, with a total of thirteen brood cells and six female emergences in traps 2 and 3. In all nests, the cells were constructed in a circular manner and arranged close to each other. The cells were built with resin and had a scalene trapezoid shape with variations in diameter and length. Studies on bees of the Euglossini tribe, popularly known as orchid bees, often focus on males collected using odor baits. Conversely, studies on females and nesting biology are scarce. Thus, methodologies that facilitate the capture of females and Euglossini nests are extremely relevant for enhancing our understanding of the group.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"104 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141124862","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

Valorização inovadora do bagaço de malte: transformando subproduto da cerveja em pão integral rico em nutrientes 麦芽渣的创新增值：将啤酒副产品转化为营养丰富的全麦面包

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.041501

Carine Paula Dorigon, Rosicler Colet, I. Fernandes, Giovana Feltes, E. Rigo, J. Steffens, C. Steffens, Eunice Valduga

{"title":"Valorização inovadora do bagaço de malte: transformando subproduto da cerveja em pão integral rico em nutrientes","authors":"Carine Paula Dorigon, Rosicler Colet, I. Fernandes, Giovana Feltes, E. Rigo, J. Steffens, C. Steffens, Eunice Valduga","doi":"10.14808/sci.plena.2024.041501","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.041501","url":null,"abstract":"Este estudo teve como objetivo valorizar o bagaço de malte, subproduto do processamento de cerveja artesanal tipo Pilsen, por meio da obtenção de farinha de bagaço de malte e utilização na formulação de pães integrais (tipo pão). As formulações experimentais de pães foram criadas em uma unidade industrial, substituindo parcialmente a farinha de trigo integral por concentrações variadas de farinha de bagaço de malte (10, 20, 30 e 40%). Estas formulações foram então caracterizadas tanto nutricionalmente quanto às suas propriedades tecnológicas. Os resultados revelaram que a incorporação da farinha de bagaço de malte (granulometria variando de 0,15 a 1,50 mm) em pães integrais, com substituição parcial de até 20% da farinha de trigo integral, resultou em produtos que apresentaram excelente aceitação sensorial e possuíam características e qualidades sensoriais semelhantes às do pão feito inteiramente de farinha de trigo. Além disso, foi observado um aumento nutricional significativo, particularmente em termos de conteúdo de proteínas e potássio. Conclui-se que a utilização do bagaço de malte no preparo da farinha de trigo integral apresenta uma alternativa ambientalmente sustentável e que reduz o desperdício. Também permite o desenvolvimento de novos produtos, como o pão, devido aos benefícios nutricionais do bagaço do malte. Assim, é imprescindível explorar ainda mais o bagaço de malte, dados seus atributos nutricionais e sua abundante disponibilidade na indústria cervejeira.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"108 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125828","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

Agronomic potential of nine strawberry cultivars for two consecutive cycles in a greenhouse 九个草莓栽培品种在温室中连续两个周期的农艺潜力

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.040206

Alana Grando Dornelles, Thomas dos Santos Trentin, Claudia Petry, J. Chiomento

{"title":"Agronomic potential of nine strawberry cultivars for two consecutive cycles in a greenhouse","authors":"Alana Grando Dornelles, Thomas dos Santos Trentin, Claudia Petry, J. Chiomento","doi":"10.14808/sci.plena.2024.040206","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.040206","url":null,"abstract":"The lack of information about strawberry cultivation for more than one production cycle ends up generating high costs for producers to acquire daughter plants to reestablish their crops. Therefore, aiming at technical alternatives for a transition to more sustainable crops, the objective of this work was to investigate whether strawberry cultivars grown in a greenhouse for two cycles differ in terms of yield potential and fruit chemical quality. The treatments were nine strawberry cultivars (‘Albion’, ‘Aromas’, ‘Camarosa’, ‘Camino Real’, ‘Fronteras’, ‘Merced’, ‘Monterey’, ‘Portola’, and ‘San Andreas’) and two production cycles (2019/2020 and 2020/2021), arranged in a randomized block design with six replications. The results showed that in the second cycle the ‘Aromas’, ‘Camarosa’, ‘Camino Real’, ‘Merced’, and ‘Monterey’ cultivars stood out in terms of the highest number of fruits produced. ‘Fronteras’ and ‘Merced’ had the highest total production of strawberries in the second cycle. ‘Merced’ and ‘Monterey’ produced the highest fruits in the first cycle and ‘Fronteras’ produced strawberries with the highest average fresh fruit mass in the second cycle. ‘Albion’ and ‘Camarosa’ stood out for the higher sugar content in the fruits produced. The least acidic and most flavorful strawberries were produced in the first cycle. In conclusion, strawberry cultivars grown in greenhouses for two cycles differ in terms of yield potential and chemical fruit quality. This study indicates that the nine cultivars can be grown for two consecutive cycles without compromising berry production.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"124 49","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125251","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

A novel compounded cyproheptadine hydrochloride oral solution: Accelerated stability study and effects on glucose and lipid metabolism in Wistar rats 新型复方盐酸环丙沙星口服溶液：加速稳定性研究以及对 Wistar 大鼠葡萄糖和脂质代谢的影响

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.044901

Karine Ferreira da Costa, Letícia Isabeli Silveira Cunha, Lucas Aparecido Gordilho, Gabriel Salerno Costa, Renê Oliveira do Couto, Valéria Ernestânia Chaves, Ana Julia Pereira Santinho Gomes

{"title":"A novel compounded cyproheptadine hydrochloride oral solution: Accelerated stability study and effects on glucose and lipid metabolism in Wistar rats","authors":"Karine Ferreira da Costa, Letícia Isabeli Silveira Cunha, Lucas Aparecido Gordilho, Gabriel Salerno Costa, Renê Oliveira do Couto, Valéria Ernestânia Chaves, Ana Julia Pereira Santinho Gomes","doi":"10.14808/sci.plena.2024.044901","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.044901","url":null,"abstract":"The present study developed a compounded oral solution (COS) containing an active component cyproheptadine hydrochloride (CY) in association with pharmaceutical adjuvants. The main objective is to demonstrate the stability of this solution and the in vivo effects on serum and liver parameters of glucose and lipid metabolism. After 180 days of analysis the COS showed physicochemical stability (pH and specific gravity) when submitted to different temperatures (24 °C and 40 °C), but the chemical stability, presented by the content of CY (%) in the formulation, showed that the degradation rate of CY increased 20x when submitted to a stress condition (40 °C). Male Wistar rats were treated with IOS 1.5 (industrial oral solution 1.5 mg.kg-1) or saline for 21 days and IOS 5.0 or COS (5 mg.kg-1) or placebo by gavage for 23 days. Treatment with IOS 1.5 increased liver cholesterol by 30 % without changing liver and body weight in this group. In contrast, treatment with IOS and COS (5 mg.kg-1) increased final body weight by 8 % compared to placebo. Interestingly, the COS group had increased liver glycogen accompanied by reduced food intake compared to IOS. However, COS and IOS 5.0 did not induce changes in adipose tissue weight, liver weight, as well as serum glucose, triacylglycerol and cholesterol levels. This work provides us with data that prove the stability of the compound solution at room temperature, as well as inducing an increase in the final body weight of rats with no alteration in glucose and lipid metabolism.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"101 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125245","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

Avaliação do óxido de grafeno como atenuador do efeito tóxico do alumínio na germinação de sementes de trevo persa 评估氧化石墨烯作为铝对波斯三叶草种子萌发毒性作用的减弱剂的效果

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.040201

Raquel Stefanello, Wagner Jesus da Silva Garcia, Theodoro da Rosa Salles, C. Rhoden

{"title":"Avaliação do óxido de grafeno como atenuador do efeito tóxico do alumínio na germinação de sementes de trevo persa","authors":"Raquel Stefanello, Wagner Jesus da Silva Garcia, Theodoro da Rosa Salles, C. Rhoden","doi":"10.14808/sci.plena.2024.040201","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.040201","url":null,"abstract":"O objetivo deste estudo foi analisar o efeito do óxido de grafeno na germinação de sementes de trevo Persa e seu possível efeito atenuante no estresse por alumínio. As sementes foram semeadas em papel substrato e testadas em concentrações variadas de óxido de grafeno, alumínio e/ou óxido de grafeno + alumínio concomitantemente. Em seguida, foram armazenados em câmara de germinação à temperatura de 20 °C e fotoperíodo de 12 h. Os nanomateriais foram caracterizados por espectroscopia Raman, difração de raios X, espectroscopia por transformada de Fourier e microscopia eletrônica de varredura. Foram avaliados a germinação das sementes e os parâmetros de crescimento das plântulas) (comprimento e massa seca). O nanomaterial não causou efeitos adversos na germinação de sementes de trevo Persa. Entretanto, a adição de alumínio acima de 125 mg L-1 foi considerada prejudicial, resultando em diminuição da germinação, do comprimento total e radicular e da massa seca das plântulas. No entanto, a exposição simultânea ao óxido de grafeno/alumínio não afetou o crescimento inicial nem os parâmetros de germinação das sementes.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"114 47","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125554","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

Addition of calcium carbonate in the synthesis of flexible polyurethane foams 在合成柔性聚氨酯泡沫中添加碳酸钙

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.043401

David Rodrigues Gomes, Lucas Repecka Alves, Giovanni Miraveti Carriello, Henrique Solowej Medeiros Lopes, Guilherme Manassés Pegoraro, Marcus Felippe De Jesus Barros, Fernanda Pereira Camargo, Carlos Eduardo Corrêa, Daniel Komatsu

{"title":"Addition of calcium carbonate in the synthesis of flexible polyurethane foams","authors":"David Rodrigues Gomes, Lucas Repecka Alves, Giovanni Miraveti Carriello, Henrique Solowej Medeiros Lopes, Guilherme Manassés Pegoraro, Marcus Felippe De Jesus Barros, Fernanda Pereira Camargo, Carlos Eduardo Corrêa, Daniel Komatsu","doi":"10.14808/sci.plena.2024.043401","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.043401","url":null,"abstract":"Within all their variability, foams constitute the largest segment in the polyurethane industry. Polyurethane is composed mainly of isocyanate (-N=C=O) and polyol (-OH) functional groups, presenting different characteristics by adding fillers. This polymer has a wide range of applications such as adhesives, coatings, varnishes, elastomers and foams. Aiming improvements in its thermal properties, calcium carbonate addition was investigated in proportions of 12.5%, 25% and 37.5% (w/w). This filler is widely used to change the properties of polymers, as it is easily found in nature and has a low cost. For the synthesis of polyurethane samples, isocyanate and polyol were reacted using \"one shot\" process. The obtained results demonstrated the change in the glass transition temperatures (Tg) of the material to higher values, which indicates a decrease in the mobility of the polymer chains. Also, an increase in decomposition temperature was observed via differential scanning calorimetry (DSC). With Fourier transform infrared spectroscopy (FTIR) analysis, it was possible to analyze that the material was successfully synthesized by the appearance of the characteristic bands of PU foams. Furthermore, with the addition of calcium carbonate, it was possible to identify the presence of two phases, which indicate that the material underwent changes in its crystallinity, identified through X-ray diffraction (XRD) analysis. Finally, it was possible to observe via optical microscopy (OM) analysis that the addition of filler significantly changed the morphology of the foams.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"125 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125135","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

Sources of fertilizers on the phytotechnical characteristics, oxidative stress and thymol production of Thymus vulgaris L. 肥料来源对百里香植物技术特征、氧化应激和百里酚产量的影响

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.040202

Alan da Cunha Honorato, João Francisco Amaral Maciel, Rafael Marlon Alves de Assis, Alexandre Alves de Carvalho, Gabriel Akira Nohara, José Eduardo Brasil Pereira Pinto, S. K. V. Bertolucci

{"title":"Sources of fertilizers on the phytotechnical characteristics, oxidative stress and thymol production of Thymus vulgaris L.","authors":"Alan da Cunha Honorato, João Francisco Amaral Maciel, Rafael Marlon Alves de Assis, Alexandre Alves de Carvalho, Gabriel Akira Nohara, José Eduardo Brasil Pereira Pinto, S. K. V. Bertolucci","doi":"10.14808/sci.plena.2024.040202","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.040202","url":null,"abstract":"The objective of this study was to assess the effects of different fertilizer sources on the phytotechnical characteristics, oxidative stress, and thymol production of Thymus vulgaris. The experiment was conducted in 3-dm³ pots containing soil:sand (2:1) + treatment (no fertilizer, organic fertilizer, or chemical fertilizer). The organic fertilizer was 8 kg m-2 of an equal mixture of bovine, goat, and quail manures. The variables assessed were leaf, stem, root, and total dry weights; chlorophyll and carotenoid contents; leaf nutrients; total polyphenols; total antioxidant capacity; oxygen radical absorption capacity; DPPH free radical scavenging activity; essential oil content; and thymol production, content, and yield. Organic fertilization significantly increased the variables assessed and reduced oxidative stress indicators. It resulted in gains in the dry weight of the plants and the accumulation of nutrients in dry leaves of T. vulgaris. For the quantitative parameters of the essential oil and thymol, organic fertilization was significantly higher than the other treatments, especially for thymol content and yield. T. vulgaris plants fertilized with organic fertilizer maximize their plant production and their yield of compounds of interest, such as thymol, possibly because these outputs indicate a balance between improved vegetative production and the elimination of reactive oxygen species.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"113 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125606","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

Production of high-quality seedlings of Handroanthus spongiosus (Bignoniaceae), native to a seasonally dry tropical forest 生产原产于热带季节性干旱森林的 Handroanthus spongiosus（Bignoniaceae）优质幼苗

Scientia Plena Pub Date : 2024-05-18 DOI: 10.14808/sci.plena.2024.040205

Jailton de Jesus Silva, Claudineia Regina Pelacani, Raquel Araujo Gomes, Jamille Cardeal da Silva, D. Signor, Bárbara França Dantas

引用次数: 0

The micronucleus test in Ameiva ameiva (Squamata: Teiidae) in riparian forests in the Central Cerrado, Brazil 巴西中部塞拉多地区河岸森林中 Ameiva ameiva（有鳞目：缇科）的微核试验

Scientia Plena Pub Date : 2024-02-21 DOI: 10.14808/sci.plena.2024.018001

Luana Almeida Souza, Marcelino Benvindo-Souza, Rinneu Elias Borges, Bruno Barros Bittar, Murilo Souza Andrade, Edmar Pereira Victor-Júnior, Camilla De Souza Correia, Seixas Rezende Oliveira, W. Vaz-Silva, L. R. de Souza Santos

{"title":"The micronucleus test in Ameiva ameiva (Squamata: Teiidae) in riparian forests in the Central Cerrado, Brazil","authors":"Luana Almeida Souza, Marcelino Benvindo-Souza, Rinneu Elias Borges, Bruno Barros Bittar, Murilo Souza Andrade, Edmar Pereira Victor-Júnior, Camilla De Souza Correia, Seixas Rezende Oliveira, W. Vaz-Silva, L. R. de Souza Santos","doi":"10.14808/sci.plena.2024.018001","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.018001","url":null,"abstract":"Free-living species can be used as indicators to estimate the impact of environmental stressors. In this study, the heliophilous lizard Ameiva ameiva was used for the first time for the micronucleus test and other nuclear abnormalities. This biomarker is rapid and reliable in evaluating populations environmentally exposed to genotoxic agents. Thus, two animal populations were collected in the Cerrado Central riparian forests with pasture influence. The results indicated the presence of micronuclei and different nuclear erythrocyte abnormalities: cells with nuclear bud, segmented nucleus, notched nucleus, lobed nucleus, and reniform nucleus. There was no statistical difference in the frequency of DNA damage between the populations in the pasture areas. The inclusion of these species in biomonitoring programs seems relevant to shed light on the susceptibility to expression of genotoxic damage. This species has a wide geographic distribution in the Neotropical region, which makes it promising for research on environmental mutagenesis.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140443185","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

Variabilidade química do óleo essencial de Piper obliquum Ruiz & Pavan. coletada na Estação Ecológica de Cuniã, Porto Velho-Rondônia 在大韦洛-朗多尼亚波尔图库尼昂生态站采集的 Piper obliquum Ruiz & Pavan.

Scientia Plena Pub Date : 2024-02-21 DOI: 10.14808/sci.plena.2024.017201

Jussara Rojas e Silva Aizzo, Ângelo Gilberto Manzatto, Adeilza Felipe Sampaio, Mariangela Soares Azevedo

{"title":"Variabilidade química do óleo essencial de Piper obliquum Ruiz & Pavan. coletada na Estação Ecológica de Cuniã, Porto Velho-Rondônia","authors":"Jussara Rojas e Silva Aizzo, Ângelo Gilberto Manzatto, Adeilza Felipe Sampaio, Mariangela Soares Azevedo","doi":"10.14808/sci.plena.2024.017201","DOIUrl":"https://doi.org/10.14808/sci.plena.2024.017201","url":null,"abstract":"A sazonalidade é um dos fatores que influenciam no metabolismo secundário das plantas, afetando a composição dos óleos essenciais. A família Piperaceae tem importância ecológica e econômica, sendo a Piper obliquum Ruiz & Pav. representante dessa família. Esta espécie é denominada pelos índios Yanomani de Papiu como xama-hanaki. A planta foi coletada na Estação Ecológica de Cuniã, Porto Velho, Rondônia, em cinco períodos do ano, abrangendo os meses de outubro, novembro de 2011 e fevereiro, maio e agosto de 2012. A extração do óleo essencial foi realizada por meio da hidrodestilação e análise do material foi através de cromatografia a gás associada à espectrometria de massas. Os componentes determinados nas foram majoritariamente da classe dos terpenos, onde o maior teor foi de α-pineno, canfeno e β-pineno. A análise de agrupamento hierárquico resultou na formação de grupos distintos para as amostras nos meses de outubro, novembro e agosto para os períodos de fevereiro e maio. Através da Análise de Correspondência Múltipla (ACM) e Análise de Componentes Principais (ACP) verificou-se que alguns constituintes não apresentaram variações significativas, porém muitas substâncias demonstraram correlação positiva concernente ao período coletado. A maioria dos compostos apresentou baixa composição independente do período coletado. A variação química observada dos espécimes obtidos nos diferentes meses corrobora com a influência do ambiente na variação dos componentes do metabolismo secundário dos vegetais.","PeriodicalId":506304,"journal":{"name":"Scientia Plena","volume":"2 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140442719","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