Journal of Bioenergy and Food Science最新文献_第9页

Fungos associados ao processo de decomposição foliar: 2 anos de estudo 与叶片分解过程相关的真菌:2年的研究

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.58

Anelise Kappes Marques, Jessica Barros Aguiar Silva, Amaraína Maia Armiato, Laciene Marinho Santos, P. B. Morais

{"title":"Fungos associados ao processo de decomposição foliar: 2 anos de estudo","authors":"Anelise Kappes Marques, Jessica Barros Aguiar Silva, Amaraína Maia Armiato, Laciene Marinho Santos, P. B. Morais","doi":"10.18067/JBFS.V2I4.58","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.58","url":null,"abstract":"The organic matter decomposition process in first order streams is realized mostly by fungi and it is important to provide energy to various trophic levels in this ecosystem. The present work assesses the temporal variation of molds and yeasts, which are collaborators in the leaf decomposition process, in first order stream of Cerrado vegetation in Tocantins State. Plant litter was collected from vertical input of riparian vegetation and inserted in litterbags. Subsequently, they were submerged for 30 days in the Buritizal stream. The isolation and counting of filamentous fungi and yeasts was done from the maceration of leaf discs in peptone solution and streaking in petri disks containing BDA and YMA media for 30 days. The yeasts counting vary from 1,42 logUFC.gMOF in June, 2011 to 5,90 logUFC.gMOF in April, 2012. The filamentous fungi vary from 1,98 logUFC.gMOF in June, 2011 to 6,27 logUFC.gMOF in March, 2013. The highest quantities of fungi and yeasts were observed in rainy periods and they can be due to floods when the drain of the litter or the soil margin happened. As a result, there is a major entrance of terrestrial and saprobic fungi associated in the horizontal input.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131614403","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

Production of extracellular enzymes by fungi associated to the decomposition of plant materials in streams / Produção de enzimas extracelulares por fungos associados à decomposição materiais vegetais em riachos 与溪流中植物物质分解相关的真菌产生的细胞外酶/与溪流中植物物质分解相关的真菌产生的细胞外酶

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.75

Jessica Barros Aguiar Silva, Suélen Caroline Frantz, Anelise Kappes Marques, C. M. Coelho, P. B. Morais

{"title":"Production of extracellular enzymes by fungi associated to the decomposition of plant materials in streams / Produção de enzimas extracelulares por fungos associados à decomposição materiais vegetais em riachos","authors":"Jessica Barros Aguiar Silva, Suélen Caroline Frantz, Anelise Kappes Marques, C. M. Coelho, P. B. Morais","doi":"10.18067/JBFS.V2I4.75","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.75","url":null,"abstract":"Fungal cellulases and xylanases derived from the huge degradative capabilities of these microorganisms and excreted to medium, raise a biotechnologixcal interest due to large application potential. The objective of this paper is to identify the production of the enzymes cellulase and xylanase by filamentous fungi isolated from allochthonous leaf litter in a stream in Cerrado ecosystem. The tests were carried out using 100 strains grown in synthetic culture medium containing carboxymethyl cellulose or beechwood xylan as sole carbon source for cellulase and xylanase production detection respectively. Inocula were performed in the center of plates and stored for 4 days at 28 ° C and subjected afterwards to thermal shock at 50 ° C for 16 hours. Plates were stained with Congo red solution and washed with a NaCl solution for betterdetection of the hydrolysis halo. Sixty nine percent of the fungal strains tested were positive for cellulase of which 23% were considered with potential for application in biotechnology. None of the fungal strains was able to degrade xylan","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126832265","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

Detecção de compostos voláteis com atividade antibacteriana por fungos endofíticos associados à Costus spiralis 螺旋藻内生真菌挥发性化合物抗菌活性的检测

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.60

Deyze Alencar Soares, Poliana Guerino Marson Ascêncio, Geovanka Marcelle Aguiar Leão, Katarina Mirna Marinho Tenório Rodrigues, R. S. Pimenta

{"title":"Detecção de compostos voláteis com atividade antibacteriana por fungos endofíticos associados à Costus spiralis","authors":"Deyze Alencar Soares, Poliana Guerino Marson Ascêncio, Geovanka Marcelle Aguiar Leão, Katarina Mirna Marinho Tenório Rodrigues, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.60","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.60","url":null,"abstract":"- Endophytic fungi that live inside plants, for instance, in organs and plant tissues such as leaves and branches, without causing any harm. Assumptions of interactions between endophytic fungi and host plants suggest that therapeutic properties may be in the fungi and not on the plant or, probably, in the interaction amid them. Due to this, the interest in endophytic fungi from medicinal plants has increased. The gram-positive Streptococcus pneumoniae and gram-negative Klebsiella pneumoniae are important pathogenic bacteria, acting as infectious agents and causing respiratory diseases and hospital infections. This study aimed to obtain volatile compounds from endophytic fungi, which were isolated from medicinal plant Costus spiralis (jacq) Roscoe (Costaceae) and perform an antibacterial evaluation of them against S. pneumoniae and K. pneumoniae. The test to verify volatile substances was realized using Petri dishes without agar in the central portion, in order to prevent the diffusion effect. The endophytic fungus and the pathogen were inoculated on opposite sides of the plate that were sealed with parafilm. Negative controls were performed with each pathogen inoculation in culture media without antagonist, however, there was no growth inhibition of pathogens for those which were incubated in the presence of endophytic test, when comparing to control test. Thus, the discovery of new antibiotics becomes important due to the emergence of resistant pathogens, as well as the development of new diseases and the toxicity of drugs that already exist","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125651556","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

Seasonal studies of limnological aspects of a wetland forest fragment in the Araguaia Plains, Tocantins, Brazil / Estudos sazonais de aspectos limnólogicos de um fragmento florestal inundado na Planície do Araguaia, Tocantins, Brasil 巴西托坎廷斯阿拉瓜亚平原湿地森林碎片湖沼学方面的季节研究/巴西托坎廷斯阿拉瓜亚平原洪水森林碎片湖沼学方面的季节研究

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.76

Hiulha de Jesus Silva, M. Barbosa, P. B. Morais

{"title":"Seasonal studies of limnological aspects of a wetland forest fragment in the Araguaia Plains, Tocantins, Brazil / Estudos sazonais de aspectos limnólogicos de um fragmento florestal inundado na Planície do Araguaia, Tocantins, Brasil","authors":"Hiulha de Jesus Silva, M. Barbosa, P. B. Morais","doi":"10.18067/JBFS.V2I4.76","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.76","url":null,"abstract":"Ipucas are ecosystems of natural forest fragments, occurring particularly in the Araguaia plain. It has great influence of flood pulses that occur during the rainy season because they remain flooded during this period and as terrestrial environments in the dry season. The study aimed to evaluate the temporal variation of limnological factors in a Ipuca in the district of the Lagoa da Confusao, Tocantins, through monthly collections between December/2014 and August/2015. The variables measured were: transparency by Secchi disk, turbidity (NTU), dissolved oxygen (mg/L), temperature (°C), hydrogen potential - pH, total dissolved solids (ppm), electrical conductivity (µS/cm) ammonia - NH3 (mg/L) nitrite - NO2 (mg/L) nitrate - NO3 (mg/L), orthophosphate - P (mg/L) ?-chlorophyll (mg/L) and depth of the water blade (cm). The total water transparency and low turbidity values demonstrate the importance of the precipitation of these parameters, as well as the structure of the forest Ipuca supports the values found. The water temperature of Ipucas was influenced by the seasons. The dissolved oxygen was directly related to chlorophyll-?. The concentration of nutrients analyzed showed big swings, probably due to the rapid incorporation of the aquatic communities. However, a homogenization of physical and chemical parameters during the sampling time was observed.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121043574","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

Microbiological conditions and occurrence of the African land snail in Araguaína city at Tocantins State, Brazil / Condições microbiológicas e de ocorrência do caramujo terrestre africano na cidade de Araguaína no Estado do Tocantins 巴西托坎廷斯州araguaina市非洲陆蜗牛的微生物条件和发生/托坎廷斯州araguaina市非洲陆蜗牛的微生物条件和发生

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.62

Lilyan Rosmery Luizaga de Monteiro, Fernanda Lima da Silva, Leurilene Barbosa Silva

{"title":"Microbiological conditions and occurrence of the African land snail in Araguaína city at Tocantins State, Brazil / Condições microbiológicas e de ocorrência do caramujo terrestre africano na cidade de Araguaína no Estado do Tocantins","authors":"Lilyan Rosmery Luizaga de Monteiro, Fernanda Lima da Silva, Leurilene Barbosa Silva","doi":"10.18067/JBFS.V2I4.62","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.62","url":null,"abstract":"Based on the high incidence of invasive species of the African snail, Achatina fulica, in Araguaina city, we aimed to investigate the relationship between the microbiological conditions of the snail and the occurrence of this in home gardens in the city. Laboratory methods were followed to determine the presence / absence of microorganisms at the snail´s surface, as well as filamentous fungi. In addition there were performed hundred and one (101) interviews to locals settled in nineteen sectors of Araguaina. The microbiological results from the snail surface analysis showed at least 1,2x105 CFU/g of heterotrophic bacteria, also were isolated fungi as Aspergillus, Penicillium, Trichophytone and Cryptococcus. In the survey interview, 86% of respondents reported a high incidence of snail in their homes during the rainy season and 50% of them informed they had some kind of home garden, on the other hand 85% are unawared of the diseases that could be transmitted by this snail. We conclude that there are high levels of microbial contamination on the snail surface, combined with the preference for domestic garden´s products, been unawared of risks that can be carried by the snail invasion, which indicate the need to improve the knowledge regarding the risks of A. fulica in the daily lives of the residents of Araguaina city, considering not only people´s health but also the productivity of small-scale agriculture.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125844808","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

Evaluation of antimicrobial activity from extracellular pigments produced by endophytic / Avaliação da atividade antimicrobiana de pigmentos extracelulares produzidos por fungos endofíticos 内生真菌产生的细胞外色素的抗菌活性评价/内生真菌产生的细胞外色素的抗菌活性评价

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.59

Deyze Alencar Soares, R. S. Pimenta

{"title":"Evaluation of antimicrobial activity from extracellular pigments produced by endophytic / Avaliação da atividade antimicrobiana de pigmentos extracelulares produzidos por fungos endofíticos","authors":"Deyze Alencar Soares, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.59","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.59","url":null,"abstract":"Fungi pigments have a great biotechnological potential and some properties such as antimicrobial and antioxidant activity. Fungal endophytes are closely associated with plants and are an alternative source of natural dyes, which can be used in medicine. This study aimed to investigate the antimicrobial activity of pigments produced by endophytic fungi against pathogens. They belonged to the Microorganisms Collection of the General and Applied Microbiology Laboratory at the Federal University of Tocantins. Firstly, sixty isolated samples were selected accordingly to pigment production, then they were placed in an Erlenmeyer containing 100 ml of potato broth and incubated at 30°C for 14 days. After this period, the extracellular pigments were extracted with 95% ethanol and subsequently they were filtered. Diffusion disks were used in the in vitro antagonism test, which were inoculated with 10 uL of pigment filtrates and incubated at 37 ° C for 24 hours against human pathogens, for instance, Escherichia coli, Staphylococcus aureus and Candida albicans. The antimicrobial activity was evaluated based on the formation of an inhibition zone. The filtrates have not showed antimicrobial potential based on the pathogens tests. Therefore, the endophytic fungi study aiming to identify antimicrobial substances is fundamentally important against bacteria and pathogenic fungi.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133694935","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

Diversity of environmental and patients bacteria in the Hospital Geral de Palmas-TO / Diversidade de bactérias ambientais e de pacientes no Hospital Geral de Palmas-TO. 帕尔马斯-托总医院环境和病人细菌的多样性/帕尔马斯-托总医院环境和病人细菌的多样性。

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.63

A. Baptista, J. M. Ramos, Rodoldo Rezende das Neves, Douglas F. Souza, R. S. Pimenta

{"title":"Diversity of environmental and patients bacteria in the Hospital Geral de Palmas-TO / Diversidade de bactérias ambientais e de pacientes no Hospital Geral de Palmas-TO.","authors":"A. Baptista, J. M. Ramos, Rodoldo Rezende das Neves, Douglas F. Souza, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.63","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.63","url":null,"abstract":"Resistant pathogens are an important challenge to hospitals, especially to stablish the correct treatment and prophylactic measures. Once in the environmental Gram-negative strains can acquire resistance genes from the soil, water and hospital effluent and so transmit it to other genus. The objective of this study was to quantify and to qualify the bacterial strains present in patients with suspected of nosocomial infection and the environment in which they are admitted in the Palmas General Hospital. 14 different bacterial species from 141 samples, being 123 from patients and 18 from hospital environment. In patient samples highlights were Klebsiella pneumoniae (21.9%), Acinetobacter baumannii (13.82%), Pseudomonas aeruginosa (12.2%), Escherichia coli (11.4%), Serratia marcescens (10.6 %) and Staphylococcus aureus (9.0%), From this total, 80 strains were multiresistant to antibiotics, whichever Klebsiella pneumoniae (26.3%) and A. baumannii (20.0%). The tracheal aspirate samples showed a greater number of multidrug-resistant strains. The environment prevailed Serratia marcescens, Staphylococcus aureus and Staphylococcus sp. both with 22.2%, collected from different locations and ICU materials such as tracheal tube, Ambu, mattress and monitors. Administrative and educational strategies are necessary to reduce the spread of multi-resistant germs.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131077059","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: 10

Evaluation of antagonistic activity in vitro of endophytic fungi associated with camu-camu (Myrciaria dubia) / Avaliação da atividade antagonista in vitro de fungos endofíticos associados ao camu-camu (Myrciaria dubia) 与camu-camu (Myrciaria dubia)相关的内生真菌的体外拮抗活性评价/与camu-camu (Myrciaria dubia)相关的内生真菌的体外拮抗活性评价

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.74

V. C. Correia, Rita de Kássia de Oliveira Pereira, Nathália Oliveira Lima, Maildo Barbosa Coelho, Waldesse Piragé de Oliveira Junior, R. S. Pimenta

{"title":"Evaluation of antagonistic activity in vitro of endophytic fungi associated with camu-camu (Myrciaria dubia) / Avaliação da atividade antagonista in vitro de fungos endofíticos associados ao camu-camu (Myrciaria dubia)","authors":"V. C. Correia, Rita de Kássia de Oliveira Pereira, Nathália Oliveira Lima, Maildo Barbosa Coelho, Waldesse Piragé de Oliveira Junior, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.74","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.74","url":null,"abstract":"Endophytic fungi are those that inhabit the inner tissue of their hosts, playing varied and narrow ecological relations without showing visible symptoms. It is estimated that the majority of plant species have not yet been sorted endophytic microorganisms and little-known properties, but some potentially suitable for biotechnological applications. Camu-camu (Myrciaria dubia) has great economic potential, the nutritional characteristics of the fruit, such as high production of vitamin C. Were isolated and cultured 307 endophytic fungi associated with the leaves and stems of M. dubia in order to verify the antagonistic activity, for the production of diffusible and volatile substances against the following pathogens: M. fructicola, Colletotrichum gloeosporioides and Aspergillus parasiticus. It was found that 22 isolates inhibited the growth of at least one target plant pathogens, showing inhibition potential (IP) from 25.62% to 93.84%, five endophytic stood with inhibition percentage above 50%, by producing diffusible and volatile substances. The competitive interactions were analyzed according to Badalyan scale, and there was a higher frequency among the fungi, the interaction type A (\"deadlock\" with mycelial contact). It is concluded that endophytic fungi isolated from leaves and stems of M. dubia, have promising biotechnological potential in biocontrol of plant pathogens (A.parasiticus, M. fructicola and C. gloeosporioides).","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129827253","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

Occurrence and biotechnological potential of yeasts associated with almond fruits of Attalea Speciosa mart ex Spreng / Ocorrência e potencial biotecnológico de leveduras associadas aos frutos de Attalea speciosa. 与杏仁果实相关的酵母的发生和生物技术潜力/与杏仁果实相关的酵母的发生和生物技术潜力。

Journal of Bioenergy and Food Science Pub Date : 2015-12-22 DOI: 10.18067/JBFS.V2I4.77

Stella Costa Santos do Vale, A. P. Guimarães, P. B. Morais

{"title":"Occurrence and biotechnological potential of yeasts associated with almond fruits of Attalea Speciosa mart ex Spreng / Ocorrência e potencial biotecnológico de leveduras associadas aos frutos de Attalea speciosa.","authors":"Stella Costa Santos do Vale, A. P. Guimarães, P. B. Morais","doi":"10.18067/JBFS.V2I4.77","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.77","url":null,"abstract":"Attalea speciosa Mart ex Spreng is a oil palm belonging to the family Arecaceae with fruits 15% of the total weight of the fruit correspond to the epicarp; 20% to 58% to the mesocarp and endocarp (including almonds), the almonds being its most used component. Fruits are important natural microhabitats for a significant diversity of yeast species. The objective of this study was to isolate and test the enzymatic abilities of yeast strains associated with almond fruits of Attalea speciosa, and their possible biotechnological potential for industrial purposes. Ten collections of 15 almonds for sample were conducted at seven days intervals at an extractivism reserve of Mata de Babacuais ecosystem. Among 84 yeasts isolated, The enzymatic activity was evaluated and among the eighty-four strains of yeast tested as the ability to hydrolyze casein among protease, 26.04% had enzymatic potential acidic pH, 31.92% at neutral pH and 28.56% in alkaline pH, demonstrating enzyme potential in different pHs.A lipase activity was also satisfactory where, sixty-two lipase producing strains may have potential use for commercial employment testing microbial lipases. Already cellulolytic activity was more limited, only nineteen lineages showed degrading cellulose.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132448312","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

Adubação nitrogenada e potássica na produtividade do capim Mombaça sobre adubação fosfatada 施氮、施钾对蒙巴萨草磷肥生产力的影响

Journal of Bioenergy and Food Science Pub Date : 2015-10-01 DOI: 10.18067/JBFS.V2I3.24

Alvaro José Gomes de Faria, Gilson Araújo de Freitas, Anderson Claiton Pereira Georgetti, Jose Moises Ferreira Júnior, M. Silva, Rubens Ribeiro da Silva

{"title":"Adubação nitrogenada e potássica na produtividade do capim Mombaça sobre adubação fosfatada","authors":"Alvaro José Gomes de Faria, Gilson Araújo de Freitas, Anderson Claiton Pereira Georgetti, Jose Moises Ferreira Júnior, M. Silva, Rubens Ribeiro da Silva","doi":"10.18067/JBFS.V2I3.24","DOIUrl":"https://doi.org/10.18067/JBFS.V2I3.24","url":null,"abstract":"O atendimento das exigencias nutricionais das plantas forrageiras e um dos fatores que interfere na producao e na qualidade das plantas. Diante disso, objetivou-se avaliar os efeitos da adubacao nitrogenada e potassica em cobertura sobre as caracteristicas morfologicas e produtivas da graminea Panicum maximum cv. Mombaca cultivados sobre adubacao fosfatada natural. O delineamento experimental adotado foi em blocos casualizados com quatro repeticoes. Obtendo assim um esquema fatorial com dois fatores (6 x 2). O primeiro fator foi composto por seis doses de adubacao fosfatada (0, 35, 70, 140, 210, 280 kg ha -1 de P 2 O 5 )e o segundo fator esta relacionado com a adubacao de cobertura com nitrogenio e potassio. Quanto a adubacao de cobertura, as parcelas que constituia uma area de 20 m² foram divididas ao meio, sendo aplicados 100 kg ha -1 de Ureia e 60 kg ha -1 de Cloreto de Potassio. A ureia foi dividida em duas aplicacoes mensalmente de 50 kg ha -1 . A adubacao de cobertura com nitrogenio e potassio, em funcao do aumento da dose da fonte de fosfato natural residual proporcionou resposta quadratica na maioria dos indicadores analisados. Observou-se que a maior altura, nos tratamentos com adubacao de cobertura, foi de 100,6 cm de altura na dose 201,06 kg de P 2 O 5 em comparacao com 74,9 cm de altura na dose de 165,7 kg de P 2 O 5 sem adubacao de cobertura . Assim, tanto a adubacao fosfatada quanto a adubacao de cobertura contribuiram para o desenvolvimento das plantas, podendo ser uma ferramenta importante para elevar os indices produtivos da forrageira.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122837605","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: 7