C. E. Silva, Edna Marinho de Oliveira Moura, F. P. D. Andrade, G. N. S. B. Gois, I. C. C. Silva, Lívia Manuela Oliveira da Silva, José Edmundo Accioly Souza, A. K. S. Abud
Due to the significant increase in consumption of fruits and their derivatives, it is necessary to invest in operations aimed at their use, minimizing the pre and post-harvest losses, due to its high perishability. The fruit processing pulp is a widely used technique because much of the population seeking convenience and a healthier diet, in addition to increase the product shelf life and can provide it to distant regions and periods off season. This study evaluated physicochemical and microbiological characteristics, in three consecutive months, 17 flavors of fruit pulp of a manufacturing company in order to use the final product control as a means to identify control gaps present in the acquisition of raw materials as well as during processing steps and packaging. It was noticed that about 60% of all pulps were unfit for human consumption, with the highest percentage in the physicochemical analysis (45%), followed by microbiological (30%). In the microbiological characteristics, the large amount of molds and yeasts suggest failure through cleaning and sanitizing fruits and in the processing area. For the physicochemical analysis, pH and total soluble solids content were the most alarming, verifying the possibility of water adittion (illegal) and acidulant excess, which causes the pulp loses its fruit identity. The most problematic fruits were pineapple, prune, caja, cashew, graviola, guava and passion fruit. The control of the final product proved essential to the company's quality assurance.
{"title":"The importance of monitoring the identity and quality standards in fruit pulp industry / Importância da monitoração dos padrões de identidade e qualidade na indústria de polpa de fruta","authors":"C. E. Silva, Edna Marinho de Oliveira Moura, F. P. D. Andrade, G. N. S. B. Gois, I. C. C. Silva, Lívia Manuela Oliveira da Silva, José Edmundo Accioly Souza, A. K. S. Abud","doi":"10.18067/JBFS.V3I1.33","DOIUrl":"https://doi.org/10.18067/JBFS.V3I1.33","url":null,"abstract":"Due to the significant increase in consumption of fruits and their derivatives, it is necessary to invest in operations aimed at their use, minimizing the pre and post-harvest losses, due to its high perishability. The fruit processing pulp is a widely used technique because much of the population seeking convenience and a healthier diet, in addition to increase the product shelf life and can provide it to distant regions and periods off season. This study evaluated physicochemical and microbiological characteristics, in three consecutive months, 17 flavors of fruit pulp of a manufacturing company in order to use the final product control as a means to identify control gaps present in the acquisition of raw materials as well as during processing steps and packaging. It was noticed that about 60% of all pulps were unfit for human consumption, with the highest percentage in the physicochemical analysis (45%), followed by microbiological (30%). In the microbiological characteristics, the large amount of molds and yeasts suggest failure through cleaning and sanitizing fruits and in the processing area. For the physicochemical analysis, pH and total soluble solids content were the most alarming, verifying the possibility of water adittion (illegal) and acidulant excess, which causes the pulp loses its fruit identity. The most problematic fruits were pineapple, prune, caja, cashew, graviola, guava and passion fruit. The control of the final product proved essential to the company's quality assurance.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128271037","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}
A. Nakashima, Raquel Costa Chevalier, William Renzo Cortez-Vega
This objective of this study was to develop and characterized films based on collagen and analyze the effects of concentrations of clay, plasticizer and essential oil on its characteristics. The solutions were prepared according to an experimental design of 2³ with 3 central points. The films were produced by the "casting" technique, which consists on surface drying, and were characterized by the color, opacity, tensile strength, solubility, water vapor permeability and thickness. Lightness values ranged between 66.76 and 96.03, the brightness decreased with increasing the concentrations of clay, oil and glycerol. The opacity values showed an increase with the addition of glycerol, ranging from 1.96 to 44.24%. The values of tensile strength ranged from 5 to 14 MPa, and the solubility values, from 2.14 to 7.97%. In the 5% level, solubility and tensile strength analyzes were not significant. The water vapor permeability (WVP) ranged from 0.77 to 2.51 (g.mm/KPa.m 2 .d). The most influent factors on the permeability to water vapor in the films are the glycerol and essential oil concentrations, which increases the permeability as these variables increase. In relation to the thickness, the concentration of montmorillonite clay interfered in the range from 0.02 to 0.04mm, and as higher its concentration, greater the thickness. It was concluded that the collagen films obtained good mechanical properties, adequate visual appearance, easy handing and low permeability to water vapor and low water solubility. The essential oil was effective in the structure of the film, since that it improves the look and easier handling.
{"title":"Development and characterization of collagen films with added essential oil of clove india / Desenvolvimento e caracterização de filmes de colágeno com adição de óleo essencial de cravo-da-índia","authors":"A. Nakashima, Raquel Costa Chevalier, William Renzo Cortez-Vega","doi":"10.18067/JBFS.V3I1.86","DOIUrl":"https://doi.org/10.18067/JBFS.V3I1.86","url":null,"abstract":"This objective of this study was to develop and characterized films based on collagen and analyze the effects of concentrations of clay, plasticizer and essential oil on its characteristics. The solutions were prepared according to an experimental design of 2³ with 3 central points. The films were produced by the \"casting\" technique, which consists on surface drying, and were characterized by the color, opacity, tensile strength, solubility, water vapor permeability and thickness. Lightness values ranged between 66.76 and 96.03, the brightness decreased with increasing the concentrations of clay, oil and glycerol. The opacity values showed an increase with the addition of glycerol, ranging from 1.96 to 44.24%. The values of tensile strength ranged from 5 to 14 MPa, and the solubility values, from 2.14 to 7.97%. In the 5% level, solubility and tensile strength analyzes were not significant. The water vapor permeability (WVP) ranged from 0.77 to 2.51 (g.mm/KPa.m 2 .d). The most influent factors on the permeability to water vapor in the films are the glycerol and essential oil concentrations, which increases the permeability as these variables increase. In relation to the thickness, the concentration of montmorillonite clay interfered in the range from 0.02 to 0.04mm, and as higher its concentration, greater the thickness. It was concluded that the collagen films obtained good mechanical properties, adequate visual appearance, easy handing and low permeability to water vapor and low water solubility. The essential oil was effective in the structure of the film, since that it improves the look and easier handling.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129552293","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}
Eskálath Morganna Silva Ferreira, C. Malta, Leisciany Vieira Gonzaga, Jordana Oliveira Bicalho, R. S. Pimenta
Biological control has been integrated into substances known as "GRAS" (Generally Regarded As Safe), these substances are commonly used as food additives, and its main role is to assist the biological agents antagonistic action. This study aimed to test the effects of five "GRAS substances " over the growth of four strains of yeast (5822, 5852, 5859, 5872) selected by presenting characteristics of good biocontrol agents. To perform the test, the strains were grown in GYMP broth with the addition of substances sodium bicarbonate, sodium carbonate, calcium carbonate, calcium chloride and potassium chloride at concentrations of 1%, 3% and 5% with the exception of chloride whose potassium concentrations were 0.1%, 0.5% and 1% (maximum concentration permitted by law). On days 1, 4, 7, and 10 after incubation an aliquot of 50 µl was removed and plated cultures, and the results expressed as CFU / ml. Among the four tested strains, only 5852 was able to survive seven days in the presence of sodium bicarbonate at the three concentrations tested. Demonstrating the ability of this yeast to be used in integrated biological control protocols with this substance.
{"title":"Resistance evaluation biological controller yeast to substances \"GRAS\" - (Generally Regarded As Safe) / Avaliação da resistência de leveduras biocontroladoras à substâncias “GRAS” - (Generally Regarded As Safe)","authors":"Eskálath Morganna Silva Ferreira, C. Malta, Leisciany Vieira Gonzaga, Jordana Oliveira Bicalho, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.66","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.66","url":null,"abstract":"Biological control has been integrated into substances known as \"GRAS\" (Generally Regarded As Safe), these substances are commonly used as food additives, and its main role is to assist the biological agents antagonistic action. This study aimed to test the effects of five \"GRAS substances \" over the growth of four strains of yeast (5822, 5852, 5859, 5872) selected by presenting characteristics of good biocontrol agents. To perform the test, the strains were grown in GYMP broth with the addition of substances sodium bicarbonate, sodium carbonate, calcium carbonate, calcium chloride and potassium chloride at concentrations of 1%, 3% and 5% with the exception of chloride whose potassium concentrations were 0.1%, 0.5% and 1% (maximum concentration permitted by law). On days 1, 4, 7, and 10 after incubation an aliquot of 50 µl was removed and plated cultures, and the results expressed as CFU / ml. Among the four tested strains, only 5852 was able to survive seven days in the presence of sodium bicarbonate at the three concentrations tested. Demonstrating the ability of this yeast to be used in integrated biological control protocols with this substance.","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":"133475065","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}
Eskálath Morganna Silva Ferreira, C. Malta, C. M. Coelho, R. S. Pimenta
Colletotrichum gloeosporioides and Fusarium guttiforme are phytopathogenic fungi causing various post-harvest diseases in fruits. Substances "GRAS" - (Generally Regarded Ase Safe), they are an alternative for the control of microorganisms in the post-harvest phase, due to their fungistatic and fungicide effects. The objective of this study was to evaluate the inhibitory effects of five "GRAS" substances over the growth of pathogenic fungi C. gloeosporioides and F. guttiforme in vitro. Culture media (PDA) were supplemented with 1%, 3% and 5% sodium bicarbonate, sodium carbonate, calcium carbonate, calcium chloride and 0.1% 0.5% 1% potassium chloride. 10?l spore solution was inoculated at a concentration of 5x103ml/spore. From the five substances used in the tests, sodium bicarbonate and sodium carbonate inhibited 100% of C. gloeosporioides growth, the others were not limiting to the development of the fungus when compared to control. Sodium carbonate inhibited 100% of F. guttiforme growth at all concentrations. Were also positive, sodium bicarbonate in concentrations of 3% and 5%. The treatment with 5% calcium chloride at 51% reduced the growth this phytopatogen. Other substances not reduced or inhibited the mycelial growth of the pathogen when compared to the control. From the five substances "GRAS" tested in this work, sodium carbonate and sodium bicarbonate, were effective in inhibiting the mycelial growth of C. gloeosporioides. Sodium carbonate, sodium bicarbonate and calcium chloride were able in to reduce the growth of F. guttiforme
{"title":"GRAS substances in control of Colletotrichum gloeosporioides growth and Fusarium guttiforme vitro / Substâncias GRAS no controle do crescimento de Colletotrichum gloeosporioides e Fusarium guttiforme in vitro.","authors":"Eskálath Morganna Silva Ferreira, C. Malta, C. M. Coelho, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.67","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.67","url":null,"abstract":"Colletotrichum gloeosporioides and Fusarium guttiforme are phytopathogenic fungi causing various post-harvest diseases in fruits. Substances \"GRAS\" - (Generally Regarded Ase Safe), they are an alternative for the control of microorganisms in the post-harvest phase, due to their fungistatic and fungicide effects. The objective of this study was to evaluate the inhibitory effects of five \"GRAS\" substances over the growth of pathogenic fungi C. gloeosporioides and F. guttiforme in vitro. Culture media (PDA) were supplemented with 1%, 3% and 5% sodium bicarbonate, sodium carbonate, calcium carbonate, calcium chloride and 0.1% 0.5% 1% potassium chloride. 10?l spore solution was inoculated at a concentration of 5x103ml/spore. From the five substances used in the tests, sodium bicarbonate and sodium carbonate inhibited 100% of C. gloeosporioides growth, the others were not limiting to the development of the fungus when compared to control. Sodium carbonate inhibited 100% of F. guttiforme growth at all concentrations. Were also positive, sodium bicarbonate in concentrations of 3% and 5%. The treatment with 5% calcium chloride at 51% reduced the growth this phytopatogen. Other substances not reduced or inhibited the mycelial growth of the pathogen when compared to the control. From the five substances \"GRAS\" tested in this work, sodium carbonate and sodium bicarbonate, were effective in inhibiting the mycelial growth of C. gloeosporioides. Sodium carbonate, sodium bicarbonate and calcium chloride were able in to reduce the growth of F. guttiforme","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":"133766807","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}
Claudia Scareli-Santos, A. Sampaio, P. Silva, D. Barbosa, Silionamã Pereira Dantas
The galls are characterized by an abnormal growth of tissues in response to galling specific stimuli. In this paper we described six gall morphotypes in Caryocar brasiliense (Caryocaraceae) present in individuals located on the campuses of Araguaina and Palmas, Federal University of Tocantins. All materials were analyzed using stereoscopic microscope and specific bibliography. In Araguaina, it was observed on the adaxial side of the leaflets, green-colored spherical morphotypes with purple apex and green-colored polypoid with brown patches and red apex. Green-colored globoid type galls with brown patches were observed on both surfaces. On the petiole, beige globoid galls were described. The aforementioned morphotypes are closed, hairless, had grouped occurrence and a single larval chamber with only one larvae per locule, except for the globoid leaf gall that presented cream trichomes and the globoid morphotype, located in the branches and in the petiole, which had two chambers. Aside from the polypoid gall, all the others showed full adherence. On the campus of Palmas it was recorded the fusiform morphotypes occurring in the primary and secondary veins, from the abaxial surface, varying its color from cream to red; and the pink-colored discoid located on the tertiary veins, on both surfaces; both showed full adherence, grouped occurrence and white trichomes; internally they display a larval chamber and only one larvae per locule. The morphological diversity of galls on C. brasiliense individuals demonstrates the potential of the species as a super-host in the Cerrado biome.
{"title":"Morphogical description of leave gall in the Caryocar brasiliense Camb. (Caryocaraceae): a super-host specie / Descrição morfológica das galhas foliares de Caryocar brasiliense Camb. (Caryocaraceae): uma espécie super hospedeira","authors":"Claudia Scareli-Santos, A. Sampaio, P. Silva, D. Barbosa, Silionamã Pereira Dantas","doi":"10.18067/JBFS.V2I4.71","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.71","url":null,"abstract":"The galls are characterized by an abnormal growth of tissues in response to galling specific stimuli. In this paper we described six gall morphotypes in Caryocar brasiliense (Caryocaraceae) present in individuals located on the campuses of Araguaina and Palmas, Federal University of Tocantins. All materials were analyzed using stereoscopic microscope and specific bibliography. In Araguaina, it was observed on the adaxial side of the leaflets, green-colored spherical morphotypes with purple apex and green-colored polypoid with brown patches and red apex. Green-colored globoid type galls with brown patches were observed on both surfaces. On the petiole, beige globoid galls were described. The aforementioned morphotypes are closed, hairless, had grouped occurrence and a single larval chamber with only one larvae per locule, except for the globoid leaf gall that presented cream trichomes and the globoid morphotype, located in the branches and in the petiole, which had two chambers. Aside from the polypoid gall, all the others showed full adherence. On the campus of Palmas it was recorded the fusiform morphotypes occurring in the primary and secondary veins, from the abaxial surface, varying its color from cream to red; and the pink-colored discoid located on the tertiary veins, on both surfaces; both showed full adherence, grouped occurrence and white trichomes; internally they display a larval chamber and only one larvae per locule. The morphological diversity of galls on C. brasiliense individuals demonstrates the potential of the species as a super-host in the Cerrado biome.","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":"123193558","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}
Carla Maria Lima Silva, C. Pires, Juliana Pinto de Lima, Anielli Souza Pereira, Clemilson Antonio da Silva
The cagaita is a fruit of cerrado, of pale yellow color and containing 1-3 white seeds, wrapped in a slightly acidic pulp. It presents a significant content of vitamin C, carotenoids and fibers. This work was carried out to evaluate the osmotic dehydration conditions for obtaining cagaita raisins. The osmotic treatment was conducted at 50 °C and 70 °C, without stirring, using sucrose solutions at 45 °Brix and 65 °Brix. Evaluated the loss of water parameters, weight loss and solids uptake, shrinkage and rehydration capacity. The dehydrated samples were subjected to sensory evaluation by applying an acceptance test. The study showed that there was a greater water loss, weight loss and increased incorporation of soluble solids in the dried samples cagaita under the conditions of 65 °Brix to 70 °C. The lower shrinkage rate and higher rehydration capacity were observed in osmotically dehydrated samples at 45 oBrix solution at 50 °C. Sensory analysis showed that dehydrated cagaita showed good acceptance, constituting an option to add value to the fruit.
{"title":"Osmotic dehydration to obtain cagaita raisins / Desidratação osmótica para obtenção de cagaita passa","authors":"Carla Maria Lima Silva, C. Pires, Juliana Pinto de Lima, Anielli Souza Pereira, Clemilson Antonio da Silva","doi":"10.18067/JBFS.V2I4.82","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.82","url":null,"abstract":"The cagaita is a fruit of cerrado, of pale yellow color and containing 1-3 white seeds, wrapped in a slightly acidic pulp. It presents a significant content of vitamin C, carotenoids and fibers. This work was carried out to evaluate the osmotic dehydration conditions for obtaining cagaita raisins. The osmotic treatment was conducted at 50 °C and 70 °C, without stirring, using sucrose solutions at 45 °Brix and 65 °Brix. Evaluated the loss of water parameters, weight loss and solids uptake, shrinkage and rehydration capacity. The dehydrated samples were subjected to sensory evaluation by applying an acceptance test. The study showed that there was a greater water loss, weight loss and increased incorporation of soluble solids in the dried samples cagaita under the conditions of 65 °Brix to 70 °C. The lower shrinkage rate and higher rehydration capacity were observed in osmotically dehydrated samples at 45 oBrix solution at 50 °C. Sensory analysis showed that dehydrated cagaita showed good acceptance, constituting an option to add value to the fruit.","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":"116787387","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}
Claudia Scareli-Santos, M. D. D. Silva, Francisco Guttemberg dos Santos Oliveira, A. Sampaio
Galls are structures that show specific associations between the inductor and the host plant, which morphological, anatomical and chemical changes of the plant tissues are highlighted. This paper aimed to describe the morphology and distribution of leaf galls in Anacardium occidentale L. (Anacardiaceae). 294 leafs were collected from the branches apical portion of individuals located in the Federal University of Tocantins - Araguaina Campus, TO. Morphological analyzes were performed using stereoscopic microscope, caliper and specific bibliography. It was determined the number of galls on the foliar limb followed by the number of galls per limb and its length linear regression analysis. Conical type galls were observed crossing the leaf blade, green-colored glabrous when young and orange-red when mature, with isolated/grouped distribution and full adherence; internally it presented a lobe and inducer’s larvae (Cecidomyiidae). The distribution of galls in the limb showed significant differences (p <0.001), in descending order there was a higher number of galls between the veins (57.1%) on the secondary vein (35.7%) on the edge (6.3%) and the central vein (1.2%); Linear regression analysis showed weakly positive (r2 = 0.03; Pearson's correlation coefficient = 0.2025), suggesting that oviposition is associated in part with the foliar limb size and that other variables can be decisive. These are the first records of galls in A. occidentale in the State of Tocantins.
{"title":"Morphology and distribution leaf galls of Anacardium occidentale L. (Anacardiaceae) / Morfologia e distribuição de galhas foliares de Anacardium occidentale L. (Anacardiaceae)","authors":"Claudia Scareli-Santos, M. D. D. Silva, Francisco Guttemberg dos Santos Oliveira, A. Sampaio","doi":"10.18067/JBFS.V2I4.64","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.64","url":null,"abstract":"Galls are structures that show specific associations between the inductor and the host plant, which morphological, anatomical and chemical changes of the plant tissues are highlighted. This paper aimed to describe the morphology and distribution of leaf galls in Anacardium occidentale L. (Anacardiaceae). 294 leafs were collected from the branches apical portion of individuals located in the Federal University of Tocantins - Araguaina Campus, TO. Morphological analyzes were performed using stereoscopic microscope, caliper and specific bibliography. It was determined the number of galls on the foliar limb followed by the number of galls per limb and its length linear regression analysis. Conical type galls were observed crossing the leaf blade, green-colored glabrous when young and orange-red when mature, with isolated/grouped distribution and full adherence; internally it presented a lobe and inducer’s larvae (Cecidomyiidae). The distribution of galls in the limb showed significant differences (p <0.001), in descending order there was a higher number of galls between the veins (57.1%) on the secondary vein (35.7%) on the edge (6.3%) and the central vein (1.2%); Linear regression analysis showed weakly positive (r2 = 0.03; Pearson's correlation coefficient = 0.2025), suggesting that oviposition is associated in part with the foliar limb size and that other variables can be decisive. These are the first records of galls in A. occidentale in the State of Tocantins.","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":"128201007","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}
D. J. Barros, Anelise Kappes Marques, P. B. Morais
UHE Lajeado reservoir is located in the central region of Tocantins State and it has favorable conditions to recreational activities. The margins of the reservoir exhibit a high recreational potential, thus, the sanitary conditions must be ensured to allow safe primary contact with waters. Balneability indicators should be assessed in environments with recreational purposes aiming the prediction and also to prevent adverse effects on human health and aquatic biota. The present work assessed the indicator parameter of fecal contamination, Escherichia coli, in order to establish the balneability of four beaches, which are: Caju, Prata, Graciosa and Arnos, in the capital of Tocantins State, Palmas. The detection and counting of Escherichia coli used the chromogenic substrate technique of samples taken at five weeks interval during the period of 2012 and 2015. Escherichia coli counting were low and allowed the classification of the beach waters to be very good to excellent based on legal requirements CONAMA No 274/2000. Hence, this work contributes to build an important database about microbiological conditions of the waters of Lajeado reservoir.
UHE Lajeado水库位于Tocantins州的中部地区，具有良好的娱乐活动条件。水库的边缘显示出很高的娱乐潜力，因此，必须确保卫生条件，以允许安全的初级接触水。应在具有娱乐目的的环境中评估可平衡性指标，目的是预测并防止对人类健康和水生生物群产生不利影响。本研究评估了粪便污染的指标参数——大肠杆菌，以确定Tocantins州首府帕尔马斯的卡朱、普拉塔、格拉西奥萨和阿诺斯四个海滩的可营养性。2012 - 2015年每隔5周取样一次，采用显色底物技术对大肠杆菌进行检测和计数。大肠杆菌计数较低，根据CONAMA No 274/2000的法律要求，海滩水域的分类为非常好至优秀。因此，本研究为建立拉家多水库水体微生物状况的重要数据库做出了贡献。
{"title":"Avaliação ambiental com base em indicador microbiológico de balneabilidade no município de Palmas-TO","authors":"D. J. Barros, Anelise Kappes Marques, P. B. Morais","doi":"10.18067/JBFS.V2I4.65","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.65","url":null,"abstract":"UHE Lajeado reservoir is located in the central region of Tocantins State and it has favorable conditions to recreational activities. The margins of the reservoir exhibit a high recreational potential, thus, the sanitary conditions must be ensured to allow safe primary contact with waters. Balneability indicators should be assessed in environments with recreational purposes aiming the prediction and also to prevent adverse effects on human health and aquatic biota. The present work assessed the indicator parameter of fecal contamination, Escherichia coli, in order to establish the balneability of four beaches, which are: Caju, Prata, Graciosa and Arnos, in the capital of Tocantins State, Palmas. The detection and counting of Escherichia coli used the chromogenic substrate technique of samples taken at five weeks interval during the period of 2012 and 2015. Escherichia coli counting were low and allowed the classification of the beach waters to be very good to excellent based on legal requirements CONAMA No 274/2000. Hence, this work contributes to build an important database about microbiological conditions of the waters of Lajeado reservoir.","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":"114623093","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}
C. Malta, Eskálath Morganna Silva Ferreira, C. M. Coelho, R. S. Pimenta
The antagonistic microorganisms (bacteria, yeasts and filamentous fungi) are able to exert an antagonistic effect on various pathogens being used to control various diseases of fruits and vegetables. This study aimed to isolate and test microorganisms present in Eugenia dysenterica DC against Aspergillus parasiticus, Colletotrichum gloeosporioides, and Monilinia fructicola and in vitro. Stems and leaves were collected from 30 specimens of cagaiteira. The samples were submited to a surface disinfection, according to the proposed by Rose, et. al, (2010). Fragments were inoculated on Petri plates containing the agar Potato 25-28 ° C for 60 days. 263 endophytic fungi strains were obtained, purified and assessed for their potential in to produce inhibitore volatile or diffusible substances. A total of 96 isolates showed antagonistic activity against plant pathogens. 45 isolates being able to inhibit the growth of A. parasiticus. Against the pathogen C. gloeosporioides 68 endophytes showed antagonist activity. Against the pathogen M. fructicola only 17 fungi were able to exert inhibitory effect. These isolates showed potential for the production of bioactive substances against these pathogens.
{"title":"Endophytic fungi Eugenia dysenterica DC as biocontrol of plant pathogens in vitro / Fungos endofíticos de Eugenia dysenterica DC como biocontroladores de fitopatógenos in vitro.","authors":"C. Malta, Eskálath Morganna Silva Ferreira, C. M. Coelho, R. S. Pimenta","doi":"10.18067/JBFS.V2I4.68","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.68","url":null,"abstract":"The antagonistic microorganisms (bacteria, yeasts and filamentous fungi) are able to exert an antagonistic effect on various pathogens being used to control various diseases of fruits and vegetables. This study aimed to isolate and test microorganisms present in Eugenia dysenterica DC against Aspergillus parasiticus, Colletotrichum gloeosporioides, and Monilinia fructicola and in vitro. Stems and leaves were collected from 30 specimens of cagaiteira. The samples were submited to a surface disinfection, according to the proposed by Rose, et. al, (2010). Fragments were inoculated on Petri plates containing the agar Potato 25-28 ° C for 60 days. 263 endophytic fungi strains were obtained, purified and assessed for their potential in to produce inhibitore volatile or diffusible substances. A total of 96 isolates showed antagonistic activity against plant pathogens. 45 isolates being able to inhibit the growth of A. parasiticus. Against the pathogen C. gloeosporioides 68 endophytes showed antagonist activity. Against the pathogen M. fructicola only 17 fungi were able to exert inhibitory effect. These isolates showed potential for the production of bioactive substances against these pathogens.","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":"129846917","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}
Anelise Kappes Marques, D. J. Barros, P. B. Morais
Cyanobacteria are typical phytoplankton components and they have received attention from the scientific community due to develop blooms in eutrophic environments. The Trophic State Index (TSI) is diagnosis of water body’s condition due to trophic level. This work aimed to estimate water quality from PCH Porto Franco reservoir based on Cyanobacteria abundance and TSI. During the period of 2009 to 2014, 19 sampling were performed in four points in which were analyzed the phytoplankton community, phosphorus and chlorophyll a. Cyanobacteria were detected in all the monitored points and exhibit potentially toxic taxa, for instance, Cylindrospermopsis raciborski and Planktolyngbya limnetica. These organisms are substantially toxic and may provoke harm to human health and to the environment. The Cyanobacteria dominance is associated with mesotrophic to hypereutrophic conditions, which have occurred mainly in upstream barriers. The predominance of a lentic environment, underwater radiation availability and high nutrient concentration demonstrated by TSI are conditions that determine the significantly development of Cyanobacteria in this reservoir.
{"title":"Temporal analysis of Cyanobacteria and Trophic State Index in PCH Porto Franco (Tocantin's State, North Brazil) / Análise temporal de Cyanobacteria e Índice de Estado Trófico na PCH Porto Franco, Tocantins","authors":"Anelise Kappes Marques, D. J. Barros, P. B. Morais","doi":"10.18067/JBFS.V2I4.57","DOIUrl":"https://doi.org/10.18067/JBFS.V2I4.57","url":null,"abstract":"Cyanobacteria are typical phytoplankton components and they have received attention from the scientific community due to develop blooms in eutrophic environments. The Trophic State Index (TSI) is diagnosis of water body’s condition due to trophic level. This work aimed to estimate water quality from PCH Porto Franco reservoir based on Cyanobacteria abundance and TSI. During the period of 2009 to 2014, 19 sampling were performed in four points in which were analyzed the phytoplankton community, phosphorus and chlorophyll a. Cyanobacteria were detected in all the monitored points and exhibit potentially toxic taxa, for instance, Cylindrospermopsis raciborski and Planktolyngbya limnetica. These organisms are substantially toxic and may provoke harm to human health and to the environment. The Cyanobacteria dominance is associated with mesotrophic to hypereutrophic conditions, which have occurred mainly in upstream barriers. The predominance of a lentic environment, underwater radiation availability and high nutrient concentration demonstrated by TSI are conditions that determine the significantly development of Cyanobacteria in this reservoir.","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":"115891223","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}
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