Pub Date : 2020-06-30DOI: 10.18067/JBFS.V7I3.302.G291
Gisele Cristina Rabelo Silva
Emulsifying properties of oil in water emulsions using chicken egg white and dried egg white as an emulsifying agent were investigated using the conductivity technique. Changes in emulsion conductivity were recorded during and after homogenization and interpreted in terms of properties related to the emulsifying activity (EA) and emulsion stability (ES). The effect of NaCl concentration (0.0, 0.1, 0.5 and 1.0 % w/w), chicken egg white and dried egg white concentration (1.0, 2.5 and 5.0 % w/w) was studied using two vegetable oils, namely corn and canola. In general, it was observed that the EA and ES increase with increasing protein content and salt concentration, in a manner consistent with past research.
{"title":"Determination of emulsifying properties of chicken egg white and dehydrated egg white in different vegetable oils and ion concentration","authors":"Gisele Cristina Rabelo Silva","doi":"10.18067/JBFS.V7I3.302.G291","DOIUrl":"https://doi.org/10.18067/JBFS.V7I3.302.G291","url":null,"abstract":"Emulsifying properties of oil in water emulsions using chicken egg white and dried egg white as an emulsifying agent were investigated using the conductivity technique. Changes in emulsion conductivity were recorded during and after homogenization and interpreted in terms of properties related to the emulsifying activity (EA) and emulsion stability (ES). The effect of NaCl concentration (0.0, 0.1, 0.5 and 1.0 % w/w), chicken egg white and dried egg white concentration (1.0, 2.5 and 5.0 % w/w) was studied using two vegetable oils, namely corn and canola. In general, it was observed that the EA and ES increase with increasing protein content and salt concentration, in a manner consistent with past research.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120940327","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}
Daniel Ramos Oliveira Sutti, L. Kunigk, Cynthia Jurkiewikz
The e-coat process is the first step in automotive painting and consists of immersing the part in a conductive water-based paint bath, followed by several rinse tanks and preceded by a rinse tank with demineralized water after pre-treatment. In this process, microbiological contamination is common, which is prevented or eliminated by adding isothiazolone based biocides combined with other active components. The objective of this study was to evaluate the efficiency of two commercial biocides containing the active components, 5-Chloro-2-methyl-2H-isothiazol-3-one (CIT) and 2-Methyl-2H-isothiazol-3-one (MIT), in the inactivation of two Staphylococcus warneri strains, isolated from contaminated water from tanks of an e-coat paint applicator company. The Minimum Inhibitory Concentration (MIC) was 5 mg/L and the Minimum Bactericide Concentration (MBC) was 10 mg/L for both biocides. Survival curves were obtained and the Weibull model was adjusted. The models obtained indicated lower resistance of S. warneri strain isolated from the demineralized water tank and higher inactivation rate of the biocide containing the association of isothiazolinone and ethylenedioxy (dimethanol).
电子涂层工艺是汽车涂装的第一步，包括将零件浸入导电水性涂料浴中，然后进行几个冲洗槽，预处理后再进行带有去盐水的冲洗槽。在这个过程中，微生物污染是常见的，通过添加基于异噻唑酮的杀菌剂和其他活性成分来防止或消除微生物污染。本研究的目的是评价含有活性成分5-氯-2-甲基-2- h -异噻唑-3-one (CIT)和2-甲基-2- h -异噻唑-3-one (MIT)的两种商用杀菌剂对两株从某涂料喷涂公司水箱污染水中分离出来的瓦纳利葡萄球菌的灭活效果。两种杀菌剂的最小抑菌浓度(MIC)为5 mg/L，最小杀菌浓度(MBC)为10 mg/L。获得生存曲线，并对威布尔模型进行调整。结果表明，从脱矿水箱中分离出的warneri S.菌株的耐药性较低，而含有异噻唑啉酮和乙烯二氧基(二甲醇)缔合物的杀菌剂的失活率较高。
{"title":"Izothiazolone based biocides: efficiency evaluation on Staphylococcus warneri isolated from e-coat process rinse water","authors":"Daniel Ramos Oliveira Sutti, L. Kunigk, Cynthia Jurkiewikz","doi":"10.18067/jbfs.v7i2.278","DOIUrl":"https://doi.org/10.18067/jbfs.v7i2.278","url":null,"abstract":"The e-coat process is the first step in automotive painting and consists of immersing the part in a conductive water-based paint bath, followed by several rinse tanks and preceded by a rinse tank with demineralized water after pre-treatment. In this process, microbiological contamination is common, which is prevented or eliminated by adding isothiazolone based biocides combined with other active components. The objective of this study was to evaluate the efficiency of two commercial biocides containing the active components, 5-Chloro-2-methyl-2H-isothiazol-3-one (CIT) and 2-Methyl-2H-isothiazol-3-one (MIT), in the inactivation of two Staphylococcus warneri strains, isolated from contaminated water from tanks of an e-coat paint applicator company. The Minimum Inhibitory Concentration (MIC) was 5 mg/L and the Minimum Bactericide Concentration (MBC) was 10 mg/L for both biocides. Survival curves were obtained and the Weibull model was adjusted. The models obtained indicated lower resistance of S. warneri strain isolated from the demineralized water tank and higher inactivation rate of the biocide containing the association of isothiazolinone and ethylenedioxy (dimethanol).","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115656872","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}
The present study aimed to evaluate the physio-chemical properties of four Indian and Yemeni types of honey Coorg and Kashmiri honey (India), Sidr and Acacia honey (Yemen). The honey samples appeared to conform to the European Legislation (EC Directive 2001) for most of the parameters. The moisture content of the samples varied between 13.5 to 19.5g/100g, Indian honey were the highest moisture content. PH values ranged between 4.7 to 5.6, all tested samples were light acidic. Electrical conductivity ranged from 0.13 to 1.4mS /cm. The color intensity values ranged between 137.3 to 624.7mAU. HMF content fluctuated between 15.4 to 19.9 mg / kg. The ash content varied from 0.05 to 0.68%. The total protein content varied between 0.61 to 1.9 %. The diastase activity values ranged between 9.6 to 11.9 DN. The Kashmiri honey showed the highest value of reducing sugars (64.6 g/100g), while Acacia honey showed the lowest value (59.9 g/100 g) The estimated fructose/glucose ratio for all investigated samples was ranged from 1. 03 to 1.37 and estimated glucose/water ratio was ranged from 1.48 to 1.90. Potassium was found to be the predominant mineral in all honey tested. The highest Potassium content (2176.4 mg/kg) was found in Sidr Yemeni honey. The heavy metals were not detected in all honey samples, that the tested honey was safe for human consumption. The results suggest that Indian and Yemeni honey could be beneficially used as a functional or nutraceutical substance.
{"title":"Physico-chemical characteristics of some Indian and Yemeni Honey","authors":"M. Saeed, M. Jayashankar","doi":"10.18067/jbfs.v7i2.283","DOIUrl":"https://doi.org/10.18067/jbfs.v7i2.283","url":null,"abstract":"The present study aimed to evaluate the physio-chemical properties of four Indian and Yemeni types of honey Coorg and Kashmiri honey (India), Sidr and Acacia honey (Yemen). The honey samples appeared to conform to the European Legislation (EC Directive 2001) for most of the parameters. The moisture content of the samples varied between 13.5 to 19.5g/100g, Indian honey were the highest moisture content. PH values ranged between 4.7 to 5.6, all tested samples were light acidic. Electrical conductivity ranged from 0.13 to 1.4mS /cm. The color intensity values ranged between 137.3 to 624.7mAU. HMF content fluctuated between 15.4 to 19.9 mg / kg. The ash content varied from 0.05 to 0.68%. The total protein content varied between 0.61 to 1.9 %. The diastase activity values ranged between 9.6 to 11.9 DN. The Kashmiri honey showed the highest value of reducing sugars (64.6 g/100g), while Acacia honey showed the lowest value (59.9 g/100 g) The estimated fructose/glucose ratio for all investigated samples was ranged from 1. 03 to 1.37 and estimated glucose/water ratio was ranged from 1.48 to 1.90. Potassium was found to be the predominant mineral in all honey tested. The highest Potassium content (2176.4 mg/kg) was found in Sidr Yemeni honey. The heavy metals were not detected in all honey samples, that the tested honey was safe for human consumption. The results suggest that Indian and Yemeni honey could be beneficially used as a functional or nutraceutical substance.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134225263","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}
N. R. R. Nascimento-Silva, N. S. R. Mendes, F. Silva
Pequi ( Caryocar brasiliense subsp. brasiliense , Cambess), has relevant levels of lipids, fibers, and carotenoids, and can thus have a relevant effect on lipid metabolism and as an antioxidant agent. Therefore, the purpose of the present study was to describe the physical and chemical characteristics of the pulp of C. brasiliense Cambess collected in two cities of Minas Gerais, as well as its content of phenolic compounds. The fruits of C. brasiliense Cambess were collected in two cities in Minas Gerais: the Ponto Chique and the Jequitai on the ground after a natural fall, being submitted to hygiene and manually pulped. Then, the fruits underwent physical and chemical analyzes. To determine the nutritional composition of the fruits, moisture, ash, lipids, proteins, and total carbohydrates were analyzed. In order to prove the bioactive potential of the pequi pulp, an analysis of total phenolic compounds was carried out. The evaluation of the physical and chemical composition of the pulp of C. brasiliense Cambess from different cities in the north of Minas Gerais showed only physical differences and in the contents of phenolic compounds, possibly due to the great geographical proximity. However, further study is needed to determine the viability of pequi pulp as well as the fruits native to different regions of Minas Gerais. Both pulps stood out because of their considerable lipid and ash concentrations. Through the results, the potential of C. brasiliense Cambess was determined. There is evidence for significant antioxidant potential because of natural bioactive compounds present in the pulps.
{"title":"Nutritional composition and total phenolic compounds content of pequi pulp (Caryocar brasiliense Cambess.)","authors":"N. R. R. Nascimento-Silva, N. S. R. Mendes, F. Silva","doi":"10.18067/jbfs.v7i2.281","DOIUrl":"https://doi.org/10.18067/jbfs.v7i2.281","url":null,"abstract":"Pequi ( Caryocar brasiliense subsp. brasiliense , Cambess), has relevant levels of lipids, fibers, and carotenoids, and can thus have a relevant effect on lipid metabolism and as an antioxidant agent. Therefore, the purpose of the present study was to describe the physical and chemical characteristics of the pulp of C. brasiliense Cambess collected in two cities of Minas Gerais, as well as its content of phenolic compounds. The fruits of C. brasiliense Cambess were collected in two cities in Minas Gerais: the Ponto Chique and the Jequitai on the ground after a natural fall, being submitted to hygiene and manually pulped. Then, the fruits underwent physical and chemical analyzes. To determine the nutritional composition of the fruits, moisture, ash, lipids, proteins, and total carbohydrates were analyzed. In order to prove the bioactive potential of the pequi pulp, an analysis of total phenolic compounds was carried out. The evaluation of the physical and chemical composition of the pulp of C. brasiliense Cambess from different cities in the north of Minas Gerais showed only physical differences and in the contents of phenolic compounds, possibly due to the great geographical proximity. However, further study is needed to determine the viability of pequi pulp as well as the fruits native to different regions of Minas Gerais. Both pulps stood out because of their considerable lipid and ash concentrations. Through the results, the potential of C. brasiliense Cambess was determined. There is evidence for significant antioxidant potential because of natural bioactive compounds present in the pulps.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124613016","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}
Matheus Antonio Nery Ferraro, E. P. Pinto, R. Matos
Recently, much research in the field of biomaterials has focused on finding better material to serve as a dressing or temporary skin replacement, often without success. Kefir and Cupuacu ( Theobroma grandiflorum Schum) have therapeutic potential for use in this field. In this study, a morphological and statistical analysis of the superficial distribution of bacteria and yeasts in kefir biofilms prepared with Cupuacu juice, obtained from the inoculation of kefir grains in brown sugar solution was performed. Six samples of different concentrations of the biofilms were obtained, which were analyzed in an Atomic Force Microscope to obtain topography images. Statistical analyses were performed on the surface parameters in order to determine the number and surface coverage of microorganisms in biofilms. The morphological analysis showed that the surfaces of the biofilms are composed of microorganisms similar to bacteria and yeasts. Statistical analysis showed that biofilms with a concentration of Cupuacu between 10 and 40 g.L -1 present a greater number and coverage of bacteria. All results show that the Cupuacu 10 g.L -1 biofilm presented the most appropriate, considering that it presented a higher number and coverage of bacteria, which is the antibacterial agent. In this perspective, the results indicate that there is an expectation of biofilms to result in a future application in the pharmaceutical industry.
{"title":"Study of the superficial distribution of microorganisms in kefir biofilms prepared with Cupuaçu juice","authors":"Matheus Antonio Nery Ferraro, E. P. Pinto, R. Matos","doi":"10.18067/jbfs.v7i2.273","DOIUrl":"https://doi.org/10.18067/jbfs.v7i2.273","url":null,"abstract":"Recently, much research in the field of biomaterials has focused on finding better material to serve as a dressing or temporary skin replacement, often without success. Kefir and Cupuacu ( Theobroma grandiflorum Schum) have therapeutic potential for use in this field. In this study, a morphological and statistical analysis of the superficial distribution of bacteria and yeasts in kefir biofilms prepared with Cupuacu juice, obtained from the inoculation of kefir grains in brown sugar solution was performed. Six samples of different concentrations of the biofilms were obtained, which were analyzed in an Atomic Force Microscope to obtain topography images. Statistical analyses were performed on the surface parameters in order to determine the number and surface coverage of microorganisms in biofilms. The morphological analysis showed that the surfaces of the biofilms are composed of microorganisms similar to bacteria and yeasts. Statistical analysis showed that biofilms with a concentration of Cupuacu between 10 and 40 g.L -1 present a greater number and coverage of bacteria. All results show that the Cupuacu 10 g.L -1 biofilm presented the most appropriate, considering that it presented a higher number and coverage of bacteria, which is the antibacterial agent. In this perspective, the results indicate that there is an expectation of biofilms to result in a future application in the pharmaceutical industry.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129769859","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}
Pub Date : 2019-09-28DOI: 10.18067/JBFS.V6I4.260.G254
Domingos Paschoal Marcon Tezza Neto, Álvaro José Gomes de Faria, Evandro Alves Ribeiro, Fabriny da Silva Ribeiro, R. C. Leite, Rubens Ribeiro da Silva
In cerrado soils, the occurrence of micronutrient deficiency in several crops has been more and more frequent, being caused by the incorrect application of micronutrient sources and doses in the soil. Therefore, the objective of this work was to evaluate sources and doses of different water solubilities in the construction of micronutrient fertility in cerrado soil. The experiment was conducted in a greenhouse, the soil used was a dystrophic Red-Yellow Oxissol. The experimental design was in randomized block (DBC), arranged in a 6 x 2 factorial scheme, with three replications. The treatments consisted of control treatment and five doses for each source (0; 50; 100; 150; 200 and 250 kg ha -1 ) and two micronutrient sources of different water solubilization (FTE BR12 and Spene®). Spene® presented higher Cu, Zn, B and Mn availability compared to FTE BR12, regardless of the dose used. The agronomic efficiency of Cu, Zn and Mn availability with the use of the Spene® source is 29, 11 and 5% higher than the use of the FTE BR12 source. The use of Spene® in cerrado soils may be a promising alternative in the availability of micronutrient crops.
在塞拉多土壤中，几种作物微量营养素缺乏的发生越来越频繁，这是由于土壤中微量营养素来源和剂量施用不当造成的。因此，本工作的目的是评估不同水溶性的来源和剂量在塞拉多土壤微量元素肥力建设中的作用。试验在温室中进行，使用的土壤为营养不良的红黄Oxissol。实验设计为随机区(DBC)，按6 × 2的阶乘方案安排，3个重复。处理包括对照处理和每个源5个剂量(0;50;100;150;200和250 kg ha -1)和两种不同水溶性的微量营养素来源(FTE BR12和Spene®)。与FTE BR12相比，无论使用何种剂量，Spene®均具有更高的Cu、Zn、B和Mn利用率。与使用FTE BR12源相比，使用Spene®源的Cu、Zn和Mn有效性的农艺效率分别高出29%、11%和5%。在塞拉多土壤中使用Spene®可能是一种很有前途的替代微量营养素作物的可用性。
{"title":"Oxides and oxy-sulphates as sources of micronutrients in the construction of the fertility of an oxisol.","authors":"Domingos Paschoal Marcon Tezza Neto, Álvaro José Gomes de Faria, Evandro Alves Ribeiro, Fabriny da Silva Ribeiro, R. C. Leite, Rubens Ribeiro da Silva","doi":"10.18067/JBFS.V6I4.260.G254","DOIUrl":"https://doi.org/10.18067/JBFS.V6I4.260.G254","url":null,"abstract":"In cerrado soils, the occurrence of micronutrient deficiency in several crops has been more and more frequent, being caused by the incorrect application of micronutrient sources and doses in the soil. Therefore, the objective of this work was to evaluate sources and doses of different water solubilities in the construction of micronutrient fertility in cerrado soil. The experiment was conducted in a greenhouse, the soil used was a dystrophic Red-Yellow Oxissol. The experimental design was in randomized block (DBC), arranged in a 6 x 2 factorial scheme, with three replications. The treatments consisted of control treatment and five doses for each source (0; 50; 100; 150; 200 and 250 kg ha -1 ) and two micronutrient sources of different water solubilization (FTE BR12 and Spene®). Spene® presented higher Cu, Zn, B and Mn availability compared to FTE BR12, regardless of the dose used. The agronomic efficiency of Cu, Zn and Mn availability with the use of the Spene® source is 29, 11 and 5% higher than the use of the FTE BR12 source. The use of Spene® in cerrado soils may be a promising alternative in the availability of micronutrient crops.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115732884","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}
The Bananal/Cantao Island Protected Area (APA) is the largest Protected Area in Tocantins State and is the second largest soybean producing region in the Tocantins, establishing a relationship of economic, social and environmental interests that are often conflicting. This article presents the evolution and the main factors that involve the soybean crop in APA. By means of bibliographical researches, field visits and interviews with the soybean farmers of the APA, it was demonstrated the growth of more than 1,700% of the areas planted with soybeans over a period of 8 years, in which there was significant deforestation in the region. It has also been identified that cultivation takes place in large property, encouraged by the climate and low land prices, and the lack of skilled labor is the main difficulty encountered by soy farmers. It was also identified the non-compliance of environmental legislation by local producers.
{"title":"Overview of soybean cultivation and productivity in Bananal/Cantão Island Protected Area, Tocantins: harvests 2008/2009 to 2015/2016","authors":"Deny Cesar Moreira, E. Collicchio, F. Gamba","doi":"10.18067/JBFS.V6I4.262","DOIUrl":"https://doi.org/10.18067/JBFS.V6I4.262","url":null,"abstract":"The Bananal/Cantao Island Protected Area (APA) is the largest Protected Area in Tocantins State and is the second largest soybean producing region in the Tocantins, establishing a relationship of economic, social and environmental interests that are often conflicting. This article presents the evolution and the main factors that involve the soybean crop in APA. By means of bibliographical researches, field visits and interviews with the soybean farmers of the APA, it was demonstrated the growth of more than 1,700% of the areas planted with soybeans over a period of 8 years, in which there was significant deforestation in the region. It has also been identified that cultivation takes place in large property, encouraged by the climate and low land prices, and the lack of skilled labor is the main difficulty encountered by soy farmers. It was also identified the non-compliance of environmental legislation by local producers.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126165513","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}
Pub Date : 2019-09-18DOI: 10.18067/JBFS.V6I4.269.G252
Felipe Mateus Silva Holsbach, S. Pizato, Nayane Tinno Fonteles, Pâmela Davalos de Souza, R. Pinedo, William Renzo Cortez-Vega
The objective of the present work was to evaluate the quality of minimally processed papaya using different concentrations of cassava starch, glycerol and clove essential oil as edible coatings. The papayas were washed, peeled, cut, submerged in the coatings and drained. They were stored in PET packaging for 15 days at 4 °C. Five treatments were obtained: T1 - Control (papaya without coating); T2 – 30% starch, 20% glycerol and 0.5% clove essential oil; T3 - 30% starch, 30% glycerol and 0.5% clove essential oil; T4 - 30% starch, 20% glycerol and 1% clove essential oil; T5 – 30% starch, 30% glycerol and 1% clove essential oil. T1 had the highest mass loss (7.92%) and T4, which lost the least (4.70%). The texture values oscillated as the storage days. In relation to the luminosity, the values decreased with the passing of storage days. T4 was the best in relation to inhibition of psychrotrophic microorganisms and molds and yeasts. Sensorially the T4 treatment was the one that obtained the highest notes at the end of the days of storage. Thus, the T4 treatment was the most efficient to maintain the quality of the papaya.
{"title":"Evaluation of shelf life of Formosa papaya (Carica papaya L.) minimally processed using coating of cassava starch and essential clove oil.","authors":"Felipe Mateus Silva Holsbach, S. Pizato, Nayane Tinno Fonteles, Pâmela Davalos de Souza, R. Pinedo, William Renzo Cortez-Vega","doi":"10.18067/JBFS.V6I4.269.G252","DOIUrl":"https://doi.org/10.18067/JBFS.V6I4.269.G252","url":null,"abstract":"The objective of the present work was to evaluate the quality of minimally processed papaya using different concentrations of cassava starch, glycerol and clove essential oil as edible coatings. The papayas were washed, peeled, cut, submerged in the coatings and drained. They were stored in PET packaging for 15 days at 4 °C. Five treatments were obtained: T1 - Control (papaya without coating); T2 – 30% starch, 20% glycerol and 0.5% clove essential oil; T3 - 30% starch, 30% glycerol and 0.5% clove essential oil; T4 - 30% starch, 20% glycerol and 1% clove essential oil; T5 – 30% starch, 30% glycerol and 1% clove essential oil. T1 had the highest mass loss (7.92%) and T4, which lost the least (4.70%). The texture values oscillated as the storage days. In relation to the luminosity, the values decreased with the passing of storage days. T4 was the best in relation to inhibition of psychrotrophic microorganisms and molds and yeasts. Sensorially the T4 treatment was the one that obtained the highest notes at the end of the days of storage. Thus, the T4 treatment was the most efficient to maintain the quality of the papaya.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134200693","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}
Weskley da Silva Cotrim, Keyla Cristina Francisco Cotrim, Jamille C. Coimbra
Due to its great polluting potential, different strategies for the industrial use of whey have been adopted. However, in Brazil, a large part of the whey is still not adequately disposed. In this context, the production of carbonated beverages based on whey is an alternative to be considered. However, it is necessary to evaluate the adequacy of the available technology as well as the economic viability of the project in different scenarios before deciding on its implementation. Thus, in this work, mathematical modeling and simulations were proposed to analyze the economic scenarios of the production process of a carbonated beverage based on fermented milk whey added with hibiscus flower extract (Hibiscus sabdariffa L.). The industrial process was structured in four sections: preparation of the fermented whey, preparation of the glucose syrup, preparation of the hibiscus flower extract and preparation of the final drink. The best results were obtained for a whey processing volume of 7,000 kg per batch. The project presented an Internal Rate of Return of 49.77% and a Time of Return of Capital of 10 months. These results show the potential use of whey in the production of carbonated beverages.
{"title":"Modeling and analysis of economic scenarios of the whey-based carbonated beverage production process","authors":"Weskley da Silva Cotrim, Keyla Cristina Francisco Cotrim, Jamille C. Coimbra","doi":"10.18067/JBFS.V6I4.266","DOIUrl":"https://doi.org/10.18067/JBFS.V6I4.266","url":null,"abstract":"Due to its great polluting potential, different strategies for the industrial use of whey have been adopted. However, in Brazil, a large part of the whey is still not adequately disposed. In this context, the production of carbonated beverages based on whey is an alternative to be considered. However, it is necessary to evaluate the adequacy of the available technology as well as the economic viability of the project in different scenarios before deciding on its implementation. Thus, in this work, mathematical modeling and simulations were proposed to analyze the economic scenarios of the production process of a carbonated beverage based on fermented milk whey added with hibiscus flower extract (Hibiscus sabdariffa L.). The industrial process was structured in four sections: preparation of the fermented whey, preparation of the glucose syrup, preparation of the hibiscus flower extract and preparation of the final drink. The best results were obtained for a whey processing volume of 7,000 kg per batch. The project presented an Internal Rate of Return of 49.77% and a Time of Return of Capital of 10 months. These results show the potential use of whey in the production of carbonated beverages.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127982240","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}
The goal of this study was investigate effects of pH and temperature on the production of tra fish protein hydrolysate (FPH) fish protein concentrate (FPC) using alcalase and characterization of FPHs. Temperature of 55 o C and pH 8.5 were the best condition for highest degree of hydrolysis (around 55%) after 60 min of reaction. Under hydrolysis, protein solubility was significantly increased from 4% to >90%. FPC contained fractions of 50, 40, 37, 15, 12, and 11×10 3 g/mol. After 15 or 120 min of enzymatic reaction, molecular weight was degraded to 4.86 and 4.31 (x10 3 g/mol) of FPH15 or FPH120 samples. Due to the increasing of protein solubility during the hydrolysis, water holding capacity reduced from 2.81 ml/g (FPC) to FPH120>FPC and FPH120>FPH15>FPC. Furthermore, foam activity index and foam stability index of samples were arranged as FPH15>FPH120> FPC. At pH 4.0, all these indexes were lowest. Generally, under enzymatic hydrolysis, FPH could be possessed of different molecular weights and physico-chemical properties. Thus, FPH could reach various demand of industrial applications.
{"title":"Production and characteristics of protein hydrolysate from tra fish (Pangasius hypophthalmus)","authors":"S. Trịnh, T. Nguyen","doi":"10.18067/jbfs.v6i4.264","DOIUrl":"https://doi.org/10.18067/jbfs.v6i4.264","url":null,"abstract":"The goal of this study was investigate effects of pH and temperature on the production of tra fish protein hydrolysate (FPH) fish protein concentrate (FPC) using alcalase and characterization of FPHs. Temperature of 55 o C and pH 8.5 were the best condition for highest degree of hydrolysis (around 55%) after 60 min of reaction. Under hydrolysis, protein solubility was significantly increased from 4% to >90%. FPC contained fractions of 50, 40, 37, 15, 12, and 11×10 3 g/mol. After 15 or 120 min of enzymatic reaction, molecular weight was degraded to 4.86 and 4.31 (x10 3 g/mol) of FPH15 or FPH120 samples. Due to the increasing of protein solubility during the hydrolysis, water holding capacity reduced from 2.81 ml/g (FPC) to FPH120>FPC and FPH120>FPH15>FPC. Furthermore, foam activity index and foam stability index of samples were arranged as FPH15>FPH120> FPC. At pH 4.0, all these indexes were lowest. Generally, under enzymatic hydrolysis, FPH could be possessed of different molecular weights and physico-chemical properties. Thus, FPH could reach various demand of industrial applications.","PeriodicalId":119762,"journal":{"name":"Journal of Bioenergy and Food Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121211113","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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