Mariane Fraga Dias Santana, J. P. D. Anjos, M. Fontes, T. B. R. Nery
The present paper discusses the presence of microorganisms in textile materials, especially in car seats, and the use of antimicrobial agents. We observed that the main agent between the user and the car's microbial system are the seats, due to the direct contact with the users. In addition, the environment in which the car is inserted, the type of car, and the seat fabric-type influence directly the reproduction of the microbial system. Microorganisms found in different parts of cars, especially in seats, could be potential threats to human health. Thus, to combat these microorganisms, it is necessary to study antimicrobial agents aimed at eliminating or inhibiting their reproduction and, consequently, promoting hygiene, ensuring the health and well-being of car users.
{"title":"Presence of Microorganisms and Use of Antimicrobial Agents in Car Seat Fabrics: A Brief Review","authors":"Mariane Fraga Dias Santana, J. P. D. Anjos, M. Fontes, T. B. R. Nery","doi":"10.34178/JBTH.V4I2.163","DOIUrl":"https://doi.org/10.34178/JBTH.V4I2.163","url":null,"abstract":"The present paper discusses the presence of microorganisms in textile materials, especially in car seats, and the use of antimicrobial agents. We observed that the main agent between the user and the car's microbial system are the seats, due to the direct contact with the users. In addition, the environment in which the car is inserted, the type of car, and the seat fabric-type influence directly the reproduction of the microbial system. Microorganisms found in different parts of cars, especially in seats, could be potential threats to human health. Thus, to combat these microorganisms, it is necessary to study antimicrobial agents aimed at eliminating or inhibiting their reproduction and, consequently, promoting hygiene, ensuring the health and well-being of car users.","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130450507","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}
Fernanda dos Santos Cardoso, I. Leal, T. B. R. Nery
The use of agro-industrial residues is presented in food waste. The processing of them is an opportunity for the development of by-products, as well as the aggregation of lost value, and the sustainable use of these residues. The study aimed to characterize the bioactive compounds in grape, carrot, cocoa, and banana skins from the processing of juice, banana chips, and chocolate. The analyzed samples showed good moisture, satisfactory water activity value, with the highest flavonoid content in the grape sample (1.679 mg EQ/g) and the highest phenolic content in the cocoa epicarp sample (1.367 mg EAG/g). In this way, we verified the viability of using food peels in the food industry, enabling the use of waste generated.
{"title":"Characterization of Bioactive Compounds in Fruit and Vegetable Bagasse","authors":"Fernanda dos Santos Cardoso, I. Leal, T. B. R. Nery","doi":"10.34178/JBTH.V4I2.161","DOIUrl":"https://doi.org/10.34178/JBTH.V4I2.161","url":null,"abstract":"The use of agro-industrial residues is presented in food waste. The processing of them is an opportunity for the development of by-products, as well as the aggregation of lost value, and the sustainable use of these residues. The study aimed to characterize the bioactive compounds in grape, carrot, cocoa, and banana skins from the processing of juice, banana chips, and chocolate. The analyzed samples showed good moisture, satisfactory water activity value, with the highest flavonoid content in the grape sample (1.679 mg EQ/g) and the highest phenolic content in the cocoa epicarp sample (1.367 mg EAG/g). In this way, we verified the viability of using food peels in the food industry, enabling the use of waste generated.","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129229414","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 emergence of geosynthetics changed many aspects of the project and construction of civil and environmental works. Due to the existence of a wide variety of products and the constant advancement in the development and dissemination of new technologies. These materials are applied in different engineering solutions, highlighting the possibility of using recyclable and biodegradable materials and executing geotechnical and environmental works ranging from the control of erosion to the protection of groundwater. In this context, this work presents a literature review on the use of recyclable and biodegradable materials as geosynthetic products, as well as their association with traditional geosynthetics for solutions in engineering works. The review was carried out through the platforms Google Scholar and Portal of Journals of CAPES, using keywords and Boolean connectors as descriptors. It is observed that there is a potential for the use of recyclable and biodegradable materials as geosynthetics. However, there is still a need for a careful assessment concerning the benefits, limitations, and impacts caused by the use of these wastes.
{"title":"Review on the Use of Recyclable and Biodegradable Materials as Geosynthetics","authors":"L. Margalho, L. S. P. Cardoso","doi":"10.34178/JBTH.V4I2.165","DOIUrl":"https://doi.org/10.34178/JBTH.V4I2.165","url":null,"abstract":"The emergence of geosynthetics changed many aspects of the project and construction of civil and environmental works. Due to the existence of a wide variety of products and the constant advancement in the development and dissemination of new technologies. These materials are applied in different engineering solutions, highlighting the possibility of using recyclable and biodegradable materials and executing geotechnical and environmental works ranging from the control of erosion to the protection of groundwater. In this context, this work presents a literature review on the use of recyclable and biodegradable materials as geosynthetic products, as well as their association with traditional geosynthetics for solutions in engineering works. The review was carried out through the platforms Google Scholar and Portal of Journals of CAPES, using keywords and Boolean connectors as descriptors. It is observed that there is a potential for the use of recyclable and biodegradable materials as geosynthetics. However, there is still a need for a careful assessment concerning the benefits, limitations, and impacts caused by the use of these wastes.","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116702397","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}
Emanuele Santana Bispo dos Santos, I. Leal, T. B. R. Nery
Cocoa (Theobroma cacao L.) is a fruit widely cultivated in the world, mainly because it is the natural material used in the production of chocolate. Cocoa husk corresponds to approximately 80% of the fruit and is the main residue of production involving this fruit. Therefore, studies have been carried out to reuse the cocoa husk, including the extraction of pectin, which is a soluble dietary fiber present in the cell wall of many fruits. The study aimed to extract pectin from the cocoa husk, presenting parameters such as acid concentration, temperature, extraction time and the quantification obtained. The results were compared with literature data regarding extraction from other sources. In the study, the yield of pectin extracted from cocoa husk using 0.086% citric acid at 90°C for 60 minutes was 10.75% for the epicarp and 5.75% for the mesocarp.
{"title":"Extraction of Pectin from Epicarp and Mesocarp Fractions of Cocoa Shell","authors":"Emanuele Santana Bispo dos Santos, I. Leal, T. B. R. Nery","doi":"10.34178/JBTH.V4I2.160","DOIUrl":"https://doi.org/10.34178/JBTH.V4I2.160","url":null,"abstract":"Cocoa (Theobroma cacao L.) is a fruit widely cultivated in the world, mainly because it is the natural material used in the production of chocolate. Cocoa husk corresponds to approximately 80% of the fruit and is the main residue of production involving this fruit. Therefore, studies have been carried out to reuse the cocoa husk, including the extraction of pectin, which is a soluble dietary fiber present in the cell wall of many fruits. The study aimed to extract pectin from the cocoa husk, presenting parameters such as acid concentration, temperature, extraction time and the quantification obtained. The results were compared with literature data regarding extraction from other sources. In the study, the yield of pectin extracted from cocoa husk using 0.086% citric acid at 90°C for 60 minutes was 10.75% for the epicarp and 5.75% for the mesocarp.","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130375551","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}
J. Vieira, Diego C. Carneiro, Milena B. P. Soares, J. Barbosa
3D bioprinting consists in the printing of synthetic 3D structures used as biomaterials, along with cells, growth factors, and other components necessary to create a new functional organ. This technology can be applied to regenerative medicine and tissue engineering to treat diseases, test pharmaceuticals, and study the mechanisms underlying diseases. Currently, there are three basic types of 3D bioprinting technologies: laser, droplet, and extrusion. Laser-based bioprinters (LBP) use laser energy to induce the bioink transfer. Droplet-based bioprinters (DBP) expel the bioink dropwise throughout a nozzle. Inkjet-based bioprinters are the DBP commonly used for biological proposes, it is also a non-contact approach that releases controlled volumes of bioink drops in a continuous (CIJ) or under demand way (DOD). The extrusion-based bioprinters (EBB) also use pressure to force out the bioink, but consists of a syringe containing the material with a pneumatic or mechanical mechanism as dispensing system. Comparing to the other bioprinting technologies, extrusion printing is the most versatile and is indicated for bioprinting of scaffold prosthetic implants. The bioinks used in 3D bioprinting are composed of a solution with a biomaterial mixture, usually encapsulating cells. Biomaterials are essential components of 3D bioprinting technologies because they provide scaffolds as supporting physical structures for cells to attach, grow, differentiate, and develop into tissues. Numerous cell types have been used in 3D bioprinting to build cardiovascular, musculoskeletal, neural, hepatic, adipose and skin tissues. Bioprinting is an emerging technology that has the ability to revolutionize the way we address many health issues.
{"title":"Fundamentals of 3D Bioprinting Technology","authors":"J. Vieira, Diego C. Carneiro, Milena B. P. Soares, J. Barbosa","doi":"10.34178/JBTH.V4I2.162","DOIUrl":"https://doi.org/10.34178/JBTH.V4I2.162","url":null,"abstract":"3D bioprinting consists in the printing of synthetic 3D structures used as biomaterials, along with cells, growth factors, and other components necessary to create a new functional organ. This technology can be applied to regenerative medicine and tissue engineering to treat diseases, test pharmaceuticals, and study the mechanisms underlying diseases. Currently, there are three basic types of 3D bioprinting technologies: laser, droplet, and extrusion. Laser-based bioprinters (LBP) use laser energy to induce the bioink transfer. Droplet-based bioprinters (DBP) expel the bioink dropwise throughout a nozzle. Inkjet-based bioprinters are the DBP commonly used for biological proposes, it is also a non-contact approach that releases controlled volumes of bioink drops in a continuous (CIJ) or under demand way (DOD). The extrusion-based bioprinters (EBB) also use pressure to force out the bioink, but consists of a syringe containing the material with a pneumatic or mechanical mechanism as dispensing system. Comparing to the other bioprinting technologies, extrusion printing is the most versatile and is indicated for bioprinting of scaffold prosthetic implants. The bioinks used in 3D bioprinting are composed of a solution with a biomaterial mixture, usually encapsulating cells. Biomaterials are essential components of 3D bioprinting technologies because they provide scaffolds as supporting physical structures for cells to attach, grow, differentiate, and develop into tissues. Numerous cell types have been used in 3D bioprinting to build cardiovascular, musculoskeletal, neural, hepatic, adipose and skin tissues. Bioprinting is an emerging technology that has the ability to revolutionize the way we address many health issues.","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130307847","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. Machado, H. Lepikson, Matheus Antônio Nogueira de Andrade, Yasmim Thasla, S. Santos
This paper focuses on essential oil (EO) extraction via steam distillation and the technological possibilities to enhance both operational and environmental performances. Steam distillation is the most common extraction method (93% of the worldwide volume), the opportunities in these production systems become a concrete target for improvements and are reflected in the businesses overall results. This paper brings the green extraction approach and the technology upgrade as an evolutionary path for this industry. A real process conception, in its current technology level, was assessed under the light of digital technology focus in order to enhance process effectiveness both in terms of material and energy balances, with direct effects over environmental performance and quality.
{"title":"Technology as a Pillar for Essential Oil Green Extraction","authors":"C. Machado, H. Lepikson, Matheus Antônio Nogueira de Andrade, Yasmim Thasla, S. Santos","doi":"10.34178/JBTH.V4I1.148","DOIUrl":"https://doi.org/10.34178/JBTH.V4I1.148","url":null,"abstract":"This paper focuses on essential oil (EO) extraction via steam distillation and the technological possibilities to enhance both operational and environmental performances. Steam distillation is the most common extraction method (93% of the worldwide volume), the opportunities in these production systems become a concrete target for improvements and are reflected in the businesses overall results. This paper brings the green extraction approach and the technology upgrade as an evolutionary path for this industry. A real process conception, in its current technology level, was assessed under the light of digital technology focus in order to enhance process effectiveness both in terms of material and energy balances, with direct effects over environmental performance and quality. \u0000 ","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134577136","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}
Alan Araújo de Jesus, Adriano Araújo de Jesus, Flávia Oliveira de Lima, Luiz Antônio Rodrigues de Freitas, Cássio Santana Meira, Ricardo Ribeiro dos Santos, Milena Botelho Pereira Soares
Autogenous bone grafting is needed in some bone tissue defects; however, it causes secondary surgical wounds and morbidity. Tissue bioengineering may be an alternative approach for bone regeneration. Here we investigated the osteogenic potential of dental pulp stem cells from deciduous teeth (DPSC) in association with a Ricinus bone compound (RBC) in a model of bone defect. The influence of the biomaterial RBC on the proliferation and osteogenic differentiation of DPSC was assessed in vitro by MTT metabolism and alizarin red staining, respectively. The morphologic analysis was performed using the optic and scanning electron (SEM) microscopies. For the in vivo study, 54 Wistar rats submitted to calvarial defects were filled with RBC or RBC+DPSC. A control group had the defects filled only with blood clots. Analyses were performed 15, 30 and 60 days after treatment using digital radiography, optical microscopy, SEM and chemical analysis by electron dispersive spectroscopy. The Ricinus bone compound (RBC) did not inhibit the osteogenic differentiation in vitro. No spontaneous regeneration was observed in the control group. The area of the calvarial defect of the RBC+DPSC group showed greater radiopacity on day 15. The RBC presented no reabsorption, was biocompatible and showed osteointegration, working as a mechanical filling. Only sparse ossification areas were found and those were larger and more developed on the RBC+DPSC group when compared to animals treated only with RBC. RBC in association with DPSC is a promising combination for applications in bone regeneration.
{"title":"Association of Dental Pulp Stem Cells and Ricinus Bone Compound in a Model of Bone Defect","authors":"Alan Araújo de Jesus, Adriano Araújo de Jesus, Flávia Oliveira de Lima, Luiz Antônio Rodrigues de Freitas, Cássio Santana Meira, Ricardo Ribeiro dos Santos, Milena Botelho Pereira Soares","doi":"10.34178/jbth.v3i3.145","DOIUrl":"https://doi.org/10.34178/jbth.v3i3.145","url":null,"abstract":"Autogenous bone grafting is needed in some bone tissue defects; however, it causes secondary surgical wounds and morbidity. Tissue bioengineering may be an alternative approach for bone regeneration. Here we investigated the osteogenic potential of dental pulp stem cells from deciduous teeth (DPSC) in association with a Ricinus bone compound (RBC) in a model of bone defect. The influence of the biomaterial RBC on the proliferation and osteogenic differentiation of DPSC was assessed in vitro by MTT metabolism and alizarin red staining, respectively. The morphologic analysis was performed using the optic and scanning electron (SEM) microscopies. For the in vivo study, 54 Wistar rats submitted to calvarial defects were filled with RBC or RBC+DPSC. A control group had the defects filled only with blood clots. Analyses were performed 15, 30 and 60 days after treatment using digital radiography, optical microscopy, SEM and chemical analysis by electron dispersive spectroscopy. The Ricinus bone compound (RBC) did not inhibit the osteogenic differentiation in vitro. No spontaneous regeneration was observed in the control group. The area of the calvarial defect of the RBC+DPSC group showed greater radiopacity on day 15. The RBC presented no reabsorption, was biocompatible and showed osteointegration, working as a mechanical filling. Only sparse ossification areas were found and those were larger and more developed on the RBC+DPSC group when compared to animals treated only with RBC. RBC in association with DPSC is a promising combination for applications in bone regeneration. \u0000 ","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114297977","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}
Maria Teresa A.P. Menescal, Edna dos Santos Almeida, Emerson Andrade Sales
The present work aims to evaluate cyanobacteria isolated from a lagoon located in Salvador. The species have a potential for toxin production and growth in a controlled environment suggesting the potential of its biomass for biotechnological application. The species were identified and analyzed for the presence of cyanotoxin-producing genes using molecular methods. The growth kinetics of the microorganism was carried out in the laboratory and the results (productivity of 0.5 g/L) showed that this species can be cultivated under controlled conditions. The sequencing indicated similarity with a Brasilonema sp and the PCR products for the detection of cyanotoxins were negative, which makes it possible to use as food or bioactive compound sources.
{"title":"Identification and Study of a Promising Cyanobacteria Species for Biotechnological Applications","authors":"Maria Teresa A.P. Menescal, Edna dos Santos Almeida, Emerson Andrade Sales","doi":"10.34178/jbth.v3i4.138","DOIUrl":"https://doi.org/10.34178/jbth.v3i4.138","url":null,"abstract":"The present work aims to evaluate cyanobacteria isolated from a lagoon located in Salvador. The species have a potential for toxin production and growth in a controlled environment suggesting the potential of its biomass for biotechnological application. The species were identified and analyzed for the presence of cyanotoxin-producing genes using molecular methods. The growth kinetics of the microorganism was carried out in the laboratory and the results (productivity of 0.5 g/L) showed that this species can be cultivated under controlled conditions. The sequencing indicated similarity with a Brasilonema sp and the PCR products for the detection of cyanotoxins were negative, which makes it possible to use as food or bioactive compound sources. \u0000 ","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117332501","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}
Fiber-reinforced composites represent 75% of the application of these materials in several industrial segments. It has the purpose of improving technical characteristics and reducing environmental impact through the use of sustainable raw materials such as natural fibers and other fibers from industrial waste. In this sense, the objective of this work was to study and compare the mechanical properties of polyester composites (PL) reinforced with natural sisal fiber and residues of polyethylene terephthalate (PET) synthetic fibers. Initially, we evaluated the moisture and morphology of the fibers. The composites with PL matrix were obtained and the fiber concentration varied by 1%, 3%, and 5% by weight. In the composites, the mechanical properties under flexion and impact resistance were evaluated. We concluded that the level of reinforcement with sisal fibers did not significantly affect the mechanical properties. However, the PET fiber provided significant improvements in the properties of the composite. Thus, the composites reinforced with PET fiber residue have advantages in the development of new material with sustainable characteristics.
{"title":"Properties of Fibrous Composites with Polyester: A Comparative Analysis Between Sisal Fiber and Pet","authors":"Matheus Vinicius Falcão Moreira, Lorrane Carneiro Laranjeira Silva, Joyce Batista Azevedo, Pollyana da Silva Melo Cardoso, Josiane Dantas Viana Barbosa, Daniel Vianna Goes Araujo","doi":"10.34178/jbth.v3i4.139","DOIUrl":"https://doi.org/10.34178/jbth.v3i4.139","url":null,"abstract":"Fiber-reinforced composites represent 75% of the application of these materials in several industrial segments. It has the purpose of improving technical characteristics and reducing environmental impact through the use of sustainable raw materials such as natural fibers and other fibers from industrial waste. In this sense, the objective of this work was to study and compare the mechanical properties of polyester composites (PL) reinforced with natural sisal fiber and residues of polyethylene terephthalate (PET) synthetic fibers. Initially, we evaluated the moisture and morphology of the fibers. The composites with PL matrix were obtained and the fiber concentration varied by 1%, 3%, and 5% by weight. In the composites, the mechanical properties under flexion and impact resistance were evaluated. We concluded that the level of reinforcement with sisal fibers did not significantly affect the mechanical properties. However, the PET fiber provided significant improvements in the properties of the composite. Thus, the composites reinforced with PET fiber residue have advantages in the development of new material with sustainable characteristics. \u0000 ","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125714095","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}
Yan Valdez Santos Rodrigues, Edna dos Santos Almeida, Érika Durão Vieira
The use of Spirulina (Arthospira sp) as a food source has stood out for being a potential source of proteins, fatty acids, vitamins, and others. However, the cultivation medium for its production is relatively expensive. Then, an alternative culture medium is necessary for reducing costs. So, hydroponics drainage effluent, a solution rich in nutrients, represents an alternative source of substrate for microorganism cultivation. Thus, this work aimed to characterize the biomass of Arthospira sp grown in an alternative culture medium based on hydroponic effluent through a systematic review. We noted a trend to reduce biomass growth and bioactive compounds due to an excess of iron and copper in the effluent. The study concluded that it needs to supplement the residual medium with a synthetic medium for its use to obtain biomass for commercial utilization.
{"title":"Characterization of Arthrospira sp (Spirulina) Biomass Growth in Hydroponic Waste Solution: A Review","authors":"Yan Valdez Santos Rodrigues, Edna dos Santos Almeida, Érika Durão Vieira","doi":"10.34178/jbth.v3i4.142","DOIUrl":"https://doi.org/10.34178/jbth.v3i4.142","url":null,"abstract":"The use of Spirulina (Arthospira sp) as a food source has stood out for being a potential source of proteins, fatty acids, vitamins, and others. However, the cultivation medium for its production is relatively expensive. Then, an alternative culture medium is necessary for reducing costs. So, hydroponics drainage effluent, a solution rich in nutrients, represents an alternative source of substrate for microorganism cultivation. Thus, this work aimed to characterize the biomass of Arthospira sp grown in an alternative culture medium based on hydroponic effluent through a systematic review. We noted a trend to reduce biomass growth and bioactive compounds due to an excess of iron and copper in the effluent. The study concluded that it needs to supplement the residual medium with a synthetic medium for its use to obtain biomass for commercial utilization. \u0000 ","PeriodicalId":103143,"journal":{"name":"JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121946925","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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