J. Soukup, J. Skočilas, B. Skocilasova, L. Rychlíková, Tereza Jarošová
The theory of the solution of the elastic rod impact on the thin plane elastic isotropic and orthotropic plate is presented. The various material and geometrical models of the plate are solved. The plate is supported without a restriction around its perimeter. The plate is loaded continuously or by the solitary force acting on the upper facial surface in the perpendicular direction to the midline surface of the unloaded plate. The plates are solved with or without corrections. The article is review of the present knowledge in the field of study.The theory of the solution of the elastic rod impact on the thin plane elastic isotropic and orthotropic plate is presented. The various material and geometrical models of the plate are solved. The plate is supported without a restriction around its perimeter. The plate is loaded continuously or by the solitary force acting on the upper facial surface in the perpendicular direction to the midline surface of the unloaded plate. The plates are solved with or without corrections. The article is review of the present knowledge in the field of study.
{"title":"Impact of elastic rod on thin elastic isotropic and orthotropic plate","authors":"J. Soukup, J. Skočilas, B. Skocilasova, L. Rychlíková, Tereza Jarošová","doi":"10.1063/1.5140874","DOIUrl":"https://doi.org/10.1063/1.5140874","url":null,"abstract":"The theory of the solution of the elastic rod impact on the thin plane elastic isotropic and orthotropic plate is presented. The various material and geometrical models of the plate are solved. The plate is supported without a restriction around its perimeter. The plate is loaded continuously or by the solitary force acting on the upper facial surface in the perpendicular direction to the midline surface of the unloaded plate. The plates are solved with or without corrections. The article is review of the present knowledge in the field of study.The theory of the solution of the elastic rod impact on the thin plane elastic isotropic and orthotropic plate is presented. The various material and geometrical models of the plate are solved. The plate is supported without a restriction around its perimeter. The plate is loaded continuously or by the solitary force acting on the upper facial surface in the perpendicular direction to the midline surface of the unloaded plate. The plates are solved with or without corrections. The article is review of the present knowledge in the field of study.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85036117","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}
Infrastructure development and land corversion have a direct negative impact on goat farmers in Samigaluh district. The land to get goat feed is getting narrower. Feed fermentation technology is a simple technique that can provide a solution to help the farmers in Samigaluh district. The purpose of this study is to evaluate the effect of fermented feed on weight gain of female Etawah (PE) goat breeds and to find out the optimum amount of fermented feed. Material of fermented complete feed: Calliandra, Mahogany, Cacao, Rambutan, Jackfruit, Cassava leaves and wheat bran (polar). All ingredients were fermented using comercial inoculum (EM4) with molasses and enough water. The treatments of fermented feed was carried out on 6 female PE goats aged 1-2 years and were divided into three groups for three types of treatment. The fermented complete feed contained the following nutrients: dry matter 39.52%, organic matter 90,42%, ash 8.99%, crude protein 11.44%, ether extract 3.6%, crude fiber 22.94% and nitrogen free extract 53,04%. The results showed that PE goats fed with forage 50% and fermented feed 50% tended to have a higher average body weight gain compared to 100% forage and 100% fermented feed, as much as 2.5 kg after 1 month trial. The treatment of 100% fermented feed does not seem to provide a significant weight gain, because the PE goats in this study are accustomed to being given forage from birth and never being given fermented feed thus affecting the amount of fermenteed feed consumption.Infrastructure development and land corversion have a direct negative impact on goat farmers in Samigaluh district. The land to get goat feed is getting narrower. Feed fermentation technology is a simple technique that can provide a solution to help the farmers in Samigaluh district. The purpose of this study is to evaluate the effect of fermented feed on weight gain of female Etawah (PE) goat breeds and to find out the optimum amount of fermented feed. Material of fermented complete feed: Calliandra, Mahogany, Cacao, Rambutan, Jackfruit, Cassava leaves and wheat bran (polar). All ingredients were fermented using comercial inoculum (EM4) with molasses and enough water. The treatments of fermented feed was carried out on 6 female PE goats aged 1-2 years and were divided into three groups for three types of treatment. The fermented complete feed contained the following nutrients: dry matter 39.52%, organic matter 90,42%, ash 8.99%, crude protein 11.44%, ether extract 3.6%, crude fiber 22.94% and nitrogen fr...
{"title":"The effect of fermented complete feed based on local feed resources on weight gain of female Peranakan Etawah goats in Samigaluh Subdistrict","authors":"S. Pakpahan, R. Restiani","doi":"10.1063/1.5141307","DOIUrl":"https://doi.org/10.1063/1.5141307","url":null,"abstract":"Infrastructure development and land corversion have a direct negative impact on goat farmers in Samigaluh district. The land to get goat feed is getting narrower. Feed fermentation technology is a simple technique that can provide a solution to help the farmers in Samigaluh district. The purpose of this study is to evaluate the effect of fermented feed on weight gain of female Etawah (PE) goat breeds and to find out the optimum amount of fermented feed. Material of fermented complete feed: Calliandra, Mahogany, Cacao, Rambutan, Jackfruit, Cassava leaves and wheat bran (polar). All ingredients were fermented using comercial inoculum (EM4) with molasses and enough water. The treatments of fermented feed was carried out on 6 female PE goats aged 1-2 years and were divided into three groups for three types of treatment. The fermented complete feed contained the following nutrients: dry matter 39.52%, organic matter 90,42%, ash 8.99%, crude protein 11.44%, ether extract 3.6%, crude fiber 22.94% and nitrogen free extract 53,04%. The results showed that PE goats fed with forage 50% and fermented feed 50% tended to have a higher average body weight gain compared to 100% forage and 100% fermented feed, as much as 2.5 kg after 1 month trial. The treatment of 100% fermented feed does not seem to provide a significant weight gain, because the PE goats in this study are accustomed to being given forage from birth and never being given fermented feed thus affecting the amount of fermenteed feed consumption.Infrastructure development and land corversion have a direct negative impact on goat farmers in Samigaluh district. The land to get goat feed is getting narrower. Feed fermentation technology is a simple technique that can provide a solution to help the farmers in Samigaluh district. The purpose of this study is to evaluate the effect of fermented feed on weight gain of female Etawah (PE) goat breeds and to find out the optimum amount of fermented feed. Material of fermented complete feed: Calliandra, Mahogany, Cacao, Rambutan, Jackfruit, Cassava leaves and wheat bran (polar). All ingredients were fermented using comercial inoculum (EM4) with molasses and enough water. The treatments of fermented feed was carried out on 6 female PE goats aged 1-2 years and were divided into three groups for three types of treatment. The fermented complete feed contained the following nutrients: dry matter 39.52%, organic matter 90,42%, ash 8.99%, crude protein 11.44%, ether extract 3.6%, crude fiber 22.94% and nitrogen fr...","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"122 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86438893","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}
Juraj Surový, J. Buday, Jozef Kovalíček, M. Franko, P. Martauz, M. Holubčík
Energy thermal plants for municipal solid waste produce polluted process gas (PG). This gas must be purifying to the required parameters for use in the following operations. Nowadays, a conventional wet scrubbing process is used to clean the resulting gases. This method largely uses natural resources (water, limestone) for its work, which is subsequently converted into newly formed waste. The aim of the new technologies will be to propose a technology that minimizes or eliminates the use of natural resources. Cold plasma cleaning seems to be the most promising method for the applied research.Energy thermal plants for municipal solid waste produce polluted process gas (PG). This gas must be purifying to the required parameters for use in the following operations. Nowadays, a conventional wet scrubbing process is used to clean the resulting gases. This method largely uses natural resources (water, limestone) for its work, which is subsequently converted into newly formed waste. The aim of the new technologies will be to propose a technology that minimizes or eliminates the use of natural resources. Cold plasma cleaning seems to be the most promising method for the applied research.
{"title":"Conventional and unconventional methods for purifying process gas generated by a gasification plant","authors":"Juraj Surový, J. Buday, Jozef Kovalíček, M. Franko, P. Martauz, M. Holubčík","doi":"10.1063/1.5140877","DOIUrl":"https://doi.org/10.1063/1.5140877","url":null,"abstract":"Energy thermal plants for municipal solid waste produce polluted process gas (PG). This gas must be purifying to the required parameters for use in the following operations. Nowadays, a conventional wet scrubbing process is used to clean the resulting gases. This method largely uses natural resources (water, limestone) for its work, which is subsequently converted into newly formed waste. The aim of the new technologies will be to propose a technology that minimizes or eliminates the use of natural resources. Cold plasma cleaning seems to be the most promising method for the applied research.Energy thermal plants for municipal solid waste produce polluted process gas (PG). This gas must be purifying to the required parameters for use in the following operations. Nowadays, a conventional wet scrubbing process is used to clean the resulting gases. This method largely uses natural resources (water, limestone) for its work, which is subsequently converted into newly formed waste. The aim of the new technologies will be to propose a technology that minimizes or eliminates the use of natural resources. Cold plasma cleaning seems to be the most promising method for the applied research.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72760002","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}
Feed is a very important factor in the golden triangle of animal husbandry business. Provision of adequate amounts of feed of a quality that meets the nutritional needs standards continuously, especially in the dry season is a problem that is often faced by beef cattle farmers on smallholder farming. For this reason, research has been carried out to determine the level of implementation of health management of beef cattle feeds on smallholders farming based on collective cages on the Lombok Island in December 2016 to March 2017 using survey methods. Data collection was carried out by interview using a list of questions arranged on an ordinal scale Likert. The number of respondents interviewed was 185farmers determined based on the number of collective cages on the Lombok Island. Data is processed and analyzed descriptively. The results showed that the level of health management implementation of beef cattle feeds on smallholders farming based on collective cages on Lombok Island was at an average score of 3.80. Thus, it can be concluded that the level of implementation of health management of beef cattle feed on smallholders farming on the Lombok Island with enough to good value.Feed is a very important factor in the golden triangle of animal husbandry business. Provision of adequate amounts of feed of a quality that meets the nutritional needs standards continuously, especially in the dry season is a problem that is often faced by beef cattle farmers on smallholder farming. For this reason, research has been carried out to determine the level of implementation of health management of beef cattle feeds on smallholders farming based on collective cages on the Lombok Island in December 2016 to March 2017 using survey methods. Data collection was carried out by interview using a list of questions arranged on an ordinal scale Likert. The number of respondents interviewed was 185farmers determined based on the number of collective cages on the Lombok Island. Data is processed and analyzed descriptively. The results showed that the level of health management implementation of beef cattle feeds on smallholders farming based on collective cages on Lombok Island was at an average score of...
{"title":"Implementation of health management of a beef cattle feed on the collective cage based smallholder farming in Lombok Island","authors":"Mashur, D. Oktaviana, Kholik Kholik, Unsunidhal","doi":"10.1063/1.5141305","DOIUrl":"https://doi.org/10.1063/1.5141305","url":null,"abstract":"Feed is a very important factor in the golden triangle of animal husbandry business. Provision of adequate amounts of feed of a quality that meets the nutritional needs standards continuously, especially in the dry season is a problem that is often faced by beef cattle farmers on smallholder farming. For this reason, research has been carried out to determine the level of implementation of health management of beef cattle feeds on smallholders farming based on collective cages on the Lombok Island in December 2016 to March 2017 using survey methods. Data collection was carried out by interview using a list of questions arranged on an ordinal scale Likert. The number of respondents interviewed was 185farmers determined based on the number of collective cages on the Lombok Island. Data is processed and analyzed descriptively. The results showed that the level of health management implementation of beef cattle feeds on smallholders farming based on collective cages on Lombok Island was at an average score of 3.80. Thus, it can be concluded that the level of implementation of health management of beef cattle feed on smallholders farming on the Lombok Island with enough to good value.Feed is a very important factor in the golden triangle of animal husbandry business. Provision of adequate amounts of feed of a quality that meets the nutritional needs standards continuously, especially in the dry season is a problem that is often faced by beef cattle farmers on smallholder farming. For this reason, research has been carried out to determine the level of implementation of health management of beef cattle feeds on smallholders farming based on collective cages on the Lombok Island in December 2016 to March 2017 using survey methods. Data collection was carried out by interview using a list of questions arranged on an ordinal scale Likert. The number of respondents interviewed was 185farmers determined based on the number of collective cages on the Lombok Island. Data is processed and analyzed descriptively. The results showed that the level of health management implementation of beef cattle feeds on smallholders farming based on collective cages on Lombok Island was at an average score of...","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75347611","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 article is devoted to the estimation of fatigue life of dynamically loaded components in the frequency domain using numerical methods of mechanics. The theoretical part presents basic knowledge about statistical processing of random signals, probability models and fatigue damage models. The practical part describes the process of determining S-N curves for smooth and notched test specimen and experimental and numerical analysis of fatigue life of the beam excited by random signal.The article is devoted to the estimation of fatigue life of dynamically loaded components in the frequency domain using numerical methods of mechanics. The theoretical part presents basic knowledge about statistical processing of random signals, probability models and fatigue damage models. The practical part describes the process of determining S-N curves for smooth and notched test specimen and experimental and numerical analysis of fatigue life of the beam excited by random signal.
{"title":"Fatigue analysis of a notched beam in frequency domain","authors":"K. Adam, Huňady Róbert","doi":"10.1063/1.5140868","DOIUrl":"https://doi.org/10.1063/1.5140868","url":null,"abstract":"The article is devoted to the estimation of fatigue life of dynamically loaded components in the frequency domain using numerical methods of mechanics. The theoretical part presents basic knowledge about statistical processing of random signals, probability models and fatigue damage models. The practical part describes the process of determining S-N curves for smooth and notched test specimen and experimental and numerical analysis of fatigue life of the beam excited by random signal.The article is devoted to the estimation of fatigue life of dynamically loaded components in the frequency domain using numerical methods of mechanics. The theoretical part presents basic knowledge about statistical processing of random signals, probability models and fatigue damage models. The practical part describes the process of determining S-N curves for smooth and notched test specimen and experimental and numerical analysis of fatigue life of the beam excited by random signal.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83054414","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 given paper is closely connected with the experimental modal analysis of natural frequencies of glass composite material. In relation to the tested glass composite, modal analysis was performed by help of special measuring device Pulse 12. The mentioned device was supplied by company Bruel & Kjear and the experimental measurements were carried out using damaged and undamaged plate sample which were prepared from the mentioned material hereinbefore. The investigated and analyzed plates of glass composite were made of six layers of glass fibres and they were arranged under the angle 90° (it is like fabric material made off glass fibres). The layers arranged in the given way were joined by epoxide resin MGS 285. The experimental measurement of natural frequencies of glass composite plates was carried out using the undamaged and damaged sample with proportions 78 mm x 78 mm while ten measurements were performed for each one specified site of the sample. In relation to the damaged plate sample, there was the circular cut-out with the diameter 6 mm in the centre. The finite element method in the software system ADINA v.8.6.2 was used for numerical analysis of the natural frequencies. According to the comparison of frequency response for undamaged and damaged sample, it can be concluded that the natural frequency of the damaged sample is less than the natural frequency of the undamaged sample. The measurement range for frequencies was up to 14 000 Hz.
本文与玻璃复合材料固有频率的实验模态分析密切相关。对所测玻璃复合材料进行了模态分析，采用脉冲12专用测量装置。上述装置由Bruel & Kjear公司提供，实验测量使用从上述材料制备的损坏和未损坏的板样进行。所研究和分析的玻璃复合材料板由6层玻璃纤维组成，并以90°角排列(类似于玻璃纤维制成的织物材料)。按给定方式排列的层由环氧树脂MGS 285连接。对玻璃复合板的固有频率进行了实验测量，使用比例为78 mm × 78 mm的未损坏和损坏样品，对样品的每个指定位置进行了10次测量。相对于损坏的板样，在中心有直径为6mm的圆形切口。采用ADINA v.8.6.2软件系统中的有限元法对固有频率进行数值分析。通过对未损坏和损坏样品的频率响应进行比较，可以得出损坏样品的固有频率小于未损坏样品的固有频率。频率的测量范围可达14000 Hz。
{"title":"Experimental and numerical modal analysis of the plate of glass composite","authors":"Ján Vavrojr., J. Vávro","doi":"10.1063/1.5140883","DOIUrl":"https://doi.org/10.1063/1.5140883","url":null,"abstract":"The given paper is closely connected with the experimental modal analysis of natural frequencies of glass composite material. In relation to the tested glass composite, modal analysis was performed by help of special measuring device Pulse 12. The mentioned device was supplied by company Bruel & Kjear and the experimental measurements were carried out using damaged and undamaged plate sample which were prepared from the mentioned material hereinbefore. The investigated and analyzed plates of glass composite were made of six layers of glass fibres and they were arranged under the angle 90° (it is like fabric material made off glass fibres). The layers arranged in the given way were joined by epoxide resin MGS 285. The experimental measurement of natural frequencies of glass composite plates was carried out using the undamaged and damaged sample with proportions 78 mm x 78 mm while ten measurements were performed for each one specified site of the sample. In relation to the damaged plate sample, there was the circular cut-out with the diameter 6 mm in the centre. The finite element method in the software system ADINA v.8.6.2 was used for numerical analysis of the natural frequencies. According to the comparison of frequency response for undamaged and damaged sample, it can be concluded that the natural frequency of the damaged sample is less than the natural frequency of the undamaged sample. The measurement range for frequencies was up to 14 000 Hz.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79770939","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}
Indonesia has a high biodiversitywith the potential to further advance. Natural Product Chemistry (NPC). NPC studied the type, distribution, and function of secondary metabolites contained in organisms. NPC learning in Indonesia generally has not been supported by laboratory activities. Laboratory activities are very suitable with NPC learning as part of science which essentially consists of processes and products. In this laboratory the student isolated artelastin from Artocarpus scortechinii. Natural product chemistry laboratory provided the students with the essential skills required to perform the extraction, fractionation, purification, and structural elucidation of artelastin. Many of the activities in this laboratory may be appropriate for other courses, such as organic chemistry and chemotaxonomy. This laboratory is useful for undergraduate students from many different disciplines.Indonesia has a high biodiversitywith the potential to further advance. Natural Product Chemistry (NPC). NPC studied the type, distribution, and function of secondary metabolites contained in organisms. NPC learning in Indonesia generally has not been supported by laboratory activities. Laboratory activities are very suitable with NPC learning as part of science which essentially consists of processes and products. In this laboratory the student isolated artelastin from Artocarpus scortechinii. Natural product chemistry laboratory provided the students with the essential skills required to perform the extraction, fractionation, purification, and structural elucidation of artelastin. Many of the activities in this laboratory may be appropriate for other courses, such as organic chemistry and chemotaxonomy. This laboratory is useful for undergraduate students from many different disciplines.
{"title":"Innovative natural product chemistry laboratory: Isolation of artelastin from Artocarpus scortechinii","authors":"A. Hakim, A. Jufri, Jamaluddin","doi":"10.1063/1.5141299","DOIUrl":"https://doi.org/10.1063/1.5141299","url":null,"abstract":"Indonesia has a high biodiversitywith the potential to further advance. Natural Product Chemistry (NPC). NPC studied the type, distribution, and function of secondary metabolites contained in organisms. NPC learning in Indonesia generally has not been supported by laboratory activities. Laboratory activities are very suitable with NPC learning as part of science which essentially consists of processes and products. In this laboratory the student isolated artelastin from Artocarpus scortechinii. Natural product chemistry laboratory provided the students with the essential skills required to perform the extraction, fractionation, purification, and structural elucidation of artelastin. Many of the activities in this laboratory may be appropriate for other courses, such as organic chemistry and chemotaxonomy. This laboratory is useful for undergraduate students from many different disciplines.Indonesia has a high biodiversitywith the potential to further advance. Natural Product Chemistry (NPC). NPC studied the type, distribution, and function of secondary metabolites contained in organisms. NPC learning in Indonesia generally has not been supported by laboratory activities. Laboratory activities are very suitable with NPC learning as part of science which essentially consists of processes and products. In this laboratory the student isolated artelastin from Artocarpus scortechinii. Natural product chemistry laboratory provided the students with the essential skills required to perform the extraction, fractionation, purification, and structural elucidation of artelastin. Many of the activities in this laboratory may be appropriate for other courses, such as organic chemistry and chemotaxonomy. This laboratory is useful for undergraduate students from many different disciplines.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88763755","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}
B. W. Hapsari, Andri Fadillah Martin, Evan Maulana, T. M. Ermayanti
Tacca leontopetaloides (L.) Kuntze, is a tuberous plant having high starch content similar to potatoes. This plant is now still under-utilized, grows limited only in some coastal area in Indonesia. In addition to their use as source of carbohydrate, secondary products of this plant are useful as anticancer. Genetic improvements of plants can be done by mutation with Gamma irradiation. In vitro shoots of Tacca have been developed after irradiation with Gamma ray. The aim of this research was to investigate growth, phytochemical properties and antioxidant activity of Tacca plantlets after Gamma irradiation treatment. Shoots were irradiated with 5, 20 and 30 Gy, then they were grown on MS medium containing 0.5 mg/l BAP or 0.5 mg/l kinetin. Growth was recorded every week from week-1 to week-8 of culture. After 8 weeks of culture, biomass production of plantlets, phytochemical properties as well as antioxidant activity were determined. The results showed that irradiated plants had slightly lower in growth compared to the control plants. However, IC50 of irradiated plants was lower than control plant. This indicated that irradiated plants had higher antioxidant activity. Addition of kinetin and BAP affected IC50 value. Irradiated Tacca has similar phytochemical properties of control plants based of alkaloid, flavonoid, steroid, saponin and tannin detection. This study showed new opportunities to produce a new superior type of T. leontopetaloides with higher antioxidant activity induced by Gamma irradiation mutation.
{"title":"Growth, phytochemical properties, and antioxidant activity of in vitro-gamma irradiated Tacca leontopetaloides (L.) Kuntze","authors":"B. W. Hapsari, Andri Fadillah Martin, Evan Maulana, T. M. Ermayanti","doi":"10.1063/1.5141300","DOIUrl":"https://doi.org/10.1063/1.5141300","url":null,"abstract":"Tacca leontopetaloides (L.) Kuntze, is a tuberous plant having high starch content similar to potatoes. This plant is now still under-utilized, grows limited only in some coastal area in Indonesia. In addition to their use as source of carbohydrate, secondary products of this plant are useful as anticancer. Genetic improvements of plants can be done by mutation with Gamma irradiation. In vitro shoots of Tacca have been developed after irradiation with Gamma ray. The aim of this research was to investigate growth, phytochemical properties and antioxidant activity of Tacca plantlets after Gamma irradiation treatment. Shoots were irradiated with 5, 20 and 30 Gy, then they were grown on MS medium containing 0.5 mg/l BAP or 0.5 mg/l kinetin. Growth was recorded every week from week-1 to week-8 of culture. After 8 weeks of culture, biomass production of plantlets, phytochemical properties as well as antioxidant activity were determined. The results showed that irradiated plants had slightly lower in growth compared to the control plants. However, IC50 of irradiated plants was lower than control plant. This indicated that irradiated plants had higher antioxidant activity. Addition of kinetin and BAP affected IC50 value. Irradiated Tacca has similar phytochemical properties of control plants based of alkaloid, flavonoid, steroid, saponin and tannin detection. This study showed new opportunities to produce a new superior type of T. leontopetaloides with higher antioxidant activity induced by Gamma irradiation mutation.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82797954","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}
{"title":"Investigation of mechanical properties of viscoelastic clusters of particles","authors":"A. Kolomiets, T. Jirout, J. Skočilas","doi":"10.1063/1.5140869","DOIUrl":"https://doi.org/10.1063/1.5140869","url":null,"abstract":"","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81319450","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}
Yuli Witono, R. Fauziah, Wiwik Siti Windrati, I. Taruna, Lailatul Azkiyah, R. P. Wijayanti
{"title":"Formulation of flavor enhancer from common barb (Rasbora jacobsoni) protein hydrolysate","authors":"Yuli Witono, R. Fauziah, Wiwik Siti Windrati, I. Taruna, Lailatul Azkiyah, R. P. Wijayanti","doi":"10.1063/1.5141311","DOIUrl":"https://doi.org/10.1063/1.5141311","url":null,"abstract":"","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85325194","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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