Kholik Kholik, Rista Ranggalan Putri, Adek Livia YunitaNingrum, Erlina Septiyani, F. J. I. C. Situmorang, Mashur, C. D. Atma
Anthelmintic resistance (AR) is increasing worldwide as a consequence of the over usage of anthelmintic. Fecal Egg Count Reduction Test (FECRT) is one of the methods to measure of anthelmintic resistance of gastrointestinal helminth. The objective of this paper is to know gastrointestinal helminth resistance using Fecal Egg Count Reduction Test. A community trial was carried out in North Lombok during Mei 2019. Eighteen (18) Bali cattle were used in this research after analyzed by eggs per gram feces (EPG) to know the value of eggs of helminth in Bali cattle before anthelmintic were given, as basic data. They were divided into 3 groups: group one was not given anthelmintic, group two was given Ivermectin (0.2 mg/kg BW), and group three was given Albendazole (15 mg/kg BW). The feces of 18 Bali cattle examined by EPG to know of Fecal Egg Reduction were collected after 14 days of giving Ivermectin and Albendazole. The data of Fecal Egg Reduction between Ivermectin and Albendazole groups were analyzed by T-test. The result showed that the group given Ivermectin can be reduced 91.66±83.20 % eggs per gram feces and the group was given Albendazole can be reduced 83.81±74.51% eggs per gram feces by FECRT. The T-test showed no significant difference between the group that was given Ivermectin and albendazole group (p>0.05). The eggs per gram feces of the group were not given anthelmintic increased until 41.66±208.366 eggs per gram feces. Ivermectin and Albendazole can give for gastrointestinal helminthiasis because they can reduce eggs per gram feces but anthelmintic resistance of Ivermectin and Albendazole was indicated because the anthelmintic has to reduce fecal egg count by at least 95 %.Anthelmintic resistance (AR) is increasing worldwide as a consequence of the over usage of anthelmintic. Fecal Egg Count Reduction Test (FECRT) is one of the methods to measure of anthelmintic resistance of gastrointestinal helminth. The objective of this paper is to know gastrointestinal helminth resistance using Fecal Egg Count Reduction Test. A community trial was carried out in North Lombok during Mei 2019. Eighteen (18) Bali cattle were used in this research after analyzed by eggs per gram feces (EPG) to know the value of eggs of helminth in Bali cattle before anthelmintic were given, as basic data. They were divided into 3 groups: group one was not given anthelmintic, group two was given Ivermectin (0.2 mg/kg BW), and group three was given Albendazole (15 mg/kg BW). The feces of 18 Bali cattle examined by EPG to know of Fecal Egg Reduction were collected after 14 days of giving Ivermectin and Albendazole. The data of Fecal Egg Reduction between Ivermectin and Albendazole groups were analyzed by T-te...
{"title":"Fecal egg count reduction test (FECRT) for measurement of gastrointestinal helminth resistance to anthelmintic of Bali cattle in North Lombok","authors":"Kholik Kholik, Rista Ranggalan Putri, Adek Livia YunitaNingrum, Erlina Septiyani, F. J. I. C. Situmorang, Mashur, C. D. Atma","doi":"10.1063/1.5141304","DOIUrl":"https://doi.org/10.1063/1.5141304","url":null,"abstract":"Anthelmintic resistance (AR) is increasing worldwide as a consequence of the over usage of anthelmintic. Fecal Egg Count Reduction Test (FECRT) is one of the methods to measure of anthelmintic resistance of gastrointestinal helminth. The objective of this paper is to know gastrointestinal helminth resistance using Fecal Egg Count Reduction Test. A community trial was carried out in North Lombok during Mei 2019. Eighteen (18) Bali cattle were used in this research after analyzed by eggs per gram feces (EPG) to know the value of eggs of helminth in Bali cattle before anthelmintic were given, as basic data. They were divided into 3 groups: group one was not given anthelmintic, group two was given Ivermectin (0.2 mg/kg BW), and group three was given Albendazole (15 mg/kg BW). The feces of 18 Bali cattle examined by EPG to know of Fecal Egg Reduction were collected after 14 days of giving Ivermectin and Albendazole. The data of Fecal Egg Reduction between Ivermectin and Albendazole groups were analyzed by T-test. The result showed that the group given Ivermectin can be reduced 91.66±83.20 % eggs per gram feces and the group was given Albendazole can be reduced 83.81±74.51% eggs per gram feces by FECRT. The T-test showed no significant difference between the group that was given Ivermectin and albendazole group (p>0.05). The eggs per gram feces of the group were not given anthelmintic increased until 41.66±208.366 eggs per gram feces. Ivermectin and Albendazole can give for gastrointestinal helminthiasis because they can reduce eggs per gram feces but anthelmintic resistance of Ivermectin and Albendazole was indicated because the anthelmintic has to reduce fecal egg count by at least 95 %.Anthelmintic resistance (AR) is increasing worldwide as a consequence of the over usage of anthelmintic. Fecal Egg Count Reduction Test (FECRT) is one of the methods to measure of anthelmintic resistance of gastrointestinal helminth. The objective of this paper is to know gastrointestinal helminth resistance using Fecal Egg Count Reduction Test. A community trial was carried out in North Lombok during Mei 2019. Eighteen (18) Bali cattle were used in this research after analyzed by eggs per gram feces (EPG) to know the value of eggs of helminth in Bali cattle before anthelmintic were given, as basic data. They were divided into 3 groups: group one was not given anthelmintic, group two was given Ivermectin (0.2 mg/kg BW), and group three was given Albendazole (15 mg/kg BW). The feces of 18 Bali cattle examined by EPG to know of Fecal Egg Reduction were collected after 14 days of giving Ivermectin and Albendazole. The data of Fecal Egg Reduction between Ivermectin and Albendazole groups were analyzed by T-te...","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91160214","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}
Vladimír Hauser, A. Pavlik, Mária Loulová, O. Potapenko
The wheel profile of a rail vehicle is one of the key elements on which its ride dynamics depend. Even small changes in the wheel tread geometry resulting from its gradual wearing can significantly affect not only passenger comfort, but also result in a change in vehicle behavior when running on a straight track, and when running through a track curve, there is a significant change in the forces acting in the wheel-rail contact. The aim of the authors is to clarify the causes of wear by using simulation analysis of a vehicle ride and subsequent processing of the results in their own software, allowing to plot various parameters of the wheel-rail contact in relation to their location on the wheel profile. The value of the presented parameters is also interpreted in relation to the radius of the curve of the track where they occurred. The paper describes software designed by the authors as a tool for research of causes of wear, presents used algorithms and mathematical-analytical apparatus.The wheel profile of a rail vehicle is one of the key elements on which its ride dynamics depend. Even small changes in the wheel tread geometry resulting from its gradual wearing can significantly affect not only passenger comfort, but also result in a change in vehicle behavior when running on a straight track, and when running through a track curve, there is a significant change in the forces acting in the wheel-rail contact. The aim of the authors is to clarify the causes of wear by using simulation analysis of a vehicle ride and subsequent processing of the results in their own software, allowing to plot various parameters of the wheel-rail contact in relation to their location on the wheel profile. The value of the presented parameters is also interpreted in relation to the radius of the curve of the track where they occurred. The paper describes software designed by the authors as a tool for research of causes of wear, presents used algorithms and mathematical-analytical apparatus.
{"title":"The tool for wheel profile wear research from the track composition point of view","authors":"Vladimír Hauser, A. Pavlik, Mária Loulová, O. Potapenko","doi":"10.1063/1.5140865","DOIUrl":"https://doi.org/10.1063/1.5140865","url":null,"abstract":"The wheel profile of a rail vehicle is one of the key elements on which its ride dynamics depend. Even small changes in the wheel tread geometry resulting from its gradual wearing can significantly affect not only passenger comfort, but also result in a change in vehicle behavior when running on a straight track, and when running through a track curve, there is a significant change in the forces acting in the wheel-rail contact. The aim of the authors is to clarify the causes of wear by using simulation analysis of a vehicle ride and subsequent processing of the results in their own software, allowing to plot various parameters of the wheel-rail contact in relation to their location on the wheel profile. The value of the presented parameters is also interpreted in relation to the radius of the curve of the track where they occurred. The paper describes software designed by the authors as a tool for research of causes of wear, presents used algorithms and mathematical-analytical apparatus.The wheel profile of a rail vehicle is one of the key elements on which its ride dynamics depend. Even small changes in the wheel tread geometry resulting from its gradual wearing can significantly affect not only passenger comfort, but also result in a change in vehicle behavior when running on a straight track, and when running through a track curve, there is a significant change in the forces acting in the wheel-rail contact. The aim of the authors is to clarify the causes of wear by using simulation analysis of a vehicle ride and subsequent processing of the results in their own software, allowing to plot various parameters of the wheel-rail contact in relation to their location on the wheel profile. The value of the presented parameters is also interpreted in relation to the radius of the curve of the track where they occurred. The paper describes software designed by the authors as a tool for research of causes of wear, presents used algorithms and mathematical-analytical apparatus.","PeriodicalId":20577,"journal":{"name":"PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87459317","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}
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}
{"title":"Scientific Committee: XVII. International Scientific Conference: Dynamics of Rigid and Deformable Bodies 2019","authors":"SkocilasovaBlanka, LenhardRichard, SoukupJosef","doi":"10.1063/1.5140861","DOIUrl":"https://doi.org/10.1063/1.5140861","url":null,"abstract":"","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":"89307612","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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