The coir of young coconut is the largest by product of coconut. Young coconut coir has no important industrial uses and until now has been incinerated or dumped without control. This is because the utilization of young coconut coir is not easy as the old one. Tannin has pharmacological activities including anti-inflammatory, antioxidant, anti-tumor This study aims to determine tannin in young coconut coir (Cocos nucifera L.) using a complementary analytical technique, Fourier Transform Infra-RedFTIR) and Ultraviolet-Visible (UV-Vis) spectroscopy. Sample of young coconut coir was obtained from the waste of bargainer at the local market. Sample was maserated using ethanol as the solvent and then was evaporated to get concentrated extract. The FTIR and UV-Vis spectra showed that the sample was indicated to contain tannin. The presence of tannin was indicated by appearance of peak at 283 nm and 326 nm in UV-Vis spectra and in the region between 1610-1445 cm-1 by FTIR. This research is an early stage in the characterization of tannin compounds from young coconut coir extract. It is expected that waste have economic value in the future.
{"title":"Tannin determination in young coconut coir (Cocos nucifera L.) by FTIR and UV-Vis spectroscopy","authors":"Yelfira Sari","doi":"10.54076/jumpa.v3i1.271","DOIUrl":"https://doi.org/10.54076/jumpa.v3i1.271","url":null,"abstract":"The coir of young coconut is the largest by product of coconut. Young coconut coir has no important industrial uses and until now has been incinerated or dumped without control. This is because the utilization of young coconut coir is not easy as the old one. Tannin has pharmacological activities including anti-inflammatory, antioxidant, anti-tumor This study aims to determine tannin in young coconut coir (Cocos nucifera L.) using a complementary analytical technique, Fourier Transform Infra-RedFTIR) and Ultraviolet-Visible (UV-Vis) spectroscopy. Sample of young coconut coir was obtained from the waste of bargainer at the local market. Sample was maserated using ethanol as the solvent and then was evaporated to get concentrated extract. The FTIR and UV-Vis spectra showed that the sample was indicated to contain tannin. The presence of tannin was indicated by appearance of peak at 283 nm and 326 nm in UV-Vis spectra and in the region between 1610-1445 cm-1 by FTIR. This research is an early stage in the characterization of tannin compounds from young coconut coir extract. It is expected that waste have economic value in the future.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90186022","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}
Isolation and identification of secondary metabolite compound in acetone extract from fruit terong belanda (Cyphomandra betacea) have been carried out. The aim of this research is to isolate and identify the secondary metabolite compound in acetone extract from fruit terong belanda (Cyphomandra betacea) which obtain from Enrekang. The compound was obtained by isolation process that consist of several stages, including extraction, fractination, purification and identification. Extraction was carried out using maceration with acetone. The identification was coment by is color test, melt point, solubility and TLC. Base of identification are obtained compound in white powder with melting point 130-131 oC, and positively to the reagent Dragendorf and Wagner gives a brown precipitate that indicated as a alkaloid group. This result is supported by solubility compounds.
{"title":"Isolation and Identification of Secondary Metabolic Compounds Acetone Extract from Dutch Eggplant (Cyphomandra betacea)","authors":"M. Mawardi","doi":"10.54076/jumpa.v2i2.230","DOIUrl":"https://doi.org/10.54076/jumpa.v2i2.230","url":null,"abstract":"Isolation and identification of secondary metabolite compound in acetone extract from fruit terong belanda (Cyphomandra betacea) have been carried out. The aim of this research is to isolate and identify the secondary metabolite compound in acetone extract from fruit terong belanda (Cyphomandra betacea) which obtain from Enrekang. The compound was obtained by isolation process that consist of several stages, including extraction, fractination, purification and identification. Extraction was carried out using maceration with acetone. The identification was coment by is color test, melt point, solubility and TLC. Base of identification are obtained compound in white powder with melting point 130-131 oC, and positively to the reagent Dragendorf and Wagner gives a brown precipitate that indicated as a alkaloid group. This result is supported by solubility compounds.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79489502","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 type of research is quantitative research which is concerned with determining how much certain substances are contained in a sample. The formulation of the problem in this study is how much protein and fat levels are contained in the green kopek green eggplant kopeksangegg plant. The study was conducted to determine how many grams of protein and fat content in purple kopek eggplant and green kopek eggplant samples. With a spectrophotometric method (Lowry) for the determination of protein content and one method of hot extraction is the soxhletation method for the determination of fat content. The results showed that the protein content in 50 g of eggplant purple kopek was 0.0323 g and 50 g eggplant green kopek was 0.0375 g. The fat content in 10 grams of eggplant purple kopek is 0.1794% and 10 grams of eggplant green kopek is 0.1612%. Based on the results of the research that has been carried out, it was found that the protein content of eggplant kopek did not meet the DKBM standard, namely 1.4-2 g in a sample of 100 g. While the standard fat content obtained by DKBM is 1.1 g in a sample of 100 g.
{"title":"Determination of Protein Content by Spectrophotometric Method and Fat Content by Soxhletation Method on Purple Kopek Eggplant and Green Kopek Eggplant","authors":"Kartika Hasan","doi":"10.54076/jumpa.v2i2.229","DOIUrl":"https://doi.org/10.54076/jumpa.v2i2.229","url":null,"abstract":"The type of research is quantitative research which is concerned with determining how much certain substances are contained in a sample. The formulation of the problem in this study is how much protein and fat levels are contained in the green kopek green eggplant kopeksangegg plant. The study was conducted to determine how many grams of protein and fat content in purple kopek eggplant and green kopek eggplant samples. With a spectrophotometric method (Lowry) for the determination of protein content and one method of hot extraction is the soxhletation method for the determination of fat content. The results showed that the protein content in 50 g of eggplant purple kopek was 0.0323 g and 50 g eggplant green kopek was 0.0375 g. The fat content in 10 grams of eggplant purple kopek is 0.1794% and 10 grams of eggplant green kopek is 0.1612%. Based on the results of the research that has been carried out, it was found that the protein content of eggplant kopek did not meet the DKBM standard, namely 1.4-2 g in a sample of 100 g. While the standard fat content obtained by DKBM is 1.1 g in a sample of 100 g.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78245825","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 aims of this experimental research are to determine the optimum of contact time, influence of stirring against absorbing power, and adsorption capacity of activated carbon corn cob to pigmen Rhodamin B. This research was done to vary contact time and first concentration of pigmen Rhodamin B. The result of this research showed that optimum of time contact needed activated carbon corn cob to adsorption pigmen Rhodamin B 45 minutes, rapid process way would be more biggest with more big the contact time until reach optimum time and adsorption capacity of activated carbon corn cob against pigmen Rhodamin B were 2,2255 mg/g. The value was more biggest than the adsorption capacity of activated carbon waste of sugar cane against pigment Rhodamin B were 2,078 mg/g. Isoterm system of the activated carbon corn cob to pigmen Rhodamin B followed isoterm system Langmuir with adsorption capacity were 2,2255 mg/g. Isoterm system Freundlich value of adsorption capacity were 1,481 mg/g.
{"title":"Corncob Activated Carbon Adsorption Capacity (Zea mays L.) Against Rhodamine B. Dyes","authors":"Sudarmi Sudarmi","doi":"10.54076/jumpa.v2i2.231","DOIUrl":"https://doi.org/10.54076/jumpa.v2i2.231","url":null,"abstract":"The aims of this experimental research are to determine the optimum of contact time, influence of stirring against absorbing power, and adsorption capacity of activated carbon corn cob to pigmen Rhodamin B. This research was done to vary contact time and first concentration of pigmen Rhodamin B. The result of this research showed that optimum of time contact needed activated carbon corn cob to adsorption pigmen Rhodamin B 45 minutes, rapid process way would be more biggest with more big the contact time until reach optimum time and adsorption capacity of activated carbon corn cob against pigmen Rhodamin B were 2,2255 mg/g. The value was more biggest than the adsorption capacity of activated carbon waste of sugar cane against pigment Rhodamin B were 2,078 mg/g. Isoterm system of the activated carbon corn cob to pigmen Rhodamin B followed isoterm system Langmuir with adsorption capacity were 2,2255 mg/g. Isoterm system Freundlich value of adsorption capacity were 1,481 mg/g.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82419107","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}
Research has been carried out on the design of a light intensity regulator with a remote control on incandescent lamps. This study aims to design and manufacture a light intensity controller that can be controlled remotely. This research uses Infrared Light Emitting Diode (LED) as transmitter and phototransistor module as receiver. The results of this study indicate that the tool that has been successfully designed and made can function up to a distance of 300 cm.
{"title":"Design of a Light Intensity Regulator with Remote Control for Incandescent Lamps","authors":"A. Yani","doi":"10.54076/jumpa.v2i2.227","DOIUrl":"https://doi.org/10.54076/jumpa.v2i2.227","url":null,"abstract":"Research has been carried out on the design of a light intensity regulator with a remote control on incandescent lamps. This study aims to design and manufacture a light intensity controller that can be controlled remotely. This research uses Infrared Light Emitting Diode (LED) as transmitter and phototransistor module as receiver. The results of this study indicate that the tool that has been successfully designed and made can function up to a distance of 300 cm.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72947750","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}
One of the uses of rice washing water is to make nata de rice or bacterial cellulose. This study was conducted to determine the effect of glucose mass and fermentation time on the viscosity of nata de rice. The study was conducted using 1000 ml of water to wash rice then added 10 ml of acetic acid, glucose with 50 grams, 75 grams and 100 grams, 5 grams urea, Acebacter xylinum starter as much as 100 ml then fermented. up to 14 days. Parameters analyzed were glucose mass and time of optimum fermentation conditions on the thickness of nata de rice. Thickness measurements were carried out using shear anchors. The results showed that the optimum thickness of nata was the addition of 100 grams of glucose with an optimum thickness of 17 mm and the optimum time was on the 14th day during fermentation.
{"title":"Design of a Light Intensity Regulator with Remote Control for Incandescent Lamps","authors":"Januar Januar","doi":"10.54076/jumpa.v2i2.228","DOIUrl":"https://doi.org/10.54076/jumpa.v2i2.228","url":null,"abstract":"One of the uses of rice washing water is to make nata de rice or bacterial cellulose. This study was conducted to determine the effect of glucose mass and fermentation time on the viscosity of nata de rice. The study was conducted using 1000 ml of water to wash rice then added 10 ml of acetic acid, glucose with 50 grams, 75 grams and 100 grams, 5 grams urea, Acebacter xylinum starter as much as 100 ml then fermented. up to 14 days. Parameters analyzed were glucose mass and time of optimum fermentation conditions on the thickness of nata de rice. Thickness measurements were carried out using shear anchors. The results showed that the optimum thickness of nata was the addition of 100 grams of glucose with an optimum thickness of 17 mm and the optimum time was on the 14th day during fermentation.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85175325","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 city of Medan as the capital city of North Sumatra Province has made significant progress. This coTechnology and Computer Sciencemmercial buildings in several places, one of which was in the Jalan Iskandar Muda corridor. In general, these buildings are spread along road corridors that function as commercial areas in the city of Medan. Presence signage on Jalan Iskandar Muda, Medan City, it turns out that they tend to maximize the economic potential of the region, resulting in a shift in the function of urban space into a space for advertising media expression. As an effort to create city comfort that supports visual aesthetics and does not interfere with pedestrian comfort, this research produces a design concept in the form of placement signage according to the designated zone, namely in the pedestrian zone, the design of the height proportion signage to the width of the pedestrian path using a human scale approach, panel or plane dimension design signage by using the concept golden section, as well as setting the point of placement or spread signage using the concept of rhythm and local regulations that have been established with the aim of limiting the number of signage on the pedestrian path.
作为北苏门答腊省首府的棉兰市取得了重大进展。这个联合技术和计算机科学的商业建筑在几个地方，其中一个在Jalan Iskandar Muda走廊。一般来说，这些建筑分布在棉兰市作为商业区的道路走廊上。在棉兰市Jalan Iskandar Muda的存在标牌，事实证明，它们倾向于最大化该地区的经济潜力，导致城市空间功能转变为广告媒体表达空间。为了创造既支持视觉美学又不影响行人舒适度的城市舒适度，本研究提出了按指定区域放置标识的设计理念，即在步行区，采用人性化尺度的方法设计标识的高度与行人路径的宽度比例，采用黄金分割的概念设计面板或平面尺寸的标识;以及使用节奏和当地法规的概念来设置放置或传播标志的点，这些法规的目的是限制人行道上的标志数量。
{"title":"The Signage Placement Directions On The Pedestarian Path, Iskandar Muda Road, Medan City","authors":"Hibnul Walid, Indra Kesuma Hadi, Muhammad Amin, Surta Ria Nurliana Panjaitan, Rizky Franchitika","doi":"10.54076/jumpa.v2i1.224","DOIUrl":"https://doi.org/10.54076/jumpa.v2i1.224","url":null,"abstract":"The city of Medan as the capital city of North Sumatra Province has made significant progress. This coTechnology and Computer Sciencemmercial buildings in several places, one of which was in the Jalan Iskandar Muda corridor. In general, these buildings are spread along road corridors that function as commercial areas in the city of Medan. Presence signage on Jalan Iskandar Muda, Medan City, it turns out that they tend to maximize the economic potential of the region, resulting in a shift in the function of urban space into a space for advertising media expression. As an effort to create city comfort that supports visual aesthetics and does not interfere with pedestrian comfort, this research produces a design concept in the form of placement signage according to the designated zone, namely in the pedestrian zone, the design of the height proportion signage to the width of the pedestrian path using a human scale approach, panel or plane dimension design signage by using the concept golden section, as well as setting the point of placement or spread signage using the concept of rhythm and local regulations that have been established with the aim of limiting the number of signage on the pedestrian path.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84020631","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}
Metal Matrix Composites is two or more combination material with aluminum metal as matrix and devolved to fix metal act, strength, high temperature stability and hardness. Metal matrix composites have been developed so many because it has low density, corrosion proof, cheap and easy fabrication. Powder metallurgy technique is one of metal matrix composites fabrication process in solid state that is still developed because more economic, doesn't need difficult equipment. Aluminum that use in this research is Al alloy type 2124. Metal matrix composites fabrication process with powder metallurgy method using wet mixing with pure ethanol, cold compaction 300 MPa and inert gas atmospheric using Nitrogen gas (N2) at sintering process. Variation of sinter temperature that used is 450, 500, 550, and 600 oC with highly temperature average 5 oC/min and holding time for 1 hour and with speed flow Nitrogen gas (N2) 5 lt/min with pressure 1000 kgf/cm2. From research result can be concluded the mechanical properties and physical properties from metal matrix composites reinforced ceramics Al/SiCp increase with sinter temperature highly and with reinforcement particle addition SiC can increase mechanical properties and physical properties such as: hardness, wear resistance, coefficient of thermal expansion and corrosion resistance. From microstructure analysis, particle Sic distributed homogeneously at test specimen based on SEM analysis, and structure crystal analysis test result XRD show that dominant phase appear is Al, and Sic.
{"title":"Manufacturing of Ceramic Reinforced Metal Matrix Composites (Al/Sicp) And Their Characterization Through Powder Metallurgy Methods","authors":"Jepriandi Ginting","doi":"10.54076/jumpa.v2i1.209","DOIUrl":"https://doi.org/10.54076/jumpa.v2i1.209","url":null,"abstract":"Metal Matrix Composites is two or more combination material with aluminum metal as matrix and devolved to fix metal act, strength, high temperature stability and hardness. Metal matrix composites have been developed so many because it has low density, corrosion proof, cheap and easy fabrication. Powder metallurgy technique is one of metal matrix composites fabrication process in solid state that is still developed because more economic, doesn't need difficult equipment. Aluminum that use in this research is Al alloy type 2124. Metal matrix composites fabrication process with powder metallurgy method using wet mixing with pure ethanol, cold compaction 300 MPa and inert gas atmospheric using Nitrogen gas (N2) at sintering process. Variation of sinter temperature that used is 450, 500, 550, and 600 oC with highly temperature average 5 oC/min and holding time for 1 hour and with speed flow Nitrogen gas (N2) 5 lt/min with pressure 1000 kgf/cm2. From research result can be concluded the mechanical properties and physical properties from metal matrix composites reinforced ceramics Al/SiCp increase with sinter temperature highly and with reinforcement particle addition SiC can increase mechanical properties and physical properties such as: hardness, wear resistance, coefficient of thermal expansion and corrosion resistance. From microstructure analysis, particle Sic distributed homogeneously at test specimen based on SEM analysis, and structure crystal analysis test result XRD show that dominant phase appear is Al, and Sic.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82868695","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 wood powder is the waste from woods industry that further used as a mixture of plant soil. Scientist have used the powder of wood to make a particle board. This research, We used the ash of wood powder as an additive thing in the concrete mixture. The test is done for physics and mechanics of the concrete. The sample is made from the ingredients 1 cement : 2 sand : 3 pebble. In variation add to ash of the wood powder for cement is 5%, 10%, and 15%. The result of the researching show that the used of the ash of wood powder can build the impact of the concrete is 9.54% from normal concrete with the mixture of the ash of wood powder is 15%. Orther side for the physics, the water absorption and porosity with the ash of the wood powder is from 4.94% to 14.35% and from 4.16% to 14.89% higher than the normal concrete.
{"title":"The Effect of Addition of Ash from Burning Wood Powder to the Mechanical and Physical Properties of Concrete","authors":"Yusnitaerna Erna","doi":"10.54076/jumpa.v2i1.208","DOIUrl":"https://doi.org/10.54076/jumpa.v2i1.208","url":null,"abstract":"The wood powder is the waste from woods industry that further used as a mixture of plant soil. Scientist have used the powder of wood to make a particle board. This research, We used the ash of wood powder as an additive thing in the concrete mixture. The test is done for physics and mechanics of the concrete. The sample is made from the ingredients 1 cement : 2 sand : 3 pebble. In variation add to ash of the wood powder for cement is 5%, 10%, and 15%. The result of the researching show that the used of the ash of wood powder can build the impact of the concrete is 9.54% from normal concrete with the mixture of the ash of wood powder is 15%. Orther side for the physics, the water absorption and porosity with the ash of the wood powder is from 4.94% to 14.35% and from 4.16% to 14.89% higher than the normal concrete.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81975104","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}
Isolation and Nodulation Rhizobium sp. from Pueraria javanica (Benth.) Benth. and Study of Its Survival on Peat Soil and Compost of Oil Palm Empty Fruit Bunch was done from March to July 2008, in the Laboratory of Plant Biotechnology of Indonesian Oil Palm Research Institute (IOPRI) Marihat Research Station in Pematang Siantar, and Laboratory of Microbiology, Department of Biology, FMIPA USU. The sampel of nodules were taken from the roots of Pueraria javanica growing in the oil palm plantation at Sei Aek Pancur, Marihat, and University of North Sumatera. Ten isolates were isolated from the nodules and all of them could form root nodule after 8 weeks of inoculation in a nodulation trial. Another trial was conducted to study the survival of the Rhizobium in 2 different types of media: peat soil and compost of oil palm empty fruit bunch. It was found that all of the isolates could survive in both media during 4 weeks of observation. Statistically, the Rhizobium had a more stable viability in compost.
{"title":"ISOLATION AND NODULATION TEST OF Rhizobium sp. FROM Pueraria javanica (Benth.) Benth. AND LIABILITY TEST ON THE CARRIER MEDIUM OF PEAT AND COMPOST FROM PALM OIL PALM EMPTY FRUITS","authors":"Agnes Siska Situmorang","doi":"10.54076/jumpa.v2i1.205","DOIUrl":"https://doi.org/10.54076/jumpa.v2i1.205","url":null,"abstract":"Isolation and Nodulation Rhizobium sp. from Pueraria javanica (Benth.) Benth. and Study of Its Survival on Peat Soil and Compost of Oil Palm Empty Fruit Bunch was done from March to July 2008, in the Laboratory of Plant Biotechnology of Indonesian Oil Palm Research Institute (IOPRI) Marihat Research Station in Pematang Siantar, and Laboratory of Microbiology, Department of Biology, FMIPA USU. The sampel of nodules were taken from the roots of Pueraria javanica growing in the oil palm plantation at Sei Aek Pancur, Marihat, and University of North Sumatera. Ten isolates were isolated from the nodules and all of them could form root nodule after 8 weeks of inoculation in a nodulation trial. Another trial was conducted to study the survival of the Rhizobium in 2 different types of media: peat soil and compost of oil palm empty fruit bunch. It was found that all of the isolates could survive in both media during 4 weeks of observation. Statistically, the Rhizobium had a more stable viability in compost.","PeriodicalId":17729,"journal":{"name":"Jurnal Matematika Dan Ilmu Pengetahuan Alam LLDikti Wilayah 1 (JUMPA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74118100","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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