Tengkawang is a Shorea tree which includes in Dipterocarpacea family. This tree was the indigenous species of West Kalimantan, and mostly found in Kapuas Hulu Regency. Tengkawang seed which is the mascot of West Kalimantan Province was used to produce vegetable oil, chocolate, medicine, margarine, candles, and cosmetics. One of the villages which famous on Tengkawang products were Mensiau village which located in Batang Lupar sub district, Kapuas Hulu Regency. The objective of research was to inventory the diversity of Tengkawang tree in Mensiau village, Batang Lupar sub district, Kapuas Hulu Regency, and identification and made a description on morphology of Tengkawang tree. The research was conducted from May until August 2017. The methods used exploration on four lines in the forest of Mensiau village. The research found total individuals of Tengkawang tree was 1,689 trees. There were five types of Tengkawang, namely Shorea stenoptera, Shorea beccariana, Shorea pinanga, Shorea seminis and Shorea macrophylla. The local names of Tengkawang in Mensiau village were Engkabang Tungkul, Engkabang Rambai, Engkabang Trindak, and Engkabang Biasa. The total individuals of Shorea stenoptera was 408 tree, Shorea beccariana was 571 tree, Shorea pinanga was 370 tree, Shorea seminis was 186 tree and Shorea macrophylla was 154 tree. The efforts on conservation of Tengkawang tree in Mensiau village was needed because the forest in the village was suitable for the habitat of Tengkawang. Keywords : Kapuas Hulu, Shorea beccariana, Shorea macrophylla, Shorea pinanga, Shorea seminis, Shorea stenoptera, Tengkawang
{"title":"MORFOLOGI VEGETATIF JENIS POHON TENGKAWANG (Shorea spp) DI DESA MENSIAU KECAMATAN BATANG LUPAR KABUPATEN KAPUAS HULU","authors":"Riska, T. Manurung","doi":"10.26418/jt.v8i2.31077","DOIUrl":"https://doi.org/10.26418/jt.v8i2.31077","url":null,"abstract":"Tengkawang is a Shorea tree which includes in Dipterocarpacea family. This tree was the indigenous species of West Kalimantan, and mostly found in Kapuas Hulu Regency. Tengkawang seed which is the mascot of West Kalimantan Province was used to produce vegetable oil, chocolate, medicine, margarine, candles, and cosmetics. One of the villages which famous on Tengkawang products were Mensiau village which located in Batang Lupar sub district, Kapuas Hulu Regency. The objective of research was to inventory the diversity of Tengkawang tree in Mensiau village, Batang Lupar sub district, Kapuas Hulu Regency, and identification and made a description on morphology of Tengkawang tree. The research was conducted from May until August 2017. The methods used exploration on four lines in the forest of Mensiau village. The research found total individuals of Tengkawang tree was 1,689 trees. There were five types of Tengkawang, namely Shorea stenoptera, Shorea beccariana, Shorea pinanga, Shorea seminis and Shorea macrophylla. The local names of Tengkawang in Mensiau village were Engkabang Tungkul, Engkabang Rambai, Engkabang Trindak, and Engkabang Biasa. The total individuals of Shorea stenoptera was 408 tree, Shorea beccariana was 571 tree, Shorea pinanga was 370 tree, Shorea seminis was 186 tree and Shorea macrophylla was 154 tree. The efforts on conservation of Tengkawang tree in Mensiau village was needed because the forest in the village was suitable for the habitat of Tengkawang. Keywords : Kapuas Hulu, Shorea beccariana, Shorea macrophylla, Shorea pinanga, Shorea seminis, Shorea stenoptera, Tengkawang","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121807261","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 study aimed to analyze the quality of particle boards from bark fiber of sago (Metroxylon spp) with citric acid as natural adhesives based on physical properties, mechanical properties, and durability from subterranean termites Coptotermes curvignathus Holmgren. Particle boards are made with a size of 30 cm x 30 cm x 1 cm. The experimental factors used in the study included densities (0.7 gr/cm3 and 0.8 gr/cm3) and concentrations of citric acid adhesives (20% and 30%). The material then flow into hotpress with 1800C for 15 minutes and pressure at 25 kg/cm2. Testing of the physical and mechanical properties of particle boards refers to the JIS A 5908-2003 standard and durability against subterranean termites Coptotermes curvignathus Holmgren was conducted based on SNI 01. 7207-2006. The results showed that the densities factor had a significant effect on density, thickness swelling, MOE, MOR, internal bond, screw holding strength, and weight loss of the particle board against termites. Meanwhile concentration of citric acid adhesive significantly affected the density, moisture content, water absorption, thickness swelling, MOR, internal bond, and screw holding strength. The interaction between the densities factor and concentration of citric acid has a significant effect on thickness swelling and density. The physical and mechanical properties of particle boards which fulfill the JIS A 5908 2003 standard were density, moisture content, MOR, and screw holding strength. The durability of particleboard againts termites has a very strong level. The average values of termites mortality were 94% ~ 100%. The average of wood weight loss values were 9.61%~ 18.51%. The particle board made with a density 0.8 gr/cm3 and concentration of citric acid adhesive 30% achieved the highest values on physical properties, mechanical properties and durability to the termites Coptotermes curvignathus. Keywords : citric acid, Coptotermes curvignathus, Metroxylon spp, particle board, sago
以西米树皮纤维为原料，以柠檬酸为天然胶粘剂，对其物理性能、力学性能和耐久性能进行分析。刨花板的尺寸为30厘米× 30厘米× 1厘米。实验因素包括密度(0.7 g /cm3和0.8 g /cm3)和柠檬酸胶粘剂浓度(20%和30%)。然后将材料流入热压机，温度为1800C，压力为25kg /cm2，加热15分钟。刨花板的物理机械性能测试参照JIS A 5908-2003标准，抗地下白蚁(Coptotermes curvignathus Holmgren)耐久性测试基于SNI 01。7207 - 2006。结果表明，密度因子对刨花板的密度、厚度膨胀、MOE、MOR、内部粘结、螺杆持紧强度和抗白蚁失重均有显著影响。同时，柠檬酸胶粘剂的浓度对胶粘剂的密度、含水率、吸水率、厚度膨胀率、MOR、内粘接和螺杆持紧强度有显著影响。密度因子与柠檬酸浓度的交互作用对厚度膨胀和密度有显著影响。符合JIS A 5908 2003标准的刨花板的物理机械性能为密度、含水率、MOR和螺杆保持强度。刨花板抗白蚁的耐久性有很强的水平。白蚁死亡率平均值为94% ~ 100%。木材失重值平均为9.61%~ 18.51%。密度为0.8 g /cm3、柠檬酸胶粘剂浓度为30%的刨花板对白蚁的物理性能、机械性能和耐久性均达到最高值。关键词:柠檬酸，白蚁，白杨，刨花板，西米
{"title":"KUALITAS PAPAN PARTIKEL DARI KULIT BATANG SAGU (Metroxylon spp) DENGAN PEREKAT ALAMI ASAM SITRAT: SIFAT FISIK, SIFAT MEKANIK, DAN KEAWETAN TERHADAP RAYAP TANAH Coptotermes curvignathus Holmgren","authors":"D. Nugroho, Gusti eva Tavita, D. Setyawati","doi":"10.26418/jt.v8i2.31072","DOIUrl":"https://doi.org/10.26418/jt.v8i2.31072","url":null,"abstract":"The study aimed to analyze the quality of particle boards from bark fiber of sago (Metroxylon spp) with citric acid as natural adhesives based on physical properties, mechanical properties, and durability from subterranean termites Coptotermes curvignathus Holmgren. Particle boards are made with a size of 30 cm x 30 cm x 1 cm. The experimental factors used in the study included densities (0.7 gr/cm3 and 0.8 gr/cm3) and concentrations of citric acid adhesives (20% and 30%). The material then flow into hotpress with 1800C for 15 minutes and pressure at 25 kg/cm2. Testing of the physical and mechanical properties of particle boards refers to the JIS A 5908-2003 standard and durability against subterranean termites Coptotermes curvignathus Holmgren was conducted based on SNI 01. 7207-2006. The results showed that the densities factor had a significant effect on density, thickness swelling, MOE, MOR, internal bond, screw holding strength, and weight loss of the particle board against termites. Meanwhile concentration of citric acid adhesive significantly affected the density, moisture content, water absorption, thickness swelling, MOR, internal bond, and screw holding strength. The interaction between the densities factor and concentration of citric acid has a significant effect on thickness swelling and density. The physical and mechanical properties of particle boards which fulfill the JIS A 5908 2003 standard were density, moisture content, MOR, and screw holding strength. The durability of particleboard againts termites has a very strong level. The average values of termites mortality were 94% ~ 100%. The average of wood weight loss values were 9.61%~ 18.51%. The particle board made with a density 0.8 gr/cm3 and concentration of citric acid adhesive 30% achieved the highest values on physical properties, mechanical properties and durability to the termites Coptotermes curvignathus. Keywords : citric acid, Coptotermes curvignathus, Metroxylon spp, particle board, sago","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129423466","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}
Myrmecodia pendens are epiphytic plants which known as herbal plants in some region in Indonesia. The purpose of this study was to examine Myrmecodia pendens extracts with different concentrations against subterranean termites Coptotermes curvignathus Holmgren. The research was conducted at the Wood Technology Laboratory, Forestry Faculty, Tanjungpura University for three months. Myrmecodia pendens was from Maluku Island. 50 gram Myrmecodia pendens was extract with methanol with ratio 1:3, then the extract was made into five concentrations i.e. 2%, 4%, 6%, 8% and 10%. Filter paper then dipped into the extract solution and used for food substrates of termites. The bioassay was conducted for 21 days in termite’s chamber room. Each treatment has three replications. The indicator used for evaluate the effectiveness of the extract was termites mortality and filter paper weight loss. The results showed the rendemen of Myrmecodia pendens extract was 24.1888 gram (23.1576%). The average value of termite’s mortality was 67.33% - 100.00%. The concentration of 2% has termites mortality values of 67.33% and included in the category of strong levels of anti-termite activity. The highest termite’s mortality value was achieved on concentration of 10%. The average value of filter paper weight loss was 33.54% – 65.27%. The highest concentration of the extracts resulted in the lowest filter paper weight loss. Meanwhile on control treatment the average values of termites mortality was 14.67% and the filter paper weight loss was 73.22%. The extract Myrmecodia pendens was effectives to inhibition the subterranean termites attacks. The optimum concentration of Myrmecodia pendens extract was achieved at concentration 6% with termites mortality value was 78% with category of very strong levels of anti-termite activity.Keywords : antitermites, Coptotermes curvignathus, Myrmecodia pendens, preservation
{"title":"BIOAKTIVITAS EKSTRAK SARANG SEMUT Myrmecodia pendens TERHADAP RAYAP TANAH Coptotermes curvignathus Holmgren","authors":"Muhammad Ramadhan Dwi, Nurhaida","doi":"10.26418/jt.v8i2.31073","DOIUrl":"https://doi.org/10.26418/jt.v8i2.31073","url":null,"abstract":"Myrmecodia pendens are epiphytic plants which known as herbal plants in some region in Indonesia. The purpose of this study was to examine Myrmecodia pendens extracts with different concentrations against subterranean termites Coptotermes curvignathus Holmgren. The research was conducted at the Wood Technology Laboratory, Forestry Faculty, Tanjungpura University for three months. Myrmecodia pendens was from Maluku Island. 50 gram Myrmecodia pendens was extract with methanol with ratio 1:3, then the extract was made into five concentrations i.e. 2%, 4%, 6%, 8% and 10%. Filter paper then dipped into the extract solution and used for food substrates of termites. The bioassay was conducted for 21 days in termite’s chamber room. Each treatment has three replications. The indicator used for evaluate the effectiveness of the extract was termites mortality and filter paper weight loss. The results showed the rendemen of Myrmecodia pendens extract was 24.1888 gram (23.1576%). The average value of termite’s mortality was 67.33% - 100.00%. The concentration of 2% has termites mortality values of 67.33% and included in the category of strong levels of anti-termite activity. The highest termite’s mortality value was achieved on concentration of 10%. The average value of filter paper weight loss was 33.54% – 65.27%. The highest concentration of the extracts resulted in the lowest filter paper weight loss. Meanwhile on control treatment the average values of termites mortality was 14.67% and the filter paper weight loss was 73.22%. The extract Myrmecodia pendens was effectives to inhibition the subterranean termites attacks. The optimum concentration of Myrmecodia pendens extract was achieved at concentration 6% with termites mortality value was 78% with category of very strong levels of anti-termite activity.Keywords : antitermites, Coptotermes curvignathus, Myrmecodia pendens, preservation","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126925710","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 aim of the study was to obtain a comparison of the durability of sengon (Falcataria moluccana) and sugi wood (Cryptomeria japonica) after preservation with Jati (Tectona grandis) tree bark waste to subterranean termites Coptotermes curvignathus Holmgren attack and to determine the best concentration of wood preservation from Jati extract. Evaluation the durability of wood used the JIS K 1571 2004 standar method. Test parameters in the study were preservative retention, termite mortality and weight loss of the wood test sample. The results showed the highest retention was achieved in Sengon wood of 0.466 kg /m3 and the followed by Sugi wood which was 0.740 kg /m3. The lowest termites mortality value was in non-teated wood of Sengon wood with value 13.091%, and in other sengon wood which treated by extract of Jati bark with concentration of 2%, 4%, 5%, the termites mortality was 100%. Meanwhile in Sugi wood the termites mortality in non-treated wood was 12.576% and other Sugi wood which treated by extract of Jati bark with concentration of 1%, 2%, 3%, 4%, 5% the mortality value reached 100%. The average percentage values of the highest weight loss was 15.483% in non-treated sugi wood, while the lowest weight loss was in sengon wood which was given 5% extract of teak bark with a concentration of only 2.099%. The optimal concentration of Jati tree bark for wood preservation to Sengon wood was on concentration 25, meanwhile in Sugi wood was on concentration 1%.Keywords: Cryptomeria japonica, ekstrak kulit kayu, Falcataria moluccana, preservation, Tectona grandis
本研究的目的是比较日本杉木(Cryptomeria japonica)和松木(Falcataria moluccana)的树皮废对地下白蚁Coptotermes curvignathus Holmgren攻击后的保存耐久性，并确定日本杉木提取物的最佳保存浓度。评价木材的耐久性采用JIS K 1571 2004标准方法。试验参数为木材试样的保鲜率、白蚁死亡率和失重率。结果表明:杉木截留量最高，为0.466 kg /m3，杉木次之，为0.740 kg /m3;白蚁死亡率最低的是木参未处理木材，为13.091%，其余木参经2%、4%、5%的木参树皮提取物处理后，白蚁死亡率均为100%。在杉木中，未经处理的杉木白蚁死亡率为12.576%，其余杉木经1%、2%、3%、4%、5%浓度的槐皮提取物处理后，白蚁死亡率均达到100%。未处理的杉木平均失重率最高为15.483%，而给予5%柚木皮提取物浓度仅为2.099%的松香木平均失重率最低。槐皮对杉木的最佳保鲜浓度为25，杉木的最佳保鲜浓度为1%。关键词:柳杉，柳杉，黄颡鱼，保存，大构造
{"title":"PERBANDINGAN TINGKAT KEAWETAN KAYU SENGON (Falcataria moluccana L. Nielsen) DAN KAYU SUGI (Cryptomeria japonica D. Don) DENGAN EKSTRAK LIMBAH KULIT KAYU JATI (Tectona grandis L.F.) TERHADAP SERANGAN RAYAP TANAH Coptotermes curvignathus Holmgren","authors":"Nofi Utari, Farah Diba, Lolyta Sisillia","doi":"10.26418/jt.v8i2.30893","DOIUrl":"https://doi.org/10.26418/jt.v8i2.30893","url":null,"abstract":"The aim of the study was to obtain a comparison of the durability of sengon (Falcataria moluccana) and sugi wood (Cryptomeria japonica) after preservation with Jati (Tectona grandis) tree bark waste to subterranean termites Coptotermes curvignathus Holmgren attack and to determine the best concentration of wood preservation from Jati extract. Evaluation the durability of wood used the JIS K 1571 2004 standar method. Test parameters in the study were preservative retention, termite mortality and weight loss of the wood test sample. The results showed the highest retention was achieved in Sengon wood of 0.466 kg /m3 and the followed by Sugi wood which was 0.740 kg /m3. The lowest termites mortality value was in non-teated wood of Sengon wood with value 13.091%, and in other sengon wood which treated by extract of Jati bark with concentration of 2%, 4%, 5%, the termites mortality was 100%. Meanwhile in Sugi wood the termites mortality in non-treated wood was 12.576% and other Sugi wood which treated by extract of Jati bark with concentration of 1%, 2%, 3%, 4%, 5% the mortality value reached 100%. The average percentage values of the highest weight loss was 15.483% in non-treated sugi wood, while the lowest weight loss was in sengon wood which was given 5% extract of teak bark with a concentration of only 2.099%. The optimal concentration of Jati tree bark for wood preservation to Sengon wood was on concentration 25, meanwhile in Sugi wood was on concentration 1%.Keywords: Cryptomeria japonica, ekstrak kulit kayu, Falcataria moluccana, preservation, Tectona grandis","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130168806","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}
Forest harvesting is a logging activity, distribution of trunks, skidding, loading and transportation. This activity involves a lot of heavy equipment that results in soil compaction and reduced vegetation cover. This condition causes changes in soil fertility conditions. This study aims to determine changes in soil fertility that occur due to forest exploitation activities. Namely by observing the physical and chemical properties of the soil in the area of the former skid trail, ex-TPn, former TPk, former logging areas. The research method used for data retrieval is the survey method with porposive sampling, while the data obtained is analyzed using descriptive analysis. Based on the results of the analysis of the physical and chemical properties of the soil, it shows that the former TPN area is the area with the lowest soil fertility value. Former logging areas have the best quality of soil fertility compared to other areas; such as former skid trails, former TPk and former Tpn areas even though they are still included in the low fertility classification, with organic matter in the former logged area of 2.24%. The organic matter content is only 0.8% with clay texture.Keyword: harvesting, forest, forest land, soil fertility
{"title":"TINGKAT KESUBURAN TANAH PADA AREAL EKS PENEBANGAN HUTAN DI AREAL HPH PT. KSK NANGA PINOH KAB. MELAWI","authors":"Siti Latifah, Ratna Herawatiningsih","doi":"10.26418/jt.v8i1.30202","DOIUrl":"https://doi.org/10.26418/jt.v8i1.30202","url":null,"abstract":"Forest harvesting is a logging activity, distribution of trunks, skidding, loading and transportation. This activity involves a lot of heavy equipment that results in soil compaction and reduced vegetation cover. This condition causes changes in soil fertility conditions. This study aims to determine changes in soil fertility that occur due to forest exploitation activities. Namely by observing the physical and chemical properties of the soil in the area of the former skid trail, ex-TPn, former TPk, former logging areas. The research method used for data retrieval is the survey method with porposive sampling, while the data obtained is analyzed using descriptive analysis. Based on the results of the analysis of the physical and chemical properties of the soil, it shows that the former TPN area is the area with the lowest soil fertility value. Former logging areas have the best quality of soil fertility compared to other areas; such as former skid trails, former TPk and former Tpn areas even though they are still included in the low fertility classification, with organic matter in the former logged area of 2.24%. The organic matter content is only 0.8% with clay texture.Keyword: harvesting, forest, forest land, soil fertility","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132509249","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}
Wuri Prihatiningtiyas, Y. Mariani, H. A. Oramahi, F. Yusro, Lolyta Sisilia
The aims of this research are to determine the secondary metabolite content found in the ethanol extract of kweni mango bark (Mangifera odorata Griff) and analyze its potency as a natural antibacterial against Escherichia coli and Staphylococcus aureus. The research was started by maceration process using 96% ethanol solvent, then evaporated at 40-50oC and obtain yield of 20,61% with powder content of 8,34%. Furthermore, phytochemical screening was performed qualitatively to determine the secondary metabolite of the extract. The results showed that ethanol extract of M. odorata Griff bark contained secondary metabolites such as alkaloids, flavonoids, saponins, tannins, terpenoids and phenolics. In this study antibacterial activity was carried out using disc diffusion method in Plate Count Agar media and incubated for 24-48 hours. The results showed that the largest diameter of inhibitory zones formed at a concentration of 15 mg/ml for S. aureus was 12,33 mm with strong classified and for E. coli bacteria with a concentration of 200 mg/ml of 23,67 mm with very strong classified, and almost equal with the result shown by 30 µg tetracycline as positive control, which is 25 mm. The results of this study it can be concluded that the ethanol extract of the kweni mango bark (M. odorata Griff) is bacteriostatic.Keywords: antibacterial activity, Mangifera odorata Griff, phytochemical screening, Escherichia coli, Staphylococcus aureus.
{"title":"UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL KULIT BATANG MANGGA KWENI (Mangifera odorata Griff) TERHADAP Escherichia coli ATCC 25922 DAN Staphylococcus aureus ATCC 25923","authors":"Wuri Prihatiningtiyas, Y. Mariani, H. A. Oramahi, F. Yusro, Lolyta Sisilia","doi":"10.26418/jt.v8i2.30206","DOIUrl":"https://doi.org/10.26418/jt.v8i2.30206","url":null,"abstract":"The aims of this research are to determine the secondary metabolite content found in the ethanol extract of kweni mango bark (Mangifera odorata Griff) and analyze its potency as a natural antibacterial against Escherichia coli and Staphylococcus aureus. The research was started by maceration process using 96% ethanol solvent, then evaporated at 40-50oC and obtain yield of 20,61% with powder content of 8,34%. Furthermore, phytochemical screening was performed qualitatively to determine the secondary metabolite of the extract. The results showed that ethanol extract of M. odorata Griff bark contained secondary metabolites such as alkaloids, flavonoids, saponins, tannins, terpenoids and phenolics. In this study antibacterial activity was carried out using disc diffusion method in Plate Count Agar media and incubated for 24-48 hours. The results showed that the largest diameter of inhibitory zones formed at a concentration of 15 mg/ml for S. aureus was 12,33 mm with strong classified and for E. coli bacteria with a concentration of 200 mg/ml of 23,67 mm with very strong classified, and almost equal with the result shown by 30 µg tetracycline as positive control, which is 25 mm. The results of this study it can be concluded that the ethanol extract of the kweni mango bark (M. odorata Griff) is bacteriostatic.Keywords: antibacterial activity, Mangifera odorata Griff, phytochemical screening, Escherichia coli, Staphylococcus aureus.","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"13 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126102365","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}
Diarrhea and typhoid fever are diseases commonly suffered by people in Indonesia, and bacteria such as Escherichia coli (diarrhea) and Salmonella typhi (typhoid fever) are one of those diseases causative agents. Various plants are potentially used as anti-bacterial including ulin (Eusideroxylon zwageri). The aims of this study were to analysis the yield and potential secondary metabolite content in ethanol extract of E. zwageri, and determine the optimal concentration in inhibits the growth of bacteria E. coli and S. typhi. The methods used in this study were measure the moisture content of E. zwageri wood bark powder, extraction with ethanol solvent, measure the yield percentage, qualitative of phytochemical analysis, and antibacterial assays. The results showed that the yield of ethanol extract of E. zwageri is 21,63% with 7,6% of moisture content. The extract positively contained alkaloids, flavonoids, tannins, saponins, phenolics and terpenoids. The optimum concentration in inhibits the growth of bacteria E. coli is 200 mg/ml and categorized as very strong inhibition response, and 15 mg/ml is concentration used in inhibits the S. typhi and categorized as strong inhibition response.Keywords: Antibacterial activity, Escherichia coli, Eusideroxylon zwageri, phytochemical screening, Salmonella typhi.
{"title":"SKRINING FITOKIMIA DAN AKTIVITAS ANTIBAKTERI EKSTRAK KULIT BATANG (Eusideroxylon zwageri) TERHADAP Escherichia coli DAN Salmonella typhi","authors":"Hana Wila, Fathul Yusro, Yeni Mariani","doi":"10.26418/jt.v8i1.30147","DOIUrl":"https://doi.org/10.26418/jt.v8i1.30147","url":null,"abstract":"Diarrhea and typhoid fever are diseases commonly suffered by people in Indonesia, and bacteria such as Escherichia coli (diarrhea) and Salmonella typhi (typhoid fever) are one of those diseases causative agents. Various plants are potentially used as anti-bacterial including ulin (Eusideroxylon zwageri). The aims of this study were to analysis the yield and potential secondary metabolite content in ethanol extract of E. zwageri, and determine the optimal concentration in inhibits the growth of bacteria E. coli and S. typhi. The methods used in this study were measure the moisture content of E. zwageri wood bark powder, extraction with ethanol solvent, measure the yield percentage, qualitative of phytochemical analysis, and antibacterial assays. The results showed that the yield of ethanol extract of E. zwageri is 21,63% with 7,6% of moisture content. The extract positively contained alkaloids, flavonoids, tannins, saponins, phenolics and terpenoids. The optimum concentration in inhibits the growth of bacteria E. coli is 200 mg/ml and categorized as very strong inhibition response, and 15 mg/ml is concentration used in inhibits the S. typhi and categorized as strong inhibition response.Keywords: Antibacterial activity, Escherichia coli, Eusideroxylon zwageri, phytochemical screening, Salmonella typhi.","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594817","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 research aimed to evaluate the influence of particle size of charcoal from oil palm fronds on the properties of charcoal briquette. The quality of charcoal briquette was evaluated according to Standar Nasional Indonesia (SNI) 01-6235-2000. The methods use Completely Random Design with factor the particle size. The particle size consist of three size, the first particle loss of 10 mesh and retained 20 mesh; the second particle loss of 20 mesh and retained 40 mesh and the third particle loss of 40 mesh and retained 60 mesh. The quality of charcoal consist of moisture content, ash content, fixed carbon, calor value and flying material. The result of research showed that the average value of moisture content was 8.49% - 12.41%, ash content was 7.34% - 8.78%, flying materials was 13.71% - 21.08 %, fixed carbon was 71.57 % - 77.50 % and calor value was 5124 kkal/kg - 5338 kkal/kg. The research result concludes that the best charcoal briquet is on particle size which loss of 10 mesh and retained 20 mesh. This charcoal fulfilled the Indonesian National Standard (INS) 01-6235-2000.Keywords: bioenergy, charcoal briquette, Elaeis guinensis, oil palm frond, particle size
{"title":"KUALITAS BRIKET ARANG DARI BATANG KELAPA SAWIT (Elaeis guineensis Jacq) BERDASARKAN UKURAN SERBUK","authors":"Oki Herli Usmayadi, Nurhaida, Dina Setyawati","doi":"10.26418/jt.v8i1.28246","DOIUrl":"https://doi.org/10.26418/jt.v8i1.28246","url":null,"abstract":"The research aimed to evaluate the influence of particle size of charcoal from oil palm fronds on the properties of charcoal briquette. The quality of charcoal briquette was evaluated according to Standar Nasional Indonesia (SNI) 01-6235-2000. The methods use Completely Random Design with factor the particle size. The particle size consist of three size, the first particle loss of 10 mesh and retained 20 mesh; the second particle loss of 20 mesh and retained 40 mesh and the third particle loss of 40 mesh and retained 60 mesh. The quality of charcoal consist of moisture content, ash content, fixed carbon, calor value and flying material. The result of research showed that the average value of moisture content was 8.49% - 12.41%, ash content was 7.34% - 8.78%, flying materials was 13.71% - 21.08 %, fixed carbon was 71.57 % - 77.50 % and calor value was 5124 kkal/kg - 5338 kkal/kg. The research result concludes that the best charcoal briquet is on particle size which loss of 10 mesh and retained 20 mesh. This charcoal fulfilled the Indonesian National Standard (INS) 01-6235-2000.Keywords: bioenergy, charcoal briquette, Elaeis guinensis, oil palm frond, particle size","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122955324","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}
This research aims to determine the level of perception and society participation in forest conservation of Rumah Pelangi as conservation areas. Benefits of this research is to provide feedback for the manager and local authorities to managing the Rumah Pelangi for the sustainability of forest management in its area. The method used is descriptive while the data collection used a structured interview using a questionnaire. The number of respondents in the study were 76 respondents who are local residents and have at least 20 years old with minimum domicile in the are at least 3 years. Research result shows that public perceptions of the forest area in Rumah Pelangi is very low when averaged by the results of the two hamlets percentage did not achieve 50%, and the level of result community participation is low category of all, are under 60%. There is no correlation between perception and society participation in forest preservation of Rumah Pelangi. It is seen of the high number of society perception of Rumah Pelangi, however society participation in managing and protecting the region is very low.Keyword: forest conservation, perception, participation, Rumah Pelangi, society
{"title":"PERSEPSI DAN PARTISIPASI MASYARAKAT DALAM PELESTARIAN HUTAN RUMAH PELANGI SEBAGAI KAWASAN KONSERVASI (Studi Kasus Hutan Rumah Pelangi, Desa Teluk Bakung, Kecamatan Ambawang, Kabupaten Kubu Raya)","authors":"Muhammad Syukur Putra, Sofyan Zainal, M. Idham","doi":"10.26418/jt.v8i1.28247","DOIUrl":"https://doi.org/10.26418/jt.v8i1.28247","url":null,"abstract":"This research aims to determine the level of perception and society participation in forest conservation of Rumah Pelangi as conservation areas. Benefits of this research is to provide feedback for the manager and local authorities to managing the Rumah Pelangi for the sustainability of forest management in its area. The method used is descriptive while the data collection used a structured interview using a questionnaire. The number of respondents in the study were 76 respondents who are local residents and have at least 20 years old with minimum domicile in the are at least 3 years. Research result shows that public perceptions of the forest area in Rumah Pelangi is very low when averaged by the results of the two hamlets percentage did not achieve 50%, and the level of result community participation is low category of all, are under 60%. There is no correlation between perception and society participation in forest preservation of Rumah Pelangi. It is seen of the high number of society perception of Rumah Pelangi, however society participation in managing and protecting the region is very low.Keyword: forest conservation, perception, participation, Rumah Pelangi, society","PeriodicalId":250482,"journal":{"name":"Jurnal TENGKAWANG","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126813444","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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