Pub Date : 1900-01-01DOI: 10.5220/0008553603090315
Yunasfi, Dinda Dwi Utami Sirait, B. Utomo
: Rhizophora mucronata is one mangrove species that is quite dominant found in Belawan. R. mucronata litter that falls to the forest floor will decomposed with soil microbial decomposers. Fungi are species that play an important role in the decomposition process and can assist the process of plant growth. The purpose of this study were to determine the frequency of colonization and the number of species and diversity index fungi in leaf litter R. mucronata at different levels of salinity. The research using purposive sampling method by determining the 3-point observation stations based on differences in salinity. The research showed that the highest fungi population found in station 1 with salinity 0-10 ppt worth 4.04 × 102 cfu / ml. The highest frequency of fungi colonization of litter decomposition process found in Trichoderma sp. The highest number of fungi species was found in the level of salinity 0-10 ppt as many as 13 species of fungi. The index species of fungi in Belawan waters show the same range that is currently illustrating that sufficient productivity, ecosystem conditions fairly balanced, ecologically balanced pressure.
{"title":"Rhizophora mucronata Leaf Litter Decomposition by Fungi on Various Level of Salinity in Belawan","authors":"Yunasfi, Dinda Dwi Utami Sirait, B. Utomo","doi":"10.5220/0008553603090315","DOIUrl":"https://doi.org/10.5220/0008553603090315","url":null,"abstract":": Rhizophora mucronata is one mangrove species that is quite dominant found in Belawan. R. mucronata litter that falls to the forest floor will decomposed with soil microbial decomposers. Fungi are species that play an important role in the decomposition process and can assist the process of plant growth. The purpose of this study were to determine the frequency of colonization and the number of species and diversity index fungi in leaf litter R. mucronata at different levels of salinity. The research using purposive sampling method by determining the 3-point observation stations based on differences in salinity. The research showed that the highest fungi population found in station 1 with salinity 0-10 ppt worth 4.04 × 102 cfu / ml. The highest frequency of fungi colonization of litter decomposition process found in Trichoderma sp. The highest number of fungi species was found in the level of salinity 0-10 ppt as many as 13 species of fungi. The index species of fungi in Belawan waters show the same range that is currently illustrating that sufficient productivity, ecosystem conditions fairly balanced, ecologically balanced pressure.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125041341","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}
Pub Date : 1900-01-01DOI: 10.5220/0008552702610264
I. Risnasari, A. Nuryawan, Novita Frianty Siallagan
: The production of particleboard still uses formaldehyde-based adhesives, such as urea formaldehyde (UF) adhesives, although it has been known that the adhesive is harmful to human health in the long term. Therefore, an effort is needed to get adhesive that is relatively safe to use. One of them is by utilizing tea plant waste which can reduce formaldehyde emissions. The purpose of this study was to evaluate the physical and mechanical properties of particleboard, to evaluate the ratio of waste tea leaves (Camellia sinensis L)and meranti wood ( Shorea sp ) particles, and to evaluate the effect of adding waste tea leaves for formaldehyde emissions produced by particleboard. The results showed that the addition of tea leaf particles can improve the physical and mechanical properties of the particleboard.
{"title":"Characterization of Particleboard from Waste Tea Leaves (Camellia Sinensis L) and Meranti Wood (Shorea Sp) using Urea-Formaldehyde Adhesive and It’s Formaldehyde Emission","authors":"I. Risnasari, A. Nuryawan, Novita Frianty Siallagan","doi":"10.5220/0008552702610264","DOIUrl":"https://doi.org/10.5220/0008552702610264","url":null,"abstract":": The production of particleboard still uses formaldehyde-based adhesives, such as urea formaldehyde (UF) adhesives, although it has been known that the adhesive is harmful to human health in the long term. Therefore, an effort is needed to get adhesive that is relatively safe to use. One of them is by utilizing tea plant waste which can reduce formaldehyde emissions. The purpose of this study was to evaluate the physical and mechanical properties of particleboard, to evaluate the ratio of waste tea leaves (Camellia sinensis L)and meranti wood ( Shorea sp ) particles, and to evaluate the effect of adding waste tea leaves for formaldehyde emissions produced by particleboard. The results showed that the addition of tea leaf particles can improve the physical and mechanical properties of the particleboard.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124376915","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}
Pub Date : 1900-01-01DOI: 10.5220/0008526401160119
M. Nurminah, R. Nainggolan
: Indonesia spend much money to import wheat flour from abroad to make noodles. Based on this we are interested in applying orange sweet potato to substitute wheat flour for making noodles. The purposes of this research were to find out how much orange sweet potato was able to substitute wheat flour to making noodles, to increase using local commodity and increase added value. This research deals two treatments the type of stabilizers and the ratio of composite flour (orange sweet potato and wheat flour). The orange sweet potato flour can substitute wheat flour about 20-30%.
{"title":"The Effect of Stabilizers Type and the Comparison of Wheat Flour with Orange Sweet Potato Flour on Dry Noodles Quality","authors":"M. Nurminah, R. Nainggolan","doi":"10.5220/0008526401160119","DOIUrl":"https://doi.org/10.5220/0008526401160119","url":null,"abstract":": Indonesia spend much money to import wheat flour from abroad to make noodles. Based on this we are interested in applying orange sweet potato to substitute wheat flour for making noodles. The purposes of this research were to find out how much orange sweet potato was able to substitute wheat flour to making noodles, to increase using local commodity and increase added value. This research deals two treatments the type of stabilizers and the ratio of composite flour (orange sweet potato and wheat flour). The orange sweet potato flour can substitute wheat flour about 20-30%.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129723818","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}
Pub Date : 1900-01-01DOI: 10.5220/0008554103390346
A. Susilowati, D. Elfiati, H. H. Rachmat, Y. S. Kusuma, Andri Saut Pranata Sihombing
: Raru is the name for bark that produced by several genus of Dipterocarpaceae such as Cotylelobium, Shorea and Vatica. The raru bark known as important source for traditional medicine of diabetic and mixture of bataknese alkoholic drink called "tuak" for increasing the fermentation rate. The lack of natural regeneration and destructive illegal harvesting for wood and bark, decreased the population every year. Due to this condition, since 1998 this species classified on endangered (EN) based on IUCN Redlist. Previous research showed only one species was found in North Sumatra, but from local community information, there were three local species can be found in Central Tapanuli, those were raru songal, raru dahanon and raru pulut. The objective of our research were (1). To determine the morphological character of local raru species from Central Tapanuli and (2). To determine phylogeny clustering based on morphological characters. Morphological data was collected from direct observation and measurement of on vegetative part of raru trees (stem, canopy, and leaf). Morphological characters were examined using descriptive analysis, phenotypic variability using standard deviation, and cluster analyses. The result showed that there was a difference between three raru species according to 32 observed characters including leaf, stem, bark, crown type, wood and the rosin. Analysis and measurement both quantitative and qualitative characters clustered raru into two groups. In which, raru songal separated with other species.
{"title":"Morphophylogeny of Raru Producing Trees from Central Tapanuli-North Sumatra","authors":"A. Susilowati, D. Elfiati, H. H. Rachmat, Y. S. Kusuma, Andri Saut Pranata Sihombing","doi":"10.5220/0008554103390346","DOIUrl":"https://doi.org/10.5220/0008554103390346","url":null,"abstract":": Raru is the name for bark that produced by several genus of Dipterocarpaceae such as Cotylelobium, Shorea and Vatica. The raru bark known as important source for traditional medicine of diabetic and mixture of bataknese alkoholic drink called \"tuak\" for increasing the fermentation rate. The lack of natural regeneration and destructive illegal harvesting for wood and bark, decreased the population every year. Due to this condition, since 1998 this species classified on endangered (EN) based on IUCN Redlist. Previous research showed only one species was found in North Sumatra, but from local community information, there were three local species can be found in Central Tapanuli, those were raru songal, raru dahanon and raru pulut. The objective of our research were (1). To determine the morphological character of local raru species from Central Tapanuli and (2). To determine phylogeny clustering based on morphological characters. Morphological data was collected from direct observation and measurement of on vegetative part of raru trees (stem, canopy, and leaf). Morphological characters were examined using descriptive analysis, phenotypic variability using standard deviation, and cluster analyses. The result showed that there was a difference between three raru species according to 32 observed characters including leaf, stem, bark, crown type, wood and the rosin. Analysis and measurement both quantitative and qualitative characters clustered raru into two groups. In which, raru songal separated with other species.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133647250","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}
Pub Date : 1900-01-01DOI: 10.5220/0008553803220326
E. Effendy, Indri Meiya Br Sembiring, N. Utami
: The aging process will cause changes in anatomy and physiology. Generalized Anxiety Disorder is a matter of concern about everyday problems and the anxiety, tired, difficult to concentrate, irritable, muscle tension, and problem of sleeping. Matricaria recutita or Chamomilla recutita has been used as a traditional herb medicine because of its soothing effects. Milk contains many amino acids tryptophan which is one of the basic ingredients of serotonin, so the body can rest well. The purpose of this study is to invent the effect of warm milk and chamomile tea on symptoms of anxiety in the elderly. This is an experimental analytic study, using a pretest-posttest design with an 8-week purposive sampling technique located in Panti Jompo Karya Kasih, Medan. 54 participants completed the HAM-A Rating Scale before and after the intervention with 18 subjects each in the group of warm milk, chamomile tea and controls. Participants aged 60-74 years were men and women with good cognitive abilities. Based on the results of this study, it was found that the difference in scores before and after in the milk group was 21.56 and in the chamomile tea group it was 21.50. Through the T-independent test also obtained the value of P is 0.59 (p> 0.05) that means there is no significant difference regarding the provision of warm milk and chamomile tea to anxiety in the elderly.
衰老过程会引起解剖学和生理学上的变化。广泛性焦虑障碍是一种涉及日常问题和焦虑，疲劳，难以集中注意力，易怒，肌肉紧张和睡眠问题的问题。洋甘菊(Chamomilla recutta)因其舒缓作用而被用作传统草药。牛奶中含有许多氨基酸，色氨酸是血清素的基本成分之一，所以身体可以很好地休息。本研究的目的是发明温牛奶和洋甘菊茶对老年人焦虑症状的影响。本研究是一项实验分析研究，在棉兰Panti Jompo Karya Kasih采用为期8周的有目的抽样技术，采用前测后测设计，54名参与者在干预前后完成HAM-A量表，温牛奶、洋甘菊茶和对照组各18名。参与者年龄在60-74岁之间，有良好认知能力的男性和女性。根据本研究的结果，牛奶组和洋甘菊茶组的前后得分差异为21.56，洋甘菊茶组的前后得分差异为21.50。通过t独立检验也得到P值为0.59 (P > 0.05)，即提供温牛奶和洋甘菊茶对老年人焦虑的影响无显著差异。
{"title":"The Effectiveness of Warm Milk and Chamomile Tea on Anxiety Symptomps in the Elderly","authors":"E. Effendy, Indri Meiya Br Sembiring, N. Utami","doi":"10.5220/0008553803220326","DOIUrl":"https://doi.org/10.5220/0008553803220326","url":null,"abstract":": The aging process will cause changes in anatomy and physiology. Generalized Anxiety Disorder is a matter of concern about everyday problems and the anxiety, tired, difficult to concentrate, irritable, muscle tension, and problem of sleeping. Matricaria recutita or Chamomilla recutita has been used as a traditional herb medicine because of its soothing effects. Milk contains many amino acids tryptophan which is one of the basic ingredients of serotonin, so the body can rest well. The purpose of this study is to invent the effect of warm milk and chamomile tea on symptoms of anxiety in the elderly. This is an experimental analytic study, using a pretest-posttest design with an 8-week purposive sampling technique located in Panti Jompo Karya Kasih, Medan. 54 participants completed the HAM-A Rating Scale before and after the intervention with 18 subjects each in the group of warm milk, chamomile tea and controls. Participants aged 60-74 years were men and women with good cognitive abilities. Based on the results of this study, it was found that the difference in scores before and after in the milk group was 21.56 and in the chamomile tea group it was 21.50. Through the T-independent test also obtained the value of P is 0.59 (p> 0.05) that means there is no significant difference regarding the provision of warm milk and chamomile tea to anxiety in the elderly.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134231593","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}
Pub Date : 1900-01-01DOI: 10.5220/0008387900380041
N. Sulistiyono, K. Amri, P. Patana, A. S. Thoha
: Mangrove ecosystem has many economic and ecological benefits, but the presence of mangrove forests is increasingly threatened. Information about the damage of mangrove ecosystems is very much needed in mangrove rehabilitation activities. This study aims to get information about the level of damage to the mangrove ecosystem in Percut Sei Tuan for the period 2006 - 2016. The approach of the methodology used is overlain technique by giving weight and scores to the types of land use factors, canopy density and soil resistance to abrasion. The use of Geographic Information System (GIS) technology and remote sensing is used as a tool to determine the distribution of mangrove damage in the period 2006 to 2016. The results of the study indicate that the level of damage of the mangrove ecosystem in Percut Sei Tuan tends to increase. In 2006 it was identified 3,217.59 ha (70.55%) and increased in 2016 by 3,648.71 ha (80.01%). While the mangrove ecosystem that experienced a high level of damage to mangrove damage increased from 292.77 ha (6.42%) to 452.33 ha (9.92%).
红树林生态系统具有许多经济和生态效益，但红树林的存在日益受到威胁。红树林恢复活动非常需要有关红树林生态系统破坏的信息。本研究旨在了解2006年至2016年期间Percut Sei Tuan红树林生态系统的破坏程度。所使用的方法是叠加技术，通过对土地利用因素、冠层密度和土壤耐磨性的类型进行加权和评分。利用地理信息系统(GIS)技术和遥感作为工具，确定了2006 - 2016年红树林的破坏分布。研究结果表明，红树生态系统的破坏程度有增加的趋势。2006年确定为3217.59公顷(70.55%)，2016年增加了3648.71公顷(80.01%)。而红树林生态系统遭受高程度破坏的红树林从292.77 ha(6.42%)增加到452.33 ha(9.92%)。
{"title":"Monitoring the Spatial Distribution of Mangrove Ecosystem Damage in Percut Sei Tuan","authors":"N. Sulistiyono, K. Amri, P. Patana, A. S. Thoha","doi":"10.5220/0008387900380041","DOIUrl":"https://doi.org/10.5220/0008387900380041","url":null,"abstract":": Mangrove ecosystem has many economic and ecological benefits, but the presence of mangrove forests is increasingly threatened. Information about the damage of mangrove ecosystems is very much needed in mangrove rehabilitation activities. This study aims to get information about the level of damage to the mangrove ecosystem in Percut Sei Tuan for the period 2006 - 2016. The approach of the methodology used is overlain technique by giving weight and scores to the types of land use factors, canopy density and soil resistance to abrasion. The use of Geographic Information System (GIS) technology and remote sensing is used as a tool to determine the distribution of mangrove damage in the period 2006 to 2016. The results of the study indicate that the level of damage of the mangrove ecosystem in Percut Sei Tuan tends to increase. In 2006 it was identified 3,217.59 ha (70.55%) and increased in 2016 by 3,648.71 ha (80.01%). While the mangrove ecosystem that experienced a high level of damage to mangrove damage increased from 292.77 ha (6.42%) to 452.33 ha (9.92%).","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116002319","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}
Pub Date : 1900-01-01DOI: 10.5220/0008546901240127
T. S. Elvina, M. Nurminah, T. Karo-karo
: Oil palm plantations continue to increase in Indonesia. Oil palm which is no longer productive will be replanted and replace with new seeds. Oil palm replanted still has the potential to produce oil palm sap. Oil palm sap is perishable so it is necessary to handle palm oil sap before entering a further production process, one of which is natural preservative from jackfruit wood. This study used a completely factorial randomized design with 2 factors, namely the concentration of jackfruit wood added (K): (3%, 6%, 9%, 12%) and storage time (T): (0 days, 1 day, 2 days, 3 days). The result showed that the best oil palm sap was from the treatment the percentage increase of 12% jackfruit wood and storage for 3 days.
{"title":"The Effect of Natural Preservatives from Jackfruit Wood Percentage Addition on Palm Oil Sap (Elaeis guuineesis Jacq.) During Storage","authors":"T. S. Elvina, M. Nurminah, T. Karo-karo","doi":"10.5220/0008546901240127","DOIUrl":"https://doi.org/10.5220/0008546901240127","url":null,"abstract":": Oil palm plantations continue to increase in Indonesia. Oil palm which is no longer productive will be replanted and replace with new seeds. Oil palm replanted still has the potential to produce oil palm sap. Oil palm sap is perishable so it is necessary to handle palm oil sap before entering a further production process, one of which is natural preservative from jackfruit wood. This study used a completely factorial randomized design with 2 factors, namely the concentration of jackfruit wood added (K): (3%, 6%, 9%, 12%) and storage time (T): (0 days, 1 day, 2 days, 3 days). The result showed that the best oil palm sap was from the treatment the percentage increase of 12% jackfruit wood and storage for 3 days.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130102540","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}
Pub Date : 1900-01-01DOI: 10.5220/0008554003320338
Jumirah Jumirah, Z. Lubis, M. Fitria
The prevalence of stunting in a toddler is still quite high. The dominant cause is related to the low acquisition of complementary foods (CF) during the second year, especially in the fulfillment of micronutrients. Therefore, the study of the use of potential food is needed to enrich the nutrient content, especially micronutrients in CF formulations, to overcome the problem of stunting in the first thousand days of children life. This paper discusses the use of rice flour (R), awak banana (Bn), red beans (B), herbal chicken livers (L) and feet (F) in CF formulation. Formulation of CF was carried out through experimental studies using a complete randomized design with three formulas, namely RBnBLF, RBnBF, and RBnBL. The nutrient content was carried out by sending samples to Laboratory in Jogjakarta. The results showed that the third formula CF has a protein content and fat almost the same i.e. respectively 14% and 11%, carbohydrate content 56.1-61.18% and energy 380.56-397.96%, vitamin A as much as 319.99-439.85μg, vitamin C 39.11-54,51mg, calcium 0.51-1.26%, phosphorus 0.37-0.59%, iron 19.69-24,07mg, and Zinc 5.46.0mg. It was concluded that the use of several potential foods can enrich the micronutrient content of CF
{"title":"Utilization of Rice Flour, Awak Banana, Red Beans, Herbal Chicken Liver and Feet to Enrich Micronutrients Content of Complementary Food","authors":"Jumirah Jumirah, Z. Lubis, M. Fitria","doi":"10.5220/0008554003320338","DOIUrl":"https://doi.org/10.5220/0008554003320338","url":null,"abstract":"The prevalence of stunting in a toddler is still quite high. The dominant cause is related to the low acquisition of complementary foods (CF) during the second year, especially in the fulfillment of micronutrients. Therefore, the study of the use of potential food is needed to enrich the nutrient content, especially micronutrients in CF formulations, to overcome the problem of stunting in the first thousand days of children life. This paper discusses the use of rice flour (R), awak banana (Bn), red beans (B), herbal chicken livers (L) and feet (F) in CF formulation. Formulation of CF was carried out through experimental studies using a complete randomized design with three formulas, namely RBnBLF, RBnBF, and RBnBL. The nutrient content was carried out by sending samples to Laboratory in Jogjakarta. The results showed that the third formula CF has a protein content and fat almost the same i.e. respectively 14% and 11%, carbohydrate content 56.1-61.18% and energy 380.56-397.96%, vitamin A as much as 319.99-439.85μg, vitamin C 39.11-54,51mg, calcium 0.51-1.26%, phosphorus 0.37-0.59%, iron 19.69-24,07mg, and Zinc 5.46.0mg. It was concluded that the use of several potential foods can enrich the micronutrient content of CF","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114999532","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}
Pub Date : 1900-01-01DOI: 10.5220/0008553202790286
Wanda Kuswanda, Sriyanti Puspa Barus, A. Sukmana
: One of the problems that needs to be considered in the captive elephants management is the adequacy of feed. This study aims to obtain information on feed plants species, the palatability value and productivity of elephant feed in Aek Nauli's Special Purpose Forest Region. The research method was carried out by observation, focal animal sampling as well as feed productivity by measurements of changes in growth weight, height and diameter trees. The results showed that at the grazing area elephant have been identified at least 41 species of elephant feed, mainly from the Paoceae, Moraceae, Myrtaceae and Euphorbiaceae Families. The part plant species that most consumed is all parts (grass), leaves, plant skin and fruit. The species that have the highest palatability value (frequency and duration of feed) are Ottochloa nodosa, Caryota gigas and Rhodamnia cinerea. The highest leaf productivity has Arthocarpus integler and Litsea sumatrana is the lowest. Plant characteristics that affect feed growth are diameter and total height with equation (dry weight) is Ybk = 0.079 + 0.103 Diameter + 0.052 Total Height with correlation of 65.5%.
{"title":"The Potential of Sumatran Elephant Feed Plants in Aek Nauli's Special Purpose Forest Region, North Sumatera","authors":"Wanda Kuswanda, Sriyanti Puspa Barus, A. Sukmana","doi":"10.5220/0008553202790286","DOIUrl":"https://doi.org/10.5220/0008553202790286","url":null,"abstract":": One of the problems that needs to be considered in the captive elephants management is the adequacy of feed. This study aims to obtain information on feed plants species, the palatability value and productivity of elephant feed in Aek Nauli's Special Purpose Forest Region. The research method was carried out by observation, focal animal sampling as well as feed productivity by measurements of changes in growth weight, height and diameter trees. The results showed that at the grazing area elephant have been identified at least 41 species of elephant feed, mainly from the Paoceae, Moraceae, Myrtaceae and Euphorbiaceae Families. The part plant species that most consumed is all parts (grass), leaves, plant skin and fruit. The species that have the highest palatability value (frequency and duration of feed) are Ottochloa nodosa, Caryota gigas and Rhodamnia cinerea. The highest leaf productivity has Arthocarpus integler and Litsea sumatrana is the lowest. Plant characteristics that affect feed growth are diameter and total height with equation (dry weight) is Ybk = 0.079 + 0.103 Diameter + 0.052 Total Height with correlation of 65.5%.","PeriodicalId":414686,"journal":{"name":"Proceedings of the International Conference on Natural Resources and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123982312","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}
Pub Date : 1900-01-01DOI: 10.5220/0008506300870090
Adelya Irawan Manalu, I. Jamilah, S. Lenny
Quorum-sensing is a specific communication type among microbial species, exposing several virulence factors to host or internal environment. The phenomenon is currently being studied as potential target for drug discovery and development. Natural product derived from plant source may be evaluated as potential quorum-sensing inhibitor (QSI). The study aimed to determine the optimum concentration of Andaliman methanolic (MeOH) and ethyl acetate extract (EtOAc) against prodigiosin synthesis by Serratia marcescens as one of phenotypes controlled by quorum sensing. Based on optical density (OD600), both extracts did not interfere with the growth of microorganism. The optimum concentration of MeOH extract in inhibiting the prodigiosin synthesis was at concentration of 0.05% (w/v) in the end of incubation period (30 h). Meanwhile, the EtOAc extract inhibit the prodigiosin synthesis at concentration of 0.4% in the end of incubation period. Our results showed that Andaliman possess natural products as QSI which needed further evaluation in the future.
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