IJFAC Indonesian Journal of Fundamental and Applied Chemistry最新文献_第8页

Land Revegetation Post Clay Mine PT Semen Baturaja (Persero) Tbk in OKU Selatan District - Challenges for Environmental Sustainability OKU Selatan地区的土地恢复后粘土矿山PT Semen Baturaja (Persero) Tbk -环境可持续性的挑战

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-10-10 DOI: 10.24845/IJFAC.V3.I3.94

Marwan Sastradinata

{"title":"Land Revegetation Post Clay Mine PT Semen Baturaja (Persero) Tbk in OKU Selatan District - Challenges for Environmental Sustainability","authors":"Marwan Sastradinata","doi":"10.24845/IJFAC.V3.I3.94","DOIUrl":"https://doi.org/10.24845/IJFAC.V3.I3.94","url":null,"abstract":"Clay as a non-renewable natural resource causes the number of reserves to be a limiting factor for mine age. The post-mining plan is prepared as an effort to restore the physical and environmental conditions that are disturbed by mining. Data collection was carried out with location surveys, literature studies, and institutional coordination. Mine reserves are known to be 36 million tons with a thickness of up to 25 m. The clay chemical composition consisted of SiO2 12.77% -92.49%, Al2O3 2.95% -27.64% and Fe2O3 0.53% -29.46%. The environment disturbed by post-mining will be managed with 39.5 ha of plantation designation, 13.5 ha of forestry and 1.7 ha of water treatment. Natural vegetation consists of secondary forests, shrubs, resident gardens. The diversity index value of the bush species of 2.940 is dominated by 15 plant species. Distribution of evenly distributed plants such as medang, aro wood, krinjing. Vegetation of cultivated plants is dominated by 10 types of plants such as coffee, pepper, rubber. Revegetation stage in the form of cover crop sowing, nurseries and the development of fast-growing plants. Post-mining revegetation uses plants that have suitable soil conditions so that environmental improvements and environmental sustainability of clay mines are achieved.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86348316","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}

引用次数: 0

Purification of Crude Glycerol from Biodiesel By-product by Adsorption using Bentonite 膨润土吸附纯化生物柴油副产物中粗甘油

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-10-10 DOI: 10.24845/IJFAC.V3.I3.83

Erniati Anzar, M. Syahirman Yusi, Y. Bow

引用次数: 16

Indigen Bacteria from Spent Bleaching Earth Waste as A Removal Agent of Fe and Cu 漂白土废中的原生细菌作为铁和铜的脱除剂

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-10-10 DOI: 10.24845/IJFAC.V3.I3.66

Inike Fratiwi, A. Napoleon, Hary Widjayanti

引用次数: 0

Effect of DC Voltage on Prototype of Biodiesel Electrostatic Separator with Glycerin from Waste Cooking Oil 直流电压对废食用油甘油生物柴油静电分离器样机的影响

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-10-10 DOI: 10.24845/IJFAC.V3.I3.89

Jaya Utama Putra, L. Kalsum, Y. Bow

{"title":"Effect of DC Voltage on Prototype of Biodiesel Electrostatic Separator with Glycerin from Waste Cooking Oil","authors":"Jaya Utama Putra, L. Kalsum, Y. Bow","doi":"10.24845/IJFAC.V3.I3.89","DOIUrl":"https://doi.org/10.24845/IJFAC.V3.I3.89","url":null,"abstract":"The limitations of fossil fuel support on fulfillment of energy need in a sustainable and environment friendly fashion has drove society to efforts of finding and developing fresh and renewably resources. Biodiesel is one the renewable energy resource and shows environment friendly property, consist of alkyl of fatty acids monoester originated from vegetable oil or animal fat. One of important steps in biodiesel production is separation of glycerin from product. Electrostatic method has been proved in accelerating saturation of glycerin. However, several aspects still need a careful assessment to acquire biodiesel production process with standard quality assigned. In this work, we designed an electrostatic separator of biodiesel from glycerin using waste cooking oil feed. The prototype was tested in several different voltages 12 Vdc, 20 Vdc, 30 Vdc and 33.5 Vdc. The result shows the highest voltage obtained is 33.5 Vdc, separation time 2 minutes 10 seconds having viscosity, water content and density i.e. 7.2139 cSt, 0.0321% and 0.85 g/mL respectively whereas flash point increase to 1917 C. The data confirmed that the product fulfills required standard value for density, water content and flash point.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88045430","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}

引用次数: 13

Utilization of Modified White Corn Starch in Producing Marshmallow Cream 改性玉米淀粉在棉花糖奶油生产中的应用

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-06-01 DOI: 10.24845/IJFAC.V3.I2.40

N. Aini, P. Hariyadi

{"title":"Utilization of Modified White Corn Starch in Producing Marshmallow Cream","authors":"N. Aini, P. Hariyadi","doi":"10.24845/IJFAC.V3.I2.40","DOIUrl":"https://doi.org/10.24845/IJFAC.V3.I2.40","url":null,"abstract":"The purpose of this study was to determine the effect of the white maize starch by oxidation and acetylation-oxidation modification on gel formation and character of the resulting gel, and applying a modified white corn starch in manufacturing of marshmallow cream. White corn varieties Srikandi, Pulut and Canggal are used as raw materials to produce starch. Starch modification is conducted by oxidation and acetylation-oxidation. Quality analysis of the modified starch is freeze thaw stability, smallest gel formation concentration and gel strength. Corn starch, both native and modified applied in manufacturing of marshmallow cream. The results showed that the treated starch acetylation-oxidation provide the best freeze thaw stability with the least water released than native starch and modified starch oxidation. Starch modified by oxidation tend to have the highest Least Gelling Concentration (LGC). Gel produced from modified starch both oxidation and acetylation-oxidation has a gel strength greater than the native starch. Marshmallow cream that uses a modified starch by acetylation-oxidation, have the best received power in testing organoleptic by the panelists. Use of modified starch does not give a noticeable difference in color of the product, but it gives texture and the best spread power compared to products using original starch.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91335854","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}

引用次数: 1

Evaluation of the Use of Cassava Based Complete Ration Silage on Nitrogen Retention and Metabolizable Energy Male Duck 木薯基全日粮青贮对公鸭氮保留和代谢能的影响

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-06-01 DOI: 10.24845/IJFAC.V3.I2.29

S. Sandi, A. Sudarman, E. B. Laconi, K. G. Wiryawan, D. Mangunwijaja

{"title":"Evaluation of the Use of Cassava Based Complete Ration Silage on Nitrogen Retention and Metabolizable Energy Male Duck","authors":"S. Sandi, A. Sudarman, E. B. Laconi, K. G. Wiryawan, D. Mangunwijaja","doi":"10.24845/IJFAC.V3.I2.29","DOIUrl":"https://doi.org/10.24845/IJFAC.V3.I2.29","url":null,"abstract":"The purpose of this study was to evaluate the effect of a complete ration silage made of cassava biomass nitrogen retention, and metabolizable energy male ducks. Control diet consisted of corn, rice bran, coconut meal, soybean meal, vegetable oil, fish meal and premix. While the treatment of silage ration of cassava based (BBS) consisted of leaves, peel, and tubers of cassava, as well as a mix of fish meal, vegetable oil, premix, DL-methionine and L-lysine. The experimental design used was completely randomized design with 5 treatments and 4 replicates ie S0 (100% control diet), S25 (75% control diet + 25% BBS silage), S50 (50% control diet + 50% BBS silage), S75 (25% control diet + 75% BBS silage), and S100 (100% BBS silage ration). Measurement of metabolizable energy and nitrogen retention was conducted using 25 male ducks aged 10 weeks maintained in metabolic cages and adapted to experimental diets for seven days. Ducks were fasted for 24 hours before the experimental diets were offered. Metabolizable energy and nitrogen retention were measured by the method of Sibbald (1989). The results showed that a decline in nitrogen retention and, metabolizable energy along with the increasing level of BBS silage in the rations. The conclusion of this study was the use of up to 75% BBS silage generated metabolizable energy and nitrogen retention that do not differ from the control ration. Key words: cassava silage, complete ration, male duck, metabolizable energy, nitrogen retention","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80541284","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}

引用次数: 1

Assessment of Ogan River Water Quality Kabupaten OKU SUMSEL by NSFWQI Method 基于NSFWQI方法的奥干河水质评价

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-06-01 DOI: 10.24845/IJFAC.V3.I2.54

E. Yulistia, Fauziyah Fauziyah, H. Hermansyah

引用次数: 8

Assessing the Effectiveness of Top Leaf Meal of Indigofera zollingeriana to Substitute Soybean Meal through Evaluation on Protein Quality and Metabolic Energy in Poultry Feed 通过对家禽饲料中蛋白质品质和代谢能的评价，评价紫靛叶粕替代豆粕的有效性

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-06-01 DOI: 10.24845/IJFAC.V3.I2.47

R. Palupi, S. Sumiati, D. Astuti, L. Abdullah

引用次数: 3

The Effect of Chitosan Addition to the Digestibility of Dried Matter, Organic Matter and Crude Protein of Tegal’s Duck Rations 壳聚糖添加对法豆鸭口粮干物质、有机物和粗蛋白质消化率的影响

IJFAC Indonesian Journal of Fundamental and Applied Chemistry Pub Date : 2018-06-01 DOI: 10.24845/IJFAC.V3.I2.35

E. Sahara, T. Widjastuti, R. L. Balia, Abun Abun

{"title":"The Effect of Chitosan Addition to the Digestibility of Dried Matter, Organic Matter and Crude Protein of Tegal’s Duck Rations","authors":"E. Sahara, T. Widjastuti, R. L. Balia, Abun Abun","doi":"10.24845/IJFAC.V3.I2.35","DOIUrl":"https://doi.org/10.24845/IJFAC.V3.I2.35","url":null,"abstract":"The optimum performance of duck farm can be achieved by providing them with good quality rations. Rations with good digestibility will increase the productivity due to large amount intake of nutrients. Chitosan is type of animal fibre which assisted the growth of useful microbes in digestive system. Addition of chitosan in cattle rations will improve the ecologic of duck digestive system to be more conducive. The aimed of the research was to evaluate rations digestibility with the addition of chitosan. The research was used completely randomized design with 4 treatments and 5 repetitions. Each repetition consists of 2 ducks. The treatments are R0 stands for rations without chitosan and R1-R3 with addition of chitosan 0.5%, 2% and 2.5% respectively. Parameter measured were dried matter digestibility, organic matter and crude protein. Data processing was conducted by using SAS Windows 16. Result showed chitosan addition at 0.5% and 2.5% gave dried matter digestibility and crude protein does not higher than control (P>0.05) while chitosan addition at 2% gave result lower than control. Organic matter digestibility displays balanced in value. Keywords: Chitosan, Dried matter digestibility, organic matter, crude protein, rations.","PeriodicalId":31600,"journal":{"name":"IJFAC Indonesian Journal of Fundamental and Applied Chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73135197","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}

引用次数: 3