ABSTRACT Sodium Silicate is a raw material that is widely used as a filler in the detergent, soap and toothpaste industries. Sodium silicate can be synthesized from silica (SiO2), which can be obtained through the extraction process from silica-containing materials such as sand, clear glass waste or straw. In the synthesis of sodium silicate, silica is reacted with NaOH solution at a relat…
ABSTRACT Bio-oil is a fuel alternative to substitute crude oil which are renewable (renewable fuel), which means that bio-oil can be produced continuously since made from raw material that is renewable, i.e. plants. The raw material used in this study is a Palm Empty Fruit Bunches (EFB) and used tires of motorcycle. The purpose of this study was to know about the effect of reaction time on…
ABSTRACT Bio-oil is a fuel alternative to substitute crude oil which are renewable (renewable fuel), which means that bio-oil can be produced continuously since made from raw material that is renewable, i.e. plants. The raw material used in this study is a Palm Empty Fruit Bunches (EFB) and used tires of motorcycle. The purpose of this study was to know about the effect of reaction time on…
ABSTRACT Banana peels are quite a lot of waste material (banana fruit waste). Banana peel waste contains high nutrients, especially in vitamins and minerals so that it can be used as food raw material by processing it into flour by drying and sieving. The purpose of this study was to determine the effect of variations in soaking time using sodium metabisulfite solution (Na2S2O5) for 0, 20,…
ABSTRACT Banana peels are quite a lot of waste material (banana fruit waste). Banana peel waste contains high nutrients, especially in vitamins and minerals so that it can be used as food raw material by processing it into flour by drying and sieving. The purpose of this study was to determine the effect of variations in soaking time using sodium metabisulfite solution (Na2S2O5) for 0, 20,…
ABSTRACT Gelatin was a natural product that was obtained from hydrolysis of collagen. Gelatin comes from beef, fish, pork, chicken feet, etc. This study aimed to extract gelatin from chicken feet, know the effect of immersion time in HCl 5% 250 mL solution (3,5,7 days) and chicken feet texture (smooth and coarse) on yield and some physical properties of gelatin products from chicken feet. …
ABSTRACT The characteristics of SBE and quicklime almost resemble sand, but have finer particles, therefore these two materials are used in this study as a substitute for some of the sand in brick making. The purpose of this study was to determine the effect of the variation in the addition of the amount of SBE and quicklime used in the making of the concrete blocks and the quality of the …
ABSTRACT Flour is a solid particle in the form of fine grains and even very fine depending on the grinding process which can come from vegetable and animal materials. This study aims to make flour from banana peel of Kepok with variations in drying time and determine the effect of variations in drying time on moisture content, ash content, fat content, glucose content, color and odor of th…
ABSTRACT Flour is a solid particle in the form of fine grains and even very fine depending on the grinding process which can come from vegetable and animal materials. This study aims to make flour from banana peel of Kepok with variations in drying time and determine the effect of variations in drying time on moisture content, ash content, fat content, glucose content, color and odor of th…
Diabetes and its complications are non-communicable diseases which strongly associated on increasing mortality and morbidity rate in Indonesia. As a medicinal plant used by ethnomedicin in Talang Mamak tribe, Rakit Kulim District, Indragiri Hulu Regency, Riau Province, Anisophyllea disticha has its own special interest to become object study because its potential activity as a drug has not been…
In making biopelet from empty palm oil bunch waste with the addition of oil sludge as co-firing, it is carried out using torefaction and disinfection methods. The torefaction method is a thermal conversion by decomposing the chemical bonds of lignocellulosic material consisting of hemicellulose, cellulose, and lignin contained in empty palm fruit bunches. The purpose of this study was to determ…
In making bioplastic of starch and PVA, the data supporting does require raw materials' miscibility into the water solvent. To have expected high solubility of water to starch and PVA to produce the desired properties. Miscibility can predict using phase equilibrium methods. In this study, the equilibrium of starch, PVA, and water was determined using the UNIFAC method. Using the UNIFAC method …
Conventional plastics produce waste that was difficult to decompose and needed to substitute with starch-based bioplastics. Sago consist of 27-35% amylose and 50-73% amylopectin, which have the potential to be used as a material for starch-based bioplastics. This study aims to determine the optimal value of Microcrystalline Cellulose (MCC), citric acid and sorbitol for the characteristics …
Fe3O4/HAp composite can be used as drug carriers for targeted drug delivery (TTD) applications. Aim of this research was to study the effect of temperature, the mol ratio of Fe3O4/Ca(NO3)2.4H2O, synthesis time of composite Fe3O4/HAp and to calculate the crystal growth of Fe3O4/HAp composite with Avrami equation. Fe3O4 was dissolved with 50 ml aquadest then added 34 mmol Ca(NO3)2.4H2O (100 ml aq…
ABSTRACT Hospital X in pekanbaru is the hospital of the mother and child special private in pekanbaru. In the process of wastewater treatment, the laundry facilities and cafeteria of the hospital do not enter the treatment process at the wwtp so that still needs further processing in order not to pollute the surrounding environment. It is based on and Permen LH No. 5 2014 the attachment 44…
ABSTRAK This study aims to: (1) find out how to develop Project-based Student Activity Sheets on Atomic Structure Material and the periodic system of class X SMA / MA which is valid and practical, (2) produce Project-Based Student Activity Sheets on atomic structure material and periodic system elements of class X SMA / MA that are valid and practical. The object of this research is the Pr…
This research aims to produce based on Schoology E-Learning media, to determine the validity of the resulting products, to determine user responses to Schoolog-based e-Learning media. This study refers to a research and development procedure using the ADDIE development model, which includes five stages, namely analysis, design, development, implementation and evaluation (Sugiyono, 2015). Thi…
The development of this LKPD aims to develop LKPD based on scientific literacy with MEA strategy which are considered valid according to the validator’s assessment and practical based on user response test. Valid is assessed based on 6 aspects of feasibility, there are feasibility of content, characteristic of scientific literacy, characteristic of MEA strategy, language, presentation and…
Abstract: his study aims to determine the difficulties and factors that cause students' learning difficulties in the buffer solution material in class XI MIPA SMA Cendana Pekanbaru. This research is a descriptive study with a qualitative case study approach, the research population is class XI MIPA SMA Cendana Pekanbaru. The sample of this research is students whose scores have not been com…
Abstract - Improving student achievement by applying the cooperative learning model Formulate, Share, Listen and Create (FSLC) on the subject of ionic equilibrium and pH of salt solution in class XI MIA SMA Negeri 4 Pekanbaru with experimental research method design randomized control group pretestposttest against two homogeneous classes. The sample of the study was students in class XI MI…