scholarly journals THE CHARACTERISTIC OF ROBUSTA POWDER COFFE IN VARIOUS SIZE TYPES and COFFE WEIGHT ON SACHETS

2020 ◽  
Vol 3 (2) ◽  
pp. 58-69
Author(s):  
Tri Agustina ◽  
Devi Silsia ◽  
Lukman Hidayat
Keyword(s):  
Content Volume ◽  
Ash Content ◽  
Raw Material ◽  
Medium Size ◽  
Sensory Test ◽  
Random Design ◽  
Weight Test

This research aims to determine the performance influence of sachets on various sizes of bags and the weight of coffee to the characteristics of the brew of coffee bags. The study uses a completely random design with 2 treatment factors, the first factor of the volume of contents in the bag and the second factor of the packaging bag size. Analyzed With ANOVA dan when the effect is noticeable. It will be followed by using a DMRT at  5%. significant levels. The research at moisture and ash content is suitable for the raw material of coffee bags. Coffee Sari qualified SNI is on the treatment of the volume of 1/4 content and small bag size with a yield of 22.02% coffee juice. The results of the analysis on the missing coffee weight test were obtained the highest value found in the volume of the 1/3 content with a large bag size resulted in 2.73 grams of lost coffee weight. The lowest value is on the 1/2 content volume and the medium size is 0.17 grams. The sensory test was derived that the panelists preferred it to the size of a large bag and the appropriate volume of contents to fill the bag with a volume of 1/3.Keywords: Bag size and coffee weight, Coffee characteristics.

CHARACTERISTICS OF BINDERLESS PALM BIOMASS BRIQUETTES WITH VARIOUS PARTICLE SIZES

2015 ◽  
Vol 77 (8) ◽  
Author(s):  
Hasan Mohd Faizal ◽  
Z. A. Latiff ◽  
Muhammad Amin Mohd Iskandar
Keyword(s):  
Compressive Strength ◽  
Heating Temperature ◽  
Ash Content ◽  
Raw Material ◽  
Medium Size ◽  
Particle Sizes ◽  
Small Particle Size ◽  
Minimum Requirement ◽  
Large Size

The physical and combustion characteristics of binderless palm biomass briquettes were investigated experimentally for various particle sizes and heating temperatures (150-210 ). In this study, empty fruit bunch (EFB) fibres were used as a raw material. They were grounded and sieved into three different sizes; i) <300 m(small size), ii) 0.5 mm to 1.0 mm (medium size) and iii) 1.0 mm to 3.9 mm (large size). As a result, all particle sizes are possible to be used for making binderless briquette since the reliable compressive strength can be obtained. All the values of compressive strength are sufficiently high to resist mechanical disintegration. In addition, all calorific values are found to be very close to the minimum requirement for making commercial briquette, based on standard DIN51731 (17500 kJ/kg). Meanwhile, the moisture and ash content of the briquettes produced are found to be very competitive with the values belonging to a widely used local briquette. Based on the experimental results, it can be said that the best quality of 100% EFB briquette can be achieved when small particle size is used and the briquetting process is performed at the highest heating temperature.

Facile preparation of nanofiller-paper using mixed office paper without deinking

TAPPI Journal ◽  
2015 ◽  
Vol 14 (3) ◽  
pp. 167-174 ◽  
Author(s):  
QIANQIAN WANG ◽  
J.Y. ZHU
Keyword(s):  
Cellulose Nanofibrils ◽  
Ash Content ◽  
Raw Material ◽  
Mechanical Grinding ◽  
Microscope Imaging ◽  
Facile Preparation ◽  
Electron Microscope Imaging ◽  
Thermal Stability Of ◽  
Scanning Electron ◽  
Office Paper

Mixed office paper (MOP) pulp without deinking with an ash content of 18.1 ± 1.5% was used as raw material to produce nanofiller-paper. The MOP pulp with filler was mechanically fibrillated using a laboratory stone grinder. Scanning electron microscope imaging revealed that the ground filler particles were wrapped by cellulose nanofibrils (CNFs), which substantially improved the incorporation of filler into the CNF matrix. Sheets made of this CNF matrix were densified due to improved bonding. Specific tensile strength and modulus of the nanofiller-paper with 60-min grinding reached 48.4 kN·m/kg and 8.1 MN·m/kg, respectively, approximately 250% and 200% of the respective values of the paper made of unground MOP pulp. Mechanical grinding duration did not affect the thermal stability of the nanofiller-paper.

scholarly journals Assessment of Pellets from Three Forest Species: From Raw Material to End Use

Forests ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 447
Author(s):  
Miguel Alfonso Quiñones-Reveles ◽  
Víctor Manuel Ruiz-García ◽  
Sarai Ramos-Vargas ◽  
Benedicto Vargas-Larreta ◽  
Omar Masera-Cerutti ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Ash Content ◽  
Hot Water ◽  
Raw Material ◽  
Chemical Components ◽  
Energy Yield ◽  
Cellulose Content ◽  
Fixed Carbon ◽  
End Use ◽  
The Impact

This study aimed to evaluate and compare the relationship between chemical properties, energy efficiency, and emissions of wood and pellets from madroño Arbutus xalapensis Kunth, tázcate Juniperus deppeana Steud, and encino colorado Quercus sideroxyla Humb. & Bonpl. in two gasifiers (top-lit-up-draft (T-LUD) and electricity generation wood camp stove (EGWCS)) in order to determine the reduction of footprint carbon. In accordance with conventional methodologies, we determined the extracts and chemical components (lignin, cellulose, holocellulose), and the immediate analyses were carried out (volatile materials, fixed carbon, ash content and microanalysis of said ash), as well as the evaluation of emission factors (total suspended particulate matter (PM2.5), CO, CO2, CH4, black carbon (BC), elemental carbon (EC), and organic carbon (OC)). The results were statistically analyzed to compare each variable among species and gasifiers. The raw material analyzed showed how the pH ranged from 5.01 to 5.57, and the ash content ranged between 0.39 and 0.53%. The content values of Cu, Zn, Fe, Mg, and Ca ranged from 0.08 to 0.22, 0.18 to 0.19, 0.38 to 0.84, 1.75 to 1.90, and 3.62 to 3.74 mg kg−1, respectively. The extractive ranges from cyclohexane were 2.48–4.79%, acetone 2.42–4.08%, methanol 3.17–7.99%, and hot water 2.12–4.83%. The range of lignin was 18.08–28.60%. The cellulose content ranged from 43.30 to 53.90%, and holocellulose from 53.50 to 64.02%. The volatile material range was 81.2–87.42%, while fixed carbon was 11.30–17.48%; the higher heating value (HHV) of raw material and pellets presented the ranges 17.68–20.21 and 19.72–21.81 MJ kg−1, respectively. Thermal efficiency showed statistically significant differences (p < 0.05) between pellets and gasifiers, with an average of 31% Tier 3 in ISO (International Organization for Standardization) for the T-LUD and 14% (ISO Tier 1) for EGWCS, with Arbutus xalapensis being the species with the highest energy yield. The use of improved combustion devices, as well as that of selected raw material species, can reduce the impact of global warming by up to 33% on a cooking task compared to the three-stone burner.

scholarly journals Standardization of Mango (Mangifera Indica L.) Peel Simplisia of Gadung Variety

2021 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Andini Andini ◽  
Cindy Fernanda Putri
Keyword(s):  
Moisture Content ◽  
Mangifera Indica ◽  
Quality Standard ◽  
Ash Content ◽  
Water Soluble ◽  
Raw Material ◽  
Yellow Colour ◽  
Water Soluble Compound ◽  
Mango Peel ◽  
Compound Concentration

Mango peel (Mangfera indica L.) has many pharmacological effects as a traditional medicine. Therefore, standardization of mango peel simplisia needs to be done as a preparation of phytopharmaca raw material. This research aimed to obtain standardization of mango peel simplisia include specific and non-specific parameter. The research procedures include plant determination, simplisia preparation as well as specific standardization test (includes organoleptic, water-soluble compound concentration, and ethanol solution compound concentration) and nonspecific standardization test (includes moisture content, dried shrinkage, total ash content and acid insoluble ash content). The specific organoleptic parameters of dried mango peel simplisia have a distinctive sweet aroma, bitter taste, and brownish yellow colour. Water-soluble and ethanol-soluble concentrations are 22,36% ± 1,17% and 9,56% ± 0,07%. Moisture content is 9,09% ± 1,44%. Dried shrinkage rate is 0,19% ± 0,04%. Total ash and acid insoluble ash contents are 4,11% ± 0,10% and 0,14% ± 0,03%. The mango peel simplisia has met the quality standard of the raw material.

scholarly journals Elephant bones for the Middle Pleistocene toolmaker

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256090
Author(s):  
Paola Villa ◽  
Giovanni Boschian ◽  
Luca Pollarolo ◽  
Daniela Saccà ◽  
Fabrizio Marra ◽  
...  
Keyword(s):  
Upper Paleolithic ◽  
Raw Material ◽  
General Idea ◽  
Early Pleistocene ◽  
Stone Tool ◽  
Middle Pleistocene ◽  
Medium Size ◽  
Bone Tools ◽  
Lithic Industry ◽  
Taphonomic Analysis

The use of bone as raw material for implements is documented since the Early Pleistocene. Throughout the Early and Middle Pleistocene bone tool shaping was done by percussion flaking, the same technique used for knapping stone artifacts, although bone shaping was rare compared to stone tool flaking. Until recently the generally accepted idea was that early bone technology was essentially immediate and expedient, based on single-stage operations, using available bone fragments of large to medium size animals. Only Upper Paleolithic bone tools would involve several stages of manufacture with clear evidence of primary flaking or breaking of bone to produce the kind of fragments required for different kinds of tools. Our technological and taphonomic analysis of the bone assemblage of Castel di Guido, a Middle Pleistocene site in Italy, now dated by 40Ar/39Ar to about 400 ka, shows that this general idea is inexact. In spite of the fact that the number of bone bifaces at the site had been largely overestimated in previous publications, the number of verified, human-made bone tools is 98. This is the highest number of flaked bone tools made by pre-modern hominids published so far. Moreover the Castel di Guido bone assemblage is characterized by systematic production of standardized blanks (elephant diaphysis fragments) and clear diversity of tool types. Bone smoothers and intermediate pieces prove that some features of Aurignacian technology have roots that go beyond the late Mousterian, back to the Middle Pleistocene. Clearly the Castel di Guido hominids had done the first step in the process of increasing complexity of bone technology. We discuss the reasons why this innovation was not developed. The analysis of the lithic industry is done for comparison with the bone industry.

scholarly journals The Effect of different Concentration of Fish Meat on Texture, Nutrition and Sensory of ‘Tahu bakso’ made from Tilapia (Oreochromish niloticus)

2016 ◽  
Vol 19 (3) ◽  
pp. 214
Author(s):  
Tri Winarni Agustini ◽  
Yosomenggolo Sastro Darmanto ◽  
Ima Wijayanti ◽  
Putut Har Riyadi
Keyword(s):  
Analysis Of Variance ◽  
Protein Intake ◽  
Gel Strength ◽  
Ash Content ◽  
Raw Material ◽  
Fish Protein ◽  
Fish Meat ◽  
Central Java ◽  
Experimental Laboratory ◽  
Local Protein

Central Java is popular for soybean tofu and one of its diversification product is ‘tahu bakso’which is<br />very famous in Central Java especially Semarang. ‘Tahu bakso’ generally produce from beef, whereas nile<br />fish meat has a potential to be used as raw material to replace beef in producing ‘tahu bakso’. Utilisation<br />of nile fish meat can support fish protein intake by community as well as for promoting local protein<br />resource. The aims of this study was to observe the effect of different concentration of fish meat on physical,<br />chemical and sensory characteristic of ‘tahu bakso’. The parameters evaluated include texture (hardness,<br />deformation, gel strength), proximate (protein, fat, carbohydrate, ash and water), and sensory (hedonic<br />test) of the product resulted. This study used experimental laboratory by using Completely Randomised<br />Design with Anova (p&lt;0,05). The treatments covers: different concentration of fish meat (30%, 40% and<br />50%). Treatment with highest hardness and gel strength was performed by 30% concentration with the<br />value of 530.88 g.cm. Whereas treatment 40% concentration has highest deformation of 23.47 mm, and has<br />no significant different to 50% concentration. Based on analysis of variance, different concentration of fishmeat gave significant effect on characteristic of proximate especially on protein and fat (p&lt;0.05) but has no<br />significant effect on water and ash content (p&gt;0.05). Different concentration of fish meat has no significant<br />effect on hedonic of ‘tahu bakso’ resulted. Overall ‘tahu bakso’ made from nile meat with 50% concentration<br />is considered to be the most preferred by panelist, but the overall value has no significant different to 40%<br />concentration. Therefore, it is concluded that concentration 40% of fish meat is considered as the best<br />treatment for producing ‘tahu bakso’ with respect to texture, nutrition, sensory attributes.<br />‘y

scholarly journals Characterization of Activated Carbon from Industrial Solid Waste Agar with a Different Activator Concentrations

Omni-Akuatika ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 77
Author(s):  
Khuril Zaqyyah ◽  
Sri Subekti ◽  
Mirni Lamid
Keyword(s):  
Activated Carbon ◽  
Carbon Content ◽  
Solid Waste ◽  
Active Carbon ◽  
Liquid Waste ◽  
Ash Content ◽  
Raw Material ◽  
Activator Concentration ◽  
Industrial Solid Waste ◽  
Randomized Design

Production of seaweed processing generates a huge amount of waste, either waste solid or liquid waste. For solid waste contains a lot of organic carbon derived from cellulose or hemicellulose. Therefore, the solid waste that has the potential as a raw material of activated carbon. This study aims to determine the characteristics of the activated carbon produced from solid waste agar and determine the optimal concentration of activator that produced the best characteristics of the activated carbon. The treatment used is a different activator concentration which is designed using completely randomized design (CRD) with five treatments and four replications. The results showed the five treatments are significant differences in the characteristics of the ash and pure active carbon content. This study shows that the manufacture of activated carbon industrial solid waste agar with a different activator concentration influence on the characteristics of the active carbon with ash content parameter and pure active carbon content. The concentration of activator that can provide the highest value of pure activated carbon is in P5 with a concentration of 6 M. Based on this study are advised to do further research on how to lower the ash content of the activated carbon from solid waste agar.

scholarly journals Influence of surface modification by sulfuric acid on coking coal's adsorption of coking wastewater

2017 ◽  
Vol 76 (3) ◽  
pp. 555-566 ◽  
Author(s):  
Lihui Gao ◽  
Hong Wen ◽  
Quanzhi Tian ◽  
Yongtian Wang ◽  
Guosheng Li
Keyword(s):  
Sulfuric Acid ◽  
Zeta Potential ◽  
Surface Area ◽  
Pore Volume ◽  
Ash Content ◽  
Raw Material ◽  
Acid Activation ◽  
Coking Wastewater ◽  
Hydrophobic Properties ◽  
Coking Coal

Coking coal, the raw material of a coke plant, was applied to the adsorption of coking wastewater. In this study, coking coal was directly treated with sulfuric acid to improve its surface properties and adsorption ability. Acid treatment was carried out at various concentrations, by varying from 0.001 to 1 mol/L. The samples were characterized by ash content analysis, scanning electron microscope (SEM), N2 adsorption-desorption analysis, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), wettability analysis, and zeta potential analysis. These results demonstrated that H+ could react with inorganic minerals, which resulted in a significant variation of the chemical composition and the structure of coal surface. Furthermore, both the ash content and the surface content of O = C-O, C = O and C-O groups declined gradually as the concentration of sulfuric acid increased, while the surface area and pore volume of micropore, the lipophilic and hydrophobic properties, and zeta potential magnitude increased, resulting in enhanced hydrophobic and Van der Waals' forces between the fine coal and organic pollutants. Characterization modification showed a better performance in adsorption, the removal rate enhanced from 23% to 42% after treated by 1 mol/L sulfuric acid. It was concluded that the acid activation modified the lipophilic and hydrophobic properties, the surface charge properties, surface area and pore volume, the content of oxygen functional groups, all of which could be potentially useful in wastewater adsorption.

Thermal Energy and Ignition Propagation Estimates of Watermelon Peel Briquettes

2020 ◽  
Vol 46 (1) ◽  
pp. 1-4
Author(s):  
A.R. Ige ◽  
C.M. Elinge ◽  
L.G. Hassan ◽  
D.R. Akinkuotu ◽  
O.J. Ajakaye
Keyword(s):  
Energy Source ◽  
Rural Communities ◽  
Thermal Energy ◽  
Gum Arabic ◽  
Calorific Value ◽  
Cassava Starch ◽  
Ash Content ◽  
Raw Material ◽  
Alternative Source ◽  
Propagation Properties

The idea of utilizing biomass as renewable energy source is appealing due to its accessibility, cheapness and ecological friendliness. Briquette is an alternative source of fuel to firewood and charcoal which can avoid some environmental problems that can be generated from their use. Briquettes were produced from watermelon peels with cassava starch and gum Arabic as binders, the two binders were chosen because they are naturally abundant in rural communities. The briquettes produced have favourable thermal and ignition propagation properties which are contributed by the initial raw material (watermelon peels) properties such as density, calorific value, resistance to humidity, moisture content, ash content etc. It can be concluded that the higher the ignition propagation the higher the thermal energy of the briquettes.

Sign in / Sign up

Export Citation Format

Share Document