scholarly journals Uji Proximate Tepung Jagung dari Limbah Tongkol Jagung Pulut secara Fermentasi

2021 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Mirnawati Mirnawati ◽  
Rizka Octavia
Keyword(s):  
Moisture Content ◽  
Agricultural Waste ◽  
Gravimetric Method ◽  
Corn Flour ◽  
South Sulawesi ◽  
A Value ◽  
Waste Production ◽  
Waxy Corn

Waxy corn is widely developed in several areas in South Sulawesi. From year to year the productivity of pulut corn has increased, this also shows that agricultural waste production has also increased. The agricultural waste produced by corn is cobs. The purpose of this study was to determine the processing of pulut corn cobs into corn flour and to determine the characterization of the quality of corn flour, especially the proximate test based on SNI standards. The research method is the gravimetric method, the results of the corn flour test show that the proximate content (moisture content, ash content, and protein content) with successive values of 0.07%, 17.49%, 1.9 x 106 has met the standard standards. Indonesian National (SNI) (SNI 01-3751-2009), except for moisture content with a value of 14.32% which indicates that corn flour has a short shelf life. Waxy corn is widely developed in several areas in South Sulawesi. Pulut corn contains 100% amylopectin which provides a sweet, fluffier taste and good texture.

scholarly journals Analysis of the Quality of Mixed Coconut Shell Waste Briquettes with Various Biomass Additives as Alternative Fuels

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Yusraida Khairani Dalimunthe ◽  
Sugiatmo Kasmungin ◽  
Listiana Satiawati ◽  
Thariq Madani ◽  
Teuku Ananda Rizky
Keyword(s):  
Moisture Content ◽  
Calorific Value ◽  
Volatile Matter ◽  
Matter Content ◽  
Ash Content ◽  
Coconut Shell ◽  
Bamboo Charcoal ◽  
A Value ◽  
Shell Waste

The purpose of this study was to see the best quality of briquettes from the main ingredient of coconut shell waste<br />with various biomass additives to see the calorific value, moisture content, ash content, and volatile matter<br />content of the biomass mixture. Furthermore, further research will be carried out specifically to see the quality of<br />briquettes from a mixture of coconut shell waste and sawdust. The method used in this research is to conduct a<br />literature study of various literature related to briquettes from coconut shell waste mixed with various additives<br />specifically and then look at the best quality briquettes produced from these various pieces of literature. As for<br />what is determined as the control variable of this study is coconut shell waste and as an independent variable,<br />namely coffee skin waste, rice husks, water hyacinth, Bintaro fruit, segon wood sawdust, coconut husk, durian<br />skin, bamboo charcoal, areca nut skin, and leather waste. sago with a certain composition. Furthermore, this<br />paper also describes the stages of making briquettes from coconut shell waste and sawdust for further testing of<br />the calorific value, moisture content, ash content, volatile matter content on a laboratory scale for further<br />research. From various literatures, it was found that the highest calorific value was obtained from a mixture of<br />coconut shell waste and bamboo charcoal with a value of 7110.7288 cal / gr and the lowest calorific value was<br />obtained from a mixture of coconut shell waste and sago shell waste with a value of 114 cal / gr, then for the value<br />The highest water content was obtained from a mixture of coconut shell waste and rice husk with a value of<br />37.70% and the lowest water content value was obtained from a mixture of coconut shell waste 3.80%, then for the<br />highest ash content value was obtained from a mixture of coconut shell waste and coffee skin with a value of<br />20.862% and for the lowest ash content value obtained from a mixture of coconut shell and Bintaro fruit waste,<br />namely 2%, and for the highest volatile matter content value obtained from a mixture of coconut shell and coconut<br />husk waste with a value of 33.45% and for the value of volatile matter levels The lowest was obtained from a<br />mixture of coconut shell waste and sago skin waste with a value of 33 , 45%.

scholarly journals Thermophysical parameters of corn and wheat flour

2012 ◽  
Vol 49 (No. 4) ◽  
pp. 157-160 ◽  
Author(s):  
M. Božiková
Keyword(s):  
Moisture Content ◽  
Wheat Flour ◽  
Moisture Transfer ◽  
Raw Materials ◽  
Wheat Grain ◽  
Corn Flour ◽  
Specific Kind ◽  
Physiological Processes ◽  
Macroscopic Structure

This article deals with thermophysical properties of nutritive raw materials particularly of corn and wheat granary mass. It is necessary to know thermophysical performance of granary mass for protection of quality of technological process by processing to final products. Granary mass consist of grains complex of specific kind. It is non uniform material in microscopic and macroscopic structure. There are enacted biophysical and physiological processes. Heat transfer can not be isolated by solid transfer and heat &ndash; moisture transfer. It means that specification of granary mass and granary fragments is difficult to determine. We researched thermal properties of fragments of corn and wheat grain, concretely corn and wheat flour. In the first series of measurements we measured relations of thermal conductivity&nbsp; to the moisture content&nbsp; in range (2&divide;18) % for two different samples &ndash; corn flour and wheat flour. Function f ( to bulk density <sub>S</sub>, samples had identical moisture content 6.5%. For size of corn and wheat grains in range (0.063&divide;0.5) mm this is polynomical function. Measured results are corresponding with results at present literature (Ginzburg et al. 1985).

Characterization of Various Types Coal Using Capacitance Measurement Technique

2015 ◽  
Vol 1112 ◽  
pp. 506-509 ◽  
Author(s):  
Didied Haryono ◽  
Desiani ◽  
Mahfudz Al Huda ◽  
Warsito P. Taruno ◽  
Marlin R. Baidillah ◽  
...  
Keyword(s):  
Moisture Content ◽  
Capacitive Sensor ◽  
Volatile Matter ◽  
Proximate Analysis ◽  
Capacitance Measurement ◽  
Rank One ◽  
The Difference ◽  
Signal Characterization

Each type of coal has different composition and properties, which determine the coal rank. One of the new methods for determining the quality of coal is by measuring its capacitance. It is formerly known that the difference in the moisture content of coal can be determined from the difference in its dielectric properties. The purpose of this paper is to characterize the various types of coal based on capacitance measurement. The samples used are Lignite, Sub-bituminous, Bituminous, and Anthracite. The proximate analysis testing was done to determine the content of moisture, volatile matter, ash, and fixed carbon. Capacitance value is measured using 2-channel data acquisition system (DAS) and parallel plate capacitive sensor at frequency 2.5 MHz. The results shows that the capacitance values of each type of coal are different. The capacitance value is affected by moisture content of coal since the moisture content and capacitance value have a linear correlation. And also, the signal characterization using frequency from 1 kHz to 5 MHz was performed to verify whether the frequency used in the DAS is able to characterize coal types.

scholarly journals GUAR GUM ADDITION ON PHYSICAL CHARACTERISTICS OF EXTRUDED DRY CORN NOODLE FROM MIXTURE OF WET AND DRY CORN FLOURS

2020 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Aminullah Aminullah ◽  
Tjahja Muhandri ◽  
Subarna Subarna
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Shelf Life ◽  
Guar Gum ◽  
Physical Characteristics ◽  
Cooking Loss ◽  
Drying Process ◽  
Corn Flour ◽  
Physical Quality

The drying process of corn noodles was an effort to increase the shelf life and it was a form of noodles diversification. The objective of this research was to study and analyze the effect of guar gum addition on the physical quality of the extruded dry corn noodle made from a mixture of wet and dry corn flour. Manufacturing dry corn noodles was conducted using wet corn noodles from a mixture of wet and dry corn flour, which was then dried in a tray dryer at a temperature of 60-70 °C for 1 - 1.5 hours. The treatments used were a combination of alum levels of 0.01%; moisture content of 80% (dry base); and guar gum concentration of 0%, 1%, and 2%. Physical properties of dry corn noodles included rehydration time, hardness, adhesiveness, suppleness, elongation, and cooking loss. The results showed that the optimum rehydration time for dry corn noodles was about 9 minutes. The addition of guar gum to the physical qualities of dry corn noodles tended not to be significant statistically, but as a score, an increase in guar gum levels tended to increase the elongation of dry corn noodles. While, increasing levels of guar gum tended to reduce the stickiness and cooking loss levels of them.

scholarly journals Influence of Sand Casting Waste as Substitutor of Quartz Sand in Mortar

Rekayasa ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 416-420
Author(s):  
Fandi Angga Prasetya ◽  
Niswatun Faria ◽  
Tri Eddy Susanto ◽  
Rizqi Ni’amul Firdaus ◽  
Yaski Achmad Zamzami
Keyword(s):  
Compressive Strength ◽  
Moisture Content ◽  
Quartz Sand ◽  
Steel Industry ◽  
Sand Casting ◽  
Optimum Result ◽  
A Value ◽  
Initial Characterization ◽  
High Silica

Sand casting waste has the potential to replace quartz sand in mortar manufacture because it contains high silica. This study uses sand casting waste from the steel industry in Gresik, Indonesia to observe how it affects the quality of the mortar. Initial characterization were carried out to determine the properties of the material, including; magnetic test which results are not attracted by magnets, moisture content test with a value of 0.328%, XRD test to determine the crystallinity content which results contain 99.52% Silica Quartz, and XRF test to determine the content of the compound in which results are 81.25% Silica dominant. Then observations were made by making mortar with the replacement of quartz sand by sand casting with variations of 0% wt, 25% wt, 50% wt, and 100% wt and then tested its compressive strength at 3 days, 7 days, and 28 days. Based on the research that has been done, the optimum result using sand casting is at 25% wt with a compressive strength of 251.15 kgf/cm2 at 28 days of age which is higher than the standard.

scholarly journals Characterization of Roasted Coffee Aroma by Optimizing Roaster Parameters

2018 ◽  
Vol 8 (1) ◽  
pp. 23-29
Author(s):  
Firman Ridwan ◽  
Roni Novison
Keyword(s):  
Moisture Content ◽  
Incubation Time ◽  
Rotational Speed ◽  
Signal To Noise Ratio ◽  
Signal To Noise ◽  
Roasted Coffee ◽  
Minimum Number ◽  
Noise Ratio

This study was aimed to improve the quality of aroma of roasted coffee by using Taguchi's design as experimental technique. The roaster parameters evaluated were temperature, incubation time, moisture content and cylinder rotational speed. An orthogonal array L9, signal to noise ratio and ANOVA were employed to investigate the influence of the roaster parameters. The results showed that the optimal roasted coffee aroma was produced at a temperature of 170◦C, incubation time of 14 minutes, moisture content of 6% (v/w) and cylinder rotational speed of 50 rpm. The most to less significant roasting parameters as observed in this study were as follows: temperature, incubation time, moisture content and cylinder rotational speed. Furthermore, the results showed that the Taguchi design was better than the full experimental design in solving experiments with a minimum number. Keywords: ANOVA, Coffee roaster, Roasted coffee aroma, Signal to noise ratio, Taguchi technique

scholarly journals Effect of Fermentation Time and Cassava Varieties on Water Content and the Yield of Starch from Modified Cassava Flour (MOCAF)

2018 ◽  
Vol 5 (2) ◽  
pp. 71 ◽  
Author(s):  
Nurud Diniyah ◽  
Achmad Subagio ◽  
Riri Nur Lutfian Sari ◽  
Pradiska Gita Vindy ◽  
Alif Ainur Rofiah
Keyword(s):  
Moisture Content ◽  
Block Design ◽  
Food Product ◽  
Average Moisture Content ◽  
Fermentation Time ◽  
Cassava Flour ◽  
Randomized Block Design ◽  
Cassava Varieties

MOCAF (modified cassava flour) is a high potential food product. This product can be used to replace wheat flour in the manufacture of various food products. However, there is no characterization of starch properties of MOCAF. The efforts to improve the quality of starch from cassava starch by fermentation process using a combination of enzymes and microbes  from Lactic acid bacteria.The purpose of this research is to determine the influence of fermentation time to yield and moisture content. Single factor randomized block design with 3 (three) levels i.e fermentation time (0, 12, and 24 hours) with two group namely varieties of cassava Cimanggu and Kaspro. Cimanggu and Kaspro cassava varieties were used to compare the properties of starch due to different fermentation time (0, 12 and 24 hours) with triplicate. The results showed the yield and moisture content were affected by fermentation time. Average moisture content ranged from 13.3 to 13.8% with the starch yield is 38-59%. Application of starch MOCAF can be used for food, cosmetics, and medicines industry.Keywords : modified starch, cassava, fermentation, yield

scholarly journals Moisture Content Impact on Properties of Briquette Produced from Rice Husk Waste

2021 ◽  
Vol 13 (6) ◽  
pp. 3069 ◽  
Author(s):  
Anwar Ameen Hezam Saeed ◽  
Noorfidza Yub Harun ◽  
Muhammad Roil Bilad ◽  
Muhammad T. Afzal ◽  
Ashak Mahmud Parvez ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Moisture Content ◽  
Surface Morphology ◽  
Rice Husk ◽  
Alternative Energy ◽  
Agricultural Waste ◽  
Calorific Value ◽  
Proximate Analysis ◽  
Physical Density

An agricultural waste-based source of energy in the form of briquettes from rice husk has emerged as an alternative energy source. However, rice husk-based briquette has a low bulk density and moisture content, resulting in low durability. This study investigated the effect of initial moisture contents of 12%, 14%, and 16% of rice husk-based briquettes blended with 10 wt% of kraft lignin on their chemical and physical characteristics. The briquetting was done using a hand push manual die compressor. The briquette properties were evaluated by performing chemical (ultimate and proximate analysis, thermogravimetric analysis), physical (density, durability, compressive strength, and surface morphology) analyses. The durability values of all briquette samples were above 95%, meeting the standard with good compressive strength, surface morphology, and acceptable density range. The briquette made from the blend with 14% moisture content showed the highest calorific value of 17.688 MJ kg−1, thanks to its desirable morphology and good porosity range, which facilitates the transport of air for combustion. Overall, this study proved the approach of enhancing the quality of briquettes from rice husk by controlling the moisture content.

scholarly journals Improving the Quality of Bio-Oil Produced from Rice Husk Pyrolysis by Extraction of its Phenolic Compounds

2020 ◽  
Vol 8 (2) ◽  
pp. 90-100 ◽  
Author(s):  
Dewi Selvia Fardhyanti ◽  
Achmad Chafidz ◽  
Bayu Triwibowo ◽  
Haniif Prasetiawan ◽  
Novia Noor Cahyani ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Distribution Coefficient ◽  
Phenolic Compound ◽  
Rice Husk ◽  
Agricultural Waste ◽  
Raw Material ◽  
Effect Of Temperature ◽  
Bio Oil

Rice husk is an agricultural waste which contains 50% cellulose, 25%-30% lignin and 15%-20% silica. It can be used as raw material of bio-oil. Bio-oil is liquid which produced by pyrolysis process. Bio-oil can be produced from the rice husk at 773 and 873 K. The main component of Bio-oil from rice husk pyrolysis at 773 and 873 K is phenolic compounds about 47.98% and 62.65%, respectively. It causes corrosive, low heating value, high acidity, high viscosity and unstable that causing an engine damage. The presence of phenolic compound decreases the quality of bio-oil. Therefore, it needs a process such as liquid-liquid extraction to reduce the phenolic compound using 80% methanol and 80% chloroform as a solvent. The extract and raffinate phase were analyzed using UV-Vis spectrophotometer. The aim of this research determine the effect of temperature pyrolysis for the characterization of bio-oil, the stirring speed and the temperature of the extraction for the distribution coefficient and the yield of phenolic compound. The results showed that the characterization of bio-oil produced from rice husk pyrolysis at 773 and 873 K are densities 1,040 and 1,042 Kg/m3; viscosities 9.3488 and 9.5007 cSt; acid numbers 46.75 and 52.45 mg KOH/g; pH 2.5 and 3; flash points 426 and 423 K and heating values 3.229 and 3.339 MJ/kg, respectively. The highest distribution coefficient and yield were obtained at 323 K and a stirring speed of 250 rpm. The distribution coefficient of bio-oil produced by pyrolysis at 773 and 873 K is 1.504, and 1.528, respectively. The yields of bio-oil produced by pyrolysis at 773 and 873 K are 58.885%, and 48.429%, respectively.  

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