PENGARUH PERENDAMAN LARUTAN SULFIT DAN PENGASAPAN BELERANG TERHADAP MUTU KOPRA PUTIH

2019 ◽  
Author(s):  
mulono apriyanto bin sugeng rijanto

In general, copra farmers in Riau Province are drying by direct smoking or drying by fire. In this drying, copra produced under the specified quality standards, with the characteristics: brown, smelling of smoke, water content is quite high around 15-22% so that microorganisms are easily attacked. In this research, copra drying technology was improved by using sunlight as an energy source, in the form of a drying tuner with a roof and walls made of plastic sheeting (blue).Dryers are assembled and tried in Teluk Dalam Village, Kuala Indragiri Subdistrict, Indragiri Hilir Regency, Riau Province in October-December 2018. The use of sulfur powder seems to improve the quality of copra produced and is more economical compared to the use of coconut shells as a fuel source. The addition of sulfur powder is increasingly proven the quality of white copra.

2019 ◽  
Author(s):  
mulono apriyanto bin sugeng rijanto

In general, copra farmers in Jambi Province are drying by direct smoking or drying by fire. In this drying, copra produced under the specified quality standards, with the characteristics: brown, smelling of smoke, water content is quite high around 15-22% so that microorganisms are easily attacked. In this research, copra drying technology was improved by using sunlight as an energy source, in the form of a drying tuner with a roof and walls made of plastic sheeting (blue).Dryers are assembled and tried in Teluk Dalam Village, Kuala Indragiri Subdistrict, Indragiri Hilir Regency, Riau Province in October-December 2018. The use of sulfur powder seems to improve the quality of copra produced and is more economical compared to the use of coconut shells as a fuel source. The addition of sulfur powder is increasingly proven the quality of white copra.


Author(s):  
Vivin Setiani ◽  
Adhi Setiawan ◽  
Mey Rohma Dhani ◽  
Risya Dwi Maulidya

Fossil fuels are a non-renewable energy source and their existence will be depleted. An alternative is needed that can reduce fossil fuels by using biomass. Biomass waste in the form of bagasse and coconut shell can be used as an alternative fuel in the form of biobriquette. This study aims to analyze the quality value of briquettes from the proximate test of the composition of bagasse and coconut shell produced with briquette quality standards that refer to SNI 01-6235-2000 about wood charcoal briquettes. The variables in this study consisted of five variables. The variables in this study were mass ratio coconut shells to bagasse were 90%: 10%, 80%: 20%, 70%; 30%, 60%: 40% and 50%: 50% respectively. The results of the test of water content, ash content, and volatile matter of the best quality briquettes of five variables were 90% coconut shell and 10% bagasse.


2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Muhammad Busyairi ◽  
Aufar Za’im Muttaqin ◽  
Ika Meicahyanti ◽  
Saryadi Saryadi

This study aimed to determine the effect of reaction time and catalyst variations on the quality of biodiesel according to SNI 7182: 2015 determine the best reaction time and catalyst variations on the yield parameters, water content, viscosity, density, flash point, and methyl ester levels of biodiesel produced. Based on the research, the results show that the quality of biodiesel obtained for each parameter meets the SNI 7182: 2015 quality standards except for water content parameters that still exceed the quality standard limits. The best quality of biodiesel is shown in the variation of the reaction time of 120 minutes with KOH catalyst with a yield of 77.95%, moisture content of 0.2673%, density of 0.8669 gr/ml, the viscosity of 5.15 CST, flash point 174°C and levels of methyl esters 98.42%. Biodiesel from used cooking oil can be applied as renewable energy that is more environmentally efficient.<h1 style="margin: 0cm; margin-bottom: .0001pt; text-indent: 0cm; mso-list: none; tab-stops: 36.0pt;"><span style="mso-bidi-font-size: 11.0pt; text-transform: none; font-weight: normal; mso-bidi-font-weight: bold; mso-bidi-font-style: italic;" lang="EN-US">This study aimed to determine the effect of reaction time and catalyst variations on the quality of biodiesel according to SNI 7182: 2015 determine the best reaction time and catalyst variations on the yield parameters, water content, viscosity, density, flash point, and methyl ester levels of biodiesel produced. Based on the research, the results show that the quality of biodiesel obtained for each parameter meets the SNI 7182: 2015 quality standards except for water content parameters that still exceed the quality standard limits. The best quality of biodiesel is shown in the variation of the reaction time of 120 minutes with KOH catalyst with a yield of 77.95%, moisture content of 0.2673%, density of 0.8669 gr/ml, the viscosity of 5.15 CST, flash point 174°C and levels of methyl esters 98.42%. Biodiesel from used cooking oil can be applied as renewable energy that is more environmentally efficient.</span></h1>


2019 ◽  
Vol 9 (6) ◽  
pp. 1171 ◽  
Author(s):  
Karine Arrhenius ◽  
Andreas Fischer ◽  
Oliver Büker

Biogas is a renewable energy source with many different production pathways and numerous excellent opportunities for use; for example, as vehicle fuel after upgrading (biomethane). Reliable analytical methodologies for assessing the quality of the gas are critical for ensuring that the gas can be used technically and safely. An essential part of any procedure aimed at determining the quality is the sampling and transfer to the laboratory. Sampling bags and sorbent tubes are widely used for collecting biogas. In this study, we have combined these two methods, i.e., sampling in a gas bag before subsequent sampling onto tubes in order to demonstrate that this alternative can help eliminate the disadvantages associated with the two methods whilst combining their advantages; with expected longer storage stability as well as easier sampling and transport. The results of the study show that two parameters need to be taken into account when transferring gas from a bag on to an adsorbent; the water content of the gas and the flow rate used during transfer of the gas on to the adsorbent.


2019 ◽  
Vol 23 (5 Part A) ◽  
pp. 2667-2675 ◽  
Author(s):  
Tianbao Ren ◽  
Xiaojuan Liu ◽  
Chensheng Xu ◽  
Huilin Feng ◽  
Xianjie Cai ◽  
...  

Biomass moulding fuel is an environmentally friendly and renewable energy source. We studied an independently-developed automatic flue-cured tobacco furnace, employing a biomass fuel source and studied the effect of biomass moulding fuel onbacco flue curing. We found that 1 kg of dried tobacco required 1.2 kg of biomass moulding fuel (heating value = 3550 kcal per kg). The energy input cost was 1.43 RMB** (fuel and electricity) and the labor cost was reduced by 75%, a reduction of 18.6% compared to the cost of burning coal. With respect to the environmental impact, the average emission concentration of smoke in the exhaust gas from the furnace was 16.2 mg/m3, SO2 was 13.6 mg/m3, and NOx was 2.3 mg/m3. Ringelmann blackness was less than 1. Compared to burning coal, all emissions were very low, demonstrating that the biomass moulding fuel furnace saved energy and reduced emissions compared to coal. In addition, the quality of cured tobacco and economic index were significantly improved.


2019 ◽  
Vol 4 (02) ◽  
pp. 110-120
Author(s):  
Bagus Setyawan ◽  
Rosiana Ulfa

Plantation wastes such as coffee skins and coconut shells in Indonesia have not been utilized optimally. Waste can be utilized for the manufacture of charcoal briquettes as an alternative fuel. The purpose of this study was to determine the quality of charcoal briquettes from biomass waste mixed with coffee skin and coconut shell with tapioca flour adhesive. This research is a type of laboratory experimental research. The study used a Completely Randomized Design (CRD) with 3 replications. Testing the quality of charcoal briquettes includes tests of water content, ash content, combustion rate, and heating value. The research data will be compared with the International charcoal briquette quality standards and the Indonesian National Standard (INS). The results showed that the water content and an ash content of the charcoal briquettes were still below the international charcoal briquette quality standards and INS. However, the heating value of this charcoal briquette is surpass the INS quality standard. The conclusion of the research is the quality of the charcoal briquettes from the waste of biomass of coffee husk and coconut shell with tapioca flour recorder in the aspects of water content and ash content is still below the international quality standard and SNI, but in the aspect of the heat value of the charcoal briquette the research results are above the SNI quality standard.


2020 ◽  
Vol 25 (1) ◽  
pp. 1
Author(s):  
Ruri Wijayanti ◽  
Malse Anggia

The caffeine, antioxidant levels, and the quality of coffee powder produced by some small and medium industries in Tanah Datar District were determined in this study. The results of this study are expected to be a reference for the public regarding the caffeine and antioxidants content, as well as the quality of the coffee powder. Samples were obtained from 3 sub-districts in Tanah Datar District, including Salimpauang District, Sungai Tarab District, and Limo Kaum District. The purposive sampling method was used in this study by considering the most famous coffee powder products and well-liked by the public. Analysis of the characteristics of the coffee powder included the caffeine and antioxidant levels, water content, and ash content, as well as organoleptic tests. The results showed that the caffeine content of the coffee powder of most SMI (4 from 6 SMI sample) in the Tanah Datar Regency met the quality standards of SNI.  The content of antioxidant was ranged from 32,79 to 39,53%. Likewise, the water (7%)  and ash (5%) content have fulfilled the SNI 01-3542-2004 quality standards. 


2021 ◽  
Vol 886 (1) ◽  
pp. 012132
Author(s):  
Budiaman ◽  
Iswara Gautama ◽  
Baharuddin ◽  
Yeyen Herawati

Abstract This study aims to determine the effectiveness of a portable honey thickener machine on several qualities of Trigona incisa bee honey. The research was conducted in Tamalanrea, Makassar City, South Sulawesi, and the process of testing the quality of honey was carried out at the Makassar Health Laboratory Center and PT. SUCOFINDO Makassar. The data analysis used is quantitative by calculating each of the observed variables, then the data obtained from each variable is compared with the SNI Standard 01-3545:2013. The variables observed in this study were Hydroxymethylfurfural (HMF), water content, reducing sugars (glucose and fructose), Sucrose, Acidity (ml NaOH 1 N/kg), water insoluble solids, and ash content. The results showed that the portable honey thickener machine was very effective in improving the quality of Trigona incisa honey after being added to the portable honey thickener machine when compared to SNI 2018, but when compared with the SNI 01-3545-2013 standard, some of the honey quality variables did not meet the standards. Honey quality standards are water content, reducing sugars (Glucose and Fructose), acidity, insoluble solids in water, and ash content, while those that meet SNI Standard 01-3545-2013 are reducing sugars Glucose and Sucrose.


2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Eliya Malika Oktavia ◽  
Darjati . ◽  
Mamik .

Dusun Sugihan has thewidest area of paddy field in Desa Sumberejo with post-harvest rice straw of 12 tons/ha.Those rice straw have not used optimally.Ifleft untreated, it can spoil the aesthetics of the environment, generates odor and becomes a den of disease vectors. The purpose of the present study was to determine the fermentation process of composts and the quality of composts produced with regard to temperature, humidity, pH, water content, C/N ratio and levels of Pb in composts.The present study was a pre-experiment usinga statistical group comparison. Data were analyzed descriptively in order to describe the results of the field inspection and laboratory testing in accordance with SNI 19-7030-2004 on Compost Quality Standards. Results of this 8-wk study showed that the fastest composting time was for the compost with chicken manure was the activator at a dose of 30% for 3 weeks.In terms of compost quality, which includes temperature, pH, humidity, water content and levels of Pb,all of the composts fulfilled the requirements. However, with regard to C/N ratio,those composts with activator of 10% cow manure,10% goat manure and no manure did not fulfill the requirements with a C/N ratio of 27.36, 23.64 and 26.75, respectively. Therefore, it is recommended to make composts using manure as an activatorat a dose ≥20% in order for fulfillment of C/N ratio and shorter composting time. Keywords: Compost fermentation, rice straw, manure as activator


2020 ◽  
Vol 6 (1) ◽  
pp. 039
Author(s):  
Trie Omitha Purba ◽  
Suparmi Suparmi ◽  
Dahlia Dahlia

The study aimed to determine the effect of rebon shirmp (mysis relicta) protein hydrolisate fortification to the sago noodles and to observe the characteristics of the sago noodles produced. The research was carried on in February – April 2019 in the  Laboratory of Fish Processing Technology, Integrated Laboratories, and the Fisheries and Marine Chemistry Laboratories at the Universitas Riau. The method used was the experimental method, designedas a non-factorial complete randomized design. The treatment conducted was addingof rebon shrimp protein hydrolysate at 4 level concentrations (0%, 5%, 10% dan 15%). The variables assessed were the quality of organoleptic (appearance, texture, odor, flavor) and the proximate composition. The results showed that the proteinhydrolysate of rebon shrimp at concentration of 15% was the best treatment and in accordance to the quality standards of dried noodles (SNI 01-2974-1996), indicated bythe highest organoleptic qualityof the dried noodles produced, including: the appearance that was brown, less attractive, whole, less neat; the texture that was dry and compact; the aroma that was quite fragrant, spesific rebon shrimp; and the taste that was quite tasty and shrimp flavored. The proximate composition ofthe best product was presented by the content of moisture, ash, fat, protein, and carbohydrate at 7.55%,1.02%, 0.17%, 16.76%, and 74.49%, respectively.Keywords: Hydrolysate protein, rebon shrimp, sago noodles


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