Pengaruh Ukuran Partikel, Perbandingan Jumlah Pelarut dan Waktu Maserasi terhadap Perolehan Rendemen Aquilaria Malaccensis Lam.

Author(s):  
Miftahurrahmah Miftahurrahmah ◽  
Hasnah Ulia ◽  
Harmiwati N. H

Aquilaria Malaccensis Lam. is one of the most popular plants contains essential oil, both of them used by pharmaceutical and also cosmetic industry. The plants used in this study came from Jambi, Indonesia which is known, It’s one of the best quality agarwood in the world. This study aims to determine the best conditions for the yield so that it can be produced on an industrial scale. The study reviewed the effect of yield based on size of particles, ratio of solvent, and the operating time, maceration. The research was carried out in three steps. The first, raw material preparation, fermentation and maceration, and then evaporation. Preparation of raw materials is prepared in three variables, 2-5 cm, ±2cm, and size <40 mesh. Methanol is the solvent that will be used in multiple ratio of solvent to agarwood, its 1:7, 1:9, and 1:11(gr/ml). In addition, the maceration time was varied for each sample, 1 day, 2 days, and 3 days. Based on the research variables, obtained essential oil of agarwood dark brown in colour, with a special fragrance of agarwood. Based on the difference in particle size, it is known that size <40 mesh, yield is 3.16%, while for the larger size, 2-5 cm, the yield is 3.12%. In the variable ratio of the amount of solvent used, it is known that 1:9 (gr/ml) is the best point for yield. At maceration step known that 2-3 days, it doesn’t gives a significant change, 2.12 g for 3 days, and 1.92 g for 2 days.

2019 ◽  
pp. 18-20
Author(s):  
L. Chisnicean

Ocimum basilicum L. (common basil) is one of the promising spicy - aromatic and medicinal plants. It is used both in traditional and traditional medicine as an expectorant, anti-inflammatory agent, gastritis, colitis, nephritis, etc. Numerous scientific studies have established that O. basilicum L. essential oil in experimental practice has good antioxidant, antimicrobial, and cytostatic activity. The modern spice market requires a growing variety of forms and varieties of basil for consumption as seasoning and green vegetables. An important place is occupied by raw materials (leaf and herb of basil), in recipes of medicinal and forest teas. Essential oil is used both in the food and in the perfumery – cosmetic industry and pharmaceuticals. Perspectivity in the spice market and its multiple medicinal properties were the reason for the continuation of work on the improvement and creation of new promising varieties of basil, of various uses. A working collection was created, consisting of 34 varieties, forms and nursery of crosses and breeding selections, numbering from 40 to 100 units, on average by year. Five varieties of basil of diverse directions were created and registered in the State Register, both for consumption as seasoning in fresh and dry form, for flavoring edible salt, vinegar and oil, and also as a medicinal raw material for teas. Brief results obtained over 17 years а presented in this paper.


Author(s):  
SAFITRI NURHIDAYATI ◽  
RIZKI AMELYA SYAM

This study aims to analyze whether the difference that occurs in the cost of raw materials, direct labor, and factory overhead costs between the standard costs and the actual costs in PLTU LATI is a difference that is favorable or unfavorable. Data collection techniques with field research and library research. The analytical tool used is the analysis of the difference in raw material costs, the difference in direct labor costs and the difference in factory overhead costs. The hypothesis in this study is that the difference allegedly occurs in the cost of raw materials, direct labor costs, and factory overhead costs at PT Indo Pusaka Berau Tanjung Redeb is a favorable difference. The results showed that the difference in the cost of producing MWh electricity at PT Indo Pusaka Berau Tanjung Redeb in 2018, namely the difference in the price of raw material costs Rp. 548,029.80, - is favorable, the difference in quantity of raw materials is Rp. 957,216,602, - is (favorable) , the difference in direct labor costs Rp 2,602,642,084, - is (unfavorable), and the difference in factory overhead costs Rp 8,807,051,422, - is (favorable) This shows that the difference in the overall production cost budget is favorable or profitable. This beneficial difference shows that the company is really able to reduce production costs optimally in 2018.  


2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Dwi Septiyana Sari ◽  
◽  
Susanti Sundari

Abstract This study discusses the use of fly ash waste from coal burning on the manufacture of PCC (Portland composite cement) at PT. XYZ Lampung. The purpose of this research is to look at the technical studies and the efficiency of raw materials in the use of fly ash in cement making, in this case PCC cement (Portland Composite Cement). The steps taken in analyzing the data in this study were viewed from a technical aspect by means of a physical test, namely the cement compressive strength test at the age of 3 days, 7 days, and 28 days using the Compression Testing Machine. This test was conducted to see the comparison of the compressive strength of PCC cement using limestone and fly ash as raw materials, then calculate the difference in raw material costs in the year before and after the replacement of limestone with fly ash. The results showed that cement with the addition of fly ash after 3 days, 7 days and 28 days had an increased compressive strength value, which increased 21.69%, 16.07% and 8.05% respectively of the compressive strength of cement using limestone. The use of fly ash as a substitute for limestone has an effect on the cost of raw materials, where the difference between the cost of raw materials in 2019 and the cost of raw materials in 2018 is Rp. 39,440,952,074.


Author(s):  
Natalia Tanklevska ◽  
Viktoriia Petrenko ◽  
Alla Karnaushenko ◽  
Kateryna Melnykova

Purpose. The purpose of the article is to determine the prospects of deep processing of corn in Ukraine, taking into account the restraining factors of development, on the basis of the analysis of the state and tendencies of functioning of the world market of corn. Methodology / approach. During the research, general scientific and special research methods were used, in particular: analysis and synthesis, scientific abstraction – in determining the purpose and formulating conclusions; comparative, calculation, statistical and graphical ones – in the assessment, analysis, comparison and establishment of patterns of the current state and trends in the production of corn and its deep processing; program-target one – to substantiate the factors of intensification of deep processing of corn in Ukraine. Results. The analysis was carried out and tendencies of world corn production were determined. The shares of countries-producers and countries-consumers of corn were calculated; their dynamics of changes were analyzed. Analysis of the dynamics of prices for corn grain on the Chicago Mercantile Exchange indicates that the price of raw materials is gradually declining, so agricultural enterprises that sell corn as a raw material, lose income from its production. The structure of corn use in different directions in the world was analyzed, and the structure of its use in the USA was considered in more detail. Factors of activation of deep processing of corn were identified. In Ukraine, deep grain processing as an industry is just beginning to develop, so it is worth processing corn, based on the experience of leading countries, such as the USA and China. Estimated costs for the construction of a modern plant for deep processing of corn and income from the implementation of this investment project were calculated. Originality/scientific novelty. The scientific novelty of the study is a comprehensive analysis of the world corn market; economic substantiation of expediency of corn processing in Ukraine; improving the system of factors to intensify the development of deep processing of corn in Ukraine. Practical value / implications. The practical value of the results of the study is that they will contribute to the formation of the concept of intensifying the development of deep processing of corn in Ukraine. The main results can be used by agro-industrial enterprises during the development of deep corn processing projects.


2020 ◽  
Vol 19 (5-6) ◽  
pp. 155-159
Author(s):  
Ksenia N. Semenyuta ◽  
Anna A. Shmygareva ◽  
Anatoly N. Sankov

Introduction. The aim of the study is to perform the anatomical and histological analysis of the roots of Rheum palmatum L. and Rheum officinale B., and also to check histochemical reactions for the presence of anthracene derivatives. Material and methods. The methodological basis of the anatomical and histological studies was the standard method for the preparation of micro-preparations of roots of Rheum palmatum L. and Rheum officinale B. described in the State Pharmacopoeia of the Russian Federation, XIV edition (OFS.1.5.3.003.15). Results and discussion. Anatomical and histological studies of Rheum palmatum L. and Rheum officinale B. raw materials confirmed the roots of Rheum palmatum L. to have classical secondary structure, while the roots of Rheum officinale B. have classical primary structure. The histochemical reaction to anthracene derivatives with 10% alkali solution was carried out, it resulted in cherry-red staining of core rays and some structures of cortical parenchyma of the fragment of Rheum palmatum L., while the roots of Rheum officinale B. failed to stain. Conclusions. The anatomical and histological studies of the rhizomes and roots of Rheum palmatum L. and Rheum officinale B. demonstrate the difference in the structure of closely related species of plants. It makes possible to identify the medicinal raw material of these plants.


2017 ◽  
Vol 2 (2) ◽  
pp. 146-152
Author(s):  
Denny Lukianto Kumala ◽  
Soetam Rizky Wicaksono

In the manufacturing process Bus and Mini Bus, a lot of the raw materials required. Raw materials are stored at many warehouses (especially on Body PT. XYZ Malang). Materials / goods are highly vulnerable to lost or stolen. The most influential factor in it is the counting system inventory / materials and administration. These changes will have an impact on the process of goods more accurate calculation based on the demand of production. Losses will have a greater likelihood of being used if the system can not address the calculation of the goods/raw materials better.And administration system that can cope with the calculation of the goods/raw materials are better here is a system that can calculate expenditures for production based on the incoming bill alone, and can calculate the receipt of goods in accordance with the letter received by the supplier. The system can also provide reports based on existing transactions during a certain period.With the inventory system and the administration is then the difference between the goods that previously occurred can be minimized and raw material inventory accounting system can work better.


2019 ◽  
Vol 1 (2) ◽  
pp. 415-423
Author(s):  
Elia Rahayu R ◽  
Nor Norisanti ◽  
Acep Samsudin

The purpose of this study is to control the supply of raw materials using the Economic Order Quantity (EOQ) method in Tahu Nugraha Jaya Sukabumi UKM. The data analysis method used is quantitative descriptive to describe and describe the data to be examined and then processed using EOQ. This study uses the EOQ method to determine the total inventory cost. The data needed in this study are the number of purchases of raw materials, the amount of use of raw materials, storage costs, and ordering costs. The results of this study indicate that by applying the EOQ method can further optimize the supply of raw materials by minimizing raw materials with increased inventory. With the application of the Economic Order Quantity (EOQ) method it shows more efficient than conventional methods of the company. Conclusions, seen from the difference in the TIC of the two methods, the more efficient method is the Economic Order Quantity (EOQ) method that is equal to 244,392.94 while the calculation used by the company is 374,325. so that it can be obtained that there is a difference between the Company TIC and the EIC method TIC. Keywords: Raw Material Inventory, Production Process


Author(s):  
A. Komliev

In recent years, one of the brands of Ukraine has been amber. This is important for our country, because in the world thefashion for amber jewelry is preserved for centuries. Amber is constantly studied, all its new natural properties, consumerqualities are opened. Amber and products of its processing are now widely used in medicine, pharmaceuticals, perfumery,machine building, chemical, furniture, food improvement, food industry and agriculture. Worldwide the demand for amber raw materials is rising and so are the prices. Today, the industry is rapidly developing in Ukraine ("amber"), which includes theexploration, extraction and processing of amber. The development of the "amber" industry in Ukraine has caused a wholecomplex of interconnected problems. They (as well as the industry as a whole) are now the object of national security of thecountry. The only integrated national development program is one of them.The legislative basis for the development of the amber sphere is generally present in Ukraine, yet the matter of normativelegalhas not been finalized yet. The main issue in the development of the amber sphere in Ukraine is the limitation of the basis ofraw materials. In spite of the great demand and potentially great stock, Ukraine is not ready to access the world marketsascertain significant income in foreign currency. The broadening of the raw material base in the amber sphere is currentlyongoing in Ukraine by extraction in the already known sources and the opening of new ones. The second way is the strategic onewhich will determine the development of the amber sphere for the years to come. Its basis should be formed by the forecastsearching system of amber, the systematic methodology and comprehensive methods of research.


2010 ◽  
Vol 8 (1) ◽  
pp. 149-154 ◽  
Author(s):  
Maciej Jabłoński

AbstractEnriched titanium raw materials with high titanium content called titanium slags are received by the electrothermal reduction of ilmenite. Titanium slags are most frequently used in the titanium dioxide industry. The reaction of titanium slags with sulphuric acid is strongly exothermic and creates danger of thermal explosion. Kinetics of this reaction depends on the parameters such as temperature of initiation, sulphuric acid concentration and dimension of particles of titanium slag. The reaction of titanium slag with sulphuric acid was investigated at non-isothermal conditions in a special construction calorimeter. The observed thermal power changes in the calorimeter (“calorimeter run”), are the basis for estimation of reaction kinetics. A proposed model describing the thermal power changes and taking into account the moment of initiation of reaction is presented. The calorimetric investigations showed, that reaction rate of titanium slags with sulphuric acid depends on initial temperature of reaction, size of particles of titanium raw material and sulphuric acid concentration.


2011 ◽  
Vol 56 (01) ◽  
pp. 1-18 ◽  
Author(s):  
JOERGEN OERSTROEM MOELLER

For 200 years, we have lived with capitalism in its American style forged easy access to raw materials. Despite entering an era of scarcities, economics is still anchored in growth and distribution theories reflecting the world of plenty. Production theory does not recognize the significance of sharing of knowledge and group behavior introduced by ICT. Consumption theory is still about buying 'more', neglecting the element of uncertainty. Competition has been eradicated and replaced by a limited number of gigantic corporations. Only recently has economics started to go interdisciplinary to incorporate psychology and brain research to explain behavior when confronted with economic choices and the difference between individual and group behavior.


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