scholarly journals APLICAÇÕES DA TECNOLOGIA DE MEMBRANAS NO PROCESSAMENTO DE ÓLEOS VEGETAIS

2005 ◽  
Vol 23 (1) ◽  
Author(s):  
ANA PAULA BADAN RIBEIRO ◽  
MARINALDA DA SILVA SOARES ◽  
JULIANA MARIA LEITE NÓBREGA DE MOURA ◽  
MILUSKA CASTILHO CÁCERES ◽  
LIRENY APARECIDA GUARALDO GONÇALVES
Keyword(s):  
Conventional Method ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Low Temperatures ◽  
Membrane Technology ◽  
Promising Alternative ◽  
Oil Processing ◽  
The World ◽  
Removal Studies

Esta revisão de literatura teve como objetivo relatar as pesquisas que têm sido realizadas sobre a aplicação da tecnologia de membranas na área de óleos vegetais, com ênfase particular nas etapas de degomagem, desacidificação e remoção de pigmentos. Estudos sobre a concentração de tocoferóis também foram abordados. O processamento de óleos através de membranas, efetivado em baixas temperaturas e com eliminação de diversas etapas frente aos métodos convencionais, apresenta-se como alternativa promissora, refletindo a tendência mundial por processos menos dispendiosos e tecnologicamente mais avançados. APPLICATIONS OF MEMBRANE TECHNOLOGY IN VEGETABLE OIL PROCESSING Abstract The purpose of this review was to report the research that has been carried out in the application of membrane technology in the area of vegetable oils, with particular emphasis on degumming stage, deacidification and pigments removal. Studies about tocopherols concentration also were reported. The oils processing with membranes, done under low temperatures and with substantial exclusion of stages instead of using conventional method, presents a promising alternative, reflecting the world tendency for less costly but at the same time technically more advanced processes.

Membrane technology for vegetable oil processing—Current status and future prospects

2021 ◽  
Vol 20 (5) ◽  
pp. 5015-5042
Author(s):  
Subramanian Rangaswamy ◽  
Gopika S. Kumar ◽  
Chezhiyan Kuppusamy
Keyword(s):  
Vegetable Oil ◽  
Membrane Technology ◽  
Current Status ◽  
Future Prospects ◽  
Oil Processing

Performance and Emission Evaluation of Low Heat Rejection Direct Injection Diesel Engine Fueled by Diesel–Turpentine Oil Blends

2010 ◽  
Author(s):  
K. Anandavelu ◽  
N. Alagumurthi ◽  
C. G. Saravanan
Keyword(s):  
Diesel Engine ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Direct Injection ◽  
High Energy ◽  
Promising Alternative ◽  
Heat Rejection ◽  
Performance And Emission ◽  
Direct Injection Diesel Engine

Light Vegetable oils are a promising alternative among the different diesel fuel alternatives. Using Light Vegetable oils in diesel engine is not a new idea. The Vegetable oils have high energy content. However, the high viscosity, poor volatility and cold flow characteristics of vegetable oils can cause some problems such as severe engine deposits, piston ring sticking and thickening of lubrication oil due to long-term use in diesel engines. Diesel fueled engine have the disadvantage of producing Smoke, Particulate Matter and Nitrogen Oxides and are now subjected to increasingly severe legislation of Emission norms. The required levels are difficult to achieve through engine design alone. Even with high-grade fuels, catalytic systems are being extensively investigated to reduce the diesel engine emission. But there are still difficulties in operation of these. This leads to replacement of diesel fuel with renewable fuels has been set target worldwide to reduce the diesel exhaust pollution. The energy of the light vegetable oil can be released more efficiently with the concept of low heat rejection (LHR) engine. The aim of the study is to apply LHR engine for improving the engine performance and reducing the emission when light vegetable oil (turpentine oil) is used as an alternate fuel. The work was carried out in two stages. In first Stage, the turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel blends used in direct injection diesel engine and to identify best blend with respect to performance and emission. In second Stage, the work has been carried out by the converting direct injection diesel engine in to a LHR engine and the effects of different blends of turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel fuel used in LHR engine and its performance, emission and combustion characteristics have been investigated experimentally. From the experimental investigation, the combination of LHR engine with blended fuels shows the better performance when compared to diesel engine. The smoke density decreases for the diesel engine (without LHR) whereas with the effect of LHR, Oxides of Nitrogen will be reduced and heat release rate also reduces.

scholarly journals POTENSI MINYAK NABATI SEBAGAI BAHAN MENTAH BIODIESEL DAN PENGOLAHANNYA DI INDONESIA = POTENCY OF VEGETABLE OIL AS BIODIESEL FEEDSTOCK AND ITS PROCESSING IN INDONESIA

2015 ◽  
Vol 9 (1) ◽  
pp. 13-20
Author(s):  
Sudirman Habibie
Keyword(s):  
Vegetable Oil ◽  
Vegetable Oils ◽  
The Other ◽  
Oil Consumption ◽  
Biofuel Feedstock ◽  
Other Hand ◽  
Biodiesel Feedstock ◽  
The World

Abstract Since 2004, Indonesia has become an importer of fossil oil in the world and it is increase steadily year by year. Currently its production of oil is only about 857,000 barrels per day, on the other hand its consumption has increased to 1,5 million barrels per day. The raising of oil subsidy and the increase of oil consumption has pressure Indonesian economy. On the other hand, Indonesia has a potency of production of various plants to produce vegetable oils as biofuel feedstock, such as : palm, coconut, jatropha, castor, calophyllum, sunflower, corn, olive, peanut, cotton/kapok and other sources like algae and biomass. Therefore, Indonesia has to develop soon plants to produce vegetable oils to replace fossil oil. Besides that, this study also reveals the processing of biofuel by using the trans-esterification method to convert triglyceride to ester namely biodiesel. Abstrak Indonesia sejak tahun 2004 telah menjadi salah satu Negara pengimpor minyak fosil didunia yang setiap tahun meningkat. Saat ini produksi minyak Indonesia hanya berkisar 857.000 barrel per hari, sedangkan konsumsi telah mencapai 1,68 juta barrel per hari. Peningkatan subsidi minyak dan konsumsi minyak telah menekan kondisi ekonomi. Dilain pihak, Indonesia termasuk salah satu Negara penghasil beragam jenis tanaman penghasil minyak nabati sebagai bahan baku biofuel, seperti : sawit, kelapa dalam, jarak kapyar, jarak pagar, nyamplung, bunga matahari, jagung, zaitun, kacang tanah, kapas/kapok dan sumber lainnya seperti algae dan biomas. Untuk itu tidak ada pilihan lain, Indonesia harus segera mengembangkan tanaman penghasil minyak nabati sebagai pengganti minyak fosil. Disamping itu juga akan didiskusikan proses pembuatan biodiesel dari minyak nabati menggunakan metoda transesterifikasi untuk merubah trigliserida menjadi ester sebagai biodiesel.

scholarly journals The main factors affecting the competitiveness of the oil processing complex

Ekonomika ◽  
2021 ◽  
Vol 67 (2) ◽  
pp. 69-88
Author(s):  
Daria Palitsyna Vladimirovna
Keyword(s):  
Vegetable Oil ◽  
Vegetable Oils ◽  
Financial Stability ◽  
Objective Assessment ◽  
Public Confidence ◽  
Competitive Advantages ◽  
Investment Activity ◽  
Factors Affecting ◽  
Oil Processing ◽  
The Impact

The development of the economic situation in Russia in recent years is characterized by the achievement of stabilization at the macro level, the strengthening of investment activity, the expansion of the scope of activities of the processing industry, the strengthening of public confidence in domestic goods and finished products. The research urgency is caused by the fact that in Russia economic competition becomes more acute in oil and fat processing sector, also has a problem of lack of training organizations to consider the impact of external factors and competitive advantages of the industry to ensure financial stability. The purpose of the study is to study the features of factors affecting the competitiveness of the oil processing complex. On the basis of sources of economic literature, the authors studied the competitiveness of vegetable oil production by comparison and identified the problems of insufficient methodological support for studying the impact of factors that determine the current state of the vegetable oil market, methods and approaches for assessing the competitiveness of organizations. The leading direction is a comprehensive approach presented by the authors in the article, including the study of domestic and international experience in determining the factors of internal and external environment that affect the development of the industry. The study of the traditional system of assessing the competitiveness of vegetable oils is given, proposed by Russian and foreign scientists. As a result of the conducted research it is established that modern domestic and foreign methods of the analysis of the competitiveness of vegetable oils do not differ in high quality and have shortcomings. The authors noted that the analysis of the concept of competitiveness of vegetable oils does not take into account the quality indicators are not always fully represented the composition and structure of the concept, not justified organizational and methodological approaches to the analysis of the concept of competitiveness applicable to vegetable oils. The researchers note the need for an objective assessment of the analysis of the concept of competitiveness of vegetable oils to supplement it with a more detailed study of improving the level of competitiveness. In their opinion, the lack of a single definition of the term "competitiveness of products" is one of the most difficult in the formation of an adequate approach to the assessment of the phenomenon. This leads to the fact that the most common assessment is a comparative assessment of similar vegetable oils with ethanol. The study conducted by the authors has scientific and practical significance and will allow to develop a methodological apparatus (parameters and criteria for assessing the level of competitiveness of vegetable oils) in accordance with the requirements of the industry in the world economy, as well as to form a set of strategic and tactical management decisions to improve the competitiveness of vegetable oils and mechanisms of interaction in creating competitive advantages and strengthening the market position of vegetable oils.

LOCATION OF OILSEED PRODUCTION IN TERMS OF VEGETABLE OIL EXPORT

2020 ◽  
Vol 1 (10) ◽  
pp. 94-100
Author(s):  
Yu. V. RAGULINA ◽  
Keyword(s):  
Seed Production ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Sunflower Oil ◽  
World Export ◽  
Oil Export ◽  
Oilseed Production

The article is devoted to the issues of placing seed production in the conditions of world export of vegetable oils. In 2019, the volume of Russian exports of sunflower oil exceeded 3 million tons for a total of $ 2,2 billion, which is about 30% of the vegetable oil produced in the country. In Russia, the main oilseeds are sunflower, rapeseed, and soy. Less common crops include oilseed flax, ginger, mustard, and safflower. It is stated that in 2001–2019, the acreage of all types of oilseeds in the country increased by more than 2 times, and the gross harvest – by 3,3 times, while the yield increased by 1,4 times.

scholarly journals Content Visualization: An Evaluation of PowerPoint Effectiveness as a Learning Tool for Students

2018 ◽  
Vol 7 (2.29) ◽  
pp. 840
Author(s):  
Devi Pratami ◽  
Asti Amalia Nur Fajrillah ◽  
Tien Fabrianti Kusumasari
Keyword(s):  
Conventional Method ◽  
Test Score ◽  
Visual Presentation ◽  
Statistical Test ◽  
Learning Tool ◽  
The World ◽  
Slide Show ◽  
Conventional Methods ◽  
Education Field

PowerPoint is a slide show presentation program from Microsoft, which also one of the most widely used programs to develop visual presentation all over the world. PowerPoint has become enormously popular because of the functionalities offered and since it is designed to be easy to use. Previous researchers stated PowerPoint as one of the best tool to facilitate users to deliver idea/objective/goal, especially in education field. But some of the researchers argue that in today’s environment, PowerPoint no longer be the best tool to deliver information. This research aims to evaluate and design the content of the slide which influences the level of students understanding on information being presented. This research will be comparing three methods at once, which are a conventional method where the material course will be presented without any PowerPoint and are limited to boards and books. The second method will be a material-course presentation using a PowerPoint where it was using an aesthetically pleasing and methodically correct PowerPoint. And the last method would be the combination between the two. By using a statistical test ANOVA that among three methods there is no significance impact to the students understanding. Nevertheless, based on the test score that are done after treatment the results show that the quality of PowerPoint slide has an influence to the level of students understanding compared to conventional methods (blackboard and textbook). But only attractive slide itself is insufficient to improve students understanding, this study will incorporate conventional method and attractive slide through content visualization in order to gives a better impact on students understanding.  

scholarly journals Emulsion of systems containing egg yolk, polysaccharides and vegetable oil

2012 ◽  
Vol 36 (5) ◽  
pp. 543-550 ◽  
Author(s):  
Clitor Junior Fernandes de Souza ◽  
Edwin Elard Garcia Rojas
Keyword(s):  
Fatty Acid ◽  
Droplet Size ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Xanthan Gum ◽  
Emulsion Stability ◽  
Egg Yolk ◽  
Emulsifying Properties ◽  
Emulsifying Activity ◽  
Excellent Stability

This work characterizes the emulsifying properties of systems containing egg yolk (0.1; 1.0 and 2.5 % w/v) and polysaccharides (xanthan gum, carrageen, pectin and carboxymethylcellulose) and three different vegetable oils (sunflower, canola, and palm oils). Emulsifying activity and emulsion stability were measured of each combination and it was found the effect of the oil on emulsion stability correlated to the amount of monounsaturated fatty acid. Additionally, increased egg yolk concentration increased emulsifying activity by reducing coalescence of oil droplets. Lastly, 2.5% egg yolk and 0.2% polysaccharide generated emulsions with high emulsifying activity, excellent stability, and droplet size of 4.32 µm.

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