jueves, 26 de julio de 2012

PALMA KERNEL OIL - ARTÍCULO PARA ESTUDIANTES DE INGENIERÍA FORESTAL


Palm kernel oil is a monoculture ?
What is a monoculture?
Monoculture is the agricultural practice of producing or growing one single crop over a wide area. It is also known as a way of farming practice of growing large stands of a single species. It is widely used in modern industrial agriculture and its implementation has allowed for large harvests from minimal labor. However, this ratio remains true only if the accounting for labor required is limited to the number of workers employed on the farm. If the indirect work of employees involved in producing chemicals and machinery are taken into account, the ratio of labor to output is higher. Monocultures can lead to the quicker spread of diseases, where a uniform crop is susceptible to a pathogen. 'Crop monoculture' is the practice of growing the same crop year after year. The term is frequently borrowed for other uses, such as raising one species of livestock in a factory farm, or even in fields other than agriculture to describe any group dominated by a single variety, e.g. in the field of musicology to describe the dominance of the American and British music-industries in pop music, or in the field of computer science to describe a group of computers all running identical software. Oil palm is one of the world's most rapidly expanding equatorial crops. The two largest oil palm-producing countries—Indonesia and Malaysia—are located in Southeast Asia, a region with numerous endemic, forest-dwelling species. Oil palm producers have asserted that forests are not being cleared to grow oil palm. Our analysis of land-cover data compiled by the United Nations Food and Agriculture Organization suggests that during the period 1990–2005, 55%–59% of oil palm expansion in Malaysia, and at least 56% of that in Indonesia occurred at the expense of forests. Using data on bird and butterfly diversity in Malaysia's forests and croplands, we argue that conversion of either primary or secondary (logged) forests to oil palm may result in significant biodiversity losses, whereas conversion of pre-existing cropland (rubber) to oil palm results in fewer losses. To safeguard the biodiversity in oil palm-producing countries, more fine-scale and spatially explicit data on land-use change need to be collected and analyzed to determine the extent and nature of any further conversion of forests to oil palm; secondary forests should be protected against conversion to oil palm; and any future expansion of oil palm agriculture should be restricted to pre-existing cropland or degraded habitats.
Research
In the 1960s, research and development (R&D) in oil palm breeding began to expand after Malaysia's Department of Agriculture established an exchange program with West African economies and four private plantations formed the Oil Palm Genetics Laboratory. The government also established Kolej Serdang, which became the University Pertanian Malaysia (UPM) in the 1970s to train agricultural and agro-industrial engineers and agro-business graduates to conduct research in the field.In 1979, following strong lobbying from oil palm planters and support from the Malaysian Agricultural Research and Development Institute (MARDI) and UPM, the government set up the Palm Oil Research Institute of Malaysia (Porim). B.C. Sekhar was instrumental in Porim's recruitment and training of scientists to undertake R&D in oil palm tree breeding, oil palm nutrition and potential oleochemical use. Sekhar, as founder and chairman, strategised Porim to be a public-and-private-coordinated institution. As a result, Porim (renamed Malaysian Palm Oil Board in 2000) became Malaysia's top research entity with the highest technology commercialization rate of 20% compared to 5% among local universities.[citation needed] While MPOB has gained international prominence, its relevance is dependent on it churning out breakthrough findings in the world's fast-changing oil crop genetics, dietary fat nutrition and process engineering landscape.
Biodiesel, biomass and biogas
Palm kernel oil, like other vegetable oils, can be used to create biodiesel for internal combustion engines. Biodiesel has been promoted as a renewable energy source to reduce net emissions of carbon dioxide into the atmosphere. Therefore, biodiesel is seen as a way to decrease the impact of the greenhouse effect and as a way of diversifying energy supplies to assist national energy security plans.Palm is also used to make biodiesel, as either a simply-processed palm kernel oil mixed with petrodiesel, or processed through transesterification to create a palm kernel oil methyl ester blend, which meets the international EN 14214 specification, with glycerin as a byproduct. The actual process used to make biodiesel around the world varies between countries, and the requirements of different export markets. Next-generation biofuel production processes are also being tested in relatively small trial quantities.
The IEA predicts that biofuels usage in Asian countries will remain modest. But as a major producer of palm kernel oil, the Malaysian government is encouraging the production of biofuel feedstock and the building of biodiesel plants that use palm kernel oil. Domestically, Malaysia is preparing to change from diesel to bio-fuels by 2008, including drafting legislation that will make the switch mandatory. From 2007, all diesel sold in Malaysia must contain 5% oil palm oil. Malaysia is emerging as one of the leading biofuel producers, with 91 plants approved and a handful now in operation, all based on oil palm oil. On 16 December 2007, Malaysia opened its first biodiesel plant in the state of Pahang, which has an annual capacity of 100,000 tonnes, and also produces byproducts in the form of 4,000 tonnes of palm fatty acid distillate and 12,000 tonnes of pharmaceutical grade glycerine.  Neste Oil of Finland plans to produce 800,000 tonnes of biodiesel per year from Malaysian palm oil in a new Singapore refinery from 2010, which will make it the largest biofuel plant in the world, and 170,000 tpa from its first second-generation plant in Finland from 2007-8, which can refine fuel from a variety of sources. Neste and the Finnish government are using this paraffinic fuel in some public buses in the Helsinki area as a small scale pilot.  Regardless of these new innovations, first generation biodiesel production from oil palm is still in demand globally. Oil palm producers are investing heavily in the refineries needed for biodiesel. In Malaysia, companies have been merging, buying others out and forming alliances to obtain the economies of scale needed to handle the high costs caused by increased feedstock prices. New refineries are being built across Asia and Europe. As the food vs. fuel debate mounts, research direction is turning to biodiesel production from waste. In Malaysia, an estimated 50,000 tonnes of used frying oils, both vegetable oils and animal fats, are disposed of yearly without treatment as wastes. In a 2006 study, researchers found used frying oil (mainly palm olein), after pretreatment with silica gel, is a suitable feedstock for conversion to methyl esters by catalytic reaction using sodium hydroxide. The methyl esters produced have fuel properties comparable to those of petroleum diesel, and can be used in unmodified diesel engines.
 Market
According to Hamburg-based Oil World trade journal, global production of oils and fats in 2008 stood at 160 million tonnes. Palm kernel oil and palm oil were jointly the largest contributor, accounting for 48 million tonnes or 30% of the total output. Soybean oil came in second with 37 million tonnes (23%). About 38% of the oils and fats produced in the world were shipped across oceans. Of the 60.3 million tonnes of oils and fats exported around the world, palm oil and palm kernel oil make up close to 60%; Malaysia, with 45% of the market share, dominates the palm oil trade.
 Colombia
In the 1960s, about 18,000 hectares were planted with palm. Colombia has now become the largest palm oil producer in the Americas, and 35% of its product is exported as biofuel. In 2006, the Colombian plantation owners' association, Fedepalma, reported oil palm cultivation was expanding to a million hectares. This expansion is being funded, in part, by the United States Agency for International Development to resettle disarmed paramilitary members on arable land, and by the Colombian government, which proposes to expand land use for exportable cash crops to 7m hectares by 2020, including oil palms. However, while Fedepalma states that its members are following sustainable guidelines,there have been claims that some of these new plantations have been appropriated on land owned by Afro-Colombians driven away through poverty and civil war, while armed guards intimidate the remaining people to depopulate the land, while coca production and trafficking follows in their wake.

1 comentario:

  1. Este articulo me pareció muy interesante porque no solo habla de la palma de aceite de almendra como tal, sino que nos nombran los monocultivos,y esto nos hace reflexionar que tan viables son estos monocultivos y que utilidades y beneficios dan en un impacto social y ambiental... se que estos cultivos de aceite de palma de almendra, como otros aceites vegetales, se puede utilizar para crear biodiésel para motores de combustión interna, el articulo nos menciona lo siguiente: "Por lo tanto, el biodiesel es visto como una forma de disminuir el impacto del efecto invernadero y como una forma de diversificar los suministros de energía para ayudar a los nacionales de seguridad energética". pero esto a su vez presenta inconvenientes como es el impacto ambiental, la Deforestación de millones de hectáreas para expandir el cultivo de palmeras en países como Indonesia, Malasia, Colombia, Tailandia… Y usado como biocombustible no supone una gran ventaja con respecto al petróleo. En general, aunque dependiendo del tipo, los biocombustibles emiten diez veces más CO2 que los combustibles convencionales, aunque varía mucho dependiendo área (Los biocombustibles derivados del aceite de palma, emiten 55 veces más dióxido de carbono si la palma proviene de una plantación ubicada en un trozo de selva deforestada, en comparación con la que proviene de un área que ya estaba dedicada a la agricultura) Según un estudio realizado por el Instituto Tecnológico de Massachusetts. El cultivo de la palma de aceite implica no solamente la incorporación de áreas importantes del territorio al monocultivo, sino el arrasamiento con maquinaria agrícola
    y moto niveladoras de las capas vegetales, de sabanas, rastrojos y bosques secundario y por la posterior quema, para la “civilización” y nivelación de los suelos en los cuales se va a sembrar la palma de aceite. " es una reflexion que muy pocos se han hecho"... no todo lo que brilla es oro" ....

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