Cooking Vegetables

Saturday, May 23, 2009
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Vegetables are an important source of vitamins. For example, carrot contains vitamin A and tomato contains plenty of vitamin C. In addition, vegetables are also source for vitamin B 1 (thiamin) and some of Calcium (Ca) and iron (Fe). Unfortunately, vitamins in general do not have a stable nature. Vitamin C, for instance, oxydized  and damaged by light and high temperature easily. 

So, to minimize the loss of vitamins in cooking processes, wash vegetables first before cutting them into small pieces. Don't reverse this process. Comparison between vegetables and water is important too. Good comparison between the vegetables and water for cooking is 1: 3, with the nutrients that are on vegetables do not lose much because the dissolve in the water solvent. Meanwhile, the processing time will be vary depend on what kind of vegetables that are processed.



Algae

Wednesday, May 6, 2009
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“Sargassum muticum” and “Undaria pinnatifida” are the names of two kinds of algae brought by the ships coming from Japan and the Sargassi sea. The algea grows over the seaport of Venice, causing problems for gondolas and ferry boats. But today it could be turned into a resource.

Italy recently announced a 200 million euro eco-friendly project to harvest the prolific seaweed that lines Venice’s canals and transform it into emissions-free energy. The idea is to set up a power plant fuelled by algae, the first facility of its kind in Italy. The plant, to be built in collaboration with renewable energy services company Enalg, will be operative in two years and will produce 40 megawatts of electricity, equivalent to half of the energy required by the entire city centre of Venice.


The algae will be cultivated in laboratories and put in plastic cylinders where water, carbon dioxide, and sunshine can trigger photosynthesis. The resulting biomass will be treated further to produce a fuel to turn turbines. The carbon dioxide produced in the process will be fed back to the algae, resulting in zero emissions from the plant. “Venice could represent the beginning of a global revolution of energy and renewable resources. Our goals are to achieve the energetic self-sufficiency for the seaport and to reduce CO2 emissions, including those one produced by the docked ships”, says the president of the seaport of Venice Authority, Paolo Costa.

The idea sounds good and seems to open great possibilities for zero emission energy production; Venice could represent the first step of a real innovative evolution even if there are still some doubts about the huge amount of money required for this project and the authorization needed to built the plant.

For more information about biomass energy, see also Solena Group.