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Pleurotus ostreatus, the oyster mushroom, is a common edible mushroom. It was first cultivated in Germany as a subsistence measure during World War 2  and is now grown commercially around the world for food.

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Stevia  is a sweetener and sugar substitute extracted from the leaves of the plant species Stevia rebaudiana, native to Brazil and Paraguay. The active compounds are steviol glycosides (mainly stevioside and rebaudioside), which have 30 to 150 times the sweetness of sugar,

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Spirulina is a biomass of cyanobacteria (blue-green algae) that can be consumed by humans and other animals. The two species are Arthrospira platensis and A. maxima.

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The gap between samsung and apple’s advertising spend, which was $68 million http://celltrackingapps.com in 2012, reduced to just $12 million in 2013.