V. Piironen

Publications246
h-index61
Citations11,723
Highly Influential Citations672
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Selenium as an anti-oxidant and pro-oxidant in ryegrass
Selenium is an essential element for antioxidation reactions in human and animals. In order to study its biological role in higher plants, ryegrass (Lolium perenne) was cultivated in a soil without… Expand
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Plant sterols: biosynthesis, biological function and their importance to human nutrition.
Plant sterols are an essential component of the membranes of all eukaryotic organisms. They are either synthesised de novo or taken up from the environment. Their function appears to be to control… Expand
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Antioxidative and growth-promoting effect of selenium on senescing lettuce
In human and animal cells, Se plays an essential role in antioxidation and exerts an antiaging function but it is toxic at high dietary intake. To increase its intake in forage and foodstuffs, Se… Expand
  • 405
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Contents of vitamins, mineral elements, and some phenolic compounds in cultivated mushrooms.
The aim of the study was to determine the contents of mineral elements (Ca, K, Mg, Na, P, Cu, Fe, Mn, Cd, Pb, and Se), vitamins (B(1), B(2), B(12), C, D, folates, and niacin), and certain phenolic… Expand
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Tocopherol, tocotrienol and plant sterol contents of vegetable oils and industrial fats
The tocopherol and tocotrienol (i.e. tocol) and plant sterol contents of 14 vegetable and 9 industrial fats and oils available on the Finnish market in 2005 were determined using NP-HPLC with… Expand
  • 340
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Sterol and vitamin D2 contents in some wild and cultivated mushrooms
Abstract The contents of vitamin D 2 and sterols in some wild and cultivated mushrooms were determined, and the distribution of these compounds in different parts of the wild mushrooms was evaluated.… Expand
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Determination of thermo-oxidation products of plant sterols.
Plant sterols are subjected to oxidation when exposed to air and, especially, when heated at high temperatures. We developed a method to study thermo-oxidation of plant sterols. The method consisted… Expand
  • 118
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Blanching and long-term freezing affect various bioactive compounds of vegetables in different ways
An extensive study on the effects of blanching/freezing and long-term freezer storage on various bioactive compounds of more than 20 commonly used vegetables was performed. Effects were strongly… Expand
  • 218
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Phytochemicals and dietary fiber components in rye varieties in the HEALTHGRAIN Diversity Screen.
Ten rye varieties grown in one location were analyzed for their contents of dietary fiber (arabinoxylan and beta-glucan) and phytochemicals (folate, tocols, phenolic acids, alkylresorcinols, and… Expand
  • 193
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Effect of Baking Method and Fermentation on Folate Content of Rye and Wheat Breads
ABSTRACT The effect of baking method on folates of rye and wheat breads, as well as the effect of sourdough fermentation of rye, were examined. Sourdough fermentations were performed both with and… Expand
  • 118
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