Me iba ir a dormir, pero creo que algunos os merecéis esta info sobre setas y Vitamina D2 :
La exposición al sol entre 30 a 120´multiplica por mucho su cantidad de D2.
Agaricus bisporus, shiitake mushroom,
Lentinula edodes, oyster mushroom,
Pleurotus ostreatus
"......
4.3. Fresh Mushrooms Exposed to Sunlight
When fresh button mushrooms are deliberately exposed to midday sunlight for 15–120 min, they generate significant amounts of vitamin D2, usually in excess of 10 μg/100 g FW [
17,
35,
39,
40], which approaches the daily requirement of vitamin D recommended in many countries (
Table 1). However, the amount of vitamin D2 generated depends on the time of day, season, latitude, weather conditions, and exposure time.
Since these mushrooms have a higher surface area to volume (hence, more ergosterol is exposed), sun-exposed sliced mushrooms produce more vitamin D2 than whole mushrooms from the same amount of UV radiation exposure [
11,
39,
40]. At midday in mid-summer in Germany, the vitamin D2 content of sliced mushrooms was as high as 17.5 μg/100 g FW after 15 min of sun exposure and reached 32.5 μg/100 g FW after 60 min of sun exposure [
40].
An unpublished Australian study on whole button mushrooms determined the vitamin D2 content after exposure to the midday winter sun in July in Sydney (personal communication, J. Ekman, Applied Horticultural Research, 12 August 2013). Sun exposure to a single layer of small button mushrooms was sufficient to generate 10 μg D2/100 g FW after 1 h, while large button mushrooms took 2 h to generate the same amount of vitamin D2....."
A Review of Mushrooms as a Potential Source of Dietary Vitamin D