Nutrition & Food

·

Study

UV Light and Sun-Drying Boost Vitamin D in Oyster Mushrooms

UV Light and Sun-Drying Boost Vitamin D in Oyster Mushrooms

Oyster mushroom

What they found

20 minutes of UV-B light raised vitamin D2 in oyster mushrooms to 35.7 μg/100g.

20 minutes of UV-B light raised vitamin D2 in oyster mushrooms to 35.7 μg/100g.

The number

reaching 35.7 μg/100g

How solid is it?

Lab dish

Lab dish

Lab – chemical analysis

Lab – chemical analysis

Evidence ladder: Lab dish → Animal → Early human → Strong human. Reviews summarize earlier research.

At a glance

Latin name

Compound

vitamin D2

vitamin D2

Published in

ijpjournal.com

ijpjournal.com

Covered in Shroom Scan

Section

GROWING GOURMET

GROWING GOURMET

As it ran in Shroom Scan

Boosting Vitamin D

Boosting Vitamin D

UV-B light treatment, especially for 20 minutes, maximizes vitamin D2 content in oyster mushrooms, reaching 35.7 μg/100g. Drying methods also matter—direct sunlight (6 hours/day for 3 days) produced the highest levels (20.4 μg/g), while dark room drying yielded the lowest (3.2 μg/g). Proper storage, like refrigeration or vacuum sealing, preserved vitamin D2 better than room temperature.

UV-B light treatment, especially for 20 minutes, maximizes vitamin D2 content in oyster mushrooms, reaching 35.7 μg/100g. Drying methods also matter—direct sunlight (6 hours/day for 3 days) produced the highest levels (20.4 μg/g), while dark room drying yielded the lowest (3.2 μg/g). Proper storage, like refrigeration or vacuum sealing, preserved vitamin D2 better than room temperature.

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