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Vitamin D2 enrichment in mushrooms by natural or artificial UV-light during drying
- Source :
- LWT - Food Science and Technology. 85:400-404
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- This paper investigates the effect of direct sunlight during natural sun drying and solar drying in a forced convection type solar dryer on vitamin D 2 content of brown button mushrooms ( Agaricus bisporus ). Commercial UVB light, sample processing and drying methods on vitamin D 2 content were also studied via different UVB-drying strategies. Mushrooms of the same flush were divided in different groups: i) slices were dried under the sun and in an innovative solar dryer, ii) slices were UVB-treated and dried either by freeze- or convective drying, iii) whole fruit bodies were UVB-treated, sliced and freeze-dried, iv) freeze dried samples were UVB-treated in the form of slices or powder. UVB-treatment of whole mushrooms led to remarkable vitamin D 2 enrichment (45 μg/g dry matter), while slicing of mushrooms prior to UVB exposure resulted in a ten-fold increase in D 2 content (406 μg/g). UVB light exposure of already dried slices and powder also induced high vitamin D 2 generation. Sun-dried and solar-dried mushrooms contained 36 and 39 μg/g dry matter vitamin D 2 , respectively. Although commercial UVB light boost D 2 synthesis in mushrooms, solar drying represents a viable method for the natural formation of ergocalciferol in mushrooms and an excellent vitamin D source for vegans.
- Subjects :
- Sunlight
Solar dryer
Vitamin
integumentary system
food and beverages
04 agricultural and veterinary sciences
Solar drying
040401 food science
chemistry.chemical_compound
Ergocalciferol
0404 agricultural biotechnology
chemistry
Vitamin D and neurology
medicine
Dry matter
Food science
skin and connective tissue diseases
Agaricus bisporus
Food Science
medicine.drug
Subjects
Details
- ISSN :
- 00236438
- Volume :
- 85
- Database :
- OpenAIRE
- Journal :
- LWT - Food Science and Technology
- Accession number :
- edsair.doi...........8a6adae471c8ddcbdc91455638578ca0