Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.foodchem.2004.08.022
DC FieldValue
dc.titleDistribution of ergosterol in different tissues of mushrooms and its effect on the conversion of ergosterol to vitamin D2 by UV irradiation
dc.contributor.authorJasinghe, V.J.
dc.contributor.authorPerera, C.O.
dc.date.accessioned2014-10-16T08:26:25Z
dc.date.available2014-10-16T08:26:25Z
dc.date.issued2005-09
dc.identifier.citationJasinghe, V.J., Perera, C.O. (2005-09). Distribution of ergosterol in different tissues of mushrooms and its effect on the conversion of ergosterol to vitamin D2 by UV irradiation. Food Chemistry 92 (3) : 541-546. ScholarBank@NUS Repository. https://doi.org/10.1016/j.foodchem.2004.08.022
dc.identifier.issn03088146
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/93621
dc.description.abstractAnalysis of ergosterol content in different tissues of Shiitake mushrooms showed a significant difference (p < 0.01) in its distribution. Thus, the conversion of ergosterol in whole mushrooms to vitamin D2, by exposure to UV irradiation, was significantly affected (p < 0.01) by the orientation of the mushroom tissues to the UV. The highest ergosterol content was found in button mushrooms (7.80 ± 0.35 mg/g DM) while the lowest was in enoki mushrooms (0.68 ± 0.14 mg/g DM). The conversion of ergosterol to vitamin D2 was about four times higher when gills were exposed to UV-A irradiation than when the outer caps were exposed to the same. The lowest conversion to vitamin D2 (12.5 ± 0.28 μg/g DM) was observed for button mushrooms while the highest value (45.1 ± 3.07 μg/g DM) was observed for oyster mushrooms. The optimum moisture content of mushrooms for this conversion was around 78% on a wet basis and the temperature was around 35°C. © 2004 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.foodchem.2004.08.022
dc.sourceScopus
dc.subjectAgaricus bisporus
dc.subjectErgosterol
dc.subjectFlammulina velutipes
dc.subjectLentinula edodes
dc.subjectMushrooms
dc.subjectPleurotus cystidus
dc.subjectPleurotus ostreatus
dc.subjectUV irradiation
dc.subjectVitamin D2
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1016/j.foodchem.2004.08.022
dc.description.sourcetitleFood Chemistry
dc.description.volume92
dc.description.issue3
dc.description.page541-546
dc.description.codenFOCHD
dc.identifier.isiut000228713300019
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