title: Effects of UV-C treatment and cold storage on ergosterol and vitamin D2 contents in different parts of white and brown mushroom (Agaricus bisporus).
abstract: Effects of ultraviolet-C (UV-C) treatment (0.5, 1.0 and 2.0kJ/m(2)) and cold storage on ergosterol and vitamin D2 content in different parts of white and brown button mushrooms (Agaricus bisporus) were investigated. UV-C treatment did not significantly affect ergosterol content in the caps and stems of the two mushrooms, but ergosterol content increased significantly during 14days cold storage. Vitamin D2 content in the caps and stems of two mushrooms significantly increased as UV-C dose increased, and 2.0kJ/m(2) UV-C showed the best result. During cold storage, vitamin D2 content in the caps of the two mushrooms decreased from day 1 to day 7, and then kept stable until day 14, but vitamin D2 content in the stems of brown mushrooms kept increasing for the whole 14days period. UV-C could increase vitamin D2 contents in both caps and stems of white and brown mushrooms without significantly affecting ergosterol content.
authors.affiliation: Tianjin Key Laboratory of Food Biotechnology, College of Biotechology and Food Sciences, Tianjin University of Commerce, Tianjin 300134, China. Electronic address: gwq18@163.com.
authors.forename: Wenqiang
authors.initials: W
authors.lastname: Guan
authors.affiliation: Institute of Agro-products Processing Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Processing, Ministry of Agriculture, Beijing 100193, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Tianjin Key Laboratory for Postharvest Physiology and Storage of Agricultural Products, National Engineering and Technology Research Center for Preservation of Agricultural Products, Tianjin 300384, China.
authors.forename: Ruixiang
authors.initials: R
authors.lastname: Yan
authors.affiliation: Guelph Food Research Centre, Agriculture & Agri-Food Canada, 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada. Electronic address: suqin.shao@agr.gc.ca.
authors.forename: Suqin
authors.initials: S
authors.lastname: Shao
authors.affiliation: Guelph Food Research Centre, Agriculture & Agri-Food Canada, 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada.
authors.forename: Ting
authors.initials: T
authors.lastname: Zhou
authors.affiliation: Tianjin Key Laboratory of Food Biotechnology, College of Biotechology and Food Sciences, Tianjin University of Commerce, Tianjin 300134, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Lei
authors.affiliation: Institute of Agro-products Processing Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Processing, Ministry of Agriculture, Beijing 100193, China.
authors.forename: Zhidong
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000364:Agaricus / Q000737:chemistry* / Q000528:radiation effects; D003080:Cold Temperature; D004872:Ergocalciferols / Q000032:analysis* / Q000528:radiation effects; D004875:Ergosterol / Q000032:analysis* / Q000528:radiation effects; D061353:Food Storage / Q000379:methods*; D014466:Ultraviolet Rays
chemical_list: D004872:Ergocalciferols; D004875:Ergosterol
keywords: Agaricus bisporus; Cold storage; Ergosterol; UV-C treatment; Vitamin D(2)