TY - JOUR
T1 - Impact of Sulfur Fumigation on the Chemistry of Dioscoreae Rhizoma (Chinese Yam)
AU - Chan, Yui-Man
AU - Lu, Bo-Wen
AU - Zhang, Wei-Hao
AU - Chan, Kam-Chun
AU - Fang, Jing
AU - Luo, Han-Yan
AU - Du, Juan
AU - Zhao, Zhong-Zhen
AU - Chen, Hu-Biao
AU - Dong, Caixia
AU - Xu, Jun
N1 - Funding Information:
The study was financially supported by the National Natural Science Foundation of China (81872975), Hong Kong Innovation and Technology Fund (PRP/003/20FX), and Hong Kong General Research Fund (12100219 and 12103919).
Publisher copyright:
© 2023 The Authors. Published by American Chemical Society
PY - 2023/6/13
Y1 - 2023/6/13
N2 - Dioscoreae Rhizoma (Chinese yam; derived from the rhizome of Dioscorea opposita Thunb.) (DR), commonly consumed as a food or supplement, is often sulfur-fumigated during post-harvest handling, but it remains largely unknown if and how sulfur fumigation impacts the chemistry of DR. In this study, we report the impact of sulfur fumigation on the chemical profile of DR and then the molecular and cellular mechanisms potentially involved in the chemical variations induced by sulfur fumigation. The results show that sulfur fumigation significantly and specifically changed the small metabolites (molecular weight lower than 1000 Da) and polysaccharides of DR at both qualitative and quantitative levels. Multifaceted molecular and cellular mechanisms involving chemical transformations (e.g., acidic hydrolysis, sulfonation, and esterification) and histological damage were found to be responsible for the chemical variations in sulfur-fumigated DR (S-DR). The research outcomes provide a chemical basis for further comprehensive and in-depth safety and functional evaluations of sulfur-fumigated DR.
AB - Dioscoreae Rhizoma (Chinese yam; derived from the rhizome of Dioscorea opposita Thunb.) (DR), commonly consumed as a food or supplement, is often sulfur-fumigated during post-harvest handling, but it remains largely unknown if and how sulfur fumigation impacts the chemistry of DR. In this study, we report the impact of sulfur fumigation on the chemical profile of DR and then the molecular and cellular mechanisms potentially involved in the chemical variations induced by sulfur fumigation. The results show that sulfur fumigation significantly and specifically changed the small metabolites (molecular weight lower than 1000 Da) and polysaccharides of DR at both qualitative and quantitative levels. Multifaceted molecular and cellular mechanisms involving chemical transformations (e.g., acidic hydrolysis, sulfonation, and esterification) and histological damage were found to be responsible for the chemical variations in sulfur-fumigated DR (S-DR). The research outcomes provide a chemical basis for further comprehensive and in-depth safety and functional evaluations of sulfur-fumigated DR.
UR - http://www.scopus.com/inward/record.url?scp=85162904109&partnerID=8YFLogxK
U2 - 10.1021/acsomega.3c02729
DO - 10.1021/acsomega.3c02729
M3 - Journal article
SN - 2470-1343
VL - 8
SP - 21293
EP - 21304
JO - ACS Omega
JF - ACS Omega
IS - 23
ER -
