Global Sourcing of Low-Inorganic Arsenic Rice Grain

  • PDF / 1,419,884 Bytes
  • 9 Pages / 595.276 x 790.866 pts Page_size
  • 78 Downloads / 188 Views

DOWNLOAD

REPORT


ORIGINAL PAPER

Global Sourcing of Low‑Inorganic Arsenic Rice Grain Manus Carey1 · Caroline Meharg1 · Paul Williams1 · Ernest Marwa2 · Xiao Jiujin1,3 · Júlia Gomes Farias1,4 · P. Mangala C. S. De Silva5 · Antonio Signes‑Pastor1 · Ying Lu6 · Fernando Teixeira Nicoloso4 · Laurie Savage1 · Katrina Campbell1 · Christopher Elliott1 · Eureka Adomako7 · Andy J. Green8 · Eduardo Moreno‑Jiménez9 · Ángel Antonio Carbonell‑Barrachina10 · Eridha Ayu Triwardhani1 · Febbyandi Isanda Pandiangan1 · Parvez I. Haris11 · Youssef F. Lawgali12 · Alessia Sommella13 · Massimo Pigna13 · Catherine Brabet14 · Didier Montet14 · Keston Njira15 · Michael J. Watts16 · Andrew A. Meharg1  Received: 22 August 2019 / Revised: 21 October 2019 / Accepted: 29 October 2019 © The Author(s) 2019

Abstract Arsenic in rice grain is dominated by two species: the carcinogen inorganic arsenic (the sum of arsenate and arsenite) and dimethylarsinic acid (DMA). Rice is the dominant source of inorganic arsenic into the human diet. As such, there is a need to identify sources of low-inorganic arsenic rice globally. Here we surveyed polished (white) rice across representative regions of rice production globally for arsenic speciation. In total 1180 samples were analysed from 29 distinct sampling zones, across 6 continents. For inorganic arsenic the global x̃ was 66 μg/kg, and for DMA this figure was 21 μg/kg. DMA was more variable, ranging from