• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2021 Fiscal Year Final Research Report

Research on exposure estimation of inorganic nanoparticles contained in / adhered to food

Research Project

  • PDF
Project/Area Number 19K05924
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionNational Institute of Health Sciences

Principal Investigator

Yoshinari Suzuki  国立医薬品食品衛生研究所, 食品部, 室長 (40469987)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywordsナノ粒子 / ICP-MS / 食事性曝露
Outline of Final Research Achievements

A preparation method for extracting silver nanoparticles (Ag-NPs) from solid samples such as food products for sp-ICP-MS was investigated, and an enzyme-based extraction method was found to be appropriate. When this method was applied to oyster samples, Ag-NPs with an average particle size of 24-32 nm and a maximum particle size of 63-361 nm were detected. Using the composite samples, we estimated the average Japanese exposure to Ag-NPs to be 1.8 μg/person/day, or 15 billion particles/person/day. The health risk from dietary exposure to Ag-NPs was estimated to be small.

Free Research Field

食品衛生学

Academic Significance and Societal Importance of the Research Achievements

ナノマテリアル (NMs) の工業的利用の増加に伴い、食品を介したNMsのヒトへの曝露による安全性への影響が懸念されている。また、新型コロナの蔓延に伴い、抗菌材として使用されている銀ナノ粒子( Ag-NP) によるリスクに関心が高まっている。本研究は、このようなAg-NPに関して、平均的な食事性曝露量を評価したものである。推定されたAg-NPの耐容摂取量と食事性曝露量を比較し、Ag-NPの健康リスクが低いことを明らかとした。

URL: 

Published: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi