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Complaint Case Studies White Powder of Natto

Last updated on March 6, 2025.

1.Overview

When I bought natto, there was a white powder like a mold on the surface.

Photo of white powder of natto
White powder of natto

2.Results of the survey

The quality of natto is decreasing.
The white mold-like powder is a crystal of tyrosine and there is no problem in eating it.

Published on March 8, 2007

Inquiries to this page

RIKEN, Medical Care Bureau Institute of Hygiene

Phone: 045-370-9451

Phone: 045-370-9451

Fax: 045-370-8462

E-Mail address [email protected]

Return to the previous page

Page ID: 997-623-190

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