The corn milling industry has widely accepted the presence of bright greenish-yellow fluorescence under a black light as a presumptive indicator of aflatoxin (a poison produced by the mold Aspergillus flavus). This test was applied to wheat, oats, barley, rice, coconut, white corn, yellow corn, peanuts, sorghum, and soybeans, and evaluated in the laboratory. Our study supported the use of bright greenish-yellow fluorescence as a presumptive test for aflatoxin in wheat, oats, barley, corn, and sorghum.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC187179PMC
http://dx.doi.org/10.1128/am.30.2.337-338.1975DOI Listing

Publication Analysis

Top Keywords

bright greenish-yellow
12
greenish-yellow fluorescence
12
wheat oats
8
oats barley
8
fluorescence aflatoxin
4
aflatoxin agricultural
4
agricultural commodities
4
corn
4
commodities corn
4
corn milling
4

Similar Publications

A Facile Electrochemical Strategy for Achieving a High-Conductivity Polypyrrole Derivative with Intrinsic Metallic Transport as a High-Performance Electrochromic Conducting Polymer Film.

Nano Lett

November 2024

Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.

Conjugated polymer electrochromic materials (PECMs) with tailored optical and electrical properties are applied in smart windows, electronic displays, and adaptive camouflage. The limitation in the electrical conductivity results in slow and monotonous color switching. We present a polypyrrole film incorporated with a toluene--sulfonic group (PPy-TSO-F), via a one-step electrodeposition technique.

View Article and Find Full Text PDF

Multicolor photoluminescence of Cu clusters modulated using surface ligands.

Chem Sci

August 2024

DST Unit of Nanoscience (DST UNS), Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras Chennai 600036 India

Copper nanoclusters exhibit unique structural features and their molecular assembly results in diverse photoluminescence properties. In this study, we present ligand-dependent multicolor luminescence observed in a Cu cluster, primarily protected by -carborane-9,12-dithiol (-CBDT), featuring an octahedral Cu inner kernel enveloped by eight isolated copper atoms. The outer layer of the metal kernel consists of six bidentate -CBDT ligands, in which carborane backbones are connected through μ-sulphide linkages.

View Article and Find Full Text PDF

Dipyrrolonaphthyridinediones (DPNDs) entered the chemical world in 2016. This cross-conjugated donor-acceptor skeleton can be prepared in two steps from commercially available reagents in overall yield ≈15-20% (5 mmol scale). DPNDs can be easily and regioselectively halogenated which opens an avenue to numerous derivatives as well as to π-expansion.

View Article and Find Full Text PDF

Spices have been known to be highly contaminated commodities with mycotoxins. The Codex Alimentarius reports that nutmeg is particularly contaminated with aflatoxins (AFs) and ochratoxin A (OTA). To eliminate contaminated commodities, visual sorting and bright greenish-yellow fluorescence (BGYF) sorting are used as low-cost technologies in production engineering.

View Article and Find Full Text PDF

Objective evaluation of changes in serum transmittance over time using a portable color digitizer.

Leg Med (Tokyo)

March 2024

Department of Forensic Medicine, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka, Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan.

Forensic pathologists empirically understand that postmortem changes can decrease serum transparency and change its color. Such changes are potential indicators for estimating postmortem intervals; however, reports on color changes focusing on postmortem changes in serum are scarce. To elucidate the effect of postmortem intervals on serum levels, we quantitatively evaluated and investigated the relationship between serum color and time using venous blood samples obtained from three healthy male volunteers.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!