Pre-monsoon and monsoon surveillance of aflatoxin and fungal contamination in maize-based poultry feeds and ingredients in Tamil Nadu, India.

IF 2.5 3区农林科学 Q2 CHEMISTRY, APPLIED

Food additives & contaminants. Part B, Surveillance Pub Date : 2026-03-23 DOI:10.1080/19393210.2026.2627452

Chandren Jayapradha, Dhananjeyan Balachandar, Sivakumar Subbarayan, Thirunavukkarasu Marudhamuthu, Antonio Logrieco, Vaikuntavasan Paranidharan

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Abstract

A statewide survey was conducted in Tamil Nadu, India, to characterise seasonal variation in aflatoxin contamination in maize-based poultry feeds and ingredients. A total of 312 samples (156 each during pre-monsoon and monsoon 2023-2024) representing maize, cereal products, oilseed meals, and compound feeds were collected from mills, farms, and retail outlets. Total aflatoxins (AFB1, AFB2, AFG1 and AFG2) were quantified by HPLC-FLD, with water activity (aw) and mycobiota profiling. Monsoon samples showed higher aw in ingredients (0.637-0.686) and feeds (0.624-0.664), with increased AFB1 incidences. Several maize-intensive categories exceeded the EU maximum limit of 20 µg/kg AFB1 in feed during the monsoon, with the highest level in maize DDGS (329 µg/kg) and Layer Mash II (64.7 µg/kg). Fungal isolates were dominated by section Flavi, A. flavus, A. parasiticus, and A. nomius. The study highlights a monsoon-linked, maize-centric risk and underscores the need for risk-based procurement, controlled storage, and enhanced seasonal surveillance.

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印度泰米尔纳德邦以玉米为原料的家禽饲料和原料中黄曲霉毒素和真菌污染的季风前和季风监测。

在印度泰米尔纳德邦进行了一项全州范围的调查，以确定玉米基家禽饲料和配料中黄曲霉毒素污染的季节性变化特征。从工厂、农场和零售店共收集了312份玉米、谷物产品、油籽粕和复合饲料样本（雨季前和2023-2024年季风期各156份）。用HPLC-FLD定量测定总黄曲霉毒素（AFB1、AFB2、AFG1和AFG2），并测定水活度（aw）和真菌群谱。季风样品中，原料（0.637 ~ 0.686）和饲料（0.624 ~ 0.664）的aw较高，AFB1的发病率也较高。雨季期间，几个玉米集约化品种的饲料中AFB1含量超过了欧盟20µg/kg的最高限值，其中玉米DDGS（329µg/kg）和层粕II（64.7µg/kg）含量最高。真菌分离株以黄螨、黄螨、寄生螨和野螨为主。该研究强调了与季风相关的以玉米为中心的风险，并强调了基于风险的采购、控制储存和加强季节性监测的必要性。

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来源期刊

Food additives & contaminants. Part B, Surveillance 农林科学-毒理学

CiteScore

5.30

自引率

10.30%

发文量

审稿时长

2.7 months

期刊介绍： Food Additives & Contaminants: Part B publishes surveillance data indicating the presence and levels of occurrence of designated food additives, residues and contaminants in foods, food supplements and animal feed. Data using validated methods must meet stipulated quality standards to be acceptable and must be presented in a prescribed format for subsequent data-handling. Food Additives & Contaminants: Part B restricts its scope to include certain classes of food additives, residues and contaminants. This is based on a goal of covering those areas where there is a need to record surveillance data for the purposes of exposure and risk assessment. The scope is initially restricted to: Additives - food colours, artificial sweeteners, and preservatives; Residues – veterinary drug and pesticide residues; Contaminants – metals, mycotoxins, phycotoxins, plant toxins, nitrate/nitrite, PCDDs/PCFDs, PCBs, PAHs, acrylamide, 3-MPCD and contaminants derived from food packaging. Readership: The readership includes scientists involved in all aspects of food safety and quality and particularly those involved in monitoring human exposure to chemicals from the diet. Papers reporting surveillance data in areas other than the above should be submitted to Part A . The scope of Part B will be expanded from time-to-time to ensure inclusion of new areas of concern.