Adsorption of aflatoxin B1 to corn by-products

Joseph Hubert Galani; Yue Liu; Lei Xia; Yun Yun Gong; Caroline Orfila

doi:10.1016/j.foodchem.2023.138212

Adsorption of aflatoxin B1 to corn by-products

Joseph Hubert Galani
, Yue Liu
, Lei Xia
, Yun Yun Gong
, Caroline Orfila

Research output: Contribution to journal › Article › peer-review

Abstract

The adsorption of aflatoxin B1 (AFB1) to natural fiber materials prepared from corn by-products was investigated in this study. The results showed that corn cob powder (CCP) dose, particle size, time (0.25–24 h), temperature (4, 20, 37, 50 and 100 °C) and pH (2–8), had significant effects on adsorption. The maximum adsorption (98%) was with particles 500–355 µm in size at 20 °C for 8 h, at the dose of 50 mg mL−1. The adsorption fitted pseudo-second-order model and Langmuir isotherm well. Besides, CCP had a higher adsorption capacity to AFB1 than any single cell wall components of corn, which indicated that capillary effect happened in cell wall might be the main reason for adsorption. The results also suggested that CCP could reduce AFB1 content from both liquid and solid food matrixes. Briefly, CCP displayed promising properties that could be developed in nature-based practical applications for food aflatoxin decontamination.

Original language	English
Pages (from-to)	138212
Journal	Food Chemistry
Volume	440
DOIs	https://doi.org/10.1016/j.foodchem.2023.138212
Publication status	Published - 15 Dec 2023

Keywords

Adsorption
Aflatoxin B1
By-products
Corn cob
Zea Mays

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@article{c136c279e2f64ded9a330f7fe385510b,

title = "Adsorption of aflatoxin B1 to corn by-products",

abstract = "The adsorption of aflatoxin B1 (AFB1) to natural fiber materials prepared from corn by-products was investigated in this study. The results showed that corn cob powder (CCP) dose, particle size, time (0.25–24 h), temperature (4, 20, 37, 50 and 100 °C) and pH (2–8), had significant effects on adsorption. The maximum adsorption (98\%) was with particles 500–355 µm in size at 20 °C for 8 h, at the dose of 50 mg mL−1. The adsorption fitted pseudo-second-order model and Langmuir isotherm well. Besides, CCP had a higher adsorption capacity to AFB1 than any single cell wall components of corn, which indicated that capillary effect happened in cell wall might be the main reason for adsorption. The results also suggested that CCP could reduce AFB1 content from both liquid and solid food matrixes. Briefly, CCP displayed promising properties that could be developed in nature-based practical applications for food aflatoxin decontamination.",

keywords = "Adsorption, Aflatoxin B1, By-products, Corn cob, Zea Mays",

author = "Galani, \{Joseph Hubert\} and Yue Liu and Lei Xia and Gong, \{Yun Yun\} and Caroline Orfila",

year = "2023",

month = dec,

day = "15",

doi = "10.1016/j.foodchem.2023.138212",

language = "English",

volume = "440",

pages = "138212",

journal = "Food Chemistry",

issn = "0308-8146",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Adsorption of aflatoxin B1 to corn by-products

AU - Galani, Joseph Hubert

AU - Liu, Yue

AU - Xia, Lei

AU - Gong, Yun Yun

AU - Orfila, Caroline

PY - 2023/12/15

Y1 - 2023/12/15

N2 - The adsorption of aflatoxin B1 (AFB1) to natural fiber materials prepared from corn by-products was investigated in this study. The results showed that corn cob powder (CCP) dose, particle size, time (0.25–24 h), temperature (4, 20, 37, 50 and 100 °C) and pH (2–8), had significant effects on adsorption. The maximum adsorption (98%) was with particles 500–355 µm in size at 20 °C for 8 h, at the dose of 50 mg mL−1. The adsorption fitted pseudo-second-order model and Langmuir isotherm well. Besides, CCP had a higher adsorption capacity to AFB1 than any single cell wall components of corn, which indicated that capillary effect happened in cell wall might be the main reason for adsorption. The results also suggested that CCP could reduce AFB1 content from both liquid and solid food matrixes. Briefly, CCP displayed promising properties that could be developed in nature-based practical applications for food aflatoxin decontamination.

AB - The adsorption of aflatoxin B1 (AFB1) to natural fiber materials prepared from corn by-products was investigated in this study. The results showed that corn cob powder (CCP) dose, particle size, time (0.25–24 h), temperature (4, 20, 37, 50 and 100 °C) and pH (2–8), had significant effects on adsorption. The maximum adsorption (98%) was with particles 500–355 µm in size at 20 °C for 8 h, at the dose of 50 mg mL−1. The adsorption fitted pseudo-second-order model and Langmuir isotherm well. Besides, CCP had a higher adsorption capacity to AFB1 than any single cell wall components of corn, which indicated that capillary effect happened in cell wall might be the main reason for adsorption. The results also suggested that CCP could reduce AFB1 content from both liquid and solid food matrixes. Briefly, CCP displayed promising properties that could be developed in nature-based practical applications for food aflatoxin decontamination.

KW - Adsorption

KW - Aflatoxin B1

KW - By-products

KW - Corn cob

KW - Zea Mays

U2 - 10.1016/j.foodchem.2023.138212

DO - 10.1016/j.foodchem.2023.138212

M3 - Article

SN - 0308-8146

VL - 440

SP - 138212

JO - Food Chemistry

JF - Food Chemistry

ER -

Adsorption of aflatoxin B1 to corn by-products

Abstract

Keywords

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