Acid modified attapulgite loaded with bacillomycin D for mold inhibition and mycotoxin removal,Food Chemistry

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Acid modified attapulgite loaded with bacillomycin D for mold inhibition and mycotoxin removal
Food Chemistry ( IF 8.5 ) Pub Date : 2024-02-15 , DOI: 10.1016/j.foodchem.2024.138762
Jing Sun ₁ , Zaixu Wang ₁ , Yongjin Dai ₁ , Moran Zhang ₁ , Xinyi Pang ₁ , Xiangfei Li ₁ , Yingjian Lu ₁

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Molds and mycotoxins pose severe threats to health. Bacillomycin D (BD) can effectively inhibit mold growth. Attapulgite (ATP) can provide a good carrier for antimicrobial agents. Natural ATP was acid-modified to obtain H-ATP. It was used to load BD to obtain a novel composite material (H-ATP-BD). The results showed H-ATP had better adsorption performance than ATP. BD was adsorbed up to 93.13 % by adding 30 mg H-ATP and stirring at 40 ℃ for 120 min. Fourier transform infrared spectra (FTIR), size and zeta potential, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) results confirmed successful loading of BD onto H-ATP. The composite showed good inhibition of and adding 0.6 % H-ATP-BD composite was effective in removing 89.06 % of aflatoxin B (AFB) at 50 °C. Model fitting indicated that AFB removal was a spontaneous exothermic reaction. This research will lay the foundation for the development of efficient and green antimicrobial and toxin-reducing materials.

中文翻译：

负载杆菌霉素 D 的酸改性凹凸棒石可抑制霉菌并去除霉菌毒素

霉菌和霉菌毒素对健康构成严重威胁。芽孢杆菌D（BD）能有效抑制霉菌生长。凹凸棒石（ATP）可以为抗菌药物提供良好的载体。天然ATP经酸修饰得到H-ATP。将其负载BD得到新型复合材料(H-ATP-BD)。结果表明H-ATP比ATP具有更好的吸附性能。加入30 mg H-ATP，40 ℃搅拌120 min，BD吸附率达93.13%。傅里叶变换红外光谱 (FTIR)、尺寸和 zeta 电位、X 射线衍射 (XRD) 和 X 射线光电子能谱 (XPS) 结果证实 BD 成功负载到 H-ATP 上。该复合材料对黄曲霉毒素B（AFB）表现出良好的抑制作用，添加0.6% H-ATP-BD复合材料在50℃下可有效去除89.06%的黄曲霉毒素B（AFB）。模型拟合表明，AFB 去除是自发的放热反应。该研究将为开发高效、绿色抗菌减毒材料奠定基础。

更新日期：2024-02-15

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