Glucomannan, Glucomannan Combined with Bentonite and Modified Glucomannan： Assessment of in Vitro Mycotoxins Absorption Effects

XU Xuemei; QI Desheng; ZHANG Niya; HE Xuejun; WANG Lingling; YIN Jiajia; ZHU Kehua

doi:10.3969/j.issn.1006-267x.2013.12.026

2013 , Vol. 25 >Issue 12: 2973 - 2980

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.12.026

Feed Security

Glucomannan, Glucomannan Combined with Bentonite and Modified Glucomannan： Assessment of in Vitro Mycotoxins Absorption Effects

XU Xuemei ,
QI Desheng ,
ZHANG Niya ,
HE Xuejun ,
WANG Lingling ,
YIN Jiajia ,
ZHU Kehua

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1. College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
2. Qingdao Weilan Biological Co., Ltd., Qingdao 266061, China

Received date: 2013-08-07

Online published: 2013-11-19

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Abstract

This experiment was conducted to assess in vitro mycotoxins absorption effects of glucomannan (GM), GM combined with bentonite and modified GM. The adsorption and desorption effects of GM, GM combined with bentonite 1 (combination Ⅰ), 4: 1 (combination Ⅱ), 2: 1 (combination Ⅲ) and 1: 1 (combination Ⅳ), receptively] and anhydride modified GM on aflatoxin B₁ (AFB₁), zearalenone (ZEN) and deoxynivalenol (DON) by in vitro isothermal adsorption and desorption experiments. The results showed as follows: 1) the isothermal adsorptions of GM, GM combined with bentonite and anhydride modified GM on AFB₁ and ZEN were fitted with Langmuir equation, and the adsorption style was monolayer adsorption, but that on DON was not fitted with Langmuir and Freundlich equations. 2) The maxium adsorption quality (AQ_max) on AFB₁ (250.00 μg/g) and ZEN (1 776.00 μg/g) presented in combination Ⅳ at pH 2.0. The AQ_max on AFB₁ presented in combinations Ⅳ and Ⅲ (217.39 μg/g) at pH 8.0. The AQ_max on ZEN presented in combination Ⅳ (1 324.00 μg/g) at pH 8.0. The adsorption of different adsorbents on ZEN was very low. 3) The cumulate desorption quality rates of AFB₁ and ZEN in combination Ⅳ were lower than those in other combinations both at pH 2.0 and 8.0. Under conditions in the present study, GM combined with bentonite at 1: 1 shows the best mycotoxins adsorption effects and adsorption stability.

Key words： mycotoxins; glucomannan; bentonite; modified glucomannan; adsorption; desorption

Cite this article

XU Xuemei , QI Desheng , ZHANG Niya , HE Xuejun , WANG Lingling , YIN Jiajia , ZHU Kehua . Glucomannan, Glucomannan Combined with Bentonite and Modified Glucomannan： Assessment of in Vitro Mycotoxins Absorption Effects[J]. Chinese Journal of Animal Nutrition, 2013 , 25(12) : 2973 -2980 . DOI: 10.3969/j.issn.1006-267x.2013.12.026

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