Adsorption conditions optimization of the attapulgite on Lactobacillus cells

Authors

ZHAO Yuping, School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai’an, Jiangsu 223003, China
TANG Zixin, School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai’an, Jiangsu 223003, China
YANG Li, School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai’an, Jiangsu 223003, China
FENG Yunqi, School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai’an, Jiangsu 223003, China

Abstract

The best adsorption conditions of the attapulgite on Lactobacillus cells were optimized. Different kinds and concentrations of acids and alkalis were used to pretreat the attapulgite, the results showed that 1 mol/L H₃PO₄ was the best. In pH 6, 0.4 mol/L phosphate buffer system, adsorption of attapulgite on Lactobacillus cells basically completed in 60 min, and reached to the adsorption equilibrium. Adsorption of attapulgite on Lactobacillus cells could well fit the Langmuir adsorption isotherm equation. With the increase of temperature, the equilibrium adsorption of attapulgite on Lactobacillus cells increased higher, which was an endothermic process. When Lactobacillus cells concentration increases, the equilibrium adsorption capacity was also increasing. The adsorption process belonged to the preferential adsorption.

Publication Date

2-28-2015

First Page

46

Last Page

49

DOI

10.13652/j.issn.1003-5788.2015.01.010

Recommended Citation

Yuping, ZHAO; Zixin, TANG; Li, YANG; and Yunqi, FENG (2015) "Adsorption conditions optimization of the attapulgite on Lactobacillus cells," Food and Machinery: Vol. 31: Iss. 1, Article 10.
DOI: 10.13652/j.issn.1003-5788.2015.01.010
Available at: https://www.ifoodmm.cn/journal/vol31/iss1/10

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