Highly efficient isolation and purification of high‐purity tea saponins from industrial camellia oil production by porous polymeric adsorbents

BACKGROUND Recovery of high‐purity tea saponin (TS), a promising non‐ionic surfactant with well‐documented properties, is one of the major challenges to broadening its industrial applications. In this study, an innovative and sustainable strategy for the highly‐efficient purification of TS was devel...

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Bibliographic Details
Published in:Journal of the science of food and agriculture 2023-11, Vol.103 (14), p.7006-7020
Main Authors: Wang, Mingming, Chen, Qiqi, Hua, Xiao, Yang, Ruijin
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
adsorption performance
Controllability
Desorption
Dismantling
Endothermic reactions
Ethanol
ethanol‐driven desorption
Hydrophobicity
Industrial applications
Ionic surface active agents
Micelles
operational stability
Petroleum production
porous polymeric adsorbents
Purification
Purity
Recovery
Saponins
Selective adsorption
tea saponin (TS)
the adsorption mechanism
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Summary:BACKGROUND Recovery of high‐purity tea saponin (TS), a promising non‐ionic surfactant with well‐documented properties, is one of the major challenges to broadening its industrial applications. In this study, an innovative and sustainable strategy for the highly‐efficient purification of TS was developed by using well‐designed highly‐porous polymeric adsorbents. RESULTS The prepared Pp‐A with controllable macropores (~96 nm) and appropriate surface hydrophobic properties was found more favorable for achieving high adsorption efficiency towards TS/TS‐micelles. Kinetic results showed the adsorption follows the pseudo‐second‐order model (R2 = 0.9800), and the Langmuir model is more qualified to explicate the adsorption isotherms with Qe‐TS ~ 675 mg g−1. Thermodynamic studies revealed the monolayer adsorption of TS was an endothermic process that was conducted spontaneously. Interestingly, ethanol‐driven desorption (90% v/v ethanol) of TS was rapidly ( 90%. Notably, Pp‐A exhibited excellent operational stability and is of high potential for long‐term industrial application. CONCLUSION Results ensured the practical feasibility of the prepared porous adsorbents in purifying TS, and the proposed methodology is a promising industrial‐scale purification strategy. © 2023 Society of Chemical Industry.
ISSN:0022-5142
1097-0010
DOI:10.1002/jsfa.12787