Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (12): 1712-1718.DOI: 10.19894/j.issn.1000-0518.230183

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Preparation of Phytic Acid-Based Porous Humectant Materials and Their Application to Tobacco Moisturization

Wan-Chen ZANG1, Zhe JIN1, Cheng-Zhe CUI1, Zhao-Wei HE1, Fei HUANG1, Ye YUAN2, Feng LI1()   

  1. 1.Jilin Tobacco Industry Company,Changchun 130000,China
    2.Key Laboratory of Polyoxometalate Science of Ministry of Education,Northeast Normal University,Changchun 130024,China
  • Received:2023-06-28 Accepted:2023-11-13 Published:2023-12-01 Online:2024-01-03
  • Contact: Feng LI
  • About author:lifeng@jilintobacco.com.cn
  • Supported by:
    the Jilin Tobacco Industry Co., Ltd(JSYFZX-2021-03)

Abstract:

Phytic acid which contains a large number of hydroxyl groups is commonly used as the tobacco wetting agent, however, multiple hydrogen bonding inside the polysaccharide molecule particles results in a dense structure, which seriously affects the water absorption capacity and water storage capacity of the wetting agent. In order to break the tightly packed structure, benzoic acid is copolymerized with phytate molecules to prepare phytate-based porous humectant materials. Nitrogen adsorption experiments show that the specific surface area of the phytate based porous humectant material is increased by a factor of 18 compared to the original phytate molecules; water gas adsorption experiments show that the water gas adsorption capacity is increased by a factor of 3.1 compared to the phytate molecules due to the polymerisation of benzoic acid with phytate, which destroys the original tightly packed structure between the phytate molecules. At 25 ℃ and 30% RH, the 72 h equilibrium moisture content of tobacco with the phytate based porous humectant material was improved by 27.92% compared with that of conventional humectant.

Key words: Phytic acid, Porous material, Moisturizing, Tobacco

CLC Number: