Conversion of anionic derivatives of fermented cellulose and evaluation of their antifungal effect

doi:10.3785/j.issn.1008-9497.2023.03.012

Journal of Zhejiang University (Science Edition)

2023, Vol. 50

Issue (3): 346-350 DOI: 10.3785/j.issn.1008-9497.2023.03.012

Chemistry

Conversion of anionic derivatives of fermented cellulose and evaluation of their antifungal effect

Yanli CUI¹(

),Shunyao LI²,Tianyu ZHANG³,Minyan ZHANG¹,Xiangxiang BAO¹,Yangyi MAO¹

^1.Department of Chemistry，Zhejiang University，Hangzhou 310058，China
^2.Zhengzhou College of Finance and Economics，Zhengzhou 450044，China
^3.Wuhan University，Wuhan 430072，China

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Abstract

In this paper it is reported firstly that fermented cellulose was anionized by one pot method with sodium 3-chloro-2-hydroxypropane sulfonate in aqueous phase, and sodium hydroxide solution was used as reactant, solvent, and catalyst. The reaction conditions were mild, the degree of substitution was moderate, and the conversion rate was acceptable. The characterization of cellulose derivative was studied by means of elemental analysis, nuclear magnetic resonance,FTIR and so on. The antifungal biological evaluation of cellulose derivative was carried out, and the results showed that it had certain antifungal properties. The ecological compatibility of cellulose derivatives confirms that they can be applied in archaeology, agriculture and epidemic prevention, etc.

Key words： fermented cellulose anionic derivative antifungal property one pot method

Received: 25 November 2022 Published: 19 May 2023

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	Yanli CUI
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	Xiangxiang BAO
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Cite this article:

Yanli CUI, Shunyao LI, Tianyu ZHANG, Minyan ZHANG, Xiangxiang BAO, Yangyi MAO. Conversion of anionic derivatives of fermented cellulose and evaluation of their antifungal effect. Journal of Zhejiang University (Science Edition), 2023, 50(3): 346-350.

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https://www.zjujournals.com/sci/EN/Y2023/V50/I3/346

发酵纤维素阴离子衍生物的转化与抗菌应用评价

在水相条件下用阴离子醚化剂（3-氯-2-羟基丙磺酸钠）通过一锅法对经微生物改造的纤维素阴离子化，其中的氢氧化钠溶液既作为反应物、溶剂，又作为催化剂，反应条件温和、取代度适中、转化率较高。采用元素分析、核磁共振、傅里叶红外光谱等表征方法研究了纤维素衍生物的取代度和结构，结果表明，获得的纤维素产物已阴离子化。对纤维素衍生物进行了抑制真菌评估，证明其具其有一定的抑菌特性。纤维素衍生物的生态亲和性决定其可应用于文物保护、农业和防疫等领域。

关键词： 发酵纤维素, 阴离子衍生物, 抗菌作用, 一锅法

Fig.1 Cellulose structure and its hydrogen bond distribution

Fig.2 Etherification of fermented cellulose with CHPASA

Table 1 Effect of temperature on degree of substitution of anionic cellulose

Table 2 Effect of CHPASA/cellulose molar ratio on degree of substitution of anion cellulose

Table 3 Effect of NaOH/CHPASA molar ratio on degree of substitution of anion cellulose

Fig.3 2D ¹H-¹³C NMR spectrum of cellulose derivative Y1

Fig.4 Comparison of infrared spectra between cellulose derivative Y1 and fermented cellulose

Table 4 Antifungal effect of cellulose derivative Y1


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