Ozone treatment for improving the solubility of cellulose extracted from palm fiber

Pujokaroni Agustu Sholeh; Ohtani Yoshito; Ichiura Hideaki

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Ozone treatment for improving the solubility of cellulose extracted from palm fiber

机译：用于改善棕榈纤维中纤维素溶解度的臭氧处理

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We investigated effects of ozone treatment on solubility of cellulose and chemical composition in cellulose extracted from palm fiber. The initial holocellulose, alpha-cellulose, and lignin contents of the extracted cellulose were 88.0, 81.9, and 8.75%, respectively. The extracted cellulose was treated with ozone and NaOH solution. Ozone treatment for 5 hr at 40 degrees C using 3% citric acid decreased the lignin content from 8.75 to 2.71%. Under these conditions, the degree of polymerization (DP) of the cellulose decreased to 29 from 160 and the carboxyl content increased to 2.05 mmol/g. When the solid phase was treated with NaOH after ozone treatment, the mass of the solid phase decreased as the ozone treatment time increased. The lowest mass was 0.43 g. Additionally, the mass of cellulose regenerated from the liquid phase increased with increasing treatment time. The highest mass of regenerated cellulose was 0.54 g. The masses of the solid phase and regenerated cellulose obtained without ozone treatment under the same conditions were 0.76 and 0.18 g, respectively. These results suggest that ozone treatment improves the solubility of cellulose by converting hydroxyl groups in the cellulose to carboxyl groups and reducing the DP.

机译：我们研究了臭氧处理对从棕榈纤维中提取的纤维素的溶解性和化学成分的影响。提取纤维素的初始全纤维素、α纤维素和木质素含量分别为88.0%、81.9%和8.75%。提取的纤维素用臭氧和NaOH溶液处理。用3%柠檬酸在40℃下臭氧处理5小时，木质素含量从8.75%降至2.71%。在这些条件下，纤维素的聚合度（DP）从160降低到29，羧基含量增加到2.05 mmol/g。当固相在臭氧处理后用NaOH处理时，固相的质量随着臭氧处理时间的增加而减少。最低质量为0.43 g。此外，从液相再生的纤维素质量随着处理时间的增加而增加。再生纤维素的最高质量为0.54 g。在相同条件下，未经臭氧处理获得的固相和再生纤维素的质量分别为0.76 g和0.18 g。这些结果表明，臭氧处理通过将纤维素中的羟基转化为羧基并降低DP来改善纤维素的溶解性。

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来源
《Journal of Applied Polymer Science》 |2021年第2期|共11页
作者
Pujokaroni Agustu Sholeh; Ohtani Yoshito; Ichiura Hideaki;
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作者单位

Ehime Univ United Grad Sch Agr Sci Matsuyama Ehime Japan;

Kochi Univ Fac Agr &

Marine Sci 200 Monobe Otsu Nankoku Kochi 7838502 Japan;

Kochi Univ Fac Agr &

Marine Sci 200 Monobe Otsu Nankoku Kochi 7838502 Japan;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
cellulose; oxidized cellulose; ozone; regenerate cellulose; solubility;

机译：纤维素;氧化纤维素;臭氧;再生纤维素;溶解度;

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2. Chitosan/Nanocrystalline Cellulose Biocomposites Based on Date Palm (Phoenix Dactylifera L.) Sheath Fibers [J] . Abeer M.Adel, Amira M.El-Shafei, Atef A.Ibrahim, 可再生材料杂志(英文) . 2019,第006期
3. The Technology Parameters Optimization of Extracting Natural Cellulose Fibers from Eulaliopsis Binata [J] . 曲丽君, 郭肖青, 由瑞华, 东华大学学报：英文版 . 2010,第004期
4. The Technology Parameters Optimization of Extracting Natural Cellulose Fibers from Eulaliopsis Binata [J] . QU Li-jun, GUO Xiao-qing, YOU Rui-hua, 东华大学学报（英文版） . 2010,第004期
5. Polyethylene green composites reinforced with cellulose fibers (coir and palm fibers): effect of fiber surface treatment and fiber content [J] . Rungsima Chollakup, Wirasak Smitthipong, Wuttinan Kongtud Journal of Adhesion Science and Technology: The International Journal of Theoredtical and Basic Aspects of Adhesion Science and Its Applications in All Areas of Technology . 2013,第12期

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6. HIGH SOLUBILITY OF CELLULOSE EXTRACTED FROM TUNISIAN DATE PALM (&ITPHOENIX DACTYLIFERA&IT) IN A NEW IONIC LIQUID [J] . Marzouk Wiem, Zarrougui Ramzi, Majdoub Hatem Cellulose Chemistry and Technology: International Journal for Physics, Chemistry and Technology of Cellulose and Lignin . 2017,第7a8期

机译：在新的离子液体中从突尼斯枣棕榈（＆Itphoenix dactylifera＆IT）提取的纤维素高溶解度
7. Alkaline Treatment of Oil Palm Frond Fibers by Using Extract of Oil Palm EFB Ash for Better Adhesion toward Polymeric Matrix [J] . Warman Fatra, Randi Sanjaya, Zulfansyah Zulfansyah, Journal of Engineering and Technological Sciences . 2015,第5期

机译：用油棕EFB灰分提取物碱处理油棕纤维，以更好地粘附于聚合物基体
8. Morphological and Spectroscopic Analysis of Cellulose Nanocrystals Extracted from Oil Palm Empty Fruit Bunch Fiber [C] . Y.K. Dasan, A.H. Bhat, A. Faiz Scientific Conference of Microscopy Society Malaysia . 2015

机译：油棕榈空束纤维提取纤维素纳米晶体的形态学和光谱分析
9. OZONE-CELLULOSE STUDIES: PHYSICO-CHEMICAL PROPERTIES OF OZONE OXIDIZED CELLULOSIC AND LIGNOCELLULOSIC MATERIALS [D] . GODSAY, MADHU P. 1985

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10. Dioxane Treatment to Improve Microbial Digestibility of Cellulosic Fibers [O] . Y. W. Han, J. W. Pence, A. W. Anderson 1975

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12. OZONE TREATMENT OF SOLUBLE ORGANICS IN PRODUCED WATER [R] . 2002

机译：臭氧处理生产水中的可溶性有机物

Ozone treatment for improving the solubility of cellulose extracted from palm fiber

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