{"id":436,"date":"2024-12-01T07:45:00","date_gmt":"2024-12-01T07:45:00","guid":{"rendered":"https:\/\/8039c1d0385554959.temporary.link\/wordpress\/?p=436"},"modified":"2025-08-05T06:13:00","modified_gmt":"2025-08-05T06:13:00","slug":"impact-of-alkali-concentration-in-delignification-treatment-for-cellulose-extraction-from-rice-straw","status":"publish","type":"post","link":"https:\/\/jjeci.net\/index.php\/2024\/12\/01\/impact-of-alkali-concentration-in-delignification-treatment-for-cellulose-extraction-from-rice-straw\/","title":{"rendered":"Impact of Alkali Concentration in Delignification Treatment for Cellulose Extraction from Rice Straw"},"content":{"rendered":"\n

Authors:<\/strong> Maha Mohammad AL-Rajabi, Kang Jia En, Safa Senan Mahmod, Muhammad Faiq Abdullah<\/p>\n\n\n\n

DOI: https:\/\/doi.org\/10.48103\/jjeci7122024<\/a><\/p>\n\n\n\n

JORDANIAN JOURNAL OF ENGINEERING AND CHEMICAL INDUSTRIES (JJECI)<\/a><\/p>\n\n\n\n

Pages: 94-102<\/p>\n\n\n

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Abstract<\/span><\/strong><\/h3>\n
Rice straw is an abundant agricultural byproduct with great potential as a sustainable source of cellulose. This study investigates <\/span>the effect of sodium hydroxide concentration on the extraction of cellulose from rice straw through alkali delignification. Sodium <\/span>hydroxide concentrations ranging from 3% to 11% were applied at a constant temperature of 60 \u00b0C for 60 minutes. The objective <\/span>was to assess the impact of alkali concentration on cellulose yield and structural properties. Results showed that increasing alkali<\/span>
concentration led to a reduction in cellulose yield. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron <\/span>Microscopy (SEM) confirmed the effective removal of lignin, hemicellulose, and impurities across all concentrations. Additionally, <\/span>the crystallinity index (CI) increased from 47.85% to 51.37% as alkali concentration rose, indicating successful delignification. <\/span>However, a balance must be considered, as lower alkali concentrations, while environmentally friendlier and yielding more<\/span>
cellulose, resulted in lower purity, with FTIR, SEM, and XRD analyses revealing residual impurities in the extracted cellulose. <\/span>This eco-friendly process offers a promising method for converting agricultural waste into valuable cellulose, contributing to <\/span>sustainable industrial practices.<\/span>
Paper type:<\/strong> Research paper<\/span>
Keywords:<\/strong> Cellulose, extraction, alkali delignification,rice straw.<\/span>
Citation:<\/strong> AL-Rajabi, M, En, K , Mahmod, S and M, Abdullah \u201cImpact of Alkali Concentration in Delignification Treatment for Cellulose Extraction <\/span>from Rice Straw \u201d, Jordanian Journal of Engineering and Chemical Industries, 
Vol. 7, No.3, pp: 94-102 (2024). <\/strong><\/span><\/pre>\n
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