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Lapachol from Indonesian teak (Tectona grandis) wood waste as a natural additive for alkaline cooking

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Abstract

Anthraquinone has been widely utilized in the pulp and paper industry as a catalyst for alkaline cooking; however, its application has been recently restricted due to its potential carcinogenic effects. Hence, safer alternatives to anthraquinone have been explored. Agro-industrial by-products have been utilized as sustainable sources of value-added materials. In this study, teak (Tectona grandis) wood waste from Gunung Kidul, Indonesia, which naturally contains lapachol, was utilized as a biocatalyst to enhance delignification and improve pulp yield in alkaline cooking for pulp and paper production. The use of lapachol as a cooking catalyst was investigated for kraft, soda, and prehydrolysis soda cooking. Lapachol accelerated delignification and retained carbohydrate in all three alkaline cooking methods, with its effect being more pronounced in kraft cooking than in soda cooking. This study demonstrates that teak wood extractives with lapachol are promising sustainable catalysts for alkaline cooking.

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Acknowledgements

Acacia crassicarpa was kindly provided by Mr. Azka Aman, PT. Riau Andalan Pulp and Paper. Eucalyptus pellita was kindly provided by Mr. Kosyke Imai, PT. Tanjungenim Lestari Pulp and Paper.

Funding

Esty Octiana Sari is grateful to the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan for providing a scholarship to conduct the current research under the MEXT Special Scholarship Program on Trans-World Professional Human Resources Management for a Doctoral Course.

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EOS and HO contributed to the study conception and design. Data were collected by EOS, with SPU contributing to the experiments. Data analysis was performed by EOS. The GC–MS and NMR analyses were performed by AN-I. EOS wrote the first draft of this manuscript. HO, SPU, and AN-I reviewed the manuscript. The study was supervised by Hiroshi Ohi and Akiko Nakagawa-Izumi.

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Correspondence to Akiko Nakagawa-Izumi.

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The authors have no relevant financial or non-financial interest to disclose.

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Sari, E.O., Utami, S.P., Nakagawa-Izumi, A. et al. Lapachol from Indonesian teak (Tectona grandis) wood waste as a natural additive for alkaline cooking. Wood Sci Technol 58, 627–647 (2024). https://doi.org/10.1007/s00226-024-01537-2

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  • DOI: https://doi.org/10.1007/s00226-024-01537-2

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