The effect of chemical pre-treatment of industrial waste of licorice root on pulp properties in bio-refinery concept

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TAKZARE Z.; KERMANIAN H.; RAMAZANI O.; RASOOLY GARMAROODY E.; ABDOLKHANI A.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2018 | Volume:32 | Issue:4 (61) Page(s): 518-529

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Title

The effect of chemical pre-treatment of industrial waste of licorice root on pulp properties in bio-refinery concept

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Keywords

Licorice rootQ2

alkaline cookingQ1

ligninQ2

WRVQ1

crystallinityQ2

Abstract

In this study, the liquorice roots (Glycyrrhiza glabra) which were extracted in the Liquorice factory of Kerman, was used as raw material. The residues, after pre-hydrolysis with 2% sulfuric acid at 130° C in 60 minutes was cooked at temperature of 170° C, chemicals charge of 20% NaOH, and four cooking times of 15, 30, 60 and 90 minutes and liquor to fiber ratio of 7: 1. Soda pulps yield, lignin percentage, water retention value (WRV), viscosity and crystallinity were measured. Results showed that at longer cooking time, pulp yield and lignin percentage are decreased and WRV increased. Also, pulp viscosity after 30, 45 minutes cooking was increased by increasing in cooking time which is probably the consequence of false viscosity. In addition, based on characterization of pulp samples by XRD, progressive cooking times from 15 to 45 minutes, decreased the sample crystallinity and at 60 minutes time, its value was increased. Correlating the pulp viscosity with trend of lignin removal on progressive cooking time, it can be due to precipitation of hemicellulose like xylan on the crystalline region of cellulose chain. Therefore, according to the results and based on bio-refinery concept, cooking time of 30 minutes can be suggested as the option time for production of high value-added products in scarification process.

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APA: Copy

TAKZARE, Z., KERMANIAN, H., RAMAZANI, O., RASOOLY GARMAROODY, E., & ABDOLKHANI, A.. (2018). The effect of chemical pre-treatment of industrial waste of licorice root on pulp properties in bio-refinery concept. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 32(4 (61) ), 518-529. SID. https://sid.ir/paper/109457/en

Vancouver: Copy

TAKZARE Z., KERMANIAN H., RAMAZANI O., RASOOLY GARMAROODY E., ABDOLKHANI A.. The effect of chemical pre-treatment of industrial waste of licorice root on pulp properties in bio-refinery concept. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2018;32(4 (61) ):518-529. Available from: https://sid.ir/paper/109457/en

IEEE: Copy

Z. TAKZARE, H. KERMANIAN, O. RAMAZANI, E. RASOOLY GARMAROODY, and A. ABDOLKHANI, “The effect of chemical pre-treatment of industrial waste of licorice root on pulp properties in bio-refinery concept,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 32, no. 4 (61) , pp. 518–529, 2018, [Online]. Available: https://sid.ir/paper/109457/en

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