Selection of the elite genotype among the five different Eucalyptus hybrid pulpwood clones for social and farm forestry
Source abstract
Abstract
Abstract To meet the raw material demands of the paper industry, social and farm forestry programs require the selection of improved Eucalyptus clones with superior wood properties. In this study, five improved Eucalyptus hybrid clones 9, 21, 4, 16, and 41 were evaluated. These clones were selected on the basis of their field performance. Clone ITC 2315, which performs well in commercial pulp mills, was used as the reference clone. The objective of this study was to assess the kappa number, pulp yield, and pulp properties of the five test clones and compare their performance with the reference clone. Kraft pulping of the extracted wood chips was carried out using a 19 % active alkali charge at 165 °C. Clones with higher pulp yield exhibited lower kappa numbers, indicating effective lignin removal during pulping. The resulting kraft pulps were bleached using a sequence of 70 % chlorine dioxide, 1 % hydrogenperoxide, and 30 % chlorinedioxide. Handsheets were prepared from both the unbleached and bleached pulps, and their properties including brightness, tensile strength, burst index, bulk, and opacity were evaluated. Clones 41, 16, 21 demonstrated higher pulp yields than the reference clone and showed favourable pulp and paper properties. These results suggest that these inter-hybrid clones are more suitable for papermaking applications.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Lignin and Wood Chemistry · Advanced Cellulose Research Studies · Wood Treatment and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
PG & Research Department of Biotechnology and Bioinformatics , Holy Cross College , Tiruchirappalli , 620002 , Tamil Nadu , India
Laboratory of Molecular Bioremediation and Nanobiotechnology, Department of Environmental Biotechnology , School of Environmental Sciences, Bharathidasan University , Tiruchirappalli , 620 024 , Tamil Nadu , India
References (25)
Show source-provided references
1. Bajpai, P. (1999). Application of enzymes in the pulp and paper industry. Biotechnol. Prog. 15: 147–157, https://doi.org/10.1021/bp990013k.10.1021/bp990013k ↗
2. Bijok, N., Fiskari, J., Richard, R.G., and Alopaeus, V. (2022). Modelling the kraft pulping process on a fibre scale by considering the intrinsic heterogeneous nature of the lignocellulosic feedstock. Chem. Eng. J. 438: 135548, https://doi.org/10.1016/j.cej.2022.135548.10.1016/j.cej.2022.135548 ↗
3. Buzała, K.P., Kalinowska, H., Przybysz, P., and Małachowska, E. (2017). Conversion of various types of lignocellulosic biomass to fermentable sugars using kraft pulping and enzymatic hydrolysis. Wood Sci. Technol. 5: 873–885.10.1007/s00226-017-0916-7 ↗
4. Chen, Q., Ni, Y., and He, Z. (2012). Substitution of high-yield-pulp for hardwood bleached kraft pulp in paper production and its effect on alkenyl succinic anhydride sizing. BioResources 7: 1462–1473, https://doi.org/10.15376/biores.7.2.1462-1473.10.15376/biores.7.2.1462-1473 ↗
5. Colodette, J.L., Gomide, J.L., Júnior, D.L., and Gomes, C.M. (2007). Effect of pulp delignification degree on fiber line performance and bleaching effluent load. BioResources 2: 223–234, https://doi.org/10.15376/biores.2.2.223-234.10.15376/biores.2.2.223-234 ↗
6. Costa, M. and Colodette, J. (2007). The impact of kappa number composition on Eucalyptus kraft pulp bleachability. Braz. J. Chem. Eng. 24: 61–71, https://doi.org/10.1590/s0104-66322007000100006.10.1590/S0104-66322007000100006 ↗
7. Dutta, T., Sengupta, R., Sahoo, R., Sinha Ray, S., Bhattacharjee, A., and Ghosh, S. (2007). A novel cellulase free alkaliphilic xylanase from alkali tolerant penicillium citrinum: production, purification and characterization. Lett. Appl. Microbiol. 44: 206–211, https://doi.org/10.1111/j.1472-765x.2006.02042.x.10.1111/j.1472-765X.2006.02042.x ↗
8. Fardim, P., Ferreira, M.M., and Durán, N. (2005). Determination of mechanical and optical properties of eucalyptus kraft pulp by NIR spectrometry and multivariate calibration. J. Wood Chem. Technol. 25: 267–279, https://doi.org/10.1080/02773810500366748.10.1080/02773810500366748 ↗
9. Gellerstedt, G. and Li, J. (1996). An HPLC method for the quantitative determination of hexeneuronic acid groups in chemical pulps. Carbohydr. Res. 294: 41–51, https://doi.org/10.1016/s0008-6215(96)00198-x.10.1016/S0008-6215(96)90615-1 ↗
10. Glasser, W.G., Loos, R., Cox, B., and Cao, N. (2017). Melt-blown compostable polyester films with lignin. Tappi J. 16: 111–121, https://doi.org/10.32964/tj16.3.111.10.32964/TJ16.3.111 ↗
11. Grace, T.M. and Tran, H. (2009). The effect of dead load chemicals in the kraft pulping and recovery system. TAPPI J. 8: 18–24, https://doi.org/10.32964/tj8.7.18.10.32964/TJ8.7.18 ↗
12. Jiang, Z.H., Van Lierop, B., and Berry, R. (2000). Hexenuronic acid groups in pulping and bleaching chemistry. TAPPI J. 6: 35–43.
13. Lal, M., Dutt, D., Tyagi, C., Upadhyay, J., and Upadhyay, S. (2010). Characterization of anthocephalus cadamba and its delignification by kraft pulping. TAPPI J. 9: 30–37, https://doi.org/10.32964/tj9.3.30.10.32964/TJ9.3.30 ↗
14. Li, J. and Gellerstedt, G. (1997). The contribution to kappa number from hexeneuronic acid groups in pulp xylan. Carbohydr. Res. 302: 213–218, https://doi.org/10.1016/s0008-6215(97)00125-0.10.1016/S0008-6215(97)00125-0 ↗
15. Mohlin, U.B. and Hornatowska, J. (2006). Fibre and sheet properties of acacia and Eucalyptus. Appita J. J. Tech. Assoc. Aust. N. Z. Pulp Pap. Ind. 59: 225.
16. Monje, P.G., González-García, S., Moldes, D., Vidal, T., Romero, J., Moreira, M.T., and Feijoó, G. (2010). Biodegradability of kraft mill TCF biobleaching effluents: application of enzymatic laccase-mediator system. Water Res. 44: 2211–2220, https://doi.org/10.1016/j.watres.2009.12.047.10.1016/j.watres.2009.12.047 ↗
17. Neto, C.P., Seca, A., Fradinho, D., Coimbra, M., Domingues, F., Evtuguin, D., Silvestre, A., and Cavaleiro, J. (1996). Chemical composition and structural features of the macromolecular components of hibiscus cannabinus grown in Portugal. Ind. Crops Prod. 5: 189–196, https://doi.org/10.1016/0926-6690(96)89448-9.10.1016/0926-6690(96)89448-9 ↗
18. Perala, J. and Kirby, R. (2001). Advanced sequence kappa factor control, part I: DE kappa control. TAPPI J. 84: 1–11.
19. Perez, I., Lopez, F., Gomez Ariza, J.L., and Jimenez, L. (2000). Comparitive study of paper sheets from olive tree wood pulp obtained by soda, sulphite or kraft pulping. Bioresour. Technol. 71: 83–86, https://doi.org/10.1016/s0960-8524(99)00044-9.10.1016/S0960-8524(99)00044-9 ↗
20. Pulkkinen, I., Fiskari, J., and Alopaeus, V. (2010). New model for predicting tensile strength and density of eucalyptus handsheets based on an activation parameter calculated from fiber distribution characteristics. Holzforschung 64: 201–209, https://doi.org/10.1515/hf.2010.030.10.1515/hf.2010.030 ↗
21. Raj, S.V., Narmadha, N., Alagumani, T., and Chinnadurai, M. (2014). Forecasting of demand and supply of pulpwood for paper industries in Tamil Nadu, India: an artificial neural network model. Indian For. 140: 1230–1234.
22. Shackford, L.D., Santos, C.A., Colodette, J.L., and Alves, E.F. (2009). Optimizing alkaline extraction for Eucalyptus kraft pulp bleaching. TAPPI J. 8: 12–19, https://doi.org/10.32964/tj8.1.12.10.32964/TJ8.1.12 ↗
23. Vincent, R., Rueff, M., and Voillot, C. (2010). Prediction of handsheet tensile strength by computational simulation of structure. TAPPI J. 9: 15–19, https://doi.org/10.32964/tj9.1.15.10.32964/TJ9.1.15 ↗
24. Wimmer, R., Downes, G., Evans, R., Rasmussen, G., and French, J. (2002). Direct effects of wood characteristics on pulp and handsheet properties of Eucalyptus globulus. Holzforschung 56: 244–252, https://doi.org/10.1515/hf.2002.040.10.1515/HF.2002.040 ↗
25. Xu, E.C. (2001). Chemical treatment in mechanical pulping, part 4: H2O2 bleaching and pulp property development. TAPPI J. 84: 42–46.