Investigation on biological pre-treatment of hornbeam wood with two white rot fungi and their effects on the optical and strength properties of produced CMP pulp

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ZAHERI S.; Asadpour Atouee Gh.; RESALATI H.; OHNO K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Wood and Forest Science and Technology Year:2020 | Volume:27 | Issue:1 Page(s): 73-89

Download Full-Text

Persian Verion

View:

375

Download:

Cites:

Information Journal Paper

Title

Investigation on biological pre-treatment of hornbeam wood with two white rot fungi and their effects on the optical and strength properties of produced CMP pulp

Author(s)

ZAHERI S. | Asadpour Atouee Gh. | RESALATI H. | OHNO K. | Issue Writer Certificate

Keywords

CMP pulpQ1

Fungal pre-treatmentQ2

Optical propertiesQ1

Strength propertiesQ1

White-rotQ1

Abstract

Background and Objectives: Today, due to environmental and economic reasons, the preparation of biomechanical pulps has expanded. In this study, hornbeam wood chips were exposed to two kinds of white rotting fungi, Pleurotus eryngii and Irpex lacteus from the forests of northern Iran for three weeks. They were cultivated according to the relevant standards. After three weeks, the chips were washed with cold water to remove fungal residues and after that, the chips air dried. Then, the chips were cooked with CMP process (temperature 170 ◦ C, L/W ratio 5: 1 and 90 minutes). 60 g/m2 hand sheets were prepared from produced CMP pulps and the optical and Strength properties of pulp were investigated. Materials and Methods: The sawn boards from the height equal to the chest of hornbeam stems were air dried under the shadow for 2 months. After qualitative evaluation of boards with dimensions of 3×30×150 (thickness × width × length) cm in terms of the absence of cracks and fungal defects as well as reaction woods, from sapwood of boards, samples with dimensions 2×2×0. 7 cm were cut for normal durability test. The prepared samples were transferred to the culture medium and exposed to the destruction of the mentioned fungi for 3 weeks so that the relevant tests could be performed after the end of the destruction period. Results: On the based on the results, it became clear that the Irpex lacteus fungus in the period of destruction has acted like the white rot fungus, Pleurotus eryngii. It can be said that both fungi have the same destructive power and they destroyed the sapwood of the hornbeam about the same intensity. The average weight loss percentage of hornbeam sapwoods was 4. 13% due to the destruction of Irpex lacteus and 3. 95% by Pleurotus eryngii. The results of variance analysis of the tensile index of paper prepared from the hornbeam sapwood after 3 weeks of exposure to decaying white fungi showed that the rate of increase in tensile index by Irpex lacteus is about 9. 6% more than Pleurotus eryngii. Also, the average percentage reduction in the tear index in paper prepared from the hornbeam sapwood due to the destruction of Irpex lacteus was 14. 2% lower than that of Pleurotus eryngii. The average percentage increase in the burst index of samples in paper prepared from the hornbeam sapwood due to the destruction of Irpex lacteus was 5. 74 more than that of Pleurotus eryngii. Considering the results related to the Optical properties of the papers, it can be concluded that the opacity of paper obtained from the wood chips treated with Irpex lacteus decreased compared to Pleurotus eryngii, as well as the brightness of the paper from the wood chips treated with Irpex lacteus compared to Pleurotus eryngii has been further declined. The denser texture of the paper from the treated wood chips reduces the reflection of light inside the paper fiber network, which in turn reduces the opacity. Conclusion: The optical and Strength properties of the pulps have been investigated. Evaluations on the papers showed that the Strength properties of the produced papers were higher after the pretreatment of the hornbeam chips with the Irpex lacteus over 3 weeks compared to that of pretretead with the Pleurotus eryngii. Considering the Optical properties of papers, it can be concluded that the opacity reduced because of the more compact texture of the paper obtained from the treated wood chips and therefore the reduction of the light reflection inside the paper fiber network. The reason for the decrease in brightness in fungal treatments is the formation of chromophore groups during the incubation and pulping period.

Cites

No record.

References

No record.

Cite

APA: Copy

ZAHERI, S., Asadpour Atouee, Gh., RESALATI, H., & OHNO, K.. (2020). Investigation on biological pre-treatment of hornbeam wood with two white rot fungi and their effects on the optical and strength properties of produced CMP pulp. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 27(1 ), 73-89. SID. https://sid.ir/paper/364827/en

Vancouver: Copy

ZAHERI S., Asadpour Atouee Gh., RESALATI H., OHNO K.. Investigation on biological pre-treatment of hornbeam wood with two white rot fungi and their effects on the optical and strength properties of produced CMP pulp. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2020;27(1 ):73-89. Available from: https://sid.ir/paper/364827/en

IEEE: Copy

S. ZAHERI, Gh. Asadpour Atouee, H. RESALATI, and K. OHNO, “Investigation on biological pre-treatment of hornbeam wood with two white rot fungi and their effects on the optical and strength properties of produced CMP pulp,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 27, no. 1 , pp. 73–89, 2020, [Online]. Available: https://sid.ir/paper/364827/en

Related Journal Papers