Journals / Türkiye Ormancılık Dergisi / 2009 / Sayı: 1

A study on color change in brutian pine (Pinus brutia ten.) extractives exposed to heat treatment

Kızılçam (Pinus brutia ten.) ekstraktif maddelerinde ısıl işlem uygulaması sonucu oluşan renk değişimleri üzerine araştırma

Pages
95–100
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results indicate that prolonged temperature and time result mainly in decreased lightness and increased redness.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Color of wood is changed due to drying, and wood extractives play an important role in color change.
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Key Findings & Data:Results indicate that prolonged temperature and time result mainly in decreased lightness and increased redness.
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Conclusion & Impact:The correlation coefficient (R2) between color difference and applied time and temperature conditions is found to be 0.88.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:ısıl işlem · özüt · çam

Abstract

Color of wood is changed due to drying, and wood extractives play an important role in color change. In this study, color change in wood extractives obtained from heartwood of brutian pine which were under heat treatment for different time and temperature intervals was investigated. Color change was classified using CIE lab system. Results indicate that prolonged temperature and time result mainly in decreased lightness and increased redness. The correlation coefficient (R2) between color difference and applied time and temperature conditions is found to be 0.88.

Özet

Odunun rengi kurutmaya bağlı olarak değişmektedir ve odun ekstraktifleri oluşan renk değişmesinde etkili olan bileşiklerdendir. Bu çalışmada kızılçam öz odunundan elde edilen ekstraktif maddelerde farklı sıcaklık ve sürelerde ısıl işlem uygulanmasıyla meydana gelen renk değişimi incelenmiştir. Renk değerlerinin sınıflandırılmasında CIE lab sistemi kullanılmıştır. Elde edilen sonuçlarda uygulama sıcaklığının artırılması ve sürenin uzatılmasıyla çoğunlukla parlaklığın azaldığı ve kırmızılığın arttığı görülmüştür. Renk değişiminin uygulama sıcaklığı ve süresiyle ilişkisinin korelasyon R2=0.88 düzeyinde olduğu tespit edilmiştir.

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Cite This Article

YAŞAR, S. (2009). A study on color change in brutian pine (Pinus brutia ten.) extractives exposed to heat treatment. Türkiye Ormancılık Dergisi, Sayı: 1, 95–100. https://ajindex.com/articles/358622

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References (6)

  1. Assarson A., Akerlund G. 1966. Studies on wood resin, especially the change in chemical composition during seasoning of the wood. Part 4. The Comparison of the Petroleum Ether Soluble Nonvolatile Extractives from Fresh Spruce, Pine, Birch and Aspen Wood. Svensk Papperstidn, 16:517-525.
  2. Back, E. 2000. The locations and morphology of resin components in the wood. In: Back EL, AllenLA (eds) Pitch control, wood resin and deresination, 1st ed., TAPPI, Atlanta, GA Back E. 2002. Pattern of parenchyma and canal resin composition in softwoods and hardwoods. Wood Sci, 48:167-170.
  3. Fengel, D., Wegener, G. 1984. Wood, chemistry, ultrastructure, reactions, Walter de Gruyter. Berlin. Holmbom, B., Eckerman, C., 1983. Tall oil constituents in kraft pulping-effect of pulping temperature. TAPPI J 66(4):108–109.
  4. Hunt, R., W., G. 1995 Measuring colour, second edition. (Ellis Horwood series in applied science and industrial technology). Ellis Horwood Limited. Nuopponen, M., Vuorinen, T., Jamsa, S., Viitaniem, P. 2003. The effects of a heat treatment on the behaviour of extractives in softwood studied by FTIR spectroscopic methods. Wood Sci Technol 37: 109–115.
  5. Ralston, A. 1948. Fatty acids and their derivates. Wiley, New York. Sehlstedt-Persson, M. 2003. Colour responses to heat-treatment of extractives and sap from pine and spruce. 8th International IUFRO Wood Drying Conferernce, Brasov, Rumania, 459-464.
  6. Sundqvist, B., 2002. Color response of scots pine (Pinus sylvestris), norway spruce (Picea abies) and birch (Betula pubescens) subjected to heat treatment in capillary phase. Holz als Roh- und Werkstoff. 60:106-114.