木材科学与技术2025，Vol.39Issue(2)：30-37,46,9.DOI:10.12326/j.2096-9694.2024132
黑格心材乙醇抽提物对木材颜色与耐腐性能的影响
Effect of Ethanol Extract from Albizia odoratissima Heartwood on Wood Color and Decay Resistance
摘要
Abstract
The development of plant-based preservatives represents an efficacious strategy for advancing the sustainable wood protection technology.In this study,the extraction process of phenolics from Albizia odoratissima heartwood was optimized through a combination of one-way methodology and response surface methodology.The effects of extractive impregnation treatments on wood color and decay resistance were subsequently evaluated.The results demonstrated that the optimal extraction process parameters were an ethanol volume fraction of 75%,a liquid-solid ratio of 30∶1 mL/g,and an extraction time of 12.3 h.Under these conditions,the total flavonoids extraction yield was 17.29 mg/g,the total polyphenols extraction yield was 114.83 mg/g.After being treated with extract solutions with concentrations of 20 mg/mL and 80 mg/mL(following a 15-minute treatment period under vacuum conditions of-0.1 MPa,the specimen was pressurized at 0.8 MPa for a duration of 30 minutes),the extract retention in Pinus massoniana sapwood was 12.50 kg/m3 and 48.32 kg/m3,respectively.The color difference(△E)between untreated and treated wood(with solution concentration of 20 mg/mL and 80 mg/mL)reached 34.51 and 43.57,respectively,while the △E between Albizia odoratissima heartwood and the treated wood decreased from 31.54 to 5.24 and 12.24,respectively.The treatment resulted in a decrease in lightness(L*)and blue-yellow axis(b*)of wood and an increase in green-red axis(a*)of that.After being rotted by Coriolus versicolor and Poria placenta,the mass loss rate of the wood treated with a 20 mg/mL extract solution decreased by 40.13%and 42.01%,respectively,and that of the wood treated with an 80 mg/mL extract solution decreased by 65.70%and 56.69%,respectively,compared to that of the untreated sample.It is indicated that the extracts significantly improved decay resistance of the Pinus massoniana sapwood.The Albizia odoratissima heartwood extract proved to be a suitable raw material for the development of plant-based wood preservatives.关键词
黑格心材/乙醇抽提物/马尾松边材/耐腐性能/色差Key words
Albizia odoratissima heartwood/ethanol extract/Pinus massoniana sapwood/decay resistance/color difference分类
林学引用本文复制引用
秦理哲,于洋,张玉静,胡拉,唐盈盈,杨章旗..黑格心材乙醇抽提物对木材颜色与耐腐性能的影响[J].木材科学与技术,2025,39(2):30-37,46,9.基金项目
广西民族大学科研基金引进人才科研启动项目"构树叶蛋白木材胶黏剂的制备及其交联改性机理研究"(2021KJQD10) （2021KJQD10）
广西自然科学基金项目"高效植物源防腐剂的制备及其在木材中的酶催化固着研究"(2025GXNSFAA069275) （2025GXNSFAA069275）
广西林科院研究团队项目"人工林木材环保防腐及胶合耐久性提升技术研发"(2024RT03) （2024RT03）
广西民族大学研究生教育创新计划项目"香合欢心材提取物的抑菌活性及其耐腐特性研究"(gxun-chxs2022084) （gxun-chxs2022084）
广西科技基地和人才专项"松树资源培育共性关键技术创新与产业化应用"(桂科AD19254004). （桂科AD19254004）
