为解决尾巨桉木材成分抽提消耗大量的制浆漂白液及助剂、加重废水对环境的污染、造成巨大的抽提物天然资源浪费等问题,采用热解-气相色谱/质谱(Py-GC/MS)研究了尾巨桉新旧木片抽提物的主要化学成分.结果表明:尾巨桉新鲜木片苯/醇抽提物的成分为1,2,3,4,4a,9,10,10a-八氢-1,4a-二甲基-7-(1-甲乙叉)-1-菲酸甲酯(19.49%)、3,7-二羟基-9-甲氧基-1-甲基-6氢-二苯并[B,D]吡喃-6-酮(5.01%)、1,2,3,4,4a,9,10,10a-八氢-1,4a-二甲基-7-(1-甲乙叉)-1-菲酸(4.47%)、麦角甾-4,6,22-三烯-3β-醇(4.07%)、2,6-二甲氧基-苯酚(3.94%)、十六酸(2.96%)、乙酸(2.86%)、1-(3-甲氧基苯基)-乙酮(2.83%)、2-甲氧基-苯酚(2.47%)、日尔曼醇(2.00%)等145种化合物;陈旧木片苯/醇抽提物的成分为麦角甾-4,6,22-三烯-3β-醇(23.33%)、马钱子碱(9.61%)、(5β)-胆固醇-8(14)-烯-24-醇(6.86%)、油酸(6.14%)、2-甲基-苯酚(5.63%)、1-巯基-2-十七烷酮(4.06%)、2,4-二苄基-5,8-二甲氧基-6-甲基-1-萘酚(3.86%)、十六酸(3.65%)、β-谷甾醇(3.12%)、4-氯-2-氟苯胺(2.29%)、(3β,4α,5α)-4,14-二甲基-9,19-环麦角甾-24(28)-烯-3-醇(2.19%)、17-氯-7-十七烯(2.09%)等55种化合物.分析结果表明,尾巨桉新旧木片苯/醇抽提物在生物能源、生物医药、化妆品、护肤品及香料等领域有潜在的应用前景.
The extraction of Eucalyptus urophydis (E. urophydis) wood consumes a lot of bleaching agents and other additives, aggravates the environmental pollution due to wastewater, and causes a great consumption of extractives. In order to solve these problems, Py-GC/MS was used to analyze the main chemical components of benzene/ ethanol extractives from flesh and old E. urophydis chips. The results show that there are 145 compounds in the benzene/ethanol extractives from flesh E. urophydis chip, including 1-phenanthrenecarboxylic acid, 1,2,3,4,4α, 9,10, 10α-octahydro-1,4α-dimethyl-7-( 1-methylethyl )-, methyl ester ( 19.49% ), 3,7-dihydroxy-9-methoxy-1- methyl-6H-dibenzo [ B, D ] pyran- 6-one ( 5.01% ), 1-phenanthrenecarboxylic acid, 1,2,3,4,4α, 9,10,10a-octa- hydro-1,4α-dimethyl-7-( 1-methylethyl) (4. 47% ), ergosta-4,6,22-trien-3β-ol (4. 07% ), phenol ,2,6-dimethoxy (3. 94% ) , hexadecanoic acid (2. 96% ), acetic acid (2.86%), ethanone ,1-(3-methoxyphenyl) (2. 83% ), phenol ,2- methoxy (2.47%), germanicol (2. 00% ), etc. , and that there are 55 compounds in the extractives from old E. urophydis chip, including ergosta-4,6,22-trien-3β-ol (23.33%), brucine (9.61%), chol-8 (14)-en-24-ol, (5β) (6.86%), oleic acid (6. 14% ), phenol, 2-methyl (5.63%), 1-mercapto-2-heptadecanone (4. 06% ), 2,4- dibenzyl-5,8-dimethoxy-6-methyl-l-naphthol (3.86%), hexadecanoic acid (3.65%),β-sitosterol (3.12%), 4- chloro-2-fluoroaniline (2. 29% ), 9,19-cycloergost-24 (28) -en-3-ol,4,14-dimethyl-, (3β,4α ,5α) (2. 19% ), 7- heptadecene, 17-chloro (2.09%), etc. It is indicated that the benzene/ethanol extractives from both fresh and old E. uropydis chips are of potential application prospects in the fields of biological energy, biological medicine, cosmetic, skin care and flavor.