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首页> 外文期刊>Wood Science and Technology >Characterization of black locust (Robinia pseudoacacia L.) heartwood extractives: identification of resveratrol and piceatannol
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Characterization of black locust (Robinia pseudoacacia L.) heartwood extractives: identification of resveratrol and piceatannol

机译：刺槐（Robinia pseudoacacia L.）心材提取物的表征：白藜芦醇和苦瓜酚的鉴定

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摘要

Robinia pseudoacacia L. heartwood is characterized by a very high natural durability. However, a significant difference was observed between the mature and juvenile heartwood, the latter presenting less durability against fungi decay, which could be attributed to lower extractive content. In order to elucidate this idea, extractives from mature and juvenile heartwoods of black locust trees were investigated. Results showed that extractive and phenolic contents were higher in mature than in juvenile heartwoods. The identification of phenolic compounds by UPLC-DAD-MS/MS revealed, for the first time, the presence of resveratrol and piceatannol. These two stilbenes as well as the flavonoid dihydrorobinetin were present at the highest level in mature heartwood, and as they are known antifungals, they could account for the great durability of mature heartwood. The stilbenes were detected in significant amounts particularly in mature heartwood where piceatannol reached a level tenfold higher than that reported for Japanese knotweed roots, the primary natural source of these stilbenes, whereas resveratrol level was comparable with reported values. As resveratrol and piceatannol receive increasing demand for nutraceutical, cosmetic and, possibly, pharmaceutical purposes, due to their beneficial health effects, this study underlines the use of R. pseudoacacia as a promising sustainable and economical source of resveratrol and piceatannol.
机译：刺槐刺槐心材的特征在于非常高的天然耐久性。但是，在成熟心材和少年心材之间观察到了显着差异，后者对真菌的腐烂表现出较低的持久性，这可能归因于较低的提取物含量。为了阐明这一想法，研究了刺槐黑色成熟心材和少年心材的提取物。结果表明，成熟物中的提取物和酚类含量高于少年心材。通过UPLC-DAD-MS / MS鉴定酚类化合物，首次揭示了白藜芦醇和苦味酚的存在。在成熟心材中，这两种芪和黄酮类二氢罗宾汀的含量最高，并且由于它们是已知的抗真菌剂，它们可以解释成熟心材的出色耐久性。特别是在成熟心材中检测到了斯蒂芬苯酚，尤其是在成熟的心材中，苦味酚的水平比报道的虎杖根（这些斯蒂芬酚的主要天然来源）高出十倍，而白藜芦醇水平与报道值相当。由于白藜芦醇和青豆甾醇由于其有益的健康作用而对营养保健品，化妆品以及可能的药物用途的需求不断增加，因此该研究强调了伪阿拉伯芥作为白藜芦醇和青豆甾醇的有前途的可持续经济来源的用途。

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    《Wood Science and Technology》 |2014年第5期|1005-1017|共13页
  • 作者

    Therese Sergent; Stephane Kohnen; Benoit Jourez; Cecile Beauve; Yves-Jacques Schneider; Caroline Vincke;

  • 作者单位

    Institut des Sciences de la Vie, UCLouvain, Croix du Sud, 1348 Louvain-la-Neuve, Belgium;

    Celabor Scrl, Avenue du Parc, 38, 4650 Chaineux, Belgium;

    Laboratory of Wood Technology, Direction of Forest Environment, Department of Natural and Agricultural Environment Studies, Public Service of Wallonia, Avenue Marechal Juin, 23, 5030 Gembloux, Belgium;

    Celabor Scrl, Avenue du Parc, 38, 4650 Chaineux, Belgium;

    Institut des Sciences de la Vie, UCLouvain, Croix du Sud, 1348 Louvain-la-Neuve, Belgium;

    Earth and Life Institute, UCLouvain, Croix du Sud, 2/9, L7.05.09, 1348 Louvain-la-Neuve, Belgium;

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