As the demand for dried timber has been increasing worldwide, drying of timbers is required to supply the demand in the manufacturing industries of furniture and other interior woodwork. During the drying process, some condensation will occur, resulting in liquids' emission, which requires disposal. In the liquid condensate, there are many substances at low concentrations that make their recovery uneconomic. After revealing the potential of the substances available in these condensates, biotechnological processes can be employed to produce high value-added products. This condensate contains tree sap, including proteins, enzymes, and many natural compounds such as terpenoids, alkaloids, phenolic compounds. Thus, it is considered that these natural compounds might be beneficial in pharmaceutical applications. Natural compounds such as phenolic compounds are bioactive substances that have antioxidant, antimicrobial, and cytotoxic activities.

This study was aimed to characterize the condensate from the Rf-vacuum drying process of beech (Fagus sylvatica L.), walnut (Juglans regia L.), and restharrow (Onosis arvensis L.) in terms of antioxidant capacity, total phenol content, antimicrobial activity, and cytotoxicity. Obtained data revealed that condensates from the Rf-vacuum drying process inhibited the growth of both S. epidermidis and E. coli significantly.

Graphic Abstract

中文翻译：

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林业工业中射频真空木材干燥过程中冷凝物的抗氧化、抗菌和细胞毒性活性

随着全球对干燥木材的需求不断增加，需要对木材进行干燥以满足家具和其他室内木制品制造行业的需求。在干燥过程中，会发生一些冷凝，导致液体排放，需要处理。冷凝液中含有许多低浓度物质，回收不经济。在揭示这些冷凝物中可用物质的潜力后，可以采用生物技术工艺生产高附加值产品。这种冷凝物含有树液，包括蛋白质、酶和许多天然化合物，如萜类化合物、生物碱、酚类化合物。因此，认为这些天然化合物可能有益于药物应用。

此研究的目的是从山毛榉的RF-真空干燥过程（表征冷凝水青冈L.），胡桃（胡桃L.），和restharrow（Onosis荬L.）中的抗氧化能力，总酚含量计，抗菌活性和细胞毒性。获得的数据显示，来自 Rf 真空干燥过程的冷凝物显着抑制了表皮葡萄球菌和大肠杆菌的生长。

图形摘要