Sarria-Villa Rodrigo A, Gallo-Corredor José A, Benítez-Benítez Ricardo
University of Cauca, Faculty of Exact Natural Sciences and Education, Department of Chemistry, GIQA Group, Ph.D, Popayán, Colombia.
University of Cauca, Faculty of Exact Natural Sciences and Education, Department of Chemistry, QPN Group, PhD, Popayán, Colombia.
Heliyon. 2021 Aug 20;7(8):e07834. doi: 10.1016/j.heliyon.2021.e07834. eCollection 2021 Aug.
Rosins and turpentines present in pine resins have been widely used both industrially (coatings, electronics and paint) and pharmaceuticals (ointments). Among the main components of these matrices is abietic acid. This study focuses on the characterization and evaluation of the quality of rosins and turpentines in addition to the quantification of abietic acid in rosins. Rosin and spirit of turpentine were obtained separately through the distillation method from and resin, species grown in the Department of Cauca-Colombia. Resin-tapping was made using the traditional method (cup and gutter). Quality indicators were determined according to ASTM standards. Solubility tests and identification of functional groups were performed on the obtained rosin by ultraviolet-visible spectroscopy (UV-Vis), infrared (IR) and nuclear magnetic resonance (H-NMR). The abietic acid present in the rosins was determined by high performance liquid chromatography (HPLC). According to their high acid value and low percentage of unsaponifiable matter, the extracted rosins are considered of medium-high quality. Quantification of abietic acid by HPLC showed 14.85 ± 0.24% and 16.09 ± 0.11% for and rosin respectively.
松脂中含有的松香和松节油已在工业（涂料、电子和油漆）和制药（药膏）领域得到广泛应用。这些基质的主要成分之一是枞酸。本研究除了对松香中的枞酸进行定量分析外，还着重于对松香和松节油的特性及质量进行评估。通过蒸馏法分别从哥伦比亚考卡省种植的[具体树种1]和[具体树种2]树脂中获取了松香和松节油。采用传统方法（杯槽法）进行采脂。根据ASTM标准测定质量指标。通过紫外可见光谱（UV-Vis）、红外光谱（IR）和核磁共振（H-NMR）对所获得的松香进行了溶解度测试和官能团鉴定。采用高效液相色谱法（HPLC）测定了松香中存在的枞酸。根据其较高的酸值和较低的不皂化物百分比，所提取的松香被认为是中高质量的。通过HPLC对枞酸进行定量分析，结果表明[具体树种1]松香和[具体树种2]松香中枞酸的含量分别为14.85±0.24%和16.09±0.11%。
