Hsu Fu-Lan, Chen Ying-Ju, Hsu Chun-Kai, Wang Liang-Jong
Forest Products Utilization Division, Taiwan Forestry Research Institute, Taipei 100051, Taiwan.
Lienhuachih Research Center, Taiwan Forestry Research Institute, Nantou 555002, Taiwan.
Foods. 2024 Aug 20;13(16):2610. doi: 10.3390/foods13162610.
In this study, we conducted tests on the seeds from four Taiwanese native species (, , , and ) and three commercialized species (, , and ) for comparison. We examined various aspects of these species, such as seed oil content, suitability for mechanical pressing, volatile components (edible flavor), and oil stability (suitability for cooking), to assess the feasibility of using these four native Taiwanese seeds as sources of edible oil. The results from solvent extraction tests and mechanical pressing experiments confirm that the seeds from , , and have high oil contents, and their oils are suitable for extraction via the popular mechanical pressing method, with oil yields comparable to or higher than those of the commercialized species. The volatile components of the oils were collected using MonoTrap adsorbents and analyzed with a thermal desorption system coupled with gas chromatography-mass spectrometry (ATD-GC/MS), primarily consisting of alcohols, ketones, and aldehydes. The results of oxidative stability tests reveal that the seed oils from , , and are higher than or equally stable to those from the commercialized species. After six months of storage, the stability of these three seed oils remained relatively high, demonstrating that the seed oils from , , and can withstand high temperatures and can be easily preserved for future applications.
在本研究中，我们对四种台湾本土物种（、、和）以及三种商业化物种（、、和）的种子进行了测试以作比较。我们考察了这些物种的各个方面，如种子含油量、机械压榨适用性、挥发性成分（食用风味）和油脂稳定性（烹饪适用性），以评估将这四种台湾本土种子用作食用油来源的可行性。溶剂萃取试验和机械压榨实验的结果证实，、和的种子含油量高，其油脂适合通过常用的机械压榨方法提取，出油率与商业化物种相当或更高。使用MonoTrap吸附剂收集油脂的挥发性成分，并通过与气相色谱 - 质谱联用的热脱附系统（ATD - GC/MS）进行分析，主要成分包括醇类、酮类和醛类。氧化稳定性测试结果表明，、和的种子油比商业化物种的种子油更稳定或稳定性相当。储存六个月后，这三种种子油的稳定性仍然相对较高，表明、和的种子油能够耐受高温，并且易于保存以备将来使用。
