Li Linshuang, Chen Liuping, Pan Dongjin, Zhu Ying, Huang Rongshao, Chen Jing, Ye Chenying, Yao Shaochang
College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Guangxi Academy of Agricultural Sciences, Nanning, 530007, China.
Heliyon. 2024 Jul 14;10(14):e34608. doi: 10.1016/j.heliyon.2024.e34608. eCollection 2024 Jul 30.
Presl is a major food spice as well as traditional herbal medicine with anti-inflammatory, analgesic, and stomachic properties, which must be dried to preserve its quality, but mostly by using traditional, ineffective drying method. In order to find a scientific drying method by evaluating different drying methods that could influence the quality of , ten indices were employed to evaluate different drying methods in using the Analytic Hierarchy Process (AHP) method though calculating the total scores and ranking the priority. Four quality markers (Q-Markers) (coumarin, cinnamyl alcohol, cinnamaldehyde and -methoxycinnamaldehyde) were isolated from the samples and analyzed by high performance liquid chromatography (HPLC) method under different drying methods. The results showed that various drying methods had multiple effects on the physicochemical qualities, essential oil content, and Q-Marker contents. Compared with other drying methods, oven-drying of 45 °C (45OD) maintained optimal levels of color and aroma, it also significantly shortened the drying time by 225 h than traditionally shade-drying (SHD) method with the drying rate (48.35 %), and obtained the highest essential oil content (3.05 %) and Q-Marker contents (30.23 mg g). Furthermore, the ash content (4.22 %) were satisfied with the stipulation of Chinese pharmacopoeia in 45OD samples. Applying AHP allowed us to identify 45OD as the optimal drying method with the highest total score (9.00), followed by the traditional shade-drying (SHD) method (7.88). The present study is the first report to apply the AHP method for quality evaluation of drying processing in . It can provide the theoretical basis for evaluating an excellent method for drying processing, as well as the rational use of different drying methods to furtherly develop the high quality industry.
Presl是一种主要的食用香料以及具有抗炎、止痛和健胃特性的传统草药，必须进行干燥以保持其品质，但大多采用传统的、低效的干燥方法。为了通过评估不同干燥方法对其品质的影响来找到一种科学的干燥方法，采用层次分析法（AHP），通过计算总分和确定优先级，运用十个指标来评估Presl的不同干燥方法。从样品中分离出四种质量标志物（Q-标志物）（香豆素、肉桂醇、肉桂醛和对甲氧基肉桂醛），并在不同干燥方法下通过高效液相色谱（HPLC）法进行分析。结果表明，各种干燥方法对其理化性质、精油含量和Q-标志物含量有多种影响。与其他干燥方法相比，45℃烘箱干燥（45OD）能保持最佳的色泽和香气水平，干燥时间也比传统的阴干（SHD）方法显著缩短225小时，干燥速率为48.35%，且获得了最高的精油含量（3.05%）和Q-标志物含量（30.23mg/g）。此外，45OD样品的灰分含量（4.22%）符合中国药典的规定。运用层次分析法使我们确定45OD为总分最高（9.00）的最佳干燥方法，其次是传统的阴干（SHD）方法（7.88）。本研究是首次报道将层次分析法应用于Presl干燥加工的质量评价。它可为评估Presl干燥加工的优良方法提供理论依据，以及合理使用不同干燥方法以进一步发展高品质的Presl产业。
