Anhydrosafflor yellow B (AHSYB) is a major active water-soluble pigment in Safflower, but it has not received enough attention yet. In this study, high-speed counter-current chromatography (HSCCC) was used to prepare AHSYB from safflower. The parameters of the separation process were optimized by response surface methodology for the first time. The entropy weight method (EWM) was applied to calculate the information entropy and the weight of five indexes, and then figure out a comprehensive index of the HSCCC separation effect. Under the optimized separation conditions, a HSCCC apparatus speed of 850 rpm, a flow rate of 2 mL min⁻¹ for the mobile phase and a separation temperature of 40 °C for AHSYB were achieved with a purity of 98%. Furthermore, AHSYB was found to have cardio-protective effects by inhibiting apoptosis via the mitochondrial-mediated pathway in oxygen-glucose deprivation/reoxygenation-induced H9c2 cells. This research provides good method guides for the rapid and efficient separation of active compounds from food-grade Chinese herb medicines.

In this research, eight natural deep eutectic solvents (NaDESs) consisting of food-grade ingredients were screened for the extraction of four bioactive compounds (acteoside, cinnamic acid, angoroside C and harpagoside) from radix scrophulariae (RS). Among these NaDESs, Proline-Glycerol NaDES with higher comprehensive score was selected. The Criteria Importance Through Intercriteria Correlation (CRITIC) was applied to calculate the information entropy and the weight of indexes, and figured out a comprehensive score. The weights of acteoside, cinnamic acid, angoroside C and harpagoside were 0.369, 0.172, 0.241 and 0.218, respectively. Response surface methodology (RSM) mathematical model was used to optimize the extraction parameters. The optimal extraction parameters were as follows: extraction time with 42.21 min, NaDES concentration with 52.89%, solid-to-liquid ratio with 1 : 37.05 g/mL and the predicted value of comprehensive score was 0.885. Under the optimal condition, the comprehensive score was 0.903 ± 0.005. Finally, the antioxidant activity experiment revealed that the 1,1-Diphenyl-2-picrylhydrazyl · radical scavenging activity and hydroxyl radical scavenging activity of the extract at 2.0 mg/mL and 1.5 mg/mL were approximately equal to those of ascorbic acid, respectively. The results showed that the extraction condition optimized by RSM combined with CRITIC was reasonable and dependable, and the extract of radix scrophulariae exhibited good antioxidant activity.

A green smashing tissue and ultrasonic (STU) extraction method, which combines smashing tissue and ultrasonic-assisted extraction, was developed for the first time. The extraction of tanshinones from Salvia miltiorrhiza Bunge (SM) was taken as an example to discuss the practicability of this method. Taking the total yield of eight tanshinones as an evaluation index, response surface methodology (RSM) and artificial neural network (ANN) models were used to optimize the extraction parameters, and these two models were also compared by investigating the extract yield of tanshinones and the antioxidant activity of the obtained SM extract. The optimal STU conditions by ANN were as follows: an ethanol concentration of 73%, a liquid/solid ratio of 30 mL g⁻¹, a smashing tissue time of 97 s and an ultrasonic time of 40 min. Under these optimal conditions, the yield of the eight components was 0.30% ± 0.12, which was greater than 0.28% ± 0.03 optimized by RSM. The IC₅₀ values of 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) of the obtained extract were 55.25 ± 3.72 μg mL⁻¹ and 67.33 ± 2.62 μg mL⁻¹, respectively, which were better than those of 75.49 ± 4.33 μg mL⁻¹ and 112.10 ± 5.98 μg mL⁻¹, respectively, optimized by RSM. Furthermore, the SM extract was found to exert neuroprotective effects by inhibiting parthanatos in middle cerebral artery occlusion/reperfusion (MCAO/R)-induced rats. The results supported the use of the SM extract, which was obtained by STU, as a potential product in the cosmetics, medicine, and food industries.

The genus Vitex L. (Verbenaceae) comprises ~250 species globally, with long-standing ethnopharmacological value. Notably, only Traditional Chinese Medicine (TCM) explicitly applies Vitex negundo for ischemic stroke (documented in classic Materia medica), distinguishing it from other regional uses (eg, menstrual disorders, malaria) and providing a unique basis for anti-stroke research. Through systematic searches of English and Chinese databases such as Web of Science, Pubmed, CNKI, and Wanfang Data. This review systematically summarizes the natural constituents of Vitex L. their anti-ischemic stroke efficacy, and underlying mechanisms, emphasizing the uniqueness of Vitex-specific components and guiding preclinical optimization and clinical translation. Over 200 constituents were identified, with flavonoids (vitexin, isovitexin, casticin), terpenoids (vitexilactone, rotundifuran), and phenols as core active components. High-evidence compounds (validated by both in vitro and in vivo experiments) such as vitexin (10–50 mg/kg) reduced rat MCAO infarct volume by 30–40% via blocking NMDA receptor-mediated Ca²⁺ overload. Mechanistically, components target neurons, glia, and vascular endothelial cells, regulating both classic pathways (Nrf2, NF-κB, PI3K/Akt) and frontier mechanisms (ferroptosis, pyroptosis, epigenetic regulation). Synergistic effects of multi-component mixtures and optimized extraction/synthesis address low-content challenges. Vitex L. exhibits significant anti-ischemic stroke potential, with unique components and multi-pathway regulation as core advantages. Future research should focus on multi-center validation, synergistic mechanism exploration, and clinical trials of high-evidence components to advance translation.

Natural deep eutectic solvents (NaDESs) was efficient and green for componential extraction of traditional Chinese medicine compared to conventional organic solvents. In this study, a total of nine NaDESs were synthesized and screened, and Proline-Urea (Pro-Ur) was screened as extract solvent for experiments. Five bioactive components (neochlorogenic acid, chlorogenic acid, rutin, isoquercitrin and kaempferol-3-O-rutinoside) were selected as target components. The optimal process was as follows: NaDES content of 60%, solid to liquid ratio of 80 mg/mL, extract temperature of 70°C and extract time of 40 min. The predicted comprehensive value of extraction yield was 0.4364. The IC50 of Betaine-Urea on PC12 cells was ~0.3% (v/v).