• Journal of Applied Biological Chemistry
• /
• 제59권2호
• /
• pp.91-94
• /
• 2016

오디(Morus alba L.) 를 실온에서 80 % MeOH 수용액으로 추출하고 이 추출물을 EtOAc, n-butyl alcohol, 그리고 물 분획으로 나누었다. EtOAc 분획에 대하여 $SiO_2$ 및 ODS column chromatography를 반복 실시하여 2종의 Diels-Alder 부가화합물을 분리, 정제하였다. NMR, IR 및 ESI/MS data를 해석하여, 화합물 1과 2를 mulberrofuran E와 chalcomoracin 으로 각각 구조동정 하였다. 두 화합물 모두 오디로부터는 이번 실험에서 처음으로 분리되었다.

• Journal of Applied Biological Chemistry
• /
• 제60권2호
• /
• pp.109-111
• /
• 2017

The root bark of Morus alba L. were extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, n-BuOH, and $H_2O$ fractions. The repeated silica gel ($SiO_2$), octadecyl $SiO_2$ (ODS), and Sephadex LH-20 column chromatographies of the EtOAc fraction led to isolation of 12 phenolic compounds. The chemical structures of the compounds were determined as sanggenol Q (1), sanggenol A (2), sanggenol L (3), kuwanon T (4), cyclomorusin (5), sanggenon F (6), sanggenol O (7), sanggenon N (8), sanggenon G (9), mulberrofuran G (10), mulberrofuran C (11), and moracin E (12). All isolated compounds were evaluated for inhibit lipopolysaccharide-induced nitric oxide production in RAW 264.7 macrophages.

• Tuberculosis and Respiratory Diseases
• /
• 제77권2호
• /
• pp.65-72
• /
• 2014

Background: It is valuable to find the potential activity of regulating the excessive mucin secretion by the compounds derived from various medicinal plants. We investigated whether aqueous extract of the root bark of Morus alba L. (AMA), kuwanon E, kuwanon G, mulberrofuran G, and morusin significantly affect the secretion and production of airway mucin using in vivo and in vitro experimental models. Methods: Effect of AMA was examined on hypersecretion of airway mucin in sulfur dioxide-induced acute bronchitis in rats. Confluent NCI-H292 cells were pretreated with ethanolic extract, kuwanon E, kuwanon G, mulberrofuran G, or morusin for 30 minutes and then stimulated with phorbol 12-myristate 13-acetate (PMA) for 24 hours. The MUC5AC mucin secretion and production were measured by enzyme-linked immunosorbent assay. Results: AMA stimulated the secretion of airway mucin in sulfur dioxide-induced bronchitis rat model; aqueous extract, ethanolic extract, kuwanon E, kuwanon G, mulberrofuran G and morusin inhibited the production of MUC5AC mucin induced by PMA from NCI-H292 cells, respectively. Conclusion: These results suggest that extract of the root bark and the natural products derived from Morus alba L. can regulate the secretion and production of airway mucin and, at least in part, explains the folk use of extract of Morus alba L. as mucoregulators in diverse inflammatory pulmonary diseases.