Botanical Information Plantago asiatica L. (procuring samples)
| Synonyms | Plantago alata Nakai Saishu-to Kuan-to Shokubutsu Hokoku-sho |
| Plantago asiatica f. folioscopa (T.Itô) Honda | |
| Plantago asiatica f. paniculata Hara | |
| Plantago asiatica f. polystachya Nakai | |
| Plantago asiatica f. rosea Makino ex Nakai | |
| Plantago asiatica f. yakusimensis (Masam.) | |
| Plantago asiatica var. brevior Pilg. Notizbl. | |
| Plantago asiatica var. coreana (H.Lév.) | |
| Plantago asiatica var. densiuscula Pilg. | |
| Plantago asiatica var. laxa Pilg. | |
| Plantago asiatica var. lobulata Pilg. | |
| Plantago asiatica var. yezoensis (Pilg.) H.Hara | |
| Plantago coreana H.Lév. Repert. | |
| Plantago formosana Tateishi & Masam. | |
| Plantago hostifolia Nakai & Kitag. | |
| Plantago major f. asiatica (L.) Regel | |
| Plantago major var. asiatica (L.) Decne. | |
| Plantago major var. folioscopa T.Itô | |
| Plantago taquetii H.Lév. Repert. | |
| Plantago yakusimensis Masam. | |
| Plantago yezoensis Pilg. | |
| Common name (ja) | オオバコ |
| Common name (ko) | 질경이 |
| Common name (vi) | Xa tiền |
| Common name (zh) | 车前 |
| Sample preparation | Weigh 2.5 g of the powdered sample and place it in a 50-mL centrifuge tube, then add 10 mL of methanol (60%). Sonicate (350 W) the mixture for 15 min. Centrifuge at about 4000 × g for 5 min. Filter through a 0.45-µm nylon filter |
| Mobile phase | Ethyl acetate, ethanol, formic acid, water 18:3:1.5:1 (v/v/v/v) |
| Derivatization | No derivatization |
| Sample preparation | Add 1.0 g of powdered sample to 10 mL of methanol, ultrasonicate for 30 min, filter and use the filtrate |
| Mobile phase | Ethyl acetate, methanol, formic acid, water 18:3:1.5:1 (v/v/v/v) |
| Derivatization | No derivatization |
| Sample preparation | Weigh 1.0 g of the powdered sample and place it in a 50-mL conical flask, then add 10 mL of methanol. Sonicate (200 W) the mixture for 15 min. Filter the mixture |
| Mobile phase | Ethyl acetate, water, formic acid, glacial acetic acid 8:2:1:1 (v/v/v/v) |
| Derivatization | Spray with 1% vanillin sulfuric acid reagent in ethanol, and heat at 105°C until the sppots appear |
| Sample preparation | Add 2.0 g of powdered sample to 10 mL of ethanol, heat under reflux for 30 min, cool, filter and make up the filtrate to 10 mL |
| Mobile phase | n-butanol, acetic acid, water 7:1:2 (v/v/v) |
| Derivatization | Spray with 2,4-dinitrophenylhydrazine and heat at 105°C for 2 min |