RESUMO
Djulis (Chenopodium formosanum Koidz), is rich in nutrients and contains various bioactive components such as polyphenols and alkaloids. The new compound has a broad application prospect, including food additives, health products, drugs, etc. The purpose of this study was to find out new compounds from Djulis. It was found that 24 compounds including 7 phenols, 11 flavonoids, 4 plant alkaloids, 2 sterols. Among those, TCI-CF-22-S (Methyl 3,6-dihydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-23-S (Methyl 6-hydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-24-S (Kaempferol-3-O-b-D-apifuranosyl-(1â2)-a-L-arabinopyranoside) were isolated from djulis sources for the first time, and the structures of compounds were assigned by 1D, 2D NMR spectroscopy. TCI-CF-01(Caffeic acid), TCI-CF-02 (20-Hydroxyecdysone), TCI-CF-03 (Japonicone), TCI-CF-04 (3,4-Dihydroxyphenylacetiate), TCI-CF-05 (Quercetin-3-O-rutinoside-7-O-rhamnopyranoside), TCI-CF-06 (Guanosine), TCI-CF-07(Adenine), TCI-CF-08 (Coumaric acid) increased collagen production, and TCI-CF-03 (Japonicone), TCI-CF-04 (3,4-Dihydroxyphenylacetiate), TCI-CF-06 (Guanosine), TCI-CF-17 (Rutin), TCI-CF-20 (Protocatechuic acid) decreased advanced glycation end products (AGEs). In addition, TCI-CF-22-S (Methyl 6-hydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-23-S (Methyl 3,6-dihydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate) inhibited the formation of fatty oil droplets. Djulis has 24 compounds that may have various applications, including increasing collagen production and reducing advanced glycation end products and fatty oil droplets.