Isolation and structure elucidation of phenolic compounds from longan (Dimocarpus longan Lour.) seed by high-performance liquid chromatography–electrospray ionization mass spectrometry

Antioxidant activities of fractions from longan pericarps

“…In recent years, productions and consumption of longan in China have dramatically increased due to the development of planting technology and improvement of agricultural management. Longan pericarp, which account for approximately 20% by weight of the whole fresh fruit, has previously been shown to possess significant amount of phenolic compounds which are promising as functional food ingredients or natural preservatives (Prasad et al, 2010;Soong & Barlow, 2005). However, few comprehensive analysis of their antioxidant property has been conducted while longan pericarps were mainly discarded.…”

Potential roles of longan flower and seed extracts for anti-cancer

“…Non-steroidal antiinflammatory drugs have been documented in animal and human studies to reduce the risk of colorectal cancer and adenomatous polyps and have been implicated as a cancer prevention and treatment strategy [1,[17][18][19] . Longan flowers and seeds have been analyzed and were found to possess rich amounts of polyphenols, including proanthocyanidin A2, (-)-epicatechin, gallic acid and ellagic acid, and exhibit strong antioxidant and inflammatory activities [20][21][22][23][24] . Recently, several studies by our research group have further revealed that longan flower and seed extracts exhibit an anti-cancer activity towards colorectal, liver, lung, cervical and breast cancer.…”

Central Nervous System Depressant, Analgesic and Antidiarrheal Effects of the Seed Extracts of <i>Dimocarpus longan</i> Lour in Rats

“…4 The fruit has been used traditionally in Chinese medicinal formulations, serving as a agent for the relief of neural pain and swelling5. In recent years, the extracts from longan fruit including aril, pericarp and seed, have exhibited excellent antioxidant ability, anti-tyrosinase, anticancer, antifatigue and hypoglycemic activities [4][5][6][7][8][9][10][11][12][13][14].…”

“…The seeds act as antioxidant [], prevent human colorectal carcinoma cells [4], and they contain gallic acid, ellagic acid,and corilagin [9]. The current study was undertaken to investigate the analgesic, CNS depressant and anti-diarrheal effects of some solvent extracts of the seeds of D. longan.…”