Harvested longan (Dimocarpus longan Lour.) fruit are susceptible to decay caused by both bacterial and fungal infections. Ochratoxin A (OTA) is a kind of mycotoxin produced by a number of fungi. In this study, OTA was extracted from longan fruit pulp by 80% methanol and then loaded on C-18 solid-phase extraction columns. The extract solution was then analyzed by high-performance liquid chromato...

The present study is carried out for the evaluation of anti-HIV-1 effect of Dimocarpus longan extracts and also the investigation of the phytoconstituents from the extracts. Chloroform, ethyl acetate and methanol 80% extracts of Dimocarpus longan aerial parts were tested for their antiHIV-1 activity using the syncytia formation assay. Ethyl acetate from Dimocarpus longan aerial parts extract ha...

Longan (Dimocarpus longan Lour.) has been used as a traditional oriental medicine and possesses a number of physiological activities. In this study, we used cell-based herbal extract screening to identify longan fruit extract (LFE) as an activator of osteoblast differentiation. LFE up-regulated alkaline phosphatase (ALP) activity, induced mineralization, and activated Runx2 gene expression in M...

Seeds of the recalcitrant species lychee (Litchi chinénsis Sonn.) and longan (Dimocarpus longan Lour.) were stored near 100% relative humidity at 8 to 10C in air, 80% nitrous oxide (N2O) plus 20% oxygen, or 100% nitrous oxide. The combination of anesthetic and oxygen extended storage longevity of both species. Seeds stored in 100% N2O lost terminability at the same rate as those stored in air. ...

OBJECTIVES Longan seeds have been used as a folk medicine in China. Longan seed extract (LSE) is known for antioxidative, antiproliferative, hypoglycemic, and hypouremic effects. However, its anti-inflammatory effect has not been shown. MATERIALS AND METHODS In this study, Sprague-Dawley (SD) rats were given LSE orally (vehicle, 10, and 30 mg/kg) for 3 days to its test anti-inflammatory effec...

Immersion of litchi fruit in 49 Cwater for 20 min followed by hydrocooling in ambient (24 4 C) temperature water for 20 min was tested as a quarantine treatment against potential infestations of Mediterranean fruit ßy, Ceratitis capitata (Wiedemann); and oriental fruit ßy, Bactrocera dorsalisHendel, eggs or larvae inHawaiian litchi,Litchi chinensis Sonnerat. The 49 Chot-water immersion of litch...

Objective(s): Longan seeds have been used as a folk medicine in China. Longan seed extract (LSE) is known for antioxidative, antiproliferative, hypoglycemic, and hypouremic effects. However, its anti-inflammatory effect has not been shown. Materials and Methods: In this study, Sprague-Dawley (SD) rats were given LSE orally (vehicle, 10, and 30 mg/kg) for 3 days to its test anti-inflammatory eff...

Ubiquitin-conjugating enzymes (E2s or UBC enzymes) play vital roles in plant development and combat various biotic and abiotic stresses. Longan (Dimocarpus longan Lour.) is an important fruit tree in the subtropical region of Southeast Asia and Australia; however the characteristics of the UBC gene family in longan remain unknown. In this study, 40 D. longan UBC genes (DlUBCs), which were class...