Journal
FOOD RESEARCH INTERNATIONAL
Volume 44, Issue 7, Pages 1837-1842Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2010.10.019
Keywords
Longan; Dimocarpus longan Lour.; Fruit; Extraction; Bioactive compound; Pharmacological activities
Categories
Funding
- National Natural Science Foundation of China [30928017, U0631004, 31071638]
- CAS/SAFEA
- Natural Science Foundation of Guangdong Province [06200670]
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Mature longan (Dimocarpus longan Lour.) fruit has a succulent, edible and white aril, which has gained popularity as an exotic fruit in temperate regions. It is prized on the international market resulting in an increased production with significant contributions to local economic development. Longan fruit contains significant amounts of bioactive compounds such as corilagin, ellagic acid and its conjugates, 4-O-methylgallic acid, flavone glycosides, glycosides of quercetin and kaempferol, ethyl gallate 1-beta-O-galloyl-D-glucopyranose, grevifolin and 4-O-alpha-L-rhamnopyranosyl-ellagic acid. The fruit has been used in the traditional Chinese medicinal formulation, serving as an agent in relief of neural pain and swelling. The application of ultrasonic-assisted extraction or high pressure-assisted extraction greatly increases the yield from longan pericarp or seeds. In recent years, some pharmacological activities such as anti-tyrosinase, anti-glycated and anticancer activities, and memory-enhancing effects of longan aril, pericarp or seed extract have been found, implicating a significant contribution to human health. Regarding the increasing cultivation area and increasing quantity of longan fruit in the world, further utilization of this fruit is expected in an effort to use more efficiently the inherent bioactive compounds. The paper reviews the recent advances in the extraction and pharmacological activities of bioactive compounds from longan fruit. Some novel pharmacological potential of longan fruit is also discussed in this paper. (C) 2010 Elsevier Ltd. All rights reserved.
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