我省龙眼采收集中于8月下旬到9月中旬,时间短、气温高,果实容易腐烂。为减少损失,果实除了鲜售外,大部分焙制成桂圆干、桂圆肉,还有一部分加工成糖水罐头、龙眼膏、龙眼酒等。桂圆干自古以来以珍贵滋补品而盛名,它具有补心益脾,养血安神之功效,可作为治疗病后虚弱、贫血痿黄、神经衰弱、产后血亏等症的佳品。早在李时珍的《本草纲 Longan harvest in our province concentrated in late August to mid-September, a short time, high temperatures, the fruit perishable. In order to reduce losses, most of the fruits, except fresh ones, are baked into dried longan and longan flesh and some are processed into canned syrup, longan cream and longan wine. It has the effect of nourishing the spleen and nourishing the spleen and nourishing the nerves. It can be used as an excellent product for the treatment of post-illness weakness, anemia and atrophy, neurasthenia, and postpartum blood loss embolism. As early as Lee’s "Compendium of Materia Medica