Tongan "pineapple spike" longan is a famous fruit in Tongan District, Xiamen. It originated from Ma _ Nature Village, Xitang Village, Xinmin Town, Tongan District, Xiamen, and has been cultivated for more than 1 years. It was discovered by the Agricultural Technology Extension Center of Tongan District, Xiamen City in 198 in the general survey of longan variety resources in the whole region, and developed and expanded. [1]
Longan, commonly known as "Longan", is a rare specialty in the subtropical zone of southern China, which was called "Longan" in the south and "Ginseng" in the north in history. Longan fruit is rich in nutrition and has been loved by people since ancient times. It is regarded as a precious tonic, and its nourishing function is obvious.
characteristics "pineapple spike" longan has the excellent variety characteristics of "shoot-rush resistance", high and stable yield, excellent fruit quality and slow sugar withdrawal of mature fruits. Combined with the high grafting technique in Tong 'an District, "pineapple spike" longan has been widely planted, with an area of 36, mu in 212, and has become the main variety of longan in Tong 'an District. [1] The breeding and popularization of "Fenglisui" longan accelerated the improvement of longan varieties, improved the quality of longan products < P >, promoted the income of fruit farmers, and formed and promoted the characteristic industry of longan, which had remarkable economic and social benefits.
Li Shizhen once commented that "longan is the best resource". According to the analysis, the pulp contains 12.38 ~ 22.55% of total sugar, 3.85 ~ 1.16% of reducing sugar, .96 ~ .19% of total acid, C43.12～163.7 mg of vitamin C /1 g of pulp and VK196.5 mg of VK /1 g of pulp. In addition to fresh food, longan can also be processed, dried, canned and fried. Longan has many functions, such as strengthening yang and benefiting qi, nourishing heart and spleen, nourishing blood and calming nerves, moistening skin and beautifying face, etc. It can be used to treat anemia, palpitation, insomnia, amnesia, neurasthenia and physical weakness after illness and postpartum. Modern medical practice has proved that it also has the effects of beautifying and prolonging life. [2]
Longan is picky about the growing environment, and there are limited places to grow Longan in the world, so it is generally suitable in subtropical temperate climate without severe frost. Therefore, longan has always been called a good fruit in Lingnan, because it can be eaten fresh and used as medicine, and the demand in the market is in short supply.
Tongan's "pineapple spike" longan has the characteristics of thick and transparent meat, small soft core, red color and little sweet residue, which can be used as medicine and tea, and it is deeply loved by consumers. [3]
Efficacy and function
Longan has a remarkable effect in treating asthenia, insomnia, forgetfulness, fright, palpitation, guilty conscience and dizziness. In addition, longan also has the function of anti-aging, because it can inhibit the activity of an enzyme that makes people aging in the human body, and it is rich in protein vitamins and minerals. Long-term eating can "make people fit and not old"; Longan can also invigorate qi and nourish blood, and has a good effect on neurasthenia, upset sweating and mental retardation of menopausal women. It is a good product for strengthening the brain and improving intelligence. And postpartum women are weak, or malnutrition causes anemia, so eating longan is a good choice. [2]
Indications
Indications: It can be used to treat visceral pathogens, anorexia, anorexia, intestinal parasites and schistosomiasis. Long-term consumption can strengthen the body, prolong life, soothe the nerves, strengthen the brain and grow wisdom, stimulate appetite and strengthen the spleen, and make the complement deficient. Fresh longan is eaten with boiling soup, which does not hurt the spleen. Li Shizhen said: Litchi is the most expensive food, while longan is good for strengthening the body and strengthening the brain. Because litchi is hot and longan is flat. Can cure excessive thinking and injury to the heart and spleen. [4]
Quality identification (1) Longan is characterized by large particles, thick meat, round and symmetrical shape, generally about 3 cm in diameter, white and soft meat, transparent or translucent, and sweet taste.
The joy of pineapple harvest
(2) Pinch the fruit with three fingers. If the shell is hard, it indicates that the fruit is raw and immature; If you feel soft and elastic, it is a mature feature; If it is soft and inelastic, it is over-mature and will soon deteriorate. [5]
(3) When longan is peeled by hand, the meat core is easy to separate, and the meat quality is soft and not sticky. If the meat core is not easy to separate, the meat quality is dry and hard or the core is reddish, the quality is poor
(4) If there are white spots on the shell surface or pedicle end of longan, it means that the meat quality has begun to mold; A few white mold flowers appear on the shell, and the meat is slightly moldy; There are many white mold flowers, and the meat is heavy and not edible.
(5) pour longan on the table, so that the longan has high sugar content, and the shell, meat and core are connected, so it is not easy to roll on the plane; Poor quality is easy to roll. [5]
The reputation of Tongan pineapple ear longan [6] was discovered by the Agricultural Technology Extension Center of Tongan District, Xiamen in 198 in the general survey of longan variety resources in the whole region, and its origin was Ma _ natural village, Xitang Village, Xinmin Town, Tongan District, Xiamen. In 27, it passed the variety identification in Fujian Province, and in 21, it passed the scientific and technological achievements appraisal in Xiamen. In 211, the project won the second prize of Xiamen Science and Technology Progress Award.
Tongan pineapple spike
Xiamen Tongan District Rural Brokers Association
1852973
Gan Guiyuan.