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核桃又称胡桃。核果椭圆形或球形,外果皮肉质,内果皮硬,表面有皱折。于白露前后成熟时采收,将果实外皮沤烂,砸去核壳,拣清核隔,便成了核桃仁,核桃营养价值极高,含有多种维生素和无机盐类,尤其是蛋白质和脂肪的含量远比其他果品多, 是一种深受喜爱的滋补壮佳品,用核桃加工成的糖果糕点等食品具有特殊的风味。世界上出产核桃的国家很多。除我国外,还有美国、英国、法国、意大利、印度、土耳其等国。当今世界上核桃有五大类,而我国就有四类,据不完全统计,目前我国的核桃栽培品种多达250个,而且各地都有名品和佳果,北京的门头沟是我国核桃出口基地之一。其品种有光皮核桃;有核仁自然外露的露仁核桃;有皮薄如纸的纸皮核桃,有果实成串婉若葡萄的穗状核桃等名品,它们的仁肉乳白、丰满,品质优良。云南的漾濞核桃、串子核桃以及山西的临汾光皮棉、
Walnut, also known as walnut. Drupe oval or spherical, exocarp fleshy, endocarp hard, wrinkled surface. Harvest in the white before and after ripening, the fruit crust rotten, smashed to the nuclear shell, sorting clearance, it became a walnut, walnut nutritional value is extremely high, with a variety of vitamins and inorganic salts, especially protein and fat Is far more popular than other fruits and is a popular favorite nourishing and Zhuang Jiapin. Foods such as candy cakes processed with walnuts have a special flavor. There are many countries in the world producing walnuts. In addition to China, there are the United States, Britain, France, Italy, India, Turkey and other countries. There are five major types of walnuts in the world today, but there are four types in China. According to incomplete statistics, there are currently as many as 250 walnut cultivars in our country. There are famous and good fruits all over the country. Mentougou in Beijing is one of the export bases for walnuts in China. Its varieties are light-skinned walnuts; nucleolus natural exposed Luren walnut; a thin paper-like paper walnut, a string of fruits like a string of spikes Walnut and other famous products, their meat milky, plump, quality excellent. Yunnan Yangbi Walnut, Walnut Walnut and Shanxi Linfen Guangxian Mian,