Walnut with shell is a symbol of happiness and wisdom of every home
Older people say that in every home there should be a bowl with walnuts in shell because it is a symbol of happiness and wisdom of all household members. The hard wood shell of the walnut hides a soft, tasty and nutritious core. The core is high in calories but preserves the elasticity of the arteries and prevents cardiovascular disease.
Spanish researchers and doctors at a hospital in Barcelona conducted a study with nuts in 2007. Thus, they proved that the walnut kernel is high in calories, but it preserves the elasticity of the arteries and prevents cardiovascular diseases and even heart attacks. The secret is in larginine (an amino acid that preserves the elasticity of blood vessel walls). Therefore, 2 to 3 walnut kernels are recommended in the daily diet. Walnut (Latin Juglans) originates in Asia from which it spread to the rest of the world. The core is hidden in the shell, so for many peoples the nut symbolizes wisdom and is a symbol of fertility and happiness. That is why the ancient Greeks and Romans showered the newlyweds with walnuts. Today, this deciduous tree of feathery leaves is widespread throughout the world. It is appreciated for its fruits and quality timber. One walnut tree can yield 40 to 80 kilograms of this stone fruit. The fruits are harvested from mid-September to late October. There are walnuts all year round, although they are best enjoyed in winter. The core of the fruit is very caloric (100 grams contains about 660 calories) and nutritious. It is rich in vitamin E, B vitamins and minerals (zinc, iron, calcium, potassium, copper, magnesium). It has a significant amount of protein and plant fiber. In folk medicine, fruits, leaves and green fruits rich in iodine and vitamin C are used.
Tips for buying and storing walnuts
When buying walnuts, take light fruits with pierced and too light shell or shell with stains. Walnuts in shell can be stored for up to a year in a dry and dark place. The cleaned core should be placed in a jar with an airtight seal. Keep in a cool place (preferably in the refrigerator).
The use of walnuts in cooking
Walnut kernels are used in cooking mainly for making sweets. Delicious sauces for dough or meat are made from the core. The core has applications in cosmetology and pharmacy. There are over 20 types of walnuts. The most famous are walnuts and pecans. Pecan grows in North America. Pecan walnut tree can grow up to 50 meters in height. The fruit has a smooth pink shell. The core is elongated and compact. The taste of pecans is between hazelnuts and common walnuts. Brazil nut is the fruit of a rough and hard shell that hides a core whose taste is rich in selenium and a mixture of walnuts and coconut.