The nutritional value of hazelnut is very high, and its components are mainly concentrated in hazelnut shell and hazelnut kernel. Hazelnut shell contains a lot of brown pigment, which is an excellent natural pigment and meets the requirements of green food. At the same time, it is also a kind of biomass raw material, which has certain research value in the fields of energy and environmental protection. In addition, the pulverized hazelnut shell is a good raw material for organic fertilizer.
Extended data:
Hazelnut is a kind of woody grain and woody oil tree with high comprehensive utilization value and wide use. The utilization of hazelnuts in China has a long history, which can be traced back to the Stone Age 6000 years ago. A large number of hazelnut shells were unearthed at the banpo village site in Xi 'an. Relevant written records appeared in the Book of Songs in the 10 century BC.
Hazelnut contains 50.6% ~ 63.8% fat, protein 16.2% ~ 18.0%, carbohydrate 16.5% and dietary fiber 8.2% ~ 9.6%. Although hazelnut is rich in oil, it can lower blood pressure, reduce blood fat, protect eyesight and delay aging. Its rich oil is also suitable for fat-soluble vitamins to be absorbed by human body, which is a good choice for people who are weak, hungry and weak after illness.
References:
Hazel-Baidu Encyclopedia