Acorns can be eaten, cooked and eaten.
Shell bucket family oak plant seeds called berry oak fruit, commonly known as acorns, the English name Acor n. Acorns are rich in starch, its content is second only to the five grains and much higher than beans, generally more than 50%, up to 87%. Fat, protein, VB are higher than grains.
Nutritional properties
Acorn kernel containing starch 50.6% to 58.7%, protein 11.7% to 15.8%, fat 2.1% to 2.6%, ash 1.3% to 2.2%, tannin 10.2% to 14.1%, acorn shells contain a large number of pigments and tannins and other components.
According to He Ruiguo et al. (2000) research results show that the available nutritive value of the acorn kernel is close to or slightly lower than corn, but slightly better than rice, is a good use of wild economic plant resources. The lowest content of amino acids in acorns is cystine, followed by tryptophan and methionine, but the relative content of arginine and lysine, the limiting amino acids of cereals, is 52% and 68% higher than that of corn.
The zinc and iron content of acorns is slightly lower than that of corn and sorghum, but the content of potassium, sodium, calcium, magnesium, cobalt and manganese are higher than that of corn and sorghum. Ottgen et al. (1998) showed that: Mongolia oak acorns per 100 g containing VB10.0725 mg, VB20.0950 mg, VC1 4.15 mg, VA1.039 mg; fatty acids are mainly linoleic acid (50.98%), oleic acid (29.41%) is the main, acorns (fresh) VB1 content of the acorns of the green oaks 2.5 times, significantly lower than maize, is 1 / maize, the acorns (fresh) VB1 content of the acorns of the green oaks of the green oaks, is 1 / maize, is 1 / maize, is 1 / maize, is 1 / maize, is 1 / maize, is 1 / maize, is 1 / maize, is 1 / maize.
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Health care function properties
Sun Simiao said: "acorns are neither fruit nor cereal, but the most beneficial, all the people who can not break the grain, eat this best. No gas is given to the gas, no flavor is given to the flavor, eliminating food and stopping dysentery, make people healthy and unparalleled." According to the "Compendium of Materia Medica" records, acorns are rich in trace elements on the human body has astringent and regulating the spleen and stomach, detoxification, weight loss and other health effects, has a high medicinal value.
According to CCTV 2004.11.05 report, acorns contain 18 kinds of amino acids, of which the human body can not synthesize phenylalanine, isoleucine content is particularly rich, this amino acid in the body can promote cell metabolism, stimulate the pituitary hormone and epithelial hormone secretion, promote microcirculation, and improve the vitality of the body; acorns contain other organisms contain very little vanadium, vanadium can control plasma and tissue in the body, the vanadium can be used in the human body. In vivo control of plasma and tissue brain acid concentration, control of phospholipid oxidation and COA-deacetylase activity, long-term consumption of obese people, can achieve weight loss, lipid, skin detoxification effect, thereby controlling and slowing down the aging of the human body.
Ren Ying et al. (1996) showed that acorns have a tendency to antagonize the toxicity of heavy metal lead and protect trace elements (such as copper) from being lost. Acorns are rich in tannins, tannins in medicine can stop bleeding and healing, antibacterial and antiallergic, especially with antioxidant, anticancer, to prevent cardiovascular and cerebral vascular diseases, has become a hot spot of research on phenolic substances in recent years. Thus, acorns in Korea, Japan has become a household name in food.
Safety features
Acorn contains a relatively high level of anti-nutrients tannin (4.55%) and toxic hydrocyanic acid (0.98%). Tannin taste astringent, poor palatability, tannin in the digestive tract can be combined with protein in the ration, thus reducing its utilization, tannin and gastrointestinal mucosal protein combined to generate ellagic acid protein precipitation, so that the gastrointestinal tract movement function is weakened and gastrointestinal flaccidity occurs, causing constipation in animals, a large number of tannins can cause animal hemorrhagic or ulcerative gastroenteritis, abdominal pain and diarrhea.
Acorn kernel contains cyanogenic glucoside, cyanogenic glucoside itself does not show toxicity, but by the animal feeding, chewing, in the water and the appropriate temperature, after the glucoside **** survival of the enzyme, hydrolysis produces hydrocyanic acid, and cause animal poisoning, or even death. But the boiling point of hydrocyanic acid is low, easy to heat and volatile. Therefore, it can be volatilized naturally in the process of tanning and processing of acorns.
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