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我省是桦树资源较丰富的省区之一。桦树木质好,有多种用途,这已早为人知。对于桦树的汁液所具有的丰富的营养成分,知道的人却为数不多。 桦树液有哪些营养成分呢?据国外有关部门测定,新鲜桦汁含还原糖0.79——0.86%,其中葡萄糖0.47——0.50%,果糖0.32——0.36%,每公斤桦汁中含铁1.7毫克,磷0.25毫克,铜5.7——6.36毫克。每
Our province is one of the provinces rich in birch resources. Birch wood is good, there are many uses, it has long been known. There are only a few people who know about the rich nutrients that birch juice has. According to the determination of foreign departments, the fresh birch juice contains reducing sugar 0.79--0.86%, of which 0.47--0.50% glucose, 0.32--0.36% fructose, iron content per kilogram of birch juice 1.7 Mg, phosphorus 0.25 mg, copper 5.7 - 6.36 mg. each