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在科学发展的今天,人们对树叶发生了浓厚的兴趣。通过科学分析测试各种树叶的成分之后,发现树叶还是取之不尽的资源宝库呢。 在国外,有人用树叶提供的木质素与苯酚、硫酸、石灰等化合后制成塑料建筑材料,并且用这种材料盖起了一栋五层楼房。这栋楼没用钢筋、水泥和木料,不仅重量轻、隔音好,而且美观舒适。还有一个工厂,专用树叶做原料,从松树叶里提取酒精、松香油、拷胶,并用其制造纸张、人造纤维及隔热、隔音板;从樟树叶里提取樟脑油、樟脑精;从杜仲叶里提取树胶;从核桃树叶里提取漆;用白扬树叶酿白酒……产品五花八门,企业规模发展的很大。有人以此预言:未来人类食物制品的原料,除粮食外,树叶将占据重要地位。
In the scientific development of today, people have a strong interest in leaves. After scientifically analyzing the composition of various leaves, the discovery of leaves is still an inexhaustible resource treasure. In foreign countries, the lignin provided by leaves is combined with phenol, sulfuric acid, lime, etc. to form a plastic building material, and a five-storey building is built with this material. This building does not use steel, cement and wood, not only light weight, good sound insulation, but also beautiful and comfortable. There is also a factory where special leaves are used as raw materials to extract alcohol, rosin oil and gum from pine leaves, and use it to make paper, man-made fibers and heat insulation and sound-insulating boards; to extract camphor oil and camphor extract from eucalyptus leaves; from Eucommia ulmoides The gum is extracted from the leaves; the paint is extracted from the leaves of the walnuts; the white wine is fermented from the white poplar leaves... The products are varied, and the scale of the company is greatly developed. Some people predict that the future of human food products, in addition to food, the leaves will occupy an important position.