一、国内外对柑桔废弃物的利用概况我国是世界柑桔主产国之一,近年来栽培面积和产量逐年上升。全国这么多的柑桔,其废弃物(即籽、络、渣、果皮等)的数量是相当可观的。仅以果皮为例,其重量约占全果总重的25%,按1982年的总产90万吨计算,就有果皮22.5万吨。这些果皮除极少数被收购作为中药外,绝大部分或被当作垃 I. Utilization of Citrus Wastes at Home and Abroad China is one of the major citrus countries in the world. In recent years, cultivation area and output have been increasing year by year. With so many citrus throughout the country, the amount of waste (ie seeds, corals, slag, peels, etc.) is considerable. Only peel, for example, weighs about 25% of the total weight of the whole fruit, according to the total output of 900,000 tons in 1982, there are 225,000 tons of peel. With the exception of a handful of these peelings being acquired as traditional Chinese medicine, the vast majority of these peels are either considered as rubbish