Preparation method of zero-THC industrial cannabinoid oil

The invention relates to a preparation method of industrial hemp oil, which comprises the following steps: drying industrial hemp at high temperature, extracting with supercritical carbon dioxide to obtain an extract, winterizing the extract for dewaxing, carrying out molecular distillation to remove impurities, and finally obtaining a zero-THC industrial hemp extract through preparative chromatography. According to the method for preparing the industrial hemp extract, chlorophyll does not need to be removed through a color removal step, the industrial hemp extract containing no drug active ingredient THC is obtained, and industrial hemp oil rich in CBDV and industrial hemp oil rich in CBD can be obtained through secondary preparation of the zero-THC industrial cannabinoid oil. 本发明涉及一种工业大麻油的制备方法，所述方法，步骤如下：将工业大麻在高温下干燥，再用超临界二氧化碳萃取得到浸膏，再将浸膏进行冬化脱蜡和分子蒸馏去除杂质，最后通过制备色谱得到零THC工业大麻提取物，按照本发明公开的方法制备工业大麻提取物，无需通过除色步骤去除叶绿素，得到不含毒品活性成份THC的工业大麻提取物，将零THC工业大麻素油进一步进行二次制备还可以分别得到富含CBDV的工业大麻油和富含CBD的工业大麻油。