种脱除人参茎叶提取物中残留农药的方法

• Format: Patent
• Language: Chinese
• Published: 05.01.2018
• Subjects: APPARATUS THEREFOR; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL METHODS OF ORGANIC CHEMISTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

种脱除人参茎叶提取物中残留农药的方法，步骤：称取人参茎叶提取物样品，加水在40～70℃温度下搅拌使其溶解，静置0.5～1小时冷却；将混合有机溶剂加入上述溶液中，摇匀萃取，共萃取3～5次，每次静置0.75～1.5h，有机层浓缩回收溶剂；将所得的水层按原料重量/稀释后的体积比1千克:6～12升的比例稀释，搅拌均匀，上树脂柱至树脂吸附饱和，上柱流速为1～2BV/h，用乙醇溶液洗脱，洗脱速度为1～2BV/h，收集定体积洗脱液，将洗脱液浓缩、真空干燥、粉碎、过筛、包装即得成品。本发明采用液液萃取和大孔树脂吸附纯化技术相结合脱除人参茎叶提取物中的农药残留，工艺简单易操作，生产成本低，脱除的残留农药种类多，可用于大规模生产，具有广阔的市场前景。 The invention discloses a method for removing pesticide residues in ginseng stem leaf extracts, which comprises the following steps: weighting a ginseng stem leaf extract sample, adding water, stirring at a temperature of 40-70 DEG C until the sample is dissolved, and standing for 0.5-1 hour for cooling; adding a mixed organic solvent into the solution, shaking well and extracting 3-5 times under the condition of standing for 0.75-1.5 hours per time, and concentrating an organic layer so as to recover the solvent; and diluting the obtained water layer in a ratio (the weight of raw materials: the volume of diluted raw materials) of 1 kg: 6-12 liters, uniformly stirring, feeding into a resin colum