Investigation on the Pesticide Residue Contents of Green Herbs in Taiwan

• Main Authors: Li-Hao Lai, 賴力豪
• Other Authors: 張永勳
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/27627953023250037734

碩士 === 中國醫藥大學 === 中國藥學研究所 === 96 === Taiwanese have used green herbs for a long time. However, the usage of green herbs is limited in some regions without national comprehensive identification. Moreover, it lacks of clinical, toxic, pharmaceutical and animal experiment supports. The usage of green herbs is usually recorded in non-official documents. According to the present laws, green herbs stores are not regulated by the sanitary authority in Taiwan. To open green herb stores, the owners only need to apply the Certificate of the Company Registration from local construction bureaus. Therefore, people who are engaged in green herbs business have become the potential problems of medical and pharmaceutical management. Therefore, the health authority is unable to hold the concrete information of these green herbs stores. The control of green herb stores and the green herbs which sold by these stores are currently limited in the management of labeling, promotion, and advertisement campaign. Instead of the pharmaceutical laws, the green herbs relative managements are regulated by relevant food laws in principle (Act Governing Food Sanitation and Health Food Control Act). The misuse of green herbs happens quite often among civilians. However, these cases are generally not recorded; moreover, green herbs stores are not properly regulated. In this case, green herbs traders have become a great potential risk of medical and pharmaceutical management. To use green herbs to cure illness among general public has been an existing fact for a long time. Domestically, the usage of green herbs is controlled by relevant food laws. Nevertheless, the possible pesticide residue contents in green herbs are worth to be emphasized. There have been reports about the pesticide residue contents in partial Chinese herbs medicine. Therefore, further management and examinations should be taken in order to assure the safety while using green herbs to cure diseases. The experiment focused on the detection of organochlorine pesticides in green herbs. Becuase most of the organochlorine pesticides takes much time to decompose and are fat-soluble, therefore, they can be stored in fat tissues for a long time and cause bioaccumulation and condensation. According to literature reviews, organochlorine pesticides may generate strong posin, result in cancer and further to endanger human bodies. This experiment focus on the forbidden organic chlorine pesticide which practiced on the vegetables and fruit, including Aldrin, α-BHC, β-BHC, γ-BHC, δ-BHC, 4,4''-DDD, 4,4''-DDE, 4,4''-DDT, Dieldrin, Endosulfan I, Endosulfan II, Endosulfan sulfate, Endrin, Endrin aldehyde, Endrin ketone, Heptachlor, Heptachlor epoxide, Methoxychlor and PCNB. This experiment collected 20 kinds of green herbs from 10 green herbs stores in Taiwan, including. Plantago asiartica L., Pteris multifida Poiret, Prunella vulgaris Linn. var. asiatica (Nakai) Hara, Rhinacanthus nasutus (L.) Kurz、Canna faccida Salisb, Morus alba L., Centella asiatica (Linn.) Urban, Oxalis corniculata L., Xanthium strumarium Linn., Anoectochilus formosanus Hayata, Artemisia princes Pamp. var. orientalis (Pamp.) Hara, Tithonia diversifolia (Hemsl.) A. Gray, Pogonatherum crinitum (Thunb.) Kunth, Ampelopsis brevipedunculata var. hancei (Planch.) Li, Portulaca oleracea Linn, Alternanthera sessili (L.) R. Brown, Polygonum cuspidatum Sieb. et Zucc, Gynostemma pentapphllum (Thunb.) Makino, Hibiscus sabdariffa L., and Mirabilis jalapa Linn. The experiment was conducted according to the official standard methods. Based on the food standard of EU and the European Pharmaceutical Dictionary 5.0, the result indicates that the overall Aldrin+Dieldrin in dried Centella asiatica (Linn.) Urban exceeded the standard in 2 out of 20 (the qualitative and quantifiable value was 0.074 and 0.094 ppm respectively). The overall Aldrin+Dieldrin value in fresh Centella asiatica (Linn.) Urban exceeded the standard in 1 out of 6. (the qualitative and quantifiable value was 0.086 ppm) while the tested Endrin was exceeded in 1 out of 6 (the qualitative and quantifiable value was 0.086 ppm ), and tested Heptachor excedded in 2 out of 6 (the qualitative and quantifiable value was 0.064 ppm and 0.0152 ppm respectively.) Among the 10 tested Artemisia princes Pamp. var. orientalis (Pamp) Hara samples, the PCNB value of 3 exceeded the standard (the qualitative and quantifiable values were 5.522 ppm, 7.526 ppm and 2.289 ppm respectively.), the BHC value of 1 exceeded the standard (the qualitative and quantifiable values was 1.141 ppm), and the DDT value of 3 excedded the standard (the qualitative and quantifiable values were 4.715 ppm, 4.471 ppm and 5.114 ppm respectively), the overall Aldrin+Dieldrin value of 4 exceeded the standard (the qualitative and quantifiable values were 0.087 ppm, 2.421 ppm, 0.243 ppm and 1.852 ppm respectively.), the Endrin value of 3 exceeded the standard (the qualitative and quantifiable values were 2.377 ppm, 0.131 ppm and 0.375 ppm respectively.), and Heptachor value of 3 exceeded the standard. (the qualitative and quantifiable values were 2.377 ppm, 0.131 ppm, and 0.375 ppm respectively.) In the 10 tested Pogonatherum crinitum (Thunb.) Kunth, the overall Aldrin+Dieldrin value of 5 were above the standard (the qualitative and quantifiable values were 0.078 ppm, 1.195 ppm, 0.078 ppm and 0.171 ppm respectively.) In the 10 tested Portulaca oleracea Linn, the overall Aldrin+Dieldrin value of 1 was above the standard (the qualitative and quantifiable values was 1.489 ppm.) In the 10 tested Gynostemma pentapphllum (Thunb.) Makino, the Endrin values of 2 exceeded the standard (the qualitative and quantifiable values were 0.052 ppm and 0.051 ppm respectively.) Examinations on other herbs showed slight content of Supelco TCL 18 Pesticide Mix, however, the volume are all less than 0.0625ppm.