Novel molluscicide against Pomacea canaliculata based on quinoa (Chenopodium quinoa) saponins

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dc.contributor.authorMartin, Ricardo San
dc.contributor.authorNdjoko, Karine
dc.contributor.authorHostettmann, Kurt
dc.date.accessioned2024-01-10T13:15:38Z
dc.date.available2024-01-10T13:15:38Z
dc.date.issued2008
dc.description.abstractA novel molluscicide against Pomacea canaliculata snails (Golden apple snail, GAS) based on quinoa saponins (Chenopodium quinoa) is presented. Quinoa is a pseudocereal extensively cultivated and consumed in Bolivia and Peru. The external husk of the grains is removed prior to human consumption due to the bitter taste imparted by their high saponin content (predominantly bidesmosidic, saponins), and constitutes a by-product with no commercial value. When tested against GAS, quinoa husks showed no activity up to 121 ppm product (approximately 35 ppm saponins). To increase their molluscicidal properties, the husks were treated with alkali to convert bidesmosidic saponins to more active monodesmosides. This product killed 100% GAS under laboratory conditions at 24h at approximately 33 ppm product. Surprisingly no toxicity to fish, such as goldfish or tilapia, was observed up to the highest concentration tested (e.g., 54ppm product). This is a main advantage in relation to available commercial molluscicides that kill fish at product doses lower than those that kill GAS (e.g., niclosamide). The product was also tested preliminary under field conditions in Northern Argentina with similar GAS mortality results. A preliminary LC/ESI-MS/MS study revealed that the husks contained a mixture of known and novel bidesmosidic and monodesmosidic saponins. However, the alkali treated husks did not contain monodesmosidic saponins as expected, but large molecular weight saponin derivatives, probably formed between the saponins and other compounds present in the quinoa hulls under alkaline conditions. Due to the complex nature of these compounds, no direct relationship could be established between product efficacy and a higher content of monodesmosidic saponins. The results suggested that the molluscicidal properties are probably related to the formation of more hydrophobic compounds after alkaline treatment that have higher affinity with the cholesterol present in GAS gills. (C) 2007 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-04-09
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cropro.2007.03.015
dc.identifier.eissn1873-6904
dc.identifier.issn0261-2194
dc.identifier.urihttps://doi.org/10.1016/j.cropro.2007.03.015
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78517
dc.identifier.wosidWOS:000253881100003
dc.information.autorucIngeniería;San Martín R;S/I;51656
dc.issue.numero3-5
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final319
dc.pagina.inicio310
dc.publisherELSEVIER SCI LTD
dc.revistaCROP PROTECTION
dc.rightsacceso restringido
dc.subjectPomacea canaliculata
dc.subjectChenopodium quinoa
dc.subjectsaponin
dc.subjectmolluscicide
dc.subjectTRITERPENE SAPONINS
dc.subjectSEEDS
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleNovel molluscicide against Pomacea canaliculata based on quinoa (Chenopodium quinoa) saponins
dc.typeartículo
dc.volumen27
sipa.codpersvinculados51656
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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