GC-MS analiza in insekticidni učinki metanolnih izvlečkov listov divje pistacije (Pistacia khinjuk Stocks)

Sultan RAVAN, Abbas KHANI, Nahid VEYSI

Povzetek


Glede na okoljske izzive se uporaba spojin iz zelišč priporoča kot nadomestna metoda za metilbromid in fosfin. V raziskavi so bili preučevani insekticidni učinki metanolnih izvlečkov listov divje pistacije (Pistacia khinjuk Stocks) na dve vrsti škodljivih hroščevTribolium confusum (Jacquelin du Val, 1863) in Oryzaephilus surinamensis (Linnaeus, 1758)). Spojine v izvlečkih so bile analizirane z GS-MS metodo. Preiskus kontaktne strupenosti je bil izveden na 1 do 7-dni starih hroščih. LC50 vrednosti sta bili za malega mokarja 9.32 in za zobatega žitnika 5.47 mg ml–1. V metanolnih izvlečkih listov divje pistacije je bilo določenih več kot 39 spojin. Med njimi so imele glavne sestavine naslednje deleže: 5-etoksi-4-fenil-2-isopropilfenol (29,02 %), feniletilalkohol (10,78 %), benzilalkohol (7,8 %) in 1, 2-benzendiol (6,67 %). Med spojinami, določenih v izvlečkih, so bili tudi znani insekticidi kot so spatulenol (2,07 %), mircen (2,03 %), ρ-cimen (1,67 %), apiol (1,61 %), borneol (0,79 %), in pulegon (0,44 %). Vse to potrjuje, da bi lahko bili izvlečki iz listov divje pistacije uporabni za zaščito shranjenih pridelkov pred žuželkami.

Ključne besede


divja pistacija; insekticidi; mali mokar; zobati žitnik; rastlinski izvlečki

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2019.113.2.4

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