TERMITICIDAL ACTIVITY OF Toona sinensis WOOD VINEGAR AGAINST Coptotermes curvignathusHolmgren

Abstract

Termiticidal activity of wood vinegar from Toona sinensis (TS) sawdust has been evaluated against Coptotermes curvignathus. TS wood vinegar was produced at 250-300°C pyrolysis temperature, and a no-choice test was applied for evaluating termiticidal activity with thirty-three active termites. The concentrations of TS wood vinegar in the dried filter paper was prepared to 0% (solvent only), 2%, 4%, 6%, and 8%. The TS wood vinegar showed strong termiticidal activity and that concentrations of wood vinegar significantly influenced mortality of termite. The termite mortality increased when the concentration of wood vinegar increased, at a concentration of 8% all termites dead after 3 days tested. Forty constituents were characteristic on the basis of GC-MS data, and 33 components were identified. The organic compounds in TS wood vinegar were classified into carboxylic acids, phenols, ketones, amides, aldehydes, furans, esters, alcohols, sugar derivative, and ether, and among of this components, acetic acid comprised 57.43%. The contents of organic fraction of TS wood vinegar and largely acetic acid might be responsible for the termiticidal activity. Base on physicochemical properties, TS wood vinegar has a good quality as well.

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“…Asap cair (liquid smoke) merupakan teknologi konversi biomassa melalui penguraian senyawa kimia organik menjadi senyawa penyusunnya (Ardila, Thamrin, WS, & Eddiyanto, 2013). Produksi asap cair pada umumnya menggunakan teknik pirolisis (Adfa et al, 2017;Pimenta, Fasciotti, Monteiro, & Lima, 2018;Yang, Yang, Liang, Gao, & Wu, 2016), dimana biomassa dipanaskan lebih dari 300°C (A'yuni, Darmadji, & Pranoto, 2017) sampai 450°C (Pimenta et al, 2018), dan asap dikondensasi menjadi bentuk cairan (Adfa et al, 2017;Ardila et al, 2013;Yang et al, 2016). Teknologi ini merupakan teknologi ramah lingkungan (Ariyani, Mujiyanti, & Harlianto, 2015;Wijaya, Wiharto, & Anwar, 2018) yang dapat mengurangi pelepasan CO 2 ke udara.…”

Efficacy of Liquid Smoke Produced from Medang Wood (Cinnamomum sp.) against Schizophyllum commune

“…Raw materials such as wood or biomass to manufacture liquid smoke contain the main components as cellulose, hemicellulose, and lignin (Kan et al 2016). Some researchers have reported that liquid smoke can be used as an anti-termite (Adfa et al 2017;Indrayani et al 2012;Oramahi et al 2014), antifungal (Adfa et al 2020;Oramahi and Yoshimura 2013;Subekti and Yoshimura 2020), and insect repellents (Prabowo et al 2016;Sapindal et al 2018).…”

Effects of Several Botanical Insecticides Applied in Different Periods to Control Aphids (Macrosiphoniella sanborni Gillete) on Chrysanthemum

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