IDENTIFIKASI SENYAWA BIOAKTIF ANTIFEEDANT DARI ASAP CAIR HASIL PIROLISIS SAMPAH ORGANIK PERKOTAAN
AbstractThe research aims to identify antifeedant bioactive substance in liquid smoke derived from pyrolisis of organic municipal waste. Samples were pyrolyzed in drum reactor at 505oC for five hours to produce char and condensed smoke turning into liquid smoke. The liquid smoke components are separated into n-heksan, etil asetat, metanol and water consecutively. The result is thickened with rotary evaporator. The resulting crude’s activity towards Spodoptera litura Linn larvae was tested with antifeedant method. The chemical components of active fraction are identified with GCMS. Crude resulting from thickening fractions of n-heksan, etil asetat, metanol and water are 0.3465 g; 2.3736 g; 0.8775 g and 0.3679 g consecutively. The highest activity of liquid smoke, fractions of water, methanol, etil asetat and n-heksan towards S. litura larvae at 1.00% concentration are 44.68%; 62.07%; 80.65%; 28.57% and 23.40%. Result of probit analysis towards these fractions shows that the highest activity is methanol fraction with EI50 value at 0.71. Identification with GCMS shows that the fractions contain 14 types of bioactive antifeedant substances with ?-butyrolacton as the main component
Authors who publish with this journal agree to the following terms:
- All articles published by Bumi Lestari Journal of Environment and Environmental Reseach Center Udayana University are made available under an open access license worldwide immediately. This means everyone has free and unlimited access to the full-text of all articles published in Bumi Lestari Journal of Environment, and everyone is free to re-use the published material given proper accreditation/citation of the original publication. Open access publication is supported by authors' institutes or research funding agency by payment of a comparatively article processing charge for accepted articles (See Author Fees). Bumi Lestari Journal of Environment and Environmental Reseach Center Udayana University publish articles under the Creative Commons Attribution License.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).