Abstrak. Hama ulat grayak (S. litura) merupakan salah satu hama yang menyebabkan daun berlubang tidak beraturan, sehingga mengganggu proses fotosintesis sehingga mengurangi produksi tanaman cabai sehingga perlu dilakukan penanganan hama. Tujuan dari penelitian untuk melihat perbandingan efektivitas B. thuringiensis dengan teknologi ozon yang dibangkitkan melalui reaktor Dielectric Barier Discharge Plasma dalam mengendalikan S. litura pada daun cabai di laboratorium.Metode penelitian terdiri dari beberapa tahapan yaitu (1) Pemeliharaan larva S. litura (2) Perlakuan dan Pengujian Ozon terhadap S. litura (3) Pengujian Toksisitas Isolat Bt terhadap S. litura. Parameter penelitian ini tentang mortalitas (%), dan perubahan persentase populasi (%). Perlakuan pemberian Bacillus thuringiensis sangat efektif dalam mengendalikan Spodoptera litura, hal ini terlihat pada 1 hari setelah aplikasi (HSA) sudah tampak hama ulat yang mortalitas (kematian), sedangkan perlakuan ozon mortalitas S. litura baru tampak pada 3 hari setelah aplikasi (HSA). Hasil penurunan jumlah hama S. litura pada aplikasi bakteri B. thuringiensis lebih cepat di hari ke 4 hari setelah aplikasi (HSA) yaitu 0 persentase ulat yang hidup, sedangkan perlakuan ozon sampai hari ke 10 HSA masih tersisa 20 % hama S. litura.Comparison of the Effectiveness of Bacillus thuringiensis with Ozone Technology in Spodoptera litura pest control in chili leaf (Capsicum annum)Abstract. The armyworm pest (S. litura) is one of the pests that causes irregular perforated leaves, thus disrupting the photosynthesis process thereby reducing the production of chili plants so that pest management is necessary. The purpose of this study was to compare the effectiveness of B. thuringiensis with ozone technology generated through the Dielectric Barrier Discharge Plasma reactor in controlling S. litura on chili leaves in the laboratory. The research method consisted of several stages, namely (1) Maintenance of S. litura larvae (2) Ozone treatment and testing of S. litura (3) Toxicity testing of Bt isolates against S. litura.The results of this study will reveal about mortality (%),and change in population percentage (%). The treatment with Bacillus thuringiensis was very effective in controlling Spodoptera litura, it was seen 1 day after application (HSA) the caterpillar pests showed mortality (death), while the ozone treatment of mortality of S. litura only appeared 3 days after application (HSA). The results of the decrease in the number of S. litura pests on the application of B. thuringiensis bacteria were faster on the 4th day after application (HSA), namely 0 percentage of live caterpillars, while the ozone treatment until the 10th day of DSA still remained 20% of S. litura pests.
ABSTRAKJamur tiram putih (Pleurotus ostreatus) merupakan salah satu produk makanan yang mudah mengalami kerusakan dan mempunyai waktu simpan pendek yaitu 1-2 hari. Produksi jamur tiram di Indonesia semakin tahun mengalami peningkatan sehingga dibutuhkan alternatif dalam menjaga umur simpan pada jamur. Salah satu teknologi yang masih terus berkembang adalah teknologi plasma ozon. Teknologi ini menggunakan plasma dingin untuk menghasilkan ozon (O3). Baru-baru ini, beberapa peneliti telah mengembangkan teknologi ozon untuk mejaga umur simpan pada produk pasca panen hortikultura. Penelitian bertujuan untuk mengetahui pengaruh penyimpanan jamur tiram putih (Pleurotus ostreatus) dengan teknologi plasma ozon yang dibangkitkan dengan teknik Double Dielectric Barrier Discharge Plasma (DDBDP). Hasil kosentrasi ozon pada penelitian ini yaitu 65 ppm dengan kapasitas ozon sebesar 5.85 gram/jam pada flowrate 1.5 (L/min) dan tegangan 9,5 kV. Ozon dialirkan ke dalam plastik yang berisi sampel jamur pada perlakuan (5, 10, 15, 20 dan 25) menit. Berdasarkan hasil uji perubahan susut yang dilakukan, diperoleh perubahan susut tidak terlalu significant mengalami penurunan pada perlakuan ozone 20 menit dan 25 menit. Kata kunci: Jamur tiram; ozone; Double Dielectric Barrier Discharge Plasma; produk hortikultura ABSTRACTWhite oyster mushroom (Pleurotus ostreatus) is a food product that is easily damaged and has a short shelf life of 1-2 days. The production of oyster mushrooms in Indonesia is increasing every year so that an alternative is needed to maintain the shelf life of mushrooms. One technology that is still developing is plasma ozone technology. This technology uses cold plasma to produce ozone (O3). Recently, several researchers have developed ozone technology to maintain shelf life in post-harvest horticultural products. This study aims to determine the effect of storing white oyster mushrooms (Pleurotus ostreatus) with ozone plasma technology generated by the Double Dielectric Barrier Discharge Plasma (DDBDP) technique. The results of the ozone concentration in this study were 65 ppm with an ozone capacity of 5.85 grams/hour at a flowrate of 1.5 (L/min) and a voltage of 9.5 Kv. Ozone was flowed into a plastic containing mushroom samples in the treatment (5,10,15, 20 and 25) minutes. Based on the results of the shrinkage change test carried out, it was found that the shrinkage change was not too significant and decreased in the 20 minute and 25 minute ozone treatment Keywords: Oyster mushroom; ozone; Double Dielectric Barrier Discharge Plasma; horticultural products.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.