Karakterisasi Coating Pestisida Nabati Bibit Tanaman Vanili Berbahan Dasar Minyak Serai Wangi dan Parafin
Date
2022Author
Mukhlisin, Ahmad
Nugroho, Lilik Pujantoro Eko
Sukamto
Metadata
Show full item recordAbstract
Fusarium oxysporum merupakan jamur patogen yang dapat menyebabkan
penyakit busuk batang pada tanaman vanili. Jamur patogen ini dapat menginfeksi
tanaman vanili melalui luka atau jaringan terbuka pada bagian perakaran dan batang
akibat kerusakan mekanis. Penelitian ini secara umum bertujuan menganalisis sifat
fisik larutan coating skala in vitro dari bahan dasar minyak serai wangi dan parafin.
Secara khusus penelitian ini bertujuan menganalisis ketebalan film, laju transmisi
uap air, kelarutan film, dan kadar air film, menganalisis efektivitas bahan coating
terhadap daya hambat jamur, dan memilih konsentrasi bahan utama penyusun
coating yang terbaik. Penelitian ini dimulai dengan membuat larutan emulsi parafin
dan dilanjutkan membuat formulasi larutan coating dengan mencampurkan bahan
utama, yaitu konsentrasi minyak serai wangi (5%, 8%, 12%) dengan konsentrasi
emulsi parafin (8%, 10%). Memilih konsentrasi terbaik berdasarkan ketebalan film,
laju transmisi uap air, kelarutan film, dan kadar air film serta nilai pH dan
pertumbuhan koloni jamur. Formulasi larutan coating yang dihasilkan yaitu S5P8,
S5P10, S8P8, S8P10, S12P8, dan S12P10. S12P10 menghasilkan sifat fisik terbaik
dengan ketebalan film 0,137 mm, laju tansmisi uap air 5,371 g/m².24jam, kelarutan
film 8841%, dan kadar air film 26,21% serta konsentrasi minyak serai wangi 12%
menghasilkan nilai pH 6,4 mampu menghambat pertumbuhan inokulum F.
oxysporum pada media PDA. Fusarium oxysporum is a pathogenic fungus that can cause stem rot
disease in many important crops, including vanilla. This pathogenic fungus can
infect vanilla plants through wounds or open tissue on the roots and stems due to
mechanical damage. Generally this study aims to analyze the physical properties of
the coating solution of in vitro based on citronella oil and parrafin as the basic
ingredients. Particullary this study aims to analyze the thickness of the film, the
rate of water vapor transmission, the solubility of the film, the moisture content of
the film, analyze the effectiveness of the coating material on the inhibition of fungi,
and selected the best concentration of the main ingredients that make up the coating.
This research was started by making a paraffin emulsion solution and continued to
make a coating solution formulation by mixing the main ingredients, namely the
concentration of citronella oil (5%, 8%, 12%) with a paraffin emulsion
concentration (8%, 10%). Selecting the best concentration based on film thickness,
water vapor transmission rate, film solubility, and film moisture content as well as
pH value and fungal colony growth. The resulting coating solution formulations are
S5P8, S5P10, S8P8, S8P10, S12P8, and S12P10. S12P10 produced the best
physical properties with a film thickness of 0,137 mm, a water vapor transmission
rate of 5,371 g/m².24 hours, a film solubility of 88,41%, a film moisture content of
26,21% and a concentration of 12% citronella oil produce a pH value of 6,4 able to
inhibit the growth of inoculum F. oxysporum on PDA media.