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AKTIVITAS ANTI NYAMUK MIKROKAPSUL MINYAK ASIRI Citrus aurantifolia TERHADAP Aedes aegypti Nila Sari Pandiangan; Luthfia Pratiwi; Diana Rakhmawaty Eddy; Tatang Wahyudi; Agus Surya Mulyawan; Euis Julaeha
Arena Tekstil Vol 36, No 2 (2021)
Publisher : Balai Besar Tekstil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31266/at.v36i2.7337

Abstract

Pada penelitian ini, telah dilakukan evaluasi sifat antinyamuk dari mikrokapsul yang berisi minyak asiri kulit jeruk nipis (Citrus aurantifolia) terhadap nyamuk Aedes aegypti. Preparasi minyak asiri dilakukan dengan metode hidrodistilasi; pembuatan mikrokapsul dengan metode koaservasi kompleks menggunakan penyalut alginat-gelatin, pengikat silang glutaraldehid, dan pengemulsi span-80 dan tween-80; pelepasan minyak asiri dalam mikrokapsul dilakukan dengan rangsangan magnetic stirrer 100 rpm; dan uji aktivitas antinyamuk dilakukan terhadap nyamuk A. aegypti. Hasil preparasi minyak asiri diperoleh rendemen sebesar 0,44%, dengan kualitas baik, berwarna kuning pucat dengan aroma segar khas jeruk nipis, komponen utama minyak asiri d-limonen (33,14%) dan b-pinen (28,32%). Mikrokapsul diperoleh dengan rendemen sebesar 47,3%, oil content sebesar 66,7%, dan efisiensi enkapsulasi sebesar 87,9%. Rata-rata pelepasan minyak asiri dari mikrokapsul dari hari pertama hingga hari ketujuh berkisar 44,7-65,9%.  Nilai % total perlindungan dari minyak asiri C. aurantifolia utuh lebih tinggi daripada limonen dan mikrokapsul, hal ini menunjukkan ada kerja sinergis antara komponen-komponen yang terdapat dalam minyak asiri. Rentang total perlindungan terhadap nyamuk A. aegypti antara 85,0-98,8%.
BINDER EFFECTIVENESS ON COTTON FABRIC FINISHING WITH MICROCAPSULES USING PADDING agus surya mulyawan; tatang wahyudi
Arena Tekstil Vol 33, No 1 (2018)
Publisher : Balai Besar Tekstil

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (582.782 KB) | DOI: 10.31266/at.v33i1.3900

Abstract

One of the processes to improve the function of cotton fabric is microcapsule finishing. Microcapsules are expected to have adequate resistance to surface of cotton fabric. However, since microcapsule shell has no chemical bond with cotton fabric, a binder is used for example polyacrylic and polyurethane. The aim of this research is to study the effectiveness of polyacrylic and polyurethane binder in cotton fabric microcapsule finishing using padding technique. The cotton fabric is immersed in a solution of microcapsules and binder for (5-10) minutes at room temperature, press with 90% Wet Pick Up (WPU), dried at 100 ° C for 60 seconds then followed by a temperature of 110 ° C for 120 seconds. The cotton finishing fabric of microcapsule observed from its surface with Scanning Electron Microscope (SEM), tested its washing fastness with Launder-O-meter, its tensile strength with tensile tester, and its stiffeness with stiffeness tester. Particle size of microcapsules analyzed with Particle Size Analyzer (PSA), and shell of microcapsule with Fourier Transform Infra Red (FTIR). Results showed that the microcapsule size of 1.14 μm with melamine formaldehyde shell, the use of polyacrylate and polyurethane binder could maintain the microcapsules in the fabric up to ten times, increase the tensile strength and stiffness of cotton fabric.
Co-Authors Agus Surya Mulyawan Diana Rakhmawaty Eddy Euis Julaeha Luthfia Pratiwi Nila Sari Pandiangan