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Optimization Synthesis of Alkildietanolamide Using Response Surface Methodology In the Enzimatic Reaction of Ketapang Kernel Oil and Dietanolamide Sonia Larasati Datun; Dedy Suhendra; Erin Ryantin Gunawan
Jurnal Kartika Kimia Vol 3 No 2 (2020): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v3i2.64

Abstract

Tujuan dari penelitian ini yaitu untuk mengetahui kondisi optimum reaksi yang dapat menghasilkan persentase yield maksimal dan interaksi antar variabel pada sintesis alkildietanolamida secara enzimatis menggunakan lipozyme TL IM. Metode yang digunakan yaitu Response surface methodology (RSM) yang terdapat pada software design expert v.7. Hasil yang diperoleh yaitu kondisi optimum pada waktu reaksi 1,13 jam, suhu reaksi 32,05 °C, rasio dietanolamina : minyak (1 g : 9,57 mmol) dan rasio enzim : minyak (1 : 0,12) g dengan persen hasil prediksi sebesar 62,4542% dan persen hasil aktual sebesar 62,0000%. Interaksi antar variabel dapat diamati melalui model quadratic. Kata kunci: Surfaktan, Alkildietanolamida, RSM, Design expert v.7, Lipozyme
The separation of alkyldiethanolamide based on Kernel oil of Calophyllum inophillum fruit using High-Performance Liquid Chromatography Masrori Iqbal; Dedy Suhendra; Erin Ryantin Gunawan
Acta Chimica Asiana Vol. 5 No. 1 (2022)
Publisher : The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v5i1.78

Abstract

This study aimed to separate the synthesized alkyldiethanolamide from kernel oil Calophyllum inophyllum (Local name: Nyamplung) using High-Performance Liquid Chromatography (HPLC). HPLC column utilized was SGE ODS-2 reverse phase and UV detector 213 nm. The variables to obtain the optimum conditions for separating alkyldiethanolamide were mobile phase and flow rate. The mobile phase composition and the optimum separation flow rate obtained acetonitrile: water (90:10) and 1.5 mL/minute, respectively. The percentage compositions of amide fatty acids that had been successfully synthesized based on HPLC were linoleoyl diethanolamide (46-49%), oleoyl diethanolamide (27-29%), palmitoyl diethanolamide (11-14%), and stearoyl diethanolamide (9-11%).
Application of science and technology for farmer groups facing the cabbage caterpillar explosion in The Village of Sembalun Lawang, East Lombok Regency. Suripto Suripto; Dedy Suhendra; Sukiman Sukiman
Jurnal Pengabdian Magister Pendidikan IPA Vol 4 No 4 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (568.345 KB) | DOI: 10.29303/jpmpi.v4i4.1031

Abstract

The implementation of science and technology for community (IbM) farmer groups who are facing the problem of the cabbage caterpillar population explosion was carried out in Sembalun Lawang Village, East Lombok Regency. The IbM activity was designed based on the agreement between the IbM team and the Village Head of Sembalun Lawang together with the Sangka Bira Farmers Group and the Sebun Kedit Farmers Group in Sembalun Lawang Village. IbM activities are carried out with the stages of socialization, practice, and tutorials with various media used including blackboards, LCDs, manuals (leflet), seeds, saplings, specimens, and leaf dry powder of jayanti plants (S. sesban). Partners also provide media for this IbM activity, which includes cabbage plantations and water facilities. The results achieved at this stage are that farmers in Sembalun Lawang Village recognize jayanti plants as a source of natural insecticides, are skilled at drying leaves properly and making leaf solutions from Jayanti plants and trying to apply them as natural insecticides to control cabbage caterpillars on cabbage plants. The results of trials by farmers showed that direct administration of 50 ppm Jayanti leaf solution could kill 52 to 56% of cabbage caterpillars on cabbage plants. If the Jayanti leaf solution was stored for the previous 24 hours, then 50 ppm of the solution could only kill 15 to 16% of cabbage caterpillars. After participating in this IbM activity, the farmers were also able to identify the type of parasitoid insect, Diadegma semiclausum, which can control the cabbage caterpillar population. The outputs of this IbM activity include 1) Farmer's Guide Book (leflet) Making and Application of Insecticides from Jayanti Plants for Integrated Control of Cabbage Caterpillars, 2) IbM results publication at national seminars (poster presenter certificate), and 3) Publication of IbM results in national scientific journal (submitted). The next stage to be carried out is to monitor and continue the mentoring (tutorial) by the team to IbM participants in the implementation of Jayanti plant cultivation and the manufacture and use of Jayanti insecticide in controlling cabbage caterpillars on cabbage plantations in Sembalun Lawang Village, East Lombok Regency.The implementation of science and technology for community (IbM) farmer groups who are facing the problem of the cabbage caterpillar population explosion was carried out in Sembalun Lawang Village, East Lombok Regency. The IbM activity was designed based on the agreement between the IbM team and the Village Head of Sembalun Lawang together with the Sangka Bira Farmers Group and the Sebun Kedit Farmers Group in Sembalun Lawang Village. IbM activities are carried out with the stages of socialization, practice, and tutorials with various media used including blackboards, LCDs, manuals (leflet), seeds, saplings, specimens, and leaf dry powder of jayanti plants (S. sesban). Partners also provide media for this IbM activity, which includes cabbage plantations and water facilities. The results achieved at this stage are that farmers in Sembalun Lawang Village recognize jayanti plants as a source of natural insecticides, are skilled at drying leaves properly and making leaf solutions from Jayanti plants and trying to apply them as natural insecticides to control cabbage caterpillars on cabbage plants. The results of trials by farmers showed that direct administration of 50 ppm Jayanti leaf solution could kill 52 to 56% of cabbage caterpillars on cabbage plants. If the Jayanti leaf solution was stored for the previous 24 hours, then 50 ppm of the solution could only kill 15 to 16% of cabbage caterpillars. After participating in this IbM activity, the farmers were also able to identify the type of parasitoid insect, Diadegma semiclausum, which can control the cabbage caterpillar population. The outputs of this IbM activity include 1) Farmer's Guide Book (leflet) Making and Application of Insecticides from Jayanti Plants for Integrated Control of Cabbage Caterpillars, 2) IbM results publication at national seminars (poster presenter certificate), and 3) Publication of IbM results in national scientific journal (submitted). The next stage to be carried out is to monitor and continue the mentoring (tutorial) by the team to IbM participants in the implementation of Jayanti plant cultivation and the manufacture and use of Jayanti insecticide in controlling cabbage caterpillars on cabbage plantations in Sembalun Lawang Village, East Lombok Regency.
DEMONSTRASI KSK (KIMIA SEKITAR KITA) PADA SISWA SEKOLAH DASAR SEBAGAI UPAYA MENINGKATKAN MINAT SAINS SEJAK DINI Sri Seno Handayani; Erin Ryantin Gunawan; Dedy Suhendra; Lely Kurniawati; Murniati Murniati
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 2 No. 1 (2019): Februari
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.961 KB) | DOI: 10.29303/jppm.v2i1.1024

Abstract

Salah satu mata pelajaran yang masih dianggap sulit oleh siswa sekolah dasar adalah mata pelajaran sains. Sains atau IPA bagi kalangan pelajar khususnya siswa SD terkadang menjadi paradigma yang menakutkan, bahkan dapat menimbulkan ketakutan yang berlebihan. Hal ini dapat disebabkan oleh banyak faktor, antara lain proses pembelajaran sains atau IPA yang bersifat monoton, dimana siswa hanya menulis dan mendengarkan penjelasan yang diberikan gurunya saja. Akibatnya siswa akan kurang aktif  dan akan berdampak pada menurunnya minat dan motivasi belajar siswa. Permasalahan ini akan tetap bertahan bila tidak diupayakan kegiatan-kegiatan yang bersifat inovasi pembelajaran di kelas. Untuk itu diperlukan suatu usaha guna meningkatkan minat dan motivasi siswa terhadap mata pelajaran sains melalui metode pembelajaran yang menyenangkan. Salah satunya adalah melalui demonstrasi sains berbasis kimia sekitar kita yang bersifat konkrit, sederhana dan menarik, sehingga dapat meningkatkan rasa ingin tahu serta berminat untuk mempelajari sains di kalangan siswa sekolah dasar. Upaya ini telah dilaksanakan melalui Kegiatan Pengabdian Kepada Masyarakat yang bertema Edukasi Sains Melalui Demonstrasi Ksk (Kimia Sekitar Kita) di SD Negeri I Telaga Waru Labuapi Lombok Barat. Kegiatan ini berjalan dengan lancar serta menyenangkan bagi para siswa. Semua siswa dengan bersemangat ikut terlibat aktif dalam setiap percobaan yang didemontrasikan.
PENINGKATAN KETERAMPILAN KELOMPOK IBU-IBU PKK MELALUI PELATIHAN PEMBUATAN SABUN PADAT DARI MINYAK NON PANGAN (NON EDIBLE OIL) Sri Seno Handayani; Erin Ryantin Gunawan; Dedy Suhendra; Lely Kurniawati; Murniati Murniati
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 3 No. 1 (2020): Februari
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.586 KB) | DOI: 10.29303/jppm.v3i1.1732

Abstract

Salah satu keterampilan yang berpotensi menggerakkan tenaga kerja ibu rumah tangga adalah pembuatan sabun padat. Sabun padat merupakan salah satu produk home industry yang dapat menjadi modal bagi ibu-ibu PKK untuk menumbuhkan kreatifitas mereka dan menumbuhkan jiwa wirausaha bagi mereka. Hal ini menjadi salah satu upaya yang telah dilaksanakan melalui Kegiatan Pengabdian Kepada Masyarakat yang bertema peningkatan keterampilan kelompok ibu-ibu pkk jempong melalui pelatihan pembuatan sabun padat dari minyak non pangan (non edible oil). Kegiatan ini berjalan dengan lancar serta menyenangkan bagi para ibu-ibu. Semua peserta dengan bersemangat ikut terlibat aktif dalam setiap tahapan kegiatan. Produksi sabun padat sudah banyak dipasaran, namun masih menggunakan bahan minyak pangan dan bahan baku sintetik yang tidak aman dan berbahaya. Pada kegiatan pengabdian ini telah dilakukan pelatihan pembuatan sabun berbasis minyak non pangan yang aman dan ramah lingkungan. Pelaksanaan Kegiatan Pengabdian Masyarakat ini bertujuan untuk memberikan pengetahuan dan keterampilan dalam pembuatan sabun padat kepada ibu-ibu PKK. Kegiatan ini dilaksanakan dalam beberapa tahap yaitu: pendataan peserta, penyampaian materi dan pendampingan praktek pembuatan sabun oleh Tim Pengabdian.