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PEMBERDAYAAN EKONOMI UNIT USAHA PRODUKSI ASAP CAIR DI DESA PATEMON, KECAMATAN TANGGUL, KABUPATEN JEMBER Bambang; Dwi Indarti; Asnawati Asnawati; Priza Pandunata
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 6 No 2 (2021): December
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/j-dinamika.v6i2.2535

CV Medipety Nusantara adalah mitra kegiatan yang merupakan unit usaha produksi asap cair yang berada di desa Patemon, kecamatan Tanggul, Kabupaten Jember. Produk asap cair yang dihasilkan mitra kegiatan masuk dalam katagori asap cair grade 2. Permasalahan utama unit usaha ini adalah terbatasnya segmen pasar dan minimnya varian produk berbasis asap cair. Dengan demikian diperlukan solusi untuk mengatasi permasahan dari mitra kegiatan ini. Kegiatan PKM ini secara umum bertujuan mengembangkan produk asap cair dari mitra kegiatan melalui teknik pemurnian asap cair. Secara khusus kegiatan ini bertujuan (1) memberikan pelatihan dan pendampingan tentang pemurnian asap cair untuk meningkatkan kualitas produksi asap cair dengan grade 1 sekaligus sebagai varian baru produk asap cair. (2) mengembangkan pemasaran produk asap cair berbasis web. Untuk mencapai sasaran kegiatan, metode yang dilakukan meliputi pelatihan pemurnian produk asap cair dan pengembangan strategi pemasaran melalui pemasaran berbasis web. Kegiatan pelatihan ini diikuti dengan pendampingan sebanyak tiga kali oleh tim kegiatan. Kegiatan pelatihan dan penyuluhan tentang penggunaan alat distilasi agar didapatkan produk grade 1 dilakukan di tempat mitra, sedangkan pelatihan tentang pengembangan web dan juga media penjualan online dialkukan di Jurusan Kimia oleh salah satu tim. Setelah pelatihan yang dilakukan di waktu berikutnya diadakan monitoring tentang penggunaan alat distilasi dan kendala di lapang.

Pengaruh Konsentrasi Asam Terhadap Sifat Fisik dan Muatan Permukaan Selulosa Termodifikasi Agus Wedi Pratama; Bambang Piluharto; Dwi Indarti; Tanti Haryati; Hardian Susilo Addy
ALCHEMY Jurnal Penelitian Kimia Vol 15, No 2 (2019): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.15.2.33756.315-328

Selulosa merupakan salah satu biopolimer melimpah yang banyak digunakan dalam berbagai bidang seperti kertas, energi dan material komposit. Hidrofilisitas, dapat diperbaharui, ramah lingkungan dan aman adalah sifat-sifat selulosa yang dapat berpotensi menjadi material maju. Berdasarkan sifat-sifatnya, selulosa dapat dimodifikasi untuk menghasilkan sifat fungsional yang sesuai dengan aplikasinya. Dalam penelitian ini, selulosa mikrokristalin (MCC) dimodifikasi melalui metode hidrolisis asam. Prinsip metode ini adalah penghilangan bagian amorf pada selulosa oleh asam, meninggalkan bagian kristal. Selain itu, ketika asam digunakan sebagai agen hidrolisis, maka akan menghasilkan muatan permukaan pada selulosa. Dalam penelitian ini, pengaruh berbagai konsentrasi asam pada struktur kimia, kristalinitas, morfologi dan muatan permukaan telah dikaji. Perubahan struktur selulosa dianalisis menggunakan Fourier Transform Infra Red (FTIR), kristalinitas menggunakan X-ray Diffraction (XRD), morfologi menggunakan Scanning Electron Microscopy (SEM) dan muatan permukaan menggunakan titrasi konduktomteri. Hasil analisis FTIR menunjukkan masuknya gugus sulfat pada struktur selulosa. Analisis XRD menunjukkan peningkatan kristallinitas dalam selulosa termodifikasi seiring bertambahnya konsentrasi asam. Hasil analisis morfologi menunjukkan partikel dalam selulosa termodifikasi (CM) lebih tersebar daripada MCC. Analisis titrasi konduktometri menunjukkan bahwa mengalami peningkatan muatan permukaan pada CM seiring dengan bertambahnya konsentrasi asam. Oleh karena itu, dapat disimpulkan bahwa pengaruh konsentrasi asam sulfat pada hidrolisis selulosa memberikan dampak yang signifikan pada sifat fisik dan muatan permukaan.Effect of Acid Concentration on Physical Properties and Surface charge of Modified Cellulose. Cellulose is one of abundant biopolymer that many widely used in various applications such as paper, energy and composite material. Hydrophilicity, renewable, biodegradable, and safety are cellulose properties that can became potential of advance materials. In the utilization, cellulose can be modified its properties for different purposes. In this work, microcrystalline cellulose (MCC) was modified by acid hydrolysis method. The principle of this method is removed amorphous region of cellulose by acid and leaving crystalline phase. Moreover, when acid was used as hydrolyzing agent, it produce the surface charge on cellulose. In this research, the effect of various concentration of acid on the chemical structure, crystallinity, morphology and surface charge have studied. The chemical structures were analyzed using Fourier Transform Infra Red (FTIR), crystallinity using X-ray Diffraction (XRD), morphology using Scanning Electron Microscopy (SEM), and surface charge using titration conductometric. The FTIR analysis result has successfully showed the entry of sulfate groups on the cellulose structure. The XRD analysis showed increasing crystallinity in Cellulose Modified (CM) with increase acid concentration. By morphology analysis, particles in CM more disperse than MCC. Analysis of conductometric titration shows that there is an increase in surface charge in CM as acid concentration increases. Thus, the effect of sulfuric acid concentration on hydrolysis of cellulose has a significant impact on physical properties and surface charge.

KELOMPOK TERNAK SAPI POTONG Muhammad Firdaus; Dwi Indarti
Jurnal Pengabdian Masyarakat IPTEKS Vol 4, No 2 (2018): JURNAL PENGABDIAN MASYARAKAT IPTEKS
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/pengabdian_iptek.v4i2.1843

Pengabdian ini berjudul “PKM Kelompok Ternak Sapi Potong di Desa Tanjung Rejo, Kecamatan Wuluhan, Kabupaten Jember, Provinsi Jawa Timur”. Permasalahan utama berkaitan dengan ketersediaan pakan yang dihadapi usaha ternak sapi potong ini adalah: (1) menjaga ketersediaan pakan hijauan, khususnya di musim penghujan, (2) membuat pakan dari bahan di sekitar mereka. Berdasar permasalahan tersebut, maka solusi yang ditawarkan adalah penyuluhan dan atau praktek tentang: (1) pemanfaatan sela-sela pekarangan/sawah yang dimiliki dengan menanam rumput terutama rumput gajah, (2) pembuatan fermentasi jerami untuk mengganti pakan hijauan, (3) pembuatan pakan konsentrat. Metode yang dipakai dalam pencapaian tujuan tersebut adalah : (1) Metode Pendekatan Personal kepada ketua dan anggota kelompok, (2) Metode Penyuluhan, dan (3) Metode Pendekatan Praktek. Hasilnya, Tim Pelaksana Pengabdian Kemitraan Masyarakat (PKM) telah melakukan penyuluhan dan praktek sehingga peternak mampu: (1) memanfaatkan di sela-sela pekarangan/sawah yang dimiliki dengan menanam rumput terutama rumput gajah, (2) pembuatan fermentasi jerami untuk mengganti pakan hijauan, (3) membuat pakan konsentrat dengan menggunakan bahan baku yang ada di sekitar mereka dengan penambahan probiotik, untuk menghasilkan pakan ternak berkualitas tinggi.Kata Kunci: PKM, Ternak, Sapi Potong, Pakan

Pengaruh Penerapan Rebusan Daun Salam terhadap Kadar Gula Darah pada Penderita Diabetes Mellitus Tipe 2 di Desa Kopek Kecamatan Godong Kabupaten Grobogan Irmawati, Nurisda Eva; Indarti, Dwi; Komsiyah, Komsiyah; Marahayu, Mustika
JIIP - Jurnal Ilmiah Ilmu Pendidikan Vol. 5 No. 6 (2022): JIIP (Jurnal Ilmiah Ilmu Pendidikan)
Publisher : STKIP Yapis Dompu

Diabetes Mellitus merupakan suatu penyakit kronis karena tubuh tidak dapat memproduksi insulin dengan cukup, oleh karena itu hiperglikemia adalah ciri khas Diabetes Mellitus. Menurunkan kadar glukosa darah perlu Perawatan dengan pharmalogicall dan nonpharmalogically. Salah satu pengobatan diabetes mellitus tipe 2 dengan non-farmalogik adalah daun salam. Daun salam merupakan tumbuhan alami yang mudah didapatkan, memiliki kandungan flavonoid yang dapat menurunkan kadar glukosa darah. Adapun tujuan penelitian ini untuk menganalisa pengaruh penerapan rebusan daun salam terhadap kadar gula darah penderita diabetes mellitus. Jenis penelitian ini adalah quasi eksperimen dengan desain Non Equivalent Control Group Design. Besar sampel 36 responden dengan tehnik sampling purposive sampling. Penelitian ini dilakukan di Desa Kopek Kecamatan Godong Kabupaten Grobogan. Uji statistik yang digunakan pada penelitian ini yaitu uji Wilcoxon. Hasil penelitian ini menunjukkan sebagian besar responden sebelum tindakan mengalami kadar gula darah tinggi yaitu sebanyak 9 responden (50%) dan setelah diberikan senam kaki kadar gula darah mayoritas mengalai penurunan sebanyak 17 responden (94.4%). Terdapat pengaruh yang signifikan sebelum dan sesudah diberikan rebusan daun salam (P value = 0.000) artinya p <0,05. Hal ini menunjukan bahwa ada pengaruh penerapan rebusan daun salam terhadap kadar gula darah pada pasien DM tipe 2. Penerapan rebusan daun salam dapat menurunkan kadar gula dalam darah dan bisa memperbaiki vitamin dan kimia dalam tubuh yang kurang.

Concept and Implementation Of Problem-Based Learning Model In Independent Curriculum Dwi Indarti; Siti Nur Jannah
Social, Humanities, and Educational Studies (SHES): Conference Series Vol 5 (2022): Social, Humanities, and Educational Studies (SHEs): Conference Series (Special Issue 2
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/shes.v5i6.81044

This research aims to describe the Problem-Based Learning (PBL) Learning Model concept and its implementation in the Independent Curriculum in elementary schools. The research method used is the literature review research method, namely comparing data from several journals, which have been analyzed and summarized based on the author's experience, existing theories, and models. This research shows that Problem-Based Learning is a learning approach that emphasizes solving meaningful problems for students. PBL engages students in authentic problem-solving, enabling the collaborative development of high-level knowledge and skills. The goal is to create contextual and relevant learning experiences to prepare students with problem-solving skills that can be applied in real life. Implementing PBL involves five main steps: 1) student orientation to the problem. 2) Organizing students. 3) Guiding individual and group investigations. 4) Develop and present the results of the work. 5) Analysis and evaluation of the problem-solving process. Although PBL has advantages, such as increasing student motivation and building critical skills, it also has disadvantages related to dependence on the teacher's role and challenges in managing classrooms with diverse students. Thus, PBL prepares students with knowledge and forms students into individuals who are ready to face the challenges of daily life and the future. It is very relevant to the independent curriculum.

The efficacy of Acorus calamus L. crude extract formulated in bentonite nanoparticles against Crocidolomia pavonana (Lepidoptera:Pyralidae) Purwatiningsih; Indarti, Dwi
Journal of Agriculture and Applied Biology Vol 4 No 2 (2023): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.04.02.07

The prospect of A. calamus extract to be botanical insecticides to control the insect pests is very promising. The insect control properties of the A. calamus are predominantly to have β-asarone, saponin and flavonoid. However, there are some factors limiting their efficacy. Short release rate at the point contact, the inherent volatility and vulnerability to oxidation and ultra-violet light are causing phytochemical changes during the application. Thus developing nanotechnology to increase their efficacy studied in this research. To develop the plant extract in nanoformulation, experiment on adsorption and desoption capacity were carried out with Acorus extract treated bentonite substrate analysed by GC techniques. In addition, to investigate the effectiveness of the plant extract treated bentonite were evaluated on Crocidolomia pavonana. Third instar larvae were used in the evaluation of antifeedant effect by using no choice methods. The results showed that Bentonite nanoparticles was effective in controlling the release of a bioactive element. Purifed clay bentonite for getting Na-bentonite increased the specific surface area of material therefore increased the adsorption site on the clay layer of the material. Crude extract of A.calamus can dissolve well in combination of water and organic solvents. Desorption experiments proved that Na-bentonite released more slowly than raw clay bentonite. Purification of bentonite to Na-bentonite resulted the changing of phytochemical properties bentonite which lead to an increase in the adsorption capacity of bentonite. In term of antifeedant evaluation based on damage to cabbage leaves seedling, the least damage was observed on leaves with nanoparticle plant extract formulation. The antifeedant index of A. calamus in nanoparticles formulation showed 25% higher that untreated cabbage plant seedling. The glasshouse trial was conducted to evaluate their efficacy on cabbage seedling. However, the brown leaves or phytotoxic effect has been found by the time the extracts nano formulation has been sprayed.

The efficacy of Acorus calamus L. crude extract formulated in bentonite nanoparticles against Crocidolomia pavonana (Lepidoptera:Pyralidae) Purwatiningsih; Indarti, Dwi
Journal of Agriculture and Applied Biology Vol 4 No 2 (2023): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.04.02.07

The prospect of A. calamus extract to be botanical insecticides to control the insect pests is very promising. The insect control properties of the A. calamus are predominantly to have β-asarone, saponin and flavonoid. However, there are some factors limiting their efficacy. Short release rate at the point contact, the inherent volatility and vulnerability to oxidation and ultra-violet light are causing phytochemical changes during the application. Thus developing nanotechnology to increase their efficacy studied in this research. To develop the plant extract in nanoformulation, experiment on adsorption and desoption capacity were carried out with Acorus extract treated bentonite substrate analysed by GC techniques. In addition, to investigate the effectiveness of the plant extract treated bentonite were evaluated on Crocidolomia pavonana. Third instar larvae were used in the evaluation of antifeedant effect by using no choice methods. The results showed that Bentonite nanoparticles was effective in controlling the release of a bioactive element. Purifed clay bentonite for getting Na-bentonite increased the specific surface area of material therefore increased the adsorption site on the clay layer of the material. Crude extract of A.calamus can dissolve well in combination of water and organic solvents. Desorption experiments proved that Na-bentonite released more slowly than raw clay bentonite. Purification of bentonite to Na-bentonite resulted the changing of phytochemical properties bentonite which lead to an increase in the adsorption capacity of bentonite. In term of antifeedant evaluation based on damage to cabbage leaves seedling, the least damage was observed on leaves with nanoparticle plant extract formulation. The antifeedant index of A. calamus in nanoparticles formulation showed 25% higher that untreated cabbage plant seedling. The glasshouse trial was conducted to evaluate their efficacy on cabbage seedling. However, the brown leaves or phytotoxic effect has been found by the time the extracts nano formulation has been sprayed.

Protein Adsorption on Modified Bacterial Cellulose Piluharto, Bambang; Sulistyowati, Fitri; Indarti, Dwi; Busroni, Busroni
Computational And Experimental Research In Materials And Renewable Energy Vol 3 No 1 (2020): May
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v3i1.26413

The protein adsorption was interesting study, especially in the biological fluidic application. In the present study, we study the protein adsorption behavior on the bacterial cellulose and modified bacterial cellulose. In here, bacterial cellulose was modified by acid hydrolysis using hydrochloric acid. The contact time and pH were used as variable to study protein adsorption behavior on the modified bacterial cellulose. As the results, based on functional group analysis, there are not different between bacterial cellulose and modified bacterial cellulose. However, after modification, there was increasing of crystallinity of bacterial cellulose from 84.5% to be 87.7%. In the protein adsorption study, increasing the contact time increase percent adsorption until contact time of 90 minutes, however the further contact time relatively constant. The protein adsorption on both of bacterial cellulose and modified bacterial cellulose decreases, following the increase of pH.

Improvement of Acid-Base Materials Understanding SMAI Gumukmas Students with Simple Practicum Haryati, Tanti; Zulfikar, Zulfikar; Indarti, Dwi
Jurnal Inovasi Sains dan Teknologi untuk Masyarakat Vol. 1 No. 2 (2023): November
Publisher : Faculty of Mathematics and Natural Sciences, University of Jember. Jl. Kalimantan No.37, Krajan Timur, Jemberlor, Kec. Sumbersari, Jember Regency, East Java 68121

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/instem.v1i2.465

SMAI Gumukmas is a privately-funded high school situated in Purwoasri Village, Gumukmas District, Jember, with a B accreditation status. The absence of laboratory resources challenges devising inventive, uncomplicated, and pragmatic classroom learning, such as Chemistry. Collaboration between SMAI Gumukmas and the Chemistry Department lecturers to conduct community service is a mutually beneficial initiative that fosters curriculum innovation and practicum subjects. Acid-base is a chemistry topic with material relevant to all grade levels and can be easily visualized through practical examples from everyday life. The methodology involves delivering a lecture or theoretical framework on acid-base, followed by practical work. The acid-base practical is designed to commence with comprehension of the acid-base concept, including everyday life examples, before progressing to classroom implementation. The acid-base theme learning activities and practicum at SMAI Gumukmas proceeded seamlessly and successfully. The initial class consisted of 40 students from grades 11 and 12, while the subsequent consisted of 33 grade 10 students. The students exhibited a positive response as their studies progressed with exemplifications derived from everyday life.

The Application of Slow Sand Filtration Technology for Improving Water Quality at Taman Gading Housing Area, Kaliwates District, Jember Muflihah, Yeni Maulidah; Utomo, Denny Trias; Handayani, Wuryanti; Sulistiyo, Yudi Aris; Andarini, Novita; Asnawati, Asnawati; Indarti, Dwi
Jurnal Inovasi Sains dan Teknologi untuk Masyarakat Vol. 1 No. 2 (2023): November
Publisher : Faculty of Mathematics and Natural Sciences, University of Jember. Jl. Kalimantan No.37, Krajan Timur, Jemberlor, Kec. Sumbersari, Jember Regency, East Java 68121

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/instem.v1i2.470

Water is a basic need for all living organisms. Water quality implies living quality. Several parameters influencing water quality include minerals, dissolved organic substances, and turbidity. The water consumed must meet proven water quality standards. However, water quality still needs to be improved in several areas before consumption. The well water in residential areas placed on rice fields generally needs to meet the requirements for consumption. Many Taman Gading housing complex residents, especially in RW 036 RT 006, still use the well water to meet their daily needs. The well water quality in this area tends to be smelly and somewhat misty. Proper treatment is needed to improve the quality of well water in this area to reduce the negative impact on the population's health in the long term. This training focused on well water purification and filtration using slow sand filtration technology (SPL) to improve water quality. This method uses activated charcoal, sand, gauze, and pumice as filter media in specific proportions. The use of this method is effective and efficient in reducing the turbidity level of the sample water to the threshold for drinking water (<500 ppm), with a neutral pH (close to 7.00). This technology is effortless for residents to use and apply independently at a relatively low cost.

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