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<title>Master Theses</title>
<link>http://repository.ipb.ac.id/handle/123456789/26</link>
<description>Master Theses of IPB's master student</description>
<pubDate>Mon, 22 Jun 2026 17:12:11 GMT</pubDate>
<dc:date>2026-06-22T17:12:11Z</dc:date>
<item>
<title>Pendekatan Sosial-Ekologi Pemanfaatan Hiu dan Pari di Muncar, Jawa Timur: Implikasi Bagi Konservasi</title>
<link>http://repository.ipb.ac.id/handle/123456789/173577</link>
<description>Pendekatan Sosial-Ekologi Pemanfaatan Hiu dan Pari di Muncar, Jawa Timur: Implikasi Bagi Konservasi
Gozali, Irianies Cahya
Pemanfaatan hiu dan pari di Indonesia, khususnya di wilayah Muncar, Jawa&#13;
Timur, menghadapi tantangan yang kompleks. Tantangan tersebut mencakup status&#13;
konservasi sejumlah spesies yang tergolong rentan secara global, tingginya&#13;
ketergantungan masyarakat pesisir terhadap komoditas tersebut sebagai sumber&#13;
mata pencaharian dan protein, serta isu keamanan pangan yang muncul akibat&#13;
potensi kontaminasi logam berat. Tekanan eksploitasi yang terus meningkat dan&#13;
ketidaktepatan regulasi turut memperburuk kondisi populasi hiu dan pari di alam.&#13;
Penelitian ini bertujuan untuk menganalisis interaksi pemanfaatan hiu dan pari&#13;
dalam sistem sosial-ekologi, menilai kelayakan konsumsi daging hiu dan pari&#13;
berdasarkan kandungan logam berat dan nilai gizi, serta merumuskan rekomendasi&#13;
pengelolaan yang berkelanjutan berbasis pendekatan sosial-ekologi.&#13;
Penelitian mengintegrasikan data empiris lapangan dengan analisis multi-&#13;
metode. Pendekatan sosial-ekologi digunakan untuk mengidentifikasi entitas aktor&#13;
dan entitas ekologi yang terlibat dalam pemanfaatan hiu dan pari, serta memetakan&#13;
situasi aksi (action situations) pada berbagai tingkat interaksi. Analisis keamanan&#13;
pangan dilakukan melalui pengukuran empat jenis logam berat (As, Pb, Hg, Cd)&#13;
mengacu pada standar SNI, dan batasan konsumsi dari SNI, BPOM, dan FAO.&#13;
Selanjutnya, analisis fuzzy logic diterapkan untuk mengevaluasi keberlanjutan&#13;
pemanfaatan berdasarkan faktor sosial (preferensi konsumsi), faktor ekologi (status&#13;
konservasi dan kandungan merkuri), serta kandungan protein.&#13;
Hasil penelitian menunjukkan bahwa pemanfaatan hiu dan pari di Muncar&#13;
melibatkan jejaring aktor yang luas, meliputi nelayan, pengepul, pengasap,&#13;
pedagang ikan, pemerintah daerah, dan penyuluh perikanan. Interaksi antar aktor&#13;
mencerminkan ketergantungan ekonomi dan sosial yang kuat, terutama antara&#13;
nelayan dan pengepul sebagai penyedia modal dan pasar. Secara ekologis, hiu dan&#13;
pari berperan sebagai predator tingkat trofik tinggi yang berinteraksi dengan ikan&#13;
target, sedangkan interaksi sosial-ekologi tercermin pada praktik penangkapan yang&#13;
menghasilkan tangkapan utama dan sampingan (bycatch) ikan hiu dan pari secara&#13;
bersamaan.&#13;
Analisis kandungan logam berat menunjukkan variasi antar spesies.&#13;
Konsentrasi merkuri tertinggi ditemukan pada Carcharhinus amblyrhynchos (0,96&#13;
mg/kg), kadmium pada Mobula thurstoni (0,07 mg/kg), timbal pada Carcharhinus&#13;
amblyrhynchos (0,20 mg/kg), dan arsen pada Neotrygon orientalis (2,53 mg/kg).&#13;
Sementara itu, kandungan protein pada delapan spesies yang dianalisis menunjukan&#13;
jenis ikan dengan kategori sedang hingga tinggi protein. Hal ini menunjukkan&#13;
potensi sebagai sumber pangan, namun tetap memerlukan perhatian terhadap risiko&#13;
kontaminasi logam berat.&#13;
Hasil analisis fuzzy logic menunjukkan bahwa pengelolaan berbasis spesies&#13;
merupakan pendekatan yang paling efektif dalam mendukung pemanfaatan ikan hiu&#13;
dan pari yang berkelanjutan serta menjaga tradisi konsumsi dan eksistensi mata&#13;
pencaharian. Spesies pari dari famili Dasyatidae, khususnya peda jenis Taeniura&#13;
lymma dan Neotrygon orientalis, kedua spesies ini memperoleh nilai rekomendasi&#13;
tertinggi berdasarkan kombinasi faktor sosial-ekologi dan nilai gizi. Meskipun&#13;
demikian, pemanfaatan kedua spesies ini tetap membutuhkan pengawasan ketat&#13;
untuk mencegah tekanan berlebih yang dapat mengancam kelestariannya. Terlebih,&#13;
hasil rekomendasi pada studi tidak dapat dipandang sebagai keputusan final, namun&#13;
harus terus dievaluasi melalui pengamatan lapangan, serta integrasi informasi&#13;
ilmiah terbaru untuk memastikan efektivitasnya dalam mendukung tujuan dari&#13;
konservasi hiu dan pari di Muncar dalam jangka panjang.; The utilization of sharks and rays in Indonesia, particularly in the Muncar&#13;
region of East Java, faces complex challenges. These challenges include the&#13;
conservation status of several species that are globally categorized as vulnerable,&#13;
the high dependence of coastal communities on these commodities as sources of&#13;
livelihood and protein, and food-safety concerns arising from potential heavy-metal&#13;
contamination. Increasing exploitation pressure and inadequate regulatory&#13;
measures further exacerbate the decline of shark and ray populations in the wild.&#13;
This study aims to analyse the interactions within shark and ray utilization in the&#13;
social–ecological system, assess the feasibility of consuming shark and ray meat&#13;
based on heavy-metal content and nutritional value, and formulate sustainable&#13;
management recommendations grounded in a social–ecological approach.&#13;
This research integrates empirical field data with a multi-method analytical&#13;
framework. The social–ecological approach is employed to identify the social&#13;
actors and ecological entities involved in shark and ray utilization, as well as to map&#13;
action situations across different levels of interaction. Food-safety analysis was&#13;
conducted by measuring four types of heavy metals (As, Pb, Hg, Cd) in accordance&#13;
with SNI standards and consumption limits established by SNI, BPOM, and FAO.&#13;
Furthermore, fuzzy-logic analysis was applied to evaluate the sustainability of&#13;
utilization based on social factors (consumer preferences), ecological factors&#13;
(conservation status and mercury concentration), and nutritional aspects (protein&#13;
content).&#13;
The findings indicate that shark and ray utilization in Muncar involves an&#13;
extensive network of actors, including fishers, middlemen, fish smokers, fish&#13;
vendors, local government, and fisheries extension officers. Interactions among&#13;
these actors reflect strong economic and social interdependencies, particularly&#13;
between fishers and middlemen, who serve as providers of both capital and market&#13;
access. Ecologically, sharks and rays function as high-trophic-level predators&#13;
interacting with target fish species, while social–ecological interactions are&#13;
reflected in fishing practices that simultaneously produce both target catches and&#13;
bycatch of sharks and rays.&#13;
Heavy-metal analysis shows substantial variation across species. The highest&#13;
mercury concentration was found in C. amblyrhynchos (0,96 mg/kg), cadmium&#13;
in M. thurstoni (0,07 mg/kg), lead in C. amblyrhynchos (0,20 mg/kg), and arsenic&#13;
in N. orientalis (2,53 mg/kg). Meanwhile, the protein content of the eight analysed&#13;
species falls within the medium to high category. These findings indicate their&#13;
potential as food sources, although risks associated with heavy-metal contamination&#13;
require careful consideration.&#13;
Results of the fuzzy-logic analysis show that species-based management is&#13;
the most effective approach to support sustainable shark and ray utilization while&#13;
maintaining local consumption traditions and livelihood continuity. Ray species&#13;
from the family Dasyatidae, particularly Taeniura lymma and Neotrygon orientalis&#13;
received the highest recommendation scores based on the combination of social–&#13;
ecological factors and nutritional value. Nevertheless, the utilization of these&#13;
species still requires strict monitoring to prevent excessive pressure that may&#13;
threaten their sustainability. Moreover, the recommendations from this study should&#13;
not be regarded as final decisions; instead, they must be continuously evaluated&#13;
through field monitoring and the integration of updated scientific information to&#13;
ensure their effectiveness in supporting long-term shark and ray conservation in&#13;
Muncar.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/173577</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Mekanisme Pembiayaan Usaha Kecil Berbasis Etnis dan Keluarga: Studi Kasus Warung Madura</title>
<link>http://repository.ipb.ac.id/handle/123456789/173572</link>
<description>Mekanisme Pembiayaan Usaha Kecil Berbasis Etnis dan Keluarga: Studi Kasus Warung Madura
Kurniawati, Nanda
Warung Madura merupakan salah satu bentuk usaha kecil berbasis etnis dan keluarga yang berkembang dalam ruang ekonomi masyarakat perkotaan. Keberadaannya tidak hanya berfungsi sebagai penyedia kebutuhan harian, tetapi juga menjadi representasi dari praktik kewirausahaan yang bertumpu pada pengalaman merantau, keterlibatan keluarga, kepercayaan, dan jaringan sosial sesama pelaku usaha. Karakter khas warung Madura terlihat dari lokasi yang dekat dengan permukiman, jam operasional yang panjang, harga yang bersaing, kelengkapan barang, serta pelayanan yang fleksibel terhadap kebutuhan pelanggan. Namun, di balik keunggulan tersebut, warung Madura menghadapi tantangan dalam aspek pembiayaan, terutama karena modal usaha masih banyak bersumber dari tabungan pribadi, arus kas harian, dukungan keluarga, dan hubungan informal dengan pemasok.&#13;
Melalui pendekatan kualitatif dengan desain studi kasus, kajian ini menggali pengalaman pemilik dan pengelola warung Madura di wilayah Jakarta, Bogor, dan Depok. Data diperoleh melalui wawancara mendalam dan didukung oleh studi literatur mengenai ethnic entrepreneurship, family business, dan microfinance. Hasil analisis menunjukkan bahwa warung Madura memiliki karakter kuat sebagai usaha berbasis etnis sekaligus usaha keluarga. Dari sisi etnis, usaha ini tumbuh melalui jaringan perantau, solidaritas sosial, pertukaran informasi, serta kemampuan membaca peluang pasar lokal. Dari sisi keluarga, pengelolaan usaha dijalankan melalui pembagian peran yang informal, keterlibatan suami-istri atau kerabat dekat, rasa saling percaya, tanggung jawab, dan harapan agar usaha dapat terus berlanjut dalam lingkungan keluarga.&#13;
Praktik pembiayaan warung Madura memperlihatkan tiga pola utama, yaitu pembiayaan internal, pembiayaan informal relasional, dan pembiayaan hibrida selektif. Alternatif pembiayaan yang disusun menyesuaikan dengan karakter usaha kecil berbasis etnis dan keluarga yang bertumpu pada relasi kepercayaan, keterlibatan keluarga, dan arus kas harian. Skema pembiayaan yang dirumuskan tidak hanya diarahkan untuk menjawab kebutuhan warung Madura, tetapi juga dilengkapi dengan basis implementasi yang dapat diterapkan pada usaha etnis lain dengan pola sosial dan usaha yang serupa. Penerapannya tetap perlu disesuaikan dengan kondisi komunitas, kapasitas pelaku usaha, pola jaringan sosial, serta kelembagaan yang tersedia. Dengan demikian, alternatif pembiayaan ini memiliki sifat kontekstual, tetapi tetap dapat direplikasi secara terbatas pada usaha kecil berbasis etnis lainnya. Hal ini menjadikan hasil pengembangan pembiayaan tidak hanya relevan bagi warung Madura, tetapi juga dapat menjadi rujukan bagi penguatan usaha kecil berbasis etnis dan keluarga secara lebih luas.; Warung Madura represents a form of ethnic- and family-based small enterprise that has developed within the economic landscape of urban communities. Its existence functions not only as a provider of daily necessities, but also as a representation of entrepreneurial practices rooted in migration experience, family involvement, trust, and social networks among business actors. The distinctive characteristics of warung Madura are reflected in its proximity to residential areas, extended operating hours, competitive prices, product completeness, and flexible services that respond to customer needs. However, behind these advantages, warung Madura faces challenges in financing, particularly because business capital is still largely sourced from personal savings, daily cash flow, family support, and informal relationships with suppliers.&#13;
Using a qualitative approach with a case study design, this study explores the experiences of warung Madura owners and managers in Jakarta, Bogor, and Depok. Data were obtained through in-depth interviews and supported by literature studies on ethnic entrepreneurship, family business, and microfinance. The analysis shows that warung Madura has strong characteristics as both an ethnic-based enterprise and a family business. From an ethnic perspective, this business grows through migrant networks, social solidarity, information exchange, and the ability to identify local market opportunities. From a family business perspective, business management is carried out through informal role distribution, the involvement of spouses or close relatives, mutual trust, responsibility, and the expectation that the business can continue within the family.&#13;
The financing practices of warung Madura reveal three main patterns, namely internal financing, relational informal financing, and selective hybrid financing. The proposed financing alternatives are designed to align with the characteristics of ethnic- and family-based small enterprises that rely on trust-based relationships, family involvement, and daily cash flow. The formulated financing schemes are not only intended to address the needs of warung Madura, but are also equipped with an implementation basis that can be applied to other ethnic enterprises with similar social and business patterns. Their application, however, needs to be adjusted to community conditions, business actors’ capacities, social network patterns, and the available institutional arrangements. Thus, these financing alternatives are contextual in nature, yet they remain replicable to a limited extent among other ethnic-based small enterprises. This makes the financing development not only relevant to warung Madura, but also a useful reference for strengthening ethnic- and family-based small enterprises more broadly.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/173572</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Strategi Pengembangan Quality of Work Life untuk Meningkatkan Keterikatan Karyawan (Employee Engagement) di PT XYZ</title>
<link>http://repository.ipb.ac.id/handle/123456789/173553</link>
<description>Strategi Pengembangan Quality of Work Life untuk Meningkatkan Keterikatan Karyawan (Employee Engagement) di PT XYZ
Mastra, Chika Asgara
Penelitian ini bertujuan untuk merumuskan strategi pengembangan Quality of Work Life (QWL) dalam meningkatkan employee engagement di PT XYZ, yang dilatarbelakangi oleh tingginya tingkat turnover karyawan, khususnya pada posisi Marketing seperti Account Executive (AE) dan Business Development (BD). Tingginya turnover tersebut berdampak pada ketidakstabilan organisasi, proses adaptasi kerja yang berulang, serta belum optimalnya pencapaian target perusahaan. Oleh karena itu, penelitian ini menempatkan QWL sebagai pendekatan strategis dalam meningkatkan employee engagement sekaligus menekan tingkat turnover karyawan.&#13;
Penelitian ini menggunakan pendekatan kuantitatif dan kualitatif dengan metode analisis deskriptif, Importance Performance Analysis (IPA), dan tabulasi silang (cross-tabulation). Penelitian dilakukan menggunakan metode sensus dengan melibatkan seluruh populasi sebanyak 52 responden yang terdiri atas karyawan aktif dan mantan karyawan PT XYZ. Analisis dilakukan dengan membedakan divisi Marketing dan non-Marketing untuk memperoleh prioritas strategi pengembangan QWL yang lebih spesifik sesuai karakteristik pekerjaan dan kondisi turnover pada masing-masing divisi. Pendekatan IPA digunakan untuk mengidentifikasi prioritas pengembangan faktor-faktor QWL berdasarkan kesenjangan antara tingkat kepentingan dan tingkat kepuasan karyawan, sedangkan tabulasi silang digunakan untuk menganalisis hubungan antara karakteristik responden dengan faktor-faktor QWL.&#13;
Hasil penelitian menunjukkan bahwa secara umum penerapan QWL di PT XYZ telah berada pada kategori baik, khususnya pada aspek komunikasi, kesehatan kerja, dan penyelesaian konflik. Namun demikian, tingkat employee engagement masih belum optimal, terutama pada aspek loyalitas, kedisiplinan, dan kontribusi interpersonal. Berdasarkan hasil analisis IPA, faktor pengembangan karir dan kompensasi menjadi prioritas utama perbaikan karena memiliki tingkat kepentingan yang tinggi namun tingkat kepuasan relatif rendah, terutama pada divisi Marketing. Pada divisi non-Marketing, faktor pengembangan karir juga menjadi prioritas utama yang perlu mendapat perhatian perusahaan. Hasil uji Chi-Square menunjukkan bahwa sebagian besar faktor QWL tidak memiliki hubungan yang signifikan dengan karakteristik responden, kecuali faktor pengembangan karir, kompensasi, kesehatan kerja, kebanggaan, dan keselamatan kerja yang memiliki hubungan signifikan dengan masa kerja.&#13;
Berdasarkan hasil tersebut, strategi pengembangan QWL difokuskan pada penguatan sistem pengembangan karir yang lebih terstruktur, penyempurnaan sistem kompensasi berbasis kinerja dan project value, serta optimalisasi kebijakan perusahaan yang telah berjalan dengan baik, seperti komunikasi internal, kesehatan kerja, dan penyelesaian konflik. Strategi yang dirumuskan disesuaikan dengan karakteristik masing-masing divisi, di mana pengembangan karir menjadi prioritas pada divisi Marketing maupun non-Marketing, sedangkan penyempurnaan sistem kompensasi diprioritaskan khususnya pada divisi Marketing. Strategi tersebut disusun berdasarkan hasil analisis IPA, tabulasi silang, kondisi existing perusahaan, serta telah dikonfirmasi melalui diskusi dengan pihak manajemen sehingga bersifat realistis, aplikatif, dan sesuai dengan kebutuhan organisasi. Implementasi strategi ini diharapkan mampu meningkatkan employee engagement, menurunkan tingkat turnover , mempertahankan talenta potensial, serta mendukung keberlanjutan organisasi dan pencapaian target bisnis perusahaan secara berkelanjutan.; This study aims to formulate a Quality of Work Life (QWL) development strategy to enhance employee engagement at PT XYZ. The research was motivated by the high employee turnover rate, particularly in Marketing positions such as Account Executives (AE) and Business Development (BD) personnel. The high turnover has led to organizational instability, repetitive adaptation processes for new employees, and suboptimal achievement of the company’s performance targets. Therefore, this study positions QWL as a strategic approach to improving employee engagement while simultaneously reducing employee turnover .&#13;
The study employed a mixed-methods approach, combining quantitative and qualitative methods through descriptive analysis, Importance Performance Analysis (IPA), and cross-tabulation analysis. A census method was applied by involving the entire population of 52 respondents, consisting of current employees and former employees of PT XYZ. The analysis differentiated between the Marketing and non-Marketing divisions to identify more specific QWL development priorities based on job characteristics and turnover conditions within each division. IPA was used to identify priority QWL factors by analyzing the gap between employees’ perceived importance and satisfaction levels, while cross-tabulation analysis was conducted to examine the relationship between respondent characteristics and QWL factors.&#13;
The findings indicate that, in general, the implementation of QWL at PT XYZ has been categorized as good, particularly in terms of communication, occupational health, and conflict resolution. However, the level of employee engagement has not yet reached an optimal level, especially regarding employee loyalty, work discipline, and interpersonal contribution. Based on the IPA results, career development and compensation emerged as the highest priority areas for improvement due to their high importance but relatively low satisfaction levels, particularly within the Marketing division. In the non-Marketing division, career development was also identified as the primary area requiring improvement. Furthermore, the Chi-Square analysis revealed that most QWL factors were not significantly associated with respondent characteristics, except for career development, compensation, occupational health, organizational pride, and workplace safety, all of which showed significant relationships with employees’ tenure.&#13;
Based on these findings, the proposed QWL development strategy focuses on establishing a more structured career development system, improving a performance- and project value-based compensation system, and optimizing organizational practices that have already been implemented effectively, such as internal communication, occupational health programs, and conflict resolution mechanisms. The strategy is tailored to the specific characteristics of each division, where career development becomes a priority for both Marketing and non-Marketing divisions, while compensation improvement is prioritized particularly for the Marketing division. The proposed strategy was formulated based on the results of IPA, cross-tabulation analysis, and the company’s existing conditions, and was further validated through in-depth interviews and discussions with the management team, ensuring that it is realistic, practical, and aligned with organizational needs. The implementation of this strategy is expected to enhance employee engagement, reduce turnover rates, retain high-potential talent, and support the long-term sustainability and business performance of the company.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/173553</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Analisis Metode Proses Produksi Biopelet Berbahan Limbah Tanaman Jagung dan Serbuk Kayu Sengon</title>
<link>http://repository.ipb.ac.id/handle/123456789/173545</link>
<description>Analisis Metode Proses Produksi Biopelet Berbahan Limbah Tanaman Jagung dan Serbuk Kayu Sengon
Rahmadani, Karina
KARINA RAHMADANI. Analisis Metode Proses Produksi Biopelet Berbahan &#13;
Limbah Tanaman Jagung dan Serbuk Kayu Sengon. Dibimbing oleh DYAH &#13;
WULANDANI dan LEOPOLD OSCAR NELWAN. &#13;
Kebutuhan energi yang terus meningkat mendorong pemanfaatan biomassa &#13;
sebagai sumber energi terbarukan melalui pengolahan limbah pertanian dan &#13;
kehutanan menjadi biopelet. Limbah tanaman jagung tersedia melimpah dengan &#13;
kadar air tinggi dan nilai kalor relatif rendah. Serbuk kayu sengon memiliki &#13;
karakteristik energi yang lebih baik sehingga berpotensi sebagai bahan campuran &#13;
untuk meningkatkan kualitas biopelet. Penelitian ini bertujuan menganalisis metode &#13;
proses produksi melalui kombinasi kadar air campuran bahan, kecepatan putaran &#13;
die, dan komposisi bahan terhadap performa pelletizer serta mutu biopelet. &#13;
Metode penelitian diawali dengan pengujian pendahuluan untuk menentukan &#13;
kondisi operasi yang sesuai pada mesin pelet. Kadar air campuran bahan ditetapkan &#13;
pada kisaran 37,00–40,85% (wb), kecepatan putaran die diatur secara bertahap pada &#13;
rentang 25–50 Hz untuk setiap siklus pemasukan bahan, serta digunakan lima &#13;
kombinasi komposisi bahan (A1–A5) dengan massa total 1,5 kg setiap perlakuan. &#13;
Pengujian utama meliputi evaluasi performa pelletizer dan mutu biopelet &#13;
berdasarkan parameter fisik, proksimat, nilai kalor, termofisik, kapasitas produksi &#13;
dan konsumsi energi listrik spesifik. Analisis statistik menggunakan one-way &#13;
analysis of variance (ANOVA) satu arah dan uji lanjut Tukey untuk mengevaluasi &#13;
pengaruh metode proses terhadap kepadatan dan ketahanan biopelet. &#13;
Hasil penelitian menunjukkan bahwa metode proses produksi memengaruhi &#13;
performa pelletizer dan karakteristik fisik biopelet. Kadar air campuran bahan &#13;
berperan dalam menjaga stabilitas aliran dan mengendalikan fluktuasi beban mesin. &#13;
Kecepatan putaran die memengaruhi tekanan pemadatan dan suhu gesek internal. &#13;
Komposisi bahan menentukan kemampuan ikat serta integritas struktur biopelet. &#13;
Analisis statistik parameter fisik menunjukkan bahwa perlakuan P4 menghasilkan &#13;
performa pelletizer paling konsisten berdasarkan nilai kepadatan dan ketahanan &#13;
mekanik dengan kondisi kadar air 40,85%, kecepatan putaran die 45–35–30 Hz, &#13;
serta komposisi bahan A4 (70% limbah tanaman jagung : 30% serbuk kayu sengon). &#13;
Metode proses produksi terbaik ditentukan berdasarkan evaluasi terpadu &#13;
antara performa pelletizer dan mutu biopelet menggunakan metode pembobotan &#13;
enam parameter. Perlakuan P3 memperoleh nilai tertinggi sebesar 4,90 dengan &#13;
kondisi kadar air 39,86%, kecepatan putaran die 40–30–25 Hz atau 120–90–75 rpm, &#13;
dan komposisi A3 (50% limbah tanaman jagung : 50% serbuk kayu sengon). Hasil &#13;
uji parameter biopelet meliputi nilai kalor 16,7–17,8 MJ/kg, kepadatan 0,89–1,28 &#13;
g/cm³, laju pembakaran 0,98–2,37 kg/jam, konsumsi energi listrik spesifik 1,98&#13;
4,39 kWh/kg, ketahanan 96,54–99,74%, serta kadar abu 0,20–0,30%. Penelitian ini &#13;
menyimpulkan bahwa pengaturan kadar air, kecepatan putaran die bertahap, dan &#13;
komposisi bahan yang tepat mampu meningkatkan performa pelletizer dan mutu &#13;
biopelet serta diperlukan penelitian lanjutan pada skala produksi dan analisis &#13;
ekonomi.; KARINA RAHMADANI. Analysis of Biopellet Production Process Methods &#13;
Using Corn Stover and Sengon Wood Sawdust. Supervised by DYAH &#13;
WULANDANI and LEOPOLD OSCAR NELWAN. &#13;
The continuously increasing demand for energy encourages the utilization of &#13;
biomass as a renewable energy source through the conversion of agricultural and &#13;
forestry residues into biopellets. Corn stover is abundantly available with high &#13;
moisture content and relatively low calorific value, while sengon wood sawdust has &#13;
better energy characteristics and potential as a blending material to improve &#13;
biopellet quality. This study aimed to analyze the production process method &#13;
through the combination of blended material moisture content, die rotational speed, &#13;
and material composition on pelletizer performance and biopellet quality. &#13;
The research method began with preliminary experiments to determine &#13;
suitable operating conditions for the pellet machine. The moisture content of the &#13;
blended material ranged from 37.00–40.8% on a wet basis, die rotational speed was &#13;
applied stepwise within the range of 25–50 Hz for each feeding cycle, and five &#13;
material composition combinations (A1–A5) were used with a total mass of 1.5 kg &#13;
per treatment. The main experiments included evaluation of pelletizer performance &#13;
and biopellet quality based on physical, proximate, calorific value, production &#13;
capacity, and specific electrical energy consumption parameters. Statistical analysis &#13;
was conducted using one-way analysis of variance (ANOVA) followed by Tukey’s &#13;
test to evaluate the effects of process methods on biopellet density and durability. &#13;
The results showed that the production process method influenced pelletizer &#13;
performance and the physical characteristics of biopellets. Moisture content &#13;
contributed to flow stability and control of machine load fluctuations. Die rotational &#13;
speed affected compaction pressure and internal friction temperature. Material &#13;
composition determined bonding ability and structural integrity of the biopellets. &#13;
Statistical analysis of physical parameters indicated that treatment P4 produced the &#13;
most consistent pelletizer performance based on density and mechanical durability, &#13;
with process conditions of 40.85% moisture content, die rotational speed of 45–35&#13;
30 Hz, and composition A4 (70% corn stover : 30% sengon wood sawdust). &#13;
The optimal production process method was determined through an integrated &#13;
evaluation of pelletizer performance and biopellet quality using a weighted scoring &#13;
method based on six parameters. Treatment P3 achieved the highest score of 4.90, &#13;
with process conditions of 39.86% moisture content, die rotational speed of 40–30&#13;
25 Hz or 120–90–75 rpm, and composition A3 (50% corn stover : 50% sengon &#13;
wood sawdust). The resulting biopellet parameters included calorific value of 16.7&#13;
17.8 MJ kg?¹, density of 0.89–1.28 g cm?³, combustion rate of 0.98–2.37 kg h?¹, &#13;
specific electrical energy consumption of 1.98–4.39 kWh kg?¹, durability of 96.54&#13;
99.74%, and ash content of 0.20–0.30%. This study concludes that appropriate &#13;
control of moisture content, stepwise die rotational speed, and material composition &#13;
improves pelletizer performance and biopellet quality, and further studies at the &#13;
production scale and economic analysis are required.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/173545</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
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