Claim Missing Document
Check
Articles

Photosynthetic Rate Prediction Model of Golden Melon Plant (Cucumis melo L.) at Vegetative Phase in Greenhouse using Artificial Neural Networks Erniati; Herry Suhardiyanto; Rokhani Hasbullah; Supriyanto
HAYATI Journal of Biosciences Vol. 31 No. 1 (2024): January 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.1.30-38

Abstract

The most critical parameter affecting plant growth is the photosynthetic rate. The parameter can be determined by measuring the rate of CO2 assimilation that occurs in plants. Developing a photosynthetic rate model can recommend proper cultivation maintenance in melon plants. Hence, the involvement of input parameters in the developed model affects the accuracy of the prediction. This study aims to develop an artificial neural networks (ANNs) prediction model of the photosynthetic rate of melon plants in the vegetative phase in the greenhouse based on seven environmental and growth parameters and find the best model structure. Model development uses artificial neural networks with several stages: data collection and pre-processing, model development with different input variations, model validation, and selection of the best scenario to predict photosynthetic rate. The results showed that five out of seven input parameters, i.e., air temperature, sunlight intensity, CO2 concentration, air humidity, and plant rows, in the model structure of five inputs, six hidden and one output were the best model scenarios with coefficient of determination (R2) and root mean square error (RMSE) of 0.986 and 0.420, respectively.
Strategi Pengembangan Bisnis Jasa Surveyor Independen Pada Unit Bisnis Batubara PT XYZ: Business Development Strategy of Independent Surveyor Service on Coal Business Unit PT XYZ Fajar Sidiq; Raden Dikky Indrawan Indrawan; Rokhani Hasbullah
Jurnal Aplikasi Bisnis dan Manajemen (JABM) Vol. 10 No. 2 (2024): JABM, Vol. 10 No. 2, Mei 2024
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.10.2.703

Abstract

Background: The market for coal exports from Indonesia expands annually; therefore, the government must issue a regulation to designate local technical verifier surveyors to inspect coal exports in order to manage the production and sale of coal. PT XYZ as a foreign surveyor service company needs to have the proper alternative strategy to respond to these government regulations. Purpose: The purpose of this study was to analyze the external and internal factors that affect PT XYZ’s business, formulate strategy alternatives, and determine the proper business strategy for coal unit business of PT XYZ. Design/methodology/approach: The analytical tools used for the macro and industry external environments were PESTEL and Porter’s Five Forces analysis, while the internal environment analysis used VRIO. Strategy alternatives were formulated by SWOT-TOWS analysis, and determination of strategy priority used hybrid AHP-SWOT (A’WOT) analysis. Findings/Result: The results showed that the opportunity factor is at the top of the list. At the sub-factor level, the external factor as the biggest opportunity is that other countries’ dependence on Indonesian coal is very high, and the biggest threat is that the government is still closing operating permits for foreign surveyors, while the internal factor as the biggest strength is accuracy and timely survey reports and laboratory results, and the biggest weakness is the cooperation contract with customers and local surveyors. Conclusion: The study concluded that the main priority of the 13 structured alternative strategies that can be implemented by PT XYZ is the WO2 strategy to increase the volume of work, which is a long-term cooperation contract other than spot-order work with customers.Originality/value (State of the art): The selection of PT XYZ as a foreign independent surveyor service company that operating in Indonesia in this study is different and has not been found in previous studies. Keywords: A’WOT, business strategy, coal, independent surveyor, quantity and quality inspection
Development of Vegetable Export Business Model Based on Farmer Partnerships Sunandar, Muhammad Prayoga; Hasbullah, Rokhani; Asnawi, Yudha Heryawan
JURNAL BISNIS STRATEGI Vol 32, No 2 (2023): December
Publisher : Magister Manajemen, Fakultas Ekonomika dan Bisnis Undip

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbs.32.2.1-8

Abstract

This study examines the development of company's business model, which initially relied on a single supplier to source vegetables, later evolved into a new business model through the introduction of partnerships with farmers, including direct purchasing and growing cabbage on the farm. Financial analysis shows a significant improvement in the company's performance, highlighted by increased revenue and greater social impact. Additionally, the company is now able to meet market demand by shipping 300 containers per year, an unprecedented achievement for the Taiwanese market. Management implications and strategic recommendations include expanding partnerships, capacity building for farmers, commitment to sustainable agricultural development, active market research and diversification of agricultural products.
Analisis Strategy Pengembangan Bisnis E-Commerce Pertamina Retail dengan Pendekatan Bisnis Model Kanvas Latief, Prori Vitaliano; Syarief, Rizal; Hasbullah, Rokhani
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 14 No. 1 (2019): Manajemen IKM
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (683.147 KB) | DOI: 10.29244/mikm.14.1.24-34

Abstract

The competition of oil and gas industri in Indonesia is very tight. To get survive from the competition; the company has to develop their technology. Nowadays, technological advancement have salient roles in improving the company's business. PT Pertaminan Retail is a large oil and gas company in Indonesia. This study analyzed the design of e-commerce business development models from PT Pertamina Retail called MyPertamina. The method of the study is descriptive analysis and using business model canvas (BMC), the Delphi method, SWOT (Strenghts, weakness, opportunities, & threats), and the Blue Ocean Strategy. The datas in this study were secondary dan primary data. The secondary data obtained from the literature study and the primary data was by interviewing six informants. The research period starts from November to December 2018. The results of mapping the initial business model that used BMC, showed several aspects such as: customer segments, value propositions, channels, revenue streams, key resources, key activities, key partners, and costs structure. Environmental analysis used the Delphi method and the result was key trend value was 25.48%, industri strength was 25.19%, market strengths was 24.78%, and macroeconomic strengths was 24.55%. MyPertamina's internal environment influenced by product aspects, infrastructure management, customer interface, and financial aspect. The results of the SWOT analysis of nine BMC unsurts showed that the highest strength was the key partnership and the lowest strength was customer relationship. Meanwhile, the biggest opportunity was value proposition and the lowest opportunity was cost structure. The highest threat was customer segment, and the lowest threat was key partners. The business development model in this research focused on customer segment, key partnership, and value proposition, unsurts developed using the blue ocean strategy method.
Shelf life prediction of cacao powder using isothermic sorption approach Hasbullah, Rokhani; Mahdania, Nadya Fazira Islah
Jurnal Keteknikan Pertanian Vol. 11 No. 3 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.3.294-306

Abstract

Tujuan dari penelitian ini adalah menentukan model kurva sorpsi isotermis bubuk kakao dan menduga umur simpan bubuk kakao pada kemasan standing pouch aluminium foil dan kraft dengan pendekatan sorpsi isotermis. Penelitian ini diawali dengan pembuatan bubuk kakao, penentuan kadar air bubuk kakao pada berbagai kelembaban relatif (RH) penyimpanan dan pendugaan umur simpan bubuk kakao pada kemasan standing pouch aluminium foil dan kraft dengan pendekatan sorpsi isotermis . Bubuk kakao diperoleh dengan cara menggiling menggunakan mesin pembubuk kakao dan mengayaknya menggunakan ayakan Tyler dengan ukuran mesh 60. Kadar air kesetimbangan (KAK) bubuk kakao diperoleh dengan menyimpan bubuk kakao pada berbagai kelembaban relative (RH) menggunakan larutan garam jenuh MgCl2, K2CO3, NaNO2, NaCl dan KCl. Model sorpsi isotermis diperoleh dengan memplotkan KAK dengan nilai aktivitas air (aw) (RH/100). Hasil penelitian menunjukkan bahwa model Hasley merupakan model paling tepat untuk menggambarkan fenomena sorpsi isotermis bubuk kakao dengan nilai Mean Relative Determination (MRD) paling kecil yaitu 2.007. Umur simpan bubuk kakao yang simpan dengan kemasan standing pouch aluminium foil pada penyimpanan suhu 30 °C dan kelembaban relatif (RH) 75% dan 80% berturut-turut adalah 665 hari dan 514 hari. Sedangkan dengan kemasan standing pouch kraft selama 293 hari dan 227 hari.
Business Development Strategy of Beverage Powder Company Mahasin, M. Zaenal; Hartoyo; Hasbullah, Rokhani
Jurnal Aplikasi Bisnis dan Manajemen (JABM) Vol. 10 No. 3 (2024): JABM, Vol. 10 No. 3, September 2024
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.10.3.942

Abstract

Background: Indonesia is currently experiencing the fourth wave of the coffee trend, characterized by a sharp increase in the market size of the coffee shop business. This growth is due to the ease of starting a coffee business and the emergence of digital businesses. Coffee trends have triggered an increase in domestic consumption of coffee and other drinks like chocolate and tea. The powdered beverage industry as a supporting ingredient for beverage shops has also increased with the rapid growth of modern drinks. In the last five years, this business has also increased following the growth of the ready-to-drink coffee business. Frezzo is one of the Small Medium Enterprises (SMEs) of powdered beverage that enters the medium industry category which is quite strong in the B-to-B segment. Meanwhile, Frezzo is experiencing idle capacity and achieving low market share in beverage industry. Purpose: The objective of the research is to focus on the challenges encountered by PT Frezzo. The challenges include optimizing production capacity and market share in the rapidly evolving beverage industry through analyzing both conditions, internal and external, that influence the business growth of Frezzo Powder. This research aims to develop priorities that strategic for Frezzo’s business advancement, as well. Design/methodology/approach: This research describes analytical tools used to solve the problems which include Business Model Canvas (BMC); Porter's Five Forces; Strength, Weakness, Opportunity, Threat (SWOT); Internal External Matrix (IE Matrix) and Quantitative Strategic Planning Matrix (QSPM). Findings/Result: The results of the analysis found that Frezzo had weaknesses in the retail sales aspect, lack of promotion and marketing network. The study concludes that there are priority strategies can be mapped into a new business model that should be applied rapidly. The priority strategies involve addition of new partnerships to cooperate with, such hotels, restaurants and cafes (horeca). Another priority is addition of Frezzo outlets and retailers in considerable towns. And then, new product differentiation in practical drinks, size variations, along with intense advertisement and promotions via Google, TikTok and YouTube. The last priority is addition of horeca sales representatives and procurement of fully automatic machines.Conclusion: To optimize production capacity and market share in the rapidly evolving beverage industry, company focus market penetration through infiltration of market comprises activities of promoting, discount or reduction of price, and comprehensive in distributing product. In this case, the activities of market penetration are conducted by extending avenues in reseller and Frezzo stores.Originality/value (State of the art): This research is useful for similar companies to provide an overview for business development by taking advantage of opportunities, level of competition and alternative strategies according to market segments and company characteristics. Keywords: beverage industry, beverage shops, priority strategies, Frezzo, business development
Faktor-Faktor yang Memengaruhi Kinerja dan Kepuasan Tenan di Inkubator Bisnis IPB Kristianingsih, -; Sumarwan, Ujang; Hasbullah, Rokhani
MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol. 12 No. 1 (2017): Manajemen IKM
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.575 KB) | DOI: 10.29244/mikm.12.1.84-92

Abstract

Business incubator is an assistance agency for beginner business which is believed to be able to generate professional, independent, and competitive entrepreneurs. This research aims to identify factors influencing the performance of business incubator’s tenants, and evaluate tenants’s satisfaction during their participation in business incubator. This research is conducted in Business Incubator of IPB by interviewing both inwall tenants and outwall tenants. The data obtained are analyzed using, Wilcoxon test with SPSS software, Importance Performance Analysis (IPA) and Customer Satisfaction Index (CSI). Result of this research reveals that performance of inwall and outwall  tenants are shown by the increase of gross profit, profit, number of employee, increase of product variants, number of customer, participation in training, the presence of business assistance, participation in training, the presence of business assistance, expansion of business place, expansion of business place. marketing expansion or number of agent, and the decline of complaints experienced by tenants. According to the calculation result of IPA,CSI, tenant satisfaction level on business incubator is categorized as good. Factor that is considered need to be improved by Business Incubator of IPB is adequate human resources performance improvement, especially for assistance and service toward tenants.
The Use of Chitosan Coating to Maintain the Quality of Cherry Tomatoes (Lycopersicum esculentum var. cerasiforme) Salsa Nurfadhillah; Rokhani Hasbullah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.21-30

Abstract

Cherry tomatoes are prone to deteriorate during storage. Proper post-harvest technology is needed to maintain the quality of cherry tomatoes. This research aims to examine the effect of chitosan coating and storage temperature on the quality of cherry tomatoes and determine the optimal treatment. Cherry tomatoes of the Fortesta variety were used for experiment. Cherry tomatoes were dipped in chitosan solution with concentrations of 1% and 2%, and control. Each group of cherry tomatoes was then stored at temperatures of 15°C and 25°C. The research was arranged under a factorial completely randomized design with three replications. Measurement was performed on respiration rate, weight loss, firmness, total soluble solids, and organoleptic tests (freshness, color, and aroma) of cherry tomatoes. The results showed that chitosan coating affects the respiration rate, weight loss, firmness, total soluble solids, and organoleptic tests. Storage temperature affects respiration rate, weight loss, firmness, total soluble solids, and organoleptic tests. Chitosan coating of 2% concentration and storage temperature of 15°C were the best treatments that were able to suppress respiration rate, weight loss, firmness, total soluble solids, and were still accepted by panelists on the 21st day of storage. In contrast, the control only lasted until the 12th day of storage. Keywords: Cherry tomatoes, Chitosan, Cold storage, Edible coating, Quality.
Optimizing Coffee Flavor Through Roasting and Manual Brewing Using Chemical and Sensory Approach: English Sukmawati, Elya; Pertiwi, Setyo; Hasbullah, Rokhani
Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.3.402-417

Abstract

The global popularity of coffee has led to growing attention on how processing and brewing techniques influence its sensory attributes. This study analyzed the chemical content of coffee and assessed the combination of roasting and manual brewing methods on coffee flavor. The coffee types used were Arabica coffee and Robusta coffee. The roasts used were light, medium, and dark roast with AeroPress, Siphon, and V60 manual brewing methods. The experiment was arranged in a factorial arrangement within a Randomized Complete Block Design (RCBD), where coffee varieties served as blocks, and the treatment combinations of roasting and brewing methods were randomly assigned within each block. Data analysis includes two-way analysis of variance, biplot analysis, and the compromise programming method. The results showed that the selection of roast level and brewing method had a significant influence on the coffee's chemical analysis and sensory profile. Light roasting and complex flavors were more acceptable than dark roasting, which tends to be heavy. Based on the panelists' preference analysis using the compromise programming method, RLS (Robusta-Light roast-Siphon) emerged as the optimal choice, indicating that this combination balances all coffee taste criteria. The combinations ALV (Arabica-Light roast-V60), ALA (Arabica-Light roast-Aeropress), and AMA (Arabica-Medium roast-Aeropress) which tends to similar and provide a balanced, complex flavor profile, including aroma, acidity, and high overall quality. Arabica coffee combination ADS (Arabica-Dark roast-Siphon), ADA (Arabica-Dark roast-Aeropress), and ADV (Arabica-Dark roast-V60) which have less optimal visual and balance because dark roasting reduces the sensory criteria of coffee.
Co-Authors . Setiadjit . Sukarno . Sutrisno Abdul Waries Patiwiri Achmad Fitrah Maulidin Addiena Syahvina Nasution Adhitya Yudha Pradhana Agus Ghautsun Niam Agus Sutejo Ahmad Yani Ahmad Yani Alhori Alhori Ali Parjito Amzul Rifin Andi Suryadi Anggitha Ratri Dewi Arief Daryanto Arif Imam Suroso Arif Suroso Aris Purwanto Astu Unadi Budi Nurtama Budi Rahardjo Cicih Sugianti Dadang . Damanik, Annisa Purnamasari Deasy Fitriani Desy Nofriati Desy Nofriati Deva Primadia Almada Dikky Indrawan Dondy A Setyabudi Dondy A Setyabudi DS Priyarsono Dwi Zuwarman Edi Suryanto Edy Hartulistiyoso Eka Priyana Elisa Nur Faizaty Elpodesy Marlisa Emmy Darmawati Erniati Erniati Erniati Esa Ghanim Fadhallah Eti Rohaeti Fahim M Taqi Fajar Sidiq Firdaus, Jonni Graita Gaiety Jatmiko Harli Prawaningrum Hartoyo Hasniar . Hayatri Sali Setia Heriyanto S Soba Herry Suhardiyanto I Wayan Astika I Wayan Budiastra Idham Sakti Harahap Iriando Wijaya Ita Zuraida Iyus Hendrawan Jayawarsa, A.A. Ketut Jeffrey Fransiscus Juniska Muria Sariningpuri Kaltika Setya Utami Sumariana Khoirul Mukhtarom Khoirul Umam Kristianingsih, - Latief, Prori Vitaliano Lidya Susanti Lilik Pujantoro Lilik Pujantoro Eko Nugroho Lista Eka Yulianti Lydia Ariani Machfud Machfud Machfud Machfud Mahasin, M. Zaenal Mahdania, Nadya Fazira Islah Maya Wulan Arini Memen Surahman Michael Alexander Hutabarat Mohamad Rahmad Suhartanto Mohamad Solahudin Muhammad Yusuf Antu MUHAMMAD YUSUF ANTU Nanik Purwanti Nelwan, Leopold Oscar nFN Setyadjit nFN Sukarno Nunung Nuryartono Nurhayati Nurhayati Nurman Susilo Nurul Imamah Nuzul Syah Putra Okky Setyawati Dharmaputra Parlaungan Adil Rangkuti Patiwiri, Abdul Waries Pramita Riskia D. P Purwiyatno Hariyadi Raden Dikky Indrawan Renny Anggraini Ridwan Rachmat Rimba Lestari Rio Viryawan Riska Indaryani Riska Juliana RIZAL SYARIEF Rizal Syarief Rizal Syarief Rofika Rochmawati Rozana - Ruri Wijayanti Salsa Nurfadhillah Selvi Marcellia Setiadjit Setiadjit Setyo Pertiwi Slamet Budijanto Sugiyono Sugiyono Sugiyono Sugiyono Sukarno Sukarno Sukmawati, Elya Sulusi Prabawati Sunandar, Muhammad Prayoga Supriyanto Supriyanto Supriyanto Suroso . Suroso Suroso Susi Lesmayati Susilo, Nurman Sutrisno , Sutrisno - Sutrisno Mardjan Sutrisno Sutrisno Sutrisno Sutrisno Tajuddin Bantacut Tjahja Muhandri Tri Yulni Ujang Sumarwan Usman Ahmad Warji Warji Yudha Heryawan Asnawi