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Ahmad Akromul Huda
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Protech Biosystems Journal
Published by Universitas Muhammadiyah Mataram
ISSN : 28094425     EISSN : 28094425     DOI : ttps://doi.org/10.31764
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Energy Engineering
Protech Biosystems Journal is a peer-refereed open-access journal which has been established for the dissemination of state-of-the-art knowledge in the field of Agricultural Enginering (Agricultural Mechanization, waters and land resources Engineering, Energy, Bioprocess and Postharvest Technology) and related subjects in this field.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 54 Documents
 1   2   3   4   5 
Effect of Dose and Type of Liquid Organic Fertilizer on Early Growth of Cocoa Seedlings (Theobroma Cacao L.) Faisal Gunawan, Muhammad; Subroto, Gatot; Savitri, Dyah Ayu; Farisi, Oria Alit
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20840

Abstract

The purpose of this research was to determine the effect of dose and type of liquid organic fertilizer as well as the interaction between dose and type of liquid organic fertilizer on the early growth of cocoa seedlings. This study used various kinds of POC namely GDM, NASA, Hantu and Guano. To support the success of POC application, different doses were also used in the treatment. The research was conducted in the greenhouse of Patrang Sub-district, Patrang District, Jember Regency in 2023. This study used a complete randomized design (CRD) with 2 factors. The first factor is the dose consisting of 3 levels, namely D1 (10ml/plant), D2 (15ml/plant) and D3 (20ml/plant). The second factor is the type of liquid organic fertilizer consisting of 4 levels, namely P1 (GDM), P2 (NASA), P3 (Superior plant hormone (Hantu)) and P4 (Guano). The results showed there was no interaction between dose and various kinds of liquid organic fertilizers. The application of dose affected the wet weight of plants and leaf area. Various kinds of liquid organic fertilizers affected the number of branches of cocoa seedlings.
Managing Raw Materials for a Synthetic Leather Company Using Material Requirement Planning (Case Study: PT.XYZ) Faridah Farah Hapsari; R.B Seno Wulung
Protech Biosystems Journal Vol 3, No 1 (2023): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i1.15311

Abstract

PT XYZ is a company engaged in the synthetic leather manufacturing industry. PT XYZ often lacks raw materials which results in the production process not running smoothly and even stops. This is due to the company's production planning which still uses forecasting methods. The purpose of this research is to be able to control the supply of raw materials to prevent production delays. The method used is MRP (Material Requirement Planning) with the aim of knowing the amount and time of raw materials that must be available for the smooth production process.  The results showed that with the MRP method, the company can provide raw materials for production appropriately and have good information about the time to order raw materials so as not to experience a shortage of raw materials in inventory.
Design of a Biomass Gasification Stove for Corn Cob Waste Teguh Permadi; Budy Wiryono; Karyanik Karyanik; Asmawati Asmawati
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9518

Abstract

Stoves are one of the technologies that play an important role in energy utilisation at the household scale. The utilisation of biomass waste as a fuel source is because the waste has a significant energy content. Based on BPS statistics for corn production in 2016, NTB province reached 1,278,271 tonnes and increased in 2017 to reach 2,127,324 tonnes, based on these data it is possible that corn will produce corn cobs that have the potential to be developed into bioethanol and bioenergy. The purpose of this study was to design and build a household scale corn cob waste biomass gasification stove, determine the effect of variations in air flow velocity on room temperature in the combustion process of corn cob waste, determine the comparison of water boiling temperatures at variations in air flow velocity of 5.0 m/s, 10.0 m/s, and 15.0 m/s. The research method used is experimental method by conducting experiments and performance tests in the Agricultural Workshop Laboratory. The research was conducted by varying the speed of air entering the reactor with speed variations of 5.0 m/s, 10.0 m/s and 15.0 m/s. The parameters observed include combustion chamber temperature, water boiling temperature, and initial ignition time. The results showed that the air velocity variation of 15.0 m/s affected the highest combustion temperature with 359.13 with 100 grams of ash, then the highest water boiling temperature was 60℃, and the initial ignition was recorded at 2:20:31 minutes. From the results of this study, it can be said that using the highest speed variation can produce perfect combustion.
Physical Quality of Red Chili Powder (Capsicum Annum L.) Result Dian Purbasari; Rike Risdiyanti Eka Putri
Protech Biosystems Journal Vol 1, No 1 (2021): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v1i1.5978

Abstract

One of the horticultural commodities that are rapidly damaged is red chili. Red chili is one type of vegetable that has fairly high water content. As a result of the high water content, red chilies are easily wilted and rotted. One alternative is through the drying process of fresh red chilies into chili powder using the foam-mat drying method. The purpose of this study was to determine the physical quality of red chili powder with a combination of variations in drying temperature and developer dosage. The results of this study showed that at a drying temperature of 80°C and a 5% developer dose, the fastest drying time was 7-8 hours with the lowest moisture content being 8.44%. The highest yield value (9.08%) was at a drying temperature of 60°C; the value of the degree of fineness (FM) is 0.601; the value of the brightness level (L) is 51.95; the value of yellowness level (b) is 24.26; and the bulk density value is 0.495 g/ml. The highest value of grain size (D) at a drying temperature of 80°C is 0.00512 mm; the value of the level of redness (a) is 30.91; the value of water absorption (DSA) is 2.73 g/ml; and oil absorption (DSM) is 1.23 g/ml
Effect of treatment of low carbon steel tensile test specimen on tensile strength for tractor wheel axle Karyanik, Karyanik
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.20793

Abstract

This study aims to determine the tensile strength of low carbon steel material specimens against the influence of specimen treatment. The method used in the research is an experimental method using a Universal Testing Machine and Vernier Caliper, namely specimen treatment using heating and cooling treatments with certain temperatures or temperatures. The parameters observed include stress, strain, initial diameter and final diameter. The research was carried out in the workshop laboratory of the Faculty of Agriculture, Muhammadiyah Mataram University and the Mechanical Engineering Laboratory, Mataram University. The data obtained were analysed mathematically. The test results showed that carbon steel experienced an increase in stress at a peak point of 350 N/mm2 and broke at a point of 250 N/mm2 at a strain of 31%.
Cooling Characteristic Of Carrot Puree Purbasari, Dian; Setya Budi, Jaya Bagus; Taruna, Iwan
Protech Biosystems Journal Vol 2, No 2 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i2.12179

Abstract

Carrot is a plant that stores carbohydrates in large quantities, post-harvest processing of carrot in Indonesia still limited to get processed into the main ingredients of dishes. This study used two factor, ratio of carrot and water, and lenght of grinding time. The stage of measuring cooling characteristic start with the preparation of raw carrot, washing, peeling, cutting, grinding, and the cooling process (6°C). Cooling characteristic measured are the changing in temperature of puree during cooling process and cooling rate. This study used  the ratio of carrot and water 1:1 (100 gr:100 ml), 1:2 (100 gr:200 ml), 2:1 (200 gr:100 ml), and the lenght of grinding were 1, 2, and 3. The data was taken from 9 samples of treatment combinations. Changed values of combination temperature ranged from 26.98°C to 16.76°C, 27.44°C to 16.79°C, 28.79°C to 17.29°C, 25.81°C to 15.52°C, 28.04°C to 19.03°C, 29.99 to 19.19°C, 26.56°C to 16.96°C, 27.81°C to 19.10, and 27.72 °C to 19.53 °C. Highest average cooling rate occured in the first 5 minutes when the material temperature was still higher than the cooling medium, the cooling rate values in a row were: 0.21; 0.20; 0.30; 0.22; 0.20; 0.20; 0.14; 0.16; and 0.15.
Designing Vertical Type Mangosteen Leather Penepung Machine Ahmad Junaidin; Sirajuddin Haji Abdullah; Rosyid Ridho
Protech Biosystems Journal Vol 1, No 2 (2021): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v1i2.7022

Abstract

The mangosteen fruit (Garcinia mangostana L.) or nicknamed the queen of fruit is one of Indonesia's leading fruits. The mangosteen fruit consists of components in the form of seeds, fruit, pulp (pulp), and fruit skin. This mangosteen rind flouring device is a tool to assist in the flouring process in large quantities using an electric motor as a driving force. The method used in this research is an experimental method by conducting experiments directly in the field and in the laboratory. The design used was a completely randomized design (CRD) which consisted of 3 treatments using variations in the stages of material entry (load), namely: P1 = Load 100 g with a rotation of 1430 rpm, P2 = Load 200 g (100 g + 100 g) with a rotation 1430 rpm, P3 = Load 300 g (150 g +150 g ) with a rotation of 1430 rpm. The data analysis used in this research is a mathematical approach using Microsoft Excel and a statistical approach using ANOVA diversity analysis and a 5% BNJ follow-up test. This study uses 3 parameters, namely, capacity (kg/hour), power requirements (watts), and engine efficiency (%) with results that have no significant effect. The results of the design of the mangosteen rind flouring device of vertical type with dimensions of 58 cm long, 43 cm wide and 63 cm high. The effective working capacity of this mangosteen rind powder is found at P3 of 342.92 g/second with an output rotation of 1430 r pm which is used in testing the tool. The effective electric motor power is at P1 the average motor power usage is 7.08 watts. The percentage of engine efficiency in this study is found in P1 of 63.83%.
Testing the Effectiveness of Drip Irrigation Technique Design in Chili Cultivation on Dry Land Suwati, Suwati; Muanah, Muanah; Basirun, Basirun
Protech Biosystems Journal Vol 3, No 2 (2023): PROTECH BIOSYSTEM JOURNAL
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i2.21069

Abstract

Dry land is productive land that can operate all year round, but with minimal water availability it is one of the obstacles for chili farmers. Therefore, the right solution for this problem is by applying drip irrigation techniques. The purpose of this research was to design and test the performance of the design on chili cultivation in dry land. This study used an experimental method with a direct experimental design on community agricultural land, by making 3 treatment groups, namely P1: surface drip irrigation, P2: subsurface drip irrigation, and P3: open channel irrigation. In this study, the parameters to be studied were designing and conducting performance tests on emitter discharge, water drop uniformity, and wetted areas. The results showed that the drip irrigation design consisted of several components, including primary reservoirs, secondary reservoirs, emitters and pressure regulators. The results of the performance test of the drip irrigation technique design can be said to be feasible to apply based on the discharge value and the drop uniformity coefficient, and the growth of chili plants, both with subsurface and above-surface drip irrigation techniques, does not have a significant effect. So it can be concluded that the method of providing water with subsurface and above-surface irrigation is both said to be effective and efficient
Analysis of macronutrient content macro nutrient content in organic fertiliser using fermented betel leaf extract Amrullah, Shafwan; Ariskanopitasari, Ariskanopitasari; Tanggasari, Devi; Rizaldi, Lalu Heri; Mikhratunnisa, Mikhratunnisa; Radiansyah, Adi; Harjito, Harjito
Protech Biosystems Journal Vol 3, No 1 (2023): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v3i1.15920

Abstract

The use of organic fertilizers in Indonesia is increasing, this is due to the scarcity of synthetic fertilizers. Organic fertilizers have their own challenges in terms of the concentration they contain. In addition, some organic materials that exist today are very abundant, so it needs to be used as organic fertilizer, one of which is betel leaf. However, betel leaf itself is an additional ingredient that can increase the existing nutrient content. In this study, analysis of the macro elements in organic fertilizers was carried out by adding variations in the amount of betel leaf raw material. The research was conducted using variations of betel leaf extract 2%, 4%, and 6%. The test analysis in this study was in the form of N, P, and K levels. The results showed that the highest N content was in the 4% betel leaf variation, which was 0.1%, the highest P content was in the 2% variation, which was 0.04%, and the highest K content was at 2% variation, namely 0.066%. From these results, it can be said that there was no significant effect of the addition of betel leaf extract on the macro-nutrient content of liquid organic fertilizer. 
Ergonomic Analysis of Noise Level and Mechanical Vibration on Rice Grinding Machine in Sangia Village, Sape Districts, Bima Regency Isnaini Isnaini; Nazaruddin Nazaruddin; Budy Wiryono
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9428

Abstract

Rice milling equipment will really help farmers to process their produce continuously, but this tool has a weakness, namely mechanical vibrations and noise that arise when these tools operate. This study aims to determine the noise level of the rice milling machine and analyze the noise level of the rice milling machine. The method used in this research is an experimental method by conducting direct tests in the field. This study was designed using a Randomized Block Design (RAK). Parameters in this research include vibration value, noise level, work capacity, tool efficiency, and yield. Observational data were analyzed by analysis of variance at a significance level of 5%. If there is a treatment that has a significant effect, then it is further tested using the Honestly Significant Difference (BNJ) test at the same significant level. The results showed that the noise level of the rice milling machine at 600 Rpm (72.9 db) was lower than the rice milling machine in the first treatment, namely 1000 Rpm (74.5 db) and in the second treatment, 800 Rpm (73.5 db). db). The mechanical vibration of the rice milling machine at 600 Rpm (10.3 Hz) was lower than the rotation of the rice grinding machine at 1000 Rpm (12.5 Hz) and in the second treatment 800 Rpm (11.3 Hz).

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