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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 5 Documents
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Search results for , issue "Vol 1, No 1 (2021): Protech Biosystems Journal" : 5 Documents clear
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
Design of a Compost Tablet Press System Nabila Agustina; Sirajuddin H Abdullah; Karyanik Karyanik
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.v1i1.5979

Abstract

Compost is an organic fertilizer whose basic ingredients are from weathering plant material or organic waste. However, the community has a few obstacles, namely the need for very large doses of fertilizer which often makes its use difficult. Therefore, efforts need to be made to overcome this problem, namely by making the fertilizer form into a solid form. So a tablet compost printer was made that can determine the capacity of the tool's mold with a press system. Analysis of the data used in this study is a mathematical approach using Microsoft Excel and a statistical approach using ANOVA diversity analysis and further test of Honest Significant Difference (BNJ) level 5%. The results showed that the higher the addition of hydrogel, the lower the dimension value, both weight, height and diameter of the tablet. The capacity of the mold in each treatment was carried out 3 times the average repetition of each treatment at P1 4.41 kg/hour, P2 6.10 kg/hour and P3 6.30 kg/hour the weight of the compost material affects the capacity of the mold, the heavier the material being printed, the higher the capacity of the mold.
Prediction of Land Area Harvest, Production, Rice Productivity: A Accuracy Analysis of ARIMA Methods Malik Ibrahim; Habib Ratu Perwira Negara; Syaharuddin Syaharuddin
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.v1i1.4776

Abstract

Abstract: This study aims to find out the best forecasting model with ARIMA method. The data used by this study is the area of harvest, production and productivity in East Java Province in 2000-2020. Data analysis used is ARIMA method with accuracy parameters used namely MSE, MAPE, and MAD. The results showed that (1) the error rate of ARIMA method in the harvest area, MAD value of 1,013,810,484; MSE value of 16,484,292,627,223; MAPE value of 48.25; (2) ARIMA method error rate in Production, MAD value of 5,975,703,193, MSE value of 5,886,684,845,403,590, MAPE value of 54.60; (3) the last error of ARIMA method in productivity, MAD value of 14,705, MSE value of 39,969, MAPE value of 25.62.  The simulation results showed that of the four mathematical models that became the output of G-MFS, the 1st mathematical model became the best model in determining the prediction results due to smaller error parameters with a predicted planting area of 1,728,503 m2, a production rate of 9.609057 tons, and a productivity of 57.145% Abstrak: Penelitian ini bertujuan untuk mengetahui model peramalan terbaik dengan metode ARIMA. Data yang digunakan penelitian ini adalah luas panen, produksi dan produktivitas di Provinsi Jawa Timur Tahun 2000-2020. Analisis data yang digunakan adalah metode ARIMA dengan Parameter akurasi yang digunakan yaitu MSE, MAPE, dan MAD. Hasil penelitian menunjukkan bahwa (1) tingkat kesalahan metode ARIMA di luas panen, nilai MAD sebesar 1.013.810.484; nilai MSE sebesar 16.484.292.627,223; nilai MAPE sebesar 48,25; (2) tingkat kesalahan metode ARIMA di Produksi, nilai MAD sebesar 5.975.703,193, nilai MSE sebesar 5.886.684.845.403,590, nilai MAPE sebesar 54,60; (3) terakhir kesalahan metode ARIMA di produktivitas, nilai MAD sebesar 14,705, nilai MSE sebesar 39,969, nilai MAPE sebesar 25,62. Hasil simulasi menunjukkan bahwa dari empat model matematika yang menjadi output G-MFS maka model matematika ke-1 menjadi model terbaik dalam menentukan hasil prediksi karena parameter error yang lebih kecil dengan hasil prediksi luas tanam sebesar 1.728.503 m2, tingkat produksi 9.609057 ton, dan produktivitas sebesar 57,145%
Application of Electrocoagulation for Wastewater Treatment of Tofu Production Ino Eben Lasroha L.Toruan; Sirajudin Haji Abdullah; Sukmawaty Sukmawaty; Diah Ajeng Setiawati
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.v1i1.6001

Abstract

This study aims to process tofu wastewater by using the electrocoagulation method and determine TSS, TDS, and pH efficiency. The Electrocoagulation system was designed based on an electrocoagulation general standard called batch systems. This study used voltage variations of 10, 20, and 30 volts and exposure time during 60, 120, and 180 minutes. The parameters observed were Total Suspended Solid (TSS), Total Dissolved Solid (TDS), and acidity (pH). This study used fresh tofu wastewater with temperature 40-50oC, with a volume of 2000 ml wastewater in one time of electrocoagulation process. The results showed that the designed electrocoagulation system could reduce TSS concentration until 72.2% and TDS 15.4% and increasing pH approaching the neutral value. However, the concentration value of TSS and TDS  was still above the quality standard. Initial characteristics of tofu wastewater with pH 4.6, TSS 2396.4 mg/L, and TDS 2975.1 mg/L after electrocoagulation process gained pH values 6.5, TSS 1072.7 mg/L, and TDS 2621.6 mg/L.
Model Arrhennius Untuk Memprediksi Penyimpanan Kelapa Parut Kering Guyup Mahardhian Dwi Putra; Diah Ajeng Setiawati
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.v1i1.5976

Abstract

Dry grated coconut is a processed coconut product that can be directly used by consumers without requiring further processing. In order for dried coconut products to last longer, a good storage process is needed. Storage is intended to maintain the value of the stored commodity. One of the models used for estimating shelf life is the Arrhenius model. Parameters in this study were water content, temperature and humidity. Temperature parameters consisted of three treatments,i.e 30°C, 35°C and 40°C. The results showed a decrease in water content data obtained by using the Arrhenius method at each storage temperature for a temperature of 30°C that is 103.9 days, a temperature of 35°C is 74 days and a temperature of 40oC is 60.5 day.

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