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INDONESIA
Jurnal Agrotek UMMat
Published by Universitas Muhammadiyah Mataram
ISSN : 23562234     EISSN : 26146541     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal AGROTEK UMMat merupakan salah satu jurnal yang dikelola oleh Fakultas Pertanian UM Mataram yang membawahi dua program studi yakni prodi Teknologi Hasil Pertanian(THP) dan Teknologi Pertanian , Jurnal ini sudah memiliki ISSN 2356-2234 (print) , ISSN 2614-6541 (online) , untuk jurnal online terbit pertama kali di bulan Februari 2018. Jurnal AGROTEK terbit dua kali setahun yakni bulan Februari dan Agustus. Redaksi menerima artikel baik dari kalangan praktisi maupun akademisi terkait bidang pertanian berupa hasil penelitian, studi kepustakaan maupun tulisan ilmiah terkait rekayasa pertanian,mesin-mesin pertanian,dll.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 9, No 4 (2022): October" : 5 Documents clear
Study on the preparation of GeoWEPP model input data for erosion prediction in Cikeruh-Citarik sub-watershed Amaru, Kharistya; Dwiratna, Sophia; Kendarto, Dwi Rustam; Shofia, Qorry
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.11107

Abstract

Cikeruh-Citarik sub-watershed is a part of the upstream zone of the Citarum watershed which is classified as a watershed with critical conditions in West Java. The change in land use as a side effect of the increasing population causes a degradation of the watershed. Land-use change in a watershed without considering any conservation rules leads to erosion, becoming a watershed criticality indicator. Erosion can be minimized by using a prediction model to predict the amount of erosion that might happen, for the result could help to decide which conservation action is needed in the watershed rehabilitation. GeoWEPP is one of the prediction models that is suitable for predicting the amount of erosion on a watershed scale. This research aims to study the preparation of the input data needed in the GeoWEPP model to predict the amount of erosion, especially in the Cikeruh-Citarik sub-watershed. The methodologies that were used in this research are literature study and field survey. According to the research results, the input data needed for GeoWEPP are DEM (Digital Elevation Model) data of the research area, climate database, soil type and soil physical properties database, land use and landcover data, and bridge files for soil, land cover data, and evapotranspiration calculation.
Analisis sidik jari herba pegagan (Centella asiatica (L.) Urb) di daerah Jawa Barat menggunakan metode spektrofotometri FTIR kombinasi dengan PCA Andriansyah, Ivan; Gumilar, Hasna Fadhilah; Yuliantini, Anne; Juanda, Dadang
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.10949

Abstract

Centella asiatica is a plant that has many benefits and is included in 50 types of medicinal plants that are often used as traditional medicine. Lack of quality control of traditional medicine can lead to a lot of fraud. A multi-component approach such as fingerprint patterns can be used for quality control of traditional medicinal raw materials. The purpose of this study was to determine the fingerprint pattern of Centella asiatica using the FTIR method combined with PCA. The method used is the measurement of the spectrum using FTIR at wave numbers 4000-650 cm-1 with a resolution of 4 cm-1. The fingerprint pattern of Centella asiatica in West Java obtained scores plot values of PC-1 against PC-2 81% (PC-1 45% and PC-2 36%) West Java Centella asiatica herbs cannot be in the same quadrant, Centella asiatica Sumedang area is in quadrant one, Bandung, Pangandaran and Sukabumi areas are in quadrant two and Bogor is in quadrant three. The validation of the PCA analysis showed a plot score of 73% (PC-1 44% and PC-2 29%) and the eigenvalues of PC-1 and PC-2 were 3.379 and 2.705, respectively. The FTIR method combined with PCA can classify each variabel from each plant by determining the number of selected main components. Obtained fingerprint profile of 96% ethanol extract of Centella asiatica herb in the area of West Java using FTIR obtained spectrum results from these 5 types of samples, combined with PCA. The fingerprint profile in the Score plot shows that Sumedang Centella asiatica has differences with the areas of Bandung, Bogor, Pangandaran, and Sukabumi.
Penilaian kinerja sistem irigasi berdasarkan pendekatan permen PUPR No.12/PRT/M/2015 dan metode MASSCOTE di daerah irigasi Reban Batu Sumbawa Barat Sukma, Dwi Mahenra; Hartana, Hartana; Setiawan, Ery
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.10801

Abstract

The Reban Batu irrigation area located in West Sumbawa Regency has experienced a decline in the performance of its irrigation system. Therefore, it is necessary to make efforts to improve the performance of the irrigation system by carrying out maintenance and rehabilitation, which is based on the results of the irrigation performance index assessment. The purpose of this study is to determine the irrigation system performance index in the Reban Batu irrigation area and the variables that affect irrigation performance. As for the irrigation system performance assessment, it can be based on the decree of PUPR No. 12/PRT/M/2015 and the MASSCOTE Method. The irrigation system performance assessment was carried out by direct surveys of the location and interviews with Water User Association (WUA) Farmers as beneficiaries and operational and maintenance (OM) officers as managers, resulting in a performance index based on the decree of PUPR 68.26% which was included in the category of underperforming and requiring attention. Meanwhile, based on the MASSCOTE method, the score is 2.69 or the level of service is in the poor category. Based on path analysis, the indicator variables of Irrigation Service (X1), WUA (X2), Human Resources of OM Officers  (X3), and the Modernization of OM (X4)together have a significant effect on the irrigation performance variable (Y) of 0.931 or 93.1%.
Aktivitas antioksidan ekstrak daun katuk (Breynia androgyna L.) dengan metode DPPH serta penetapan kadar fenolat dan flavonoid Budiana, Wempi; Nuryana, Ela Fitri; Suhardiman, Aris; Kusriani, Herni
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.10888

Abstract

Concerns about the side effects of synthetic antioxidants consumption have intrigued many researchers to find potential natural antioxidant resources. Most natural antioxidants can be found in plants in the form of phenolic compounds, especially simple phenolics and flavonoids. The aim of this research is to measure antioxidant activity, total phenol and total flavonoid content in katuk leaf extract (Breynia androgyna (L.). The stages of this research are including extraction using several types of solvents, identification of metabolites using thin layer chromatography (TLC), antioxidant activity assay using DPPH, determination of total phenolic content using Folin-Ciocalteu reagent, and determination of total flavonoid content using Chang's method. The results showed that the IC50 values of n-hexane, ethyl acetate, and ethanol extract of katuk leaves from Bandung were 107.52; 67.61; and 39.04 g/mL respectively, whilst for katuk leaves from Sukabumi were 102.39; 67.26; and 27.07 g/mL. Moreover, total phenolic content of n-hexane, ethyl acetate, and ethanol extracts of katuk leaves from Bandung were 12.68; 14.40; and 15.99 mg GAE/g sample respectively, meanwhile for katuk leaves from Sukabumi were 13.14; 14.10; and 16.06 mg GAE/g sample. Furthermore, total flavonoid content for n-hexane, ethyl acetate, and ethanol extract of katuk leaves from Bandung was 6.23; 8.65; and 10.73 mg QE/g sample respectively, while for katuk leaves from Sukabumi it was 6.20; 8.55; and 10.81 mg QE/g sample. In conclusion, the ethanol extract showed the highest antioxidant activity with very strong intensity. Furthermore, simplicia from Sukabumi had higher antioxidant activity than simplicia from Bandung.
Aktivitas antioksidan dengan metode cuprac dan penetapan kadar fenolat total pada ekstrak dan fraksi makroalga Eucheuma cottonii Kurnia, Dewi; Rohmah, Desita; Anggraeni, Vina Juliana
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.11116

Abstract

Antioxidants are compounds that can counteract free radicals. The macroalgae Euchema cottonii belongs to a type of seaweed from the Rhodophyta which is thought to have antioxidant activity. In this study, the antioxidant activity was tested using the CUPRAC method using spectrophotometry at 450 nm and the determination of total phenolic compounds in the extract and macroalgae fraction Eucheuma cottonii using the Folin Ciocalteu method. The extraction method was carried out using the maceration method with 70% ethanol and fractionation using ECC with n-hexane, ethyl acetate, and methanol-water (20% v/v). The results of TLC monitoring of Eucheuma cottonii showed the presence of flavonoid compounds, phenols, alkaloids, steroids, and triterpenoids. The results of the antioxidant activity test showed that the EC50 for the ethanol extract and the n-hexane, ethyl acetate, and methanol-water fractions were 89.11; 143.40; 100.02 and 90.22 g/ml respectively with EC50 vitamin C as a comparison of 6,86 g/ml. The results of the determination of the total phenolate content of the ethanol extract and the fractions of n- hexane, ethyl acetate, and methanol-water were 2.77; 1.96; 2.76; and 3.09 mg/GAE per 100 mg extract. The ethanol extract had a strong antioxidant activity with an EC50  89.11 g/ml and the highest total phenol content was in the methanol-water fraction of 3.09 mg/GAE per 100 mg extract. The results showed that the ethanolic extract of the macroalga Eucheuma cottonii has the potential as an alternative source of antioxidants.

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