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Uji Aktivitas Antoksidan dan Senyawa Fitokimia pada Tanaman Terung Pokak (Solanum torvum) Nunuk Helilusiatiningsih
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 1 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i01.p01

Pokak eggplant fruit in Indonesia was quite abundant as a wild plant. The research aimed to test antioxidant activity and phytochemical compounds of Pokak eggplant plant. The research method used quantitative analysis: DPPH and phytochemical moisture content. The results are fresh fruit research results: water content 82.2%, ash content 1.64%, protein 9.77%, fat 4.63%, carbohydrates 4.54%, Vitamin C 3.78%, phenol 33.95 mg/g, Tannins 0.94 mg/g, Flavonoids 1,38 mg/g, DPPH 85.58%. Seeds: water content 39.90%, ash 1.16%, protein 6.22%, fat 0.48%, carbohydrates 52.97%, Vitamin C 2.46%, phenol 21.84 mg/g, Tannins 0.52 mg/g, Flavonoids 2.32 mg/g, DPPH 86.88%. Dry stem: water content 6.88%, ash content 7.92%, protein 14.28%, fat 6.90%, carbohydrate 64.02%, Vitamin C 0.13%, phenol 92.14 mg/g, Tannin 1.61 mg/g, Flavonoids 8.04 mg/g, DPPH 78.47%. Fruit skin: water content 58.16%, ash content 0.26%, protein 5.74%, fat 0.32%, carbohydrates 35.29%, Vitamin C 1.34%, phenol 25.53 mg/g, Tannins 0.53 mg/g, Flavonoids 2.76 mg, DPPH 85.49%. Fresh Leaves: water content 58.16%, ash content 0.26%, protein 5.74%, fat 0.32%, carbohydrates 35.29%, Vitamin C 1.34%, phenol 25.53 mg/g, Tannins 0.53 mg/g, Flavonoids 2.76 mg/g, DPPH 85.49%. Dried Leaves: water content 7.52%, ash content 7.52%, protein 25.84%, fat 3.67%, carbohydrates 50.52%, Vitamin C 1.31%, phenol 12.87 mg/g, Tannins 0.20 mg/g, Flavonoids 1.76 mg/g, DPPH 64.50%.

Aktivitas Antimikroba Kefir Susu Sapi yang Diinkubasi pada Tempurung Kelapa Hijau Muda terhadap Staphylococcus aureus dan Escherichia coli Muna Yuniarti; Sri Anggreni Lindawati; I Gusti Agung Arta Putra
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p01

This study aims to determine the antimicrobial activity of cow's milk kefir incubated a light green coconut shell against Staphylococcus aureus and Escherichia coli. This study used a completely randomized design (CRD) with three treatments and five replications. The three treatments were: incubated cow's milk kefir in a jar as a control (P0), incubated cow's milk kefir in a light green coconut shell without meat (P1), cow's milk kefir incubated in a light green coconut shell with meat (P2). The variables observed were kefir antimicrobial activity against Staphylococcus aureus ATCC 3351, Escherichia coli ATCC 8739 and the pH value and total lactic acid bacteria. The results showed that the antimicrobial activity of kefir against Staphylococcus aureus ATCC 3351 and Escherichia coli ATCC 8739 in all treatments (P2, P1 and P0) showed no significant difference (P> 0.05) with clear zone diameters of 10.50 - 11.30 mm and 9.70 mm. - 11.03 mm, followed by the pH value in treatment P2 (3.95), P1 (4.11), and P0 (4.38) were statistically significantly different (P <0.05), and the total lactic acid bacteria at P2, P1 and P0, respectively 14.3 x 106 CFU/g; 13.5 x 106 CFU / g and 8.1 x 106 CFU / g were not significantly different (P> 0.05). The conclusion of this study is that incubated cow's milk kefir on light green coconut shells has antimicrobial activity against Staphylococcus aureus ATCC 3351 and Escherichia coli ATCC 8739.

Analisis Protein, Tekstur dan Rasa Ice Cream Berbahan Dasar Rumput Laut Merah (Kappaphycus alvarezii) Andreas Lawe Belang; James Ngginak; Sonya Titin Nge
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p06

Rumput laut merupakan kelompok tumbuhan tingkat rendah yang tergolong dalam ganggang (algae). Berbagai macan species rumput laut berpeluang untuk diproduksi menjadi ice cream. Ice cream merupakan produk pangan beku yang sangat populer di seluruh dunia dan sangat digemari oleh anak-anak maupun orang dewasa yang tentunya memiliki kandungan nutrisi tinggi. Penelitian ini bertujuan untuk untuk mengetahui kadar protein, tekstur dan rasa ice cream berbahan dasar rumput laut Kappaphycus alvarezii. Metode penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan 4 kali ulangan. Analisis data menggunakan one way Anova. Formulasi perlakuan yang digunakan P1 (15% Kappaphycus alvarezii ), P2 (30% Kappaphycus alvarezii ) dan P3 (45% Kappaphycus alvarezii ). Hasil penelitian terbukti Kappaphycus alvarezii dapat dijadikan sebagai bahan baku alternatif pembuatan ice cream. Berdasarkan analisis one way anova dan uji lanjut DMRT menunjukkan terdapat pengaruh yang signifikan pada kandungan kadar protein P1 yaitu sebesar 0.12792 %. Sedangkan hasil uji organoleptik terkait parameter tekstur ice cream berdasarkan analisis one way anova menunjukkan tekstur tidak terdapat pengaruh yang signifikan sehingga tidak dilanjutkan pada uji DMRT dengan nilai P2 sebesar 4,36 %. Sedangkan uji organoleptik untuk aspek rasa berdasarkan analisis one way anova menunjukkan tidak terdapat pengaruh yang signifikan sehingga tidak dilanjutkan pada uji DMRT dengan nilai P1 sebesar 4,45 %.

Identifikasi Unsur Hara Sulfur pada Sistem Irigasi Primer di Tanah Sawah Wilayah Bendungan Arca Kiri, Kabupaten Banyumas Leony Agustine; Amanullah Thaariqa Tri Wibowo; Begananda Begananda
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p04

This study aims to determine1) the amount of nutrient content of Sulphur in a paddy field in the irrigation channel of Arca Kirit dam in Banyumas Regency, 2) nutrient distribution of Sulphur in paddy field in the irrigation channel of Arca Kiri dam in Banyumas Regency, and 3) recommendations of Sulphur fertilizers in paddy field in the irrigation channel of Arca Kiri dam in Banyumas Regency. The research was conducted in paddy field, in the irrigation channel of Arca Kiri dam in Banyumas Regency, then continued with analysis of the soil in the Institute of Determining Technology of Agriculture (BPTP), Yogyakarta. The research carried out by the determination of sample points based on a purposive random sampling be based Land Homogenous Unit (SLH). Land Homogenous Unit arranged by overlaying the Administrative Map, Slope Map, and Soil Type Map. The number of samples is 8, which is located in 5 villages. The variables were observed namely the nutrient content of Sulphur, EC, pH (H2O), and BS of land. The results showed that the nutrient content of Sulphur from both SLH relatively high, there were SLH A1 reach 86.20 ppm and SLH A2 reach 85.33 ppm. Sulphur fertilizer recommendations for SLH A1 is 10.64 kg S/ha and SLH A2 is 14.60 kg S/ha.

Pemanfaatan Kacang Merah dan Ubi Jalar Putih sebagai Bahan Bolu Kukus Novia Agustina; Shanti Fitriani
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p03

Bolu merupakan salah satu makanan yang sangat disukai oleh masyarakat Indonesia. Bolu kukus memiliki rasa yang enak, dan memiliki tekstur yang lembut, rasanya yang manis dan bentuknya yang beragam. Berkaitan dengan hal tersebut, bolu kukus pada penelitian ini dibuat dari tepung kacang merah dan tepung ubi jalar putih. Tujuan penelitian ini adalah untuk mendapatkan formulasi terbaik tepung kacang merah dan tepung ubi jalar putih terhadap mutu bolu kukus yang dihasilkan. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan lima perlakuan dan tiga ulangan. Perlakuan pada penelitian ini adalah perbedaan rasio tepung kacang merah dan tepung ubi jalar putih yaitu KUJ1 (80:20), KUJ2 (70:30), KUJ3 (60:40), KUJ4 (50:50), dan KUJ5 (40:60). Data yang diperoleh kemudian dianalisis secara statistik menggunakan analysis of variance (ANOVA) dan diikuti dengan uji duncan’s multiple range test (DMRT) pada taraf 5%. Hasil penelitian menunjukkan bahwa perbedaan rasio tepung kacang merah dan tepung ubi jalar putih berpengaruh nyata terhadap analisis kimia dan tidak berpengaruh nyata terhadap uji sensori. Perlakuan terbaik dari parameter yang telah diamati adalah perlakuan KUJ1 yaitu memiliki kadar air 33,86%, kadar abu 1,19%, kadar protein 9,74%, kadar lemak 1,09%, kadar karbohidrat 54,13%, dan kadar serat kasar 12,34% dengan deskripsi warna putih kecoklatan, beraroma diantara kacang merah dan ubi jalar, berasa diantara kacang merah dan ubi jalar serta memiliki tekstur yang lembut, dan disukai oleh panelis.

Efektifitas Fermentor Fuzzy Digital Terhadap Kualitas Mutu Biji Kopi Nurhaya Kusmiah; Abdul Waris; Ishak Manggabarani
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p05

Kopi merupakan salah satu komoditi hasil perkebunan yang potensial di Indonesia, saat ini pengolahan kopi telah banyak dilakukan untuk menciptakan kopi olahan dengan aroma dan rasa yang khas melalui proses fermentasi, sehingga dapat meningkatkan harga jual kopi di pasaran. Penelitian ini bertujuan untuk menguji sejauh mana rancangan fermentor dengan penerapan fuzzy digital mampu memberikan proses fermentasi sempurna sehingga dapat meningkatkan mutu biji kopi atau kopi bubuk. Metode yang digunakan yakni RAK (Rancang Acak Lengkap) untuk melihat apakah fermentasi dengan menggunakan fermentor dapat meningkatkan mutu. Berdasarkan penelitian yang dilakukan, hasil yang diperoleh menunjukkan bahwa kinerja fermentor sangat baik, ditandai dengan tidak terjadi overshoot, offset. Pengujian mutu hasil fermentasi biji kopi menunjukkan bahwa pulp mudah lepas, warna biji lebih gelap yaitu notasi L* 31,63, total asam sekitar 20%, dan begitupun dengan pH produk kopi tergolong aman untuk dikonsumsi yaitu pH 6.

Pengaruh Jenis Mulsa terhadap Pertumbuhan dan Produksi Kemangi (Ocimum basillicum) Made Ari Giri; Bambang Priyanto; Joko Gagung
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p02

Basil plants (Ocimum basillicum) is medicinal plants, can produce essential oils, and consume as a food ingredient. However, the production of Basil plants is still low due to the growth of weeds that is not easy to be controlled, causing market demand to still not be fulfilled. One of the measures to increase the yield is to suppress weed growth using mulch on cultivation. The purpose of this study was to determine the effect various types of mulch on growth and production of Basil plants. The research design used was a Randomized Block Design (RAK) with 4 types of treatment which was repeated 6 times. Observed parameters were plant height, number of leaves, number of branches, plant fresh weight, and also environmental factors, namely soil moisture and soil pH. Analysis of Variance applied to calculate the effect of treatments and DMRT test at ? =5% was applied to determine the significancy of treatment. The results showed that rice straw mulch had a significant effect on plant height, number of leaves, number of branches, fresh weight and soil pH.

Optimasi Suhu dan Waktu Proses Delignifikasi pada Isolasi Selulosa dari Tongkol Jagung Dewi Sartika; Amanda Patappari Firmansyah
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p10

This study aims to optimize the temperature and time of the delignification process to isolate cellulose from corn cobs. The research was carried out in stages, namely preparing corn cob powder samples and the delignification process. Statistical regression modeling and optimization of the temperature and time of the delignification process used the response surface (RSM) methodology. Central Composite Design (CCD) was used for experimental design and analysis of the effect of temperature and time of the delignification process on lignin, cellulose, hemicellulose, and fiber yields. The optimum process conditions were determined using the desirability method. The analysis of the diversity of the quadratic polynomial model shows that the temperature and time of the deligninification process significantly affect changes in the characteristics of lignin, cellulose, hemicellulose, and fiber yields. The optimal condition of the corncob fiber delignification process was obtained at a temperature of 100.38? for 79.17 minutes. It produced the characteristics of delignified fiber with lignin, cellulose, hemicellulose, and yields of 6.47%, 73.73%, 5, respectively. 39% and 57.76% w/w. The optimization model is valid with a desirability value of 0.71. Thus, the temperature and time optimization model of the delignification process can be applied in real conditions to produce delignified corncob fiber with optimum characteristics.

Karakteristik Sawi Hijau (Brassica rapa var parachinensis) yang Dihasilkan dari Aplikasi Bakteri Pemacu Pertumbuhan I Gusti Ayu Lani Triani; Ida Bagus Wayan Gunam
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p08

This study tries to use the roots of bamboo plants that grow in Bali as Plant Growth Promoting Rhizobacteria and applied to vegetable plants to see the physical characteristics of these vegetables. This study aims to determine the physical characteristics of greens mustard produced by using the application of growth-promoting bacteria derived from the roots of bamboo (Bambusa maculata). The characteristics of the greens mustard were compared with the use of commercial PGPR (products from Central Java farmers) and without the use of growth-promoting bacteria. Based on the results of the research on the physical characteristics of greens mustard (Brassica rapa var parachinensis) the results of the application of growth-promoting bacteria from bamboo roots obtained plant heights ranging from 39 cm, weight 34 – 44 g, number of leaves 9 – 12 pieces, texture 22.18 – 30.31 kg .m/sec2, brightness level 42.13 – 47.13 and total dissolved solids 4.4 – 5.1% brix, slightly different from the treatment without PGPR and commercial PGPR. For this reason, it is necessary to continue cultivation with growth-promoting bacteria derived from natural ingredients that grow in Bali, this is an effort towards environmentally friendly cultivation so that it is expected to get quality results and are safe for consumption.

Pengaruh Pengaruh Konsentrasi Polivinil Alkohol dan Lama Pengadukan Pada Proses Pemanasan terhadap Karakteristik Komposit Biotermoplastik Maizena dan Glukomanan Sando F. Limbong; Bambang Admadi Harsojuwono; Amna Hartiati
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p05

This study aims to determine the effect of the concentration of polyvinyl alcohol (PVA) and the stirring time on the heating process and their interactions on the characteristics of the cornstarch-glucomannan biothermoplastic composite and determine the concentration of polyvinyl alcohol (PVA) and the duration of stirring the heating process which produces the best biothermoplastic composite. This study used a factorial randomized experimental group design. The first factor is the concentration of polyvinyl alcohol which consists of 4 levels, namely 3,5%, 4%, 4,5%, and 5% (w/w). The second factor is the stirring time on the heating process which consists of 4 levels, namely 3, 4, 5, and 6 minutes. The variables observed in this study were tensile strength, elongation at break, elasticity, swelling, water vapor transmission rate, biodegradation, and functional group. The resulting data was analyzed and continued with Duncan's Multiple Range Test. The results showed that the concentration of polyvinyl alcohol (PVA) had a very significant effect on tensile strength, elongation at break, and elasticity, but had no significant effect on swelling, water vapor transmission rate, and biodegradation. While the stirring time on the heating process has a very significant effect on tensile strength, and elasticity, but has no significant effect on elongation at break, swelling, water vapor transmission rate, and biodegradation of biothermoplastic maizena-glucomannan. The interaction between treatments has no significant effect on the characteristics of biothermoplastic. The best biothermoplastic composites were composites with a polyvinyl alcohol concentration of 5% and a stirring time of 6 minutes with a tensile strength of 29,47 MPa, elongation at break of 10,99%, elasticity of 268,21 MPa, swelling of 65,02%, water vapor transmission rate of 1,05 g/m2.hour, and biodegradation rate for 6 days. The results of functional group analysis showed the presence of functional groups hydroxyl (O-H), carbonyl (C=O), C=C aromatic, carboxyl (C-O), and hydrocarbon -(CH2)n.

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Contact Name
-

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Journal Mail Official
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-

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Kota denpasar,

Bali

INDONESIA