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Pengolahan Pasta Laor (Eunice viridis) dengan Berbagai Konsentrasi Garam Tampubolon, Komariah; Purnomo, Djoko; Sangadji, Masbantar
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 10, No 1 (2007): Buletin Teknologi Hasil Perikanan
Publisher : Departement of Aquatic Product Technology

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Abstract

Di wilayah Maluku, cacing laut atau laor (Eunice viridis) oleh masyarakat diolah menjadi makanan dengan proses penggaraman dan dilanjutkan dengan penjemuran. Laor setelah ditangkap, diberi garam dan dijemur selama 3 hari. Laor yang telah dijemur tersebut akan berubah bentuknya seperti saos atau pasta dengan warna hijau kecoklatan dan mengkilat. Penelitian ini bertujuan untuk membuat pasta laor yang bermutu dan disukai dengan berbagai konsentrasi garam, yaitu 5, 10 dan 15 %. Setelah penggaraman laor dijemur selama 3 hari, kemudian disimpan pada suhu kamar selama 6 minggu. Untuk menilai mutu pasta laor selama penyimpanan, maka dilakukan analisa kandungan kimia, meliputi kadar air, lemak, protein, kadar abu, TVB, pH, TPC dan uji organoleptik meliputi warna, bau, rasa dan penampakan yang dilakukan setiap minggu sejak minggu ke 0. Penelitian pendahuluan bertujuan untuk mengetahui kandungan kimia laor segar. Berdasarkan hasil penelitian diperoleh komposisi kimia laor segar sebagai berikut: kadar air 65,51 %; abu 4,43 %; protein 13,37 %; lemak 0,32 %; pH 6,50; TVB 7,84 mg N/100 g dan TPC 2,25x103 koloni/g, yang berarti dalam keadaan sangat segar. Selanjutnya pada penelitian utama, penggaraman 15 % merupakan perlakuan terbaik mutunya selama penyimpanan dengan kadar : lemak 1,54 %; protein 14,81 %; air 56,05 %; abu 21,78 %; pH 6,11; TVB 62,05 mg N/ 100 g dan TPC 3,69x105 koloni/g, sedangkan perlakuan 5 dan 10 %, kandungan proteinnya adalah 9,66% dan 13,65 %.Kata kunci : laor, pasta
OPTIMALISASI KULTUR JARINGAN BAWANG PUTIH DENGAN VARIASI KONSENTRASI EKSTRAK RAGI Putri, Ardyana Hamidani; Haryanto, Eddy Tri; Purnomo, Djoko
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v30i1.11844

Abstract

Garlic potential in Indonesia to be low because the tubers as planting materials have been infected virus. Tissue culture generates plant virus free so the tuber production as healthy planting material. The role of media to the succes of tissue culture is very high. Although the available tissue culture media has nutrients contain, but for the growth of onion plantlets required additional nutrients such as yeast extract. Yeast extract contained enzyme, amino acids and vitamin needed by plant growth. The research aimed to study the effect of yeast extract on garlic plantlet growth in tissue culture. The use of yeast extract in tissue culture with MS medium for garlic explants does not increase the growth plantlet. 
RADIATION FOR GARLIC PLANLETS ON ACLIMATIZATION PHASE Andini, Dara Cipta; Haryanto, Eddy Tri; Purnomo, Djoko
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v30i1.11842

Abstract

Garlic is one of the important horticultural crops in Indonesia so that the needs increas from year to year. In Indonesia plant material (seed) for cultivating garlic always uses comsumption bulb. The impact of that technique in a long time that the yield gradually decrease by virus infection from preliminary crop. The aim of the research was to find out of seed plant material which virus free by in vitro propagation technology. Acclimatitation is one of succesfuly determination in invitro propagation. Research by the experiment was to study the ability of New Tawangmangu, Gunung Kidul, and Bali garlic varieties on acclimatitation in several light intensity (by paranet shading). The results showed that the totipotency of the garlic varieties was high but in acclimatitation by the shading technique just survived two weeks only. The failure of acclimatitation was range of temperature 12-37°C. 
PENGGUNAAN EKSTRAK TEH DAN PUPUK KASCING PADA BUDIDAYA CAISIM (Brassica juncea L.) Purnomo, Djoko; Sakya, Amalia T; Fahrudin, Fuat
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 6, No 2 (2009)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v6i2.53

Abstract

The aim of the research is to know the effect of tea extract and vermicompost on yield and growth of caisim (Brassica juncea L.). The research was conducted in February-March 2009 in Screen House in Agriculture Faculty Sebelas Maret University at 96 meter above sea level. The research was arranged on factorial design based on Complete Randomize Design. The treatment of the research was tea extract with concentration 0, 10, 20, and 30 g/L and dosage vermicompost 0, 4, 8 and 12 ton/acre (equal 0, 10, 20 and 30 g/crop). Each treatment was repeated 3 times, and each of them restating 2 crop unit. Data was analysized by analysis of variants with test of 0.05, if there was significant continued with test of Duncan 0.05. Research variable were plant height, leaf number, fresh and shoot biomass weight, fresh and biomass root weight, root volume, chlorophyll content, leaf area and root shoot ratio. Result of research show there is interaction between tea extract and vermicompost on shoot root ratio. Shoot root ratio increase by increasing tea extract concentration on caisim without vermicompost and with vermicompost 8 ton/acre. Application tea extract do not give significantly effect on growth and yield of caisim. Dose vermicompost 8 ton/acre gave the highest of average fresh weight and leaf number. Keywords: caisim, tea extract, vermicompost
PENGEMBANGAN BAHAN AJAR MATEMATIKA SEBAGAI SARANA PENGEMBANGAN KREATIVITAS BERPIKIR Purnomo, Djoko
AKSIOMA : Jurnal Matematika dan Pendidikan Matematika Vol 2, No 1/Maret (2011): AKSIOMA
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/aks.v2i1/Maret.43

Abstract

Keberhasilan pembelajaran, dipengaruhi banyak faktor, antara lain model pembelajaran, strategi pembelajaran, media pembelajaran, dan juga bahan ajar atau materi pelajaran. Bahan ajar yang disusun mempunyai prisip relevansi, konsistensi dan kecukupan, sehingga masih memberi ruang siswa untuk mengembangkan penalaranya. Menentukan cakupan atau ruang lingkup materi pembelajaran, perlu memperhatikan jenis materi yang akan disampaikan, berupa aspek koqnitif ( fakta, konsep, prinsip, prosedur), atau aspek afektif, ataukah aspek psikomotorik. Kata kunci : Bahan ajar, media pembelajaran, kreativitas berpikir
HUBUNGAN KEMIRINGAN LERENG DAN PENGGUNAAN LAHAN DI SISI BARAT GUNUNG LAWU Supriyono, Supriyono; Purnomo, Djoko; Budiastuti, MTH Sri
Caraka Tani: Journal of Sustainable Agriculture Vol 24, No 2 (2009): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v24i2.14044

Abstract

Purpose shifting of forest dominated with tress for becoming agriculture land of annual cropping can not be implemented in arbitrary slope declivity. The slope declivity above 30% or even 45% obviously needs to be maintained for perrenials plant. Therefore, it is necessary to know about the plant genre existing in many slope levels in western side of Lawu Mountain in order to give recommendation for the society and local government in creating rule directed to the forest and land preservation.The results of the survey show that: 1) the decrease of a place height from about 1500 m usl to 100 m usl and 700 m usl can change the vegetation community of perrenial plant to become more various, 2) the vegetation in the height of 1500 m is dominated by pine then Ceiba sp. and high-land vegetables, 3) the vegetation in the height of about 1000 m usl  is dominated by clove, then followed by several wooden plant and tropical fruit plant, 4) in the lower height that is 700 m usl the vegetation is dominated by bamboo, jackfruit, coconut, Tectona sp., and Swietenia sp., and 5) the use of tilt land for cultivating annual plant happens at the height of 1500 m usl, the vegetation is dominated by high-land vegetables.
PENGGUNAAN PUPUK CAIR EKSTRAK LIMBAH RUMAH TANGGA DALAM BUDIDAYA ORGANIK KEDELAI PADA SISTEM AGROFORESTRI Mardhikasari, Siti; Purnomo, Djoko; Sulistyo, Trijono Djoko
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v30i1.11830

Abstract

Organic cultivation in egroforestry system by biofertilizer potentialy conducted for soybean.  Soybean cultivation in agroforestry system there are several limitations but it have to effort since the area of ideal land decreasing year by year.  The aim of the research by experiment method is increasing yield of soybean by organic cultivation in agrofrestry system either quality or quantity.  The experiment design is randomized block design (RBD) with two factor trearments.  The first factor are kinds of variety (Grobogan and Local) as mainplot and the second one are biofertilizer duration (no biofertilizer as control, 4, 5, 6, 7 weeks applies ones a week).  So there are 10 combination treatments and replicated three times for each of them.
KAJIAN EKOLOGI, KEANEKARAGAMAN JENIS DAN POTENSI POHON DI PEKARANGAN (STUDI KASUS DI DESA KEBAK, JUMANTONO, KARANGANYAR) Susanto, Arief; Muliawati, Endang Setya; Purnomo, Djoko
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v30i1.11846

Abstract

Homegarden is one alternative that multipurpose agricultural land to cope with reduced land resources. This study aimed to determine the characteristics of the ecology, species diversity and potential of trees in the homegarden that is useful in further development. The research had been conducted in June to August 2011 in the Kebak Village, Jumantono District, Karanganyar Regency with a altitude of 330 meters above sea level and soil type alvisol. This experiment used survey methods with observation unit is divided into three categories based on the size of the homegarden: narrow (<700 m2), medium (700-900 m2) and large (> 900 m2). Observed variables include three aspects: biological variables (type and number of trees, tree height, trunk diameter and canopy area), physical variables (analysis of soil, microclimate homegarden, macroclimate and physiographic land) and analysis of the vegetation (density, frequency, dominance, relative density, relative frequency, relative dominance, importance value index and the index of species diversity). Kebak village had been 40 species of trees are divided into fruit trees, timber, vegetable producers, growers and others. The results showed indicate that the type of fruit tree had the largest of 20 species by the reached 142 tree to rambutan tree. Spacious homegarden area had the highest type and number of trees as well as the highest species diversity index. 
BUDIDAYA CABAI RAWIT SISTEM HIDROPONIK SUBSTRAT DENGAN VARIASI MEDIA DAN NUTRISI Purnomo, Djoko; Harjoko, Dwi; Sulistyo, Trijono Djoko
Caraka Tani: Journal of Sustainable Agriculture Vol 31, No 2 (2016): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v31i2.11996

Abstract

The study aimed to determine which substrate and nutrition that gives the best result in improving growth and yield of Capsicum frutescens. The study design using CRD (completely randomized design) with two factors, namely substrates (6 levels: charcoal husks, fractional tiles, fractional bricks, arenga fiber, beach sand, husk steamed) and nutrition (2 levels: standards, standards with NPK). The study was conducted October 2015 until March 2016 in screen house Faculty of Agriculture, Sebelas Maret University. Data were analyzed using analysis of variance and if significant difference continued with DMRT (Duncan Multiple Range Test) level of 5%. The results showed that the kinds of substrates significantly affect all variables of Capsicum frutescens (plant height, leaf number, branch number, total interest, diameter trunk, root length, root volume, fresh weight of plants, plant dry weight, fruit weight and number of fruit), and the addition of NPK nutrition significantly affect variable leaf number, branch number, and fresh weight of plants. 
EVALUASI SIFAT KIMIA TANAH DAN HASIL KEDELAI PADA SISTEM AGROFORESTRI BERBASIS POHON JATI Prasetiyo, Deni; Purnomo, Djoko; Supriyadi, Supriyadi
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v30i1.11838

Abstract

Soybean is one of the most important food commodities in Indonesia and also it has high value. The needs continue to increase each year, but not offset by increased production become an issue that must be addressed. One attempt to increase soybean production is through the cultivation in agroforestry systems through improving the quality of soil fertility. This research aims to study the effect of various doses of litter teak and NPK fertilizer on chemical soil fertility and the potential of soybeans yield in agroforestry systems based teak crops. Experiments using a Randomized Complete Block Design (RCBD) with two factors, namely litter teak doses (0 ton ha-1, 2.500 ton ha-1, 5.000 ton ha-1, 7.500 ton ha-1) and doses of NPK fertilizer (60-60-60 and 60-120-60) on Grobogan soybean varieties. The variables measured were pH, organic matter content, N-total soil, cation exchange capacity (CEC), plant tissue of N, P-total soil, and component production. Data analysis using analysis of variance F-test based on the level of 5% and significantly different variables followed by Tukey’s method level of 5%. The results showed that combination treatment with various doses of teak litter NPK fertilizers can increase total nitrogen content of the soil with the highest yield of 1.69% on S1D2 treatment, but to organic matter, CEC, pH, and total soil P not significant effect. Component of soybean varieties of the highest Grobogan of 0.83 tons ha-1 in the treatment S1D1. The result was still below the average of the national soybean production.