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All Journal Natural Science: Journal of Science and Technology E-Jurnal Medika Udayana Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keuangan dan Perbankan TELKOMNIKA (Telecommunication Computing Electronics and Control) Agrointek Journal of Innovation and Applied Technology The Indonesian Green Technology Journal Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian Gravitasi Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Pengabdian UntukMu NegeRI Jurnal Kesehatan Komunitas Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PENDIDIKAN TAMBUSAI GEMA EKONOMI Jurnal Teknologi Pertanian Andalas Canrea Journal: Food Technology, Nutritions, and Culinary Journal Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Jurnal Kesehatan Tambusai DUNIA KEPERAWATAN: JURNAL KEPERAWATAN DAN KESEHATAN Indonesian Research Journal on Education Prosiding Seminar Nasional Teknik Lingkungan Kebumian SATUBUMI Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Jurnal Kesehatan Husada Gemilang Karya Kesehatan Siwalima Rona Teknik Pertanian
Sandra Sandra
Universitas Brawijaya
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Journal : Jurnal Teknologi Pertanian

 1 
The Effect of Extraction Duration and Concentration of Ethanol Solvent to the Extraction of Cocoa Beans (Theobroma cacao L) Antioxidant Diantika, Fitrah; Sutan, Sandra Malin; Yulianingsih, Rini
Jurnal Teknologi Pertanian Vol 15, No 3 (2014)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Antioxidant is a substance that can inhibit or slow down the oxidation process and is able to counteract the negative effects of oxidants in the body that are beneficial to health. Antioxidants can be found in vegetables, fruits, tea and chocolate. Antioxidants can be obtained by extraction. The purpose of this study was to assess the effect of long extraction and ethanol concentration on the extraction yield results, antioxidant activity and calculate the mass balance process. The materials used are cocoa (Theobroma cacao L). Research compiled using Randomized Block Design (RBD) with two factors: the long process of extraction by maceration namely (8,12,16,20 and 24 hours) and ethanol concentration of 70% and 80%. The results showed that the best treatment was obtained from the 20-hour long extraction and ethanol concentration of 80% for the antioxidant activity IC50 of 82 ppm and a yield of 8.63%.Keywords: Antioxidants, Extraction, Ethanol, Cocoa, Old Extraction.
Aplikasi Jaringan Syaraf Tiruan untuk Pendugaan Mutu Mangga Segar Secara Non-Destruktif Sandra, Sandra
Jurnal Teknologi Pertanian Vol 6, No 1 (2005)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The objective of this study was to estimate grade of mango with artificial neural network.  There are three grade of mango: grade I, grade II and grade III. Each grade consists of 40 samples. The Artificial Neural Network consists of three model; first model: 3 input, second model: 5 input and third model: 7 input.  Each of models consists of three outputs with 1000, 2500, and 5000 iteration, and 3, 5, and 7 hidden layers. The result of this study show that the accuracy of artificial neural network in grade of mango: (1) the first model 60% - 100%;  (2) the second model 90% and (3) the third model 90 %. The conclusion of this study is the artificial neural network can predict the grade of mango and the best model is the third model.   Keywords: Mango, grade, artificial neural network
The Effect of Seed Density on Nursery Media to Rice Transplanter Type Crown Indo Jarwo IHT 20-40 Performance. Prasetyo, Joko; Djoyowasito, Gunomo; Tembang, Lazuardy; Purnomo, Dwi; Sutan, Sandra Malin
Jurnal Teknologi Pertanian Vol 17, No 3 (2016)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Inovasi dan penggunaan teknologi rice transplanter berpeluang untuk mempercepat waktu tanam bibit padi serta mengatasi kelangkaan tenaga kerja tanam bibit padi. Pola tanam dengan produktifitas tinggi yaitu jajar legowo, untuk pola tersebut digunakan rice transplanter tipe indo jarwo. Kepadatan benih pada media persemian (dapok) yang optimal dibutuhkan untuk mendapatkan hasil panen yang baik, dan kesesuaian terhadap pengoperasian rice transplanter. Pada penelitian ini dilakukan pengamatan dan analisis pengaruh perbedaan kepadatan benih pada media persemaian dapok. Kepadatan yang digunakan yaitu 60 gram, 70 gram, dan 80 gram pada luas tiap dapok 1044 cm2. Percobaan menggunakan rancangan acak kelompok (RAK) dengan tiga perlakuan kepadatan benih pada media persemaian dan pengulangan sebanyak 3 kali. Keragaman perlakuan dianalisis menggunakan analisis varians pada taraf uji F 5% dan 1%. Perbedaan rata-rata perlakuan diuji mengunakan beda nyata terkecil (BNT) 5%. Hasil penelitian didapatkan kepadatan benih pada media persemaian berpengaruh terhadap jumlah pengeluaran bibit per lubang, namun tidak berpengaruh terhadap pertumbuhan persemaian padi, kerusakan bibit, jarak tanam, kecepatan penanaman, dan efisiensi.
STUDI VARIASI KADAR AIR TERHADAP SIFAT FISIK DAN MEKANIK LERAK (SAPINDUS RARAK) Hawa, La Choviya; Sutan, Sandra Malin; Turofiq, I’anna
Jurnal Teknologi Pertanian Vol 21, No 1 (2020)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (475.753 KB) | DOI: 10.21776/ub.jtp.2020.021.01.3

Abstract

ABSTRAKPerancangan alat untuk penanganan, pengeringan, pengolahan dan penyimpanan biji-bijian sangat memerlukan data sifat fisik dan mekanik. Penentuan sifat fisik dan mekanik lerak dilakukan pada rentang kadar air 11,36–26,27%. Panjang, lebar, dan tebal rata-rata pada kondisi kadar air 11,36% adalah 23,85 mm, 21,77 mm, dan 20,86 mm berturut-turut. Pada rentang kadar air 11,36–26.27%, hasil penelitian pada parameter ketiga dimensi aksial, diameter rata-rata menunjukkan peningkatan secara linear, luas permukaan dari 1578,17-1846,47 mm2, kebulatan mengalami penurunan dari 0,93 menjadi 0,92. Bulk density mengalami penurunan dari 0,69 gr/cm3 menjadi 0,61 gr/cm3 dan true density menunjukkan peningkatan dengan perubahan kadar air biji yaitu 0,82-1,00 gr/cm3. Porositas meningkat dari 14,65-36,68% dengan peningkatan kadar air pada rentang 11,36–26,27%. Nilai coeficient of static friction menunjukkan peningkatan dengan peningkatan kadar air dan secara berturut-turut rentang nilai dari yang terbesar hingga yang terkecil adalah stainless steal, papan triplek, kardus, plat besi dan kaca. Pemberian uji tekan lerak pada tingkat kadar air yang berbeda menunjukkan nilai tekan yang mengalami peningkatan pada panjang adalah 63,71 N hingga 97,12 N, sedangkan lebar dan tebal menunjukkan penurunan yaitu 154,19 N menjadi 67,67 N dan 130,30 N menjadi 71,88 N.Kata Kunci : Kadar Air; Lerak (Sapindus rarak); Sifat Fisik; Sifat Mekanik ABSTRACT The design of tools for handling, drying, processing and storing grains requires data on physical and mechanical properties. Determination of physical and mechanical properties of lerak carried out in the range of water content 11.365-26.271%. The average length, width, and thickness in the condition of 11.365% water content were 23.85 mm, 21.77 mm, and 20.86 mm respectively. In the range of water content of 11.36 -26,27%, the results of research on the parameters of the three axial dimensions, the average diameter showed an increase in linear, surface area from 1578.17-1846.47 mm2, roundness decreased from 0.93 to 0.92. Bulk density decreased from 0.69 gr/cm3 to 0.61 gr/cm3 and true density showed an increase with changes in seed moisture content from 0.82 gr/cm3 to 1.00 gr/cm3. Porosity increased from 14.65%-36.68% with an increase in water content in the range of 11.36-26.27%. The coefficient value of static friction os shows an increase with an increase in water content and successively ranges of values from the largest to the smallest are stainless steals, plywood boards, cardboard boxes, iron plates, and glass. The application of the compressive test of lerak at different levels of water content showed that the compressive value that increased in length was 63.71-97.12 N, while width and thickness showed a decrease of 154.19 to 67.67 N and 130.03 N to 71.88 N.Keywords : Moisture Content; Lerak (Sapindus rarak); Physical Properties Mechanical Properties
Co-Authors - Andasuryani A.A. Ketut Agung Cahyawan W Abdullah Abdullah Achadiah Rachmawati admin Agus Sugiyatno Ahmad Diyanal Arifin Akhmad Adi Sulianto, Akhmad Adi Alfauzi, Rendy Alin Rosyidatul Afidah SR Amirada Nur Laily Anang Lastriyanto Annisa u Choirun Annisa Utami Arif Arif Arif Wicaksono R.P Arimurti, Purnami Artono, Vicho Yugho Ary Musthofa Ahmad Ary Musthofa Ahmad Ary Mustofa Ahmad Asrul, Andi Moh. Azizun Maslachatul Mawla Azzahara, T. Aulya Badaruddin Badaruddin Bambang Dwi Argo Bambang Susilo Bayu Saputra Chalista, Igna Aquila Choirul Umam Choirunnisa, Nurul Istiqomah Cokorda Bagus Jaya Lesmana, Cokorda Bagus Jaya Darwin Kadarisman Deivy Amaliya Tipdani Dewi Maya Maharani Dharmaji Chowmas Dian Wahyuni Dimas Firmanda Al Riza Dwi Purnomo Dwi Wulandari Eka Kartika, Defi Fadillah Fadlillah Fausi, Ria Risti Febriari, Fitria Febriari, Fitria Fitrah Diantika Galla, Ribka Gunomo Djojowasito Gunomo Djoyowasito Gustiyana, Gustiyana Hamidah Nayati Utami Hendy Firmanto Herlambang Widarto, Marsa Hilmi, Miftahul Himawan, Harki Indah Mustika Sakti Indah Purnamasari, Desi Rahmawati Indra, Rani Lisa Irman Mahbudi Isya Al Hanif Jeshica, Jeshica johan, dwiyumelia Joko Prasetyo Joko Prasetyo Juliana Puspika Junaedy, Mohamad Kartika, Defi Eka Khoiril Anam, Khoiril Kreative Y.R, Rizka Kumalasari, Anisa Indah La Choviya Hawa Lama, Yuyu Lamrens Lazuardy Tembang, Lazuardy Luh Nyoman Alit Aryani, Luh Nyoman Alit Manawu, Nurafni Mandala, Nanda Febriani Maskur Maskur Miftahul Hilmi Mitra Mitra Mochamad Bagus Hermanto Moh Dahlan Th Musa Muchnuria Rachmawati Muditawira, Haoriadi Muhamad Amar Nadhif Muhamad ikhsanudin Muhammad Ardiansyah Muhammad Rusydi H. Musthofa Lutfi Mustofa Lutfi Muzaki, M. Amin Nadia Nadia Nauri, Afid Rahman Ni Nyoman Padang Cakra Binaraesa Nova, Diftiya Novita Yanti, R. Novrianti, Melda Nurarafah, Nurarafah Nurfauzi, Sobirin Nurluthfi Putra Panggoe, Hartito Pipit Elok Nikmatus Sholikah Putri Suci Asriani Rafmin, Fatmawati Rasyid, Fathana Rasyid, T. Abdur Rasyid, Tengku Abdur Retno Damayanti Rhamadan, Ilham Rida Jelita Rinah, Rinah Rini Yulianingsih Rino Ardianto Riyanto Riyanto Rohani Ruslan Wirosoedarmo Rusli M., Muhammad Rustan Efendi Sahabudin Sahabudin, Sahabudin Saiful Hosni Sholikah, Pipit Elok Nikmatus Silvi Astri Cahyani Sitti Rugayya Soro, Bernald Marco Sumardi Sumardi Sung Suk Kim Suryaningsih, Ninik Daryuni Susilawati, Tris Baiq Turofiq, I’anna Vincentia Veni Vera Wahyunanto Agung Nugroho Wardani, Ida Aju Kusuma Wengkau, Mario Putra Wibowo, Sasongko Aji Widhiantari, Ida Ayu Witman Rasyid, Witman Yadi Sutikno Yulandari, Nur Yusra Yusri Yusri Yusuf Hendrawan Yusuf Wibisono Yusuf, Magfira Zakia Zakia Zaqlul Iqbal