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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teknologi Hasil Pertanian PRIMA: Journal of Community Empowering and Services
Rofandi Hartanto
Jurusan Teknik Pertanian UNILA
Agriculture, Biological Sciences & Forestry Engineering Environmental Science

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DESIGN AND PERFORMANCE TEST OF JOBS TEARS (COIX LACRYMA JOBI L.) THRESHER MACHINE SOLID CYLINDER ROLL TYPE Saputra, Ady; Hartanto, Rofandi; ., Warji
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 3 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.298 KB)

Abstract

Jobs tears (Coix Lacryma-jobi L.) was a cereal crop that used as high nutrient food and animal feed ingredients. The purpose of this research was to design and test the performance of jobs tears seeds thresher machine of solid cylinder roll type. The machine parts consisted of machines frame, threshing cylinder, jobs tears seeds container, gear transmission, gearbox, and electric motors. Design process of its consisted of structural design and functional design to managed all parts of threshers. This machine was driven by an electric motor. The power and rotational speed of electric motor was 1 HP (1.400) rpm that was transmitted to the gearbox by V-belt and pulley. Speed of electric motor rotation was modified from1,440 rpm to 30 rpm, 38 rpm and 50 rpm by a gearbox with 1:30 ratio. gearbox rotation was transmitted to threshing tool (solid cylinder roll).  Rotation of this two solid cylinders roll  had a clearance of 6,5 mm that suppressed jobs tears seeds, so the seeds could be separated from the stems.  This research resulted the jobs tears seeds thresher machine of solid cylinder roll type. The optimum rotation speed of cylinder was 50 rpm, with loss percentage 79.68% and percentage of good threshed jobs tears seeds 88.57%. This machine had a work capacity of 50,45 kg jobs tears seeds per hour. Keywords: Jobs tears, Thresher of solid cylinder roll type.
PENGARUH PENGGUNAAN ASAM ASETAT DAN EDIBLE COATING EKSTRAK BAWANG PUTIH TERHADAP KUALITAS FILLET IKAN NILA MERAH (Oreochromis niloticus) SELAMA PENYIMPANAN SUHU DINGIN Al Hakim, Muhammad Luqman; Hartanto, Rofandi; Nurhartadi, Edhi
Jurnal Teknologi Hasil Pertanian Vol 9, No 1 (2016)
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.299 KB) | DOI: 10.20961/jthp.v9i2.12850

Abstract

Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan ekstrak bawang putih pada edible coating dan penggunaan pengawet asam asetat terhadap kualitas dan umur simpan fillet ikan nila merah selama penyimpanan suhu dingin dan mengetahui konsentrasi ekstrak bawang putih pada edible coating dan konsentrasi asam asetat yang terbaik. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan dua faktor yaitu variasi konsentrasi asam asetat dan ekstrak bawang putih. Penelitian ini terbagi menjadi dua bagian yaitu penentuan konsentrasi ekstrak bawang putih yang ditambahkan pada edible coating dan pengujian kesegaran daging ikan dengan uji TPC (Total Plate Count), pH, kadar air, TBA (Thiobarbituric Acid), TVB (Total Volatile Base), dan warna (chromameter) selama 12 hari yang diuji pada hari ke-0, 4, 8, dan 12. Hasil penelitian menunjukkan bahwa konsentrasi hambat minimum (KHM) ekstrak bawang putih adalah 20% dan konsentrasi tertinggi yang masih diterima oleh panelis adalah 30%. Perendaman fillet ikan nila merah dalam asam asetat dan pelapisan edible coating ekstrak bawang putih dapat menghambat kerusakan fisik, kimia, dan mikrobiologis sampai hari ke-8 pada suhu penyimpanan 4±1ºC. Perlakuan terbaik adalah asam asetat dengan konsentrasi 1% dan ekstrak bawang putih 20%.Kata Kunci : asam asetat, edible coating, ekstrak bawang putih, nila merah, suhu rendah
PENGARUH JENIS DAN KONSENTRASI BAHAN PENSTABIL TERHADAP MUTU FISIK KIMIA DAN SENSORIS VELVA BUAH MELON (Cucumis melo L.) Haryono, Dayanti; Hartanto, Rofandi; Yudhistira, Bara
Jurnal Teknologi Hasil Pertanian Vol 12, No 1 (2019): Februari
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.925 KB) | DOI: 10.20961/jthp.v12i1.34843

Abstract

Alternatif dessert untuk masyarakat yang menderita alergi susu sapi, intoleransi laktosa, dan diet rendah lemak, maka dibuatlah dessert yang mempunyai kandungan rendah lemak yaitu velva buah. Velva buah dapat dibuat dari buah yang mengandung padatan terlarut tinggi yaitu melon. Velva buah diharapkan bertekstur halus dan tidak cepet meleh makan ditambahkan bahan penstabil. Bahan penstabilnya yaitu karagenan, gum arab, dan guar gum. Tujuan penelitian ini untuk mengetahui pengaruh penggunaan jenis dan konsentrasi bahan penstabil terhadap velva buah buah melon. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) satu faktor yaitu kombinasi karagenan, gum arab, dan guar gum dengan perlakuan dua kali pengulangan sampel dan tiga kali pengulangan analisis. Semua data hasil penelitian dianalisis menggunakan One Way Analysis of Variance (ANOVA) dengan menggunakan SPSS. Apabila hasil menunjukkan ada perbedaan nyata anatar perlakukan maka dilanjutkan dengan Duncan’s Multiple Range Test (DMRT) pada α=0.05. Berdasarkan uji pembobotan formulasi terbaik yaitu F4 (0,5%, gum arab 0,25%, guar gum 0,25%) dengan hasil yaitu viskositas 1630,87 cP;  padatan terlarut 19,10oBrix, overrun 24,87%; lama leleh 8,60 menit; kadar air 77,61%; kadar vitamin C 22,45 mg/100gr; kadar serat pangan 2,31%; aktivitas antioksidan 3,98%; skor untuk analisa sensoris secara umum panelis menyukai velva melon dengan masing-masing skor aroma 3,60; rasa 4,08; tekstur 4,32; warna 4,48, dan overall 4,24.
UJI PENGARUH JARAK SUMBER PANAS DAN LAMA PENGASAPAN TERHADAP KARAKTERISTIK KIMIA IKAN LELE (Clarias sp.) ASAP PADA ALAT PENGASAP TIPE TEGAK Hartanto, Rofandi; Amanto, Bambang Sigit; Khasanah, Lia Umi; Pusparani, Lusiana
Jurnal Teknologi Hasil Pertanian Vol 12, No 2 (2019): Agustus
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.179 KB) | DOI: 10.20961/jthp.v12i2.35004

Abstract

The Empowerment of The Joho Village Farmers Groups Through Corn Grit Production Siswanti, Siswanti; Anandito, Baskara Katri; Hartanto, Rofandi; Widowati, Dyah
PRIMA: Journal of Community Empowering and Services Vol 7, No 1 (2023): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prima.v7i1.71547

Abstract

Most of the Joho Village people depend on rice as a staple, which triggers limited economic growth in the agricultural sector. The area has abundant corn yields and is potentially processed as corn grits (rice alternative). Corn processing has solely in dry-shelled corn form, a drop in corn-shelled prices, the stagnant of the Farmers Groups Association (FGA) activity, and the lack of knowledge (food products processing, entrepreneurship, and digital marketing) underlie these community service activities. The service activities aim to optimize the program for implementing science, technology, and FGA empowerment in Joho Village to discover corn grit production potential and ensure the sustainability of FGA community activities. Therefore, the service team agreed with Joho Village FGA to organize programs: (1) Corn grit and production methods socialization (Zoom meetings and direct discussion); (2) Production equipment introduction (direct discussion); (3) Corn grits production training (hands-on practice method); (4) Entrepreneurship and digital marketing socialization (direct discussion). The questionnaire was selected as a socialization evaluation method. Joho Village FGA has high enthusiasm for activity participation (90% of attendance). The service activities succeeded in increasing corn grit production expertise (86% of yield) and improved the knowledge of corn grits (80% of increased knowledge), entrepreneurship (81.25% of increased knowledge), and digital marketing (70% of increased knowledge) of Joho Village FGA. These achievements indicated corn grit production potential as the forecast of their business opportunities in the future and embarked on the beginning of Joho Village FGA’s empowerment sustainability.
Co-Authors Ady Saputra Al Hakim, Muhammad Luqman Anandito, Baskara Katri Bambang Sigit Amanto, Bambang Sigit Bara Yudhistira, Bara Dyah Widowati Edhi Nurhartadi Haryono, Dayanti Pusparani, Lusiana Siswanti Siswanti Warji Warji