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All Journal Jurnal Teknologi Dan Industri Pangan Teknotan: Jurnal Industri Teknologi Pertanian Jurnal AGROTEKNOLOGI e-Journal Pustaka Kesehatan Agrointek Jurnal Penelitian Pascapanen Pertanian Jurnal Pangan dan Agroindustri Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian Indonesian Journal of Pharmaceutical Science and Technology agriTECH Warta IHP (Warta Industri Hasil Pertanian) UNEJ e-Proceeding Industria: Jurnal Teknologi dan Manajemen Agroindustri Jurnal Pemberdayaan Masyarakat Madani (JPMM) JURNAL PANGAN J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Food ScienTech Journal Narra J Berkala Penelitian Hayati Jurnal Teknik Pertanian Terapan

Achmad Subagio

Jurusan Teknologi Hasil Pertanian Universitas Jember Jl. Kalimantan 37 Kampus Bumi Tegal Boto Kotak Pos 159 Jember 68121, Indonesia

Author-ID : 439354

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Ekstraksi Virgin Coconut Oil Secara Enzimatis Menggunakan Protease dari Tanaman Biduri (Calotropis gigantea) Yuli Witono; Aulanni'am Aulanni'am; Achmad Subagio; Simon Bambang Widjanarko
agriTECH Vol 27, No 3 (2007)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

This research deals with enzymatic extraction of virgin coconut oil (VCO) by protease from biduri plant (Calotropisgigantea) in various concentrations of 0.00; 0.05; 0.10 and 0.15% (w/w), and incubation times of 2; 3 and 4 hours. Theresults showed that the biduri protease was effective in extracting VCO. The higher concentration of biduri protease,the viscocity of VCO increased. Furthermore, the VCO quality produced by using the enzymatic extraction was betterthan that of spontaneous fermentation based on acid value and % FFA.ABSTRAKPenelitian ini bertujuan untuk mempelajari ekstraksi virgin coconut oil (VCO) secara enzimatis menggunakan proteasedari tanaman biduri (Calotropis gigantea) dengan variasi konsentrasi 0,00; 0,05; 0,10 and 0,15% (b/b), dan lamainkubasi 2; 3 dan 4 jam. Hasil penelitian menunjukkan bahwa protease biduri efektif digunakan untuk mengekstrakVCO. Semakin tinggi konsentrasi protease biduri, viskositas VCO semakin meningkat. Kualitas VCO yang diproduksisecara enzimatis lebih baik daripada VCO yang diproses secara fermentasi spontan ditinjau berdasarkan parameterbilangan asam dan % FFA (free fatty acid).

Korelasi Antar Beberapa Sifat Sensorik Jubedhe Achmad Subagio
agriTECH Vol 13, No 1 (1993)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Jubedhe were prepared from different proportions of raw material analyzed for the sensory characteristics.The result indicated that aroma was the greatest factor effecting the jubedhe acceptability, while texture and color determined the jubedhe acceptability small sweetness did not influence the jubedhe acceptability significantly. Aroma together with texture and colour given influence to the jubedhe acceptability about 67%.

Sifat-Sifat Fisikokimia Pati Ubi Kayu Terfermentasi Khamir Indigenus Tapai Heru Widyatmoko; Achmad Subagio; Nurhayati Nurhayati
agriTECH Vol 38, No 2 (2018)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Tapai is a cassava food product fermented by yeast starter (“Ragi”). Among the amylolitic yeasts that had been isolated from the tapai were Candida guilliermondii, C. tropicalis, Trichosporon mucoides, and Saccharomycopsis fibuligera. The aim of this research was to characterize the physicochemical properties of fermented cassava starch by amylolytic yeasts of indigenus tapai i.e. C. guilliermondii, C. tropicalis, T. mucoides, and S. fibuligera. The process of fermentation of cassava starch was done by inoculating each pure isolate by 5% v / v (105 CFU / ml) into cassava starch suspension 50% b/v (100g starch into 200ml sterile distilled water). The incubation was carried out at 28 °C for 24 h, 48 h, and 72 h. The fermented cassava starch was dried at 50 °C for 24 h. Characterization of physicochemical properties of cassava starch included chemical properties (amylose content), paste properties (RVA), thermal properties (DSC), physical properties (SEM granule macrostructure) and functional groups (FT-IR) of unfermented (native) or fermented cassava starch. The results showed that during the fermentation process, the yeast was able to grow up to 7 log10 CFU/ml and the acidity decreased to pH 3,9. The amylose content of fermented cassava starch decreased to 11,22% from native starch amylose content (15,85%). The paste properties of fermented cassava starch increased at the value of trough viscosity, breakdown, final viscosity, and swelling power. The thermal properties of fermented cassava starch increased to 64,7-67 °C for the initial temperature value of gelatinization (To), 69,1-71,2 °C for gelatinization peak temperature (Tp), 73,9-75 °C for the final temperature of gelatinization (Tc), but decreased gelatinization enthalpy in the range of ΔH 4,84-6,38 J/g. The macrostructure of the longest fermented starch granules (72 hours)occurred liberation into irregular granular shapes. The profile of fermented cassava starch functional groups had a similarity with native cassava starch that had the highest absorption spectra at 3291,2 cm-1 peak (vibration of the O-H bonding group) and 2920 cm-1 peak (C-H group vibration). ABSTRAKTapai merupakan produk pangan ubi kayu yang terfermentasi oleh starter khamir (ragi). Di antara khamir amilolitik yang sudah diisolasi dari tapai yaitu Candida guilliermondii, C. tropicalis, Trichosporon mucoides, dan Saccharomycopsis fibuligera. Tujuan penelitian ini adalah melakukan karakterisasi sifat-sifat fisikokimia pati ubi kayu yang difermentasi oleh khamir amilolitik indigenus tapai yaitu C. guilliermondii, C. tropicalis, T. mucoides, dan S. fibuligera. Proses fermentasi pati ubi kayu dilakukan dengan menginokulasikan masing-masing isolat murni sebanyak 5% v/v (105 CFU/ml) ke dalam suspensi pati ubi kayu 50% b/v (100g pati ke dalam 200ml akuades steril). Selanjutnya dilakukan inkubasi pada suhu 28 °C selama 24, 48, dan 72 jam. Pati ubi kayu terfermentasi dikeringkan pada suhu 50 oC selama 24 jam. Karakterisasi sifat-sifat fisikokimia pati ubi kayu meliputi sifat kimia (kadar amilosa), sifat pasta (RVA), sifat termal (DSC), sifat fisik (makrostruktur granula SEM) dan gugus fungsi (FT-IR) pati ubi kayu alami maupun pati ubi kayu terfermentasi. Hasil penelitian menunjukkan bahwa selama proses fermentasi, khamir mampu tumbuh hingga mencapai 7 log10 CFU/ml dan derajat keasaman mengalami penurunan mencapai pH 3,9. Kadar amilosa pati ubi kayu terfermentasi mengalami penurunan menjadi 11,22% dari kadar amilosa pati alami (15,85%). Sifat pasta pati ubi kayu terfermentasi khamir mengalami peningkatan pada nilai viskositas trough, breakdown, viskositas akhir, dan daya kembang. Sifat termal pati ubi kayu terfermentasi menglamai peningkatan menjadi 64,7-67 °C untuk nilai suhu awal gelatinisasi (To), 69,1-71,2 °C untuk suhu puncak gelatinisasi (Tp), 73,9-75 °C untuk suhu akhir gelatinisasi (Tc), tetapi mengalami penurunan entalpi gelatinisasi pada kisaran ∆H 4,84-6,38 J/g. Makrostruktur granula pati yang terfermentasi paling lama (72 jam) mengalami liberasi dengan bentuk granula yang tidak beraturan. Profil gugus fungsi pati ubi kayu terfermentasi oleh khamir memiliki kemiripan dengan pati ubi kayu alami yaitu memiliki spektra penyerapan tertinggi pada puncak 3291,2 cm-1 (getaran gugus ikatan O-H) dan puncak 2920 cm-1 (getaran gugus C-H).

Co-Authors -, Giyarto Agafatmi, Izzun Agustin Akhiriani, Resti Agustin Akhiriani, Resti Ahmad Nafi Ahmad Nafi Ahmad Nafi Ahmad Nafi’ Ainur Rofiah, Alif Alif Ainur Rofiah Alshammari, Fanar Hamad Amelia Puspitasari Aminah Abdullah Amini, Stefia A. Ancah Caesarina Novi Marchianti Andri Pamungkas Ararinda Kusweni, Nelfi Arifah, Naila Zanuba Asmak Afriliana Aulanni'am, Aulanni'am Aulanni’am Aulanni’am Aunur Rofiq AUNUR ROFIQ Azkiyah, Lailatul Bambang Piluharto Denik Setiawati Djamali, R. Abdoel Dwiyanti, Inayatus Nur EKA RURIANI Fahmi, Dafiq Kurniawan Fambudi, Stela S. Fatimah Wahyu Firdaus, Lutfi Gita Vindy, Pradiska Giyarto Giyarto Gustika Umiyati Herlina Herlina Herry Purnomo, Bambang Heru Widyatmoko Iguchi, Miyuki Inayatul Aulia Indarto Indarto indarto indarto Irsyam, Mahrus Jauhar Firdaus Lindrianasari Liony Dwi Yulianti Lutfi Firdaus Marchianti, Ancah CN. Maryanto - Mohammad Mardiyanto Mukhamad Fauzi Mukhammad Fauzi Nafi', Ahmad Nanto, Mai nFN Maryanto Nia Ariani Putri Nia Ariani Putri Nugraha Yuwana Nugraha Yuwana Nur Aini Nur Lutfian Sari, Riri Nurhayati Nurhayati Nurud Diniyah Nurul Isnaini Fitriyana Pradiska Gita Vindy Pradiska Gita Vindy Ganesha Prasetyo, Aris Puspita Sari Puspita Sari Putri, Dhiani E. Riri Nur Lutfian Sari Riri Nur Lutfian Sari Sakinah, Elly N. Shahira, Silvia Faradjdilara Sih Yuwanti SIMON BAMBANG WIDJANARKO Siti Windrati, Wiwik Subekah Nawa Kartikasari Subekah Nawa Kartikasari Tri Susanto Wiwik Siti Windrati Wiwik Siti Windrati Wiwik Siti Windrati Wiwik Siti Windrati Yoshino, Tomoyuki Yuli Wibowo Yuli Witono Yulianti, Liony Dwi

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