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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Dan Industri Pangan Jurnal Silvikultur Tropika (JST) Jurnal Pengolahan Hasil Perikanan Indonesia VALENSI JURNAL KIMIA SAINS DAN APLIKASI Agrointek Jurnal Penelitian Pascapanen Pertanian Jurnal Teknologi Pertanian Jurnal Kimia dan Kemasan agriTECH Indonesian Journal of Biotechnology Warta IHP (Warta Industri Hasil Pertanian) Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Jurnal Kimia Terapan Indonesia Indonesian Food and Nutrition Progress JURNAL SELULOSA Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Jurnal Mutu Pangan : Indonesian Journal of Food Quality Jurnal Kimia dan Kemasan Policy Brief Pertanian, Kelautan, dan Biosains Tropika Jurnal Standardisasi

Hanifah Nuryani Lioe

Departemen Ilmu Dan Teknologi Pangan, Fakultas Teknologi Pertanian, IPB University, Bogor, Indonesia

Author-ID : 307810

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Other

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Evaluation of Major Fatty Acids Determination in Palm Oil by Gas Chromatography-Flame Ionization Detection Moh Taufik; Hanifah Nuryani Lioe; Nancy Dewi Yuliana
agriTECH Vol 36, No 3 (2016)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The fatty acid composition of palm oil is the major factor influencing its physical and chemical properties. The purpose of this research was to evaluate the analytical performance of major fatty acids (palmitic acid, stearic acid, oleic acid, and linoleic acid) analysis in palm oil. Triglycerides of palm oil were derivatized to fatty acid methyl esters (FAMEs) by using boron trifluoride (BF3) in methanol. FAMEs were determined by gas chromatography-flame ionization detection (GC-FID) using DB-23 capillary column as stationary phase. The studied parameters were instrument performance analysis, the efficiency of fatty acid derivatization, stability of derivatized analytes, accuracy, repeatability, intra-lab reproducibility, ruggedness, and method uncertainty. The evaluation results showed the instrument linearity at a working range of 5 to 40 mg/mL marked by coefficient of determination (R2) between 0.991-0.995. Instrument limits of detection (LOD) and instrument limits of quantification (LOQ) for 4 major fatty acids analysis were 26-35 µg/mLand 86-128 µg/mL, respectively. The increase of fatty acid concentration led to the decrease of derivatization efficiency in the fatty acids analysis. The result also showed that derivatized analytes were stable during 24 h storage at freeze temperature. The average recovery values by spiking method with the spiking concentration at 50 and 90 mg/g sample were at 75-94 % for stearic and linoleic acids analysis, however those for palmitic and oleic acids analysis were considered very low (<40 %), due to their low derivatization efficiency. Repeatability and intra-lab reproducibility of 4 major fatty acids analysis were at acceptable ranges, 0.45-1.38 % and 1.15-2.03 %, respectively. Determination by varying the volume of derivatizing agent showed the rugged method. Uncertainty of repeatability (Ur) and uncertainty of reproducibility (Ur) were ranged at 1.84-9.02 mg/g and 1.40-10.65 mg/g, respectively. This method was considerably reliable for the analysis of less abundance fatty acids in palm oil, stearic and linoleic acids.

Kondisi Penyimpanan Kacang Tanah dan Potensi Cemaran Aspergillus flavus pada Pedagang Pengecer Pasar Tradisional di Wilayah Jakarta Widya Eka Prayitno; Harsi Dewantari Kusumaningrum; Hanifah Nuryani Lioe
agriTECH Vol 38, No 1 (2018)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Factors affecting contamination on peanut kernel marketed in Jakarta has not been investigated yet. The purpose of the research was to investigate and evaluate the storage condition and the behavior of retailers on the way of peanuts storage and also to investigate the presence of Aspergillus flavus infection in the peanuts. The research was conducted at traditional market with 15 peanut retailers as respondents (n=15). The research stages included survey at retailer area including interview, observation, temperature and relative humidity measurements as well as peanuts analysis including moisture content, defective seeds and presence of A. flavus. The results of research revealed that the average temperature of peanut storage area at retail stalls range from 29.6 to 31.2 °C which is not in accordance with the Codex Alimentarius Commission (CAC) recommendation, while the average of storage room RH ranged between 53.6–73.1% and moisture content of peanuts of 6.23–7.86% were mostly in accordance to CAC recommendation. The percentage of damage, shrivelled and splitted seeds ranged between 3.9–19.1%, 5.4–32.3% and 0.2–8.8%, respectively. The range of mean of total molds and A. flavus were 2.5–5.6 log cfu/g and 1.3–4.0 log cfu/g, respectively. Total molds had a strong correlation to damage kernels (r = 0.74), and had a moderate correlation to the temperature (r = 0.41), moisture content (r = 0.42) and behavior of retailers, especially in cleaning the ceiling (r = 0.44) and placing the storage container (r = 0.44). The presence of A. flavus had a slight correlation to relative humidity on storage (r = 0.26), and had no significant correlation to peanuts damage and all storage conditions. ABSTRAKFaktor-faktor yang mempengaruhi cemaran aflatoksin pada biji kacang tanah atau ose di wilayah Jakarta belum pernah dilaporkan. Penelitian ini dilakukan di pasar tradisional dengan 15 pedagang pengecer kacang tanah sebagai responden (n=15). Tujuan penelitian adalah mengidentifikasi dan mengevaluasi kondisi penyimpanan dan perilaku pengecer dalam menyimpan kacang tanah serta mengidentifikasi potensi cemaran Aspergillus flavus pada kacang tanah. Tahap penelitian meliputi survei di area pengecer (wawancara, pengamatan langsung dan pengukuran suhu serta kelembaban relatif (RH) di area penyimpanan) serta analisis kacang tanah (kadar air, biji cacat, dan keberadaan A. flavus). Hasil studi menunjukkan rata-rata kisaran suhu area penyimpanan kacang tanah di kios pengecer berkisar antara 29,6–31,2 °C. Hal ini tidak sesuai dengan rekomendasi Codex Alimentarius Commission (CAC), meskipun sebagian besar rata-rata kisaran RH area penyimpanan berkisar antara 53,6–73,1% dan kadar air kacang tanah sebesar 6,23–7,86% yang sesuai dengan rekomendasi CAC. Rata-rata biji rusak, biji keriput dan biji belah ditemukan pada kisaran, berturut-turut, 3,9-19,1%, 5,4–32,3% dan 0,2–8,8%. Rata-rata total kapang dan A. flavus pada sampel kacang tanah, masing-masing, ditemukan berkisar antara 2,5–5,6 log cfu/g dan 1,3–4,0 log cfu/g. Total kapang pada sampel kacang tanah memiliki korelasi positif yang kuat dengan biji rusak (r = 0,74), dan berkorelasi positif pada tingkat sedang dengan suhu (r = 0,41), kadar air (r = 0,42) dan perilaku pengecer dalam pembersihan langit-langit kios (r = 0,44) serta penempatan wadah simpan kacang tanah (r = 0,44). Studi ini menunjukkan bahwa keberadaan A. flavus pada sampel kacang tanah berkorelasi positif lemah dengan kelembaban relatif di area penyimpanan (r = 0,26) dan tidak memiliki korelasi secara signifikan dengan biji rusak maupun semua kondisi penyimpanan lainnya.

Co-Authors Abdul Choliq Abdul Munif Agustina, Lenny Aida Fadhilah Anastasia Fitria Devi Annisa Defriana Anuraga Jayanegara Anuraga Jayanegara Arum Safriana Dewi Badrut Tamam Betty S. L. Jenie Budi Nurtama C Hanny Wijaya Chalisya, Nadiah Cony Arisya Putri Dahrul Syah Dede Robiatul Adawiyah Dedi Fardiaz Dian Herawati Dian Muzdalifah Diana Ayu Nindita Dias Indrasti Dina Mariana Dina Mariana Dodik Briawan Dwi Rahmawati Dwi Rahmawati Dwiyitno Dwiyitno Dwiyitno Dwiyitno Elis Nina Herliyana Eni Kusumaningtyas Faiza A Dali farida ariyani Farida Ariyani Feri Kusnandar Hari Eko Irianto Hari Eko Irianto Harsi D. Kusumaningrum Irma Isnafia Arief Istiqamah Istiqamah Jan Schwarzbauer Jan Schwarzbauer Kurnianto, Muhammad Alfid Laras Cempaka Larissa Dsikowitzky Larissa Dsikowitzky Leonie Margaretha Widya Pangestika, Leonie Margaretha Widya Lilis Nuraida Madaniyah, Siti Maggy T. Suhartono Maggy T. Suhartono Maggy Thenawidjaja Suhartono Masao Goto Maya Saputri Melzer, Guido Mira Febrianti Muhammad Anwari Sugiharto Muhammad Hanafi N. Nurjanah Nancy Dewi Yuliana Neny Mariyani Ni Wayan Triwulandhari Nina Artanti Noer Laily Nuri Andarwulan Palupi, Nurheni Sri Puspo Edi Giriwono Rahmatia Garwan Ririn Anggraeni Rizaludin Nur Rizki Maryam Astuti Santi Ambarwati Sinta Simatupang Siti Madaniyah Sobir Sobir Sri Sugiwati Sugoi Marsaputra Karsodimejo Suliantari Suliantari SULISTIANI SULISTIANI Suyanto Suyanto TATI NURHAYATI Tatik Khusniati Taufik, Moh Tika Setianingrum Tuti Rostianti Maulani Warsono El Kiyat Weinreich, Bernd Widya Eka Prayitno Widya Puspantari Winiati P. Rahayu Winiati P. Rahayu Wisnu Ananta Kusuma Wisnu Broto Yane Regiyana Yeni Restiani Yuko Takano Ishikawa Yuli Maulidiyah Yulina Lailatul Maslukhah Zatil Afrah Athaillah Zulaikhah Zulaikhah Zulaikhah Zulaikhah, Zulaikhah

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