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All Journal Jurnal Teknologi Industri Pertanian MEDIA MEDIKA INDONESIANA Jurnal AGROTEKNOLOGI Journal of Biomedicine and Translational Research Erudio: Journal of Educational Innovation agriTECH Jurnal Agroindustri WARTA AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian EduChemia: Jurnal Kimia dan Pendidikan Alotrop Jurnal Pendidikan dan Ilmu Kimia Jurnal Bioteknologi & Biosains Indonesia (JBBI) PENDIPA Journal of Science Education JMM (Jurnal Masyarakat Mandiri) Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS IJORER : International Journal of Recent Educational Research Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Andromeda: Jurnal Pengabdian Masyarakat Rafflesia al Kimiya : Jurnal Ilmu Kimia dan Terapan

Budiyanto Budiyanto

Universitas Bengkulu

Author-ID : 244540

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Social Sciences Other

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KEMAMPUAN EKSTRAK SENYAWA AKTIF BAKTERI ENDOFIT DALAM MENGHAMBAT PERTUMBUHAN Fusarium oxysporum f.sp. PADA KELAPA SAWIT Candrawati, Emilia; Rupaedah, Bedah; Sumpono, Sumpono; Sundaryono, Agus
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol 5, No 2 (2018): December 2018
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Ability of Active Compound Extract of Endophytic Bacteria to Inhibit the Growth of Fusarium oxysporum f.sp. in Oil Palm ABSTRACTWilt vessels disease in oil palm plants is caused by Fusarium oxysporum f.sp. This disease is very harmful because of its ability to kill the infected oil palm plant in less than a year. Endophytic bacteria are likely to be biological controllers for the disease because of their ability to produce bioactive antifungal compounds. Isolation of endophytic bacteria from oil palm plant and activity test of their active compounds against F. oxysporum f.sp. in vitro had been done. Antagonistic test of endophytic bacterial isolates against F. oxysporum f.sp. was carried out using a double culture method. The potential endophytic bacterial isolates were extracted using ethyl acetate solvent for their active compounds, which were then tested for its activity in inhibiting the growth of F. oxysporum f.sp. The results showed that the active compound extract of B11 endophytic bacteria with the incubation time of 24 and 54 hours gave the growth inhibition of F. oxysporum f.sp. at the level of 29.23% and 43.85%, respectively.Keywords: antagonistic test, bioactive compound, endophytic bacteria, F. oxysporum f.sp., oil palm ABSTRAKPenyakit layu pembuluh pada tanaman kelapa sawit disebabkan oleh Fusarium oxysporum f.sp. Penyakit ini menjadi penyebab kematian tanaman kelapa sawit yang telah terinfeksi dalam waktu kurang dari setahun. Bakteri endofit asal tanaman kelapa sawit dimungkinkan menjadi pengendali hayati bagi penyakit ini karena kemampuan bakteri tersebut memproduksi senyawa bioaktif yang bersifat antifungi. Isolasi bakteri endofit dari tanaman kelapa sawit dan uji aktivitas senyawa aktifnya terhadap F. oxysporum f.sp. secara in vitro telah dilakukan. Uji antagonis isolat bakteri endofit terhadap jamur patogen F. oxysporum f.sp. menggunakan metode kultur ganda. Isolat bakteri endofit potensial diekstrak senyawa aktifnya dengan menggunakan pelarut etil asetat, kemudian senyawa aktif ini diuji aktivitasnya dalam menghambat pertumbuhan jamur patogen F. oxysporum f.sp. Hasil penelitian menunjukkan bahwa ekstrak senyawa aktif bakteri endofit B11 dengan waktu inkubasi 24 dan 54 jam memberikan daya hambat terhadap F. oxysporum f.sp. sebesar masing-masing 29,23% dan 43,85%.Kata Kunci: bakteri endofit, F. oxysporum f.sp., kelapa sawit, senyawa aktif, uji antagonis

KEMAMPUAN EKSTRAK SENYAWA AKTIF BAKTERI ENDOFIT DALAM MENGHAMBAT PERTUMBUHAN Fusarium oxysporum f.sp. PADA KELAPA SAWIT Candrawati, Emilia; Rupaedah, Bedah; Sumpono, Sumpono; Sundaryono, Agus
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 5 No. 2 (2018): December 2018
Publisher : Balai Bioteknologi, Badan Pengkajian dan Penerapan Teknologi (BPPT)

Ability of Active Compound Extract of Endophytic Bacteria to Inhibit the Growth of Fusarium oxysporum f.sp. in Oil PalmÃ‚Â ABSTRACTWilt vessels disease in oil palm plants is caused by Fusarium oxysporum f.sp. This disease is very harmful because of its ability to kill the infected oil palm plant in less than a year. Endophytic bacteria are likely to be biological controllers for the disease because of their ability to produce bioactive antifungal compounds. Isolation of endophytic bacteria from oil palm plant and activity test of their active compounds against F. oxysporum f.sp. in vitro had been done. Antagonistic test of endophytic bacterial isolates against F. oxysporum f.sp. was carried out using a double culture method. The potential endophytic bacterial isolates were extracted using ethyl acetate solvent for their active compounds, which were then tested for its activity in inhibiting the growth of F. oxysporum f.sp. The results showed that the active compound extract of B11 endophytic bacteria with the incubation time of 24 and 54 hours gave the growth inhibition of F. oxysporum f.sp. at the level of 29.23% and 43.85%, respectively.Keywords: antagonistic test, bioactive compound, endophytic bacteria, F. oxysporum f.sp., oil palmÃ‚Â ABSTRAKPenyakit layu pembuluh pada tanaman kelapa sawit disebabkan oleh Fusarium oxysporum f.sp. Penyakit ini menjadi penyebab kematian tanaman kelapa sawit yang telah terinfeksi dalam waktu kurang dari setahun. Bakteri endofit asal tanaman kelapa sawit dimungkinkan menjadi pengendali hayati bagi penyakit ini karena kemampuan bakteri tersebut memproduksi senyawa bioaktif yang bersifat antifungi. Isolasi bakteri endofit dari tanaman kelapa sawit dan uji aktivitas senyawa aktifnya terhadap F. oxysporum f.sp. secara in vitro telah dilakukan. Uji antagonis isolat bakteri endofit terhadap jamur patogen F. oxysporum f.sp. menggunakan metode kultur ganda. Isolat bakteri endofit potensial diekstrak senyawa aktifnya dengan menggunakan pelarut etil asetat, kemudian senyawa aktif ini diuji aktivitasnya dalam menghambat pertumbuhan jamur patogen F. oxysporum f.sp. Hasil penelitian menunjukkan bahwa ekstrak senyawa aktif bakteri endofit B11 dengan waktu inkubasi 24 dan 54 jam memberikan daya hambat terhadap F. oxysporum f.sp. sebesar masing-masing 29,23% dan 43,85%.Kata Kunci: bakteri endofit, F. oxysporum f.sp., kelapa sawit, senyawa aktif, uji antagonisÃ‚Â

PREPARATION OF LIQUID HIDROCARBON FUEL BY CRACKING Agus Sundaryono dan Budiyanto
Jurnal Teknologi Industri Pertanian Vol. 20 No. 1 (2010): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT The objective of the study was to evaluate the utilization of two types of zeolite catalists to produce liquid hidrocarbon fuel from oil fraction of palm oil mill effluent (POME). The oil fractions of POME were converted into metil ester prior to be cracked using bifunctional catalist of zeolite. Esterification of the oil was done by using H2SO4 at 60 oC for two hours and transesterification of it by using NaOH at 55 oC. The product methtyl ester of the POME was cracked with zeolit catalists Cr-H-ZA (25:1) and Ni-H-ZA. The result had indicated that zeolit catalist Cr-H-ZA could yield liquid hidrocarbon that containing fraction of gasoline fuel better than zeolite catalist Ni-H-ZA. The product liquid hidrocarbon had kinematic viscosity of 0.8329 cSt and had similar properties of gasoline fuel. Keywords: catalitic craking, liquid hidrocarbon fuel, methylester, POME

CHARACTERISTIC OF BIODISESEL AND BIODIESEL BLENDING OF OIL LOSSES FROM LIQUID WASTE OF OIL PALM FACTORY Agus Sundaryono TIN
Jurnal Teknologi Industri Pertanian Vol. 21 No. 1 (2011): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT The aim of this study was to convert oil losses from palm oil mill (POM) liquid waste into methyl ester. Methyl ester as a result of conversion process was further developed into blending biodiesel. The research was conducted through several stages: 1). insolating oil losses of POM waste which taken from PT Bio Nusantara Bengkulu. Oil losses were degummed and bleached and then the free fatty acid was determined. 2). the conversion process of oil losses into methyl ester was done through two stages of esterification reactions; using H2SO4 catalyst at 60oC for 2 hours and transesterification using NaOH catalyst at 55oC for 2 hours. 3). Methyl ester was developed as a blending of biodiesel, which is a mixture of methyl ester with diesel oil, with the percentages of methyl ester of 25%, 30%, 35%, 40%, and 45%. The yield of methyl ester obtained was 87%. Characterization of methyl ester was done with the following results : 0.858 g/cm3 density, 3.04 cSt viscosity, 3.5% water content, 12.3°C cloud point, 8.3°C pour point, 6.86 mgNaOH/g acid number, 164.4 mgNaOH/g saponification numbers, 108.4% iodine number, and 51.58 cetane number. The parameters do not meet SNI 04-7182-2006 for biodiesel were water content and acid number. Methyl ester can be developed into blending biodiesel with the characteristic of density, viscosity, cloud point, pour point, saponification number, and cetane number which meet biodiesel standard according to SNI 04-7182-2006. Keywords: biodiesel, oil losses, methyl ester, waste palm oil mill (POM), transesterification

PERENGKAHAN KATALITIK METIL ESTER DARI MINYAK LIMBAH CAIR PABRIK MINYAK KELAPA SAWIT DENGAN KATALIS Cr/Mo/HZA DAN Ni/Mo/HZA Agus Sundaryono, Dewi Handayani, Budiman , Sherly Winda TIP
Jurnal Teknologi Industri Pertanian Vol. 25 No. 1 (2015): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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The proposed catalytic cracking technology leads to the production of hydrocarbons that are present in variousfractions of gasoline, kerosene and diesel. In this study, the methyl ester was converted by catalytic cracking using catalyst Cr / Mo / HZA and Ni / Mo / HZA. Preparation of catalyst Cr / Mo / HZA was performed by soaking the natural zeolite powder (ZA) with HCl. The catalyst of HZA was refluxed by (NH4)Mo7O24.4H2O, then dried to obtain the catalyst of Mo/HZA. Futhermore,catalyst of Mo / HZA was refluxed by Cr (NO3) 3.9H2O. The catalyst pruduct of Cr / Mo /HZA was calcined at 500ºC. Catalysts Ni/Mo/ HZA was obtained through the same procedure by replacing Cr (NO3)3.9H2O with NiCl2.6H2O. Cracking was done by refluxing a methyl ester of oil residu slude waste (POME) with 1.5 g catalyst Cr / Mo / HZA and catalyst Ni / Mo / HZA at 350-380ºC . Results of the reflux were analyzed by GC-MS. The products of cracking of catalysts Cr / Mo / HZA were hydrocarbons that wasfractions of keroseneof 31.35%, and diesel fraction of 10.16%. While the product catalyst of Ni / Mo / HZA were 0.33% gas fractions,10.63% fractions gasoline and 11.02%fractions kerosene. The density was similar to densities ofgasoline and kerosene, the viscosity was similar to kerosene, acid number was about two times of acid numbers of gasoline and kerosene while water content was still higher than that of gasoline and kerosene.Keywords: Methyl ester, catalytic cracking, palm oil, gasoline, kerosene

KEMAMPUAN EKSTRAK SENYAWA AKTIF BAKTERI ENDOFIT DALAM MENGHAMBAT PERTUMBUHAN Fusarium oxysporum f.sp. PADA KELAPA SAWIT Emilia Candrawati; Bedah Rupaedah; Sumpono Sumpono; Agus Sundaryono
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 5 No. 2 (2018): December 2018
Publisher : Balai Bioteknologi, Badan Pengkajian dan Penerapan Teknologi (BPPT)

Ability of Active Compound Extract of Endophytic Bacteria to Inhibit the Growth of Fusarium oxysporum f.sp. in Oil PalmÂ ABSTRACTWilt vessels disease in oil palm plants is caused by Fusarium oxysporum f.sp. This disease is very harmful because of its ability to kill the infected oil palm plant in less than a year. Endophytic bacteria are likely to be biological controllers for the disease because of their ability to produce bioactive antifungal compounds. Isolation of endophytic bacteria from oil palm plant and activity test of their active compounds against F. oxysporum f.sp. in vitro had been done. Antagonistic test of endophytic bacterial isolates against F. oxysporum f.sp. was carried out using a double culture method. The potential endophytic bacterial isolates were extracted using ethyl acetate solvent for their active compounds, which were then tested for its activity in inhibiting the growth of F. oxysporum f.sp. The results showed that the active compound extract of B11 endophytic bacteria with the incubation time of 24 and 54 hours gave the growth inhibition of F. oxysporum f.sp. at the level of 29.23% and 43.85%, respectively.Keywords: antagonistic test, bioactive compound, endophytic bacteria, F. oxysporum f.sp., oil palmÂ ABSTRAKPenyakit layu pembuluh pada tanaman kelapa sawit disebabkan oleh Fusarium oxysporum f.sp. Penyakit ini menjadi penyebab kematian tanaman kelapa sawit yang telah terinfeksi dalam waktu kurang dari setahun. Bakteri endofit asal tanaman kelapa sawit dimungkinkan menjadi pengendali hayati bagi penyakit ini karena kemampuan bakteri tersebut memproduksi senyawa bioaktif yang bersifat antifungi. Isolasi bakteri endofit dari tanaman kelapa sawit dan uji aktivitas senyawa aktifnya terhadap F. oxysporum f.sp. secara in vitro telah dilakukan. Uji antagonis isolat bakteri endofit terhadap jamur patogen F. oxysporum f.sp. menggunakan metode kultur ganda. Isolat bakteri endofit potensial diekstrak senyawa aktifnya dengan menggunakan pelarut etil asetat, kemudian senyawa aktif ini diuji aktivitasnya dalam menghambat pertumbuhan jamur patogen F. oxysporum f.sp. Hasil penelitian menunjukkan bahwa ekstrak senyawa aktif bakteri endofit B11 dengan waktu inkubasi 24 dan 54 jam memberikan daya hambat terhadap F. oxysporum f.sp. sebesar masing-masing 29,23% dan 43,85%.Kata Kunci: bakteri endofit, F. oxysporum f.sp., kelapa sawit, senyawa aktif, uji antagonisÂ

THE IMPLEMENTATION OF A FLIPPED CLASSROOM MODEL UTILIZING A SCIENTIFIC APPROACH AND FLIPBOOK MAKER E-MODULE TO IMPROVE STUDENT LEARNING OUTCOMES Dewi Handayani; Endang Widi Winarni; Agus Sundaryono; Muhammad Lutfi Firdaus; Muzanip Alperi
Erudio Journal of Educational Innovation Vol 8, No 1 (2021): Erudio Journal of Educational Innovation
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18551/erudio.8-1.7

This research aimed to determine the influence of the flipped classroom model on students learning outcomes on the chemistry subject, particularly on electrolyte and non-electrolyte solutions. This research employed pre-experimental research and a one-group pre-test post-test design on one sample group. We used the method to compare pre-test and post-test results. This research was conducted in Public High School 9, Bengkulu City, Bengkulu Province, Indonesia. The population was 76 tenth graders of Mathematics and Natural Science Class. As many as 25 students of Class X-I were chosen as the samples using purposive sampling. The research instrument was pre-test and post-test, consisting of 10 questions to assess learning outcomes. We analyzed the average value of learning outcomes. The SPSS application was used to evaluate the normality, homogeneity, and hypotheses. The average pre-test score was 64.6, and the average post-test score was 87.8. Learning outcomes were normally and homogeneously distributed. The hypothesis testing produced a significance value of 0.000<0.05. Therefore, the flipped classroom model using a scientific approach and e-modules significantly affected the learning outcomes of the chemistry subject. The research result showed that the implementation of the flipped classroom model positively affected and improved the learning outcomes on the chemistry subject, particularly on electrolyte and non-electrolyte solutions.

Perubahan Kandungan Β-Karoten, Asam Lemak Bebas dan Bilangan Peroksida Minyak Sawit Merah Selama Pemanasan Budiyanto Budiyanto; Devi Silsia; Zulman Efendi; Rasie Janika
agriTECH Vol 30, No 2 (2010)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The objectives of the study were to evaluate decreasing pattern of ß-carotene, determine the changes of free fatty acid content and to determine peroxide value of red plam olein oil during heating. Red palm olein oil samples were heated at four different temperatures (150°C, 160°C, 170°C, and 180°C) for ten hours. Heated samples were taken every 30 minutes for each heating treatment. The ß-carotene, FFA, and peroxide value in each sample were evaluated. The data were plotted into its curve for further evaluation. The finding indicated that ß-carotene content in red palm olein oil decreased sharply in the first three hours of heating, especially for the oil heated at 180°C. In adition, heating for 10 hours resulted in decreasing of FFA and peroxide values, especially for red palm oil samples heated above 150°C.ABSTRAKPenelitian ini bertujuan untuk mengkaji pola penurunan kandungan ß-karoten, menentukan pola perubahan kandun- gan asam lemak bebas (FFA), dan menentukan pola perubahan bilangan peroksida minyak sawit merah selama pe- manasan. Minyak sawit merah dipanaskan pada empat suhu pemanasan yang berbeda (150°C, 160°C, 170°C, dan180°C) selama 10 jam. Sampel minyak diambil setiap 30 menit dari setiap minyak yang dipanaskan. Kandungan ß-karoten, FFA, dan bilangan peroksida pada setiap sampel dievaluasi. Data yang diperoleh dituangkan secara gra- fis untuk analisa lebih lanjut. Hasil Penelitian menunjukkan kandungan ß-karoten minyak sawit merah mengalami penurunan tajam selama tiga jam pertama pemanasan, khususnya pada minyak yang dipanaskan pada suhu 180°C. Selain itu, lama pemanasan selama 10 jam mengakibatkan terhadap turunnya kadar FFA serta penurunan bilangan peroksida, khususnya pada minyak yang mengalami pemanasan lebih dari 150°C.

Penggunaan Batang Tanaman Betadin (Jatropha mulitifida Linn) untuk Meningkatkan Jumlah Trombosit pada Mus musculus Agus Sundaryono
MEDIA MEDIKA INDONESIANA 2011:MMI Volume 45 Issue 2 Year 2011
Publisher : MEDIA MEDIKA INDONESIANA

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ABSTRACTThe use of plant stem betadin (Jatropha mulitifida Linn) to increase the number of thrombocyt in Mus musculusBackground: Jatropha multifida Linn has been used by the people of Bengkulu as an ornamental plant, some of people use as medicinal for a new wound. That is why known as betadin plants. Jatropha multifida Linn contain flavonoids compound. The aims of this study is to isolate the total flavonoids compound from stems of Jatropha multifida Linn, and then it was used to increase the number of thrombocyt.Methods: Stem Jatropha multifida Linn was isolated by EtOH (96%), the filtrate was evaporated using a rotary evaporator. Fifteen of healthy Mus musculus with 20-50 g, were grouped into 4; group 1 (P0) was treated by aquadest, group 2 (P1) was treated with 0.2 mL of palm oil, group 3 (P2) was treated with a dose of guava extract (0.028 g/kgBW), group 4 (P3) and (P4) were given total flavonoids of Jatropha multifida Linn stems in which each was given with a dose of 0.028g/kgBW and 0,056g/kgBW. After 24 hours of treatment, the thrombocyt changes owere counted under a microscope.Results: The rendement of flavonoids compound in the stem of Jatropha multifida Linn which can be isolated by EtOH is 4%. The flavonoids compound from Jatropha multifida Linn stems at a doses of 0.028 g/kgBW could increased the number of thrombocyt to 543.000/mm3 and at a 0.56 g/kgBW to 813.000/mm3.Conclusion: The flavonoids compoud from Jatropha multifida Linn stems at a doses of 0.028 g/kgBW and doses of 0.56 g/kgBWcould increased the number of thrombocyt at Mus musculus.Keywords: Jatropha multifida Linn, trombocyt, flavonoids, Mus musculusABSTRAKLatar belakang: Jatropha multifida Linn oleh masyarakat Bengkulu digunakan sebagai tanaman hias, sebagian masyarakat ada yang menggunakan sebagai tanaman untuk obat luka baru. Itulah sebabnya maka dikenal dengan tanaman betadin. Batang tanaman Jatropha multifida Linn mengandung senyawa flavonoid. Penelitian ini bertujuan untuk mengisolasi senyawa flavonoid total dari batang tanaman Jatropha multifida Linn, kemudian diujicobakan untuk melihat peningkatan jumlah trombosit pada Mus musculus.Metode: Batang tanaman Jatropha multifida Linn diisolasi dengan maserasi menggunakan EtOH (96%), filtrat diuapkanmenggunakan rotary evaporator. Lima belas Mus musculus sehat dengan berat 20-50 g, dikelompokkan menjadi 4 yaitu kelompok 1 (P0) diberi perlakuan secara oral dengan aquades, kelompok 2 (P1) diberi perlakuan secara oral dengan 0,2 mL minyak manis, kelompok 3 (P2) diberi perlakuan secara oral dengan ekstrak daun jambu biji dengan dosis 0,028 g/kgBB, kelompok 4 (P3) dan kelompok 5 (P4) diberi perlakuan secara oral dengan senyawa flavonoid total batang tanaman Jatropha multifida Linn masingmasingdengan dosis 0,028 g/kgBB dan 0,056 g/kgBB. Setelah 24 jam untuk setiap perlakuan, kenaikan jumlah trombosit dihitung dibawah mikroskop.Hasil: Rendemen flavonoid total dari batang tanaman Jatropha multifida Linn yang dapat diisolasi menggunakan EtOH sebesar 4%. Pemberian senyawa flavonoid total dari batang Jatropha multifida Linn secara oral pada Mus musculus dengan dosis 0,028 g/kgBB mampu meningkatkan jumlah trombosit sebesar 543.000/mm3 dan dosis 0,056 g/kgBB mampu meningkatkan jumlah trombosit sebesar 813.000/mm3.Simpulan: Pemberian senyawa flavonoid total dari batang tanaman Jatropha multifida Linn dengan dosis 0,028 g/kgBB dan 0,056 g/kgBB secara oral mampu meningkatkan jumlah trombosit pada Mus musculus, dan semakin tinggi dosis yang diberikan semakin tinggi kenaikan jumlah trombosit.

ANALISIS PENURUNAN KUALITAS MINYAK GORENG CURAH SELAMA PENGGORENGAN KERUPUK JALIN Wuri Marsigit; Budiyanto Budiyanto; Mukhsin Mukhsin
Jurnal Agroindustri Vol 1, No 2 (2011)
Publisher : BPFP Faperta UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agroindustri.1.2.55-62

Selama penggorengan kualitas minyak mengalami penurunan kualitas yang dipengaruhi oleh uap yang dilepaskan dari bahan yang digoreng, suhu penggorengan, lama pemanasan/penggorengan dan komposisi bahan yang digoreng. Indikator kerusakan minyak goreng dapat diamati dari perubahan sifat fisika-kimianya, antara lain bilangan asam, kandungan asam lemak bebas (ALB) dan titik asap. Penelitian ini bertujuan untuk menganalisa pola perubahan kualitas minyak goreng curah selama penggorengan kerupuk jalin pada suhu di atas 190 0C selama 4 jam. Rancangan penelitian yang digunakan pada penelitian ini yaitu minyak goreng dengan penambahan ulang dan pengaruh lama waktu penggorengan selama 4 jam. Dilakukan pengambilan sampel setiap 0,5 jam penggorengan. Data ditampilkan dalam bentuk grafik dan dianalisa secara deskriptif. Hasil penelitian menunjukkan, setelah penggorengan kerupuk jalin selama 4 jam pad suhu di atas 190 0C, pola perubahan kualitas minyak goreng curah terlihat meningkat tidak linier pada perubahan bilangan asam dan asam lemak bebas. Dilain pihak, pola perubahan kualitas minyak goreng curah terlihat menurun tidak linier pada titik asap. Peningkatan dan penurunan yang tidak linier ini disebabkan karena terjadi penambahan minyak baru setiap satu jam sekali yang berfungsi untuk menstabilkan minyak goreng baik secara kualitas maupun kuantitas. Berdasarkan pengukuran kandungan bilangan asam, asam lemak bebas dan titik asap, diketahui bahwa minyak goreng curah masih layak pakai adalah pada 40 kali penggorengan selama 2.5 jam dengan kerupuk jalin sebanyak 100 kg. Hal ini mengindikasikan bahwa kandungan bilangan asam 2.42 % masih di bawah batas maksimal yaitu 2.5 %.

Co-Authors ACENG RUYANI Ade Indriani Putri Alfia Novera Indah Esa Kasih Arina Fatharani Arsela Eko Listiono Bedah Rupaedah Bedah Rupaedah, Bedah Bhakti Karyadi Bhakti Karyadi BHAKTI KARYADI Bonodikun Bonodikun Candrawati, Emilia Candrawati, Emilia Chyntia Margareta Cici Romayanti Dapot Parulian Manurung Devi Silsia Devi Silsia Dewi Handayani Dhea Prasiwi Dian Kartika Sari Eko Swistoro Elvinawati Elvinawati Emi Hartati Emilia Candrawati Emilia Candrawati Endang Widi Winarni Endang Widi Winarni Ernis, Gustria Euis Nursa’adah Fahrurrozi, Fahrurrozi Fenny Andriani Fitri Yuwita Fuji Ramadenti Hadi Apriyoanda Hadi Apriyonda Henny Johan Herison, Catur Hermansyah Amir I Nyoman Candra I Nyoman Chandra Ilham Agus Saputra Jertadi Putri Dhani Kirent Arikhsa Putri Krisandini, Triana Lina Widawati M Lutfi Firdaus M. Farid M. Lutfi Firdaus M. Lutfi Firdaus Maya Wahyunarti Mayshah Purnamasari Megasari Megasari Meizul Zuki Mellyta Uliyadari Mina Sihite Hutasoit Muchammad Farid Mukhsin Mukhsin Muzanip Alperi Nur Wakidatul Khasanah Nurhamidah Nurhamidah Nurhamidah Nurhamidah Nurhamidah Nurhamidah Nurleli Nurleli Nurlia Latifah Nursaa'adah, Euis Nursaadah, Euis Pandu Imam Sudibyo Adib Pandu Imam Sudibyo Adib Pramesthi Regita Putri Putri Suci Asriani Rantika Khumairah Rasie Janika Reni Jumika Ridwan Yahya Rika Partika Sari Rina Elvia Rina Elvia Rina Elvia, Rina Rina Endriani Ririn Trinanda Rofiqa Asri Sari Puspita Ningsih Shiba Meike Indira Shinta Lestari Sipriyadi Sri Astuti Sumpono Sumpono Sumpono Sumpono Sumpono, Sumpono Suryadi Suryadi Theo Kuntara Tuti Maryana Tyas Sri Muryati Ulfah Anis Umaya Umi kalsum Wuri Marsigit Yenni Okfrianti Yohannes Adimar Marbun Yulia Suparti Zulman Efendi

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