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Jurnal Aplikasi Teknologi Pangan

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Published by Universitas Diponegoro

ISSN : 20897693 EISSN : 24605921 DOI : -

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Jurnal Aplikasi Teknologi Pangan aims to expose the results of fundamental and applied research in food and its related fields to scholars, students, and food applicants. The journal covers the fields of application of technology on food, i.e. biotechnology, functional food, food process, health, food related field on agribusiness and agro-technology.

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Articles 6 Documents

Search results for , issue "Vol 8, No 3 (2019): Agustus 2019" : 6 Documents clear

Karakteristik Fisikokimia Tepung Daluga (Cyrtosperma merkusii. (Hassk.) Schott) Hasil Modifikasi Fermentasi Bakteri Asam Laktat dan Heat Moisture Treatment (HMT) Didah Nur Faridah; Nestri Purnamasari; Sri Laksmi Suryaatmaja
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Daluga (Cyrtosperma merkusii. (Hassk.) Schott) adalah salah satu jenis tanaman umbi kaya karbohidrat yang berasal dari Kepulauan Siau, Manado, Sulawesi Utara. Kandungan pati daluga yang tinggi berpotensi sebagai bahan baku pembentukan pati resisten (Resistant starch/RS). Tujuan dari penelitian ini adalah meningkatkan kadar RS tepung daluga melalui modifikasi Heat Moisture Treatment/HMT dan fermentasi Bakteri Asam Laktat/BAL serta mengkaji pengaruh modifikasi terhadap sifat fisikokimia tepung daluga modifikasi. Penelitian terdiri dari 3 perlakuan antara lain HMT menggunakan oven (100 ̊C, 16 jam), autoklaf (121 ̊C, 60 menit), dan kombinasi fermentasi BAL dengan Lactobacillus plantarum BSL dan HMT. Berdasarkan hasil analisis, tepung daluga hasil modifikasi oven, autoklaf, dan Lactobacillus plantarum BSL + HMT memiliki kadar RS masing-masing sebesar 7,14; 8,81; 5,31% (db). Hasil modifikasi tepung daluga juga berpengaruh terhadap kadar serat pangan, amilosa, serta perubahan viskositas dan suhu gelatinisasi. Kesimpulannya, tepung daluga dengan modifikasi HMT dan fermentasi bakteri asam laktat dapat memberikan pengaruh yang bervariasi pada berbagai sifat fisikokimianya.Physicochemical Characteristics of Modified Daluga Flour (Cyrtosperma Merkusii. (Hassk.) Schott) by Lactic Acid Bacteria Fermentation and Heat Moisture TreatmentAbstractDaluga (Cyrtosperma merkusii. (Hassk.) Schott) is one of the tubers originated from the Siau Islands, Manado, and North Sulawesi. The starch contents of daluga which were quite and have the potency as raw materials for starch resistant (SR) formation. The objectives of this research were to increase the SR content of daluga flour, to obtain a modified flour with Lactic Acid Bacteria (LAB) fermentation and Heat Moisture Treatment/HMT of daluga flour and to examine the effect of HMT and LAB fermentation on physicochemical characteristics of daluga flour. The study consist of 3 treatments of HMT, i.e. oven (100°C, 16 hours), autoclave (121° C, 60 minutes), and combination of LAB fermentation by Lactobacillus plantarum BSL and HMT. The result showed the specific value of RS from oven, autoclaves and LAB treatment i.e. 7.14, 8.81, 5.31%, respectively. The results of modified daluga flour could affect dietary fiber, amylose contents, viscosity and gelatinization temperature. As conclusion, modified daluga flour with HMT treatment and fermentation might provide specific result on its physicochemical characteristics.

The Influence of Leaf Age, Oxidizing Pre-Treatment and Serving Temperature on Sensory Characteristics of Ampelgading Robusta Coffee Leaves Tea Kiki Fibrianto; Aswin Rizky Wardhana; Laila Yum Wahibah; Eka Shinta Wulandari
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

The cultivation of coffee plants produces leaf-waste which is only currently used for feed and fertilizer. Traditionally coffee leaves tea could be processed as “kopi kawa”, a popular tea-like beverage in West Sumatera, Indonesia. This research was aimed at characterizing the sensory profile of beverage made from Ampelgading Robusta coffee leaves by considering different leaves age, processing method, and serving temperature applying the Rate-All-That-Apply (RATA) method involving 111 consumer respondents. It was observed that the coffee leaves tea were sensorially dominated by green aroma and flavor, bitter taste, and astringent mouth-feel. The leaves age significantly affected 6 sensory attributes, i.e. sweet taste, sour taste, bitter taste, sweet flavor, earthy flavor, and woody flavor. Meanwhile the processing method (oxidized and non-oxidized pre-treatment) as well as serving temperature had no significant effect on the sensory perception of consumer although significant influences were recorded on the changing of total phenolic content, caffeine content, pH, and color parameters. As conclusion, sensory characteristic of Ampelgading robusta coffee leave tea was strongly affected by the age of leaf, regardless the pre-treatment process and serving temperature.

Optimasi Ekstraksi Berbantu Gelombang Ultrasonik pada Biji Melinjo Kerikil (Gnetum gnemon L., ‘Kerikil’) Menggunakan Response Surface Methodology Bambang Kunarto; Sutardi Sutardi; Supriyanto Supriyanto; Chairil Anwar
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Biji melinjo kerikil mengandung senyawa fenolik dan resveratrol sehingga berpotensi sebagai antioksidan, oleh karena itu perlu dilakukan ekstraksi. Metoda ekstraksi konvensional (maserasi, perebusan, refluxing) mempunyai kelemahan yaitu terjadinya kerusakan senyawa fenolik akibat reaksi oksidasi, hidrolisis dan ionisasi selama proses ekstraksi. Oleh karena itu, pada penelitian ini ekstraksi biji melinjo kerikil dilakukan menggunakan metode ekstraksi berbantu gelombang ultrasonik. Penelitian ini bertujuan untuk optimasi ekstraksi biji melinjo kerikil berbantu gelombang ultrasonik yang dilakukan pada berbagai waktu ekstraksi, suhu ekstraksi dan konsentrasi pelarut etanol. Surface response methodology digunakan untuk optimasi kondisi ekstraksi. Biji melinjo kerikil diekstrak menggunakan ultrasonic bath pada frekuensi 40 kHz dengan berbagai suhu (25, 30, 35, 40, 45oC), waktu ekstraksi (10, 20, 30, 40, 50 menit) dan konsentrasi pelarut etanol (40, 50, 60, 70 80%). Hasil penelitian menunjukkan bahwa kondisi optimum ekstraksi biji melinjo kerikil berbantu gelombang ultrasonik adalah pada suhu 30,18oC, waktu 33,01 menit dan konsentrasi pelarut etanol 71,04%. Pada kondisi ini, diperoleh yield ekstrak 18,41 ± 0,01%, total fenolik 11,26 ± 0,06 mg GAE/g, total flavonoid 533,70 ± 0,18 mg CE/100g, resveratrol 7,64 ± 0, 03%, IC50 sebesar 59,52 ± 0,04 ppm dan reducing power 76,31 ± 0,08%. Sebagai kesimpulan, optimasi ekstraksi biji melinjo kerikil berbantu gelombang ultrasonik menggunakan response surface methodology ini cukup baik karena nilai respon yang sebenarnya sesuai dengan nilai respon yang diprediksi.Melinjo kerikil seeds contain phenolic and resveratrol compounds so that it has the potential as an antioxidant, therefore extraction needs to be done. Conventional extraction methods (maceration, boiling, refluxing) have the disadvantage of devasting phenolic compounds due to oxidation, hydrolysis and ionization reactions during the extraction process. Therefore, in this study the extraction of melinjo kerikil seeds done by using the ultrasonic-assisted extraction method. The study aims to optimize ultrasonic-assisted extraction of melinjo kerikil seeds that be done at various extraction times, extraction temperatures and ethanol solvents concentrations. Response surface methodology was used to optimize experimental condition for extraction. Melinjo kerikil seeds were extracted by using ultrasonic bath at a frequency of 40 kHz with various temperatures (25, 30, 35, 40, 45oC), extraction time (10, 20, 30, 40, 50 minutes) and ethanol solvents concentrations (40, 50, 60, 70 80 %). The results showed that the optimum conditions for ultrasonic-assisted extraction of melinjo kerikil seeds were at a temperature of 30.18oC, a time of 33.01 minutes and an ethanol solvent concentration of 71.04%. In this condition, obtained the extract yield 18.41 ± 0.01%, total phenolic 11.26 ± 0.06 mg GAE/g, total flavonoids 533.70 ± 0.18 mg CE/100g, resveratrol 7.64 ± 0,03%, IC50 in the amount of 59.52 ± 0.04 ppm and reducing power 76.31 ± 0.08%. As a conclusion, the optimization ultrasonic-assisted extraction of melinjo kerikil seeds by using response surface methodology is quite good because the actual response value is in accordance with the predicted response value.

Pengaruh Lama Pemanasan terhadap Kualitas Kimia Wheat Pollard yang Berpotensi sebagai Prebiotik Cahya Setya Utama; Zuprizal Zuprizal Zuprizal; Chusnul Hanim; Wihandoyo Wihandoyo
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Penelitian bertujuan mengkaji pengaruh lama pemanasan wheat pollard dengan autoclave untuk mendapatkan monomer-monomer yang berpotensi sebagai prebiotik. Penelitian menggunakan rancangan acak lengkap pola searah dengan 4 perlakuan dan 4 ulangan. Parameter yang diamati adalah komponen proksimat (kadar air, abu, lemak kasar, protein kasar, serat kasar dan bahan ekstrak tanpa nitrogen atau BETN), komponen fiber (acid detergent fibre atau ADF, neutral detergent fibre atau NDF, selulosa, hemiselulosa, lignin), gross energi, mannosa, arabinosa, glukosa, sukrosa, rafinosa, amilosa, amilum, amilopektin, resistant starch dan profil wheat pollard melalui scanning electron microscope (SEM). Hasil penelitian menunjukkan bahwa terdapat pengaruh perlakuan yang nyata (p<0,05) terhadap kadar air, abu, protein kasar, serat kasar, BETN, NDF, hemiselulosa, lignin, selulosa, gross energi, rafinosa, glukosa, arabinosa, sukrosa, amilosa, amilum, amilopektin, resistant starch namun tidak ada pengaruh yang nyata (p>0,05) pada lemak kasar, ADF dan manosa. Indikator wheat pollard sebagai prebiotik terlihat dari peningkatan kadar rafinosa, arabinosa dan resistant starch berturut-turut sebesar 0,72 menjadi 3,95%; 0,51 menjadi 1,04%; 0,51 menjadi 1,04% dan 5,28 menjadi 14,15%. Kesimpulan penelitian ini adalah wheat pollard yang dipanaskan selama 15 menit dapat memberikan komposisi terbaik sebagai prebiotik.Effect of Heating Time on the Chemical Quality of Wheat Pollard as a Prebiotic Potential AgentAbstractThis study was done to examine the heating time of wheat pollard to obtain potentially prebiotic monomers. The study used a completely randomized design with 4 treatments and 4 replications. The observations were water content, ash, crude fat, crude protein, crude fiber, extract without nitrogen, acid detergent fiber or ADF, neutral detergent fiber or NDF, cellulose, hemicellulose, lignin, gross energy, mannose, arabinose, glucose, sucrose, raffinose, amylose, starch, amylopectin, resistant starch and wheat pollard profile through scanning electron microscope (SEM). The results showed that there was a significant treatment effect (p<0.05) on moisture, ash, crude protein, crude fiber, extract without nitrogen, NDF, hemicellulose, lignin, cellulose, gross energy, raffinose, glucose, arabinose, sucrose, amylose, starch, amylopectin, resistance starch but not significant effect (p>0.05) of treatments in crude fat, ADF and mannose. The indicator of wheat pollard as a prebiotic was able to be seen from an increase in raffinose, arabinose and resistance starch levels from 0.72 to 3.95%; 0.51 to 1.04%; 0.51 to 1.04%, and 5.28 to 14.15%, respectively. As conclusion, heating time for 15 minutes might provide a function to turn wheat pollard into prebiotic agent.

Pengaruh Metode Pengeringan terhadap Aktivitas Antioksidan Daun Alpukat I Wayan Rai Widarta; Anak Agung Istri Sri Wiadnyani
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Daun alpukat mengandung komponen bioaktif yang tinggi sehingga dapat dimanfaatkan sebagai sumber antioksidan alami. Tujuan dari penelitian ini adalah mendapatkan metode pengeringan yang tepat sehingga menghasilkan ekstrak daun alpukat dengan aktivitas antioksidan yang tinggi. Daun alpukat baik yang muda maupun yang tua dikeringkan dengan tiga metode pengeringan yaitu dijemur dibawah sinar matahari, dikeringanginkan dalam ruangan, dan dikeringkan dengan oven. Kualitas daun kering kemudian dianalisis aktivitas antioksidan, kadar air, total fenol, total flavonoid, dan total tanin. Hasil penelitian menunjukkan bahwa daun tua yang dikeringkan dengan menggunakan oven pada suhu 40˚C selama 24 jam menghasilkan aktivitas penghambatan radikal bebas tertinggi yaitu 19,83% dengan kadar air 7,54%, total fenol 6,42 mg/100 g ekstrak, total flavonoid 12,07 mg/100 g ekstrak, dan total tanin 2,48 mg/100 g ekstrak. Kesimpulannya, metode pengeringan dapat memberikan dampak terhadap kadar senyawa bioaktif ekstrak daun alpukat dan aktivitas antioksidannya.Effect of Drying Methods on the Antioxidant Activity of Avocado LeavesAbstractAvocado leaves contain high bioactive components that may be used as a source of natural antioxidants. The purpose of this study was to obtain proper drying method to produce avocado leaf extract with high antioxidant activity. Avocado leaves, both young and old, were dried with three drying methods, which were dried in the sun, room, and oven. Quality of leaves was then measured for antioxidant activity, moisture, total phenol, total flavonoid, total tannins. The results showed that old leaves dried using an oven at 40˚C for 24 hours resulted in the highest radical scavenging activity of 19.83% with 7.54% moisture content, 6.42 mg/100 g extract of total phenol, 12.07 mg/100 g extract of total flavonoid, and 2.48 mg/100 g extract of total tannins. In conclusion, the drying methods might produced specific antioxidant activities.

Ekstrak Etanol Daun Belimbing Wuluh (Averrhoa bilimbi) sebagai Antioksidan dan Antiinflamasi Hasim Hasim; Yupi Yulianita Arifin; Dimas Andrianto; Didah Nur Faridah
Jurnal Aplikasi Teknologi Pangan Vol 8, No 3 (2019): Agustus 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Belimbing wuluh merupakan tanaman jenis buah dan obat tradisional. Tanaman belimbing wuluh sudah sering dimanfaatkan masyarakat salah satunya untuk mengobati penyakit seperti batuk dan radang rektum. Tujuan penelitian ini adalah menguji senyawa fitokimia, menganalisis kandungan total fenolik dan flavonoid, serta aktivitas antioksidan dan antiinflamasi secara in vitro pada ekstrak etanol daun belimbing wuluh. Metode yang dilakukan pada penelitian ini adalah ekstraksi daun belimbing wuluh, skrining fitokimia, perhitungan total fenol dan flavonoid, uji aktivitas antioksidan, dan uji aktivitas antiinflamasi. Senyawa fitokimia yang terkandung pada ekstrak etanol daun belimbing wuluh adalah saponin, tanin, steroid, flavonoid, dan alkaloid. Kandungan total fenolik dan flavonoid ekstrak etanol daun belimbing wuluh secara berturut-turut sebesar 39,03 dan 97,28 µg QE/mg. Ekstrak etanol daun belimbing wuluh memiliki aktivitas antioksidan yang tergolong sangat kuat, sementara aktivitas antiinflamasinya terutama ditunjukkan pada konsentrasi ekstrak 200 µg/ ml, memiliki nilai persen inhibisi hemolisis yang paling tinggi. Kesimpulannya, ekstrak etanol daun belimbing wuluh dapat menjadi salah satu sumber antioksidan dan antiinflamasi alami.Ethanol Extracts of Averrhoa Bilimbi Leaf Demonstrated Antioxidative and Anti-inflammatory ActivityAbstractAverrhoa bilimbi, a fruit-bearing plant, has been traditionally used for medicinal purposes such as treatment of cough and rectal inflammation. In this current work, ethanol extract of Averrhoa bilimbi leaf was analyzed, with regard to phytochemical composition, i.e. total phenolic, and flavonoid, antioxidant activity, and in vitro antiinflammation activity. Extraction of carambola leaves, phytochemical screening, total phenolic and flavonoid contens, assay of antioxidant activity, and assay of anti-inflammatory activity were done in this research. As a result, the leaf extract positively contained some phytochemical compounds, i.e. saponin, tannin, steroid, flavonoid, and alkaloid. Furthermore, total phenolic and flavonoid of the leaf extract was found at 39.03 and 97.28 µg QE/mg extract, respectively. Additionally, antioxidant activity of the leaf extract was classified as very strong, while its anti-inflammatory feature at extract concentration of 200 µg/ml exhibited the highest inhibition of hemolysis. In summary, the ability of Averrhoa bilimbi leaf ethanol extracts to act as antioxidative and anti-inflammatory agents was determined and this may open the use for natural antioxidant and anti-inflammatory agents.

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Contact Name
Ahmad Nimatullah Al-Baarri, PhD

Contact Email
redaksi@ift.or.id

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redaksi@ift.or.id

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Kota semarang,

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