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Jurnal Teknologi Pertanian

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Published by Universitas Brawijaya

ISSN : 14115131 EISSN : 25282794 DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Computer Science & IT

Jurnal Teknologi Pertanian diterbitkan oleh Fakultas Teknologi Pertanian Universitas Brawijaya untuk penyebarluasan hasil penelitian yang dilakukan oleh para peneliti dari dalam dan luar Fakultas Teknologi Pertanian Universitas Brawijaya. Jurnal Teknologi Pertanian terbit tiga kali dalam setahun, memuat tulisan hasil penelitian yang termasuk dalam lingkup disiplin ilmu pengetahuan yang terkait dengan Ilmu-ilmu Teknologi Pertanian guna menunjang pengembangan ilmu pengetahuan dan teknologi serta pembangunan nasional.

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Articles 578 Documents

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EFFECT OF PURPLE SWEET POTATO (Ipomoea batatas) EXTRACT AND FERMENTATION TIME IN WATER KEFIR CHEMICAL PROPERTIES Latifa Putri Aulia; Sarah Febrian Perdaningtyas; Titia Muflihah; Tanalyna Hasna
Jurnal Teknologi Pertanian 6th International Conference on Green Agro-industry and Bioeconomy (ICGAB) July 2022 - Special Issue
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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As a bacteria starter, water kefir is commonly made from water, sugar, dried or fresh fruits, and kefir grains. Purple sweet potato (PSP) contains natural anthocyanins and carbohydrates as colouring agents and carbon sources in water kefir drinks production. This study determines the effect of the PSP extract addition, fermentation time, and their interaction in the water kefir. The study was based on chemical properties such as total anthocyanins, antioxidant activity IC50, total acid, total sugar, degree of acidity (pH), and total dissolved solids (TDS). The method used Factorial Randomized Group Design with 0%, 10%, 30%, and 50% (v/v) of addition of PSP extract and 0, 24, and 48 hours of fermentation time as factors. The results were analyzed using Analysis of Variance (ANOVA) with a 5% confidence interval. The results showed that PSP extract addition and fermentation time significantly affected all chemical properties analysis and their interaction. The best treatment was retrieved with 50% PSP extract addition and 48 hours of fermentation time with total anthocyanin 193.197 ± 3.255 ppm, antioxidant activity IC50 460.620 ± 20.973 ppm, total acid 10.429 ± 0.371%, total sugar 1.356 ± 0.058%, pH 2.3 ± 0.058, and TDS 2.1 ± 0.2 ºBrix

THE EFFECT OF EXTRACTION TIME ON THE PHYSICOCHEMICAL CHARACTERISTICS AND ANTIOXIDANT POTENTIAL OF AVOCADO WASTE OIL PRODUCED BY THE SOXHLETATION METHOD Dyah Widowati; Artini Pangastuti; Setyaningrum Ariviani
Jurnal Teknologi Pertanian 6th International Conference on Green Agro-industry and Bioeconomy (ICGAB) July 2022 - Special Issue
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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The avocado peels and seeds are potentially produced into vegetable oil through the soxhletation method. The soxhlet extracted oil characteristics are influenced by extraction time. The proper extraction time generated the oil standard characteristics. This research aimed to determine the effect of extraction time on yield, physicochemical characteristics, and antioxidant potential of avocado waste oil. The research was conducted through the extraction and characterization of avocado waste oil. This study used a Completely Randomized Design with one factor (extraction time: 4, 5, and 6 hours). An increase in extraction time caused an increase in yield and specific gravity, but the hydrolytic-oxidative stability and antioxidant potential were decreased. The 4 hours of extraction time was selected as the best treatment. The characteristics of avocado peel oil extracted for 4 hours were 6.25% of yield, 0.961 g/mL of specific gravity, 0.27% of free fatty acids (FFA), 0.44 mgKOH/g of acid value (AV), 0.98 mEq/kg of peroxide value (PV), 4.63 mEq/kg of p-Anisidine value (PAV), 8.86 mEq/kg of total oxidation (TOTOX), 68.786% of radical scavenging activity, and 523.96 mgTr/g of reducing power. The characteristics of avocado seed oil extracted for 4 hours were 4.59% of yield, 0.973 g/mL of specific gravity, 0.23% of FFA, 0.33 mEq/kg of AV, 0.48 mEq/kg of PV, 3.77 mEq/kg of PAV, 5.05 mEq/kg of TOTOX, 53.95% of radical scavenging activity, and 438.05 mgTr/g of reducing power. Altogether, avocado waste oil characteristics in each extraction time met the vegetable oil requirements and potentially developed in food industries.

ANALYSIS OF TOMATO DATES BUSINESS DEVELOPMENT STRATEGIES USING BUSINESS MODEL CANVAS APPROACH AND SWOT-ANP Talitha Dea Azzaria; Wendra Gandhatyasri Rohmah; Panji Deoranto; Riska Septifani; Dhita Morita Ikasari
Jurnal Teknologi Pertanian 6th International Conference on Green Agro-industry and Bioeconomy (ICGAB) July 2022 - Special Issue
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Micro, Small, and Medium Enterprises (MSMEs) play an important role in developing the national economy. CV Firman SK is one of the MSMEs engaged in agroindustry located in Malang regency. CV Firman SK faced a revenue decline problem because of the covid-19 pandemic. Tomato dates are one of the superior products that experienced the most significant decrease in revenue compared to other products, which is a 50% revenue decrease. This research aims to determine the priority order of business development strategy. The methods used in this study are the BMC approach and integration of SWOT-ANP. The BMC approach maps the business model of CV Firman SK. The business model will be the basis for establishing alternative strategies using SWOT analysis. SWOT methods are integrated with ANP methods to make accurate priorities of business development strategies. The result showed that the highest priority and most recommended alternative strategy is the SO1 strategy, with a score of 0.350. Elements of BMC that need to be improved based on business development alternative strategies are channels, key partnerships, and value propositions. CV Firman SK is advised to implement a proposed business development strategy based on the order of the most prioritized strategies.

DETERMINATION OF RISK MINIMIZATION STRATEGY FOR HERBAL DRINK PRODUCTION WITH GMP APPROACH USING SCORING AND AHP Ratining Indah Wardani; Imam Santoso; Riska Septifani
Jurnal Teknologi Pertanian 6th International Conference on Green Agro-industry and Bioeconomy (ICGAB) July 2022 - Special Issue
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Herbal drinks such as herbs have become part of the culture in Indonesia. The herbal plants processed into herbal drinks include bilimbi fruit (Averrhoa bilimbi L.) and secang (Caesalpinia sappan L.). This study aims to determine the risk minimization strategy in producing herbal drinks in CV XYZ by analyzing 14 aspects of Good Manufacturing Practices (GMP) using a scoring form and the Analytical Hierarchy Process (AHP) method. The scope of GMP in this study orients to how to produce good processed food. Determination of risk minimization strategy using the Analytical Hierarchy Process (AHP) method. The assessment results in applying GMP in CV XYZ using scoring calculation gotten three aspects with the highest deviation, “the sufficient qualify category", i. e. the building aspect (78.39%), storing (78.47%), and controlling (78.65%). These results as the base for arranging the risk minimization strategy with some criteria and alternatives using AHP calculation. The priority criteria for risk minimization strategies are the effectiveness level (0.608), the easiness of applying (0.313), and cost (0.079). Then, three priorities of alternative risk minimization for CV XYZ based on the global weight are the repairing of ventilation design (0.323) by adding ventilation in the production room, screens for dust filters that can be easily removed, final product storage separation (0.228) by placing materials or products that have a strong odor and have the potential to affect the final product in a separate room, making SOPs for the production process (0.209).

OPTIMASI PROSES PENAMBAHAN KONSENTRASI PUREE SIRSAK (Annona muricata L.) DAN MARGARIN TERHADAP KARAKTERISTIK MUFFIN DENGAN RESPONSE SURFACE METHODOLOGY
Jurnal Teknologi Pertanian Vol. 22 No. 3 (2021)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

ABSTRAKÂ Muffin merupakan produk bakeri yang merupakan jenis semi sweet cake dan Â umumnya bukan merupakan produk sumber serat. Buah sirsak dapat ditambahkan untuk meningkatkan kadar serat kasar pada produk muffin. Namun, penambahan serat dan pengurangan margarin dapat mempengaruhi kualitas muffin. Tujuan penelitian ini adalah untuk mendapatkan konsentrasi puree buah sirsak dan margarin optimum untuk menghasilkan muffin dengan volume pengembangan terbaik, densitas, dan baking loss terendah serta kadar serat kasar tertinggi. Metode yang digunakan adalah Response Surface Methodology dengan desain rancangan Central Composite Design dua faktor yaitu konsentrasi puree buah sirsak dan margarin. Batas minimum dan maksimum konsentrasi penambahan puree sirsak dan margarin berturut-turut adalah 15% sampai 70% (per berat tepung terigu) dan 10% sampai 45% (per berat tepung terigu). Muffin dengan penambahan puree sirsak 0% digunakan sebagai muffin kontrol. Muffin optimum dianalisa fisikokimia dan uji hedonik. Hasil optimum didapatkan konsentrasi puree buah sirsak 15% dan margarin 45% per berat tepung dengan volume pengembangan 40,74%, densitas 0,69 g/ml, baking loss 13,04%, dan kadar serat kasar 2,49%. Hasil optimasi menghasilkan muffin optimum dengan kadar serat kasar lebih tinggi daripada muffin kontrol. Hasil uji hedonik menunjukkan muffin optimum memiliki nilai rerata lebih tinggi dari muffin kontrol pada parameter warna, aroma, pori, tekstur, rasa, dan kesukaan keseluruhan.Â Â ABSTRACTÂ Muffin generally is not a fiber source. Soursop has a moderately high fiber content that could increase fiber content of muffins. Fiber addition dan margarine concentration in muffins composition surely will affect the quality. The objective of this study is to find out the optimum concentration of soursop puree and margarine addition to obtain muffin with the highest fiber content but with acceptable quality. The research established with Response Surface Methodology method using Central Composite Design with 2 factors which are concentration of soursop puree and margarine. Minimum and maximum concentration used for soursop puree and margarine are 15-70% (flour based) and 10-45% (flour based). Optimum result obtained from the program is soursop puree content and margarine content approximately 15% and 45% (flour based) with 40,74% expansion volume, 0,69 g/ml density, 13,04% baking loss and 2,49% crude fiber content. Optimum muffin had higher crude fiber content than controlled muffin. Hedonic test also showed that optimum muffin had higher average score in color, flavour, pore, texture, taste, overall liking parameter. Â

EFEKTIVITAS DAUN AFRIKA (Vernonia amygdalina Del) DALAM MEREDUKSI KANDUNGAN FORMALIN DAN KUALITAS FILLET IKAN NILA (Oreochromis niloticus) Eva Mayasari; Kartini Kartini; Maherawati Maherawati; Suko Priyono
Jurnal Teknologi Pertanian Vol. 23 No. 1 (2022)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Formalin sebagai bahan pengawet pada ikan umum digunakan untuk memperpanjang masa simpan, namun penggunaan formalin berdampak buruk bagi kesehatan. Daun Afrika memiliki senyawa saponin yang mampu mereduksi kadar formalin. Penelitian ini bertujuan mengetahui efektivitas perendaman ekstrak daun Afrika (Vernonia amygdalina Del) untuk mereduksi kandungan formalin pada fillet ikan Nila (Oreochromis niloticus). Penelitian ini menggunakan Rancangan Acak Lengkap dengan satu faktor yaitu konsentrasi ekstrak daun Afrika (0%, 1%, 2%, 3%, 4%, dan 5%), dengan 3 kali ulangan. Identifikasi saponin pada ekstrak daun Afrika dianalisis secara kualitatif menggunakan metode Forth. Fillet ikan Nila direndam selam 30 menit ke dalam ekstrak daun Afrika pada masing-masing konsentrasi. Penurunan kadar residu formalin diuji secara kuantitatif menggunakan metode pereaksi Schiff. Hasil menunjukkan bahwa ekstrak daun Afrika pada konsentrasi 1%, 2%, 3%, 4%, 5% teridentifikasi senyawa saponin. Perendaman fillet ikan Nila berformalin ke dalam ekstrak daun Afrika efektif dan berpengaruh positif terhadap reduksi kadar formalin. Konsentrasi ekstrak daun Afrika 5% memiliki kadar formalin terendah sebesar 0,73 mg/Kg masih di bawah ambang batas International Program on Chemical Safety sebesar 1,5–14 mg/Kg, demikian juga kadar abu sebesar 1,04% sesuai dengan mutu ikan segar Standar Nasional Indonesia 01-2354.1-2006 yaitu kurang dari 2%. Formalin used as preservative fish is generally carried out to extend shelf life. However, the use of formalin has an adverse effect on health. Saponin compounds contained in African leaves are able to reduce formalin content. This study aims to determine the effectiveness of immersing African leaf (Vernonia amygdalina Del) extract to reduce the formalin content in tilapia (Oreochromis niloticus) fillets. The experimental design used a completely randomized design with one factor, the concentration of African leaf extract (0%, 1%, 2%, 3%, 4%, and 5%), with three-time replications. Saponin identification in African leaf extract was analyzed qualitatively using the Forth method. Tilapia fillets were immersed for 30 minutes into the African leaf extract at each concentration. The reduction in formalin content was tested quantitatively by Schiff reagent method. The results showed that the African leaf extract at a concentration of 1%, 2%, 3%, 4%, 5% identified saponin compounds. Immersion of formalin tilapia fillets into African leaf extract was effective and significantly affects reducing formalin content. The concentration of 5% African leaf extract had the lowest formalin content of 0,73 mg/Kg below the threshold of International Program on Chemical Safety 1,5-14 mg/Kg, as well as ash content of 1,04% according to the quality of fresh fish Indonesian National Standard 01-2354.1-2006 is less than 2%.

RED ONION (Allium ascalonicum) PEEL EXTRACT AS A NATURAL SOURCE OF ANTIOXIDANTS TO ENHANCE THE OXIDATION STABILITY OF REFINED BLEACHED DEODORIZED PALM OIL (RBDPO) Destia Ayu Prameswari; Dela Retno Maryuni; Saffarina Dini Astari; Salsabila Permata Sari; Desiana Nuriza Putri
Jurnal Teknologi Pertanian Vol. 23 No. 1 (2022)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

The repeated use of cooking oil can trigger chemical reactions that cause the cooking oil to be unstable to heat. Red onion peel may be an antioxidant because it contains flavonoid compounds, polyphenols, saponins, and alkaloids that scavenge free radicals. This study aims to prove the use of natural antioxidant concentrations of onion peel. This study used a completely randomized design (CRD) consisting of 5 treatments of onion peel extract, namely 3% (P1), 6% (P2), 9% (P3) 12% (P4), without treatment (P-), and the addition of 0,1% BHT (P+) with consecutive times. The ability of antioxidant of onion peel extract is known to be able to maintain the stability of cooking oil compared to an antioxidant synthetic BHT. Peroxide in extract oil 9% (6.65 meq/kg), Total Oxidation in extract oil 9% (15.92 meq/kg), P-anisidine in extract oil 3% and 9% (3.54 meq/kg) /kg and 3.92 meq/kg) and the iodine value of the extract oil 3%, and 9% (21.41 mg iodine/g and 20.81 mg iodine/g). It was found that natural antioxidants of onion peel extract showed better primary oxidation inhibition ability than synthetic antioxidants BHT and among the five types of antioxidant concentrations, antioxidants from onion peel extract 9% showed the best oxidation inhibition ability. So that it can be obtained that the addition of onion peel extract is used as a natural antioxidant to maintain the stability of the oil against heat

PENGARUH TRIMMING DAN PENGEMPAAN TERHADAP KUALITAS DAN DAYA SIMPAN CABAI RAWIT MERAH (Capsicum frutescens L.) DALAM BENTUK CABAI KERING DAN CABAI BUBUK Yul Harry Bahar; Annisa Nur Ichniarsyah
Jurnal Teknologi Pertanian Vol. 23 No. 1 (2022)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Cabai merupakan komoditas utama dan salah satu fokus kegiatan pembinaan pertanian, karena sangat berpengaruh pada fluktuasi harga dan inflasi. Petani dan pelaku usaha sudah berhasil dalam teknologi produksi, akan tetapi aspek penanganan pascapanen dan pengolahan hasil masih tertinggal. Penelitian ini menjawab permasalahan tersebut dengan menggali teknologi tepat guna untuk mempercepat proses penanganan pascapanen cabai rawit merah (Capcicum frutescens L.) dengan tetap mempertahankan kualitas produk dan memperpanjang waktu penyimpanan produk. Penelitian ini secara umum dilakukan untuk meningkatkan penanganan pascapanen cabai rawit merah, dengan tujuan khusus adalah mempelajari pengaruh perlakuan trimming terhadap kualitas produk cabai kering dan cabai bubuk, mempelajari pengaruh perlakuan pengempaan terhadap kualitas produk cabai kering dan cabai bubuk, serta membandingkan keadaan dan perubahan kualitas dan daya simpan dengan adanya perlakuan trimming dan pengempaan. Penelitian dilakukan di Kampus Polbangtan Bogor, di Laboratorium Pascapanen Hasil Pertanian. Perlakuan pada penelitian yaitu proses trimming dan tanpa trimming, pengempaan dan tanpa pengempaan. Parameter yang diamati adalah kebusukan, warna, aroma, dan rasa yang dilakukan seminggu sekali selama sepuluh minggu. Pengamatan dilakukan melalui pengukuran dan uji organoleptik (scoring), pengolahan data hasil pengamatan dilakukan melalui uji-T. Hasil penelitian menunjukkan bahwa tanpa perlakuan trimming ternyata tidak berpengaruh terhadap kualitas produk cabai rawit merah kering dan bubuk, tambahan perlakuan pengempaan pada tahapan pascapanen dapat mempercepat proses pengeringan tanpa mengurangi kualitas produk, sehingga memberi keuntungan positif pada penanganan pascapanennya, dan daya simpan dan kualitas cabai rawit merah kering lebih baik dan lebih lama dari pada cabai rawit bubuk. Chili is one of main agricultural produces and become one of the focuses in agricultural development due to its important effect on price fluctuation and inflation. Overall, the production technology applied by farmers and agri-preuneurs were successful. Unfortunately, in terms of postharvest handling and processing aspects have not done well. This research was to answer these problems by exploring the appropriate technology to accelerate the postharvest handling process of cayenne pepper (Capsicum frutescens L.) by maintaining product quality and shelf-life. Research objectives were to study the effect of trimming on postharvest handling to the quality of dry chili and chili powder, to study the effect of pressing on the postharvest handling to the quality of dry chili and chili powder, and to study the effect of trimming and pressing on postharvest handling to the quality and durability (shelf life) of dry chili and chili powder. This research was conducted in Postharvest Handling Laboratory of Polbangtan Bogor, with the treatments are; with and without trimming process as well as pressing and without pressing process. Several parameters were observed every week along 10 weeks, such as deterioration, color, smell, and taste. The data were collected through measurement and organoleptic test (scoring) and analyzed using the t-Test. It can be concluded that; without trimming treatment wase not affected to the quality of dry chili and chili powder, by adding pressing treatment on postharvest handling rising some advantages because it could speed up the drying process without reducing the quality of the product, the durability and quality of dried chili was better than powder chili.

OPTIMASI PROSES PENGERINGAN TERHADAP AKTIVITAS ANTIOKSIDAN BUNGA TELANG (Clitoria ternatea) MENGGUNAKAN METODE RESPON PERMUKAAN Rizal Anwar Fauzi; Asri Widyasanti; Sophia Dwiratna Nur Perwitasari; Siti Nurhasanah
Jurnal Teknologi Pertanian Vol. 23 No. 1 (2022)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Bunga telang (C. ternatea) diidentifikasi mengandung senyawa bioaktif yang berpotensi menjadi sumber antioksidan alami namun mudah terdegradasi oleh suhu tinggi. Tujuan penelitian ini yaitu mengetahui model matematis dan kombinasi suhu dan waktu pengeringan yang menghasilkan bunga telang kering dengan kadar air, rendemen dan aktivitas antioksidan paling optimum. Pengering yang digunakan yaitu food dehydrator dengan suhu 45 °C hingga 65 °C serta waktu 4 hingga 6 jam. Metode penelitian ini yaitu metode eksperimen dengan optimasi menggunakan Response Surface Methodology tipe CCD pada aplikasi Design Expert 11. Parameter yang dianalisis selain respon pada RSM yaitu kelarutan bubuk dan warna seduhan bunga telang kering. Kondisi pengeringan optimum yang diberikan RSM diperoleh pada pengeringan dengan suhu 64,46 °C selama 5,95 jam. Diperoleh nilai hasil dari validasi aktivitas antioksidan 159,75 ppm (kategori sedang), kadar air 4,33%, kelarutan 63,09%, rendemen 8,44%, L* 41,39, a* -24,18, b* -18,39, kromatisitas warna 30,23, dan Hue 216,88 (Blue green). Persamaan matematis aktivitas antioksidan didapatkan Y = 2630,202 – 62,236 A – 140,078 B – 4,171 AB + 0,707 A2 + 28,864 B2, dengan Y adalah aktivitas antioksidan (ppm), A adalah suhu (°C), dan B adalah waktu (jam). Penelitian ini membuktikan bahwa kombinasi suhu dan waktu pengeringan berpengaruh pada aktivitas antioksidan bunga telang kering. Butterfly pea (C.ternatea) was identified to contain bioactive compounds that have the potential as a source of natural antioxidants but are easily degraded by high temperatures. The purpose of this research was to determine the mathematical model and combination temperature and dry time produces C.ternatea dry with the most optimum moisture content, yield and antioxidant activity. The dryer used was a food dehydrator with a temperature of 45 °C to 65 °C and a time of 4 to 6 hours. This research method was experimental research with optimization using Response Surface Methodology type CCD on Design Expert 11. Parameters analyzed in addition to the response in RSM were powder solubility and steeping color of dried C.ternatea. The most optimum dry conditions were given RSM obtained at a temperature of 64,46 °C for 5,95 hours. The results obtained from the validation of antioxidant activity 159.75 ppm (medium category), water content 4.33%, solubility 63,09%, yield 8,44%, L* 41,39, a* -24,18, b* -18,39, chroma 30,23, and Hue 216,88 (Blue-green). The mathematical equations for antioxidant activity was Y = 2630,202 – 62,236 A – 140,078 B – 4,171 AB + 0,707 A2 + 28,864 B2, Y: antioxidant activity (ppm), A: temperature (°C), and B: time (hours). This study proved that the combination of temperature and time affects the antioxidant activity of dried C.ternatea.

PENGARUH SUHU DAN LAMA PEMBEKUAN TERHADAP KUALITAS NASI SORGUM INSTAN Hesti Ramdayani; Erni Sofia Murtini
Jurnal Teknologi Pertanian Vol. 23 No. 1 (2022)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Biji sorgum berpotensi untuk menggantikan beras sebagai makanan pokok karena kemiripan kandungan nutrisinya. Namun, diperlukan waktu yang cukup lama untuk memasak biji sorgum. Nasi sorgum instan dikembangkan untuk mempercepat penyajian dan juga untuk memperpanjang umur simpan. Suhu dan waktu pembekuan merupakan tahapan penting dalam proses instanisasi nasi sorgum. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh suhu dan lama pembekuan terhadap karakteristik nasi sorgum instan. Penelitian ini menggunakan Rancangan Acak kelompok faktorial. Faktor pertama menggunakan suhu pembekuan -4, -12, dan -20 °C dan faktor kedua lama pembekuan yaitu 12, 18, dan 24 jam. Suhu dan lama pembekuan berpengaruh nyata terhadap karakteristik kimia dan fisik nasi sorgum instan yaitu diperoleh. Perlakuan terbaik didapatkan pada produk dengan suhu pembekuan -20 °C dan lama pembekuan 24 jam. Karakteristik produk nasi sorgum instan terbaik yaitu kadar air 61,62%, kadar abu 0,18%, kadar protein 5,40%, kadar lemak 2,27%, kadar karbohidrat 30,53%, waktu rehidrasi 4,18 menit, daya serap air 157,28%, rendemen 95,33%, hardness 77,2 g, densitas kamba 0,48 g/ml, nilai kecerahan (L*) 43,13, kemerahan (a*) 2,33, dan kekuningan (b*) 8,43 Sorghum grain has the potential to substitute rice as a staple food due to the similarity of their nutritional composition. However, the cooking time of sorghum grain is quite long. Instant sorghum is developed to shorten cooking time and to extend shelf life. The freezing temperature and duration are critical stages in the manufacture of instant sorghum. The study aimed to observe the effect of freezing temperature and duration on the characteristics of instant sorghum. The study followed the Randomized block design (RBD), two factors: freezing temperatures (-4, -12, and -20 °C) and freezing durations (12, 18, and 24 h). Freezing temperature and time significantly affected the chemical and physical characteristics of instant sorghum. The freezing temperature of -20 °C and freezing duration of 24 h made up the best treatment. The best instant sorghum contained moisture 61.62%, ash 0.18%, protein 5.40%, fat 2.27%, carbohydrate 30.53%. It had rehydration time 4.18 min, water absorption 157.28%, yield 95.33%, hardness 77.2 g, bulk density 0.48 g/ml, brightness value (L*) 43.13, redness (a*) 2.33, and yellowness (b*) 8.43

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Home Page

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Editorial Address Jl. Veteran Malang 65145 Indonesia

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Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
jurnal.teknologi.pertanian@gmail.com

Editorial Address
Jl. Veteran Malang 65145 Indonesia

Location
Kota malang,

Jawa timur

INDONESIA