Jurnal Aplikasi Teknologi Pangan
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Ekstrak Etanol Daun Belimbing Wuluh (Averrhoa bilimbi) sebagai Antioksidan dan Antiinflamasi
Full text linkBelimbing 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
Development of Mocaf-Wheat Noodle Product with the Addition of Catfish and Egg-White Flours as an Alternative for High-Animal-Protein Noodles
Full text linkThis study aimed to determine the best formula and chemical dan sensory properties of noodles made from mocaf-wheat flour supplemented with catfish and egg-white flours. The factorial randomized trial was used in this experiment. The treatment factors consisted of the types of supplementary flour i.e. catfish flour (T1) and egg white flour (T2). These supplementary flour was applied to the mocaf and wheat flour of 70:30 as follows 5, 10, 15, and 20% (w/w) and assigned as P1, P2, P3, and P4. Chemical properties (water content, total fat, total protein, carbohydrate, and ash contents) and sensory properties were then analyzed. Hedonic test was performed to determine the consumer’s acceptance level of 15 semi-trained panelists. Result showed that the interaction between the two treatments (TxP) had no significant effect on the five chemical variables, while combination of the two treatments (TxP) only had a significant effect on the texture of mocaf-wheat noodles and had no significant effect on other variables. Noodle with the treatment of egg white flour supplementation had higher protein content compared to those of catfish flour. As more flour was supplemented, the higher protein content. As conclusion, the mocaf-wheat noodle product was able to be developed to produce high protein content of noodle
Pengaruh Penambahan Beberapa Konsentrasi Gula terhadap Stabilitas Warna Ekstrak Antosianin Buah Rukem (Flacourtia rukam Zoll. & Mor.)
Full text linkPenelitian ini bertujuan untuk menentukan pengaruh penambahan gula dengan konsentrasi yang bervariasi terhadap stabilitas warna ekstrak antosianin buah rukem yang terpapar cahaya lampu fluoresens berdasarkan kinetika degradasi warnanya dan menentukan konsentrasi gula yang optimal untuk meningkatkan stabilitas warna ekstrak antosianin buah rukem. Variasi konsentrasi gula yang digunakan adalah 20, 40, dan 60% (b/v). Uji stabilitas warna dilakukan terhadap ekstrak antosianin buah rukem yang disinari selama 10 jam dengan intensitas cahaya 3580, 4655 lux, dan 8544 lux. Metode yang digunakan yaitu pemodelan kinetika degradasi, dimana nilai konstanta laju degradasi (k) dan nilai waktu paruh (t1/2) dihitung berdasarkan orde reaksi yang sesuai. Degradasi antosianin mengikuti orde reaksi 0. Hasil penelitian menunjukkan bahwa penambahan gula 20% mampu meningkatkan stabilitas warna ekstrak antosianin buah rukem dibandingkan dengan kontrol (tanpa penambahan gula), terlihat dari meningkatnya waktu paruh dari 54,82 jam menjadi 61,35 jam. Namun, pada penambahan gula 40 dan 60% dapat menurunkan stabilitas warnanya dengan menurunnya waktu paruh dari 42,52 jam menjadi 31,66 jam pada intensitas 3580 lux. Kecenderungan kenaikan dan penurunan waktu paruh yang sama juga terjadi pada intensitas cahaya 4655 lux dan 8544 lux. Kesimpulannya, penambahan gula mempengaruhi stabilitas warna ekstrak antosianin buah rukem yaitu dapat meningkatkan dan menurunkan stabilitasnya.Effect of Various Concentration Sugar Addition on the Color Stability of Rukem Fruit Anthocyanin Extract (Flacourtia rukam Zoll. & Mor.)This study is aimed to determine the effect of sugar addition with varying concentrations to the color stability of anthocyanin extract of rukem fruit exposed to fluorescent lamp lights based on color degradation kinetics and determining the optimal sugar concentration to improve color stability of anthocyanin extract of rukem fruit. Variations of sugar concentration were 20, 40, and 60% (w/v). The color stability test was performed on the anthocyanin extract of rukem fruit which was irradiated for 10 hours with the light intensity of 3580, 4655, and 8544 lux. The degradation kinetics modeling was used as method, where the value of the degradation rate constant (k) and half-life value (t1/2) were calculated according to the appropriate reaction order. Degradation of anthocyanin was analyzed using zero order reaction. The results showed that sugar addition at 20% could increase the stability of rukem fruit anthocyanin extract compared to control (without sugar addition), that was reflected by increase of half-life from 54.82 to 61.35 hours. However, addition of 40 and 60% sugar decreased the color stability with the half-life decline from 42.52 to 31.66 hours. The similar half-life increase and decrease also occured at the intensity of light 4655 and 8544 lux. As conclusion, sugar addition might increase and decrease of the color stability in the extract rukem fruit
Teh Rambut Jagung dengan Penambahan Daun Stevia sebagai Alternatif Minuman Fungsional Bagi Penderita Diabetes Melitus Tipe 2
Full text linkRambut jagung merupakan salah satu limbah tanaman jagung yang kurang pemanfaatannya namun mengandung antioksidan (flavonoid) yang dipercaya dapat menurunkan kadar glukosa darah. Penelitian ini secara umum bertujuan untuk mengembangkan formulasi teh dari rambut jagung dengan penambahan daun stevia sebagai alternatif minuman fungsional bagi penderita diabetes melitus tipe 2. Metode yang digunakan adalah eksperimental dengan menggunakan desain rancangan acak lengkap. Penelitian meliputi proses pembuatan ekstrak rambut jagung, pembuatan formulasi teh rambut jagung, analisa organoleptik meliputi uji hedonik dan mutu hedonik dengan parameter uji warna, aroma dan rasa, dan analisis zat gizi teh. Terdapat tiga konsentrasi teh rambut jagung, yaitu 20, 30, dan 40%. Formula terbaik hasil uji organoleptik adalah formula penambahan ekstrak rambut jagung sebesar 40% dengan kandungan air, abu, protein, lemak, karbohidrat masing-masing sebesar 99,6, 0,20, 0,14, 0, dan 0,06%, sedangkan total flavonoidnya sebesar 0,03%. Kesimpulannya, kandungan flavonoid dalam teh rambut jagung dapat memenuhi kebutuhan konsumsi flavonoid laki-laki per hari sebanyak 51,7% dan 37,5% untuk perempuan dengan takaran saji 250 ml. Kandungan kimia yang dimiliki teh rambut jagung dengan penambahan daun stevia berpotensi untuk dijadikan alternatif minuman fungsional.Corn Silk Tea with Additional of Stevia Leaves as an Alternative Functional Beverage for People With Diabetes Mellitus Type 2AbstractCorn silk was known as one of the corn waste that lacks utilization but contains antioxidants (flavonoids) that were believed to suppress blood glucose levels. The purpose of this study was making tea from corn silk with the addition of stevia leaves as a functional beverage for people with diabetes mellitus type 2. This study used experimental method and completely randomized design. The research included the process of manufacture corn silk extract, compose corn silk tea formula, organoleptic analysis including hedonic testing and hedonic quality with color, aroma and taste, and lastly, analysis of tea nutrition. Three silk corn tea formulas were composed in a various concentrations, i.e. 20, 30, and 40%. The best formula from organoleptic test was formula with the addition of 40% corn silk extract which was containing of 99.6% water, 0.20% ash, 0.14% protein, 0% fat, 0.06% carbohydrate, and flavonoids total of 0.03%. In conclusion, the flavonoid content in corn silk can meet the consumption needs of male flavonoids per day by 51.7% and 37.5% for women with a serving dose of 250 ml
Kualitas Tempe Menggunakan Rhizopus delemar TB 26 dan R. delemar TB 37 yang Diisolasi dari Inokulum Tradisional Tempe "daun waru"
Full text linkMikroorganisme utama dalam pembuatan tempe ialah Rhizopus. Penelitian ini bertujuan untuk mendapatkan informasi tentang potensi Rhizopus delemar TB 26 dan R. delemar TB 37 yang berasal dari "daun waru" dalam menentukan kualitas tempe. Tempe dibuat menggunakan R. delemar TB 26 (Tempe TB 26), R. delemar TB 37 (Tempe TB 37), dan inokulum komersial tempe (Tempe K). Uji organoleptik, aktivitas antioksidan, dan analisis proksimat telah dilakukan untuk menentukan kualitas tempe. Hasil penelitian menunjukkan bahwa tekstur, warna dan komposisi kimia Tempe TB 26, Tempe TB 37, dan Tempe K memenuhi syarat mutu tempe yang ditetapkan di Indonesia yang tertera pada SNI 3144:2015. Secara organoleptik, citarasa Tempe TB 26 dan Tempe TB 37 lebih disukai panelis dibandingkan dengan Tempe K. Dengan demikian, R. delemar TB 26 dan R. delemar TB 37 yang masing masing digunakan membuat Tempe TB 26 dan Tempe TB 37 berpotensi dikembangkan sebagai inokulum tempe. Kesimpulannya, penelitian ini telah berhasil untuk menganalisis kualitas Tempe TB 26 dan Tempe TB 37 yang dibandingkan dengan tempe komersial.Quality of Tempeh using Rhizopus delemar TB 26 and R. delemar TB 37 Isolated from Traditional Inoculum of Tempeh "daun waru"AbstractRhizopus is the main microorganism in tempeh fermentation. This study aims to obtain information about the potential of R. delemar TB 26 and R. delemar TB 37 isolated from traditional inoculums of tempeh "waru leaves" in determining the quality of tempeh. Tempeh was made using R. delemar TB 26 (Tempe TB 26), R. delemar TB 37 (Tempe TB 37), and commercial inoculum of tempeh (Tempe K). Organoleptic test, antioxidant activity, and proximate analysis were done to measure the quality of tempeh. The results showed that the texture, color and chemical composition of Tempe TB 26 and Tempe TB 37 fulfilled the tempeh quality requirements as stated in SNI 3144: 2015. Tempe TB 26 and Tempe TB 37 were more preferred by panelists compared to Tempe K. Therefore, R. delemar TB 26 and R. delemar TB 37, which were used to make Tempe TB 26 and Tempe TB 37, could potentially be developed as tempeh inoculum. As conclusion, Tempe TB 26 and Tempe TB 37 could be analyzed and the comparison to commercial tempeh was also successfully identified
Sifat Fisik, Kimia, dan Sensori Mi Instant yang Terbuat dari Tepung Komposit Terigu dan Pati Kimpul Modifikasi
No full textPati kimpul modifikasi (PKM) merupakan pati yang dibuat dari umbi kimpul yang diberikan perlakuan fisik atau kimia sehingga mempunyai sifat fungsional lebih baik dibandingkan dengan pati kimpul alami. Pada penelitian ini, dievaluasi pengaruh komposisi tepung komposit (terigu-PKM) terhadap sifat fisik, kimia, dan sensori mi instant. PKM dibuat menggunakan metode high moisture treatment (HMT), yaitu pemanasan pati pada suhu 110˚C pada kadar air 30% selama 10 jam. Tepung komposit dibuat dengan menggunakan berbagai perbandingan terigu dan PKM (90:10, 80:20, 70:30, 60:40, 50, dan 50). Selanjutnya, tepung komposit ini diolah menjadi mi instan, dan kemudian sifat fisik, kimia, dan sensori mi instan yang dihasilkan dievaluasi. Hasil penelitian menunjukkan perbandingan terigu dan PKM pada tepung komposit berpengaruh nyata terhadap kadar air, kadar protein, kadar karbohidrat, waktu pemasakan, kehilangan padatan akibat pemasakan (KPAP), dan daya serap air mi instan. Berdasarkan hasil uji sensori, tepung komposit terigu-PKM (80:20) menghasilkan mi instan terbaik. Komposisi zat gizi mi instan yang dihasilkan adalah: kadar air (2,74%), lemak (29,19%), protein (7,68%), dan karbohidrat (58,91%). Mi instan terigu-PKM (80:20) memiliki aroma lebih baik, waktu pemasakan lebih singkat, dan daya serap air lebih baik dibandingkan mi terigu 100%, namum memiliki KPAP lebih tinggi. Kesimpulannya, PKM dapat digunakan sebagai pensubstitusi sebagian terigu dalam pembuatan mi instant.Physical, Chemical, and Sensory Properties of Instant Noodles Prepared from Wheat - Modified Tannia Starch CompositeAbstractModified tannia starch (MTS) is the starch made from tannia tuber, which is provided a physical or chemical treatment so that it has better functional properties compared to native tannia starch. In this study, the effect of the composition of the wheat flour-MTS composite on the physical, chemical, and sensory properties of instant noodles was evaluated. MTS was produced by using the high moisture treatment (HMT) method, which was heating the starch at the temperature of 110˚C and moisture content of 30% for 10 hours. The composite flour was made with various ratios of wheat flour and MTS (90:10, 80:20, 70:30, 60:40, 50, and 50). Subsequently, the composite flour was processed into instant noodles, and then the physical, chemical, and sensory properties of the noodles produced were evaluated. The results showed the ratio of wheat flour and MTS had a significant effect on the water content, protein content, carbohydrate content, cooking time, cooking loss, and water absorption capacity of the instant noodle. Based on the results of sensory evaluation, the composite of wheat flour-MTS (80:20) could produce the best instant noodles. The nutrition composition of the instant noodles produced, namely: water content (2.74%), fat content (29.19%), protein content (7.68%), and carbohydrate content (58.91%). If compared to the 100% wheat flour instant noodles, the wheat flour-MTS (80:20) instant noodles has a better aroma, better water absorption capacity, and shorter cooking time, but it has a higher cooking loss. In conclusion, MTS can be used as a partial substitute for flour in making instant noodles
Aktivitas Antioksidan, BAL, Viskositas dan Nilai L*a*b* dalam Yogurt Drink Sinbiotik antara Bifidobacterium Longum dengan Buah Naga Merah (Hylocereus polyrhizus)
No full textPenelitian ini bertujuan untuk mengkaji interaksi kombinasi perlakuan antara rasio starter dan konsentrasi ekstrak buah naga merah (Hylocereus polyrhizus) pada yogurt drink terhadap aktivitas antioksidan, BAL, viskositas dan nilai L*a*b*. Penelitian dengan menggunakan desain eksperimen rancangan acak lengkap pola faktorial dengan dua faktor dan tiga kali pengulangan. Faktor pertama adalah rasio starter, mempunyai tiga taraf yaitu S1,1 (L. bulgaricus + S. termophilus): 1 B. longum; S2,1 (L. bulgaricus + S. termophilus): 2 B. longum; dan S3, 2 (L. bulgaricus + S. termophilus): 1 B. longum dan faktor kedua konsentrasi ekstrak buah naga merah mempunyai empat taraf dengan T0 tanpa buah naga merah, T1 ekstrak buah naga merah 5%; T2 ekstrak buah naga merah 10%; T3 ekstrak buah naga merah 15%. Variabel yang diuji aktivitas antioksidan, BAL, viskositas dan warna . Variabel dianalisis dengan ANOVA pada taraf 5% dan dilanjutkan dengan uji Wilayah Ganda Duncan. Hasil penelitian menunjukkan adanya interaksi rasio bakteri dengan konsentrasi ekstrak buah naga merah terhadap aktivitas antioksidan dan pengaruh nyata (P0.05). Semakin tinggi rasio Bifidobacterium longum menghasilkan kenaikan viskositas dan semakin tinggi penambahan konsentrasi ekstrak buah naga merah menghasilkan kenaikan nilai a (warna merah - hijau) sedangkan viskositas, nilai L (kecerahan) dan nilai b (biru – kekuningan) mengalami penurunan, dan jumlah BAL tidak berpengaruh nyata terhadap perlakuan.The purpose of this research was to evaluate the interaction combination of treatments between starter ratio and the concentration of red dragon fruit (Hylocereus polyrhizus) extract of yogurt drink to antioxidant activity, LAB, viscosity and L*a*b* score . The experiment design of this research was completely randomized design of factorial pattern with two factors and three replications. The first factor was a starter ratio, with has three levels of S1, 1(L. bulgaricus + S. termophilus): 1 B. longum; S2, 1( L. bulgaricus + S. thermophilus): 2 B. longum; and S3, 2 (L. bulgaricus + S. termophilus):1 B. longum) and the second factor was the concentrations of red dragon fruit extract having four levels (T0, without red dragon fruit extract; T1, red dragon fruit extract 5%; T2, red dragon fruit extract 10%; T3, red dragon fruit extract 15% ). Variables tested for antioxidant activity, BAL, viscosity and L*a*b* score . The variables were analyzed by ANOVA at 5% level and continued by Duncan Multiple Range Test . The result showed that the interaction of bacteria ratio with red dragon fruit extract concentration on antioxidant activity and significant effect (P 0.05). The higher ratio Bifidobacterium longum resulted in increased viscosity and the higher concentration of red dragon fruit extract yields a (red - green) value rises while viscosity, L (brightness) and b (blue - yellow) values decrease
Aktivitas Penangkalan Radikal Bebas dan Kemampuan Reduksi Ekstrak Kulit Kayu Akway (Drimys piperita Hook. f.)
Full text linkAkway (Drimys piperita Hook. f) merupakan tumbuhan yang termasuk dalam kelompok tumbuhan berkayu, berdaun tebal aromatik dan termasuk kerabat winteraceae. Tumbuhan ini dimanfaatkan sebagai obat tradisional untuk mengobati malaria dan untuk meningkatkan vitalitas tubuh. Beberapa penelitian kandungan fitokimia ekstrak akway telah dilakukan untuk mengetahui potensi bioaktivitas akway. Ekstrak kulit kayu akway dilaporkan mengandung kelompok senyawa alkaloid, saponin, tanin, flavonoid, terpenoid dan glikosida. Minyak atsiri kulit kayu akway mengandung linalool, β-pinen, α-pinen, nerolidol dan terpineol. Senyawa-senyawa tersebut dilaporkan memiliki aktivitas antioksidan yang tinggi. Tujuan penelitian ini adalah untuk menentukan kapasitas antioksidan ekstrak kulit kayu akway secara in vitro dan vitamin C sebagai kontrol positif. Pengujian kapasitas antioksidan yang dilakukan meliputi kandungan total fenol dengan metode Folin-Ciocalteu, kandungan flavonoid dengan metode aluminum klorida, kapasitas penangkalan radikal bebas menggunakan metode DPPH (1,1-Diphenyl-2-picrylhydrazyl)-radical scavenging assay dan daya reduksi menggunakan metode reduksi Fe+3 menjadi Fe+2. Hasil penelitian menunjukkan bahwa ekstrak metanol memiliki kandungan total fenol dan flavonoid yang tertinggi dibandingkan dengan ekstrak etanol dan etilasetat. Kandungan total fenol dan flavonoid ekstrak metanol masing-masing sebesar 18,22 dan 14,32%. Ekstrak metanol dan vitamin C memiliki kapasitas menangkal radikal bebas DPPH dan daya reduksi yang paling tinggi kemudian diikuti ekstrak etanol dan etilasetat. Kemampuan menangkal radikal bebas ekstrak metanol dan vitamin C pada konsentrasi 200 µg/ml masing-masing sebesar 90% dan 88,31% sedangkan daya reduksi masing-masing sebesar 0,54 dan 0,62. Kesimpulannya, ekstrak metanol memiliki kapasitas antioksidan yang paling tinggi dibandingkan dengan ekstrak etanol dan etilasetat. Abstract Free Radical Scavenging Activity and Reducing Power of Akway (Drimys piperita Hook. f.) Bark ExtractsAkway (Drimys piperita Hook. f) was a woody and aromatic plant of winteraceae. This plant was used as traditional medical plant to heal malaria and to enhance vitality of body. Some studies were done to know bioactivity potency of akway extracts. D. piperita bark extract contains alkaloid, saponin, tanin, flavonoid, terpenoid and glycoside. The bark essential oil of the plant consists of lynalool, β-pinene, α-pinene, nerolidol and terpineol. Those compounds were exhibited high antioxidant activity. The objectives of this research were to determine total phenol and flavonoid of the extracts and its antioxidant capacity which was compared to antioxidant capacity of vitamin C. The assay of antioxidant capacity comprised of total phenol and flavonoid content, free radical scavenging activity, and reducing power. Total phenol and flavonoid was determined using Folin-Ciocalteu and aluminum chloride method, respectively while determination of free radical scavenging activity and reducing power using DPPH-radical scavenging and Fe+3 to Fe+2 reducing power method, respectively. The results indicated that methanol extract had the highest in total phenol and flavonoid content. Total phenol and flavonoid of methanol extract were 18.22% and 14.32%, respectively. Vitamin C and methanol extract had the highest DPPH (1,1-Diphenyl-2-picrylhydrazyl)-radical scavenging activity and reducing power, respectively. DPPH-radical scavenging activity of methanol extract and vitamin C in concentration of 200 µg/ml were 90% and 88.31%, respectively while its reducing power were 0.54 and 0,62, respectively. As conclusion, methanol extract had the highest antioxidant activity compared with ethanol and ethyl acetate extracts
Formulasi Breakfast Meal Flakes dari Tepung Suweg dan Stabilized Rice Bran Menggunakan Metode Respon Permukaan
Full text linkPenelitian bertujuan untuk mengetahui jumlah tepung suweg dan stabilized rice bran (SRB) yang harus ditambahkan dalam formula breakfast meal flakes (BMF) yang optimal serta mengetahui karakter fisik, kimia, dan organoleptik BMF yang dihasilkan. Penelitian menggunakan metode respon permukaan dengan model Central Composit Design. Faktor yang diteliti yaitu proporsi tepung suweg dan SRB. Pembuatan BMF dilakukan dengan cara pencampuran tepung suweg (proporsi 70-85%) dan SRB (proporsi 15-30%) dengan bahan lainnya yaitu tapioka 10%, susu skim 15%, garam 1,5 %, margarin 5%, baking powder 3 %, vanili 1% (seluruh persentase terhadap berat tepung suweg dan SRB) dan air 100 ml, hingga membentuk adonan, kemudian dilakukan steam blanching, dicetak dan dipanggang. Penelitian ini berhasil untuk menentukan formula optimum untuk pembuatan BMF yaitu sebesar 22,5% untuk SRB dan 77,5% untuk tepung suweg. Produk BMF dari formula terbaik ini mempunyai hardness sebesar 29,44 N, dan serat pangan, antioksidan, protein, kadar lemak, kadar air, kadar abu dan karbohidrat masing-masing sebesar 15,93, 75,10, 11,7, 9,51, 2,4, 2,16, dan 64,21 %. Warna produk akhir adalah coklat keabuan dengan tekstur yang renyah serta aroma yang netral. Rasa pada produk akhir adalah dinilai tidak pahit dengan nilai kesukaan adalah disukai panelis. Kesimpulannya, formula optimal BMF dari tepung suweg dan SRB berhasil ditentukan dengan menggunakan metode respon permukaan.Formulation of Breakfast Meal Flakes Based on Suweg Flours and Stabilized Rice Bran using Response Surface MethodologyAbstractThe purpose of this research was to study the amount of suweg flour and stabilized rice bran (SRB) which must be added in the optimal breakfast meal flakes (BMF) formula and to study the physical, chemical, and organoleptic characteristics of BMF was produced. The study used Response Surface Methodology with the Central Composite Design model examined the proportion of suweg flour and SRB. Making BMF is done by mixing suweg flour (70-85%) and SB flour (15-30%) with other ingredients namely 10% tapioca starch, 15% skim milk, 1.5% salt, 5% margarine, 3% baking powder, 1% vanilla (all percentages of the weight of suweg flour and SRB), and 100 ml of water, to form a mixture, then steam blanching, molded and baked. The best formula for BMF is the proportion of 22.5 % of SRB and 77.5% of flour suweg. Breakfast meal flakes have a hardness value of 29.44 N, dietary fiber 15.93%, antioxidant of 75.97%, protein content of 11.7%, fat of 9.51%, moisture of 2.4%, ash content of 2.16%, the carbohydrate content of 64.21%, color of 2.3 (grayish brown), texture of 3.3 (crispy), flavor 2.5 (neutral), taste of 2.9 (not bitter), and preference 2.9 (likes). As conclusion, surface response method successfully determined the optimal BMF formula from flour suweg and SRB
Aktivitas Antioksidan dan Sifat Fisikokimia Madu Temulawak (Curcuma zanthorrhiza roxb) yang Ditambah Ekstrak Jahe (Zingiber officinale Rosc)
Full text linkPenelitian bertujuan untuk mengetahui pengaruh konsentrasi temulawak atau temulawak dan jahe terhadap sifat fisikokimia dan aktivitas antioksidan madu temulawak. Madu temulawak dibuat dari madu dan rempah yaitu ekstrak temulawak tanpa dan dengan penambahan jahe. Variasi konsentrasi ekstrak rempah yang digunakan adalah 1,5 sampai 7,5%. Total fenol, pH, total asam tertitrasi serta antioksidan dianalisis pada produk ini. Hasil penelitian menunjukkan bahwa penambahan jahe tidak memberikan pengaruh terhadap sifat fisikokimia tetapi cenderung menurunkan aktivitas antioksidan. Peningkatan konsentrasi temulawak maupun jahe dan temulawak meningkatkan kadar total fenolik dan pH serta menurunkan total asam tertitrasi dan total padatan terlarut. Peningkatan konsentrasi temulawak maupun jahe dan temulawak dapat meningkatkan antioksidan namun pada konsentrasi tertentu dengan hasil terbesar yaitu 81,43 % dan dengan IC50 sebesar 8247 ppm. Kesimpulannya, ekstrak jahe dapat meningkatkan aktivitas antioksidan dan sifat fisikokimia madu temulawak walaupun menunjukkan adanya peningkatan spesifik seiring dengan peningkatan konsentrasi penambahannya.Antioxidant Activity and Physicochemical Properties of Curcuma zanthorrhiza Roxb added with Extract of Ginger (Zingiber officinale Rosc)AbstractThe purpose of this study is to determine the effect of the concentration of temulawak or temulawak and ginger on the physicochemical properties and antioxidant activity of temulawak honey. Temulawak honey was made from honey, temulawak and ginger extract. The extract of 1.5 to 7.5% was used to produce temulawak honey beverage. Phenol content, pH, titratable acidity, and antioxidant activity was analyzed. The results showed that the addition of ginger had no effect on physicochemical properties but tended to increase antioxidant activity. The increase in concentration of temulawak and ginger might increase the total phenolic and pH and decreased the total titrated acid and total dissolved solids, however might increase antioxidant activity of temulawak honey at 81.43% with an IC50 of 8247 ppm. As conclusion, the ginger extract might increase antioxidant activity and physicochemical properties of beverage made from Curcuma zanthorrhiza Rosc