Biji Ketapang mengandung asam lemak tak jenuh dan protein yang tinggi. Biji ketapang berpotensi untuk dikembangkan menjadi yoghurt atau probiotik. Penelitian ini bertujuan untuk menentukan pengaruh dan karakteristik kimia dan mikrobiologi dari penggunaan jenis starter dan lama fermentasi pada yoghurt susu biji ketapang. Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan pola 2 faktor. Faktor pertama variasi jenis starter yaitu S. thermophilus (St), L. bulgaricus (Lb) dan S. thermophilus-L. bulgaricus (St-Lb). Faktor kedua lama fermentasi yaitu 4, 6 dan 8 jam. Analisis data menggunakan Duncan Multiple Range Test didapatkan bahwa terdapat pengaruh nyata terhadap kadar protein, gula, lemak dan total asam namun tidak berpengaruh nyata terhadap total Bakteri Asam Laktat (BAL). Kadar protein tertinggi didapat dari perlakuan Lb dengan lama fermentasi 8 jam yaitu 13,56%, kadar gula total 23,27% pada perlakuan jenis starter St-Lb dengan lama fermentasi 8 jam, total asam 0,59% pada perlakuan St-Lb dengan lama fermentasi 8 jam, kadar lemak paling tinggi didapatkan dari perlakuan jenis starter St dengan lama fermentasi 4 jam yaitu 0,245%. Untuk menghasilkan yoghurt biji ketapang dengan kadar protein yang tinggi, maka susu biji ketapang sebaiknya difermentasi selama 8 jam menggunakan starter Lactobacillus bulgaricus. Adapun rata-rata nilai log dari total bakteri asam laktat cenderung stabil yaitu 7,35-7,75 CFU/ml.
Brownies merupakan cake coklat yang terbuat dari tepung terigu, lemak, telur, gula pasir dan coklat. Metode pemasakan brownies ada dua yaitu pemanggangan dan pengukusan. Penelitian ini menggunakan tepung jewawut dan tepung maizena agar dihasilkan brownies kukus bebas gluten. Penelitian ini bertujuan untuk mengetahui formulasi tepung yang memiliki kadar protein tertinggi pada brownies dan untuk mengetahui lama pengukusan yang optimal sehingga menghasilkan brownies kukus tepung jewawut dan tepung jagung yang paling disukai. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktorial yaitu faktor pertama ratio tepung jewawut dan tepung jagung (50:50, 40:60 dan 30:70), sedangkan faktor kedua lama pengukusan (30 menit, 40 menit dan 50 menit). Hasil penelitian menunjukkan Brownies kukus tepung jewawut dan tepung jagung dengan ratio 50:50 dan lama pengukusan 50 menit merupakan ratio yang terbaik karena memiliki kadar protein paling tinggi yaitu 5.828%. Pada perlakuan ini menghasilkan 19.967% kadar air, 1.585% kadar abu, 1.786% gula total, serta uji organoleptik terhadap warna 3.590 (coklat gelap), tekstur 3.340 (lembut), flavor jewawut 2.855 (sedikit terasa) dan kesukaan keseluruhan 3.285 (disukai). Kata kunci : Brownies, tepung jewawut, tepung jagung, kadar protein. ABSTRACT Brownies is chocolate cakes made from flour, fat, eggs, sugar and chocolate. There are two methods of cooking brownies namely roasting and steaming. This study uses millet flour and maizena flour to produced gluten free steamed brownies. This study aims to determine the best of flour formulated which has highest protein content in steamed brownies and to knew the optimal steaming time that produced the most favored of steamed brownies millet flour and corn flour. This study used a completely randomized design (CRD) with two factorials, the first factor is ratio of millet flour and corn flour (50:50, 40:60 and 30:70), while the second factor was the duration of steaming process (30, 40 and 50 minutes). The result of the study showed steamed flour of millet flour and corn flour with ratio of 50:50 and with steamed process duration 50 minutes is the best ratio because it had the highest protein content of 5.828%. In this treatment yielded 19.97% moisture content, 1.585% ash content, 1.786% total sugar and organoleptic test is 3.590 (dark chocolate) colors, 3.340 (soft) texture, 2.855 (slightly felt) millet flavors and 3.285 (preferred) overall preferences. Keywords : Brownies, millet flour, corn flour, protein content
The risk of obesity and chronic diseases rises with the increase in one’s level of welfare. Among the influencing factors for such phenomenon are eating behavior and lifestyle. Modern lifestyle which demands that everything be done in an instant makes people consume food with the nutritional adequacy disregarded. The emergence of fast food and junk food in Indonesia has also exerted an influence on people’s consumption pattern. Some preventive and mitigating efforts can be made, one of which is provision of nutrition education. This research was aimed to determine the influence of nutrition education on the change of consumption knowledge, behavior, and habit of the students of Universitas Slamet Riyadi Surakarta. The respondents enrolled in this research were of the ages of 19–21 years. They were purposively selected on the basis that some of them were able to plan and select which food to be consumed. This research employed questionnaires during pre-test and post-test, with the respondents assigned to 2 groups of 32 students each. The first group received nutrition education, while the second received none. Results showed that the provision of nutrition education for college students didn’t influence students’ knowledge, attitude, and behavior when consuming food for both groups. The preference of the student college to food consumption probably influenced by another factors. It would need another study to evaluated factors that influenced the food preference of student college.
Steam explosion was proposed as a pretreatment method to accelerate the hydrodistillation (SE-HD) of kaffir lime leaves. This research aimed to compare SE-HD and conventional hydrodistillation (HD) in terms of extraction yield, extraction time, chemical composition, and essential oil quality. The extraction of kaffir lime oil with SE-HD was superior to HD with regard to extraction time (35 min. vs 120 min.) and extraction yield (1.386% vs 1.182%). The chemical composition and the quality of the extracted essential oil from both methods were quite similar, indicating the absence of adverse influence from the application of steam explosion as pretreatment. Therefore, SE-HD was a fast and an energy-saving method for extracting essential oil from kaffir lime leaves.
Kopi merupakan salah satu jenis tanamannperkebunan yang sudah lama dibudidayakan dannmemiliki nilai ekonomi yang tinggi. Biji kopi umumnya diolah menjadi kopi bubuk. Produk kopi ini ditambahhdengan rempah-rempah yaitu kapulaga dan kayu manis sehinggaaakan menghasilkan produk kopi yang kaya akan antioksidan. Tujuan dari penelitian ini yaitu menentukannpengaruh penambahan kapulaga dan kayu manis dalam kopi serta menentukan pengaruh variasi komposisi rempah terhadappkopi dan aktivitasSantioksidan kopi rempah. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap (RAL) dengan faktor pertama perbandinganSkopi dan rempah (100:0, 99:1, dan 98:2) dengan perbandinganSkapulaga dan kayuumanis 1:3. Faktor kedua yaitu perbedaan suhu roasting kopi (205oC, 220oC, 235oC). Hasil penelitian ini menunjukan bahwa formulasi kopi dengannpenambahan rempah (kapulaga dan kayu manis) terbaik berdasarkan nilai kimia dan organoleptikSadalahhkopi 100 gram rempah 0 gram dengan suhu 220oC dengan kadar air sebesar 5,536%, kadar abu sebesar 4,705%, aktivitas antioksidan DPPH sebesar 67,886%, aktivitas antioksidan FRAP sebesar 11,396%, total fenol sebesar 2,851 mg GAE/g serta kadar kafein sebesar 18,290 mg/g.
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