Kentang merupakan tanaman semusim yang penting dan memiliki potensi untuk diekspor ke negara lain serta banyak digunakan sebagai sumber karbohidrat atau makanan pokok bagi masyarakat dunia setelah gandum, jagung dan beras. Kentang sebagian besar dibudidayakan pada tanah yang miring dan di lahan yang memacu erosi tanah sehingga dapat menimbulkan tanah longsor. Hal ini disebabkan karena cara budidaya dengan penggemburan tanah sehingga tanah akan mudah lepas. Oleh karena itu, perlu dilakukan metode budidaya dalam polybag. Tujuan penelitian ini untuk mengkaji penanaman kentang di polybag dan lahan dalam meningkatkan pertumbuhan dan produksi kentang serta mengkaji perbedaan pertumbuhan dan produksi kentang yang ditanam dalam planterbag, polybag dan di lahan. Parameter yang diamati yaitu tinggi tanaman, jumlah daun, jumlah tunas yang tumbuh, jumlah umbi dan bobot umbi serta morfologi umbi. Perlakuan dilakukan dengan penanaman umbi kentang pada lahan, polybag dan planterbag atau 3 perlakuan dan 7 ulangan. Data penelitian dianalisis dengan Analysis of Variance (ANOVA) pada taraf kepercayaan 95% dan dilanjutkan dengan Uji Beda Nyata Terkecil (BNT). Hasil analisis menunjukkan bahwa penanaman kentang dalam tempat penanaman yang berbeda dapat meningkatkan pertumbuhan dan produksi tanaman kentang dibandingkan dengan yang di lahan, meskipun yang berbeda nyata hanya tinggi tanaman dan jumlah daun. Kentang yang ditanam dalam polybag menghasilkan pertumbuhan yang lebih baik seperti tinggi tanaman, jumlah daun, dan jumlah tunas demikian juga dengan bobot umbinya dibandingkan dengan planterbag dan lahan. Sedangkan kentang yang ditanam di dalam planterbag menghasilkan jumlah umbi yang lebih banyak dibandingkan dengan polybag dan lahan. Budidaya tanaman kentang di dalam Polybag layak dilakukan karena dapat meningkatkan pertumbuhan dan produksi kentang varietas Granola. Kata kunci: pertumbuhan, produksi, kentang, polybag.
Tempe is a cheap and popular food that can be processed into yogurt as an alternative to cow’s milk. Tempe yogurt, which enriched with probiotics is an alternative beverage that able to increase body health. This study was to investigate the nutritional characteristics of tempe and nutrient content of yogurt tempe products. The sample of this study consist of eight test groups, cow milk yogurt (C1), juiced tempe yogurt (C2) and tempe yogurt, which was made using cow milk and varying amounts of tempe flour, 2.5% (T1); 5% (T2); 7.5% (T3); 10% (T4); 15% (T5) and 50% (T6) respectively. Each samples were prepared to proximate compound and antioxidant analysis and organoleptic test to determine the highest nutritional yogurt and most preferred taste. According to the test results, the highest carbohydrate, protein and lipid content were found in the T3 group, which reached respectively 12.21%; 11.72%; 24.46% while the antioxidant value reached 53.93%. Meanwhile, based on organoleptic test using hedonic scale for the highest value of taste preferences, showed that the most preferred taste was T2 group (4.39 point). The addition of tempe flour increases the nutritional value of yogurt in general. It caused by fermentation process of tempe, which releases nutritional compounds in soybeans. According to panelist, the T2 sample became a favorite one, because it has a softer milk texture, a balanced and more fragrant flavor. The conclusion is, the additional tempe flour in yogurt can increase nutritional value and preferred taste.
On the research of enzyme production levels observed cellulase produced by bacteria in the digestive tract of the isolation of the Snail (Achatina fulica). Isolation of bacteria based on the ability of bacteria to grow on CMC media. The purpose of this study was to determine cellulase activity by cellulolytic bacteria. Some bacterial isolates were identified as cellulolytic bacteria, they were KE-B1, KE-B2, KE-B3, KE-B4, KE-B5, and KE-B6. Isolates KE-B6 was the best isolates. Furthermore KE-B6 isolates were grown on media production to determine the pattern of growth and enzyme activity. Measurement of cell growth was conducted by inoculating starter aged 22 hours at CMC production of liquid medium. Cellulase enzyme activity measurements was performed by the DNS method. The results showed that the highest activity by new isolate bacteria KE-B6 and its value of the activity of 0.4539 U/mL, growth rate (μ) 0.377/hour and generation time (g) 1.84 hour. This research expected cellulase of producing bacteria were easy, inexpensive and efficient. This enzyme can be used as an enzyme biolytic once expected to replace expensive commercial enzyme. The biotylic enzyme can be applied to strains improvement (protoplast fusion).
ABSTRAKKacang panjang (Vigna sinensis L.) sebagai sayuran yang sangat digemari masyarakat, mengandung vitamin dan mineral yang sangat tinggi, sehingga memiliki potensi yang besar untuk selalu dikembangkan. Pemanfaatan lahan pasir dapat digunakan untuk memperluas kegiatan budidaya kacang panjang, apabila diberi penambahan bahan organik di dalamnya. Penelitian ini bertujuan untuk mengetahui apakah penambahan pupuk kandang dan NPK Mutiara dapat meningkatkan pertumbuhan dan produksi serta apakah terdapat perbedaan pertumbuhan dan produksi kacang panjang (Vigna sinensis L.) pada tanah berpasir. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan 9 kali ulangan. P0: kontrol (tanpa pupuk), P1: Pupuk kandang sapi 500 g/tanaman, dan P2: Pupuk NPK mutiara 1 g/L atau setara dengan 125 mL/tanaman. Perlakuan kontrol, pupuk kandang dan NPK Mutiara pada parameter pertumbuhan lebih tinggi hasilnya oleh perlakuan pupuk NPK Mutiara yaitu berpengaruh pada tinggi tanaman namun tidak berpengaruh pada jumlah daun kacang panjang. Perlakuan kontrol, pupuk kandang dan NPK Mutiara pada parameter produksi lebih memiliki pengaruh oleh perlakuan pupuk NPK Mutiara yaitu berpengaruh pada hasil jumlah polong, panjang polong, berat basah tanaman, berat basah polong, berat kering tanaman, berat kering polong, dan berat kering biji namun tidak berpengaruh hasilnya pada jumlah bunga tanaman kacang panjang.Kata kunci: kacang panjang, pupuk kandang, NPK Mutiara, tanah berpasir ABSTRACT Cowpea (Vigna sinesis L.), as widely favourite vegetable, contains high vitamins and minerals, so that it is very potential to be grown. Cowpea cultivation on sandy soil may possibly be improved by adding organic materials into the soil. This research was conducted to determine whether the manure and the NPK Mutiara application on sandy soil could improve cowpea growth and production. This research used Completely Random Design (CRD) by 3 treatments and 9 repetitions. P0: control (without fertilizer), P1: Cow manure 500 g/plant, and P2: NPK Mutiara fertilizer 1 g/L or equal to 125 mL/plant. The NPK Mutiara fertilizer application shows the highest effect on the height of the plants rather than control and cow manure application. But it is less affecting to the number of cowpea leaves. Regarding to production parameter, NPK Mutiara gives the best effect on the number, length, wet and dry weight of the pods, wet and dry weight of the plants, and wet and dry weight of the peas. But it does not affect to the numbers of cowpea flowers. Keywords: Cowpea, manure, NPK Mutiara, sandy soil PENDAHULUANTanaman kacang panjang (Vigna sinensis L.) merupakan tanaman sayur jenis kacangkacangan yang banyak diusahakan di Indonesia. Tanaman kacang panjang bukan tanaman asli Indonesia, namun berasal dari negara India dan Afrika Tengah yang telah berabad-abad dibudidayakan di Indonesia. (Arinong, 2013). Sayur ini banyak mengandung vitamin A, vitamin B, dan vitamin C terutama pada polong yang masih muda. Biji kacang panjang banyak mengandung lemak, protein, dan kar...
The reasearch is about protein and ash content in Alfalfa ( M.sativa L ) after fertilization bioriza-02. Thisresearch is in polibag plastic in 15 March-15 August 2006, using to research design RAL ( Randomized CompleteDesign ), Treatmen is give fertilization biorisa–02 , one treatment is Po ( without biorisa ) P1 ( Biorisa-02 0,5 caps/plant ), P2 (1 caps/plant); P3;(11/2 caps/plant) and P4 (2 caps / plant) every treatment repeated five times . Proteinconternt and ash analysed follow of makro-Kjeldahl which modification (AOC, 1970 in Sudarmaji, 1984). The resultof research indicated that increase of dose of fertilization biorisa-02 will boost up rate of protein of crop alfalfa,though fertilization of dose Po (without biorisa–02 caps/plant) 18,472 mg/100 of gram differ is not real by control18.264; so also fertilization 1 caps/plant ( 20,786 ) differing is not real with fertilization have dose (20,82) but differreality with gift fertilize to have dose 2 mg/plant (21,828)
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