Judul: Pengembangan Model Bisnis Produk Dadih Susu Sapi
Abstrak: Dadih is milk fermented product which reputed as one of each traditional healthy food from Indonesia that use milk and lactic acid bacteria as the main raw material. Based on the research that actual production fermented milk product in Indonesia was increased from year to year. Customer development could be one of the solution to know and fulfil customer needs taht use iteration concept until get the best decision. Business model canvas was a tool to combine and choose an idea to get the new concept dadih product. The last decision from iteration that had been done with a repetition would change dadih concept from founders mind became a product that got customer acceptance. Production cost calculation with 200 litre a day scale was got Rp. 6.000,- for the selling price. In investation criteria analiysis, dadih cow milk business project had passed and suitable because NPV and Net B/C value was more than one and IRR more than bank interest. From customer discovery step in customer validation for business model development was changed in channel, value proposition, customer relationship, and customer segment.
Keyword: validated business model., dadih, customer acceptance, cow milk, business model canvas

Judul: Pengembangan Produk Dadih Susu Sapi
Abstrak: Keterbatasan susu kerbau sebagai bahan baku dan kurang higienisnya proses produksi menjadi beberapa faktor penghambat dalam proses penerimaan dadih tradisional. Pembuatan dadih dengan bahan baku susu sapi menggunakan bakteri asam laktat (BAL) spesifik sebagai starter-nya merupakan salah satu solusi untuk mengatasi hambatan-hambatan tersebut. Hasil iterasi uji hedonik menunjukkan bahwa formula dengan perbandingan L. casei dengan B. longum sebesar 1:5 (3%), penggunaan bahan pengental berupa tepung maizena sebesar 8%, serta tambahan perisa sejumlah 25%, merupakan dadih susu sapi dengan formula terbaik. Formula tersebut menunjukkan nilai pH, total asam tertitrasi, kadar air/total padatan, kadar abu, kadar lemak, kadar protein, serta kadar karbohidrat berturut-turut sebesar 4,46, 1,52%, 72,13% / 27,87%, 0,75%, 4,75%, 3,83%, serta 18,54%, sementara untuk total BAL sebesar 2,6 x108 – 3 x 109 CFU/ml. Berdasarkan takaran saji dadih susu sapi yaitu 125 gr/cup, maka diperoleh % AKG untuk lemak dan protein masing-masing sebesar 8%, sedangkan untuk karbohidrat serta kalori masing-masing sebesar 7%. Penentuan kapasitas produksi diasumsikan berdasarkan target pasar 0,5% dari Total Available Market. Mengacu kepada kapasitas produksi, takaran saji, serta asumsi-asumsi yang menghasilkan biaya tenaga kerja, biaya overhead, dan biaya bahan baku, maka didapatkan Biaya Produksi dadih susu sapi sebesar Rp 2.928,-/cup.
Keyword: Dadih, Susu Sapi, Formula, Biaya Produksi

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell