Judul: Characterization of Processed Product Based on Coffee Fruit Peel from the Cibulao Forest Farmers Group.
Abstrak: Kelompok Tani Hutan Cibulao berfokus pada pengolahan biji kopi, dan belum memiliki pemanfaatan terkait kulit buah kopi. Perlu adanya pemanfaatan kulit buah kopi menjadi produk olahan agar memiliki nilai tambah seperti teh seduh cascara, kombucha cascara, dan selai lembaran cascara. Karakterisasi bahan dan produk diperlukan untuk mengetahui keunggulan dan kelayakan produk. Analisis proksimat bahan diperlukan untuk mengetahui metode pengeringan dan jenis kopi terbaik. Hasil karakterisasi kulit buah kopi arabika dengan pengeringan sinar matahari adalah sebagai berikut kadar air 9.83%, kadar abu 6.62%, kadar lemak 4.48%, kadar protein 11.98%, serat kasar 32.07%, dan karbohidrat 35.02 %. Dari hasil tersebut menunjukkan bahwa produk dengan metode pengeringan sinar matahari memberikan hasil yang mendekati produk komersial. Karakteristik teh seduh cascara, sebagai berikut kadar air 9.83% , kadar abu 6.62%, kadar lemak 4,48%, kadar protein 11.98%, kadar serat kasar 32.07%, dan karbohidrat sebesar 35.02%. Karakteristik kombucha cascara, sebagai berikut total padatan terlarut 12 oBrix, pH 2.97, total gula 13.608 mg/L, aktivitas antioksidan 26.049 mg/L, kadar alkohol 0%, dan total asam tertitrasi 0.26 %. Karakteristik selai lembaran cascara, yaitu total padatan terlarut 30oBrix, pH 3.76, total gula 15.048 mg/L, dan aktivitas antioksidan 63.345 mg/L. Secara umum karakteristik ketiga produk sudah memenuhi standar produk komersial serta produk layak dikonsumsi.
Keyword: Cascara, Cibulao, Coffee pod skin

Judul: Cost Analysis of Cherry Coffee Peel-based Product Development at KTH Cibulao
Abstrak: KTH Cibulao merupakan kelompok tani hutan di Kampung Cibulao, Desa Tugu Utara, Kecamatan Cisarua, Kabupaten Bogor, menjadi salah satu sentra produksi kopi berkualitas tinggi di Jawa Barat. Petani kopi di sana mampu menghasilkan rata-rata 400 kg kopi dalam tiga bulan dan saat musim panen raya, total hasil panen mencapai 3 ton per hektar. Dalam pengolahan kopi, kulit buah kopi menjadi hasil samping yang melimpah dan mencapai 41,2% dari bobot buah kopi yang diolah. Melihat pasar yang meningkat untuk produk berbasis penyegar seperti kopi dan teh, maka dirancang pembuatan produk berbasis kulit buah kopi kering seperti teh cascara, kombucha cascara, dan selai lembaran cascara. Perancangan produk tersebut memerlukan perhitungan perencanaan produksi, harga pokok produksi, dan harga jual. Perencanaan produksi didasarkan pada ketersediaan bahan baku di KTH Cibulao. Rancangan ini mengacu pada basis 40 kg kulit buah kopi kering sebagai bahan baku dengan hasil produksi yaitu 100 kemasan teh cascara berukuran 100 g, 267 kemasan teh cascara jar berukuran 30 g, 2133 botol kombucha cascara berukuran 250 mL, dan 700 pak selai lembaran cascara berisi 4 lembaran dengan ukuran 8 x 8 cm dan berat 96 g. Adapun harga jual untuk setiap produk adalah sebagai berikut: teh cascara kemasan 100 g seharga Rp27.000, teh cascara jar kemasan 30 g seharga Rp23.000, kombucha cascara seharga Rp20.000, dan selai lembaran cascara seharga Rp20.000. Rancangan desain ini memberikan nilai tambah sebesar 22,04% bagi petani kopi di KTH Cibulao dan 77,96% untuk TIN IPB University sebagai pengelola olahan produk. Dengan demikian, desain ini diharapkan dapat mendukung perekonomian petani dan memberikan manfaat bagi para pemangku kepentingan dalam pengolahan produk kulit buah kopi., KTH Cibulao is a forest farmer group located in Kampung Cibulao, North Tugu Village, Cisarua District, Bogor Regency, and is one of the high-quality coffee production centers in West Java. Coffee farmers there are capable of producing an average of 4 quintals of coffee every three months, and during the peak harvest season, the total yield can reach 3 tons per hectare. In coffee processing, coffee peel become abundant by-products, constituting 41.2% of the processed coffee fruit's weight. Observing the growing market demand for refreshing products like coffee and tea, the design of products based on dried cherry coffee peel, such as cascara tea, cascara kombucha, and cascara jam, was formulated. The product design requires production planning, cost of production, and pricing calculations. The production planning is based on the availability of raw materials at KTH Cibulao. This design is based on 40 kg of dried cherry coffee peel-based as raw material, with the following production outputs 100 packages of cascara tea in 100 g size, 267 packages of cascara tea in 30 g size, 2133 bottles of cascara kombucha in 250 mL size, and 700 packs of cascara jam, each containing 4 sheets measuring 8 x 8 cm and weighing 96 g. The selling prices for each product are as follows cascara tea in 100 g packaging is priced at Rp27.000, cascara tea in 30 g packaging is priced at Rp23.000, cascara kombucha is priced at Rp20.000, and cascara jam is priced at Rp20.000. This design
Keyword: cascara, kulit buah kopi, nilai tambah, harga pokok produksi, perencanaan produksi, added value, cherry coffee peel, cost of production

Judul: Dynamic New Keynesian Model for Unemployment and Inflation Rate.
Abstrak: This paper deals with a scientific analysis of the equilibrium level of hiring, employment and unemployment. The basic model being used is a standard new Keynesian model, which states that utility function depends on consumptions and working hours. Utility maximization refers to a standard labour supply equation, with the marginal cost’s dynamics on new Keynesian model simply reflects movements in real wages and productivity. Furthermore, trade-off between output and inflation stabilization can be considered using the new Keynesian Phillips curve. Dynamic general equilibrium model is a model that can be used to study interactions between market imperfections and nominal rigidities, which is capable of overcoming the main shortcoming of the standard new Keynesian model. In the general equilibrium model there are three groups of the economy agents, namely households, firms and monetary authority. The results of this research science that bargaining processes between firms and workers will yield optimal wage. Increase in labour will cause wages to fall, but the unemployment rate can be reduced. An increase in the firm’s monopoly power will shift the labour demand curve downward, which will reduce the number of workers that firm is willing to hire for any given bargained wage.
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