Judul: Processed Product Design Based on Coffee Fruit Peel at KTH Cibulao
Abstrak: Petani yang masuk ke dalam Kelompok Tani Hutan (KTH) Cibulao rata-rata menghasilkan 4 kwintal kopi per 3 bulan, pengolahan biji kopi menjadi satu- satunya keluaran dari pengolahan buah kopi, sehingga dengan presentase 40% terdapat hasil samping berupa kulit buah kopi yang kaya akan antioksidan, serat tinggi dan keunggulan lainnya yang dapat dimanfaatkan menjadi produk olahan pangan sebagai nilai tambah dari kulit buah kopi. Penelitian ini bertujuan mengembangkan produk olahan pangan dengan memanfaatkan hasil samping kulit buah kopi Cibulao dengan menetapkan alternatif solusi berdasarkan kriteria keberhasilan desain produk yaitu enak, mudah dikonsumsi, segar, dan menyehatkan dengan memperhatikan ketersediaan bahan baku dan alat sederhana. Rancangan desain produk berbasis kulit buah kopi pada penelitian ini sudah diuji pada produk dan menghasilkan antioksidan pada nilai IC50 produk kombucha cascara sebesar 26.049 mg/l ppm yang merupakan kategori antioksidan sangat kuat karena nilainya kurang dari 50 ppm, serta telah melewati tahap uji konsumen melalui metode hedonik skala 1-4 dengan kriteria (1) Sangat Tidak Suka ; (2) Tidak Suka ; (3) Suka ; (4) Sangat Suka. dengan hasil perhitungan rata-rata pada setiap parameter masuk ke dalam katergori suka dan sangat suka., Farmers who are part of the Cibulao Forest Farmer Group (KTH) produce an average of 4 quintals of coffee per 3 months, coffee bean processing is the only output from coffee cherries processing, so that with a percentage of 40% there is a by-product in the form of rich coffee berry skin. of antioxidants, high fiber and other advantages that can be utilized into processed food products as added value from coffee pod skins. This research aims to develop processed food products by utilizing the by-products of Cibulao coffee pod skin by determining alternative solutions based on product design success criteria, namely delicious, easy to consume, fresh, and healthy by taking into account the availability of raw materials and simple tools. The product design based on coffee pods in this study has been tested on products and produces antioxidants at the IC50 value of kombucha cascara products of 26,049 mg/l ppm which is a very strong antioxidant category because the value is less than 50 ppm, and has passed the consumer test stage through the method hedonic scale 1-4 with criteria (1) Very Dislike; (2) Dislike ; (3) Likes ; (4) Really Like. with the results of the average calculation on each parameter into the like and really like category.
Keyword: cascara, cherry coffee peel, Cibulao, kombucha, jam slices

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: 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.
Keyword: