Judul: Perancangan Standar Prosedur Operasi Sistem Manajemen Alergen dalam Industri Perisa di PT.Givaudan Indonesia
Abstrak: Each year, millions of people have allergic reactions to food. Although most food allergies cause relatively mild and minor symptoms, some food allergies can cause severe reactions, and may even be life-threatening. There is no cure for food allergies. Strict avoidance of food allergens and early recognition and management of allergic reactions to food are important measures to prevent serious health consequences. Materials used in this study were secondary data from suppliers in regards with allergen information of material supplied to PT. Givaudan Indonesia based on Codex Alemanterius Commission WHO/FAO guidelines. There were 56 out of 964 materials used at PT. Givaudan Indonesia which had been identified as allergen. The allergen type in descending order were dairy (24), soybean (21), fish (11), crustacean (4), sulfites (3), egg (1) and cereal (1). Seven out of 56 materials had allergen combinations such as cereal and soybean; crustacean and soybean; dairy, fish and soybean; dairy and soybean; fish and soybean. These allergen information then furtherly studied at Focus Group Discussion was conducted to identify which processes need to monitor and control of the allergens. Focus Group Discussion members consists of related departments starts from Regulatory, Logistic, Production and Quality Control, led by Quality Assurance. Processed which had been identified as potential to have allergen contamination were purchasing, receiving material, materials storage, prebatching, production, finished good warehouse and distribution. Standard Operation Procedures were designed for each process on how to label, store, cleanse after production, packing and send to customer. The scope also cover the training and audit as well as customer communication.
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Judul: Penerapan Sistem Hazard Analysis Critical Control Point (HACCP) dan Statistical Process Control (SPC) dalam Proses Produksi Bumbu Penyedap Rasa di PT Unilever Indonesia Tbk
Abstrak: PT Unilever Indonesia Tbk built new factory, Lion, where new savoury products are produced. As one of big company who give priority to maintaining consistency and quality of products, food quality management sistem and quality control of process is very important to do. The purpose of this research is to apply HACCP system and SPC in monitoring the Aw quality of the product. The HACCP implementation methods used consisted of pre-requisite program HACCP study, and HACCP Plan preparation based on five steps and seven principles of HACCP and The SPC methods used consisted of observation and identification of problems, brainstorming, control chart, fishbone diagram, Pareto diagram and action plan. Based on the identification and determination of CCPs of HACCP, there are four groups material that are categorized as OPRP and one OPRP in the process. There is one CCP on filling process, which the product passed through a metal detector machine to prevent contamination of foreign matter in the form of metal. The conclusion of identification problem brainstorming is Aw out of standard spesification. measurement results of samples 252 batch using i-chart indicating that the process is out of control. Using fishbone diagram, why why analysis and pareto analysis,the causes of Aw problem were analyzed. it was observed that there were four main problems contributed to 82,5% causes of this case includes RH of packing hall outside the standard (25%), semi-finished goods packaging products during the process of filling opened (25%), RH of dehumidifier outside standard (25%), and unloading time (7.5%).The action plan such as material handling monitoring along the process has been implemented to solve the problems.
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Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf