Judul: Evaluasi Kualitas dan Keamanan Produk Naget Ayam pada Penyimpanan di Ruang Packing (15?) PT Belfoods Indonesia
Abstrak: Tuntutan penjaminan mutu dan keamanan di industri pangan terus meningkat sejalan dengan kesadaran masyarakat terhadap pentingnya aspek tersebut pada produk pangan. PT Belfoods Indonesia merupakan industri pengolahan pangan beku dengan bahan baku ayam yang terus berupaya untuk menjaga kualitas dan keamanan produk yang dihasilkan sehingga mampu menjadi produk makanan beku pilihan konsumen. Salah satu produk andalannya adalah naget ayam. Indonesia. Sebagai produk beku, penyimpanan naget ayam sangat diperhatikan untuk menjamin kesegaran produk. Namun, pada kenyataannya produk seringkali tertahan di ruang packing sebelum disimpan di cold storage. Produk beku yang terlalu lama disimpan di suhu yang tidak sesuai memungkinkan terjadinya thawing sehingga menimbulkan kerusakan secara fisik maupun mikrobiologi, yang tentunya berdampak pada mutu dan keamanan produk pangan. Penelitian ini bertujuan mengevaluasi kualitas dan keamanan produk naget ayam selama proses penyimpanan pada ruang packing dalam rentang waktu tertentu, yang meliputi sifat fisik dan jumlah mikroorganisme. Berdasarkan hasil penelitian, naget ayam sebaiknya tidak disimpan lebih dari 16 jam pada ruang packing meskipun kualitas naget ayam masih dalam kondisi normal atau sesuai standar perusahaan. Penyimpanan produk lebih dari 16 jam akan mengakibatkan tingkat cemaran mikroorganisme yang lebih tinggi atau bahkan melebihi standar BPOM Nomor 13 Tahun 2019 tentang Batas Maksimal Cemaran Mikroba dalam Pangan Olahan., Demands for quality assurance and safety in the food industry continue to increase, which aligns with public awareness of the importance of these aspects in food products. PT Belfoods Indonesia is a frozen food processing company that uses chicken as its raw material. It strives to maintain the quality and safety of the products produced to become the frozen food product of choice for consumers. One of its flagship products is chicken nugget. Indonesia. As a frozen product, great care is taken when storing chicken nugget to ensure product freshness. However, products are often stuck in the packing room before being stored in cold storage. Frozen products stored for too long at inappropriate temperatures can allow thawing to occur, causing physical and microbiological damage, which impacts the quality and safety of food products. This research aims to evaluate the quality and safety of chicken nugget products during the storage process in the packing room within a certain period, which includes physical properties and the number of microorganisms. Based on research results, chicken nugget should not be stored for more than 16 hours in the packing room even though the quality of the nugget is still in normal condition or according to company standards. Storing products for more than 16 hours will result in higher levels of microorganism contamination or even exceeding BPOM standards Number 13 of 2019 concerning Maximum Limits for Microbial Contamination in Processed Food.
Keyword: keamanan pangan, penyimpanan, kualitas pangan, naget ayam, olahan beku

Judul: Evaluation of Quality Control and Design of Food Safety Guidelines for Frozen Meat Products in the Home Food Industry.
Abstrak: Kesadaran konsumen terhadap keamanan pangan yang semakin meningkat telah mendorong produsen, terutama dalam sektor UMK dan industri rumah tangga pangan (IRTP), untuk lebih memperhatikan aspek keamanan dalam produksi pangan mereka. Penelitian ini bertujuan untuk mengevaluasi pengendalian mutu dan standar keamanan pangan yang diterapkan pada produk daging beku, serta menyusun rancangan pedoman terkait Sanitation Standard Operating Procedures (SSOP), Good Manufacturing Practices (GMP), dan Hazard Analysis and Critical Control Points (HACCP). Daging beku salah satu bahan pangan yang tergolong mudah rusak dan mudah terkontaminasi bakteri maupun patogen, sehingga diperlukan penerapan sistem keamanan pangan yang efektif. Metode yang digunakan dalam penelitian ini meliputi observasi langsung, wawancara, dan analisis dokumen untuk mengevaluasi penerapan SSOP, GMP, dan HACCP di IRTP. Hasil penelitian menunjukkan bahwa penerapan ketiga sistem tersebut secara signifikan dapat menjaga kualitas dan keamanan pangan pada produk daging beku. Evaluasi pengendalian mutu menunjukkan adanya peningkatan dalam menjaga kebersihan dan mencegah kontaminasi selama proses produksi. Penelitian ini juga menghasilkan pedoman yang terstruktur untuk penerapan SSOP, GMP, dan HACCP, yang dapat digunakan oleh IRTP sebagai panduan dalam meningkatkan standar keamanan pangan. Penerapan pedoman keamanan pangan ini diharapkan dapat membantu IRTP meminimalisir penyimpangan dalam kegiatan produksi, meningkatkan efisiensi, dan memastikan produk akhir yang aman dan berkualitas bagi konsumen. Kata kunci: daging beku, industri rumah tangga pangan, keamanan pangan, pengendalian mutu, Increasing consumer awareness of food safety has encouraged producers, especially in the MSE and home food industry (IRTP) sectors, to pay more attention to safety aspects in their food production. This research aims to evaluate quality control and food safety standards applied to frozen meat products, as well as draft guidelines related to Sanitation Standard Operating Procedures (SSOP), Good Manufacturing Practices (GMP), and Hazard Analysis and Critical Control Points (HACCP). Frozen meat is a food item that is classified as perishable and easily contaminated with bacteria or pathogens, so it is necessary to implement an effective food safety system. The methods used in this research include direct observation, interviews, and document analysis to evaluate the implementation of SSOP, GMP, and HACCP at IRTP. The research results show that the application of these three systems can significantly maintain the quality and food safety of frozen meat products. Quality control evaluation shows an improvement in maintaining cleanliness and preventing contamination during the production process. This research also produces structured guidelines for implementing SSOP, GMP, and HACCP, which can be used by IRTP as a guide in improving food safety standards. The implementation of these food safety guidelines is expected to help IRTP minimize deviations in production activities, increase efficiency, and ensure safe and quality final products for consumers. Keywords: food safety, frozen meat, home food industry, quality control
Keyword: daging beku, industri rumah tangga pangan, keamanan pangan, pengendalian mutu

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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