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All Journal Abdimas Jurnal Bahan Alam Terbarukan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Waste Technology KACANEGARA Jurnal Pengabdian pada Masyarakat Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Ternak Jurnal Ilmiah Cendekia Eksakta Jurnal Riset Rekayasa Elektro ASEAN Journal of Chemical Engineering Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Khatulistiwa Dedikasi: Jurnal Pengabdian kepada Masyarakat Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran
Ria Wulansarie, Ria
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Journal : Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran

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Addition of Germicidal UV-C Radiation Equipment in the Sterilization Process to Extend the Shelf Life of Cow's Milk Wulansarie, Ria; Rusiyanto, Rusiyanto; Dino Alfian, Rangga; Diyah Ayu Utami, Kiki; Rahmah, Ladunia; Izza Arinanda, Miftakhul; Dyah Pita Rengga, Wara
Rekayasa Vol. 22 No. 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v22i1.6239

Abstract

Cow's milk provides essential human nutrients, including calcium, protein, and minerals. However, it is highly susceptible to bacterial contamination, which leads to rapid spoilage. Pasteurization is the most common method to process cow's milk, effectively reducing microbial levels. However, some heat-resistant bacteria can survive the pasteurization process, limiting its effectiveness in ensuring long-term milk safety. This study investigates the use of chemical engineering technology by combining pasteurization and UV-C radiation methods, either sequentially or simultaneously, to improve the effectiveness of milk sterilization. The use of combined techniques aims to leverage the strengths of both processes, achieving superior microbial reduction and extending milk shelf life. Different operating temperatures and radiation durations were tested to identify optimal processing conditions. The findings revealed that this combined approach achieved a significant bacterial reduction of 99.95%, decreasing the microbial count from an initial 1.9 × 10⁶ cfu/mL to 7.0 × 10² cfu/mL. Moreover, the shelf life of the milk was extended to five months, demonstrating the effectiveness of the hybrid method. The study also monitored the milk's acidity (pH) throughout the process, which remained within optimal conditions of 6.5 to 6.8. This indicates that the combined treatment does not compromise milk quality. Integrating pasteurization with germicidal UV-C radiation offers a promising alternative for milk sterilization, improving microbial control and significantly increasing the shelf life of cow's milk. The results suggest that this dual-method approach could be a valuable advancement in dairy processing, enhancing both safety and efficiency in the production and preservation of milk.
Co-Authors Agung Ari Wibowo Alfa Faridh Suni Amelia Fitri Ardhiansyah, Hanif Astri, Mutiara Sandina Bahlawan, Zuhriyan Ash Shiddieqy Bayu Triwibowo Bayu Wiratama, Bayu Budi Sunarko Chafidz, Achmad Dewi, Dira Fitria Dhoni Hartanto Diana, Savira Rahma Dino Alfian, Rangga Diyah Ayu Utami, Kiki Diyanti, Eka Djuniadi Djuniadi Dyah Nabila Yulianto Fandika, Putri Maharani Adinda Fauzan Amrulloh Hadikawuryan, Danang Subarkah Hardi Suyitno Heni Pujiastuti Hibatullah, Ridwan Dani Husaen, Paisal Ichwan, Rizky Iffat Ganjar Fadhila Prakasita Imani, Nadya Alfa Cahaya Imanullah, Kautsar Taqi Irene Nindita Pradnya Isna Pratiwi Izza Arinanda, Miftakhul Khoiroh, Ianatul Kriswanto Kriswanto Kriswanto Kriswanto, Kriswanto Maftukhaturrizqiyah, Maftukhaturrizqiyah Maharani Kusumaningrum Maksiola, Masni Maulida Zakia Miftakhul Izza Arinanda Muhammad Fajrul Rohman Nada, Athiya Rihadatul ‘Aisy Qothrun Nanggala, Pragusti Lintang Adhi Nanik Wijayati Nina Farliana Nuroddin, Handrian Permanadewi, Indrasukma Pradnya, Irene Nindita Prakasita, Iffat Ganjar Fadhila Pramesti, Amadea Vaskallya Pramitha, Deva Aurelya Pratama, Muhammad Herdi Prima Astuti Handayani Purwana, Yulian Candra Rahmah, Ladunia Ratna Dewi Kusumaningtyas Ridwan Dani Hibatullah Riza Mazidu Sholihin Rusiyanto Rusiyanto Rusiyanto, Rusiyanto S. Bismo Sadan, Serlia Fitri Salsabila, Cindy Aulia Salsabila, Luvena Sawiji, Kurnia Ayu Setiadi, Jesicca Ananty Nurul Suwandi, Luluk Arvi Cahyaning Syahputra, Adhika Bintang Syamsul Rijal Tunggul Pawenang, Eram Tunggul Pawenang, Eram Ulfayanti, Isna Mardya Wara Dyah Pita Rengga Wati, Afifah Sagita Fitria Widi Astuti Wijaya, Anggit Wijayanti, Reni Titis Wijayatim, Nanik Wulansari, Durroti Zuhriah Yoga Agung Prabowo Zhafira Yasmin