Rancang Bangun Sistem Ozonisasi Air Sebagai Upaya Sterilisasi Pertumbuhan Bakteri Pada Buah Apel Berbasis ESP-32
Abstract
Fruit is a good source of nutrients that contain vitamins, minerals, fiber and other important nutrients. In addition, fruit is also one of the foods favored by the community. Fruit can be consumed properly if it has good quality and resistance. Therefore, in this research, the design and construction of a test system for an ozone water purifier for sterilizing apples based on the ESP 32 microcontroller is integrated with a desktop application. This study aims to test the resistance of apples sterilized with ozone water to apples that are not sterilized. In the testing phase, the first apples were washed with ozone and washed with plain water. after that tested the number of bacteria. This test was carried out in the bioscience lab with an interval of 1 and 2 days to determine the results of the bacteria contained in apples. In the 1day treatment, the results of this study found that there were 4.4 x 102 cfu/gr bacteria in apples after being sterilized using ozone water. Apples that were not sterilized had 15 x 102 cfu/gr of bacteria. In the 2-day treatment, the results of this study found that there were 4.5 x 102 cfu/gr bacteria in apples after being sterilized using ozone water. Apples that were not sterilized had 15 x 102 cfu/gr of bacteria. From this study it was found that the results of sterilization on apples had a lower number of bacteria than apples that were not sterilized.
Keywords: ESP 32; Apple ; Bacteria ; ozonisation; Microcontroller
ABSTRAK
Buah merupakan salah satu sumber nutrisi baik yang mengandung vitamin, mineral, serat, dan nutrisi penting lainnya. Selain itu, buah juga merupakan salah satu makanan yang digemari oleh masyarakat. Buah dapat dikonsumsi dengan baik apabila memiliki kualitas dan ketahanan yang bagus. Oleh karena itu, pada penelitian ini dilakukan rancang bangun sistem pengujian terhadap ozon water purifier untuk pensterilan buah apel berbasis mikrokontroller ESP 32 terintegrasi dengan aplikasi desktop. Penelitian ini bertujuan untuk menguji ketahanan buah apel yang disterilkan dengan ozon air dengan buah apel yang tidak disterilkan. Tahap pengujian, pertama buah apel dilakukan pencucian dengan ozon dan pencucian dengan air biasa. setelah itu diuji jumlah bakterinya. Pengujian ini dilakukan pada laboratorium Bioscience dengan selang waktu 1 dan 2 hari untuk mengetahui hasil bakteri yang terkandung dalam buah apel. Pada perlakuan 1 hari, hasil dari penelitian ini didapatkan bahwa terdapat 4,4 x 102 cfu/gr bakteri pada buah apel setelah dilakukan sterilisasi menggunakan ozon air. Buah apel yang tidak dilakukan proses sterilisasi memiliki 15 x 102 cfu/gr bakteri. Pada perlakuan 2 hari, hasil dari penelitian ini didapatkan bahwa terdapat 4,5 x 102 cfu/gr bakteri pada buah apel setelah dilakukan sterilisasi menggunakan ozon air. Buah apel yang tidak dilakukan proses sterilisasi memiliki 15 x 102 cfu/gr bakteri. Dari penelitian ini didapatkan bahwa hasil sterilisasi pada buah apel memiliki jumlah bakteri yang lebih sedikit daripada buah apel yang tidak dilakukan sterilisasi.
Kata Kunci: ESP 32; Buah Apel; Bakteri; ozonisasi; Mikrokontroller
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References
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