Analisis Warna Berbasis Smartphone Android dan Aplikasinya dalam Pendugaan Umur Simpan Konsentrat Apel

https://doi.org/10.22146/agritech.52956

Heru Kristanoko(1*), Feri Kusnandar(2), Dian Herawati(3)

(1) Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Institut Pertanian, Kampus IPB Dramaga, Bogor, 16680
(2) Southeast Asian Food and Agricultural Science and Technology Center, Institut Pertanian Bogor, Kampus IPB Dramaga, Bogor, 16680
(3) Southeast Asian Food and Agricultural Science and Technology Center, Institut Pertanian Bogor, Kampus IPB Dramaga, Bogor, 16680
(*) Corresponding Author

Abstract


Warna merupakan salah satu parameter mutu penting dari konsentrat apel. Teknologi kamera smartphone yang semakin akurat dan mudah dioperasikan berpotensi untuk mengukur warna konsentrat apel. Penelitian ini bertujuan untuk mengevaluasi penggunaan kamera smartphone Android dalam mengukur perubahan warna model konsentrat apel dan pendugaan umur simpan konsentrat apel. Sampel konsentrat apel disimpan pada suhu 8, 15, dan 35 °C masing-masing selama 25, 20, dan 14 hari. Nilai warna L*, a*, dan b* dari kolorimetri dibandingkan dengan nilai warna R’, G’, dan B’ kamera. Nilai warna relatif (𝓇, ℊ, dan 𝒷) digunakan untuk memperoleh hasil pengukuran warna dari kamera yang lebih akurat. Nilai R’ pada kamera memiliki korelasi tertinggi dengan nilai L* kolorimetri pada pengukuran model konsentrat (r=0,986). Nilai 𝓇 sebagai turunan nilai R’ dapat menurunkan simpangan baku dari 4,66% menjadi 1,36%. Model Arrhenius dari nilai 𝓇 memberikan prediksi umur simpan 16,7 minggu yang mendekati prediksi dari nilai L* (17,2 minggu) pada suhu 25 °C.


Keywords


Reaksi pencoklatan; analisis warna; smartphone

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DOI: https://doi.org/10.22146/agritech.52956

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