Update Artikelilmiah: 7368

KURNIA WARDANI

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Abstrak (Bhs. Indonesia)

Guna penyediaan buah yang berkualitas dan disukai konsumen maka produsen perlu melakukan sortasi karena kualitas buah biasanya sangat beragam meskipun berasal dari pohon yang sama. Sejalan dengan hal tersebut Margiwiyatno (2013) telah merancang alat deteksi cepat kualitas buah yaitu Rapid Quality Detector (Prototype II) yang memanfaatkan sensor LDR dan senter. Tujuan dari penelitian ini adalah (1) mengkaji karakteristik luaran deret sensor LDR terhadap indikator kualitas (warna, kekerasan, kadar klorofil, dan kadar gula) buah jambu biji merah, (2) mengetahui hubungan antara perubahan indikator kualitas buah jambu biji merah terhadap  respon  deret sensor LDR. Perlakuan yang diterapkan dalam penelitian ini adalah lama penyimpanan diperhitungkan mulai saat pengamatan dilakukan (hari ke-1) sampai buah tidak disukai konsumen. Pengukuran mutu buah dilakukan secara destructive dan non destructive. Perlakuan destructive dan non destructive dibagi menjadi dua faktor yaitu kondisi buah (P) dengan masing-masing 3 perlakuan (Utuh, impact, pressure) dan lama penyimpanan (H). Analisis yang dilakukan adalah analisis grafik. Hasil dari analisis ini berupa kecenderungan variabel yang diukur serta hubungan antara indikator kualitas buah jambu biji merah dan resistansi sensor deret LDR. Hasil penelitian menunjukkan bahwa Alat Rapid Quality Detector  dapat merespon perubahan buah jambu biji merah terhadap indikator kualitas buah, Hubungan respon sensor dengan kekerasan memiliki persamaan y = 25,407x2 – 1181,6x + 14373 dengan nilai R2 = 0,8773 perlakuan utuh, impact y = 9,3077x2 – 380,66x + 4388,4 dengan nilai R2 = 0,7925, dan perlakuan pressure y = 18,974x2 – 856,59x + 10281 dengan nilai R2  = 0,9305. Hubungan respon sensor dengan total padatan terlarut memiliki memiliki persamaan perlakuan utuh y = -0,1706x2 + 8,4901x – 100,23 dengan nilai R² = 0,5558, perlakuan impact y = -0,4099x2 + 20,029x – 239,27 dengan nilai R² = 0,4179, perlakuan pressure y = -0,2082x2 + 10,585x – 129,27 dengan nilai R² = 0,6368.

Abtrak (Bhs. Inggris)

Sortage is need to keep the quality of fruits although the fruits come from the same tree.In line with this matter, Margiwiyatno (2013) had designed a fast qulaity fruit detector, namely Rapid Quality Detector (Prototype II) which utilize the LDR sensor and flashlight. The purpose of this research is to assest the characteristic series LDR sensor outputs to indicators of quality (color, hardness, chlorophyll content, and sugar content) of red guava. Knowing the relationship between changes in the indicators of red guava fruit quality on the response of the sensor LDR series. Materials used in this study were red guava fruit from the village Ketengger, Baturaden-Banyumas. Treatment applied in this study were taken into account storage time began when the observations were made (day 1) until the fruit is not preferred by consumers.Fruit quality measurements conducted destructive and non-destructive.destruktive measurement and non destruktive divided into two factors: the condition of the fruit (P) with each of the 3 treatment (treatment of intact, impact, pressure) and storage time (H).Analysis is conducted graph analysis. The results of this analysis in the form of inclination measured variables and the relationship between indicators of red guava fruit quality and resistance sensor LDR series. The results showed that the Rapid Quality Tool Detector can respond to changes in red guava fruit on fruit quality indicators.Relationship between the response to the violence senor has the equation y = 25,407x2 – 1181,6x + 14373 the valueof determination R2 = 0,8773 treatment of intact, impact  treatment y = 9,3077x2 – 380,66x + 4388,4 the valueof determination R2 =0,7925, and pressure treatment pressure y = 18,974x2 – 856,59x + 10281 the valueof determination R2 =0,9305.The relationship between the sensor response with total dissolved solids have equal equation treatment of intact  y = -0,1706x2 + 8,4901x – 100,23 the valueof determination R²=0,5558, impact treatment y = -0,4099x2 + 20,029x – 239,27the valueof determination R²=0,4179, pressure treatment y = -0,2082x2 + 10,585x – 129,27 the valueof determination R² = 0,6368.

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