Judul: Correlation Analysis between Iodine Value and Solid Fat Content on Oil Blend of Product X at PT XYZ
Abstrak: Analisis kandungan lemak padat pada proses produksi produk x di PT XYZ perlu dilakukan untuk menentukan kondisi kristalisasi yang sesuai karena dapat berpengaruh terhadap tekstur produk. Namun, waktu analisis cukup lama sehingga dibutuhkan analisis alternatif, seperti analisis bilangan iod. Penelitian ini bertujuan menganalisis korelasi antara bilangan iod dan kandungan lemak padat pada campuran minyak produk x dan menghasilkan persamaan regresi untuk menentukan kandungan lemak padat sehingga proses produksi lebih efisien. Analisis yang dilakukan terdiri dari bilangan iod, kandungan lemak padat, komposisi asam lemak, dan titik leleh pada campuran minyak dengan kombinasi formula berupa rasio kelapa sawit : olein sawit : stearin sawit. Analisis kandungan lemak padat dilakukan pada suhu 10, 20, 30, 40 °C. Hasil penelitian menunjukkan hubungan korelasi negatif yang kuat antara bilangan iod dan kandungan lemak padat dengan koefisien determinasi yang tinggi. Hasil validasi persamaan regresi menunjukkan persentase akurasi yang tinggi pada suhu 10, 20, 30 °C, sedangkan pada suhu 40 °C lebih rendah. Berdasarkan hasil tersebut, persamaan regresi dapat dijadikan alternatif bagi perusahaan. Hasil uji titik leleh menunjukkan nilai yang meningkat dari formula I sampai VII sesuai dengan komposisi olein yang menurun dan stearin yang meningkat, Solid fat content (SFC) analysis in the production process of product x is required to determine the appropriate crystallization condition which will affect the product texture. However, SFC analysis takes a long time, therefore an alternative analysis is needed such as iodine value (IV) analysis. This research aims to analyze the correlation between IV and SFC of product x’ oil blend and provide a regression equation to determine the SFC, therefore the production process will be more efficient. The conducted analysis consists of IV, SFC, fatty acid content and slip melting point (SMP) on oil blends with the formula combination ratio of palm oil : palm olein : palm stearin. The SFC was observed in temperature of 10, 20, 30, 40 °C. The result showed a strong negative correlation between IV and SFC with a high determination coefficient. The validation showed a high accuracy at 10, 20, 30 °C, while at 40 °C showed lower value. Based on these results, regression equation can be used as an alternative for the company. The SMP analysis results showed an increasing value from formula I to formula VII according to the decreasing olein and increasing stearin component.
Keyword: Bilangan Iod, Kandungan Lemak Padat, Korelasi, Minyak Sawit, Correlation, Iodine Value, Palm Oil, Solid Fat Content

Judul: Kajian Pencampuran Minyak dan Lemak (Minyak Kelapa Sawit, Stearin, dan Minyak Kelapa) terhadap Karakteristik Minyak Campurannya di PT Sinar Meadow International Indonesia
Abstrak: PT Sinar Meadow International Indonesia is a manufacture industry producing margarine and shortening. Both products are made from several type of vegetable oil or fat that combined together into an oil blend. Formulation of the oil blend could affect the characteristic of the margarine and shortening products. Oil blend in this research consist of (1) palm oil (PO)/palm stearin (PS), (2) palm oil (PO)/coconut oil (CNO), and (3) PO/PS/CNO. Oil blend characteristics such as solid fat content (SFC) and slip melting point (SMP) of PO, PS, CNO and their binary blends at 1:1, 1:0, 1:9, 2:8, 3:7, 4:6, 6:4, 7:3, 8:2, 9:1 ,0:1 (w/w) were evaluated and compared with theoretical approach so that the correlation of that parameter could be analyzed. SFC was observed in four temperature observation; 10⁰C, 20⁰C, 30⁰C and 40⁰C using low-resolution Nuclear Magnetic Resonance (NMR). Oil blend PS/PO is currently having linier predictable SFC curve and there is no significance difference from theoretical curve. SFC curve for CNO/PO is linear only when observed in 10⁰C and 30⁰C. CNO/PO/PS with fixed proportion of 10%CNO having SFC curve pattern like oil blend PO/PS. SFC curve of CNO/PO/PS with varied CNO proportion is sharper. SFC curves from oil blend PO/CNO and CNO/PO/PS are significantly different from theoretical value. Higher proportion of PO resulting in higher SMP, while increased proportion of CNO is decreasing SMP. There is significant difference SMP in each formulation of oil blends.
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Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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