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Wilda Roeska Simatupang
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Control & Systems Engineering

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Application of SQC and ANOVA in Quality Control of Palm Kernel Oil Wilda Roeska Simatupang; Nos Sutrisno; Haniza, Haniza; Ninny Siregar; Budhi Santri Kesuma; Reakha Zulvatricia
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 8 No. 2 (2024): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v8i2.13169

Abstract

The measurement and control of free fatty acids (FFA), moisture content (MC), and impurity content (IC) using Statistical Quality Control (SQC) in the oil production process were crucial to ensure optimal quality of palm kernel oil (PKO). This study aimed to determine the variance influencing the quality of PKO using Anova analysis. Anova (Analysis of Variance) is a statistical test procedure used to test mean differences among more than two groups. The results of the study indicated that the analysis of variance Fcount values for free fatty acids, moisture content, and impurity content were smaller than the Ftable values, indicating that the measurement results or mean values of these four data groups did not have statistically significant differences.
Analisis Pengendalian Kualitas Crude Palm Oil (CPO) Menggunakan Metode Analysis of Variance (ANOVA) di PT. Sinar Gunung Sawit Raya Haniza, Haniza; Nos Sutrisno; Wilda Roeska Simatupang
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 9 No. 2 (2025): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v9i2.16769

Abstract

Kelapa sawit merupakan tanaman yang menghasilkan minyak sawit dan inti sawit, yang selanjutnya diolah menjadi CPO (Crude Palm Oil). Permasalahan yang terjadi adalah adanya penyimpangan nilai asam lemak bebas, kadar air, dan kadar kotoran dari batas maksimum yang telah ditetapkan perusahaan. Tujuan penelitian ini adalah untuk mengetahui varians yang memengaruhi kualitas CPO dan inti sawit menggunakan metode ANOVA. ANOVA (Analysis of Variance) merupakan prosedur uji statistik yang digunakan untuk menguji perbedaan rata-rata dari lebih dari dua kelompok. Hasil penelitian menunjukkan bahwa hampir seluruh data pengamatan terhadap FFA, kadar air, dan kadar kotoran berada dalam batas kendali. Hasil uji ANOVA untuk FFA, kadar air, dan kadar kotoran menunjukkan bahwa nilai Fhitung lebih kecil dibandingkan Ftabel (Fhitung < Ftabel), yang berarti tidak terdapat perbedaan yang signifikan antara rata-rata pengamatan terhadap kualitas CPO.
Co-Authors Budhi Santri Kesuma Haniza Ninny Asnidar Siregar Nos Sutrisno Reakha Zulvatricia