Open AccessQuality control of palm oil crude (CPO) using six sigma method in PT Karya Tanah Subur West Aceh regency
Author(s) -
Sofiyanurriyanti,
Ghoustanjiwani Adi Putra,
Alwy Arifin
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1072/1/012052
Subject(s) - palm oil , pulp and paper industry , raw material , six sigma , acid value , palm , water content , agricultural engineering , mathematics , product (mathematics) , horticulture , environmental science , engineering , agricultural science , biology , operations management , physics , ecology , geotechnical engineering , quantum mechanics , lean manufacturing , chemical engineering , geometry
The rapid world demand for palm oil shows an increasing tendency towards product consumption in palm oil raw materials. PT. Karya Tanah Subur is a company engaged in processing fresh fruit bunches that produce palm oil and palm kernel. Six Sigma is a method used to provide solutions and find the cause of product defects by providing a proposed improvement in several stages. The results showed that the causes of CPO oil quality discrepancies were obtained in the cause-and-effect diagram analysis, namely factors of workers, production machinery, work methods, materials. While the defect per million opportunities in free fatty acid levels is 35,528, impurities content is 18,899 and water content is 14,719. Based on the value of the average sigma level for free fatty acid levels that is equal to 3.38, the level of impurities sigma value of 3.57 and the water content of the sigma value of 3.68 sigma. Proposed improvement of product defects mismatch with the 5W + 1H method, namely in free fatty acid levels, work system improvements in the sorting of fresh fruit bunches, provide training to operators in the selection of appropriate fruits while impurities by monitoring oil purification operators, machine maintenance cleaning periodically at the sorting station, periodic checking every hour, while the moisture content of the corrective action that must be taken is to supervise the sterilizer operator.