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标题：THE EFFECTS OF BLEACHING EARTH DOSAGE AND TIME FOR BLEACHING TIME OF CRUDE PALM OIL VARIED DETERIORATION OF BLEACHABILITY INDEX (DOBI) TO THE QUALITY OF PRODUCT
其他标题：PENGARUH DOSIS BLEACHING EARTH DAN WAKTU PEMUCATAN CRUDE PALM OILYANG BERVARIASI DETERIORATION OF BLEACHABILITY INDEX (DOBI) TERHADAP MUTU PRODUK
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作者：Hasrul Abdi Hasibuan ; Lia Afriana ; Debby Tamba 等
期刊名称：Jurnal Teknologi Industri Pertanian
电子版ISSN：2252-3901
出版年度：2017
卷号：27
期号：1
DOI：10.24961/j.tek.ind.pert.2017.27.1.69
语种：English
出版社：Asosiasi Agroindustri Indonesia
摘要：Deterioration of bleachability index (DOBI) is one of the parameters in the refining process,to meet the quality of commercial crude palm oil (CPO);Miixing between high quality CPO and low quality CPO sometimes were undertaken.This study was conducted to assess the effect of dose of bleaching earth (BE) and time of bleaching process of various CPO quality,especially CPOs that had different DOBIs.The raw materials used were CPO with DOBIs of 0.65 to 4.80 which obtained from different raw materials,namely of fresh fruit bunches (FFB),palm oil mill (POM),waste from POM,and CPO from FFB heated at 120°C (during 30 and 60 minutes) and mixed with low quality CPO (ratio of 6:4 and 1:9).CPOs were bleached using BE doses of 0.5%,1.0%,2.5%,and 2% and time for 15,30,45,and 60 minutes.The results obtained from preparation of raw materials were CPO with DOBI of 3.9 and 4.8 (CPO from FFB 1 and 2),1.4 and 2.68 (CPO from POM 1 and 2) and 0.85 (CPO from waste POM 2) as well as 2.5 and 0.65 (heating) and 2.92 and 1.52 (mixing).The warming of CPO caused colour,carotene,and water content decreased,while free fatty acids (FFA) and peroxide value (PV) increased.The more CPO low quality mixed to CPO high quality caused carotene and DOBI decreased while colour,moisture content,FFB,and PV increased.The results of bleaching showed that increasing time and dose of BE caused colour,carotene,DOBI,and water contents decreased,while FFA increased.PV decreased with increasing doses of BE and for 30 minutes PV decreased then increased with increasing time.Bleaching process of CPO from mixing between high quality CPO and low quality CPO might increase FFA,despite the mixture resulted CPO had high DOBI.This would impact on the deodorization process.
其他摘要：Deterioration of bleachability index (DOBI) merupakan salah satu parameter dalam proses refining,untuk memenuhi kualitas CPO komersial,ada kalanya dilakukan pencampuran antara CPO bermutu baik dan CPO bermutu rendah.Penelitian ini dilakukan untuk mengkaji
关键词：crude palm oil;bleaching;bleaching earth;deterioration of bleachability index
其他关键词：crude palm oil;pemucatan;bleaching earth;deterioration of bleachability index