Clarity of blends of double-fractionated palm olein with low-erucic acid rapeseed oil |
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Authors: | I NorAini H Hanirah N Sudin Flingoh C H Oh T S Tang |
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Affiliation: | (1) Chemistry & Technology Division, Palm Oil Research Institute of Malaysia, Ministry of Primary Industries, P.O. Box 10620, 50720 Kuala Lumpur, Malaysia |
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Abstract: | Double-fractionated palm olein (DfPOo) fractions with iodine values (IV) of 60 and 65 were each blended with low-erucic acid
rapeseed (LEAR) oil in various proportions. Clarities of the blends at different temperatures were determined. Maximum levels
of DfPOo-IV60 and DfPOo-IV65 in blends that remained clear at 20°C for at least 120 d were 40 and 80%, respectively. At 15°C,
the maximum levels were 10 and 40%, and at 10°C, 10 and 20%, respectively. At 5°C, only a blend of 10% DfPOo-IV65 in LEAR
remained clear for 120 d. Maximum levels of DfPOo-IV60 and DfPOo-IV65 in blends that passed the cold test were 30% for both
palm oleins. Maximum levels of the palm oleins in blends with LEAR were higher than those of blends with soybean oil. Cloud
points were lower in palm olein/LEAR blends than those of palm olein/soybean oil blends, probably because LEAR contains less
saturated fatty acids than soybean oil. |
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Keywords: | Blends clarity cloud point double-fractionated palm olein fatty acid composition fractionation low-erucic acid rapeseed oil palm oil solid-fat content |
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