Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage

In accelerated stockpilingat 65 oC for 24 days, an oxidative stability test was performed on crudes and re-fined kenaf seed oil. The outcomes revealed which refined oil underwent higher oxidation than the crude oil, as indicated by the peroxide value (40.55 meq/kg),...

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Main Authors: Chew, Sook Chin, Tan, Chin Ping, Lin, Kar Nyam
Format: Article
Language:English
Published: Blue Eyes Intelligence Engineering & Sciences Publication 2019
Online Access:http://psasir.upm.edu.my/id/eprint/81901/1/Quality%20of%20chemical%20re-fined%20kenaf%20.pdf
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author Chew, Sook Chin
Tan, Chin Ping
Lin, Kar Nyam
author_facet Chew, Sook Chin
Tan, Chin Ping
Lin, Kar Nyam
author_sort Chew, Sook Chin
collection UPM
description In accelerated stockpilingat 65 oC for 24 days, an oxidative stability test was performed on crudes and re-fined kenaf seed oil. The outcomes revealed which refined oil underwent higher oxidation than the crude oil, as indicated by the peroxide value (40.55 meq/kg), p-Anisidine value (18.78) and total oxidation value (99.87) in re-fined oils at day 24. A free fatty acid value in the refined oil did not differ significantly and remained less than 1% during accelerated storage. After accelerated storage, the phenolic substance and anti-oxidant movement of re-fined oil was altogether lesser than crude oil. During accelerated storage, refined oil decreased by 67% tocopherol substance and 12.1 % phytosterol substance. After storage, there was no huge contrast in a content of tocopherol and phytosterol for crude and re-fined oils. The rate of tocopherol and phytosterol degradation in re-fined oil during storage was lesser than in unrefined petroleum (crude oil). Un-saturated fatty acids decreased slightly during storage, together with a slight increase in saturated fats in kenaf seed oil.The refining process reduced the oxidative steadiness of kenaf seed oil, but the refined oil could able to maintain good quality in the estimation of Free Fatty Acid (FFA) and a composition of fatty acid, and to protect tocopherols and phytosterols.
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spelling upm.eprints-819012021-08-27T23:23:55Z http://psasir.upm.edu.my/id/eprint/81901/ Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage Chew, Sook Chin Tan, Chin Ping Lin, Kar Nyam In accelerated stockpilingat 65 oC for 24 days, an oxidative stability test was performed on crudes and re-fined kenaf seed oil. The outcomes revealed which refined oil underwent higher oxidation than the crude oil, as indicated by the peroxide value (40.55 meq/kg), p-Anisidine value (18.78) and total oxidation value (99.87) in re-fined oils at day 24. A free fatty acid value in the refined oil did not differ significantly and remained less than 1% during accelerated storage. After accelerated storage, the phenolic substance and anti-oxidant movement of re-fined oil was altogether lesser than crude oil. During accelerated storage, refined oil decreased by 67% tocopherol substance and 12.1 % phytosterol substance. After storage, there was no huge contrast in a content of tocopherol and phytosterol for crude and re-fined oils. The rate of tocopherol and phytosterol degradation in re-fined oil during storage was lesser than in unrefined petroleum (crude oil). Un-saturated fatty acids decreased slightly during storage, together with a slight increase in saturated fats in kenaf seed oil.The refining process reduced the oxidative steadiness of kenaf seed oil, but the refined oil could able to maintain good quality in the estimation of Free Fatty Acid (FFA) and a composition of fatty acid, and to protect tocopherols and phytosterols. Blue Eyes Intelligence Engineering & Sciences Publication 2019-03 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81901/1/Quality%20of%20chemical%20re-fined%20kenaf%20.pdf Chew, Sook Chin and Tan, Chin Ping and Lin, Kar Nyam (2019) Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage. International Journal of Innovative Technology and Exploring Engineering, 8 (5 spec.). pp. 161-165. ISSN 2278-3075 https://www.ijitee.org/download/volume-8-issue-5s/
spellingShingle Chew, Sook Chin
Tan, Chin Ping
Lin, Kar Nyam
Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title_full Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title_fullStr Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title_full_unstemmed Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title_short Quality of chemical re-fined kenaf (Hibiscus cannabinus l.) seed oil during accelerated storage
title_sort quality of chemical re fined kenaf hibiscus cannabinus l seed oil during accelerated storage
url http://psasir.upm.edu.my/id/eprint/81901/1/Quality%20of%20chemical%20re-fined%20kenaf%20.pdf
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