Production of high quality castile soap from high rancid olive oil

Non-edible olive oil, characterized by high acid and peroxide values as well as deep in color and unpleasant odor, was used to produce a fine castile soap (soap sample nº. 1). Semi-fine virgin olive oil was also used to produce the standard castile soap (soap sample nº. 2). The obtained results illu...

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Main Author: Adel Y. Girgis
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2003-09-01
Series:Grasas y Aceites
Subjects:
Online Access:http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/235
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author Adel Y. Girgis
author_facet Adel Y. Girgis
author_sort Adel Y. Girgis
collection DOAJ
description Non-edible olive oil, characterized by high acid and peroxide values as well as deep in color and unpleasant odor, was used to produce a fine castile soap (soap sample nº. 1). Semi-fine virgin olive oil was also used to produce the standard castile soap (soap sample nº. 2). The obtained results illustrated that the unpleasant odor was disappeared in soap nº. 1 compared to the standard soap (weakly like oil). Also, there were remarkable that no high differences were observed in all physical and chemical properties (appearance, smooth surface, erosion from hand-washing, consistency, moisture content, total fatty acids, free alkali and salt content) in the two fresh soap samples. Whilst, the color in soap sample nº. 1 was fuscous green color compared to the standard soap (which was white to pale yellow). Soap samples were stored on a shelf at room temperature for 6 months showed some changes in their chemical properties. On the other hand, physical properties of the above two samples were improved after the storage period (6 months) where their structures became very firm with high lather volume and rates of their erosions from hand-washing were retrenched except, the color in soap sample nº. 1 was not improved which was dark green color. Therefore, the present study recommend to use non-edible olive oil as unusually fatty material to produce a fine castile soap (high smooth surface, fairly lather and high glossy appearance) as an alternative to edible olive oil (which is very expensive) and also to reduce the cost of castile soap manufacturing.
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spelling doaj.art-213db1f3a5a946c7bfaa540d5d0414be2022-12-21T18:50:46ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42142003-09-0154322623310.3989/gya.2003.v54.i3.235233Production of high quality castile soap from high rancid olive oilAdel Y. Girgis0Agricultural Res. Centre, Food Tech. Res. Institute, Oils and Fats ResNon-edible olive oil, characterized by high acid and peroxide values as well as deep in color and unpleasant odor, was used to produce a fine castile soap (soap sample nº. 1). Semi-fine virgin olive oil was also used to produce the standard castile soap (soap sample nº. 2). The obtained results illustrated that the unpleasant odor was disappeared in soap nº. 1 compared to the standard soap (weakly like oil). Also, there were remarkable that no high differences were observed in all physical and chemical properties (appearance, smooth surface, erosion from hand-washing, consistency, moisture content, total fatty acids, free alkali and salt content) in the two fresh soap samples. Whilst, the color in soap sample nº. 1 was fuscous green color compared to the standard soap (which was white to pale yellow). Soap samples were stored on a shelf at room temperature for 6 months showed some changes in their chemical properties. On the other hand, physical properties of the above two samples were improved after the storage period (6 months) where their structures became very firm with high lather volume and rates of their erosions from hand-washing were retrenched except, the color in soap sample nº. 1 was not improved which was dark green color. Therefore, the present study recommend to use non-edible olive oil as unusually fatty material to produce a fine castile soap (high smooth surface, fairly lather and high glossy appearance) as an alternative to edible olive oil (which is very expensive) and also to reduce the cost of castile soap manufacturing.http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/235castile soapchemical propertiesedible olive oilhigh rancid olive oilphysical propertiesstorage
spellingShingle Adel Y. Girgis
Production of high quality castile soap from high rancid olive oil
Grasas y Aceites
castile soap
chemical properties
edible olive oil
high rancid olive oil
physical properties
storage
title Production of high quality castile soap from high rancid olive oil
title_full Production of high quality castile soap from high rancid olive oil
title_fullStr Production of high quality castile soap from high rancid olive oil
title_full_unstemmed Production of high quality castile soap from high rancid olive oil
title_short Production of high quality castile soap from high rancid olive oil
title_sort production of high quality castile soap from high rancid olive oil
topic castile soap
chemical properties
edible olive oil
high rancid olive oil
physical properties
storage
url http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/235
work_keys_str_mv AT adelygirgis productionofhighqualitycastilesoapfromhighrancidoliveoil