﻿{"id":29385,"date":"2025-11-10T16:21:56","date_gmt":"2025-11-10T09:21:56","guid":{"rendered":"https:\/\/nhathuocngocanh.com\/bp\/?p=29385"},"modified":"2025-11-10T16:21:56","modified_gmt":"2025-11-10T09:21:56","slug":"refined-rapeseed-oil","status":"publish","type":"post","link":"https:\/\/nhathuocngocanh.com\/bp\/refined-rapeseed-oil\/","title":{"rendered":"Refined Rapeseed Oil"},"content":{"rendered":"<p>Edition: BP 2025 (Ph. Eur. 11.6 update)<\/p>\n<h2>DEFINITION<\/h2>\n<p>Fatty oil obtained from the seeds of Brassica napus L. and Brassica campestris L. by mechanical expression or by extraction. It is then refined. A suitable antioxidant may be added.<\/p>\n<h2>CHARACTERS<\/h2>\n<h3>Appearance<\/h3>\n<p>Clear, light yellow liquid.<\/p>\n<h3>Solubility<\/h3>\n<p>Practically insoluble in water and in ethanol (96 per cent), miscible with light petroleum (bp: 40-60 \u00b0C).<\/p>\n<h3>Relative density<\/h3>\n<p>About 0.917.<\/p>\n<h3>Refractive index<\/h3>\n<p>About 1.473.<\/p>\n<h2>IDENTIFICATION<\/h2>\n<p>Identification of fatty oils by thin-layer chromatography (2.3.2).<\/p>\n<p>Results\u00a0 The chromatogram obtained is similar to the corresponding chromatogram shown in Figure 2.3.2.-1.<\/p>\n<h2>TESTS<\/h2>\n<h3>Acid value (2.5.1)<\/h3>\n<p>Maximum 0.5, determined on 10.0 g.<\/p>\n<p>Peroxide value (2.5.5, Method A) Maximum 10.0.<\/p>\n<h3>Unsaponifiable matter (2.5.7)<\/h3>\n<p>Maximum 1.5 per cent, determined on 5.0 g.<\/p>\n<h3>Alkaline impurities (2.4.19)<\/h3>\n<p>It complies with the test.<\/p>\n<h3>Composition of fatty acids (2.4.22, Method A)<\/h3>\n<p>Use the mixture of calibrating substances in Table 2.4.22.-3.<\/p>\n<p>Composition of the fatty-acid fraction of the oil:<\/p>\n<p>\u2014 palmitic acid: 2.5 per cent to 6.0 per cent,<\/p>\n<p>\u2014 stearic acid: maximum 3.0 per cent,<\/p>\n<p>\u2014 oleic acid: 50.0 per cent to 67.0 per cent,<\/p>\n<p>\u2014 linoleic acid: 16.0 per cent to 30.0 per cent,<\/p>\n<p>\u2014 linolenic acid: 6.0 per cent to 14.0 per cent,<\/p>\n<p>\u2014 eicosenoic acid: maximum 5.0 per cent,<\/p>\n<p>\u2014 erucic acid: maximum 2.0 per cent.<\/p>\n<h3>Water (2.5.32)<\/h3>\n<p>Maximum 0.1 per cent, determined on 1.00 g.<\/p>\n<h2>STORAGE<\/h2>\n<p>In an airtight, well-filled container, protected from light.<\/p>\n<h2>LABELLING<\/h2>\n<p>The label states whether the oil is obtained by mechanical expression or by extraction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Edition: BP 2025 (Ph. Eur. 11.6 update) DEFINITION Fatty oil obtained from the seeds of Brassica napus L. and Brassica campestris L. by mechanical expression or by extraction. It is then refined. A suitable antioxidant may be added. CHARACTERS Appearance Clear, light yellow liquid. Solubility Practically insoluble in water and in ethanol (96 per cent),&#8230;<\/p>\n","protected":false},"author":5,"featured_media":29386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[174],"tags":[],"class_list":["post-29385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medicinal-substances"],"acf":[],"_links":{"self":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/29385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/comments?post=29385"}],"version-history":[{"count":2,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/29385\/revisions"}],"predecessor-version":[{"id":29399,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/29385\/revisions\/29399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media\/29386"}],"wp:attachment":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media?parent=29385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/categories?post=29385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/tags?post=29385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}