Gulf Standard                                                                                                                   GSO…/2012  
هيئة التقييس لدول مجلس التعبون لدول الخليج العربية 
STANDARDIZATION ORGANIZATION FOR G.C.C (GSO) 
  
Initial draft 
GSO / DS …/201 2    
 
   
 زيت جنين القمح المعد للطعام 
Edible wheat germ oil 
 
 
 
 
Prepared by: 
 Gulf technical committee for sector standards of  
Food and agriculture products 
This document is a draft Gulf standard circulated for comments, it is therefore, 
subject to alteration and modification, and may not be referred as a Gulf standard, 
until approved by the Board of Directors                                                                                
                                                       
 
 
  
  
 ICS: 67.  Gulf Standard                                                                                                                   GSO…/2012  
Foreword 
 
GCC Standardization Organization (GSO) is a regional Organization which consists 
of the National Standards Bodies of GCC member States. One of GSO main 
functions are to issue Gulf Standards/ Technical regulations through specialized 
technical committees (TCs). 
GSO through the technical program of committee TC No.(5) “Gulf technical 
committee for sector Standards of Fo ods and Agricultural products” has prepared 
the Gulf Standard  for "  " Edible wheat germ oil" 
 
This Standard has been approved as a Gulf Technical Regulation without any 
technical modifications by GSO Board of Directors in its meeting No. (    ), held on    
 /    /     H,      /      /     G. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Gulf Standard                                                                                                                   GSO…/2012  
 
Edible wheat germ oil 
1-Scope:  
This Gulf technical regulation  is concerned with basic requirements and description 
parameters for edible wheat germ oil (virgin/ refined) and not for medical uses. 
 
2-Complementary Standards:   
2.1 GSO 9 "Labeling of prepackaged food stuffs". 
2.2 GSO 15 "Animal and vegetables fats and oils - Sampling".  
2.3 GSO 16 "Physical and chemical methods for testing edible vegetable oils and 
fats". 
2.4 GSO 21 "Hygienic regulations  for food plants and their personnel".  
2.5 GSO 150 "Expiration periods of food products". 
2.6 GSO 839 " Food packages - Part 1: General requirements".  
 
3-Definitions:  
3.1 Virgin wheat germ oil: 
Oil obtained it from wheat germ for verities ( Triticum ssp. ) without alter of oil 
nature, by mechanical treat ment as pressing or spiral pressing without using 
temperature, the oil may be purify by washing with water, sedimentation, filtration 
and centrifuge. 
3.2 Refined wheat germ oil: 
Oil obtained it from wheat germ be extraction either with mechanical treatment or 
organic solvents, it purify with refining (neutralization), bleaching and deodorized to 
become fit for human consumption. 
 
4-Requirements:  
4.1 The oil shall be extracted from wh eat germ.  
1 Gulf Standard                                                                                                                   GSO…/2012  
4.2 The production shall be carried out according the requirements mentioned in 
Gulf Standard stated in Item (2.  
4.3 The oil shall have characteristic color and odor for the verity  
4.4 The oil shall be free from foreign odor and tas te.  
4.5 The oil shall be free from turbidity and from raw materials which extracted from 
it, and from materials which used in its purify. 
4.6 The oil shall be free from any other oils or fats.  
4.7 It is not allow adding any additives to virgin wheat germ oil.  
4.8 The moisture and volatile matters content shall not exceed than 0.2% (W/W) at 
105°C.  
4.9Insoluble impurities shall not exceed than 0.05% (W/W).  
4.10 Unsaponifiable matters shall be ranged between 2 -5% by weight.  
4.11 The acid value shall not exceed than 4 mg potassium hydroxide/ gm virgin oil, 
and not exceed than 0.6 mg potassium  hydroxide/gm refined oil.  
4.12 Peroxide number shall not exceed than 15 mill equivalent active oxygen/ kg 
virgin oil, and  shall not exceed than 10 mill equivalent active oxygen/ kg  refined oil.  
4.13 The metallic elements shall not exceed as following (mg/kg):  
Arsenic Lead  copper Iron  
0.1 0.1 0.4 5 Virgin wheat germ oil 
0.1 0.1 0.1 1.5 Refined wheat germ oil 
 
4.14 Saponifiable content shall not exceed than 0.005% (W/W).  
4.15 The content of fatty acids of oil calculated as percentage from the total of fatty 
acids measured with gas chromatography shall be ranged between:  
Palm itic acid (C  16:0) 11-16 
Stearic acid (C 18: 0) 1-6 
Oleic acid (C 18:!) 8-30 
Linoleic  acid (C 18:2) 44- 65 
Linolen eic acid (C 18:3) 4- 10 
C 20 - C22 0- 1 
 
2 Gulf Standard                                                                                                                   GSO…/2012  
4.16 Specific gravity for the oil shall be ranged between 0.925 - 0.933 at 25°C. 
4.17 Refractive index for the oil shall be ranged between 1.469 - 1.478 at 40°C. 
4.18 Saponification  number  for the oil shall be ranged 179 - 190 mg potassium 
hydroxide/gm oil.  
4.19 Iodine  value (Wijs) for the oil shall be ranged between 115 - 128.  
5-Labeling:  
Without prejudice to what mentioned in Gulf Standard stated in items (2.1), (2.6), 
the following shall be declared on the label of the container:  
5.1 Producer name, address and its trade mark if found. 
5.2 Statement "edible wheat germ oil" and its state (virgin/ refined). 
5.3 The net weight for the container contents. 
5.4 Production and expiry dates accordi ng to what mentioned in Gulf Standard 
stated in item (2.3). 
5.5 Origin country. 
5.6 List of additives in the case of added.  
 
6-Sampling: 
Samples shall be taken according to Gulf Standards stated in Items (2. 2).  
 
7-Methods of examination and test:  
Tests shall be carried out on the sample according to Gulf Standard stated in Item 
(2.3) to determine its complying with the Items of this Standard. 
 
8-Packaging, transportation and storage:  
Without prejudice to what mentioned in Gulf Standard stated in item (2. 6). the 
following shall be observed:  
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 Gulf Standard                                                                                                                   GSO…/2012  
8.1 Packaging:  
The oil shall be packed in Suitable healthy containers made from unharmful 
materials for health, and not affect on its characteristics and quality, the containers 
shall be well closed and comply to wha t mentioned in Gulf Standard stated in item 
(2.6). 
8.2 Transportation:  
Transportation for the product shall be carried out by means protects the containers 
from damage and contaminant.  
8.3 Storage:  
The product shall be stored in dry and cooled place, far from light and heat sources.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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