PUBLIC REVIEW 
DRAFT  
DRAFT UGANDA STANDARD  DUS 780:2012  
 
First  Edition  
2012 -mm-dd 
 
 Reference number  
DUS 780: 201 2 
©UNBS 201 2  
  
Powdered  silver cyprinid  (Mukene)  — Specification  
 DUS 780: 2012  
ii © UNBS 2012  – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions of a contract. Users are 
responsible for it s correct application  
© UNBS  2012  
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocopying and microfilm, without prior written 
permission from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: 256 31 262688/689  
Fax: 256 41 286 123  
E-mail: info@unbs .go.ug  DUS 780: 2012  
©  UNBS  2012  – All rights reserved  iii 
 Forew ord 
Uganda National Bureau of Standards (UNBS) is a parastatal  under the Ministry of Trade, Industry  and 
Cooperatives  established by the Act of Parliament of 1983, of the Laws of Uganda.  UNBS is mandated to co -
ordinate the elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT/SPS Agreements of the World Trade Organisation (WTO).  
The work of  preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of representatives of 
consumers, traders, academicians, manufacturers, government  and other stakeholders.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft standards 
for approval and declar ation as Uganda Standards by the National Standards Council.  
This Draft Uganda Stand ard, DUS 780:2012 , was developed  by the subcommittee on F ish and Fishery 
products (SC 10 ) under supervision of technical committee on Food and Agriculture standards  (UNBS/T C 2).    
This Draft Uganda Standard has been developed  as a result of the need to provide guidance to industry in  
produc tion and regulation of powdered  silver cyprinid (mukene) . DUS 780:2012 
UNBS 2012  – All rights reserved   
 Powdered silver cyprinid  (Mukene) — Specification  
1 Scope  
 
This Draft Uganda Standard specifies requirement s and methods of  sampling and  test for powdered  silver 
cyprinid (m ukene)  of the species  Rastrineobola argentea , intended for human consumption . 
2 Normative references  
The following referenced documents are indispensable for the  application of this document. For dated 
references, only the edition cited applies. For undated references, the latest edition of the referenced 
document (including any amendments) applies.  
US 7, General standard for the labelling of pre -packaged foods  
US 28, Code of practice for hygiene in the food and drink manufacturing industry  
US 45, General standard for food additives  
US 500, Guidelines  for nutritional labelling of foods  
US 508, Guidelines  for nutritional and health claims for food 
US 566, Use of Nut rition claims — Requirements  
US 738, General standard for contaminants and toxins in food and feed  
FDUS EAS 217 -2, Microbiology of foods and animal feeding stuffs ─ Horizontal method for the enumeration of 
microorganisms – Part 2: Colony count technique at  30 °C 
FDUS EAS 217 -4, Microbiology of foods and animal feeding stuffs ─ Horizontal method for the detection and 
enumeration of coliforms – Part 4: Most probable number technique  
FDUS EAS 217 -8, Microbiology of foods and animal feeding stuffs ─ General gui dance for enumeration of 
yeasts and moulds – Part 8: Colony count technique at 25 °C  
US ISO 7251, Microbiology of food and animal feeding stuffs — Horizontal method for the detection and 
enumeration of presumptive Escherichia coli — Most probable number t echnique  
US ISO 11290 -2, Microbiology of food and animal feeding stuffs — Horizontal method for the detection and 
enumeration of Listeria monocytogenes – Part 2: Enumeration method  
US ISO 16050 , Foodstuffs — Determination of aflatoxin B1, and the total con tent of aflatoxins B1, B2, G1 and G2 
in cereals, nuts and derived products — High-performance liquid chromatographic method  
DUS 919, Dried silver cyprinid (Mukene) – Specification    
ii © UNBS 2012  – All rights reserved  
 3 Terms and definitions  
For the purposes of this standard, the following te rms and definitions shall apply.  
3.1 
powdered silver cyprinid (mukene)  
product produced by milling  or grinding  of dried silver cyprinid  (mukene)  into flour  
3.2 
foreign matter  
organic and inorganic materi als (such as sand, soil, glass) other than extraneous  matter in the ground silver 
cyprinid (mukene)  
3.3 
extraneous matter  
organic matter of silver cyprinid  (mukene) origin other than powdered  silver cyprinid (mukene)   
3.4 
food grade material  
materials that are free from substances that are hazardous to human  health  
4 Essential quality and composition requirements  
4.1 Raw materials  
The raw material sh all be dried silver cyprinid (mukene)  of sound quality, that complies with the requirements 
of DUS 919.  
4.2 Finished product   
Powdered  silver cyprinid (mukene)  shall be safe and suitable for human consumption and shall confor m to the 
following requirements.  It shall:  
a) have taste and odour  typical of the product;  
b) have colour characteristic of the variety;   
c) be free from any indication of spoilage ; and 
d) be free from extraneous and foreign matter . 
4.3 Specific requirements  
4.3.1  Particle size  
Using a standard method of sifting, not less than 90 per cent of the product shall pass through a sieve the 
dimension of the mesh of which is: diameter of 1000µm. 
4.3.2  The powdered  silver cyprinid (mukene)  shall comply with the requirements of Table 1.  
 
  
©  UNBS  2012  – All rights reserved  iii 
 Table 1 — Specific requirements for powdered silver cyprinid (mukene)  
S/N Parameter  Requirement  Test method s 
1 Moisture content , % m/m , max.  7  
2 Total ash content , % max.  15  
3 Acid insoluble ash , % max.  0.5  
4 Protein content, % min.  (N 
 5.7) 45  
5 Crude fat, % max.  14  
6 Dry matter , % m/m, min.  97  
7 Iron, mg/100g, min  8  
8 Zinc, mg/100g, min  5  
9 Calcium , mg/100g, min.  1500   
5 Food additives  
Food additives may be us ed in the preparation of powdered silver cyprinid (mukene) in accordance with US 
45.  
6 Contaminants  
6.1 Heavy metals  and other contaminants  
Powdered silver cyprinid (m ukene) shall comply with those maximum limits for heavy metals and other 
contaminants spec ified in US 738 . 
6.2  Pesticides and veterinary drug residues  
Powdered  silver cyprinid (m ukene) shall comply with those maximum pesticide and veterinary drug residue 
limits established by the Codex Alimentarius Commission for similar commodity.  
6.3 Mycoto xins 
Powdered  silver cyprinid (m ukene)  shall not contain mycotoxins in amount that may present hazard to health. 
In particular the product shall conform to the maximum limits for aflatoxin specified in Table 2. 
Table 2— Maximum limits for aflatoxin in Powd ered  silver cyprinid (m ukene)  
S/N Parameter  Limit  Method of Test  
1 Total aflatoxin , micrograms per kilogram, maximum  10 
US ISO 16050  
2 Aflatoxin B1 only, ppb max  5 
 
7 Hygiene  
Powdered silver  cyprinid (m ukene) shall be produced and handled in a hygien ic manner in accordance with 
US 28.    
iv © UNBS 2012  – All rights reserved  
 Powdered silver cyprinid (m ukene) shall comply with the microbiological limits given in Table 3. 
Table 3 — Microbiological limits for  Powdered  silver cyprinid (m ukene)  
S/N Microorganism s Requirement  Method of test  
1 Pseudomonas  species/g , max.  Absent  ISO 13720  
2 Salmonella  in 30 g , max.  Absent  ISO 6579  
3 E. coli/g, max.  Absent  ISO 7251  
4 Coliforms /100 g , max.  Absent  ISO 4832  
6 Total viable count /g, max.  105 ISO 4833  
7 Clostridium perfrigens /g, max.  Absent  ISO 7937  
8 Listeria monocytogenes  in 25 g, max.  Negative  ISO 11290 -2 
 
8 Packaging  
Powdered  silver cyprinid  (mukene) shall be packaged in food grade material containers which shall safeguard 
the hygienic, nutritiona l, technological and organoleptic qualities of th e product.  
The containers, including packaging material, shall be made of substances which are safe and suitable for 
their intended use. They shall not impart any toxic substance or undesirable odour or flavour to the product.  
9 Weights and Measures  
Powde red silver cyprinid (m ukene) shall be packaged in accordance with the Weights and Measures 
legislation  of the destination country . 
10 Labelling  
10.1  In additi on to the requirements in  US 7 , the following specific labelling requirements shall apply and 
shall be legibly  and indelibly marked : 
a) common name of the product as “Powdered  silver cyprinid (m ukene)”; 
b) net weight  in metric units ;  
c) name and physical address of the manufacturer/packer/distributor of the product shall be declared on 
the label;  
d) date of man ufacture;  
e) lot identification ; 
f) list of ingredients in descending order   
g) expiry date ;  
h) country of origin ; 
i) the words "Human food ”;  
©  UNBS  2012  – All rights reserved  v 
 j) storage instruction s; and  
k) instructions on disposal of used package.  
10.2 When labelling non -retail packages, information for non -retail packages shall either be given on the 
packages or in accompanying documents, except that the name of the product, lot identification and the name 
and address of the manufacturer or packer shall appear on the packages.  
 
10.3 Nutrition labelling and claims  
Nutritional labelling, nutrition and health claims may be made in accordance with US 500, US 508, US 56 6. 
11 Methods of sampling and test  
Powdered  silver cyprinid (m ukene)  shall be sampled in accordance with the appropriate methods of sampling. 
Tests shall be conducted in accordance with appropriate methods where indicated in an appropriate clause or 
other international standard methods.  
 
 
 
 
  
vi © UNBS 2012  – All rights reserved  
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. This mark can be used only by those licensed under the certification mark scheme o perated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assurance that the goods comply with the 
requirements of that standard under a  system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually checked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Executive Director, 
Uganda National Bureau of Standards.  
 
.DUS 780:2012    
 
ICS 67.120.3 0 
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