Analytical Method for Resistant Dextrin

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Regulatory Assessment on Analytical Method for Resistant Dextrin
Malaysia

The below version control table serves to document all updates made to the report. The purpose is to ensure the information is always accurate and up-to-date.

Version Number	Content Creation Date	Publishing Date	Section(s) Updated & Reason(s) for Update
V0	08 March 2024	11 March 2024	N/A (new report)

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1. Regulatory Overview of Analytical Methods Prescribed in the Country’s Regulation for the Determination of Dietary Fiber Content

In Malaysia, the Food Regulations 1985 and its Schedules [1] do not provide analytical methods for nutrient content such as dietary fiber.

According to the Malaysia Guide to Nutrition Labeling and Claims [2], nutrient content should generally be analyzed by internationally recognized methods such as those prescribed by the Association of Official Analytical Chemists (AOAC). Alternatively, the manufacturer may calculate the nutrient content based on the product formulation with reference to the Malaysia Food Composition Database (FCD) [3].

Figure 1. Excerpt from Malaysia Guide to Nutrition Labeling and Claims

The Institute for Medical Research (IMR) and the Institute for Public Health (IKU) under the Ministry of Health issued protocols for sampling and methods of analysis for Malaysian FCD in 2011 [4]. Although not a formal legal document, this protocol is an essential guideline for participating institutions to ensure a standard methodology is used for all food analyses. It provides a list of standard analytical methods to determine nutrient content in food.

Analytical methods applying to dietary fiber stated in the Protocol include:

Method for proximate analysis

Type of nutrient	Method of analysis	Method Reference	Nature of sample
Total dietary fiber (TDF)	Enzymatic gravimetric method	AOAC Method 991.43, 1991 [5]	Total, soluble, and insoluble fiber content

From reference method AOAC 991.43, the Protocol describes a detailed analytical method to determine total, soluble, and insoluble dietary fiber contents in foods in Section 3.3.1.6. The method can be applied to determine total dietary fiber (TDF), and insoluble and soluble dietary fiber (IDF and SDF) in processed foods, grains, cereal products, fruits, and vegetables.

Method Performance Characteristics (for laboratory competency test)

Type of nutrient	Method of analysis	Method Reference
Total Dietary fiber TDF	Total dietary fiber in foods by Enzymatic- gravimetric Method (phosphate buffer) JKM F 1206	AOAC 985.29 (1995) [6]

In summary, it can be surmised that Malaysia MOH accepts test results of nutrients analyzed by AOAC methods.

2. Applicable Analytical Method for Resistant Dextrin

In the absence of local regulation prescribing analytical methods for dietary fiber, and considering resistant dextrin as a type of dietary fiber (see Figure 2 below), the manufacturer may refer to the methods outlined in Section 1 for the determination of dietary fiber content.

Figure 2. Excerpt from Twelfth Schedule of Malaysia Food Regulations 1985 [1]

Conclusion

In Malaysia, nutrient content in food should generally be analyzed by internationally recognized methods such as those prescribed by the Association of Official Analytical Chemists (AOAC). Based on the Protocol for sampling and methods of analysis for the Malaysian Food Composition Database, two AOAC methods are recommended for the determination of dietary fiber.
While it is not explicitly specified that the methods described in Section 1 can be applied to resistant dextrin, the manufacturer may take reference from those AOAC methods and establish the most appropriate one via method validation to ensure the results would be precise and accurate. It is also recommended to engage ISO/IEC 17025 accredited laboratories.