GB/T 41377-2022 in English
VALIDQuality requirements for inulin
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Within 1 day
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《GB/T 41377-2022菊粉质量要求》由TC64（全国食品工业标准化技术委员会）归口，TC64SC5（全国食品工业标准化技术委员会工业发酵分会）执行，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
GB/T41377-2022 is the first national standard for the inulin industry, which systematically regulates the quality requirements of inulin products made from chicory or Jerusalem artichoke. The standard innovatively adopts a dual detection system of high performance liquid chromatography and enzymatic hydrolysis to provide technical support for the quality control of functional food raw materials.
Comparative analysis of key indicators
| Test items | Enzymatic hydrolysis requirements | Chromatographic method requirements | Difference analysis |
|---|---|---|---|
| Inulin content | ≥86.0% | ≥86.0% | Different methods but consistent limits |
| Total monosaccharide content | ≤14.0% | ≤14.0% | Chromatographic method has higher precision |
| Water content | ≤4.5g/100g | The drying method is uniformly adopted | |
Detailed explanation of technical points
Principle of polymerization degree determination
The standard uses the formula DP=F2/G2+1 to calculate the average polymerization degree, where F2 is the enzymatically hydrolyzed fructose content and G2 is the enzymatically hydrolyzed glucose content. The algorithm is based on the hydrolysis characteristics of the β-(2→1) glycosidic bond of the inulin molecular chain. In practical applications, the following should be noted:
- When DP＜10, it is a short-chain inulin with higher solubility
- Long-chain inulin with DP＞23 has stronger probiotic properties
Recommendations for detection method selection
Recommended detection schemes for different application scenarios:
- Amino column scheme (acetonitrile:water=75:25) is suitable for routine quality inspection
- Carbohydrate analysis column scheme (pH9.5-9.6) is more suitable for scientific research-level detection
Guidelines for the implementation of standards
Special attention should be paid to enterprises when implementing:
- Packaging, storage and transportation must comply with the requirements of GB/T191 graphic mark
- Type inspection shall include all 9 indicators, at least once every six months
- Re-inspection rules clearly state that if 2 items are unqualified, the re-inspection process will be initiated
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