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LST6121.1-2017: Inspection of grain and oils - Determination of oryzanol content in vegetable oils - Spectrometric method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| LS/T 6121.1-2017 | English | 149 |
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Inspection of grain and oils - Determination of oryzanol content in vegetable oils - Spectrometric method
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LS/T 6121.1-2017
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Basic data | Standard ID | LS/T 6121.1-2017 (LS/T6121.1-2017) | | Description (Translated English) | Inspection of grain and oils - Determination of oryzanol content in vegetable oils - Spectrometric method | | Sector / Industry | Food & Beverage Industry Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.040 | | Word Count Estimation | 5,554 | | Date of Issue | 2017-09-08 | | Date of Implementation | 2017-09-15 | | Regulation (derived from) | China Grain Feed (2017) 5; Industry Standard Filing Announcement 2017 No. 11 (Total No. 215) | | Issuing agency(ies) | National Grain Administration | LST6121.1-2017: Inspection of grain and oils - Determination of oryzanol content in vegetable oils - Spectrometric method
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Inspection of grain and oils-Determination of oryzanol content in vegetable oils-Spectrometric method
ICS 67.040
X04
People's Republic of China food industry standard
Determination of oryzanol in vegetable oils for grain and oil testing
Published on.2017-09-08
2017-09-15 implementation
National Food Bureau released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard refers to the standard of the Codex Alimentarius Commission standard CODEXSTAN210-1999 (2015) Article 5 γ-oryzanol content determination
Relevant content of the law.
This standard was proposed by the National Grain Administration.
This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270).
This standard was drafted. National Academy of Food Science Research Institute, China Textiles and Oils Import and Export Co., Ltd., Guizhou Provincial Grain and Oil Product Quality Supervision
Supervised Inspection Station, National Food Quality and Safety Supervision and Inspection Center, Hebei Provincial Grain and Oil Quality Testing Center, Shandong Samsung Corn Industry Technology Co., Ltd.
Division, Fengyi (Shanghai) Biotechnology Research and Development Center Co., Ltd.
Drafters of this standard. Zhu Lin, Zhang Yuxi, Yuan Yi, Xue Yalin, Cui Na, Li Lishi, Xiao Lirong, Wang Yuehua, Liu Baozhen, Li Xiujuan, Yang Hong.
Determination of oryzanol in vegetable oils for grain and oil testing
Spectrophotometry
1 Scope
This standard specifies the principle, reagents, instruments, sample preparation, operation steps and results of spectrophotometric determination of oryzanol in vegetable oil.
Representation and precision.
This standard applies to the determination of oryzanol in rice bran oil.
The detection limit of this standard method is 100mg/kg.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) Part 1. General and definition
GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement
Basic method of sex and reproducibility
Preparation of GB/T 15687 animal and vegetable oil and fat samples
3 Principle
The absorbance of the sample was measured using a 10 mm cuvette at 315 nm UV wavelength to calculate the oryzanol content in the sample.
4 reagents
n-Heptane. Analytically pure. (Requires 10mm quartz cuvette, scanning at ultraviolet wavelength of 310nm~320nm, taking distilled water as reference
Ratio, absorbance value is less than 0.02)
5 instruments
5.1 Spectrophotometer. wavelength range 310nm~320nm, quartz cuvette. 10mm.
5.2 Volumetric flask. 25mL.
5.3 Analytical balance. The division value is 0.0001g.
6 sample preparation
Execute according to GB/T 15687.
7 Operating steps
7.1 The spectrophotometer is preheated and the zero point is adjusted with n-heptane as the reference solution.
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