GH/T 1310-2020 in English
VALIDSelenium-enriched potato
- Issued on:2020-12-07
- Implemented on:2021-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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本文件规定了富硒马铃薯的术语和定义、要求、试验方法、检验规则、标签标识、包装、运输和贮存。
本文件适用于种植在富硒土壤中和种植过程中通过硒生物营养强化技术措施生产的鲜马铃薯。
Introduction
Analysis of core indicators of the standard
| Indicator category | Technical requirements | Detection method |
|---|---|---|
| Total selenium content (fresh weight) | 0.015~0.150 mg/kg | GB 5009.93 |
| Proportion of selenoamino acids | ≥65% | GH/T 1135 |
| Commercial potato grading | In accordance with GB/T 31784 | Sensory inspection |
Key Technical Terms
Selenium Bio-Nutrition Fortification Technology: The core technology of increasing the selenium content in the edible part of potatoes through the natural growth and transformation of potatoes by applying selenium-containing conditioning agents. Practice has shown that foliar spraying of selenium fertilizer can increase the conversion rate of selenoamino acids by more than 30%.
Background of Standard Formulation
This standard responds to the requirements of WS/T 578.3 on dietary intake of selenium and is formulated based on sample data of selenium-rich potatoes from 12 major production areas across the country. The selenoamino acid ratio indicator was added in the 2020 revision, strengthening the nutritional evaluation dimension.
Implementation suggestions
1. Planting stage: Give priority to natural selenium-rich soil, and use special fertilizers containing selenomethionine
2. Detection and control: Total selenium and form detection are required before harvesting, and it is recommended to use HPLC-ICP-MS combined equipment
3. Label management: Clearly label the selenium content and form ratio according to GB/T 32950
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