GB/T 16870-2009Asparagus -- Guide to storage (English PDF)
芦笋 贮藏指南
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Issued by
Standardization Administration of China
Level / Type
National · Recommended
Issue date
November 15, 2009
Implementation date
December 1, 2009
Scope
GB/T 16870-2009 is the English-translated version of 芦笋 贮藏指南.
GB/T 16870-2009 — This standard specifies the conditions and preservation of asparagus achieve conditions approach. This standard applies to Asparagus after direct consumption, production and processing.
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Document preview — GB/T 16870-2009
National Standard of the People's Republic of China
- ICS
- 67.080.20
- Classification
- B 31
- Replacing
- GB/T 16870-1997
Issued by: Standardization Administration of China
Contents
- Foreword
- 1 Scope
- 2 Harvest and storage conditions
- 2.1 Harvest
- 2.3 Storage
- 3 Suitable storage conditions
- 3.1 Temperature
- 3.2 Relative Humidity
- 3.3 Air circulation
- 3.4 Storage period
Foreword
This standard is equivalent to using ISO 4186. 1980 "Asparagus Guide" (English version), its technical content and ISO 4186. 1980 agreement.
For ease of use, this standard of ISO 4186. 1980 made the following editorial changes.
--- "This International Standard" be replaced by "this standard";
--- Remove the ISO 4186. 1980 Introduction;
--- The ISO 4186. 1980 applies to expression of expression;
--- The ISO 4186. 1980 standard to include a reference, in fact, does not reference an ISO standard corresponding to our criteria for inclusion of reference Ref.
This standard replaces GB/T 16870-1997 "Asparagus refrigeration technology." The difference between standard and GB/T 16870-1997. This standard Identical with ISO 4186. 1980, to delete the original ISO 4186. 1980 modified content.
This standard is proposed and managed by China General Chamber of Commerce.
1 Scope
This standard specifies the conditions and preservation of asparagus achieve conditions approach.
This standard applies to Asparagus after direct consumption, production and processing.
2 Harvest and storage conditions
2.1 Harvest
Asparagus should be the relevant product standard quality requirements, timely harvest.
2.2 is suitable for the storage of quality characteristics Asparagus should be used for the storage of fresh, clean, good, solid, smooth, without visible scars and pests. Sun Jian or top should be closed.
White Asparagus Spear should homogeneously white.
Because of different varieties, top or asparagus tips, and sometimes even young stems are likely to be white, pale yellow or lilac. Green asparagus Spear should be uniformly green.
2.3 Storage
Asparagus should be free of dirt and impurities, if necessary, cleaned. Storage after harvest should be as soon as possible. The main technical conditions within the permissible range, storage the former should be pre-cooled so that the cooling asparagus from the field to a temperature 7 °C. This is a transition temperature cryopreservation. You can use cold water or ice water to achieve an effective pre-cooling; however asparagus soaked in water should not exceed 1h.
Before storage, should not tying asparagus code on the packing box (for example, 12kg 15kg capacity Spear should be placed in the box).
3 Suitable storage conditions
3.1 Temperature
Inappropriate storage conditions, asparagus vulnerable, should pay attention to cold storage temperature and storage time.
Asparagus optimum storage temperature of 1 °C ~ 2 °C, the recommended minimum temperature is 1 °C, because fluctuations in temperature may reach 0.5 °C, and and practical experience has shown that the buds may be damaged at temperatures below 0.5 °C storage.
If the expected storage time is 10d or less, asparagus can be successfully stored at a temperature of 0.5 °C. However, in this temperature by degrees, the storage period should not exceed 10d, because there may be damaged.
3.2 Relative Humidity
Relative humidity should be maintained at 90% to 95%.
3.3 Air circulation
Crates and stacking manner that facilitates air circulation in order to ensure a stable and uniform temperature and relative humidity should be consistent with 3.1 and 3.2 Claim.
3.4 Storage period
Asparagus shorter period of time as possible. Based on variety, quality and temperature of the storage period shall 10d to 20d (including time and refrigerated transport Sales time required).
GB/T 16870-2009/ISO 4186. 1980
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 5 pages — is available in the English PDF.
Referenced standards
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