Criteria of Determination of Safe Grain Storage Time – A Review

Kaleta, Agnieszka; Górnicki, Krzysztof

doi:10.5772/52235

Cited by 30 publications

(18 citation statements)

References 39 publications

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“…Safe storage period is the time of exposure of a product at a grain moisture content to a r.h. and temperature beyond which wheat deterioration may occur (Kaleta and Gornicki, 2013). To keep losses low, wheat grain must be dried to the safe storage grain moisture (i.e., the grain moisture required for long term storage) within the safe storage period (Ekechukwu, 1999).…”

Section: Discussionmentioning

confidence: 99%

Influence of storage conditions on the quality properties of wheat varieties

Kibar

2015

Journal of Stored Products Research

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Section: Discussionmentioning

confidence: 99%

Influence of storage conditions on the quality properties of wheat varieties

Kibar

2015

Journal of Stored Products Research

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“…of 19-22% (Seitz, Sauer, Mohr, & Aldis, 1982). Once moist grain is harvested, the grain is dried and stored in silos for the medium or long-term (Kaleta & Górnicki, 2013;Magan & Aldred, 2007). If maize is stored safely (14.5-15% m.c.…”

Section: Introductionmentioning

confidence: 99%

Influence of storage environment on maize grain: CO₂ production, dry matter losses and aflatoxins contamination

García-Cela

Kiaitsi

Sulyok

et al. 2019

Food Additives & Contaminants: Part A

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Poor storage of cereals such as maize can lead to both nutritional losses and mycotoxin contamination. The aim of this study was to examine the respiration of maize either naturally contaminated or inoculated with Aspergillus flavus to examine whether this might be an early and sensitive indicator of aflatoxin contamination and relative storability risk. We thus examined the relationship between different interacting storage environmental conditions (0.80-0.99 water activity (aw) and 15-35°C) in naturally contaminated and irradiate maize grain + A. flavus on relative respiration rates (R), dry matter losses (DMLs) and aflatoxin B1 and B2 (AFB1-B2) contamination. Temporal respiration and total CO2 production were analysed by GC-TCD, and results used to calculate the DMLs due to colonisation. Aflatoxins (AFs) contamination were quantified at the end of the storage period by HPLC MS/MS. The highest respiration rates occurred at 0.95 aw and 30-35°C representing between 0.5-18% DMLs.Optimum AFs contamination was at the same aw at 30°C. Highest AFs contamination occurred in maize colonised only by A. flavus. A significant positive correlation between %DMLs and AFB1 contamination was obtained (r=0.866, p<0.001) in the irradiated maize treatments inoculated with A. flavus. In naturally contaminated maize + A. flavus inoculum loss of only 0.56% DML resulted in AFB1 contamination levels exceeding the EU legislative limits for food.This suggests that there is a very low threshold tolerance during storage of maize to minimise . Please refer to any applicable publisher terms of use.2 AFB1 contamination. This data can be used to develop models which can be effectively used in enhancing management for storage of maize to minimise risks of mycotoxin contamination.

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“…Thus, it is possible to utilise the progressive increase in the respiration rate (R) under increasingly conducive conditions for mould growth due to the oxidation of carbohydrates to produce CO 2 , water vapour and heat during aerobic respiration to calculate quality losses as DML. Overall, a 1% DML corresponds to 14.7 g of CO 2 produced per kilogram cereal with associated effects on cereal quality [ 13 ]. DML can be quantified on the basis of CO 2 production and respiration rates using Gas Chromatography (GC) [ 8 , 9 , 12 ] and these data are used as a “storability risk index” to predict overall quality changes in stored grain.…”

Section: Introductionmentioning

confidence: 99%

Fusarium graminearum in Stored Wheat: Use of CO2 Production to Quantify Dry Matter Losses and Relate This to Relative Risks of Zearalenone Contamination under Interacting Environmental Conditions

García-Cela

Kiaitsi

Sulyok

et al. 2018

Toxins

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Zearalenone (ZEN) contamination from Fusarium graminearum colonization is particularly important in food and feed wheat, especially during post-harvest storage with legislative limits for both food and feed grain. Indicators of the relative risk from exceeding these limits would be useful. We examined the effect of different water activities (aw; 0.95–0.90) and temperature (10–25 °C) in naturally contaminated and irradiated wheat grain, both inoculated with F. graminearum and stored for 15 days on (a) respiration rate; (b) dry matter losses (DML); (c) ZEN production and (d) relationship between DML and ZEN contamination relative to the EU legislative limits. Gas Chromatography was used to measure the temporal respiration rates and the total accumulated CO2 production. There was an increase in temporal CO2 production rates in wetter and warmer conditions in all treatments, with the highest respiration in the 25 °C × 0.95 aw treatments + F. graminearum inoculation. This was reflected in the total accumulated CO2 in the treatments. The maximum DMLs were in the 0.95 aw/20–25 °C treatments and at 10 °C/0.95 aw. The DMLs were modelled to produce contour maps of the environmental conditions resulting in maximum/minimum losses. Contamination with ZEN/ZEN-related compounds were quantified. Maximum production was at 25 °C/0.95–0.93 aw and 20 °C/0.95 aw. ZEN contamination levels plotted against DMLs for all the treatments showed that at ca. <1.0% DML, there was a low risk of ZEN contamination exceeding EU legislative limits, while at >1.0% DML, the risk was high. This type of data is important in building a database for the development of a post-harvest decision support system for relative risks of different mycotoxins.

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Criteria of Determination of Safe Grain Storage Time – A Review

Cited by 30 publications

References 39 publications

Influence of storage conditions on the quality properties of wheat varieties

Influence of storage conditions on the quality properties of wheat varieties

Influence of storage environment on maize grain: CO₂ production, dry matter losses and aflatoxins contamination

Fusarium graminearum in Stored Wheat: Use of CO2 Production to Quantify Dry Matter Losses and Relate This to Relative Risks of Zearalenone Contamination under Interacting Environmental Conditions

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Criteria of Determination of Safe Grain Storage Time – A Review

Cited by 30 publications

References 39 publications

Influence of storage conditions on the quality properties of wheat varieties

Influence of storage conditions on the quality properties of wheat varieties

Influence of storage environment on maize grain: CO2 production, dry matter losses and aflatoxins contamination

Fusarium graminearum in Stored Wheat: Use of CO2 Production to Quantify Dry Matter Losses and Relate This to Relative Risks of Zearalenone Contamination under Interacting Environmental Conditions

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Influence of storage environment on maize grain: CO₂ production, dry matter losses and aflatoxins contamination