Research and Technologies to Reduce Grain Postharvest Losses: A Review

Nath, Bidhan; Chen, Guangnan; O’Sullivan, Cherie M.; Zare, Dariush

doi:10.3390/foods13121875

Foods

2024

DOI: 10.3390/foods13121875

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Research and Technologies to Reduce Grain Postharvest Losses: A Review

Bidhan Nath,

Guangnan Chen,

Cherie M. O’Sullivan

et al.

Abstract: Reducing postharvest losses offers a significant opportunity to enhance food availability without requiring extra production resources. A substantial portion of cereal grain goes to waste annually due to a lack of science-based knowledge, unconscious handling practices, suboptimal technical efficiency, and inadequate infrastructure. This article extensively reviews losses occurring during postharvest operations across various crops, examining diverse postharvest operations in different countries. Recent advanc… Show more

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Cited by 5 publications

References 113 publications

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Investigating potential of edible coatings for microbial safety, quality and shelf life extension of fresh cut cucumbers: A statistical optimization approach

Kaur,

Nikhanj

2024

Journal of Stored Products Research

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Investigating potential of edible coatings for microbial safety, quality and shelf life extension of fresh cut cucumbers: A statistical optimization approach

Kaur,

Nikhanj

2024

Journal of Stored Products Research

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Simulation Study on the Optimization of Temperature Cable Layout in a Warehouse During the Ventilation

Yang,

Chu,

Wang

et al. 2024

J Food Process Engineering

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The temperature data obtained from cables monitoring stored grain are crucial for real‐time surveillance of grain storage and serve as a reference for processes such as ventilation. This study focuses on optimizing the arrangement of temperature cables within the warehouse and employing numerical simulations to analyze the variation in grain temperature during a 7‐day cooling ventilation period. By comparing the predicted average temperature of bulk grain with the temperatures recorded by cable sensors, the study evaluates the potential benefits and cost implications of various cable layouts. The maximum difference in the average temperature between the monitoring temperature by cables and the predicted temperature in bulk grain was 0.70°C, and the root mean square error (RMSE) was 25.83% when the cables were arranged according to the national standard (National Standard of P.R. China, GB/T 26882.1‐2011). The study further examines the impact of optimizing cable layout, including variations in horizontal spacing, on the RMSE. It was found that reducing cable spacing decreased the RMSE but necessitated an increased number of cables. Conversely, increasing cable spacing led to a decrease in the number of cables but resulted in a higher RMSE. Based on an optimized non‐uniform layout with the less cables, which were inserted with dense cables near the wall and sparse cables in bulk grain, it was found that the RMSE was reduced to 22.23%, and the number of the cables was reduced by four cables compared to the national standard layout. The non‐uniform layout was also verified for applicability in large‐scale warehouses, showing a reduction of 26 cables compared to the national standard. The results demonstrated that the current cable layout of the national standard needs optimization, and that the optimization direction of the uniform layout does not guarantee economy and accuracy at the same time during the monitoring temperature in bulk grain. The non‐uniform cable layout, with fewer cables and improved monitoring accuracy, presents a promising approach for practical application.

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Comparative Analysis of Physical and Engineering Properties of New Egyptian Paddy Rice (Giza 183) Adapted to Mitigate Effects of Climate Change

Almasoud,

Abdel-Sattar,

Abdelbary

et al. 2024

Agronomy

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One of the major challenges for crop breeding scientists is climate change. Their task is to develop new crop varieties that can withstand this phenomenon. For this study, a new Egyptian paddy variety called Giza 183, which is designed to adapt to mitigate the effects of climate change, was chosen. We focused on examining the physical and engineering properties of this variety in order to design strategies for storage, handling, transportation, drying, parboiling, and processing equipment in rice mills. The goal was to minimize post-harvest losses during the milling process, thereby maximizing high-quality yields while reducing losses. The physical properties of the rice grains, such as the length, width, and thickness, were measured at an average moisture content of 13.7% ± 0.25% (wet basis). The results reveal that the mean values of length, width, and thickness averaged 7.50 mm, 3.18 mm, and 2.19 mm, respectively. Additionally, the geometric mean diameter, the equivalent mean diameter, surface area, arithmetic mean diameter, and volume were approximately 3.74 mm, 2.38 mm, 37.37 mm2, 4.29 mm, and 28.23 mm3, respectively. The mean of sphericity was 49.9%, and the grain shape (length/width) was 2.19. The true density was measured at 1218.28 kgm−3, while the bulk density was 572.17 kgm−3. The porosity was found to be 53.03%. Furthermore, the milling production rates for brown rice, hull, white rice, and broken rice were determined to be 76.83%, 23.15%, 67.97%, and 17.36%, respectively. The average weight of one thousand grains was 25.49 g. A linear regression model for describing the mass of rough rice grain was investigated. The mass was estimated with the single variable of the grain aspect ratio (width/length) with a determination coefficient of 0.9908. Information gained from the current study will be useful in designing post-harvest processing and storage structures in rice processing industries..

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Research and Technologies to Reduce Grain Postharvest Losses: A Review

Cited by 5 publications

References 113 publications

Investigating potential of edible coatings for microbial safety, quality and shelf life extension of fresh cut cucumbers: A statistical optimization approach

Investigating potential of edible coatings for microbial safety, quality and shelf life extension of fresh cut cucumbers: A statistical optimization approach

Simulation Study on the Optimization of Temperature Cable Layout in a Warehouse During the Ventilation

Comparative Analysis of Physical and Engineering Properties of New Egyptian Paddy Rice (Giza 183) Adapted to Mitigate Effects of Climate Change

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