Reduction Of Post-harvest Losses Research Articles

Improvement of Storage Quality of Broccoli Using a Cold-Shock Precooling Way and the Related Molecular Mechanisms

This research was performed to ascertain the impact of cold shock precooling and the underlying mechanism on broccoli storage quality. After being harvested and placed at 0 ± 2 °C, the broccoli was sealed in polyethylene bags and stored at 4 ± 2 °C. Cold-shock precooling showed superior qualities in terms of higher hardness, titratable acidity, moisture content, soluble protein, and chlorophyll, as well as more abundant volatile compounds, better sensory quality, antioxidant capacity, and decreased weight loss in comparison to without cold shock. The regulation of important metabolic enzymes such as peroxidase, catalase, pheophytinase, and magnesium-dechelatase was credited with these beneficial effects. It was found that a 90 min duration of cold shock was the ideal treatment. Results showed that cold shock precooling was a useful, economical, and environmentally responsible way to reduce postharvest loss and postpone broccoli senescence during storage.

Enhancing Global Food Security through Sustainable Fisheries and Aquaculture: A Comprehensive Review

As the global population rises, addressing food security becomes more critical, particularly in developing regions struggling with hunger and malnutrition. Fisheries and aquaculture provide a vital solution by offering essential nutrition, employment, and economic benefits to millions worldwide. This study conducts an in-depth review of how capture fisheries and aquaculture contribute to global food security, emphasizing ten key areas: sustainable fisheries management, aquaculture growth, nutritional advantages, economic empowerment, climate adaptability, post-harvest loss reduction, policy and governance, technological advancements, biodiversity preservation, and global market access. The review evaluates the strength and consistency of evidence regarding the positive impact of these sectors on food security and poverty alleviation. The findings highlight the importance of cohesive policy and governance, technological improvements, and broader market access to fully leverage the role of fisheries and aquaculture in addressing global food challenges. Additionally, this review identifies research gaps that need to be addressed to maximize the sectors' potential for economic growth and environmental sustainability

Aloe vera and chitosan coating, an eco-friendly and sustainable approach to reduce postharvest loss of figs (Ficus carica)

<i>Aloe vera</i> and chitosan coating, an eco-friendly and sustainable approach to reduce postharvest loss of figs (<i>Ficus carica</i>)

Electrolyzed Salt Solutions Used against Major Postharvest Diseases of Fresh Fruit and Vegetables.

Alternative means of control are becoming increasingly relevant to the improvement of safety and the reduction of postharvest losses and waste of fruit and vegetables, especially in view of the application of the EU Greed Deal. A previous study from our research group that focused on the electrolysis process of water and was conducted using NaCl and NaHCO3 as electrolytes proved to efficiently reduce pathogen inoculum in packinghouse washing water. In the present study, we examined the effect of the electrolyzed salt solutions (eNaCl and eNaHCO3) produced in the same experimental conditions previously reported to be used as postharvest treatments during handling and commercialization, and/or at the consumer's site. We tested the electrolyzed solutions, obtained in the presence or absence of the salts, against five relevant fungal pathogens in terms of conidia viability, and on various hosts in terms of rot incidence/severity. Chemical parameters of electrolyzed and non-electrolyzed solutions were also assessed. Although a different susceptibility to treatments was observed among pathogens, electrolyzed sodium chloride (eNaCl) was the most efficient treatment for preventing spore germination, as well as for minimizing fruit rot. However, a consistent control of fungal viability and consequent rot was also achieved using electrolyzed tap water (eW). The eNaHCO3, although less efficient on fungal viability, provided a significant effect against fruit rot. The investigated electrolyzed solutions seem promising for reducing the waste of fresh fruit and vegetables.

The Role of Modified Atmosphere Packaging in Reducing Postharvest Losses a

Modified Atmosphere Storage (MAS) and Packaging (MAP) are advanced preservation technologies widely utilized in the post-harvest handling of fruits, vegetables, and poultry products to extend shelf life, maintain quality, and reduce spoilage. These methods involve altering the atmospheric composition within storage or packaging environments, typically by reducing oxygen levels and increasing carbon dioxide concentrations. The three main gases utilized in food processing are carbon dioxide (CO2), nitrogen (N2), and oxygen (O2). The majority of fresh fruits, vegetables, and food items are made using various combinations of two or three of these gases, depending on what the demands of the particular product are. Generally, a 30–60% CO2 split is utilized for non-respiring items, where microbial growth is the primary spoiling characteristic. The remaining amount can either be pure N2 (for foods sensitive to O2) or a combination of N2 and O2. In order to minimize the respiration rate, around 5% CO2 and O2 are often employed for respiring products gas level, with N2 making up the remaining amount. This creates conditions that slow down metabolic activities, microbial growth, and oxidative reactions. For fruits and vegetables, MAS and MAP help in delaying ripening, reducing respiration rates, and maintaining texture and nutritional value. In the case of poultry products, these technologies are crucial in minimizing microbial contamination, preventing spoilage, and maintaining sensory attributes such as colour, flavour, and tenderness.

Do Agricultural stakeholder panels enhance post-harvest loss reduction? Evidence from Malawi

Post-harvest loss significantly affects food security in sub-Saharan Africa (SSA) and elsewhere across developing countries. Weak institutional factors like ineffective agricultural extension services in rural communities can exacerbate such problems among smallholder farmers in SSA and other developing countries. Therefore, international development policies have prioritized strengthening rural extension systems to enhance access to effective extension services and thereby enhance food security outcomes like ineffective agriculturalpost-harvest loss reduction among rural households. As such, the US-Agency for International Development supported the Strengthening Agricultural and Nutrition Extension program in Malawi from 2015 to 2021 to improve access to rural extension services by promoting Agricultural Stakeholder Panels (ASPs)—platforms designed to enhance farmer interaction with local extension agents in rural communities and thereby enhance improved access to quality extension services in rural areas. The ASP approach can reduce post-harvest losses for major crops, such as maize. However, rigorous analyses of the effects of ASPs on post-harvest loss reduction remain limited. To address this knowledge gap, we apply recursive bivariate probit regression to primary survey data from 2134 households in Malawi to estimate the effects of the ASP approach on post-harvest loss reduction in 2018. The results show that ASPs reduced post-harvest losses among households by 53%, and a crucial outcome that can improve household food security. The result demonstrates that policies that strengthen rural extension systems can contribute to the achievement of the Sustainable Development Goals on hunger and food security in rural Malawi and similar contexts.

POST-HARVEST LOSSES OF MAIZE SUPPLY CHAIN IN PUNJAB, PAKISTAN

Maize holds significant importance in Pakistan&amp;#39;s agricultural sector, as it is among the primary cereal crops grown extensively throughout the country. The growing food demand due to the increasing population is a significant issue. Post-harvest losses (PHL) of maize relate to losses that happen laterally in the whole grain logistics network, after harvest to final consumption. The study was conducted in the district Vehari to assess the different types of post-harvest losses and identify the underlying factors responsible for such losses in the maize supply chain. For this purpose, data were collected from 210 respondents by using purposive samplingtechnique. The sample size includes 120 growers, 30 village traders, 30 commission agents cum wholesaler and 30 retailers. Structured questionnaires were used to gather data from major supply chain actors. The study findings revealed that the average losses at the grower’s level, village traders, commission agent cum wholesaler and retailer were 12.21, 2.36, 3.21 and 1.01 percent of the total production respectively. It is recommended that the implementation of modern storage facilities, drying using advanced technologies, training programs for the supply chain actors, financial innovations, and efficient transportation systems will result in significant reduction of post-harvest losses (PHL) in maize production and thus contribute to food security.

Impact of Fruit Maturity on Internal Disorders in Vapor Heat Treated Mango Cv. ‘B74’

UN Sustainable Development Goal 12 (SDG 12) aims to reduce food losses in production and postharvest stages within supply chains. Identifying and addressing contributors to such losses is crucial to their reduction and to overall supply chain sustainability. Internal disorders (IDs) often contribute to postharvest losses and waste of highly perishable fruits like mangoes. Understanding and addressing influencers of susceptibility is limited but essential. Factors potentially associated with the expression of IDs in ‘B74’ mango commercial supply chains were investigated. Over three fruiting seasons (2020/21, 2021/22, and 2022/23), 43 export supply chains in Australia were monitored from two major production regions, the Northern Territory and North Queensland. Prior to export, the mangoes were subject to a mandatory phytosanitary vapor heat treatment (VHT) in which they were heated with saturated water vapor to a core temperature 46 °C maintained for 15 min and were then assessed for IDs at the end of their shelf life. The predominant IDs observed in the ‘B74’ fruit were flesh cavity with white patches (FCWP) and flesh browning (FB). VHT-induced FCWP, but not FB. Harvest maturity was identified as a predisposing factor. FB was generally positively correlated and FCWP was typically negatively correlated with fruit maturity at harvest. Relatively more-mature fruit was prone to FB irrespective of VHT, and relatively less-mature fruit was susceptible to FCWP post-VHT. Therefore, selective harvesting and/or sorting for optimum maturity after harvest can be practiced minimizing the incidence and severity of these two IDs in ‘B74’ fruit. Thus, dry matter (DM) sorting can contribute to postharvest loss reduction and the general sustainability of mango supply chains.

Research and Technologies to Reduce Grain Postharvest Losses: A Review.

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 advancements in postharvest technology research are thoroughly discussed. The primary obstacles and challenges hindering the adoption and implementation of postharvest technologies are also explored. The appropriate postharvest technology relies on specific factors, including the kind of crops, production locales, seasons, and existing environmental and socioeconomic conditions.

Ilmenite-Grafted Graphene Oxide as an Antimicrobial Coating for Fruit Peels.

Postharvest loss is a significant global challenge that needs to be urgently addressed to sustain food systems. This study describes a simple microwave-assisted green synthesis method in developing a nanohybrid material combining natural ilmenite (FeTiO3) and graphene oxide (GO) as a promising antimicrobial fruit peel coating to reduce postharvest loss. The natural ilmenite was calcined in an inert environment and was mixed with GO in a microwave reactor to obtain the nanohybrid. The nanohybrid was then incorporated into an alginate biopolymer to form the fruit coating. Microscopic images revealed successful grafting of FeTiO3 nanoparticles onto the GO sheets. Spectroscopic measurements of Raman, X-ray photoemission, and infrared provided insights into the interactions between the two matrices. The optical band gap calculated from Tauc's relation using UV-vis data showed a significant reduction in the band gap of the hybrid compared to that of natural ilmenite. The antimicrobial activity was assessed using Escherichia coli, which showed a substantial decrease in colony counts. Bananas coated with the nanohybrid showed a doubling in the shelf life compared with uncoated fruits. Consistent with this, the electronic nose (E-nose) measurements and freshness indicator tests revealed less deterioration of the physicochemical properties of the coated bananas. Overall, the results show promising applications for the ilmenite-grafted GO nanohybrid as a food coating capable of minimizing food spoilage due to microbial activity.

Food waste and the EU target: effects on the agrifood systems’ sustainability

ABSTRACT The reduction of food losses and waste is part of the 2030 Agenda Sustainable Development Goals (target 12.3) and, consequently, is one of the EU’s political priority in the field of circular economy. In this framework, the target 12.3 of the UN’s 2030 Agenda for Sustainable Development stated, by 2030, a not quantified reduction in post-harvest losses and a halving of food waste at the retail and consumers levels; while the EU Commission has recently set the target, by 2030, of reducing by 10% food losses occurred at the stage of processing and manufacturing and by 30% food waste occurred at the stage of retail and consumption. Food losses and waste should primarily be considered an expression of inefficiency of agricultural production processes determining several environmental, social and economic impacts. The quantification of food losses and waste is still an unsolved problem so much so that, in EU; currently available data are only related to the period 2020–2021 and, in many cases, are based on estimates and are not uniform in individual Member States. This makes reliable predictions of results achievable by the European Union particularly difficult. The aim of this paper is to analyze whether the plan of losses and waste reduction established by the EU Commission is able to both ensure the achievement of 2030 Agenda target 12.3 and to make a contribution to improving the sustainability of agri-food systems. In doing so, in addition to Eurostat data on losses and waste, the EU-Commission projections and the latest results of recent studies on environmental, social and economic impact of food losses and waste in EU were used, including indicators on hidden costs of agrifood systems developed by FAO. What observed shows that the EU-Commission reduction plan, if implemented, should result in a reduction of losses and waste inadequate for complying with the recommendation given by the target 12.3. Furthermore, the EU-Commission’s decision not to provide for losses reduction at the agricultural stage should significantly limit environmental benefits, given that much of the negative environmental impacts (GHG, land and water use, etc.) are ascribable to this stage as are, according to FAO estimates, hidden environmental costs. Besides limiting environmental benefits, the EU-Commission reduction plan, focusing only on the food losses and waste reduction in the final stage of supply food chain, could lead to negative social and economic impacts caused by a decline in the demand, which will reduce supply, jobs losses and GDP reduction. The conclusion on this, is that the reduction of food losses and waste is an issue that cannot be addressed separated but needs to be included in a wider program of integrated and complementary measures as a whole clearly aimed at realizing forms of circular economy.

Does Post-Harvest Losses Matter on Farmers Profitability? Evidence From Smallholder Grape Farmer’s in Dodoma, Tanzania

This study analysed post-harvest losses of grapes and their effects on profitability of smallholder grape farmers in Dodoma. Cross section survey using structured questionnaire was used to collect primary data from 240 grape farmers who were selected through a random sampling procedure. Descriptive statistics, paired t-test, gross margin and multiple regression analysis were used to achieve the objectives of this study. Results show that, the average quantity of grape yields by smallholder grape farmers’ in Dodoma was 7.7 tonnes/ha. Out of these, 1.65 tonnes/ha equivalent to 20.9% of the total grape harvested were lost. Based on multiple regression model, results showed that post-harvest losses have significant effect on the profit of smallholder grape farmers in Dodoma (p&lt;0.01) by 13.9%. The observation is implied by a lower profit with loss (1.8 million/ha) compared to profit without loss (2.9 million /ha) received by farmers’ from the gross margin analysis. The study concludes that a substantial proportion of grapes produced did not reach the final consumers due to post-harvest losses which had significant effect on farmers’ profitability. It is recommended that reduction in post-harvest losses in grape farming should be of utmost priority in any efforts of improving farmers’ profit. These efforts may entail provision of adequate training to farmers on post-harvest losses and handling techniques to create awareness among actors and investing in post-harvest technologies to prolong grapes’ shelf life, reduce post-harvest losses and increase profit of smallholder grape farmers

Postharvest practices and loss determinants for interventions among smallholder potato farmers in Tiyo district, Arsi zone, Ethiopia

Postharvest loss reduction, which will contribute to several sustainable development goals (SDGs) including SDG 1, 2, 3, 9, 12 and 13, is an important strategy for food and nutrition security. It requires interventions designed based on timely and reliable statistical data. However, lack of produce-specific loss data and associated factors along the postharvest value chain stages remains a challenge to implement appropriate interventions. Therefore, a survey was conducted on socio-demographic characteristics, postharvest practices, extent and causes of losses, and factors influencing postharvest loss of potato crops in Tiyo district of Arsi Zone, Ethiopia in 2022. A multistage sampling method was used to select a total of 209 smallholder potato farming household heads through a combination of purposive and simple random sampling techniques. Quantitative data collection was carried out online using computer-assisted personal interviewing (CAPI) by programming a semi-structured questionnaire in KoboCollect software for tablets. Descriptive statistics and ordinal probit regression model were used to analyze the collected data and determinant factors influencing postharvest loss of potatoes at various farm-level stages, respectively. An aggregate of 15-46% loss exists between harvesting and marketing. Losses during harvesting, sorting, cleaning, packaging, field-to-storage transport, storage, and storage-to-market transport were 58.9%, 6.2%, 2.9%, 2.4%, 3.8%, 20.1%, and 5.7%, respectively. Elevated loss during harvesting and storage in the area is likely to reflect poor handling and storage practices. The primary causes of losses were poor harvesting and handling techniques, poor storage facility, and insects and worms. Moreover, regression model estimations of categorical losses, as perceived by farmers, reveal that socio-demographic variables and postharvest factors influenced potato loss. During the harvest stage, working family members significantly (p&lt;0.01) increased loss while years of schooling (p&lt;0.05) significantly reduced loss. In addition, harvesting using leaf color change observation as a criterion had significantly (p&lt;0.01) mitigated potato loss. In storage, female respondents (p&lt;0.05), land size (p&lt;0.05), and lack of training (p&lt;0.1) had accentuated loss. During transport, the age of household reduced (p&lt;0.1) loss whereas farming experience promoted (p&lt;0.1) it. To reduce the existing losses, farmers’ awareness should be increased concerning each stage. The study recommends the need for stakeholders’ intervention focusing on postharvest knowledge and skill capacity building, demonstration of simple innovative ventilated storage construction using locally available materials, appropriate packaging (such as reusable plastic crates) and transport methods, and simple value addition methods (such as potato drying using indirect solar dryers and potato flour processing for fortifying local cereals). Key words: CAPI, Ethiopia, ordinal probit regression, postharvest practices, potato loss determinants

Natural Compounds and Derivates: Alternative Treatments to Reduce Post-Harvest Losses in Fruits

The effects of phytopathogenic fungi on fruits and vegetables are a significant global concern, impacting various sectors including social, economic, environmental, and consumer health. This issue results in diminished product quality, affecting a high percentage of globally important fruits. Over the last 20 years, the use of chemical products in the agri-food sector has increased by 30%, leading to environmental problems such as harm to main pollinators, high levels of chemical residue levels, development of resistance in various phytopathogens, and health issues. As a response, various organizations worldwide have proposed programs aimed at reducing the concentration of active compounds in these products. Priority is given to alternative treatments that can mitigate environmental impact, control phytopathogens, and ensure low residuality and toxicity in fruits and vegetables. This review article presents the mechanisms of action of three alternative treatments: chitosan, citral, and hexanal. These treatments have the potential to affect the development of various pathogenic fungi found in tropical and subtropical fruits. It is important to note that further studies to verify the effects of these treatments, particularly when used in combination, are needed. Integrating the mechanisms of action of each treatment and exploring the possibility of generating a broad-spectrum effect on the development of pathogenic microorganisms in fruits is essential for a comprehensive understanding and effective management.

Gold nanoparticles-based colorimetric method for the rapid and sensitive detection of sour rot in onions

Onion (Allium cepa L.) is a major vegetable used in food preparation. It can also act as a medicinal compound for many diseases. However, various plant diseases, including sour rot, caused by the bacterium Burkholderia cepacia, is a post-harvest disease that can cause significant economic losses in onions and are considered a major threat to the onion industry. This study was performed to compare two methods for detecting sour rot: multiplex PCR and colorimetry with gold nanoparticles probe. Multiplex PCR used, primers designed for RecA, APZ15-03995 and APZ15-27735 genes of B. cepacia, and the results showed 100% specificity and sensitivity of 74.4 × 10−4 ng/μL of genomic DNA. Colorimetry with gold nanoparticles probe was performed using individual gene probes or a combination of three gene probes as a multi-colorimetric assay. Results showed 100% specificity and sensitivity of 74.4 × 10−8 ng/μL of genomic DNA in presence of the three probes. The results showed that both methods are specific and sensitive enough to detect B. cepacia. However, the use of gold nanoparticles is a more suitable option due to its high specificity and sensitivity and shorter time compared to multiplex PCR. Consequently, accurate and timely molecular identification of onion rot helps reduction of post-harvest losses and prevent the spread of secondary bacteria in storage.

How to Reduce Post-Harvest Losses ? A Theoretical Assessment of a Support Policy versus a Regulation Policy.

L’article analyse deux politiques publiques mises en œuvre pour réduire les pertes alimentaires post-récolte : une politique basée sur une norme logistique minimale (MLS) imposée aux producteurs et une politique basée sur le subventionnement de la logistique des producteurs. Nous proposons un modèle de différenciation spatiale où les producteurs de produits périssables sont géographiquement situés et plus ou moins éloignés d’un marché de gros. Nous évaluons différents effets de ces politiques : effets directs (sur les pertes alimentaires) et effets « collatéraux » (sur les prix et sur l’exclusion des producteurs). Par rapport à la situation sans intervention publique, l’imposition d’un MLS améliore uniquement l’infrastructure des producteurs les plus proches du marché, tandis qu’une subvention publique est plus efficace pour améliorer l’infrastructure des producteurs les plus éloignés du marché. Nous montrons que les autorités publiques peuvent être confrontées à un dilemme : i) choisir un MLS plus efficace pour réduire le risque de perte alimentaire mais avec des effets plus négatifs sur l’inclusion des producteurs et sur le bien-être social ; ii) choisir une politique de subvention moins efficace pour réduire les pertes alimentaires mais (si le niveau n’est pas trop élevé) avec des externalités plus positives sur les autres critères. Classification JEL : L11, R39, C61, D21

Assessment of factors influencing adoption of postharvest loss reduction practices along the mango value chain in Embu, Machakos, and Nairobi counties, Kenya

Use of loss reduction practices are critical to ensuring losses are reduced significantly along the value chain. This necessitates for the need to assess the factors that influence adoption of the loss reductio practices to have better targeting and development. Therefore, the current study assessed the factors that influence adoption, and multistage sampling technique was employed. The counties and the sub-counties were purposively selected, and the mapping began from Nairobi which is the main market for mangoes. Wholesalers, and retailers were interviewed making use of snowballing, while farmers were randomly selected. A total of 70 farmers were selected, 74 wholesalers, and 98 retailers were sampled.From the study, at the farm level results revealed that about 38.7 % of the farmer respondents prefer use of stick and bag. On the other hand, about 37.1 % of farmers in Machakos had preference of hand picking as the main method of harvesting. Wholesaler preferred the use of cartons in Nairobi, while those in Embu and Machakos had higher preference of use of shades. Result from the empirical model showed that credit was a critical factor to use of the practices at the farm with a 40 % influence on use of multiple practices. Experiencing higher losses influenced adoption of the practices by 4.3 %, and would influence use of multiple practices by 19.2 %. Organized selling was the critical factor for wholesalers and influenced adoption by 43.4 %.Retailers in Embu and Machakos on the other hand, were 19.9 % less likely to take up the practices. The results further showed that higher PHL influence retailer to take up loss reduction practices by 30.2 %, and those that were more experience were 20 % more likely to take up the practices.From the result it was thus concluded that cost effectiveness, ability to reduce losses, and increase of incomes were some of the things actors were interested with before they could take up any loss reduction practice. Through the study it was evident that high PHL less to higher use of the practices, and also positively influence the intensity of use of the practices. It was thus recommended that there is need for upgrading the current low-cost technologies to make them more user friendly so that they are not time-wasting during harvest, and for the traders they are able to carry optimal quantities that lead to profit maximization.

Oligogalacturonides reduced postharvest losses by alleviating mechanical damage in Goji berry (Lycium barbarum Miller)

Goji berry (Lycium barbarum) is a typical berry with a tender and thin pericarp, high moisture content and hollow interior, making it highly susceptible to mechanical damage caused by harvest and transportation. As a consequence, this susceptibility results in considerable economic losses within the fresh produce industry due to the degradation of fruit quality and subsequent decay. Here, oligogalacturonides (OGs), a well-characterized plant damage-associated molecular pattern, were applied to reduce postharvest loss and extend the shelf life of berries of the goji cultivar NingQi1. The loss rate in the OGs treatment was 44.45 % lower than that in the 0.8 mm compression treatments on Day 6, and the OGs treatment also effectively inhibited softening and delayed weight loss. The activity of superoxide dismutase increased by 27.4 % on the 4th day after OGs treatment, accompanied by a decrease in malondialdehyde content ranging from 14.2 % to 24.8 % on days 2 to 4 compared to the control group. Furthermore, the phenylalanine ammonia-lyase activity of OGs-treated goji berries was 57.0 % higher than that of the control at 6th days, which slowed the reduction in secondary metabolites such as total flavonoids. The findings of this study indicated that OGs may reduce postharvest losses caused by mechanical damage, extend the shelf life of goji berry by reducing softening and weight loss, and reduce wounding injury by minimizing free radical form of reactive oxygen species.

Effect of Asparagus Chitosan-Rutin Coating on Losses and Waste Reduction During Storage

Abstract Storage is a crucial component of a sustainable and efficient food supply system. Reduction of postharvest losses and waste is a vital strategy to improve efficiency, ensure product availability, and reduce environmental impact. Asparagus (Asparagus officinalis L.) boasts a high nutritional value and complex of phytonutrients. Yet, the storage period for fresh asparagus is quite short, leading to rapid quality deterioration. An effective method to extend storage periods involves postharvest treatments using the natural biopolymer chitosan. The aim of the research was to assess the effectiveness of applying sustainable postharvest treatments based on chitosan and rutin, with a focus on losses and waste reduction during asparagus storage. The impact of the applied storage technology on the visual appeal and sensory attributes of asparagus, along with its effects on respiratory metabolism, weight loss, soluble solids, soluble carbohydrates, chlorophylls, and carotenoids, was systematically assessed. The findings indicate that the post-harvest treatment using chitosan and rutin effectively preserves the visual characteristics of asparaguswhen the storage period is prolonged to a week. A major advantage of this technology is a substantial reduction in waste, achieving the levels of 1.0-1.5%. The proportion of standard products post-storage ranged from 94.4% to 96.0%. The treatment with chitosan and rutin efficiently reduces weight loss by half and suppresses the respiration rate, leading to decreased losses in soluble solids, carbohydrates, chlorophylls, and carotenoids during storage. These outcomes underscore the effectiveness of the applied coating in impeding metabolic processes, resulting in minimized quantitative and qualitative losses in the product quality during a prolonged storage.

A Scoping Review of Postharvest Losses, Supply Chain Management, and Technology: Implications for Produce Quality in Developing Countries

Highlights A scoping review of 385 articles containing relevant literature, research studies, and connections among postharvest losses, produce quality, supply chain management, and technology use was performed. Several postharvest factors, including handling, pre-cooling, washing and sanitation, sorting and grading, packaging, storage, and transport, play key roles in maintaining produce quality, but stakeholders in developing countries or emerging economies often lack access, infrastructure, equipment, and capital, resulting in significant losses. Supply chain management plays an important role in reducing postharvest losses, yet managerial, socioeconomic, and supply hindrances create impediments to fresh food industries in developing countries. Recently developed technologies in cold storage, artificial intelligence, and tracking and tracing can have a significant impact on produce quality, and while developing countries have adopted new technologies rapidly, there are still financial, social, and regulatory obstacles limiting uptake. Abstract. Rising global population and increased demand for fresh food, especially in developing countries, underscore the critical need to address postharvest losses to ensure food security. Effective postharvest practices, supply chain management, and technology are key factors to sustaining produce quality. However, the magnitude and nature of these factors vary between developed and developing countries. Developed countries tend to have more efficient supply chain management systems, a highly skilled workforce, and greater access to advanced technologies, leading to a higher level of produce quality and fewer postharvest losses. In contrast, developing countries often suffer from inadequate infrastructure, a lack of access to modern technologies, a lack of skills to properly grade, sort, package, transport, and store produce, as well as poor quality control. Addressing these issues through improved supply chain management, the adoption of appropriate technologies, and training and education could lead to a reduction in postharvest losses, produce quality that is maintained, and a safer, more secure food supply. This article presents a scoping review of literature on postharvest factors, technologies, and practices resulting in the deterioration and losses of fruits and vegetables in fresh food supply chains, with an emphasis on developing countries. Existing and emerging technologies and supply chain management practices that maintain quality and facilitate the delivery of high-quality produce were highlighted. First, a conceptual framework for supply chains is presented to guide discussion on technical, economic, and policy opportunities and to provide insights that may strengthen the resilience of food systems in developing countries. Next, techniques and practices used in the produce industry were summarized, including how effective supply chain management can maintain quality and reduce postharvest losses at key distribution stages. Finally, recent literature on technology, applications, and barriers to adoption is presented, and strategies to strengthen supply chain resilience in developing countries are discussed. Keywords: Developing countries, Food loss, Food security, Postharvest losses, Postharvest management, Produce quality, Smallholder farmers, Supply chain management, Technology adoption.