Types Of Packaging Research Articles

“Bio‐based Plastic? Hm, I've Never Seen It!”—A mixed‐methods investigation into consumer preferences for different packaging material of fresh apples and tomatoes

AbstractPackaging of fresh fruits and vegetables is standard in many grocery stores. This mixed methods study aims to identify the role packaging plays in consumer choice and what packaging material consumers prefer. We analyzed data from quantitative stated preference experiments with a quota sample of 485 consumers living in Germany. In addition to the experiments, we conducted a qualitative study and analyzed data from 13 consumers who participated in think aloud protocols and responded to open‐ended questions. We analyzed the data from the quantitative and qualitative studies separately and then systematically compared their key findings. Choice‐based conjoint analyses showed that packaging was less important than price and origin in consumers' decisions, but that consumers clearly preferred unpackaged to packaged produce. This is true for both apples, a relatively robust produce, and tomatoes, which are more susceptible to damage. The qualitative research indicated that consumers appreciate the ability to see and choose an unpackaged product, but also see some benefits of packaging, such as the protection of the produce. Overall, we found that by combining qualitative and quantitative insights, we were able to identify overlapping but also distinct facets of consumer preference for fresh produce packaging. Regarding the use of bio‐based plastics for fresh produce, our results indicate that German consumers were not currently inclined to choose this type of packaging, and evidence suggests that they have little knowledge and/or awareness about it. Our findings have implications for researchers, marketing practitioners, packaging manufacturers, and policy makers. [EconLit Citations: D12, Q50].

Environmental Life Cycle Assessment of Two Types of Flexible Plastic Packaging under a Sustainable Circular Economy Approach

While it is of great importance to evaluate plastic waste within the framework of a circular economy today, it is also of great importance to evaluate flexible plastic packaging, which is increasingly used in order to prevent environmental problems. To avoid the disadvantages experienced in recycling due to its multilayer nature, in this study, a life cycle assessment was made for flexible packages consisting of PET/metallized PET/PE and PP/metallized PP/PP with the data provided by the R&D Center of Elif Plastik Ambalaj Sanayi ve Tic. A.Ş.-Huhtamaki Flexibles Istanbul. Within the scope of this evaluation, two types of flexible packaging were analyzed, and an optimal flexible packaging structure for Türkiye was revealed by comparing different scenarios based on different methods in SimaPro 8.1.1.16. LCA was performed for both packages with cumulative energy demand (CED) and CML-IA methods. Four scenarios with different amounts of recycled raw materials were compared against the existing system and a fifth scenario, where electricity is assumed to be obtained from solar energy. Overall, we found that the largest environmental impact was in the existing system. However, despite being a renewable energy source, we observed that the solar energy scenario had almost as significant an impact as the existing system. When scenarios involving recycled raw materials were examined, we clearly observed that as the amount of recycled raw materials increased, the environmental impact decreased. Therefore, it emerged that the scenario with the highest amount of recycled raw materials is the most optimal scenario in many respects. There are clear differences in the results due to differences in plastic types. This study, conducted with real data, is highly important for the flexible packaging literature. A table has been provided for changing the type of plastic, changing the source of electricity generation, and reducing waste by using recycled raw materials in order to make flexible packaging more environmentally beneficial.

Fan-out panel-level package warpage and reliability analyses considering the fabrication process

With the continuous advancement of IC packaging technology, 3D and 2.5D packaging systems have emerged as the prevailing trends. The advantages of large area and high I/O density have made fan-out panel-level packaging (FOPLP) been considered as one of the best package types for 3D and 2.5D packaging applications. The discussions about FOPLP have been popular recently. Warpage and reliability of FOPLP are the main concerns of packaging engineers. However, it was found that warpage and reliability of FOPLP are strongly related to the fabrication process but not many research works have been published. Thus, reliability analysis procedure considering the residual stress of fabrication process was proposed in this paper to observe warpage and stress distribution during fabrication process. Then, this research procedure facilitates subsequent fatigue life calculations and predicts reliability of the package.First, the thermal stresses and warpage of the redistribution layer-first (RDL-first) process were conducted for an entire panel. Next, warpage and thermal stress analyses were conducted for a strip encapsulated with an epoxy molding compound (EMC) during compression molding. Then, a reliability analysis was conducted with an IC unit and incorporated the consideration of the residual stress induced during the fabrication processes.The compression molding analysis utilized the pressure–volume–temperature–cure (P–V–T–C) model to account for both the volume shrinkage caused by a thermal mismatch and the chemical shrinkage. Furthermore, dual shift factor model was used to model the viscoelastic behavior of EMC in this study during PMC analysis effectively.An observation of the stress distribution for an IC unit revealed that the maximum stress position was at the solder ball near the periphery, with a stress value of 147.309 MPa. The fatigue life calculated using the modified Coffin–Manson fatigue model was 417 cycles.

Development of Public Education in the Use of Plastic in Food on Health and Environment in High School of Agribusiness at Bengkulu City

The background of this of using plastic for food packaging. Materials classified as plasticizers include types such as polyvinyl chloride (PVC) and bisphenol-A (BPA), with Styrofoam also falling into the category of plastics often used for food containers despite their adverse effects. High school Agribusiness Dangau Datuk Bengkulu possesses skills in food production, maintenance, and distribution, yielding processed foods such as ice cream, ground coffee, and various other products. Vocational students market their processed products using plastic packaging. Therefore, the aim of this initiative is to impart knowledge on the use of plastic packaging in food products and its effects on health and the environment. This endeavor can enhance community abilities, particularly those of vocational students who have filled out questionnaires, numbering around 20 people. The activities are conducted through coaching methods, which involve coordination with partners, counseling, demonstrations, and promoting sustainability. Counseling materials encompass the functions of packaging for food products, types of packaging, plastic as a food product packager (including types and raw materials), the impact of using plastic packaging on health and the environment, and tips for safely utilizing plastic packaging. The educational activities proceeded smoothly, with enthusiastic participation from the attendees. The evaluation results indicated a positive and beneficial impact, ensuring that all participants acquired knowledge about the use of plastic packaging. Consequently, participants are now equipped to select appropriate packaging for the food products they produce.

CURRENT STRATEGIES FOR THE USE OF ACTIVE PACKAGING IN FOOD PRODUCTS

Food quality and safety is one of the most important aspects of the food industry. One of the key factors to ensure food safety is packaging. Increasing number of food packaging materials is creating a demand for promoting products and brands that are safe for consumption. Food spoilage due to poor quality packaging causes huge loss not only to businesses but also to consumers. Despite the effectiveness of existing practices, retailers still face many challenges, including the materials used and their possible interaction with food. In addition, the transfer of harmful materials from packaging materials to food is still an issue. It is important to use the right material for the right type of product. This review discusses the recent research on the application of active packaging used in various types of food packaging to enhance the safety performance and shelf life of various food products by using antifungal peptides, ethanol and plant extracts. This is in response to consumer demand for preservative-free products as well as more natural, disposable, biodegradable and recyclable food packaging materials.

Stability of bocaiuva (Acrocomia spp.) mass candy stored in different packages

Bocaiuva (Acrocomia spp.) is a fruit native to areas of Cerrado and Pantanal that stands out for its nutritional value, presence of bioactive substances, and high pulp yield. The aim of this study was to develop a mass candy of bocaiuva, characterize it physicochemically, quantify the retention of bioactive substances, evaluate the physicochemical and microbiological stability and sensorial acceptance for up to 120 days, and verify the effect of different types of packages and storage time on the developed product quality. The prepared mass candy was stored in plastic packages of terephthalate polyethene that were transparent and metallized. We have characterized its centesimal composition and microbiological and sensorial stability, evaluating its color, moisture, pH, soluble solids, titrable acidity, retention of ascorbic acid, carotenoids, total phenolics, and antioxidant capacity. The results indicated that the bocaiuva mass candy stays stable for physicochemical, microbiological, and sensory parameters over storage and that the metallized polyethene terephthalate package best conserves the bioactive substances.

The combined effect of vacuum-skin packaging and oxygen absorbers on the color stability and physicochemical properties of wet-aged Chikso beef

Beef discoloration during wet aging is mainly attributed to deoxymyoglobin or metmyoglobin accumulation. We applied advanced packaging methods including vacuum-skin packaging, oxygen absorbers, and their combination to maintain color stability and physicochemical attributes of Chikso beef during aging. Meat blocks from semimembranosus muscle were assigned to a 2 × 2 factorial arrangement that involved two packaging types (conventional vacuum packaging and vacuum-skin packaging) and the presence of oxygen absorbers (exclusion or inclusion) inside a package. After packaging, samples were wet-aged for 28 days. Addition of oxygen absorbers significantly increased beef color stability. Vacuum-skin packaging significantly increased metmyoglobin reducing activity and retarded lipid oxidation of beef. Moreover, their combination significantly prevented visual beef discoloration evaluated by panelists. Therefore, combination of these two packaging technologies could be effective in maintaining color stability and physicochemical attributes of Chikso beef during aging.

Managing Household Food Waste with the FoodSaveShare Mobile Application

It is estimated that European households are responsible for 55% of food waste generation. Key factors contributing to household food waste generation include food spoilage, confusion over expiration dates, overbuying, and inadequate shopping planning. Thus, food waste prevention at the household level depends heavily on food supplies monitoring and management. To this end, during the last decade, several consumer-oriented digital tools have been designed and launched. A literature review showed that currently accessible digital tools are scarce and cover a narrow range of functionalities. Here, we address these issues by designing and launching a decision support tool implemented in a smart mobile phone application (app), the FoodSaveShare Mobile App. The application development followed a traditional client–server architecture using state-of-the-art software and hardware technologies. Additionally, a survey of 340 individuals was conducted to better understand end-user motivation for and barriers against adopting this and similar apps. The developed application combines user-provided data with a retailer loyalty program to leverage the integrated features for tracking shopping activities. The app features a household shopping list populated by product barcode scanning and manual entry. Based on food and packaging type, food products are assigned approximate expiration dates to issue product expiration reminders. For products about to expire, suggestions for their utilization are provided, drawing from a list of over 7000 recipes. Additional functionality allows users to identify products that have either been consumed in time or that need to be discarded. Analytical tools, such as past purchase and resources discarded versus resources saved statistics, offer comprehensive insight and encourage improved shopping and consumption practices. The FoodSaveShare App was launched during the A2UFood Project, which allowed an organised campaign for its use. The app was tested under real customer data and conditions, and selected features have been adopted by the largest supermarket chain on the Island of Crete, Greece. The potential end-user survey results suggest that, provided personal data use issues are addressed, such apps can have a significant impact on reducing household food waste. Future work will focus on analysing the datasets produced by the application to assess its impact on household food waste management.

CONSUMERS’ BEHAVIOUR AND THEIR WILLINGNESS TO ACCEPT GREEN PACKAGING: A CASE STUDY IN VIETNAM

Objectives: This study specifically focuses on examining customers' purchasing behaviour and their acceptance of green packaging as a replacement for single-use plastic bags.   Method: The data used in this study are primary, including survey data obtained from the respondents. We designed a questionnaire related to examining customers' purchasing behaviour and their acceptance of green packaging. We determined the observed variables (scales) of examining customers' purchasing behaviour and their acceptance of green packaging based on previous studies. Structural Equation Modelling and Willingness to Accept models were utilised to achieve the study's objectives.   Results: The results demonstrate that personal attitude statistically significantly influences respondents' purchasing behaviour. Moreover, the findings indicate that the expenditure level and the types of green packaging have an impact on the respondents' willingness to accept green packaging as a substitute for single-use plastic bags.   Conclusions: This article is an academic contribution that enables understanding of customers' purchasing behaviour and their acceptance of green packaging. To promote the use of green packaging, it is crucial for business planners to prioritise obtaining and maintaining necessary certifications for their green products. It is imperative for policy-makers to actively assume a crucial role in promoting the adoption of green packaging through official government channels, public institutions, and targeted communication campaigns.

MONITORING OF MODERN CARBON FRACTION IN DISPOSABLE PACKAGING

ABSTRACT Radiocarbon (14C) methodology was used to investigate the presence of biocarbon in different bio-based disposable packaging products. Packaging waste contributes to a municipal solid waste, which is increasing environmental concerns and resulting in the enhancement of EU regulations that aim to reduce packaging waste. The 14C amount in samples reflects how much of the biocarbon has been used. In this study, the concentration of 14C was determined in commonly used types of disposable packaging, such as cups, plates, straws, cutlery, and baking paper. Samples were made of materials such as paper, wheat bran, sugarcane, and wood. The mean concentration of the 14C isotope, measured by the accelerator mass spectrometry (AMS) technique, is greater than 100 pMC in all tested samples, indicating that the samples are modern. The relatively high 14C concentration values in the waterproof layer of the sample indicate that bioplastic, rather than plastic, was used in its production. The highest 14C isotope concentration values were measured for samples that used the oldest biomass (wood and paper), and the lowest for products from current crops (sugarcane and wheat bran), which is consistent with the trend of changes in 14C concentration in the biosphere. The study also addresses the problem of heterogeneity and representativeness of subsamples.

Legumes on the Rise: The Impact of Sustainability Attributes on Market Prices

Despite their environmental value and important role in human nutrition and food security, legumes, including lentils, have been underestimated. Nevertheless, nowadays there is a renewed interest in their consumption due to regional specialization, varietal diversity and their role in the transition towards sustainable production and consumptions systems. Recent years have also witnessed a rise in consumer awareness regarding sustainable food, healthier and plant-based diet and regional or local food systems. The aim of this paper is to evaluate the influence of attributes linked to sustainability, such as biodiversity, organic certification, origin indication, and packaging type, on lentils’ market prices in Italy. Based on the Hedonic Price Model, and following a review of scientific literature, eight lentil characteristics are defined. Data were collected on 228 valid observations of dry and precooked lentils across 20 different retail stores. Results indicate that Italian consumers have a positive appreciation for lentils with organic certifications and references to geographic and territorial characteristics. Some lentil varieties hold unique market positions, suggesting opportunities for diverse product offerings. Packaging materials influence consumer valuation, reflecting trends towards healthy and convenient food options. These insights will aid stakeholders in fostering sustainable practices and enhancing market competitiveness in the Italian lentil market.

Anammox process in anaerobic baffled biofilm reactors with columnar packings: Characteristics of flow field and microbial community

The enrichment of anammox bacteria is a key issue in the application of anammox processes. A new type of reactor － anaerobic baffle biofilm reactor (ABBR) developed from anaerobic baffle reactor (ABR) was filled with columnar packings and established for effective enrichment of anammox bacteria. The flow field analysis showed that, compared with ABR, ABBR narrowed the dead zone so as to improve the substrate transferring performances. Two ABBRs with different types of columnar packings (Packings 1 and Packings 2) were constructed to culture anammox biofilms. Packings 1 consisted of the single-form honeycomb carriers while Packings 2 was modular composite packings consisting of non-woven fabric and honeycomb carriers. The effects of different types of columnar packings on microbial community and nitrogen removal were studied. The ABBR filled with Packings 2 had a higher retention rate of biomass than the ABBR filled with Packings 1, making the anammox start-up period be shortened by 21.28%. The enrichment of anammox bacteria were achieved and the dominant anammox bacteria were Candidatus Brocadia in both R1 and R2. However, there were four genera of anammox bacteria in R2 and one genus of anammox bacteria in R1, and the cell density of anammox bacteria in R2 was 95% higher than that in R1. R2 has the advantage of maintaining excellent and stable nitrogen removal performance at high nitrogen loading rate. The results revealed that the packings composed of two types of carriers may have a better enrichment effect on anammox bacteria. This study is of great significance for the rapid enrichment of anammox bacteria and the technical promotion of anammox process.

Operational performance of light electric freight vehicles in the last mile: two Nordic case studies

PurposeTo assess the introduction and performance of light electric freight vehicles (LEFVs), more specifically cargo cycles in major 3PL organizations in at least two Nordic countries.Design/methodology/approachCase studies. Interviews. Company data on performance before as well as after the introduction. Study of differing business models as well as operational setups.FindingsThe results from the studied cases show that LEFVs can compete with conventional vans in last mile delivery operations of e-commerce parcels. We account for when this might be the case, during which circumstances and why.Research limitations/implicationsInherent limitations of the case study approach, specifically on generalization. Future research to include more public–private partnership and multi-actor approach for scalability.Practical implicationsAdding to knowledge on the public sector facilitation necessary to succeed with implementation and identifying cases in which LEFVs might offer efficiency gains over more traditional delivery vehicles.Originality/valueOne novelty is the access to detailed data from before the implementation of new vehicles and the data after the implementation. A fair comparison is made possible by the operational structure, area of delivery, number of customers, customer density, type of packages, and to some extent, the number of packages being quite similar. Additionally, we provide data showing how city hubs can allow cargo cycles to work synergistically with delivery vans. This is valuable information for organizations thinking of trying LEFVs in operations as well as municipalities/local authorities that are interested.

Phase diagrams of anthracene derivatives in pyridinium ionic liquids.

Crystal engineering of π-conjugated molecules has attracted much attention because of their electronic, photonic, and mechanical properties. However, reproducibility is a problem in conventional printing techniques because controlling solvent evaporation is difficult. We investigated the phase diagrams of two anthracene derivatives in synthesized ionic liquids for non-volatile crystal engineering to determine the critical points for nucleation and crystal growth. Anthracene and 9,10-dibromoanthracene were used as representative π-conjugated molecules that form crystal structures with different packing types. Ionic liquids with an alkylpyridinium cation and bis(fluorosulfonyl)imide were good solvents for the anthracene derivatives from ca. 0 °C to 200 °C. The solubilities (critical points for crystal growth) of the anthracene derivatives in the ionic liquids reached the 100 mM level, which is similar to those in organic solvents. Ionic liquids with phenyl and octyl groups tended to show high-temperature dependence (a high dissolution entropy) with 9,10-dibromoanthracene. The precipitation temperature (critical point for crystal nucleation) at each 9,10-dibromoanthracene concentration was lower than the dissolution temperature. The differences between the dissolution and precipitation temperatures (supersaturated region) in the ionic liquids were greater than those in an organic solvent.

Chlorinated paraffins in takeout food and its packaging in Beijing, China and dietary exposure risk

Chlorinated paraffins (CPs) are hazardous to humans, and dietary intake acts as the primary pathway for human exposure to CPs. Takeout food is popular worldwide, but the presence of CPs in takeout food and its packaging is unclear. In this study, the concentrations and distributions of short- and median-chain CPs (SCCPs and MCCPs, respectively) were measured in 97 samples of four categories of takeout food and 33 samples of three types of takeout packaging. The SCCP and MCCP median concentrations for the takeout food samples were 248 and 339, 77.2 and 98.2, 118 and 258, 42.9 and 64.4 ng/g wet weight in meat, starch, half meat/half starch, and vegetables, respectively. Takeout food contained higher concentrations of SCCPs than MCCPs. The dominant SCCP and MCCP congener groups in takeout food were C10Cl6–7 and C14Cl7–8, respectively. The CP concentrations in takeout food were lower than those in packaging. The SCCP and MCCP median concentrations, respectively, in packaging were 9750 and 245 ng/g in polypropylene, 2830 and 135 ng/g in paper, and 2060 and 119 ng/g in aluminum foil. The concentrations of SCCPs and MCCPs were comparable in aluminum foil, whereas the concentrations of SCCPs were higher than those of MCCPs in polypropylene and paper. Correlations between CP concentrations in the takeout food and packaging indicated that CPs in packaging were potentially an important source of CPs in the takeout food. A dietary exposure risk assessment showed the takeout food posed a low risk for human exposure to CPs; however, high-frequency consumption may pose a health risk. This study clarified the current contamination situation in takeout food in Beijing, China. The resulting data could be used to prevent human exposure to CPs through dietary intake and to facilitate the market's control over the quality of takeout food.

Color and Firmness Quality Changes of Java Apple During Postharvest Transportation and Storage

Transportation vibration adversely affects fresh produce during transportation. In addition, storage temperature affects the quality of fresh commodities. The physical changes in Java apples during transportation and storage were evaluated in this study. Java apples were transported from local farms to wholesale markets (180 km). Java apples were stored at room temperature (28°C) for six days. Physical qualities such as weight loss and firmness of the Java apple samples were evaluated. The RGB image acquisition system was used to assess changes in the color of the Java apple. The vibration showed that more than 70% of the acceleration occurred between 220-290 cm/s2 in the vertical and horizontal directions during transportation. Analysis showed that physical qualities, such as weight loss and firmness, were strongly affected by the packaging used, vibration during transportation, and storage temperature. The weight loss and reduction in firmness was highest in Java apples transported using wholesaler packaging (packaging A). The lightness, yellowness, and hue values decreased significantly because transportation vibration was relatively high, and the Java apples were stored at room temperature. Redness, total color difference, and color index increased significantly in Java apples that were transported using package A and stored at room temperature. The results showed that the use of transportation packaging affected changes in the physical quality of Java apples. Packaging A generally increase in weight loss, hardness, and changes in fruit color than other packaging types.

Experiment on long-term storage of vegetable seeds under natural conditions

Preservation of the genetic diversity of crop plants and genetic collections of cultivated plants in a living state is an important state task. Seeds are a convenient form of storing genetic material, as the specimens are small in volume, require relatively little care, and remain viable for a long period. The genetically determined period of seed viability can be signifi cantly extended by creating optimal storage conditions. Therefore, it is necessary to search for or create environmental conditions under which seeds could remain viable for as long as possible. There are modern high-tech seed storage facilities in the world, but in the event of emergency situations, natural storage facilities, one of which is located on the Taymyr Peninsula, will be in a more advantageous position. Since 1974, an experiment has been carried out to study the safety of various products in diff erent types of packaging in permafrost conditions with the participation of a number of research institutions. Employees of the breeding laboratories selected seeds of 27 varieties of seven main types of vegetable crops; the samples were planted in triplicate, in accordance with the planned three extraction dates: in 2022, 2028, and 2034.

Dehydration of phenolic-rich extract from rambutan (Nephelium lappaceum L.) peel by foam mat drying

Foam mat drying was used for the dehydration of a phenolic-rich rambutan peel extract. Foam products were evaluated for their physicochemical stability during storage. Experiments were carried out to determine the effect of foaming (10% of egg albumin/soy protein/pea protein) and stabilizing agents (0.5% of methylcellulose); storage conditions i.e. type of packages (polyethylene, glass), packaging techniques (modified atmosphere packaging, vacuum) under light or dark at 30 °C on phenolic compositions, antioxidant activity, water activity (aw), and color of foam products during 5 months storage. Foam products produced from egg albumin showed the highest total phenolic content (TPC) (8.73 ± 0.17 mg GAE/g) and antioxidant activity (7.47–9.70 mg TE/g). During storage, TPC, antioxidant activity, and the amount of individual phenolic compounds (geraniin, corilagin, rutin, ellagic acid, and quercetin) mostly decreased independent of the presence of light. Aw in all samples increased from 0.25 to 0.38 - 0.45 (except for the samples in glass packaging); whereas the color of the samples was insignificantly changed for 5 months. Rambutan peel phenolic-rich extract encapsulated within egg albumin can be stored at least 5 months with minimal quality changes and might be used as a food preservative ingredient.

Edible packaging as sustainable alternative to synthetic plastic: a comprehensive review.

The choice of an appropriate packaging materials enhances the shelf life and improves quality of food during transportation, storage, and distribution. Development and innovations in food packaging systems have become essential in the food industry. Most widely used packaging materials are non-biodegradable plastics and are harmful to environment and human health. Thus, food industry is replacing non-biodegradable plastics with biodegradable plastics to reduce environmental pollution, health hazards, and food waste. Edible packaging may reduce food waste and keep perishables fresh. This review article compares edible packaging materials to synthetic ones and discusses their pollution-reducing effects. The several types of food packaging discussed in the review include those produced from polysaccharides, proteins, lipids, and composite films. The various characteristics of edible packaging are reviewed, including its barrier qualities, carrier properties, mechanical capabilities, and edibility. The carrier properties describe the capacity to transport and manage the release of active substances, and the edibility indicates acceptance of these items by the customers. Plasticizers, antimicrobials, antioxidants, and emulsifiers were included in the edible packaging to enhance the characteristics of the film. The development and implementation of edible packaging on food products from the laboratory to large-scale industrial levels, as well as their potential industrial applications in the dairy, meat, confectionary, poultry, fish, fruit, and vegetable processing sectors are addressed.

Electricity-carbon coupling retail package optimization considering low-carbon benefits of distributed renewable energy

Distributed renewable energy has developed rapidly in recent years, but its low-carbon value is usually ignored due to its limited individual capacity. It will be an important business for electricity retailers to aggregate these distributed renewable resources and make use of their carbon emission reduction benefits. Therefore, this paper proposes a business model for electricity retailers based on electricity-carbon coupling retail packages. Firstly, a framework of the business model is proposed to support distributed renewable energy transaction among the electricity retailer, prosumers, and consumers. Secondly, dynamic carbon evaluation mechanism-based electricity-carbon coupling retail packages are designed, which contain three types of generation packages for prosumers (e.g., fixed subsidy package, dynamic subsidy package and daytime generation package) and three types of consumption packages for consumers (e.g., daytime consumption package, nighttime consumption package and minimum consumption package). In addition, a single-leader and multi-followers Stackelberg game model is constructed to optimize the designed packages. Especially, the electricity retailer aims at maximizing its profit considering conditional value at risk (CVaR) as the leader. Meanwhile, prosumers and consumers respectively aim at maximizing their profit satisfaction and comprehensive satisfaction as followers. Finally, the particle swarm optimization (PSO) algorithm and CPLEX commercial solver are both used to obtain the model's Nash equilibrium (NE). Example analysis verifies the designed electricity-carbon coupling retail packages can utilize the low-carbon value of distributed renewable resources and improve the benefits and satisfaction of prosumers and consumers.