Alcohol Packaging Research Articles

Carboxymethyl cellulose – Polyvinyl alcohol bioactive films loaded with green extracted date seed polyphenols for active packaging of Shiitake mushrooms

This study investigated the use of a natural deep eutectic solvent-based polyphenolic extract (DSE) from date fruit seed as a bioactive and functional component for the development of carboxyl methylcellulose-poly(vinyl)alcohol (CMCPVA) packaging films. The impacts on the physicochemical, structural, water barrier and bioactive properties of the CMCPVA films were studied. Different concentrations of DSE (1.5%, 2%, 2.5%, and 3%) incorporated into CMCPVA film increased the total phenolic content (0.08–0.17 mg GAE/mL), DPPH scavenging activity (4.08–5.11 mmol GAE/mL), and ferric ion-reducing antioxidant power (0.82–1.46 μmol TE/mL) of the films. The antibacterial activities against S. aureus, L. monocytogenes, S. typhimurium, and E. coli were also improved. In particular, a 4–5 log reduction was recorded for CMCPVA film incorporated with 3% DSE. Also, the presence of DSE enhanced elongation at break (25.53%–93.23%) and film thickness (0.10–0.19 mm), whereas tensile strength (6.39–1.40 MPa) and Young's modulus (25.89–2.85 MPa) decreased. Furthermore, UV-shielding performance improved, opacity decreased from 2.93 to 0.86, while the water vapor permeability was not significantly affected which ranged from 3.01 to 5.83 (X 10−10 g/m.s.Pa). The application of CMCPVA film incorporated with 3% DSE (CMCPVA_3) as a bioactive film for preserving sliced and whole shiitake mushrooms at refrigeration temperature for 8–12 days was studied. The CMCPVA_3 film preserved the mushrooms' color, browning degree, and texture compared to the cling film-covered samples. There is a potential for the successful application of NADES-based polyphenolic extract in biopolymer films for food preservation.

Can a health warning label diminish the persuasive effects of health-oriented nutrition advertising on ready-to-drink alcohol product packaging? A randomized experiment.

A health warning label (HWL) cautioning about the link between alcohol and cancer may be able to communicate alcohol risks to consumers and potentially counter health-oriented nutrition advertising on ready-to-drink alcoholic beverages. This study aimed to examine the independent and combined effects of nutrient content claims (e.g. 0g sugar) and a HWL on perceived product characteristics and intentions to consume, and whether these effects differed by gender and age. A between-subjects randomized experiment. Participants were randomized to view one of six experimental label conditions: nutrient content claims plus nutrition declaration (NCC + ND), ND only, NCC + ND + HWL, ND + HWL, HWL only and no NCC, ND or HWL, all on a ready-to-drink (RTD) vodka-based soda container. Alcohol consumers (n = 5063; 52% women) in Canada aged 18-64 recruited through a national online panel. Participants completed ratings of perceived product characteristics, perceived product health risks, and intentions to try, buy, binge and drink the product. Compared with the reference condition NCC + ND (current policy scenario in Canada), the other five experimental label conditions were associated with lower ratings for perceiving the product as healthy. All experimental conditions with a HWL were associated with lower product appeal, higher risk perceptions and reduced intentions to try, buy and binge. The experimental condition with a HWL only was associated with intentions to consume fewer cans in the next 7days (β = -0.72, 95% confidence interval [CI] = -1.37,-0.08) versus the reference. Few interactions were observed, suggesting that label effects on outcomes were similar by gender and age. Health warning labels on alcohol packaging appear to be associated with lower product appeal, higher perceived health risks and reduced consumption intentions, even in the presence of nutrient content claims.

Optimization of regional cultural modern liquor packaging design based on computer vision algorithm

<p>In alcohol packaging, graphics, colors and text are social symbols. This article first uses the relevant principles of visual grammar to conduct a multimodal discourse analysis on the packaging pattern of Fen Liquor blue and white vases from multiple angles. Then, this paper uses human visual characteristics to improve product packaging styling effects. At the same time, a Gaussian filter is used to denoise the noisy wine packaging image, and then the image is used as an input image for grayscale transformation to obtain the guidance image. Research shows that in the multimodal discourse of Fen Liquor blue and white bottles, various forms such as images, text and colors can constitute and convey product information, mapping the history and culture of the product. This stimulates consumers’ visual senses and arouses consumers’ spiritual resonance to achieve the goal of promoting consumption.</p>

The effect of alcohol packaging size and strength on U.K. alcohol consumers' classification of alcohol products as containing a single or multiple drinks.

Reductions to the size and strength of alcohol products prompt reductions in alcohol consumption, although these effects may be limited to single drinks rather than packages that contain multiple drinks. This study investigated what product characteristics predict whether a product is seen as a single drink and seeks to identify the thresholds beyond which products are considered to contain multiple drinks. Ninety-four U.K. drinkers from the prolific participant panel categorized 250 alcohol products with varying packaging sizes and strengths into single or multiple drinks. We used multilevel logistic regression to investigate whether packaging size, strength, total alcohol content, and container type predicted the likelihood that products were classified as a single drink across five drink types (beer, cider, ready-to-drink, spirits, wine). We used receiver operating characteristics curve analysis to identify the point at which products become too large or too strong to be considered a single drink by most drinkers. Larger products, bottled drinks, products with higher alcohol by volume (ABV), and higher alcohol content were more likely to be classified as containing multiple drinks. We report thresholds for packaging size, ABV, and total alcohol content where products switch from being seen as a single drink to containing multiple drinks. The thresholds did not significantly differ between low-risk and increased risk drinkers. The reported thresholds can help researchers and policy makers encourage more accurate self-monitoring of alcohol consumption. Future research should test whether single drink classifications moderate the effect of packaging size and strength reductions on alcohol consumption. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Alcohol Packaging As a Promotional Tool: A Focus Group Study With Young Adult Drinkers in Scotland

Little research has been conducted on consumer perceptions of alcohol packaging as a marketing tool. The aim of this study was to explore how young adults view and engage with alcohol packaging. Eight focus groups were conducted in Glasgow (Scotland) with current drinkers (n = 50), segmented by age (18-24, 25-35), gender (female, male), and social grade (ABC1, C2DE). Participants were shown, allowed to handle, and asked about a range of alcoholic products. Five main themes emerged from the data. The first was the ubiquity of alcohol packaging, with frequent exposure reported in different settings, such as shops and drinking venues, and via marketing. The second was appeal, with pack graphics (e.g., color), structure (e.g., shape, size), and promotions (e.g., gifts, limited editions) allowing alcohol packs to catch attention, enabling products to stand out on shelves, and helping to create product and brand liking, interest, and choice. Third, alcohol packaging was frequently associated with specific occasions and activities. Fourth, alcohol packaging informed perceptions of product-consumer targeting, suitability, and intended drinker profiles. Fifth, alcohol packaging also engaged nonvisual senses (e.g., touch, sound, smell), guiding expectations of product taste and palatability. For young adult drinkers in Scotland, alcohol packaging can capture attention, create appeal, and help shape perceptions of the product, drinker, and drinking experience.

Supplemental Material for The Effect of Alcohol Packaging Size and Strength on U.K. Alcohol Consumers’ Classification of Alcohol Products as Containing a Single or Multiple Drinks

Supplemental Material for The Effect of Alcohol Packaging Size and Strength on U.K. Alcohol Consumers’ Classification of Alcohol Products as Containing a Single or Multiple Drinks

The role of alcohol packaging as a health communications tool: An online cross-sectional survey and experiment with young adult drinkers in the United Kingdom.

Alcohol packaging is a potentially valuable means of communicating product and health-related information, with growing academic and political interest in its role as a health communications vehicle. An online cross-sectional survey and experiment were conducted with a non-probability sample of 18-35-year-old drinkers in the United Kingdom (n=1360). The survey assessed exposure to, and engagement with, current messaging on packs, and support for displaying product and health-related information. For the randomised experiment, participants were shown, and asked questions about, a vodka bottle with either no warnings (control), small text warnings, large text warnings or pictorial (image-and-text) warnings; the main binary outcome measures were negative product appeal and social acceptability, and positive cognitive and behavioural impact. Two-fifths of the sample rarely or never saw on-pack health-related information, with almost three-quarters rarely or never reading or looking closely at this. There was strong support for displaying a range of product and health-related information (e.g. units, ingredients) on packs. Relative to the control, products with warnings were more likely to be perceived as unappealing and socially unacceptable, and to positively impact alcohol-related cognitions and behaviours. For example, pictorial warnings were 10 times as likely to positively influence cognitions and behaviours (AOR=10.01, 95% CI: 8.09, 17.46). Alcohol packaging could have an important role in delivering health messaging. Large pictorial or text warnings may help counteract the appeal and social acceptability of alcohol products and increase awareness of risks, potentially supporting a reduction in consumption and related harms.

Factors Associated with Adolescents' Support for Product Information and Health Messaging on Alcohol Packaging: A Cross-Sectional Study in the United Kingdom.

Adolescents in the UK are among the heaviest drinkers in Europe. The World Health Organization recommends alcohol product labelling to inform consumers about product information and health risks associated with alcohol use. This study investigates support for product information and health messaging on alcohol packaging among UK adolescents. The 2019 UK Youth Alcohol Policy Survey was an online cross-sectional survey among 3388 adolescents aged 11-19. Participants indicated their support for seven forms of messaging on packaging (e.g. number of alcohol units, links to health conditions). Logistic regression models investigated associations between support for each of the seven forms and alcohol use, perceived risks of alcohol use, and previous exposure to messaging. Between 60 and 79% of adolescents were supportive of different aspects of product labelling. Compared to lower-risk drinkers, higher-risk drinkers (AUDIT-C 5+) had higher odds of supporting including the number of alcohol units (OR: 1.82, 95% CI: 1.31-2.54), calories (OR: 1.52, 95% CI: 1.04-1.68), and strength of the product (OR: 1.73, 95% CI: 1.19-2.52) but lower odds of supporting including information on alcohol-related health conditions (OR: 0.68, 95% CI: 0.53-0.87). Adolescents who perceived risks of alcohol use more strongly were more likely to support all forms of product information and messaging. The majority of adolescents supported improved alcohol labelling. Higher-risk drinkers were supportive of improved product information but less supportive of health-related messaging. Adolescents who believe alcohol carries health risks were more likely to support messaging.

Alcohol packaging as a promotional tool: A focus group study with young adult drinkers in Scotland

Abstract Background Given the dearth of research on consumer perceptions of alcohol packaging as a marketing tool, with existing studies focused on children and adolescents, our aim was to explore how young adults view and engage with alcohol packaging. Methods Eight focus groups were conducted in Glasgow (Scotland) in September 2019 with young adult drinkers (n = 50), segmented by age (18-24, 25-35), gender (female, male) and social grade (ABC1, C2DE). Participants were shown, allowed to handle, and asked about, a range of alcoholic products. Data were analysed thematically using an inductive approach. Results Five main themes emerged from the data. The first was the ubiquity of alcohol packaging, with frequent exposure reported in different settings, such as shops and drinking venues, and via marketing. The second was appeal, with pack graphics (e.g. colour), structure (e.g. shape, size) and promotions (e.g. gifts, limited-editions) allowing alcohol packs to capture attention, enable products to stand out on shelves, and help create product and brand liking, interest and choice. Third, alcohol packaging was frequently associated with specific occasions and activities. Fourth, alcohol packaging informed perceptions of product-consumer targeting, suitability, and intended drinker profiles. Fifth, alcohol packaging also engaged non-visual senses, guiding expectations of product taste and palatability. Conclusions For young adult drinkers in Scotland, alcohol packaging can capture attention, create appeal, and help shape perceptions of the product, drinker and drinking experience. Key messages Alcohol packaging is a key marketing communications vehicle, which can attract attention, create product and brand liking, interest and choice, guide expectations, and influence purchasing decisions. Alcohol packaging conveys messages of consumer-product suitability and acceptability, helping to reinforce perceptions that alcohol is a desirable product via pack structure, graphics, and promotions.

Investigation of antibacterial activity of polyvinyl alcohol packaging films composed of silver oxide nanoparticles, graphene oxide and tragacanth gum using Box–Behnken design

The present study aimed to develop an antibacterial packaging system based on biodegradable polyvinyl alcohol (PVA) polymer. Box–Behnken design was used to investigate silver oxide nanoparticles, graphene oxide and tragacanth gum as film additives to obtain maximum antibacterial activity against Staphylococcus aureus and Escherichia coli. The experimental design showed the inhibitory effect of graphene oxide and tragacanth gum on the antibacterial activity of PVA films containing Ag2O nanoparticles. The optimum film containing 5% Ag2O nanoparticles (% of PVA weight) was prepared and characterized using scanning electron microscopy and energy‐dispersive X‐ray spectroscopy (SEM‐EDS), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric/differential thermal analyser (TG‐DTA). Results of this study showed the formation of PVA film with 0.04‐mm thickness, with a higher density of Ag2O nanoparticles (25‐ to 75‐nm size) around the upper surface. Compared with blank PVA film, the optimum film showed higher tensile strength and thermal stability. It was also more efficient in water vapour and oxygen barrier properties, along with preserving raw beef samples by inhibiting the growth of beef natural bacteria for at least 7 days, when stored in the refrigerator.

Active/smart carboxymethyl cellulose‐polyvinyl alcohol composite films containing rose petal extract for fish packaging

SummaryIn this study, a film was developed for packaging fish that not only enhanced its shelf life but also was visually receptive to its spoilage. Rose petal extract (RPE) having excellent bioactivity was used as the functional component in carboxymethyl cellulose‐poly vinyl alcohol packaging film. Due to its high anthocyanin content, RPE could be used as a pH indicator, as its colour changed from bright red (pH 2) to yellow (pH 10). The developed film was used for packing Indian Mackerel and assessing its quality during chilled storage. Mackerel packed in neat film spoiled in 3 days while that in RPE containing films had shelf life of 12 days. Total bacterial count, pH, total volatile basic nitrogen and thiobarbituric acid reactive substance of fish in control were higher as compared to in RPE films. On spoilage RPE containing films showed visible colour response from red to green.

Health information, messaging and warnings on alcohol packaging: a focus group study with young adult drinkers in Scotland

Introduction Alcohol packaging can communicate alcohol-related health information, messaging and warnings. However, there is a dearth of research exploring awareness of, and engagement with, health information and messaging on alcohol packaging, and response to novel alcohol warnings. Methods Eight focus groups were conducted in Glasgow (Scotland) with current drinkers (n = 50), segmented by age (18–24, 25–35), gender (female, male) and social grade (ABC1, C2DE), to explore awareness and use of health information and messaging on existing packaging, and perceptions of novel front-of-package warnings differing in size (small, large), form (text-only, text and image) and message content (general, specific). Results Unaided recall of some health information and messaging was high (e.g. units, pregnancy symbols); however, most participants did not attend to or meaningfully engage with these, viewing them as unnoticeable, obscure and ineffective. Participants were skeptical of alcohol companies’ motivations with respect to health messaging on products. They were surprised to see the novel warnings on alcohol products but generally supported their inclusion. Most thought that these warnings could increase awareness of alcohol-related harms, particularly for younger or potential drinkers. Large, combined (text and image) warnings with specific messages on the front of packaging were considered most engaging and potentially effective. Conclusions The health-related information and messaging on alcohol packaging in Scotland is failing to inform consumers about the potential risks associated with alcohol use. Prominent warnings on alcohol packaging could help to capture attention, increase awareness of alcohol-related harms, and may support a reduction in consumption and alcohol-related harms.

Preparation and characterization of rice husk derived cellulose and polyvinyl alcohol blended heat sealable packaging film

A greener route for efficient extraction of chemically modified cellulose (CMC) from rice husk has been demonstrates. The extracted CMC is solution blended with polyvinyl alcohol (PVA) under optimized conditions to prepare CMC blended polyvinyl alcohol (CMC-b-PVA) packaging film. Further, the developed film has been characterized by Fourier transform infrared spectrophotometer, shore D, optical microscope, universal testing machine and soil burial test. The obtained results disclose the significant improvements in the mechanical properties by 1.49 times and reduced water vapor transmission rate by 33.33 % than PVA film due to reinforcement effect of CMC in PVA matrix. Furthermore, a heat sealed packet from the developed CMC-b-PVA film has been developed, which exhibits the comparable properties to commercially used flexible polyvinyl chloride films in packaging of edible packets along with optimized water barrier and biodegradable nature.

Comparison of physicochemical, mechanical and antioxidant properties of polyvinyl alcohol films containing green tealeaves waste extracts and discarded balsamic vinegar

Abstract Plant origin processed food wastes like tealeaves, coffee, fruit or wine pomace can be very rich in antioxidants and antiseptics. The goal of this work is to develop antioxidant polyvinyl alcohol (PVA) packaging films using wastes generated from used green tealeaves and discarded (quality control failed) balsamic vinegar and compare their properties. Both components were separately incorporated into PVA via simple one-pot fabrication approach. Formic acid was used to extract potential antioxidants from dried waste tealeaves, simultaneously dissolving PVA. Discarded vinegar was simply added to a water solution of PVA and in both cases antioxidant films were produced by solution casting and drying. PVA films were loaded up to 50 wt.% by both waste components allowing maximum utilization of useful organics from both discarded foodstuffs. Formic acid extracted gallated catechins with very high yields (>95 %) from tealeaves waste with excess amounts of epigallocatechin gallate (EGCG). Moreover, discarded balsamic vinegar was found to be an effective plasticizer for PVA with 150 % elongation levels. Tealeaves waste exhibited better inhibitory concentration levels (IC50; 73.1 μg/ml) than discarded balsamic vinegar (1846.7 μg/mL), comparable to synthetic commercial antioxidants. They also improved oxygen barrier properties of PVA, regardless of the solvent used. These films could be potentially suitable for antioxidant food packaging applications.

Pregnancy warning labels on alcohol packaging: results of an exploratory study

Abstract Background In 2017, approximately 11% of pregnant women in France consumed alcohol despite its harmful consequences on the fetus (Andler, 2018). Our research aims at exploring the impact of warnings displayed on alcohol packaging: the current pictogram and alternative possible messages that differ regarding content and design will be explored. Methods In-depth interviews were conducted with 20 French women, including women who did not drink alcohol during their pregnancy, women who drank alcohol, women in pregnancy planning and breastfeeding mothers. Questions were asked about the participants perception of drinking alcohol during pregnancy, alcohol warnings: the current pictogram, new contents (negative and positive) for warnings and new designs (different pictograms combined with or without text). A thematic content analysis was carried out. Results The current pictogram lacks visibility and has no impact on the behaviour of the women. New suggested contents were on the whole welcomed. It can be noted that some participants felt that specific messages (e.g. intellectual disabilities, facial malformations etc.) were a more effective way of preventing alcohol consumption during pregnancy than general ones. On the contrary, other participants felt that a general message such as ’Zero alcohol during pregnancy’, or positive messages such as a cessation service message, was more effective. The majority of participants believed that pictograms with a better visibility; more eye-catching; vivid images of fetuses, etc., would have a greater impact on alcohol consumption. Conclusions This study highlights the need for changes to pictogram currently used on alcohol packaging in France. Our results show that recent changes proposed by the French government (a slight increase in the size of the current pictogram) will most likely have little effect on preventing alcohol consumption during pregnancy. Key messages The current pictogram on alcohol bottles in France has little or no effect. The French government should implement new warnings both in terms of content and design.

Awareness of product-related information, health messages and warnings on alcohol packaging among adolescents: a cross-sectional survey in the United Kingdom.

BackgroundAlcohol packaging can be used to communicate product-related information, health messages and health warnings to consumers. We examined awareness and recall of such information and messaging among adolescents in the United Kingdom.MethodA cross-sectional survey was conducted with 11–19 year olds in the United Kingdom (n = 3399), with participants asked if they had seen any information, health messages or warnings on alcohol packaging in the past month (Yes/No) and, if so, what they recalled. We also assessed higher-risk drinking among current drinkers (≥5 Alcohol Use Disorders Identification Test-Consumption) and susceptibility to consume among never-drinkers.ResultsOne-third (32%) of participants had seen information, health messages or warnings on alcohol packaging. Chi-Square tests showed awareness was greater for current drinkers than non-drinkers (46% vs. 19%; P < 0.001), higher-risk drinkers than lower-risk drinkers (55% vs. 39%; P < 0.001), and susceptible never-drinkers than non-susceptible never-drinkers (21% vs. 16%; P = 0.01). Ten messages were recalled, with drinking responsibly (18%) and not drinking during pregnancy (13%) most recalled.ConclusionMost young drinkers, including almost half of higher-risk drinkers, did not recall seeing any information, health messages or warnings on alcohol packaging in the past month, suggesting that current labelling is failing to reach this key audience.

A Fully Transient Mechanical Energy Harvester

AbstractHere, a novel design of a mechanical energy harvester combining peak power output competitive with state‐of‐the‐art energy harvester devices is reported, but with a design enabling full transience, or dissolution, of the harvester after 30 min upon triggering in basic water. The harvester incorporates a symmetric cell combining LixAl alloy electrodes and polyvinyl alcohol packaging that harvests mechanical energy due to the mechanical–electrochemical stress coupling between the electrodes. Prototype harvester devices demonstrate peak output power of 0.208 µW cm−2 with continuous energy generation up to 1.76 µJ cm−2 at a mechanical input frequency of 0.1 Hz. This work introduces a new class of power systems simultaneously tailored for transience, high‐performance energy harvesting, and operation frequency relevant to wearable technologies.

Alcohol consumers\u2019 attention to warning labels and brand information on alcohol packaging: Findings from cross-sectional and experimental studies

BackgroundAlcohol warning labels have a limited effect on drinking behavior, potentially because people devote minimal attention to them. We report findings from two studies in which we measured the extent to which alcohol consumers attend to warning labels on alcohol packaging, and aimed to identify if increased attention to warning labels is associated with motivation to change drinking behavior.MethodsStudy 1 (N = 60) was an exploratory cross-sectional study in which we used eye-tracking to measure visual attention to brand and health information on alcohol and soda containers. In study 2 (N = 120) we manipulated motivation to reduce drinking using an alcohol brief intervention (vs control intervention) and measured heavy drinkers’ attention to branding and warning labels with the same eye-tracking paradigm as in study 1. Then, in a separate task we experimentally manipulated attention by drawing a brightly colored border around health (or brand) information before measuring participants’ self-reported drinking intentions for the subsequent week.ResultsStudy 1 showed that participants paid minimal attention to warning labels (7% of viewing time). Participants who were motivated to reduce drinking paid less attention to alcohol branding and alcohol warning labels. Results from study 2 showed that the alcohol brief intervention decreased attention to branding compared to the control condition, but it did not affect attention to warning labels. Furthermore, the experimental manipulation of attention to health or brand information did not influence drinking intentions for the subsequent week.ConclusionsAlcohol consumers allocate minimal attention to warning labels on alcohol packaging and even if their attention is directed to these warning labels, this has no impact on their drinking intentions. The lack of attention to warning labels, even among people who actively want to cut down, suggests that there is room for improvement in the content of health warnings on alcohol packaging.

Alcohol warning label perceptions: Emerging evidence for alcohol policy

Patterns of alcohol and cigarette use and abuse can be considered parallels due to their similar social, biological and epidemiological implications. Therefore, the cross-fertilization of policy research, including health warnings evidence, is justified. The objective of this study was to apply the lessons learned from the tobacco health warnings and plain packaging literature to an alcohol packaging study and test whether labelling alters consumer perceptions. Ninety-two adults were exposed to four labelling conditions of bottles for a famous brand of each of wine, beer and hard liquor. Participants were randomly assigned to one of four labelling conditions: standard, text warning, text and image warning, or text and image warning on a plain bottle. Participants then expressed their product-based (i.e., evaluation of the products) and consumer-based (i.e., evaluation of potential consumers of the products) perceptions in relation to each label condition and were asked to recognize the correct health warning. As expected, participants perceived bottles with warnings less positively as compared to standard bottles in terms of product-based and consumer-based perceptions: plain bottles showed the most consistent statistically significant results, followed by text and image warnings, and then text warnings in pair-wise comparisons with the standard bottles. Some support for the impact of plain packaging on warning recognition was also found. Unlike previous studies, this study reveals that health warnings, if similar to those on cigarette packs, can change consumer-based and product-based perceptions of alcohol products. The study reveals the importance of serious consideration of stringent alcohol warning policy research.

Young People, Alcohol Packaging and Digital Media

Background Alcohol marketing is a key focus for concern for alcohol and public health researchers because of growing evidence that it is a determinant of uptake and frequency of drinking. To date, research attention has focused on more traditional forms of marketing promotion. However, research needs to keep pace with the fast-changing, multi-platform marketing environment. Two aspects of contemporary alcohol marketing merit particular concern: packaging, and how this relates to online marketing. Methods Two qualitative methods were used. …