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1 – 10 of over 1000Evelyne Toe, Adjéhi Dadié, Etienne Dako, Guillaume Loukou, Marcelin Koffi Dje and Y.C. Blé
Vegetable salads, despite their recognized health benefits, are an increasingly common cause of foodborne illness worldwide. The purpose of this paper is to determine the…
Abstract
Purpose
Vegetable salads, despite their recognized health benefits, are an increasingly common cause of foodborne illness worldwide. The purpose of this paper is to determine the prevalence of E. coli with virulence genes in ready-to-eat raw mixed vegetable salads sold in collective catering in Abidjan.
Design/methodology/approach
A total of 436 strains of E. coli were isolated from 306 ready-to-eat raw mixed vegetables salads and then identified biochemically and molecularly based on the uidA gene responsible for beta-glucuronidase activity. The virulence genes were determined by polymerase chain reaction.
Findings
The prevalence in vegetable salads of E. coli with virulence genes was 35.3 percent. The distribution of pathovars was 21.2 percent enterotoxigenic (ETEC), 4.9 percent enteropathogenic (EPEC), 0.7 percent Shigatoxigenic (STEC), and 7.5 percent Enteroaggregative E. coli (EAEC). It appears from the study that vegetable salads sold in collective catering in Abidjan are at risk for contamination by E. coli pathovars.
Originality/value
Processing conditions for these salads during preparation appear to be hygienically insufficient, so measures to control the risk of contamination are necessary.
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Marieke Nijmeijer, Anthony Worsley and Brian Astill
A short questionnaire was completed by 276 South Australian consumers, which examined postulated relationships between personal values, food lifestyle, demographics and their…
Abstract
A short questionnaire was completed by 276 South Australian consumers, which examined postulated relationships between personal values, food lifestyle, demographics and their usual consumption of 24 vegetables. Principal components analyses showed that consumers' vegetable consumption could be divided into several categories, most notably salad and boiled vegetables. In multiple regression analyses different sets of values and lifestyle factors predicted intakes of overall vegetable (Rsq=27 per cent), salad (16 per cent) and boiled (27 per cent) vegetables. Path analysis revealed a complex set of pathways leading from values and personal demographics through motives, perceived food attributes and cooking skills to consumption. These partly confirmed the food lifestyle model proposed by Grunert et al. The findings show that vegetable consumption has a number of contextual and cognitive antecedents but strongly suggest that other likely predictive variables require investigation.
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Sana Ilyas, Muhammad Usman Qamar, Muhammad Hidayat Rasool, Nazia Abdulhaq and Zeeshan Nawaz
– The purpose of this paper is to evaluate the frequency and antimicrobial susceptibility pattern of pathogens present in ready-to-eat salads available at a local market.
Abstract
Purpose
The purpose of this paper is to evaluate the frequency and antimicrobial susceptibility pattern of pathogens present in ready-to-eat salads available at a local market.
Design/methodology/approach
A 100 salad samples were collected aseptically. Each sample (25 g) was homogenized in 225 ml of sterile peptone water and was serially diluted up to 1×106. Dilutions were inoculated on nutrient agar by surface spread plate technique. Aerobic colony count (ACC) was estimated by counting the colonies. Bacterial isolates were cultured on blood and MacConkey agar and identified on the basis of their morphology, culture characteristics and confirmed by API 20E and 20NE. Antimicrobial susceptibility was determined as per CLSI 2014.
Findings
ACC range was 1.1×103 cfu/g to 5.8×109 cfu/g. Among these the highest ACC was found in channa chat (4.9×104 to 5.8×109 cfu/g). A total of 127 microorganisms were identified; 73 were gram negative rods (GNRs) and 24 were gram positive cocci (GPC). Among GNRs; Klebsiella spp. (n=18) was the predominant whereas among GPC, Staphylococcus aureus (n=6) were the chief pathogen. Klebsiella spp. showed 100 percent resistance to ampicillin, 89-78 percent to amoxicillin/clavulanic acid and 33 percent to imipenem, however, Enterobacter spp. were resistant to ampicillin (100 percent) amoxicillin/clavulanic acid (77 percent) and imipenem (23 percent). Staphylococcus aureus showed resistance to co-amoxiclav (83 percent) and penicillin (75 percent).
Practical implications
This study revealed that effective control measures must been implemented and respected by throughout the entire food chain and better surveillance studies should be performed at national level to reduce the spread of bacteria by fresh salads.
Originality/value
This paper explore the high prevalence of multidrug-resistant pathogens in different salads and most of the salads were found to be unhygienic for consumption.
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Terhi Junkkari, Maija Kantola, Leena Arjanne, Harri Luomala and Anu Hopia
This study aims to increase knowledge of the ability of nutrition labels to guide consumer choices in real-life environments.
Abstract
Purpose
This study aims to increase knowledge of the ability of nutrition labels to guide consumer choices in real-life environments.
Design/methodology/approach
Food consumption and plate waste data were collected from two self-service restaurants (SSR) with different customer groups over six observation days: three control and three intervention (with nutrition labelling) periods. Study Group 1 consisted of vocational school students, mostly late adolescents (N = 1,710), and Group 2 consisted of spa hotel customers, mostly elderly (N = 1,807). In the experimental restaurants, the same food was served to the buffets during the control and intervention periods.
Findings
The nutrition label in the lunch buffet guides customers to eat fewer main foods and salads and to select healthier choices. Increased consumption of taste enhancers (salt and ketchup) was observed in the study restaurants after nutritional labelling. Nutrition labelling was associated with a reduction in plate waste among the elderly, whereas the opposite was observed among adolescents.
Originality/value
The results provide public policymakers and marketers with a better understanding of the effects of nutrition labelling on consumer behaviour. Future studies should further evaluate the effects of nutrition labelling on the overall quality of customer diets and the complex environmental, social, and psychological factors affecting food choices and plate waste accumulation in various study groups.
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This case is about Korean Air Lines’ innovative idea to adopt a policy of vertical integration in catering. Rather than out‐source its in‐flight catering, this airline has moved…
Abstract
This case is about Korean Air Lines’ innovative idea to adopt a policy of vertical integration in catering. Rather than out‐source its in‐flight catering, this airline has moved away from industry norms, and is doing its own thing – literally.
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David Marshall, Annie S. Anderson, Mike Lean and Ann Foster
Scotland has a poor diet‐related health record and part of the drive toimprove Scottish diet has focused attention on increasing fruit andvegetable consumption. Despite various…
Abstract
Scotland has a poor diet‐related health record and part of the drive to improve Scottish diet has focused attention on increasing fruit and vegetable consumption. Despite various attempts, consumption remains well below World Health Organisation (WHO) recommendations. Consumer confusion and complacency towards diet are apparent and the relationship between knowledge about good diet and behaviour is unclear. Highlights the need to consider how consumers make choices. Diet and health are not regarded as a problem for the majority of Scots but the major barriers to increasing consumption of fruit and vegetables reflect the additional costs incurred and the somewhat limited role for these products in Scottish cuisine. Indicates that price incentives and emphasis on the healthy benefits of eating more fruit and vegetables appear to be the most likely to succeed in increasing consumption; but there appear to be more opportunities to increase fruit as opposed to vegetable consumption.
Opens by identifying fruit and vegetable consumption differencesbetween socio‐economic groups in Britain. Goes on to outline currentunderstanding of antioxidants and the role they…
Abstract
Opens by identifying fruit and vegetable consumption differences between socio‐economic groups in Britain. Goes on to outline current understanding of antioxidants and the role they have in preventing or stemming disease processes. Explores factors which determine consumption of fruit and vegetables across all social groups, before considering in detail the impact of inadequate income. Considers the relationship between smoking, low income and fruit and vegetable consumption and notes that despite increased antioxidant requirements smokers on low income exhibit lower levels of consumption. Rejects the notion that such purchasing patterns are irrational in the circumstances and concludes that a national healthy diet policy, particularly one which increases the consumption of fruit and vegetables, cannot be dissociated from social protection.
Jean Kennedy, Sarah Gibney, Aisling Nolan, Stephen O'Brien, M. Ann S. McMahon, David McDowell, Seamus Fanning and Patrick G. Wall
The International Scientific Forum on Home Hygiene's (IFH) approach to infectious disease prevention is “targeted hygiene”, which means identifying the routes of transmission of…
Abstract
Purpose
The International Scientific Forum on Home Hygiene's (IFH) approach to infectious disease prevention is “targeted hygiene”, which means identifying the routes of transmission of infection in the home and community, and targeting hygiene measures at “critical points” (CPs) to break the chain of transmission. This paper aims to identify and prioritise CPs in the home kitchen environment during food preparation in order to inform food safety campaigns.
Design/methodology/approach
This study involved: filming participants (n=60) while they prepared a meal according to a specified recipe (30 beef/salad burgers and 30 chicken salads); swabbing key potential contamination sites in the participant's kitchen for microbiological testing; sampling the meat and salad components of the cooked meal for microbiological testing; visual inspection and temperature check of the meat after cooking; and administering a survey of knowledge, attitudes and demographic factors.
Findings
This study has identified the critical points (CPs) during domestic food preparation as: CP1: correct cooking practices; CP2: prevention of cross‐contamination; and CP3: correct food storage practices. Statistically significant links were found between food safety knowledge and behaviour as well as between food safety attitudes and demographic factors.
Originality/value
This is the first study to link all aspects of observed consumer food safety practices in the home to food safety knowledge, attitudes, perceptions, psychosocial and demographic factors to identify these CPs.
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Umezuruike Linus Opara and Majeed R. Al‐Ani
The purpose of this paper is to evaluate the difference in antioxidant contents of pre‐packed fresh‐cut and whole fruit and vegetables as sold in the market.
Abstract
Purpose
The purpose of this paper is to evaluate the difference in antioxidant contents of pre‐packed fresh‐cut and whole fruit and vegetables as sold in the market.
Design/methodology/approach
Samples of pre‐packed fresh‐cut fruit and vegetables as well as whole produce were collected from the market in Muscat and Oman, and analyzed for vitamin C, lycopene and total carotenoids. Analysis of variance was carried out to determine the level of statistical differences between fresh‐cut and whole fruit and vegetables.
Findings
In both fruit and vegetables, vitamin C contents are higher in whole than fresh‐cut produce, with greater reductions in vitamin C contents of fresh‐cut vegetables than fruit. In both fresh‐cut and whole fruit, lycopene content is 30‐36 times higher in watermelon than the contents of other fruit genotypes studied. Similarly, total carotenoids content of watermelon is six to 21 times higher than other types of fruit studied. Both lycopene and total carotenoids content are higher in whole than fresh‐cut fruit, except in pineapple fruit. In both fresh‐cut and whole vegetables, lycopene content of carrot is three to four times higher than cucumber, and four to six times higher than celery. Implications of these results on public health policy are discussed.
Originality/value
Previous studies on quality of fresh‐cut produce are based on controlled experimental studies using samples of produce from the same batch to compare fresh‐cut versus whole produce. However, consumers in retails stores often have to make a choice between pre‐packed fresh‐cut or whole (un‐cut) produce, which are not usually from the same source or batch. It is therefore essential to understand the differences in nutritional value of whole and pre‐packed fresh‐cuts sold in the market.
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Irene A. Baxter and Monika J.A. Schroder
Discusses the factors shaping Scottish children’s perceptions of vegetables as a means of explaining their low vegetable consumption. Examines the impact that sensory factors, the…
Abstract
Discusses the factors shaping Scottish children’s perceptions of vegetables as a means of explaining their low vegetable consumption. Examines the impact that sensory factors, the child’s family and eating experiences, and environmental factors (i.e. socio‐economic factors/income, culture, eating patterns and advertising) have on children’s vegetable consumption. Additionally, makes suggestions for strategies to overcome some of these factors which affect children’s low consumption of vegetables.
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