Frying oils quality control: necessity for new approach of supervision

2018 ◽  
Vol 120 (2) ◽  
pp. 490-498 ◽  
Author(s):  
Ebrahim Ahmadi ◽  
Mohammad Mosaferi ◽  
Leila Nikniaz ◽  
Jafar Sadegh Tabrizi ◽  
Mohammad Asghari Jafarabadi ◽  
...  
Keyword(s):  
Fast Food ◽  
Edible Oils ◽  
Standard Procedure ◽  
Frying Oil ◽  
National Standard ◽  
Frying Oils ◽  
New Approach ◽  
Content Type ◽  
Cooking Oil

Purpose The purpose of this paper is to investigate the quality of the frying oil used in restaurants, fast food establishments, and confectionary stores. The compliance of used frying oils with the quality standards as determined by the peroxide value (PV) and the total polar materials (TPMs) is investigated by analyzing 375 samples of oil. Design/methodology/approach The PV was measured according to the national standard procedure number 4179, while the TPM was determined using a Testo 270 cooking oil tester. Frying oils with a PV>5 mEq/kg and a TPM>25 percent were considered to be non-edible. For a comparison of groups, the Mann-Whitney and Spearman correlation tests were used, and p<0.05 was considered significant. Findings The maximum TPM and PV recorded for frying oils in fast food restaurants were 97.5 percent and 77.9 mEq/kg, respectively. The results also revealed that 60 percent of samples were non-edible according to the TPM, while 58.9 percent of the oil samples were non-edible because of the PV. TPM and PV correlated well with each other (r=0.99, p<0.001) and with oil replacement intervals (r=0.90, p<0.001). The relationship between the TPM and PV was stronger in the polynomial model than the linear model. The following equation was obtained: peroxide (mEq/kg oil)=0.0043 TPM2 (%)+0.1587 TPM (%)–0.6152. Originality/value Considering the current limitations in official supervision by health authority, on-site self-monitoring of the TPM using the Testo 270 cooking oil tester by sellers as a solution seems a new approach. Food stores, restaurants, and confectionary stores should be equipped with TPM analyzers to determine the quality of the frying oil and the timely replacement of non-edible oils.

Local institutions in Peru and the presence and number of fast-food outlets

2017 ◽  
Vol 15 (3) ◽  
pp. 338-376
Author(s):  
Esteban Colla-De-Robertis ◽  
Sandro Navarro Castañeda
Keyword(s):  
Principal Component Analysis ◽  
Urban Development ◽  
Fast Food ◽  
Institutional Quality ◽  
Principal Component ◽  
Local Institutions ◽  
Urban District ◽  
Content Type ◽  
Food Outlets

Purpose The paper aims to study the role of local institutions in the establishment of fast-food outlets in urban districts of Peru. In most urban districts, there are no fast-food outlets. The authors, therefore, study the effect of institutional quality on the presence or absence of these outlets and the number of outlets if these are present. Design/methodology/approach The theoretical framework in which this paper is based on is the theory of agglomeration, which establishes that firms benefit from being close to each other. In particular, the paper builds on a model of market entry and competition in geographically independent local markets. An explicit expression was found for the equilibrium number of outlets (including zero) as a function of exogenous determinants of the demand for fast-food in each market, available infrastructure and institutional quality of the district’s government. Principal component analysis was used to construct measures of institutional quality based on administrative and organizational characteristics of district’s municipalities. These measures were incorporated as explanatory variables in a zero-inflated Poisson model, which is appropriate to handle count data and to accommodate excess zeros and which also allows the specification of different models for the zero part and the positive part. Findings Institutional quality mainly affects the presence of fast-food outlets in a district. The quality of urban development management and use of information systems are relevant. An institutional variable particularly relevant in explaining the number of outlets is the presence of an investment programming office in the municipality. The authors confirm the general hypothesis of the paper: institutions have a role in explaining both the presence and number of fast-food outlets in a district. Overall, the results of this paper suggest that institutional quality of a municipal district is related to better infrastructure, which lowers the costs of establishing outlets. Research limitations/implications Limitations in the availability of data at the regional and urban district level did not allow the authors to analyze other factors that affect entry decisions in the fast-food industry in Peru, such as controls to prevent corruption, legal uncertainty or crime. Another limitation was the lack of data on entry costs for each franchisee in each urban district. This forced the authors to use public infrastructure characteristics of the district as (imperfect) proxies of the entry costs. Practical implications The instruments of urban development management and information systems can be effective at attracting investment to a district. These tools operate partly through an indirect effect, namely, the improvement of district infrastructure, which is necessary to reduce the costs of establishing companies. There is also synergy between national government’s programs to attract investment and the good institutional quality in local governments. On the contrary, poor local institutions can be an obstacle to the successful implementation of those national programs. Social implications Foreign direct investment has a positive impact on the economic development of a country through knowledge spillovers. Therefore, any administrative reform to make local government practices more efficient can have an indirect impact on development. Originality/value Principal component analysis is a statistical tool that can be important in building good measures of institutional quality by allowing the combination of different observable characteristics into one component that can be interpreted as an operational restriction. The count model allows the use of the primary, easily observable, dependent variable, namely, the number of outlets. Finally, the two-part model makes it possible to discern the effect of institutional quality on the presence or absence of outlets and the number of outlets if these are present.

scholarly journals Staff perceptions of positive behavioural support in a secure forensic adult mental health setting

2018 ◽  
Vol 20 (1) ◽  
pp. 42-53 ◽  
Author(s):  
Graeme Karger ◽  
Bronwen Davies ◽  
Rosemary Jenkins ◽  
Victoria Samuel
Keyword(s):  
Mental Health ◽  
Forensic Mental Health ◽  
Mental Health Setting ◽  
Risky Behaviour ◽  
Staff Perceptions ◽  
New Approach ◽  
Content Type ◽  
Training Support ◽  
Behavioural Support

Purpose Challenging behaviour has been a concern across forensic services. Traditionally these have been managed reactively using medication, seclusion and restraint; however, there is growing evidence that these approaches are ineffective and counter-therapeutic. A number of reports have recommended the use of preventative approaches such as positive behavioural support (PBS). The purpose of this paper is to identify “how staff within a secure forensic mental health setting perceived the application of PBS?” Design/methodology/approach In total, 11 multi-disciplinary staff were interviewed and thematic analysis was used to identify themes. Findings Five themes were identified: “The Functions”, “Appraising a new Approach”, “Collaborative Challenges”, “Staff Variables” and “Organisational Issues”. Practical implications PBS enables staff to understand challenging or risky behaviour. It empowers patients via collaboration, although there can be some challenges to this. Services need to invest in training, support and leadership to ensure the model is embed and promote fidelity. Consideration needs to be given to how quality of life can be improved within the limits of a forensic setting. Originality/value No previous studies asking staff about their experiences of PBS within a forensic mental health context.

A self-testing cloud model for multi-criteria group decision making

2016 ◽  
Vol 33 (6) ◽  
pp. 1767-1783 ◽  
Author(s):  
Ting-Cheng Chang ◽  
Hui Wang
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Cloud Model ◽  
New Approach ◽  
Content Type ◽  
Qualitative And Quantitative ◽  
Composite Scale ◽  
Self Testing

Purpose – The purpose of this paper is to select the best scaling coefficient during the quantitative-qualitative conversion. Design/methodology/approach – Cloud model can describe the qualitative concept of randomness and fuzziness, achieve uncertain transition between qualitative and quantitative in the field of multi-criteria group decision and has been receiving widespread attention. This paper discusses scale conversion issues of the cloud model when evaluating qualitative information. In order to improve the accuracy of the evaluation on multi-attribute decision problems based on uncertainty of natural linguistic information, this paper proposes a method of self-testing cloud model based on a composite scale (with the exponential scale and the scale as a basis). Findings – Through experimental verification results show that under composite scale, the best suitable selection of can effectively improve the accuracy and reliability of decision results. Originality/value – This research presents a new approach to determine the suitable value for coefficient based on uncertain knowledge of natural multi-criteria group decision making, and gives concrete steps and examples. This method has positive significance to improve the quality of qualitative and quantitative conversion based on cloud model.

Biodegradable lubricating greases containing used frying oil as additives

2015 ◽  
Vol 67 (4) ◽  
pp. 315-319 ◽  
Author(s):  
Bronislaw Buczek ◽  
Anna Zajezierska
Keyword(s):  
Fast Food ◽  
Production Equipment ◽  
Frying Oil ◽  
Used Frying Oil ◽  
Content Type ◽  
Base Oil ◽  
Used Oil ◽  
Research Concept ◽  
Fast Food Restaurants ◽  
Railway Engineering

Purpose – The aim of this paper was to investigate the possibility of reusing frying oil, obtained during thermal treatment of food in fast-food restaurants for production of plastic greases. Design/methodology/approach – In accordance with the proposed research concept, the used frying oil was to be the base oil of biodegradable plastic greases thickened with calcium 12-hydroxystearate and lithium 12-hydroxystearate. These studies included the determination of the effect of variable amounts of used oil component in the base oil on the properties of the resultant plastic greases. Findings – It was found that the optimum amount of the component in the base oil is 10-15 per cent. Calcium and lithium greases prepared in such a way possess a quality to that of greases prepared with fresh rapeseed oil. Research limitations/implications – Higher concentrations of used frying oil in the base oil adversely affect the degree of thickening, thixotropic properties and dropping point of the grease, as well as, creating technological problems. Practical implications – The investigations, beside their research goals have also a practical character – recycling waste material in place of its present method of disposal. Originality/value – One of the least expensive material, and most commonly used to produce biodegradable lubricants are vegetable oils. In recent years, besides introducing biodegradable lubricating oils, increasing interest is observed in the use of plastic greases of high biodegradability. Now, it is possible to obtain such greases with additive of used frying oils. Biodegradable greases are used as lubrication of open gear, food production equipment, central lubrication system in cars and railway engineering.

scholarly journals Penggunaan H-Zeolit dan Tawas dalam Pemurnian Crude Glycerol dengan Proses Adsorpsi dan Koagulasi

2017 ◽  
Vol 3 (1) ◽  
pp. 35-43
Author(s):  
Isalmi Aziz ◽  
Nur Hijjah Bayani Fadhilah ◽  
Hendrawati Hendrawati
Keyword(s):  
Fatty Acids ◽  
Phosphoric Acid ◽  
Crude Glycerol ◽  
Ash Content ◽  
National Standard ◽  
Aluminium Content ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Coagulation Process

Production of biodiesel from used cooking oil byproducts such as crude glycerol with low purity. The crude glycerol containing compounds impurities such as free fatty acids, alcohol, soap, catalyst and water. Compound adsorption of impurities can be done with the H-zeolite as adsorbent, but the resulting quality is still not good. To improve its quality, this research was added alum (coagulation) process so that the adsorption of colloidal-sized compound impurities which can be separated from the glycerol. The purpose of this research is determine optimal condition of adsorption and coagulation impurity compounds of crude glycerol by using H-zeolite and  alum and  also determine quality of glycerol  was obtained. First, crude glycerol acidified by phosphoric acid 85% (pure analysis) until desired pH ±2.5. It was obtained purity of glycerol 72.797%. The next process is adsorption with activated H-zeolite and it obtained purity of glycerol 77.079%. The last process in this research is adsorption and coagulation by using H-zeolite and alum. The highest purity glycerol 93.803% was obtained from condition of adsorption and coagulation for 75 minutes; alum’s concentration 80 ppm; and temperature 60 ºC. The glycerol discharged from adsorption and coagulation process by using H-zeolite and alum is qualify Indonesia National Standard number 06-1564-1995 with 3.512% water content; 2.438% ash content; 0.247% MONG content; has no sugar; 1.259 g/mL density of glycerol; 0.2356% potassium content and 0.0410% aluminium content; and brighter color.DOI: http://dx.doi.org/10.15408/jkv.v0i0.5143

Safety Factors of Oils Marketed in Iran and Applicable Strategies in Control of Food Derived Cardiovascular Diseases

2020 ◽  
Vol 16 (4) ◽  
pp. 571-577
Author(s):  
Ali Jamali ◽  
Masoumeh Moslemi ◽  
Naeimeh Akramzadeh ◽  
Amin M. Khaneghah ◽  
Manouchehr Dadgarnejad
Keyword(s):  
Palm Oil ◽  
Edible Oils ◽  
Communicable Disease ◽  
Saturated Fatty Acids ◽  
The Body ◽  
Frying Oil ◽  
Local Market ◽  
Frying Oils ◽  
Rancimat Method ◽  
The Stability

Background: The proposed criteria for a healthy daily diet play a drastic role in the prevention of non-communicable disease. Several cases of acute and chronic diseases occurred due to the presence of toxic and unsafe agents in the body. Trans and some saturated fatty acids as an example of these unfavorable components, could pose some dangerous effects on human health such as cardiovascular disease. Objective: In the current study, health criteria were undertaken to evaluate the safety of collected edible oils samples from Iranian market, and then some of the approaches for elimination and control of arisen health concerns were discussed. Methods: Totally 18 edible oil samples including cooking oil (n=5), frying oil (n=9) and table margarine (n=4) were collected from Tehran local market and were analyzed in 2016. The fatty acid profile was determined by using gas chromatography equipped with a flame ionization detector. Furthermore, the stability of frying oil was also measured by the Rancimat method. Results: All samples contained the trans and saturated fats in concentrations lower than the maximum recommended values (1%, 2% and 4% of trans for cooking oils, frying oils and table margarines, and 30% and 48% of saturation in frying oils and table margarines, respectively). The frying oils demonstrated the desired stability against high temperatures. Optimization of stability was done mainly by the addition of palm oil to the formula in the past. However, based on the fact of the high saturation of palm oil and its carcinogenicity under uncontrolled consumption, a risk assessment conducted in Iran led to the limited import of palm oil. This approach resulted in the production of healthier alternatives in the country. Conclusion: The usage of applicable approaches such as inter-esterification, fractionation and blending by more stable oils fractions is suggested to achieve healthier products.

Polarized words: discourse on the boycott of Israel, social justice and conflict resolution

2017 ◽  
Vol 28 (3) ◽  
pp. 270-294 ◽  
Author(s):  
Julia Chaitin ◽  
Shoshana Steinberg ◽  
Sharon Steinberg
Keyword(s):  
Social Justice ◽  
Conflict Resolution ◽  
Ethnic Origin ◽  
New Approach ◽  
Content Type ◽  
Different Types ◽  
Youtube Videos ◽  
Practical Implications ◽  
Insight Into

Purpose The study aimed to investigate how Israelis and Palestinians, Jews and others from around the world present their views on boycott, divestment and sanctions (BDS) and the Palestinian Academic and Cultural Boycott of Israel (PACBI). The quality of discourse was examined along with the implications of the rhetoric for social-justice and conflict resolution frameworks. Design/methodology/approach This qualitative study analyzed 257 texts (newspaper articles, opinion pieces, YouTube videos, emails. Facebook posts, Twitter tweets, campaigns and websites) for content and quality of discourse and for their implications for social-justice and conflict resolution work. Findings Most texts divided into those in favor of the boycott and those opposed. The content was also polarized − most pro-BDS texts saw Israel as a settler-colonial enterprise, and emphasized issues of social-justice, whereas opponents perceived Israel as a legitimate nation and were skeptical of the human rights angle. The main types of discourse discerned included: ethnocentric talk, attack and intellectual discussion, regardless of national/ethnic origin of the writer or stance toward the boycott. Research limitations/implications Different types of texts were analyzed, which did not always fit easily into the discourse categories. Because this was the first study of its kind and looked at limited years, results should be approached with this in mind. Practical implications The rhetoric leaves little place for dialogue between those in favor and those opposed. Specific suggestions for combining social-justice work and conflict resolution work are offered. Social implications BDS discourse in its present form hampers finding a solution to the conflict and abuse of Palestinian rights. A new approach is needed to try to resolve these issues. Originality/value Because there are few systematic studies on BDS, this article provides insight into how people discuss the strategy and how it connects to frameworks for resolving conflicts.

How to use spontaneous customer comments to identify nonlinear background of satisfaction with restaurant services

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gerson Tontini ◽  
Luís Irgang ◽  
Adriana Kroenke ◽  
Ivan Hadlich ◽  
Jaime Dagostim Picolo ◽  
...  
Keyword(s):  
Customer Satisfaction ◽  
Fast Food ◽  
Critical Incident ◽  
The Internet ◽  
Negative Experiences ◽  
Content Type ◽  
Negative Comments ◽  
Contrast Analysis ◽  
A Chain

PurposeThe purpose of this study is to demonstrate how to use customer spontaneous comments to identify which aspects influence the overall customer satisfaction with restaurant services from a nonlinear perspective.Design/methodology/approachThe authors collected data from 399 spontaneous comments about a chain of fast-food restaurants in Brazil. The comments are freely available on the TripAdvisor portal and were extracted and classified according to seven dimensions related to the quality of services: tangibles, reliability, responsiveness, assurance, empathy, quality of the food and price. Next, the authors combine the critical incident technique (CIT) and the penalty-reward contrast analysis (PRCA) to investigate the nonlinear relationship between service quality assessment and overall customer satisfaction.FindingsThe method of integrating CIT with PRCA explains 64.7% of the variation in the customer's assessment of the services provided (RAdj2 = 0.647). This shows that spontaneous comments from customers are related to their overall satisfaction with the service provided. Besides, the findings suggest that consumers tend to comment more about positive than negative experiences regarding aspects related to food, attendants' empathy and service assurance, and more negative comments about aspects related to responsiveness and price. However, it was found that negative comments have a stronger influence on overall satisfaction than positive comments.Originality/valueUsing comments available for free on the Internet and evaluating how positive and negative comments can jointly influence customer satisfaction, the proposed methodology demonstrates how restaurants can use their customers' spontaneous comments to identify critical aspects to be managed and improved. To the best of authors’ knowledge, this is the first study presenting how restaurants can use customer spontaneous comments, freely available on the internet, to identify the relevance of different aspects of the services provided from a nonlinear perspective. In addition, the present study shows that although customers spontaneously tend to share more positive than negative comments about restaurant services, events related to negative experiences have a stronger influence on overall satisfaction.

scholarly journals Nutritional composition of takeaway food in the UK

2014 ◽  
Vol 44 (5) ◽  
pp. 414-430 ◽  
Author(s):  
Agnieszka Jaworowska ◽  
Toni M. Blackham ◽  
Rachel Long ◽  
Catherine Taylor ◽  
Matthew Ashton ◽  
...  
Keyword(s):  
Fast Food ◽  
Energy Content ◽  
Portion Size ◽  
Future Research ◽  
Total Sugars ◽  
Content Type ◽  
Nutritional Profile ◽  
Total Fat ◽  
The Uk

Purpose – This paper aims to determine the nutritional profile of popular takeaway meals in the UK. Fast food has a poor nutritional profile; research has focused on the major catering chains, with limited data on takeaway food from independent establishments. Design/methodology/approach – Random samples of takeaway meals were purchased from small, independent takeaway establishments. Multiple samples of 27 different takeaway meals, from Indian, Chinese, kebab, pizza and English-style establishments (n = 489), were analysed for portion size, energy, protein, carbohydrate, total fat, salt and total sugars. Findings – Takeaway meals were inconsistent with UK dietary recommendations; pizzas revealed the highest energy content, and Chinese meals were lowest in total fat. However, there was a high degree of variability between and within categories, but the majority of meals were excessive for portion size, energy, macronutrients and salt. Research limitations/implications – The present study focused on energy, macronutrients, salt and total sugars. Future research should analyse the quality of fat and carbohydrates and micronutrients to provide a more detailed nutritional profile of takeaway food. Practical implications – The nutritional variability between establishments suggests that recipe reformulation should be explored in an attempt to improve the nutritional quality of takeaway foods. In addition, portion size reduction could favour both the consumer and the industry. Social implications – Takeaway outlets do not provide nutritional information; due to the excessive nutritional profiles, regular intake may increase the risk of non-communicable disease. Therefore, there is a pressing need for this provision to help consumers make conscious food choices. Originality/value – This is the first study to analyse energy and macronutrient content of independent takeaway meals in the UK.

Trust evaluation between users of social networks using the quality of service requirements and call log histories

Kybernetes ◽  
2016 ◽  
Vol 45 (10) ◽  
pp. 1505-1523 ◽  
Author(s):  
Parina Alamir ◽  
Nima Jafari Navimipour
Keyword(s):  
Social Networks ◽  
Quality Of Service ◽  
Design Methodology ◽  
Main Concern ◽  
Trust Evaluation ◽  
Social Networking Services ◽  
New Approach ◽  
Content Type ◽  
Trust Value

Purpose As social networking services are popular, the need for recognizing reliable people has become the main concern. Quantifying the relationships between the users of social networks is also one of the important challenges with the increasing number of users. So, trust plays an important role in social networks in order to recognize trustworthy people. The purpose of this paper is to propose an approach to recognize trustworthy users and protect users from abuse by untrustable users. Design/methodology/approach In this paper, the authors suggest a method to measure the trust value between users of social networks based on call log histories such as abundance, novelty, and sincerity and quality of service (QoS) requirements such as accessibility, response ability, tend to respond, and agility. After that, the authors calculate error-hit, precision, and recall to evaluate the trust value. Findings The results indicate that the proposed approach has better performance in terms of error-hit, precision, and recall than FIFO, combined, QoS-based, and call log-based method. Originality/value In this paper, the trust issue in social networks is pointed out and a new approach to evaluate the trust value is proposed based on call log histories and QoS requirements.

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