Muhamad Sharul Nizam Awang, Nurin Wahidah Mohd Zulkifli, Muhammad Mujtaba Abbas, Muhammad Syahir Amzar Zulkifli, Md Abul Kalam, Mohd Nur Ashraf Mohd Yusoff, Muhammad Hazwan Ahmad and Wan Mohd Ashri Wan Daud
The purpose of this paper was to investigate the lubricity of palm biodiesel (PB)–diesel fuel with plastic pyrolysis oil (PPO) and waste cooking biodiesel (WCB).
Abstract
Purpose
The purpose of this paper was to investigate the lubricity of palm biodiesel (PB)–diesel fuel with plastic pyrolysis oil (PPO) and waste cooking biodiesel (WCB).
Design/methodology/approach
Three quaternary fuels were prepared by mechanical stirring. B10 (10% PB in diesel) fuel was blended with 5%, 10% and 15% of both PPO and WCB. The results were compared to B30 (30% PB in diesel) and B10. The lubricity of fuel samples was determined using high-frequency reciprocating rig in accordance with ASTM D6079. The tribological behavior of all fuels was assessed by using scanning electron microscopy on worn steel plates to determine wear scar diameter (WSD) and surface morphology. The reported WSD is the average of the major and minor axis of the wear scar.
Findings
The addition of PPO and WCB to B10 had improved its lubricity while lowering wear and friction coefficients. Among the quaternary fuels, B40 showed the greatest reduction in coefficient of friction and WSD, with 7.63% and 44.5%, respectively, when compared to B10. When compared to B30a, the quaternary fuel mixes (B40, B30b and B20) exhibited significant reduction in WSD by 49.66%, 42.84% and 40.24%, respectively. Among the quaternary fuels, B40 exhibited the best overall lubricating performance, which was supported by surface morphology analysis. The evaluation of B40 indicated a reduced adhesive wear and tribo-oxidation, as well as a smoother metal surface, as compared to B20 and B30b.
Originality/value
Incorporation of PPO and WCB in PB–diesel blend as a quaternary fuel blend in diesel engines has not been reported. Only a few researchers looked into the impact of PPO and WCB on the lubricity of the fuel.
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Siti Nurunnajwa Shamsudin, Elistina Abu Bakar, Syuhaily Osman and Nuradli Ridzwan Shah Mohd Dali
This study aims to explore the factors influencing Muslim behavior toward halal nutraceutical products in Malaysia.
Abstract
Purpose
This study aims to explore the factors influencing Muslim behavior toward halal nutraceutical products in Malaysia.
Design/methodology/approach
This study used a quantitative survey approach to 400 Muslim respondents in Malaysia who have experience in consuming or purchasing nutraceutical products. The sampling technique used was multistage stratified sampling, and the data was analyzed using structural equation modeling.
Findings
This study revealed that perceived safety is the most influential factor contributing to Muslims’ behavior toward halal nutraceutical products in Malaysia, followed by Islamic values, trust, religiosity, maqasid al-Shariah and halal literacy.
Research limitations/implications
This study has only focused on halal nutraceutical products from the perspective of Muslim consumers in Malaysia.
Originality/value
This study contributes to understanding the factors that influence Muslim consumers’ behavior toward halal nutraceutical products by adopting the Social Cognitive Theory and Islamic Theory of Consumer Behavior.
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Adil Khan, Mohd Yasir Arafat and Mohammad Khalid Azam
This study aims to investigate the influence of religiosity (intrinsic and extrinsic) and halal literacy on the intention of Muslim consumers to purchase halal branded food…
Abstract
Purpose
This study aims to investigate the influence of religiosity (intrinsic and extrinsic) and halal literacy on the intention of Muslim consumers to purchase halal branded food products in India. An extended version of the theory of planned behaviour (TPB) was used as a framework. Apart from religiosity and halal literacy, the influence of attitude, social norms and perceived behavioural control of halal on buying intention were also tested.
Design/methodology/approach
The study uses a survey design. The data were collected from 350 individual respondents, using a closed-ended, structured questionnaire. The quality of the measurement model has been assessed through reliability testing, factor loading, average variance extracted and Fornell-Larcker criterion. The test of hypotheses was conducted by performing the partial least square structural equation modelling.
Findings
The result of hypotheses testing shows that both intrinsic and extrinsic types of religiosities did not have a direct influence on buying intention. However, religiosity (extrinsic and intrinsic) and halal literacy have significant relationships with most of the antecedents of the intention of the TPB. In addition, both kinds of religiosities (extrinsic and intrinsic) and halal literacy had a significant indirect effect (through TPB antecedents) on buying intention.
Originality/value
Muslim population in India is one of the largest in the world, yet there is a lack of popular halal branded food products in the market. Nevertheless, few researchers have attempted to study the consumer behaviour of the Muslim population for halal products in India. A large amount of research work on halal food behaviour is from countries such as Malaysia and Indonesia, where the Muslim population is in the majority and halal brands are already popular. Further, this paper studies the impact of dimensions of religiosity, which has been overlooked by researchers studying the halal food purchasing behaviour. The study also explores the impact of halal literacy, an understudied construct in halal marketing literature. The present study is amongst the earliest empirical research based on Muslim consumers in India on the topic of halal branded food products.
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Rana M. Zaki and Reham I. Elseidi
The aim of this research is to explore how religiosity (RG) could influence the Islamic apparel brand personality (IABP) dimensions, and to determine the degree to which IABP…
Abstract
Purpose
The aim of this research is to explore how religiosity (RG) could influence the Islamic apparel brand personality (IABP) dimensions, and to determine the degree to which IABP, attitude (ATT), subjective norms (SN) and purchase intention (PI) are influenced by RG. In addition, this research attempts to investigate the significant relationship between IABP and the components of the theory of planned behavior in the apparel industry in Egypt.
Design/methodology/approach
This research adopts a quantitative research method to provide insights relating to relationships between variables. The research data were collected through a conducted survey of Muslim females in Egypt. A convenience nonprobability sampling technique for data collection was used. To achieve the research purposes, confirmatory factor analyses, reliability and validity tests and structural equation modeling were adopted.
Findings
The research results show that RG has a positive significant relationship with ATT, SN and PI of Islamic apparel. Moreover, it was that only ATT has a positive significant influence over the PI of Islamic apparel unlike SN and Perceived behavioral control (PBC). Results also found that there is a positive relationship between IABP with ATT and SN. However, the relationship between RG and IABP was not statistically supported.
Practical implications
The research provides practical implications for brand managers, designers and producers in the Islamic apparel sector on how to increase PIs by extending IABP as well as for Egyptian policymakers. The practical implications include the possible approaches that stakeholders of Islamic apparel brands need to address while promoting, and this will influence marketing strategies in general and branding specifically.
Originality/value
This study extends our understanding of consumers’ Islamic apparel purchasing intentions using TPB to determine its rationale. Unlike other studies, this study operated RG and IABP to assess their influence on Islamic apparel PI in Egypt.