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Article
Publication date: 21 March 2024

Ahmad Hadipour, Zahra Mahmoudi, Saeed Manoochehri, Heshmatollah Ebrahimi-Najafabadi and Zahra Hesari

Particles are of the controlled release delivery systems. Also, topically applied olive oil has a protective effect against ultraviolet B (UVB) exposure. Due to its sensitivity to…

Abstract

Purpose

Particles are of the controlled release delivery systems. Also, topically applied olive oil has a protective effect against ultraviolet B (UVB) exposure. Due to its sensitivity to oxidation, various studies have investigated the production of olive oil particles. The purpose of this study was to use chitosan and sodium alginate as the vehicle polymers for olive oil.

Design/methodology/approach

The gelation method used to prepare the sodium alginate miliparticles containing olive oil and particles were coated with chitosan. Morphology and size, zeta potential, infrared spectrum of olive oil miliparticles, encapsulation efficiency and oil release profile were investigated. Among 12 primary fabricated formulations, formulations F5 (olive oil loaded alginate miliparticles) and F11 (olive oil loaded alginate miliparticles + chitosan coat) were selected for further evaluations.

Findings

The size of the miliparticles was in the range of 1,100–1,600 µm. Particles had a spherical appearance, and chitosan coat made a smoother surface according to the scanning electron microscopy. The zeta potential of miliparticles were −30 mV for F5 and +2.7 mV for F11. Fourier transform infrared analysis showed that there was no interaction between olive oil and other excipients. Encapsulation efficiency showed the highest value of 85% in 1:4 (olive oil:alginate solution) miliparticles in F11. Release study indicated a maximum release of 68.22% for F5 and 60.68% for F11 in 24 h (p-value < 0.016). Therefore, coating with chitosan had a marked effect on slowing the release of olive oil. These results indicated that olive oil in various amounts can be successfully encapsulated into the sodium-alginate capsules cross-linked with glutaraldehyde.

Originality/value

To the best of the authors’ knowledge, no study has used chitosan and sodium alginate as the vehicle polymers for microencapsulation of olive oil.

Details

Nutrition & Food Science , vol. 54 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 8 January 2024

Amrollah Shamsi, Ting Wang, Narayanaswamy Vasantha Raju, Arezoo Ghamgosar, Golbarg Mahdizadeh Davani and Mohammad Javad Mansourzadeh

By distorting the peer review process, predatory journals lure researchers and collect article processing charges (APCs) to earn income, thereby threatening clinical decisions…

114

Abstract

Purpose

By distorting the peer review process, predatory journals lure researchers and collect article processing charges (APCs) to earn income, thereby threatening clinical decisions. This study aims to identifying the characteristics of predatory publishing in the dermatology literature.

Design/methodology/approach

The authors used Kscien's list to detect dermatology-related predatory journals. Bibliometric parameters were analyzed at the level of journals, publishers, documents and authors.

Findings

Sixty-one potential predatory dermatology publishers published 4,164 articles in 57 journals from 2000 to 2020, with most publishers claiming to be located in the United States. Most journals were 1–5 years old. Six journals were indexed in PubMed, two in Scopus and 43 in Google Scholar (GS). The average APC was 1,049 USD. Skin, patient, cutaneous, psoriasis, dermatitis and acne were the most frequently used keywords in the article's title. A total of 1,146 articles in GS received 4,725 citations. More than half of the journals had <10 citations. Also, 318 articles in Web of Science were contaminated by the most cited articles and 4.49% of the articles had reported their funding source. The average number of authors per article was 3.7. India, the United States and Japan had the most articles from 119 involved countries. Asia, Europe and North America had the most contributed authors; 5.2% of articles were written through international collaboration. A majority of authors were from high- and low-middle-income countries. Women contributed 43.57% and 39.66% as the first and corresponding authors, respectively.

Research limitations/implications

The study had limitations, including heavy reliance on Kscien's list, potential for human error in manual data extraction and nonseparation of types of articles. Journals that only published dermatology articles were reviewed, so those occasionally publishing dermatology articles were missed. Predatory journals covering multiple subjects (Petrisor, 2016) may have resulted in overlooking some dermatology papers. This study did not claim to have covered all articles in predatory dermatology journals (PDJs) but evaluated many of them. The authors accept the claim that Kscien's list may have made a mistake in including journals.

Originality/value

The wide dispersion of authors involved in PDJs highlights the need to increase awareness among these authors.

Details

Online Information Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1468-4527

Keywords

Article
Publication date: 1 September 2023

Mohamed Salaheldeen and Mohamed Battour

This study aims to conceptualize and investigate the relationships between halal entrepreneurial success, innovation capability and sustainable innovation in the halal industry.

Abstract

Purpose

This study aims to conceptualize and investigate the relationships between halal entrepreneurial success, innovation capability and sustainable innovation in the halal industry.

Design/methodology/approach

Both integrative and generative approaches are combined to move forward from the literature to a theoretical contribution. The paper presents a model that relates halal entrepreneurial success to innovation capability and sustainable innovation. A purposive sample of 340 Malaysian halal entrepreneurs is used to test the conceptualized model. The partial least square technique was then used to assess the structural model.

Findings

The results disclosed that halal entrepreneurial success is positively related to both innovation capability and sustainable innovation. Also, the innovation capability mediates the relationship between halal entrepreneurial success and sustainable innovation.

Originality/value

This research conceptualized and examined a novel model that assesses the relationships between halal entrepreneurial success, innovation capability and sustainable innovation in the halal industry.

Details

Journal of Islamic Marketing, vol. 15 no. 3
Type: Research Article
ISSN: 1759-0833

Keywords

Article
Publication date: 30 November 2022

Jarrod Haar and Kirsty de Jong

The purpose of this paper is to explore impostor syndrome or impostor phenomenon (IP), which is defined as high-achieving individuals' failure to internalize accomplishments…

1379

Abstract

Purpose

The purpose of this paper is to explore impostor syndrome or impostor phenomenon (IP), which is defined as high-achieving individuals' failure to internalize accomplishments. Despite the wide study of IP, the role of the context beyond the individual is largely ignored, although recently, calls have been made for such scrutiny. In this study perceived organizational support (POS) is included as a contextual factor.

Design/methodology/approach

Using a large and representative sample (n = 1,042) of New Zealand employees, the study seeks to investigate IP using the standard Clance IP scale test, and the frequency of IP is calculated. Next, it assesses the links between IP and mental health, specifically job anxiety and job depression, are explored. POS is included as a moderator.

Findings

Overall, the study finds solid evidence of the psychometric properties of the scale, with the following frequencies across categories: few IP issues (14.0%), moderate IP issues (37.3%), frequent IP issues (39.7%) and intense IP issues (8.9%). Regression analysis shows that IP is positively related to job anxiety and job depression. The interactions between POS and IP support the hypothesized buffering effect. Additional tests suggest that IP is a widespread workplace phenomenon irrespective of individual or organization demographics.

Research limitations/implications

The findings of this study highlight the common nature of IP in the workplace and its role in mental health. However, POS clearly can play a key role in its management in the workplace.

Originality/value

The IP literature has a limited focus on workplaces, and mental health, including POS as a moderator, and provides additional value.

Details

Personnel Review, vol. 53 no. 1
Type: Research Article
ISSN: 0048-3486

Keywords

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