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Article
Publication date: 11 November 2019

Zahra Mohebbi, Maryam Azizi-Lalabadi, Sayyed Javad Hosseini, Sajjad Abdi Nowrouzani, Mohammad Alizadeh and Aziz Homayouni

The enrichment of bread with non-digestible prebiotic ingredients may exert health-promoting effects and provide healthier food choices for those suffering from metabolic…

Abstract

Purpose

The enrichment of bread with non-digestible prebiotic ingredients may exert health-promoting effects and provide healthier food choices for those suffering from metabolic diseases, including obesity and diabetes. The purpose of this study was to investigate the effects of ß-glucan and resistant starch incorporation on the glycemic index (GI) and glycemic load (GL) of white bread.

Design/methodology/approach

Seven different formulations of prebiotic bread were produced using different proportions of ß-glucan (0.8, 1 and 1.2 per cent), resistant starch (5.5, 8 and 10.5 per cent) and the combination of resistant starch and ß-glucan in a ratio of 4:0.5.

Findings

The GI and GL of the prebiotic bread prepared with 1 per cent ß-glucan (w/w) were 55.7 and 7.8, respectively, whereas those of the prebiotic bread prepared with 8 per cent resistant starch (w/w) were 64.8 and 8.42, respectively, with both breads having significantly lower GI and GL values than the control (P < 0.05). It was concluded that the incorporation of 1 per cent ß-glucan may be beneficial in producing prebiotic bread with both low GI and low GL.

Originality/value

Although white bread is a main food source in human diet, its high GI and GL make it an unhealthy food choice. The incorporation of ingredients with prebiotic effects, such as ß-glucan and resistant starch, can improve the nutritional value of this product by lowering its GI and GL.

Details

Nutrition & Food Science, vol. 49 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 28 April 2020

Mina Movahedian, Jamal Rahmani, Zahra Yari, Samaneh Rashvand and Azita Hekmatdoost

The purpose of this paper is to evaluate the possible relationship of dietary glycemic index (GI) and glycemic load (GL) with ulcerative colitis (UC) risks because there is…

Abstract

Purpose

The purpose of this paper is to evaluate the possible relationship of dietary glycemic index (GI) and glycemic load (GL) with ulcerative colitis (UC) risks because there is insufficient evidence on the association of GI and GL with UC incidences.

Design/methodology/approach

In this case–control study, dietary GI and GL of 62 patients with histology-confirmed UC and 124 controls were assessed using a validated semi-quantitative food frequency questionnaire. The primary outcome measure was the association between dietary GI and GL and UC risk.

Findings

In age-adjusted and unadjusted models, there was no statistically significant association between dietary GI and GL and UC risk. However, after adjusting for all known covariates, the odds ratio of UC in third tertile of GI was 2.86 folds higher than first tertile (95% CI: 1.02–8.00, p for trend = 0.04). In the case of GL, when the confounders were adjusted, although subjects in the third tertile were at 2.70 times higher risk of having UC than those in the first tertile (95% CI: 0.72–10.15, p for trend = 0.15), the association was not statistically significant.

Originality/value

In conclusion, the findings indicate a positive relationship between dietary GI and risk of UC. Further prospective studies are needed to elucidate if the findings are consistent, in addition to experimental studies to explore the potential mechanisms of this association.

Details

Nutrition & Food Science , vol. 51 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 30 April 2018

Sepideh Yosefzadeh Sani, Sayed Ali Mortazavi, Zahra Sheikholeslami, Mehdi Karimi and Amir Hossein Elhamirad

In the past decades, the desire to use natural source foods has increased because of environmental compatibility, safety and appropriate costs. Sonication is used in food industry…

Abstract

Purpose

In the past decades, the desire to use natural source foods has increased because of environmental compatibility, safety and appropriate costs. Sonication is used in food industry owing to its short duration of process and saving energy. The purpose of this study is to investigate the effect of various maize starches in the batter on the oil absorption and quality assessment (moisture content) of chicken nuggets by using five mathematical models.

Design/methodology/approach

To determine the effects of different maize starches on oil absorption parameters, 5 per cent starches native, sonicated starch were substituted in batter instead of wheat flour. Suspensions contained native starch were treated with sonication (70 kHz, 5 min) using an ultrasound probe set. Samples were fried in a fryer at 150, 170 and 190°C for 1, 3and 5 min, respectively. Models were compared with R2 and Arrhenius equation for estimating model prediction sufficiency.

Findings

Obtained results represented that between different formulated samples, maize starch with high temperature had main significant effect (p < 0.05) on moisture content of nuggets. During frying, the amount of oil loses significantly (p < 0.05) depended on temperature and time and sonication treatment.

Originality/value

Incorporation of sonication with maize starch at higher temperature on quality assessment has not been found.

Details

Nutrition & Food Science, vol. 48 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 2 February 2024

Thomas P. Kenworthy

This research explores project manager (PM) behavior in their professional virtual communities (PVCs), using social identity theory as a theoretical foundation. The purpose is to…

Abstract

Purpose

This research explores project manager (PM) behavior in their professional virtual communities (PVCs), using social identity theory as a theoretical foundation. The purpose is to examine the extent to which PMs seek information on key topics in the Project Management Body of Knowledge Guide (PMBoK).

Design/methodology/approach

A text data analytics methodology that uses quantitative and qualitative analysis techniques is followed. The research method reveals relationships in language-based data gathered from six project management forums and blogs.

Findings

Information related to all the PMBoK topics is sought in the project management virtual communities. People management topics account for a dominant portion of interactions. The findings enhance social identification theorizing for the PM role. From a practical standpoint, the findings shed light on focal areas for greater emphasis in PM PVCs.

Originality/value

Our people management finding constructively replicates existing findings via a large, global sample and strengthens calls for increased focus on people management matters in project management. As a result, we call for increased scholarly attention to people management in project management. Finally, we encourage pursuit of several research questions to enhance knowledge of PM information-seeking behavior.

Details

International Journal of Managing Projects in Business, vol. 17 no. 1
Type: Research Article
ISSN: 1753-8378

Keywords

Article
Publication date: 14 February 2024

Cleide Gisele Ribeiro, Antônio Márcio Lima Ferraz Júnior, Fernanda Ribeiro Porto, Fabiana Aparecida Mayrink de Oliveira, Fernando Luiz Hespanhol and Rodrigo Guerra de Oliveira

The emergence of the COVID-19 pandemic changed the way in which education was delivered in early 2020, and the impacts of these changes continue to be questionable. The aims of…

Abstract

Purpose

The emergence of the COVID-19 pandemic changed the way in which education was delivered in early 2020, and the impacts of these changes continue to be questionable. The aims of this study were to evaluate: (1) the results obtained by students of the Dentistry course in the progress test carried out both before and after the pandemic, (2) the results obtained by a specific group of students who took the test in 2019–2022, and compare their results and (3) subjects that showed a reduction in the percentage of correct answers when the two tests were compared.

Design/methodology/approach

The progress test consisting of 100 multiple choice questions was applied before and after the pandemic to all students in the Dentistry course. The analyses were performed using the IBM SPSS for Statistics v.26 software program. The level of significance of 5% was adopted (<0.05).

Findings

The test was applied to 320 students in 2019 and to 272 in 2022, of whom the sample of this study was composed. The mean score values in 2019 (M = 49.10; SD = 12.03) were significantly (p = 0.026) higher than those in the year 2022 (M = 46.97; SD = 12.15), with the disciplines in the area of specific knowledge showing a greater drop in the percentage of correct answers by students. This study showed that the emergency remote education had a negative effect on the academic performance of students, based on the progress testing as an evaluation method.

Originality/value

Many studies that assessed the impacts of the pandemic on teaching were focused on the opinions of students. However, the great advantage of our study was the use of a theoretical assessment tool to verify student performance. The post-pandemic landscape beckons for comprehensive inquiries into these domains. This type of research would be valuable for gathering evidence relative to the performance of students after the emergency remote education.

Details

Journal of Applied Research in Higher Education, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2050-7003

Keywords

Abstract

Details

Journal of Intelligent Manufacturing and Special Equipment, vol. 4 no. 1
Type: Research Article
ISSN: 2633-6596

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