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Article
Publication date: 3 February 2012

Ana Carolina da Silva and Neuza Jorge

The purpose of this paper is to evaluate the oxidative stability of soybean oil added by Lentinus edodes and Agaricus blezei extracts in accelerated storage test.

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Abstract

Purpose

The purpose of this paper is to evaluate the oxidative stability of soybean oil added by Lentinus edodes and Agaricus blezei extracts in accelerated storage test.

Design/methodology/approach

The following treatments were subjected to accelerated storage test in an oven at 60°C for 15 days: Control (soybean oil without antioxidants), TBHQ (soybean oil+100 mg/kg of TBHQ), BHT (soybean oil+100 mg/kg of BHT), L. edodes (soybean oil+3,500 mg/kg of L. edodes extract) and A. blazei (soybean oil+3,500 mg/kg of A. blazei extract). The samples were taken every three days and analyzed for peroxide values and conjugated dienes.

Findings

At the end of 15 days, the treatments TBHQ, A. blazei, L. edodes, Control and BHT showed 6.47, 8.81, 41.53, 71.28 and 78.40 meq/kg, respectively, for peroxide values and 0.37, 0.40, 0.67, 1.07 and 1.00 per cent, respectively, for conjugated dienes.

Originality/value

The research indicates that mushrooms may be a promising source of natural antioxidants. Therefore, natural extracts of mushrooms can be applied to vegetable oils as a way to reduce the degradation caused by lipid oxidation.

Details

Nutrition & Food Science, vol. 42 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Book part
Publication date: 23 March 2017

Barbara de Lima Voss, David Bernard Carter and Bruno Meirelles Salotti

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in…

Abstract

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

Details

Advances in Environmental Accounting & Management: Social and Environmental Accounting in Brazil
Type: Book
ISBN: 978-1-78635-376-4

Keywords

Open Access
Article
Publication date: 20 April 2018

Anielson Barbosa Da Silva, Ana Carolina Kruta de Araújo Bispo, Danilo Goncalves Rodriguez and Francisco Ialyson Felipe Vasquez

The purpose of this paper is to present a proposal for structuring the use of problem-based learning (PBL) as an active teaching strategy and assess PBL’s implications for student…

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Abstract

Purpose

The purpose of this paper is to present a proposal for structuring the use of problem-based learning (PBL) as an active teaching strategy and assess PBL’s implications for student learning in the undergraduate management degree program of a federal university in Northeastern Brazil. PBL can turn students into active subjects in their own learning and promote the development of decision-making abilities through the identification and analysis of real problems.

Design/methodology/approach

The study follows the assumptions of qualitative research and uses the action research approach. The data were collected through reflective reports (texts freely written by students describing their experiences in a course) and through interviews. The collected material formed the basis for analysis and discussion of the results using content analysis.

Findings

The results indicate that the PBL teaching strategy has positive implications for student learning in that it promotes the integration of theory and practice, which enhances the motivation to learn. The students perceived the practical aspect, teamwork and presence of an entrepreneur/manager in the PBL classes as factors facilitating learning. By contrast, teamwork and the time involved were seen as factors limiting learning.

Practical implications

The use of PBL demonstrates its potential for learning through the integration of students’ cognitive, behavioral and social dimensions, fostering closer integration with the context of professional activity. The presence of entrepreneurs/managers who present real problems to be analyzed by the students in the classroom can contribute significantly to the promotion of learning and reflection by undergraduate management students.

Originality/value

The results of this study reveals its originality and value to management education in Brazil because it defines a framework for the implementation of PBL as an active learning strategy in a management program, it indicates the potential of PBL for the development of students’ competencies, it increases the potential for integrating theory with professional practice and it can aid the process of training teachers as they assess the implications of PBL for student learning.

Details

Revista de Gestão, vol. 25 no. 2
Type: Research Article
ISSN: 2177-8736

Keywords

Article
Publication date: 15 January 2021

Thaís Peiter de Borba, Manoella Vieira da Silva, Manuela Mika Jomori, Greyce Luci Bernardo, Ana Carolina Fernandes, Rossana Pacheco da Costa Proença, Gabriele Rockenbach and Paula Lazzarin Uggioni

Self-efficacy in cooking and consuming fruits and vegetables is one of the dimensions that compose cooking skills. This cross-sectional study aimed to assess the self-efficacy of…

Abstract

Purpose

Self-efficacy in cooking and consuming fruits and vegetables is one of the dimensions that compose cooking skills. This cross-sectional study aimed to assess the self-efficacy of Brazilian university students in cooking and consuming fruits and vegetables and examine the relationship of self-efficacy with sociodemographic and lifestyle characteristics.

Design/methodology/approach

Data were collected through an online questionnaire, which was culturally adapted and validated for the studied population. Questions about self-efficacy for using basic cooking techniques (SECT), self-efficacy for using fruits, vegetables, and seasonings (SEFVS) and produce consumption self-efficacy (SEPC) were rated on a five-point Likert scale. Differences in median self-efficacy score between groups were compared using the Mann–Whitney U test or the Kruskal–Wallis test followed by the Mann–Whitney U test.

Findings

766 subjects participated in the study. The mean age was 21 ± 5.6 years, most respondents were female (60%), reported to know how to cook (72%), and lived with parents and/or grandparents (45%). The median SECT and SEFVS scores were 3.55, and the median SEPC score was 3.33. Female students, individuals aged more than 25 years, and students who did not live with their parents or grandparents had higher (p < 0.005) self-efficacy scores. Low SECT, SEFVS and SEPC scores were associated with having less than one hour a day to cook (p = 0.023, 0.01, and 0.002, respectively) and not knowing how to cook (p < 0.001). There was no relationship of median self-efficacy scores with source of knowledge about cooking skills or parental education.

Originality/value

The results of this study can guide interventions and public policies aimed at health promotion in the university setting.

Details

British Food Journal, vol. 123 no. 6
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 9 May 2016

Tatiane Ferreira da Silva and Ana Carolina Conti-Silva

The purpose of this paper was to replace totally the wheat flour for rice flour, whole soy flour and cassava starch in the formulation of chocolate cookies.

Abstract

Purpose

The purpose of this paper was to replace totally the wheat flour for rice flour, whole soy flour and cassava starch in the formulation of chocolate cookies.

Design/methodology/approach

Chocolate cookies with wheat flour, rice flour, whole soy flour and cassava starch were produced, and compared to a commercial chocolate cookie regarding to physical properties and sensory acceptability.

Findings

The chocolate cookie made with rice flour instead of wheat flour was as liked as the cookie with wheat flour, and the greater acceptability scores received by the rice flour cookies correlated with less colour intensity and a lower specific volume thereof. The cookie with cassava starch stood out because of the intensities of its parameters, its more intense colour, and its acceptability scores among the consumers. The cookie with whole soy flour had lower sensory acceptability scores, and the commercial cookie stood out for its high cutting force (instrumental texture).

Originality/value

Celiac consumers desire products with adequate sensory characteristics. This study presents a new gluten-free product, the chocolate cookie made with rice flour, that has the potential to be produced, as this product is as accepted as a cookie made with wheat flour, and even more accepted than a commercial one also made with wheat flour. Therefore, this study offers subsidies for improving the diet of celiac consumers.

Details

Nutrition & Food Science, vol. 46 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 10 October 2022

Carla Patricia Finatto, Ana Regina Aguiar Dutra, Camilla Gomes da Silva, Nei Antonio Nunes and José Baltazar Salgueirinho Osório de Andrade Guerra

The purpose of this paper aims to discuss the outreach strategies of higher education institutions (HEIs) to promote the inclusion of refugees, focusing on two case studies of…

Abstract

Purpose

The purpose of this paper aims to discuss the outreach strategies of higher education institutions (HEIs) to promote the inclusion of refugees, focusing on two case studies of programs in southern Brazil.

Design/methodology/approach

This paper analyzes two outreach programs of Brazilian universities: the Welcome Program for Immigrants (Programa Acolhida ao Imigrante) of the University of South Santa Catarina, a private higher education institution and the Support Center for Immigrants and Refugees (Núcleo de Apoio ao Imigrantes e Refugiados), sponsored by the Federal University of Santa Catarina, a public university. The activities of the two institutions were compared with the targets of the sustainable development goals to discuss the outreach strategies of HEIs aimed at promoting the inclusion of refugees, through descriptive research, with a qualitative approach based on documentary and bibliographic research.

Findings

The results show that academic participation in research and outreach programs provides refugees with an education but also represents a social contribution far beyond qualifications and technical training, by mitigating local and global problems. The practice of inclusive education allows a reduction in historically existing inequalities. The findings of this study indicate that the results are much more effective when universities, government and society work together to reduce inequalities.

Originality/value

This study addressed how universities can and should ensure life quality (SDG 3), including an equitable education and fostering lifelong learning opportunities for everybody (SDG 4) and gender equality (SDG 5), to reduce unemployment (SDG 8) and inequalities among people (SDG 10), through outreach projects.

Details

International Journal of Sustainability in Higher Education, vol. 24 no. 3
Type: Research Article
ISSN: 1467-6370

Keywords

Article
Publication date: 13 July 2015

Marília Gonçalves Cattelan, Maurício Bonatto Machado de Castilhos, Débora Cristina Moraes Niz da Silva, Ana Carolina Conti-Silva and Fernando Leite Hoffmann

This paper aimed to evaluate sensory acceptability of salad dressing formulated with different quantities of oregano essential oil (OEO) and salt as a starting point for the use…

Abstract

Purpose

This paper aimed to evaluate sensory acceptability of salad dressing formulated with different quantities of oregano essential oil (OEO) and salt as a starting point for the use of the spice as a natural preservative in food.

Design/methodology/approach

Sensory assessment of salad dressing with OEO was evaluated in relation to the following attributes: appearance, aroma, consistence, flavour and overall acceptability. Five formulations were developed with variation in the levels of OEO and sodium chloride through a 22 factorial design with a central point. A nine-point hedonic scale was used, besides purchase intent by a structured five-point scale.

Findings

There was no significant difference in the acceptance of the samples. Cluster analysis showed that formulation with intermediate quantities of salt and OEO was preferred by the consumers. OEO salad dressings with low salt content, regardless of OEO amount, presented higher intention to purchase.

Research limitations/implications

Due to an increasing interest in the use of natural preservatives to replace chemical additives, this study provided a starting point for further investigations concerning sensory acceptability of OEO in food.

Practical implications

Finding the balance between pleasant flavour and significant reduction of the use of salt in foods for dietary reasons is a complex challenge. Furthermore, studies need to be performed concerning interaction between amounts of essential oils and salt.

Originality/value

This study provides insights that suggest a promising usage of OEO in food.

Details

Nutrition & Food Science, vol. 45 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 9 June 2023

Ana Junça Silva, Carolina Violante and Sílvio Brito

Recently new forms of telework emerged, such as the hybrid model; however, little is known about how and when it promotes performance. Based on the job demands-resources (JD-R…

Abstract

Purpose

Recently new forms of telework emerged, such as the hybrid model; however, little is known about how and when it promotes performance. Based on the job demands-resources (JD-R) model, the authors developed a conceptual framework to demonstrate that the hybrid model of telework positively influences performance via positive affect. Furthermore, the authors identified both personal (emotional intelligence [EI]) and job resources (autonomy) as moderators of this relationship.

Design/methodology/approach

To test the proposed model, the authors collected data from teleworkers who were in a hybrid telework regime from the telecommunications industry (N = 290).

Findings

The results showed that (1) telework positively influenced positive affect and, in turn, performance and (2) the indirect effect of telework on performance through positive affect was moderated by both EI and autonomy.

Originality/value

These results appear to be fundamental for a better conceptual and practical understanding of how and when hybrid telework can improve performance.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

Open Access
Article
Publication date: 25 June 2021

Ana Carolina de Aguiar Rodrigues, Antonio Virgílio Bittencourt Bastos, Daniela Campos Bahia Moscon and Giselle Cavalcante Queiroz

Is it possible to consider organizational entrenchment (OE) and continued commitment (CC) as the same phenomenon? Are there enough differences between CC and affective commitment…

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Abstract

Purpose

Is it possible to consider organizational entrenchment (OE) and continued commitment (CC) as the same phenomenon? Are there enough differences between CC and affective commitment (AC) to defend that they cannot be part of the same construct? The objective of this study was to examine the convergence of validated measures between OE and CC and their discrimination to AC. The authors’ aim was to compare two models of antecedents and their consequences: the model that includes OE and AC, and the one that includes CC and AC.

Design/methodology/approach

An extensive cross-sectional study was conducted with a sample of 1,648 respondents (the majority lived in the Northeast region of Brazil, worked in private services companies, were female, single, under 35 years old, had, at least, begun college studies and received up to five times the minimum wage). A six-point Likert scale was used in this study. To measure OE, CC and AC, the authors used reduced versions of validated measures. To test the hypotheses, first, the authors used Pearson's correlation analysis and then, structural equation modeling, comparing two models of antecedents and consequences (one including OE and AC, and the other, including CC and AC).

Findings

As expected, affective commitment had a positive impact on the desired behavior (intention for commitment, defense, staying), whereas entrenchment and continuance commitment had a negative or non-significant impact on these behaviors. Results show the existence of a conceptual and empirical overlap between organizational entrenchment and continuance commitment and indicate that the continuance dimension is not part of commitment but rather part of organizational entrenchment.

Research limitations/implications

The fact that this is a cross-sectional study sets a limitation on the results, for not allowing greater understanding of the dynamics and the causal direction of relationships. Additionally, it follows the trend of studies in the organizational behavior field of utilizing self-reported data, which results in problems related to perceptual bias (Morrow, 2011).

Practical implications

The practical implications of this study regard a greater clarification on which behaviors are expected from either committed and entrenched workers, and which drivers may lead to each of these bonds. Therefore, a better understanding of the phenomenon contributes to the training of managers and to the design of organizational policies and practices.

Social implications

The clarity of bonds also allows its application to different contexts beyond business organizations, as a step to reach better understanding of commitment and entrenchment in different settings, economical and national realities.

Originality/value

It is expected that these findings add a higher precision to the research on commitment, thus contributing to the validity of the measures. Given these results and confirmation that OE and CC represent the same bond, it is considered appropriate to designate this type of bond simply as OE. Additionally, the results of this study represent a further argument in favor of prioritizing the AC than CC in research and in management of organizational commitment.

Details

Revista de Gestão, vol. 29 no. 1
Type: Research Article
ISSN: 1809-2276

Keywords

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