Search results

Okara, which is the residue of hydrosoluble extract from soybean obtained after soymilk and tofu production, has high nutritional value and can be used for ingredient in specific food products. This study aims to evaluate the production and properties (physicochemical, microscopical and functional ones) of okara flour (OF) obtained from okara as a by-product of soymilk and tofu production.

Wet okara resulted from the soymilk process underwent convective drying up to reach mass stability (60°C for 12 h). OF properties were analyzed by official methods by AOAC, i.e. mineral composition was evaluated by atomic absorption equipment; color; water absorption index (WAI); milk absorption index (MAI); oil absorption capacity (OAC); and foam capacity (FC) required mixtures with water, milk and oil, separation and gravimetry, respectively; and microstructure was determined by a scanning electron microscope.

Results showed the potential OF has as a source of protein (24.74 g/100 g) and dietary fiber (58.27 g/100 g). Regarding its color after the drying process, OF was markedly yellow (b* parameter 20.16). Its WAI was 3.62 g/g, MAI was 4.33 g/g, OAC was 3.68 g/g and FC was 1.32 per cent. The microscopic analysis of OF showed that both loose and agglomerated particles had irregular structures and indefinite forms.

Production of flour from wet okara can be an alternative use of this by-product. This study showed important characteristics of OF and its possible application to the food industry. Thus, OF was shown as a potential ingredient with high nutritional value.

This paper seeks to evaluate the influence of tellurium content on the machinability of the microalloyed pearlitic steel (DIN 38MnS6). Two grades of steels were used, one with high (27 times greater) tellurium content and one with a low tellurium content. Machinability of the steel was determined by the number of holes drilled by the tool before undergoing severe deformation. The drilling test matrix was prepared using a fractional factorial design with five input variables studied at two levels (25‐1). Other variables investigated include cutting speed (45 and 60 m/min), feed rate (0.15 and 0.25 mm/rev), geometry of the twist drills and use of minimum quantity lubrication (MQL) at the flow rates of 30 and 100 ml/h. Statistical analysis of the results revealed that composition of the work material was most influential on tool performance. Addition of tellurium to the steel significantly improved machinability, increasing the number of drilled holes by over 100 per cent. The MQL flow rate was the least influential as increase in the flow from 30 to 100 ml/h reduced drill life only by about 9 per cent.

The drilling tests were carried out in the vertical position, up‐down, without pre‐holes (full drilling). Cutting speeds of 45 and 60 m/min and feed rates of 0.15 and 0.25 mm/rev were employed. Drills with two sharpening types were tested. Cutting fluid used was vegetable based and applied using the MQL technique at flow rates of 30 and 100 ml/h. The rejection criterion adopted was severe deformation of the drills and the number of machined holes was used to measure the machinability of the material.

Of all the variables investigated in this study, the least influential on drill performance is the MQL flow rate. Increase in the flow rate from 30 to 100 ml/h reduced drill performance by 9 per cent, contrary to expectation. This is a result of the cooling‐lubricant action balance promoted by the cutting fluid applied in low quantities (MQL). The most influential variable on drill performance is addition of Te to the work material which gave over twofold (103 per cent) improvement in drill performance at the cutting conditions investigated. The Te particles act at the chip‐tool interface, reducing the work necessary to shear the material during chip formation. Increase in both the cutting speed and the feed rate both lowered drill performance during machining due to associated increase in cutting temperature which tended to accelerate thermally related wear mechanisms.

This work was conducted to evaluate the machinability of a novel alloyed steel employed in the automobile industry. Drilling was considered as most automobile components especially the engine block is designed with many holes which require drilling process.

Suggests that a very low volume of lubricant is enough to improve the cutting operation because the area that requires lubrication is small. An estimate of the volume of lubricant necessary has been carried out (7.2ml h^‐1) and some comments are presented about results of previous experiments using extremely low volumes of lubricant (108ml h^‐1). The low volume of lubricant is applied in the same way as the conventional system. In these previous experiments the effect of lubrication is measured by surface finish, cutting force and workpiece temperature. The improvement in surface finish when low volume of lubricant is applied is similar to the results obtained with tests carried out using the conventional cutting fluid system. This improvement is not due to lubrication on the rake face to avoid built‐up edge, but action on the machined surface after it has been formed.

The figure of the femme fatale is attached to a range of contested meanings around femininity, sexuality and violence. Despite its ambiguity and its origins in art, myth and fiction, the term has proven popular in giving a name to violent articulations of female power in non-fictional settings by journalists. In this chapter, I outline the figure of the femme fatale as an archetype of women's violence that appears throughout Western popular culture, and provide an overview of the term's definitions and cultural meanings. In doing so, I trace the figure's movement across different forms and genres of popular culture. I identify a number of themes in the existing scholarship around the figure: feminist criticism of the figure; the value that feminist film scholars have found in the figure as a symbol of power and sexual transgression; the relationship between the femme fatale, race and the colonial imagination; and the way the idea of the femme fatale has been used in reporting of real-life women's violence.

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.

The native species from western Mato Grosso do Sul provide fruits with unique sensory characteristics and high nutrient concentrations. Tropical fruit consumption is increasing due to the growing recognition of the nutritional value. These fruits play important roles through the marketing of their products and nutritionally through their consumption. All fruits are edible and are used in the food industry and well sensory accepted. The purpose of this paper is to verify the physicochemical characteristics, bioactive compounds and antioxidant activity in fruits collected in the Cerrado and Pantanal biomes from western Mato Grosso do Sul.

The fruits of baru, bocaiuva, jatobá, jenipapo and pequi were collected. To characterize them, longitudinal diameter, transverse diameter, total soluble solids, acidity, pH, ascorbic acid, total phenolics, antioxidant capacity, total sugar, glucose and macro and micronutrient contents analysis were performed in triplicate.

Jatobá presented the highest values of vitamin C. For phenolics, baru and jatobá stood out; bocaiuva presented the highest results for sugars, while jatobá was superior for glucose. The fruits with the highest antioxidant capacity, DPPH, were pequi and baru, while via ABTS the jatobá was the highest. Baru presented higher levels of nitrogen, phosphorus, magnesium, copper, zinc and iron. The bocaiuva presented the highest results for potassium and sulfur, the jatobá calcium and manganese. Jenipapo stood out with its boron content. Magnesium presented superior results in the baru, jenipapo and bocaiuva. The results reinforce the diversity of physicochemical characteristics.

The increase of the flow of available information, together with the growth of multicultural influences, the search for wholesome diet and the diversity of flavors and colors make these fruits important regional development tools. Their characteristics encompass national and international exploration potential that arouse consumer interest and contribute to the pursuit of innovations. In addition, the native species mentioned above provide fruits with unique sensory characteristics. Their consumption is increasing in the markets due to the growing recognition of their nutritional value. Therefore, these fruits play important roles, economically, through the marketing of their products and nutritionally through their consumption.

The purpose of this article is to investigate the interrelationships between innovation climate and human capital in the development of dynamic capabilities related to innovation. The study presents a set of concepts about variables involved in the innovation process and their interrelationship, addressing the analysis of international scientific production related to the antecedents of the innovation climate, human capital and dynamic capabilities.

A review of the literature from 1998 to 2018 was carried out, using descriptive statistical methods, at first, and qualitative analysis of the results in order to visualize the current configuration of the field of study of innovation background.

The results demonstrate a significant number of studies relating human capital and dynamic capabilities and little quantitative significance in studies relating to a climate of innovation and dynamic capabilities. The research describes how the dynamic capabilities of innovation have been approached in a conceptual model based on the perspective of human capital and innovation climate.

The study did not contemplate the analysis of the interrelationship between the resource configuration construct and the dynamic innovation capacities (part of the gap pointed out by Tuzovic, Wirtz and Heracleous (2018), constituting a perceptible limitation of the analyzes carried out in this article.

The influence of the innovation climate construct and its relationship with dynamic innovation capabilities deserves greater attention in research with an empirical approach, constituting a field to be explored by scientific research in organizations.

The research sought to investigate the gap involving the interrelations between innovation climate and human capital in the development of dynamic capabilities related to innovation, indicating the need for further empirical studies on the subject.

Supply chains (SCs) depend on interorganizational relationships (IORs) to function optimally, yet crises may lessen the knowledge flows therein. This paper aims to address this issue by proposing a mediation effect between knowledge generation and market orientation by crisis perception in SC.

Partial least square structural equation modeling was used to test the hypotheses. Data collection comprised 279 full answers of business-to-business organizations in global SCs.

The data provide evidence that, contrary to the extant literature, knowledge generation during a crisis in a SC does not mitigate crisis perception. In addition, findings suggest there are no significant differences between manufacturing and service SCs in sensemaking during crises and that during crises, SC links diminish cooperation in terms of knowledge generation and sharing and focus on individual performance.

The authors have found a conflicting theoretical issue – while extant literature posits setting IORs lead to high sunk cost, making IOR channels costly and reliable for information flows during crises, the behavioral perspective posits that when crises hit, exogenous shocks induce inwards focus diminishing information flows. The results provide insights on this seemingly inconsistent scenario and point to future avenues of research.

Women entrepreneurs face several challenges in creating and running ventures, especially in emerging and developing countries. In this sense, by aiming to generate inputs capable of helping overcome them, this study aims to categorize the policy, managerial and practical implications of articles whose empirical research was in one or more of the 155 emerging and developing countries. Further, although scholars have addressed female entrepreneurship in developed economies, there is scant literature in the context explored here. This article provides suggestions for new studies, helping academics fill gaps in the literature.

This article adopts a systematic literature review approach, performing content analysis and bibliometric description for the sample. The study comprises 77 articles selected from the Scopus and Web of Science databases.

Research concentrates on Asian countries, with lower incidences in Latin America and Africa. The policy implications focus mainly on the executive rather than legislative spheres. The practical implications focus mainly on entrepreneurial development agencies and women entrepreneurs. Among the suggestions for novel studies, those focusing on methodological choices and female enterprises stand out.

This paper maps and categorizes the policy, managerial and practical implications, helping to raise governments’, policymakers’ and practitioners’ awareness of the preferred strategies to overcome the challenges of female entrepreneurship.

This paper emphasizes reflections of mutual interest to researchers, policymakers and practitioners, filling gaps in studies that prioritize an academic audience. Regarding the academic audience, this paper contributes to innovatively categorizing suggestions for future research and building an extensive research agenda capable of guiding research in this area.

Banana is an important tropical fruit with high demand in the market. The ripe fruits are less resistant to transport making logistics difficult. Moreover, as a climacteric fruit, it has a short post-harvest shelf life. Edible coatings/films, including active substances, have been used as an alternative for preserving fruits and vegetables during post-harvest period. The purpose of this study was to evaluate the incorporating clove essential oil on the properties of cassava starch films and their effect on the post-harvest quality of different banana varieties.

Cassava starch films incorporating clove essential oil were developed and the films were characterized with respect to moisture, thickness, solubility, water vapor permeability (WVP), biodegradability, color and in vitro antifungal activity. Cultivars such as Prata-Anã, Grand Nine, BRS Tropical and BRS Conquista were coated with cassava starch, cassava starch film with clove essential oil (CSEO) and polyvinyl polychloride (PVC). The quality of fruits was monitored during eight storage days using mass loss, total soluble solids content (TSS) and titratable acidity (TTA).

Incorporation of clove essential oil significantly increased film thickness, reduced moisture content, solubility and WVP (p < 0.05) and did not affect the biodegradability and color of the films. The essential oil incorporated films showed antifungal activity against the fungi Colletotrichum gloeosporioides and Colletotrichum musae, but not against the yeast Saccharomyces bourladii. CSEO and PVC coating were more efficient in reducing the mass loss, SS content and TTA of the coated fruits in all varieties studied. Both CSEO and PVC coatings improve the quality attributes such as TSS and TTA and reduced mass loss, of the banana varieties such as Prata-Anã, Grand Nine, BRS Tropical and BRS Conquista during storage.

The active film with essential oil showed antifungal activity and essential oil can be incorporated into other food systems. This study approaches a new possibility of film coating with essential oil for a banana that showed minimum weight loss and satisfactory quality and increased shelf life. This film coating demonstrates biodegradable characteristics that could be eco-friendly and sustainable to consumers.