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1 – 9 of 9Fernanda D.B. Abadio Finco, Sabrina Böser and Lutz Graeve
The aim of this work is to assess antiproliferative effects of phenolic extracts from Bacaba (Oenocarpus bacaba) and Jenipapo (Genipa americana) fruits through a comparison of…
Abstract
Purpose
The aim of this work is to assess antiproliferative effects of phenolic extracts from Bacaba (Oenocarpus bacaba) and Jenipapo (Genipa americana) fruits through a comparison of assays.
Design/methodology/approach
Bacaba and Jenipapo phenolic extracts in a concentration range from 0 to 1400 μg/mL were tested by four different assays (MTT, MUH, methylene blue, trypan blue) to assess the antiproliferative potential of the phenolic compounds of these fruits.
Findings
MTT test can be applied with confidence to assess antiproliferative activity to the fruits extracts here studied. The extract of Bacaba showed higher antiproliferative activity than the one of Jenipapo.
Originality/value
Getting to know biofunctional properties of locally consumed fruits such as Bacaba and Jenipapo could enhance commercial properties to these fruits. This study is the first to one to assess the antiproliferative activity of the Brazilian fruits Bacaba and Jenipapo.
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Judith Müller-Maatsch, Johannes Jasny, Katharina Henn, Claudia Gras and Reinhold Carle
The purpose of this paper is to provide insight into the consumers’ perception of natural and artificial food colourants. Furthermore, attitudes towards the application of…
Abstract
Purpose
The purpose of this paper is to provide insight into the consumers’ perception of natural and artificial food colourants. Furthermore, attitudes towards the application of carmine, being technically important and ubiquitously used to impart red shades, are assessed and analysed. Originating from insects, carmine is considered as natural but may arouse disgust.
Design/methodology/approach
In total, 625 individuals were surveyed using an online, self-administered questionnaire to represent a broad cross-section of the German population.
Findings
Independent of their origin, the application of colourants was rejected by 57.0 per cent of the interviewees. In total, 31.8 per cent of the participants stated a neutral attitude, while only 11.2 per cent expressed a positive notion. Most respondents preferred colourants from natural sources to artificial ones. While consumers perceive natural food colourants composed of genuine plant pigments positively, 61.6 per cent of respondents disliked the application of animal-derived colourants, 24.8 per cent of them did neither reject nor like it, and only 13.6 per cent of the interviewees stated a positive attitude towards them. The findings of this paper further indicate consumers’ preference for colourants to be either artificial or plant-derived rather than carmine. Food colourants are being rejected, possibly due to misleading information and confusing labelling. Consequently, information about carmine, including its origin and production, did not increase the aversion to products that are dyed with it, but increased their acceptance.
Originality/value
This study outlines consumer perception and attitudes towards food colourants. For the first time, the findings of this paper report the effect of revealing information about an additive, which initially aroused disgust, and its influence on consumer perception.
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Marcelo Caetano de Oliveira, Paula Nogueira Curi, Rafael Pio, Daniela da Hora Farias, Marcio Roberto Rigote, Maria Cecília Evangelista Vasconcelos Schiassi, Moacir Pasqual and Vanessa Rios de Souza
The native species from western Mato Grosso do Sul provide fruits with unique sensory characteristics and high nutrient concentrations. Tropical fruit consumption is increasing…
Abstract
Purpose
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.
Design/methodology/approach
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.
Findings
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.
Originality/value
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.
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Adrielle Borges de Almeida, Anna Karoline Carmo Silva, Ariadne Ribeiro Lodete, Mariana Buranelo Egea, Mayra Conceição Peixoto Martins Lima and Fabiano Guimarães Silva
The purpose of this study was to evaluate six different fruits from the Cerrado as to their chemical and bioactive properties.
Abstract
Purpose
The purpose of this study was to evaluate six different fruits from the Cerrado as to their chemical and bioactive properties.
Design/methodology/approach
Six different fruits from the Cerrado (araticum, baru, jatoba-do-cerrado, lobeira, macauba and pequi) were characterized regarding moisture, ash, lipids, proteins, carbohydrates, carotenoids, chlorophyll, ascorbic acid, flavonoids, phenolic compounds and their antioxidant activities.
Findings
The highest flavonoid content, which was found in araticum pulp, was significantly different from the ones of other fruit pulps. The carotenoid content of pequi pulp was 12-fold the one of lobeira pulp. The vitamin C content of baru pulp was five-fold the Reference Daily Intake (RDI). In relation to the antioxidant activity, araticum (5.7 µM/g) and jatoba (5.2 µM/g) pulps exhibited the highest values (p < 0.01). Both baru and araticum pulps were capable of capturing the radical with mean percentage of discoloration of 68.7 and 67.4%, respectively (p < 0.01).
Originality/value
Native fruits of the Cerrado have been poorly described in the literature, even though they are highly consumed in the region. Publicizing their nutritional characteristics can increase the commercial value of these fruits, which have been traditionally devalued. In addition, knowledge of new sources of nutrients contributes to their use by pharmaceutical and food industries.
Angelo Cavallo, Antonio Ghezzi and Bertha Viviana Ruales Guzmán
This paper aims to investigate how a firm may innovate its business model to internationalize.
Abstract
Purpose
This paper aims to investigate how a firm may innovate its business model to internationalize.
Design/methodology/approach
Owing to its novelty and to the depth of the investigation required to grasp the mechanisms and logics of business model innovation aiming at internationalization, a single case study has been performed related to a company located in North-Western Colombia.
Findings
The study provides detailed empirical evidences over the mutual connection and complementarities among value mechanisms of business models. Moreover, this study suggests that BMI fosters internationalization to scale, which, in turn, will require additional changes to match new customer needs as they emerge. Also, the study shows an extension of the action–space of lean startup approaches, intended as scientific approaches to international entrepreneurship.
Originality/value
This study connects business model innovation and internationalization as few studies have done before.
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Shahid Adeel, Fazal-Ur Rehman, Ayesha Amin, Nimra Amin, Fatima Batool, Atya Hassan and Meral Ozomay
This study aims to observe the coloring efficacy of coffee-based natural brown colorant for cotton dyeing under microwave (MW) treatment.
Abstract
Purpose
This study aims to observe the coloring efficacy of coffee-based natural brown colorant for cotton dyeing under microwave (MW) treatment.
Design/methodology/approach
The colorant extracted in particular (neutral and acidic) media was stimulated by MW treatment up to 6 min. Dyeing variables were optimized and 2–10 g/100 mL of sustainable anchors (mordants) have been used to get colorfast shades.
Findings
It has been found that un-irradiated acidic extract (RE) containing 5% of table salt at 80 °C for 50 min has given high color yield onto MW-irradiated cotton fabric (RC = 2 min). The utilization of 2% of Fe, 10% of tannic acid and 10% of sodium potassium tartrate before bio-coloration, whereas 4% of Fe, 10% of tannic acid and 6% of sodium potassium tartrate after bio-coloration has given good color characteristics. In comparison the application of 6% of pomegranate and turmeric extracts before bio-coloration and 6% of pomegranate and 10% of turmeric extracts after bio-coloration have given good color characteristics. New bio-mordants can be added to get more new colorfast shades.
Research limitations/implications
There is no research limitation for this work. New bio-mordants can be added to get more new colorfast shades.
Practical implications
This work has practical application for artisans, textile industry and handicrafts. It is concluded that colorant from coffee beans can be possible alternative of synthetic brown dyes and inclusion of MW rays for extraction and plant molecules as shade developers can make process more green.
Social implications
Socially, it has good impact on eco-system and global community because the effluent load is not carcinogenic in nature.
Originality/value
The work is original and contains value-added product for textiles and other allied fields.
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Eyarkai Nambi V., Gitanjali Behera, Vinod Kumar Saharan and Vijay Singh Meena
Pickling or salt curing is one of the major traditional processes to increase the shelf life of bitter gourd in India. No information is available about optimization of salt…
Abstract
Purpose
Pickling or salt curing is one of the major traditional processes to increase the shelf life of bitter gourd in India. No information is available about optimization of salt curing of bitter gourd and the related changes in its quality. Moreover, specific investigations are needed to evaluate individual susceptibility of fruit and vegetables to osmotic dewatering with pre-treatment to obtain new minimally processed food products. The purpose of this study is to optimize the salt curing process with blanching as pretreatment for bitter gourd.
Design/methodology/approach
A study was conducted to optimize the blanching and other process factors of salt curing (solution concentration and treatment time) based on mass transfer and quality factors of bitter gourd using response surface methodology. Experimental design was made using central composite rotatable design with different time of blanching, solution concentration and treatment time. The colour, firmness, water activity and other mass transfer kinetic parameters were used for optimization.
Findings
Blanching had significant effect (p < 0.001) on water loss (WL), weight reduction (WR), solid gain (SG), water activity and firmness of bitter gourd. Mass transfer kinetic parameters like WL, SG and normalized solid content increased and normalized moisture content was found to decrease with increase in solution concentration and curing time. Relationships between process variables and quality factors were established in either quadratic or linear form with higher R2 values. A 15 per cent solution concentration for the period of 5 h with the blanched samples at 800°C for 5.26 min was found to be the optimum condition for osmotic dehydration to achieve maximum WL and SG, minimum water activity and minimum changes in firmness.
Practical implications
The optimized combinations for the salt curing process would be more helpful for the processors and other stakeholders involved in the pickling process by reducing energy and other input resources.
Social implications
Mostly in India, the pickling process is carried out at micro- and small-scale level and in an unorganized way. This study would help those involved to reduce their input resources and to organize the process, thus leading to more dividends to the stakeholders and optimum price to the end-users. For the medium- and large-scale processing units, this study would give insight to automate the whole process in an efficient manner.
Originality/value
This study was performed using sophisticated and higher-end instruments. The data were observed meticulously and analysed with proper statistical tools, increasing the credibility of the study. This study gives concrete results which are directly useful to the stakeholders.
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Gilciane Américo Albuquerque, Ana Vânia Carvalho, Lênio José Guerreiro de Faria, Renan Campos Chisté, Luiza Helena da Silva Martins and Alessandra Santos Lopes
Jambolan has be used as a diabetes-treatment aid, and it has become quite popular; studies have been carried out over the years on this fruit because it presents high activity…
Abstract
Purpose
Jambolan has be used as a diabetes-treatment aid, and it has become quite popular; studies have been carried out over the years on this fruit because it presents high activity against superoxide anion and hydroxyl radicals due to the bioactive compounds that may play an important role against oxidative stress. No studies have been reported on the effects of pasteurization on the bioactive compounds of jambolan tropical juice. The paper aims to discuss these issues.
Design/methodology/approach
For evaluation of the effects of pasteurization on jambolan juice bioactive compounds, a complete compound and rotational experimental design was carried out by varying temperature (80–90°C) and time (45–75 s). The bioactive compounds (total phenolic, total anthocyanin and antioxidant activity) and the enzymatic activity of enzymes (enzymatic browning) were assessed.
Findings
The study of bioactive compounds in the pasteurized juice of jambolan, showed that the total phenolics (TP) and ABTS antioxidant activity presented statistical significance (p<0.05). The action of enzymes causing enzymatic browning was only observed in the standard sample. The optimization of the pasteurization process with the maximum bioactive compound retention was 91.65°C for 69.45 s. The optimal point found is in agreement with studies on thermal treatment that recommend using short times at high temperatures for better retention of food constituents.
Originality/value
The incidence of chronic diseases in humans has increased significantly over the years, some bioactive phytochemicals present in fruits may help against these diseases, so the production of tropical jambolana juices can help to nourish and regulate the consumer health. Therefore, studying the maintenance of bioactive compounds present in this product could be an alternative for the production of healthier foods.
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