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Article
Publication date: 13 July 2015

Simranjeet Kaur, Sunil Kumar, Z. F. Bhat and Arvind Kumar

The purpose of this paper was to evaluate the effect of pomegranate seed powder, grape seed extract and tomato powder on the quality characteristics of chicken nuggets during…

Abstract

Purpose

The purpose of this paper was to evaluate the effect of pomegranate seed powder, grape seed extract and tomato powder on the quality characteristics of chicken nuggets during refrigerated storage.

Design/methodology/approach

The study was designed to evaluate the effect of pomegranate seed powder, grape seed extract and tomato powder on the storage quality parameters of chicken nuggets. The products were developed by incorporating optimum level of pomegranate seed powder (3 per cent), grape seed extract (0.3 per cent) and tomato powder (2 per cent) separately and were aerobically packaged in low-density polyethylene pouches and assessed for various storage quality parameters under refrigerated (4±1°C) conditions for 21 days of storage. The products were evaluated for various physico-chemical, microbiological and sensory parameters at regular intervals of 0, 7, 14 and 21 days.

Findings

A significant (p < 0.05) effect of pomegranate seed powder, grape seed extract and tomato powder was observed on the pH and thiobarbituric acid reacting substances (mg malondialdehyde/kg) values of the chicken nuggets. A significant (p < 0.05) effect was also observed on the microbiological characteristics, as the products incorporated with pomegranate seed powder, grape seed extract and tomato powder showed significantly (p < 0.05) lower values for total plate count, psychrophilic count and yeast and mould count during the period of storage. Coliforms were not detected throughout the period of storage. Significantly (p < 0.05) higher scores were observed for various sensory parameters of the products incorporated with pomegranate seed powder (3 per cent), grape seed extract (0.3 per cent) and tomato powder (2 per cent).

Originality/value

Pomegranate seed powder (3 per cent), grape seed extract (0.3 per cent) and tomato powder (2 per cent) successfully improved the oxidative stability and storage quality of the products during refrigerated (4±1°C) storage and may be commercially exploited to improve the storage quality of muscle foods without adversely affecting the sensory quality of the products.

Details

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

Keywords

Article
Publication date: 11 September 2017

Irene Rodrigues Freitas, Marília Gonçalves Cattelan, Mara Lina Rodrigues, Débora Maria Moreno Luzia and Neuza Jorge

This study aims to evaluate the effect of grape seed extract on the thermal oxidation of soybean oil.

Abstract

Purpose

This study aims to evaluate the effect of grape seed extract on the thermal oxidation of soybean oil.

Design/methodology/approach

Four treatments were used: soybean oil (SO), butylhydroxytoluene (BHT), antioxidant at concentration of 100 mg/kg in soybean oil (BHTSO), grape seed extract at a concentration of 100 mg/kg in soybean oil (Extract), and mixture at a concentration of 50 mg/kg of grape seed extract (Mixture) and 50 mg/kg of BHT in soybean oil subjected to 180°C for 20 h. The total phenolic compounds were quantified by spectrophotometry using the Folin-Ciocalteu reagent. The antioxidant activity was evaluated by the ABTS•+, DPPH and FRAP acid systems. The fatty acid composition and phytosterols were determined by gas chromatography (GC) and tocopherols were determined by high-performance liquid chromatography.

Findings

Among the treatments studied, the Extract and the Mixture presented lower losses of total phenolic compounds, DPPH and FRAP, while BHTSO had an opposite effect. After 10 h of heating, the Mixture and the Extract were more effective in reducing the formation decomposition products, measured by the amount of total polar compounds. The Mixture resulted in higher retention of essential fatty acids at the end of heating. The Extract and Mixture showed higher retention rates of total tocopherols and the Mixture resulted in 338.71 mg/100 g (P ≤ 0.05) of total phytosterol after 20 h of heating.

Originality/value

Oils undergoing the heating process suffer major changes, requiring the addition of antioxidant compounds. As a result of the questioning on the use of chemical additives, research on natural antioxidants, as substitute to the synthetic ones, is increasing. Among the natural compounds with high antioxidant potential, the grape wastes such as its seeds are highlighted. Studies using grape seed extract are scarce.

Details

Nutrition & Food Science, vol. 47 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 24 May 2021

Larissa Christine Tuffi, Daniel Angelo Longhi, Jéssica Carvalho Hernandes, Paulo Cézar Gregório and Carlos Eduardo Rocha Garcia

This study aimed at the addition of grape residue flours in beef meatballs to evaluate their behavior on physic-chemical and sensory properties. Furthermore, it is intended to…

Abstract

Purpose

This study aimed at the addition of grape residue flours in beef meatballs to evaluate their behavior on physic-chemical and sensory properties. Furthermore, it is intended to discuss the importance of the substitution of synthetic additives with natural ones, the enhancement of consumers' diets and the prevention of inappropriate waste disposal.

Design/methodology/approach

The grapes' residues were collected from wine production and transformed into flour. Their proximal chemical composition and antioxidant activities were analyzed. Then, meatballs were formulated with 0 (control), 3.5 and 7% grape flours. Lipid oxidation analyzes were performed on raw and thermally processed meatballs. Triangle and ranking sensory tests were performed to assess the consumer's perception of product appearance and flavor and the consumer's preference, respectively.

Findings

Bordeaux and Trebbiano grape flours were rich in dietary fibers, composed of 44.2 and 55.6% fibers, respectively. They showed a high antioxidant activity, in which Trebbiano was high than Bordeaux. The addition of grape flours reduced the lipid oxidation of meatballs by close to 50% than the control sample. Differences in the appearance and flavor of some meatballs were identified by the panelists; however, the flavor's change did not displease them.

Originality/value

The grape residue is rich in phenolic compounds, natural dyes and dietary fibers. Its addition as a functional ingredient in meatballs reduces the addition of synthetic additives, adds fiber to the consumer's diet and prevents inappropriate waste disposal.

Details

British Food Journal, vol. 123 no. 8
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 12 February 2018

Pranav Chauhan, Arun K. Das, P.K. Nanda, Vishal Kumbhar and J.P. Yadav

Black cumin (Nigella sativa L.) is well known for its strong, hot, peppery taste and has many nutritional, pharmaceutical and traditional therapeutic uses. The aim of this study…

Abstract

Purpose

Black cumin (Nigella sativa L.) is well known for its strong, hot, peppery taste and has many nutritional, pharmaceutical and traditional therapeutic uses. The aim of this study was to investigate the antioxidant effect of different solvent extracts of black cumin seed to retard lipid and protein oxidation in raw ground pork meat during refrigerated storage (4 ± 1°C) for nine days.

Design/methodology/approach

Black cumin extracts (BCEs) were prepared using different solvents, namely, ethanol, water, ethanol:water (60:40) and methanol:hot water (60:40). Extracts were analysed for total phenolic content (TPC), 1,1 diphenyl-2-picrylhydrazil (DPPH) radical scavenging activity and reducing power. Based on the results, water extract (WE) and ethanol–water extract (EHWE) of black cumin were selected and incorporated at 1.5 per cent into freshly minced pork meat and compared with a synthetic antioxidant, butylated hydroxytoluene (BHT; 100 ppm), in retarding lipid and protein oxidation. Treated and control samples were aerobically packed in low-density polyethylene bags for analysis of various parameters (pH, colour and odour score, peroxide, lipid and protein oxidation) during nine-day refrigerated storage study.

Findings

Results showed that BCEs had a good amount of TPC (4.4-7.4 mg gallic acid equivalents/g) and also DPPH scavenging activities (33.96-44.23 per cent), with WE and EHWE extracts showing highest reducing power and promising antioxidant capacity. Hence, BCEs (WE and EHWE) incorporated at 1.5 per cent into freshly minced pork meat was tested, compared to BHT (100 ppm) and control samples, in retarding lipid and protein oxidation during storage. In BCE-treated samples, thiobarbituric acid reacting substances, free fatty acids, peroxide, formation of protein carbonyls and off-odour or rancid odour development were lower than control and values were comparable with BHT. Incorporation of BCE did not negatively affect the colour of ground pork.

Originality/value

BCEs (WE and EHWE) at 1.5 per cent inhibited protein and lipid oxidation and it could be exploited commercially as an effective alternative in retarding oxidative deterioration of meat products.

Details

Nutrition & Food Science, vol. 48 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 16 January 2020

Juliane Barroso Leal, Juçara Barroso Leal, Joaline Barroso Portela Leal, Yan de Lima Borges, Maria Ivone Leal de Moura, Alfredo Anderson Teixeira-Araujo, Venilson Serafim da Costa and Ferdinando Oliveira Carvalho

This paper aims to verify the effect of 12 weeks of grape juice (GJ) consumption associated with aerobic exercise on the variation of the hypertensive elderly pressure.

Abstract

Purpose

This paper aims to verify the effect of 12 weeks of grape juice (GJ) consumption associated with aerobic exercise on the variation of the hypertensive elderly pressure.

Design/methodology/approach

A total of 45 hypertensive elderly of both sexes were distributed into: control group (CG, n = 10), exercise group (EG, n = 10), juice group (JG, n = 12) and juice and exercise group (JEG, n = 13). Blood pressure and heart rate were checked weekly before exercise in JG and JEG, and before and after intervention in all groups, with JG and JEG supplemented with 200 mL of GJ. Three weekly sessions of moderate walking were applied.

Findings

There was a reduction in EG, JG and JEG for systolic pressure and diastolic only for JG and JEG. The GJ consumption to the practice of aerobic exercise provided reductions in the arterial pressure of hypertensive, in addition to stabilization of the diastolic pressure.

Research limitations/implications

Although the objective of the study was to compare the effect and value of intervention with controls, the study had no intervention in food consumption, which could have led to more significant results. There was a limitation in the control drink, leading the study not to be blind, which may have impaired the results. However, it is probably not a bias, as the groups were divided by residence area, and therefore, had no direct contact with the other groups. Another limitation was that the sample size was still small, which would lead to more reliable results. Finally, although the existing limitations cannot be disregarded, the results of this research are very promising, especially when the objective is the effect of GJ and aerobic exercise on blood pressure, with the possibility of implementing supplemental GJ and the inclusion or not of exercise to the hypertensive elderly.

Originality/value

The paper deals with the benefits of GJ consumption associated with aerobic physical exercise on the blood pressure of elderly hypertensive patients. Considering that GJ along with physical exercise was enough to reduce the blood pressure of hypertensive elderly, this may be a new model to be used to reduce and/or control blood pressure, and GJ and the exercise to be part of the daily life of the population.

Details

Nutrition & Food Science , vol. 50 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Abstract

Subject area

Hospitality and Tourism.

Study level/applicability

Senior undergraduate level and graduate level.

Case overview

This case study charts out the development of a business plan for Ch’ulel Mendoza, a hypothetical all-villa resort nestled against the Andes Mountains, where guests enjoy luxurious wine-infused spa treatments. The business plan has to be comprehensive because it should become the basis of a turnkey project for potential investors. Ch’ulel Mendoza is surrounded by the lush vineyards of some of the most famous wine estates in Argentina. The spa, facilities and services pay homage to the wine-growing heritage of the region, promoting wine to its guests as both pleasurable for consumption and conducive to healthy living. The architectural design speaks directly to the vines themselves: the earth-covered spa is where guests soak up the healing nutrients in the vinotherapy and water treatments, much like the roots are nourished by the elements and water in the soil; the resort area embraces the outdoors with decks, open patios and pools where guests can bask in the sun and enjoy other natural elements, just like the grape plants themselves. Once it becomes operational, Ch’ulel Mendoza will symbolize a blend of wellness, recreation and the charm of the Latin American culture.

Expected learning outcomes

Develop a comprehensive business plan for a new business, understand the business environment, prepare a strengths, weaknesses, opportunities and weaknesses analysis, develop functional (marketing, finance, human resources, operations, etc.) plans and understand the opportunities and challenges in the new product development process.

Subject code

CSS: 12: Tourism and Hospitality.

Details

Emerald Emerging Markets Case Studies, vol. 7 no. 3
Type: Case Study
ISSN: 2045-0621

Keywords

Article
Publication date: 26 June 2018

Insha Kousar Kalem, Z.F. Bhat, Sunil Kumar and Reshan Mudiyanselage Jayawardena

The purpose of this study was to assess the preservative potential of Tinospora cordifolia as a novel natural preservative in muscle foods.

Abstract

Purpose

The purpose of this study was to assess the preservative potential of Tinospora cordifolia as a novel natural preservative in muscle foods.

Design/methodology/approach

Chevon sausages were used as a model system and were prepared by incorporating different levels of T. cordifolia, namely, T1 (0.25 per cent), T2 (0.50 per cent) and T3 (0.75 per cent), and assessed for lipid oxidative stability and storage quality under refrigerated (4 ± 10°C) conditions.

Findings

Lipid oxidative stability showed a significant improvement as the products incorporated with T. cordifolia exhibited significantly (p = 0.001) lower thiobarbituric acid reacting substances (mg malonaldehyde/kg) in comparison to control. A significant improvement was also observed in the microbial stability as T. cordifolia-incorporated products showed significantly lower values for total plate count (log cfu/g, p = 0.001), psychrophilic count (log cfu/g, p = 0.003), yeast and mould count (log cfu/g, p = 0.02) and free fatty acid (percentage of oleic acid, p = 0.01). Significantly higher scores were observed for various sensory parameters of the treated products during storage.

Originality/value

Tinospora cordifolia successfully improved the lipid oxidative and microbial stability of the model meat product and may be commercially exploited as a novel preservative in muscle foods.

Details

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

Keywords

Article
Publication date: 27 September 2011

Abel Duarte Alonso

Muscadine (Vitis Rotundifolia Michx.) is a native vine that grows wild and that is also cultivated in the Southern USA. Today, many wineries located in this region produce and…

Abstract

Purpose

Muscadine (Vitis Rotundifolia Michx.) is a native vine that grows wild and that is also cultivated in the Southern USA. Today, many wineries located in this region produce and sell wines made of muscadine grapes. While much of contemporary research focuses on the many health properties of muscadine grapes, very little is known of muscadine wines from an entrepreneurial or operational perspective, including muscadine wines' marketing potential. This paper aims to investigate these areas, examining some of the challenges that Southern winery operators face in successfully marketing muscadine wines.

Design/methodology/approach

Using telephone interviews (29), coupled with two face‐to‐face interviews, data were collected among 31 winery owners located in different Southern states.

Findings

More than one‐third of respondents (11) considered dealing with consumer snobbery as the main challenge their wineries faced. Operators of this group argued that there appears to be a stigma attached to muscadine wines, particularly among many consumers who consider muscadine wines as inferior to Vitis Vinifera wines. In addition, eight participants mentioned consumers' lack of knowledge of muscadine wines as their main challenge. The prevalence of these two main challenges clearly suggests the need for consumer education if any images of inferiority in muscadine wines are to be dispelled.

Research limitations/implications

The number of this study's participants (33) is limited and may not allow for making generalisations about muscadine winery operators.

Practical implications

The study explores a distinctive sector, namely, that of grapes and wines native to the Southern region. With growing interest in local products that, as in the case of muscadine grapes, also have a close association to healthy components (e.g. resveratrol, nutraceutical products), the study's findings may have important implications for the future marketing of muscadine wines and grapes.

Originality/value

To date muscadine wine entrepreneurship has received almost no attention from academic research, particularly as it relates to the areas of marketing, hospitality and tourism.

Details

British Food Journal, vol. 113 no. 10
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 25 September 2020

Natália Rohenkohl do Canto, Marilia Bonzanini Bossle, Luciana Marques Vieira and Marcia Dutra De Barcellos

This paper investigates how chain members collaborate to ensure the sustainability of supply chains through the social capital perspective.

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Abstract

Purpose

This paper investigates how chain members collaborate to ensure the sustainability of supply chains through the social capital perspective.

Design/methodology/approach

Following a case study design, three social capital mechanisms – reach, richness and receptivity – were used as a lens with two eco-innovative food companies and their respective supply chains in Southern Brazil. Data consisted of interviews and other sources of evidence obtained from multiple stakeholders.

Findings

Results highlight the importance of a managerial orientation for sustainability and that sustainable chains presuppose a network that is closely linked and with great affinity. Not only does the management of operations improve the green performance of companies for environmental benchmarking but it also expands to include the supply chain. Social capital mechanisms can encourage partners to develop strategic initiatives for sustainability, especially if managers share key drivers for adopting eco-innovations and overall chain sustainability.

Originality/value

The paper contributes to research on collaboration within sustainable supply chain management. Empirical data were gathered from different stakeholders in two food chains in a developing country. Through the lens of social capital mechanisms, the paper shows how different types of companies collaborate in their supply chain for sustainability.

Details

Management of Environmental Quality: An International Journal, vol. 32 no. 6
Type: Research Article
ISSN: 1477-7835

Keywords

Article
Publication date: 11 September 2017

Sabahu Noor, Z.F. Bhat, Sunil Kumar and Insha Kousar

This paper aims to explore the possibility of utilization of Asparagus racemosus as a novel natural preservative in meat products.

Abstract

Purpose

This paper aims to explore the possibility of utilization of Asparagus racemosus as a novel natural preservative in meat products.

Design/methodology/approach

Chevon sausages were used as a study model and prepared by incorporating different levels of A. racemosus, namely, T1 (0.25 per cent), T2 (0.50 per cent) and T3 (0.75 per cent) and were vacuum packaged and assessed for various lipid oxidative stability and storage quality parameters under refrigerated (4  ±  1°C) conditions.

Findings

Significantly (p < 0.05) lower thiobarbituric acid reacting substances (mg malonaldehyde/kg) values were observed for the products containing A. racemosus in comparison to control indicating a significant effect on the lipid oxidative stability. The products containing A. racemosus also showed significantly (p < 0.05) lower values for various microbiological characteristics like total plate count (log cfu/g), psychrophilic count (log cfu/g), yeast and mould count (log cfu/g), anaerobic count (log cfu/g) and free fatty acid (% oleic acid) values indicating the antimicrobial and antifungal properties of A. racemosus. No significant (p > 0.05) effect was observed on the cooking yield and moisture content of the products. Significantly (p < 0.05) higher scores were observed for various sensory parameters of the products containing A. racemosus during the entire period of storage.

Originality/value

A. racemosus successfully improved the lipid oxidative stability and storage quality of the model meat product without compromising the sensorial characteristics and has a great potential as a novel natural preservative in muscle foods.

Details

Nutrition & Food Science, vol. 47 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

1 – 10 of 335