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Article
Publication date: 26 January 2010

L.E. Yahaya, O.M. Aliyu, L.A. Hammed and S.O. Aroyeun

The purpose of this paper is to determine the physicochemical characteristics of yellow and red apples cultivars of cashew. This is with a view to harnessing the quality…

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Abstract

Purpose

The purpose of this paper is to determine the physicochemical characteristics of yellow and red apples cultivars of cashew. This is with a view to harnessing the quality attributes of the different cultivars of cashew. Parameters investigated include pH, refractive index, specific gravity, vitamin C content, juice astringency, chlorophyll and juice yield.

Design/methodology/approach

The methods of the Association of Official Analytical Chemists (AOAC) are employed in assaying the physicochemical properties, while the astringency is determined spectrophotometrically according to standard methods.

Findings

Results showed that percentage juice yield increases linearly with maturity for both cultivars. A maximum of 79.5 per cent is obtained for the yellow apple cultivars, while 74.1 per cent juice yield is obtained in the red apple cultivar. The pH ranged from 3.73‐4.5 and 3.64‐4.55 for red and yellow apple cultivars, respectively, with a marked fall between seven and eight weeks after pollination (WAPo). Specific gravity and refractive index are of the order 0.999‐1.007 and 1.34‐1.89 for both selected samples. Highest refractive index is obtained in red and yellow cultivars at seven and eight WAPo. The changes in ascorbic acid followed a linear pattern and the maximum values of 249.5 mg/100 ml and 185.5 mg/100 ml are obtained for yellow and red apple cultivars, respectively. Meanwhile, the juice astringency level decreased steadily with maturity and at the ninth WAPo, values obtained are 0.47 and 0.86 mg/100 ml tannin for yellow and red apple cultivars, respectively. Generally, pH, astringency, refractive index, juice content, ascorbic acid and chlorophyll contents showed marked variations between six and eight WAPo, confirming physiological maturity and ripening in the crop species.

Originality/value

Cashew farmers and industrialists will know the best time to harvest the crop when the quality is at its peak.

Details

British Food Journal, vol. 112 no. 1
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 1 November 2011

Esther Gyedu‐Akoto

The purpose of this paper is to show how to develop useful products from cashew by‐products, to help expand the income base of cashew farmers in the Savanna area.

545

Abstract

Purpose

The purpose of this paper is to show how to develop useful products from cashew by‐products, to help expand the income base of cashew farmers in the Savanna area.

Design/methodology/approach

Investigations into the utilization of some by‐products from cashew were carried out using the apples and gum from the cashew tree. The apples were processed into clarified and non‐clarified juices and jam. Cashew gum, a by‐product of the cashew tree, was used in the development of baked doughnuts as a fat replacer. The gum was used at five different levels in the preparation of the products – 0, 20, 40, 60 and 80 per cent of fat used.

Findings

The average yield of cashew juice after extraction with a screw press ranged from 53.0 to 54.6 per cent. Results on chemical and sensory analyses of the two juices showed that clarification with Polyvinylpyrrolidone reduced both the chemical and sensory quality of the juices. Protein content, total sugar concentration and K content reduced from 0.548, 58.23 and 4.23 per cent to 0.443, 18.50 and 3.32 per cent, respectively. Fat contents of the baked doughnuts were 16.72, 14.68, 8.10, 8.24 and 5.82 per cent for products with 0, 20, 40, 60 and 80 per cent cashew gum, respectively. Results of sensory analysis showed that decreasing the fat content reduced the flavour, moistness and consumer acceptance of the products. However, there was no significant difference between the products. Therefore, it is suggested that cashew gum can replace fat in baked dough nuts up to 20 per cent.

Originality/value

These findings are important to cashew farmers, processors, nutritionists and consumers as a whole.

Details

Nutrition & Food Science, vol. 41 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 29 July 2022

Ashpreet Sharma, Lalit Mohan Kathuria and Tanveen Kaur

Given the dominant share of India in global production of fruits and vegetables, this paper intends to analyze the export competitiveness of India and other major food exporters…

Abstract

Purpose

Given the dominant share of India in global production of fruits and vegetables, this paper intends to analyze the export competitiveness of India and other major food exporters in the world trade. The purpose of this study is to examine export structure, substitutability and complementarity of selected fresh and processed fruits and vegetables of top ten food exporters for the period 2010-20.

Design/methodology/approach

Balassa’s (1965) revealed comparative advantage (RCA) index was used to measure RCA indices of selected fruits and vegetables under study. Also, revealed symmetric comparative advantage (RSCA) and normalized RCA (NRCA) indices have been calculated. Further, Spearman rank correlation coefficients were computed to analyze changes over the study period for India and other competing countries. The export data have been sourced from UN Comtrade, an electronic database of United Nations, as well as World Trade Statistical Review, a database of World Trade Organization. The analysis was undertaken at Harmonized System (HS) four-digit classification for the period 2010-20.

Findings

The results disclosed an improvement in India’s comparative advantage over the period of 2010-20 in HS 07 product category, whereas the advantage ceded to other competitive nations in HS 08 product category. Further, Spearman rank correlation coefficients revealed that India faces competition from countries like China, Indonesia, Brazil, Thailand, Argentina and European Union for HS 07 product category, while countries like Mexico, Indonesia, Brazil and Thailandare the major competitors of India in HS 08 product category.

Originality/value

The paper expands the existing agricultural trade literature in three ways. First, it is one of the very few studies that have analyzed RCA for Indian fresh and processed fruits and vegetables using three different types of indices, namely, Balassa’s RCA, RSCA and NRCA. Second, the authors provide a number of comparisons related to RCA for Indian fruits and vegetables with other top food exporters in the world for a period of 10 years (2010-20). Third, the authors contribute to agricultural trade literature by assessing the substitutability or complementarity of India in the export of fruits and vegetables with other competing nations by using Spearman rank correlation coefficients.

Details

Competitiveness Review: An International Business Journal , vol. 33 no. 6
Type: Research Article
ISSN: 1059-5422

Keywords

Article
Publication date: 1 February 2004

S.O. Aroyeun

Cashew apple was used as a nutritional additive in the production of yogurt. The yogurt so produced (CAY‐A) had a higher vitamin C content of 53.70g/100ml than both samples B and…

678

Abstract

Cashew apple was used as a nutritional additive in the production of yogurt. The yogurt so produced (CAY‐A) had a higher vitamin C content of 53.70g/100ml than both samples B and C with values 14.1/100ml and 19.2g/100ml of vitamin C respectively. The cashew apple fortified yogurt was evaluated for physicochemical parameters like pH, refractive index, dpecific gravity, titratable acidity, ash, moisture, protein and fat and the values 4.10 (pH), 20° Brix soluble solid content, specific gravity 1.023, titratable acidity (0.78g/100ml lactic acid), 0.84 per cent ash, 77.0 per cent moisture, 3.22 per cent protein and 3.2 per cent fat were obtained. The three yogurts produced were presented to ten regular tasters of yogurt for sensory evaluations using Fan Milk yogurt as the reference sample C. Assessors were asked to identify the odd sample. This method was used to determine if ingredient substitution or some other change in the manufacturing process could result in a detectable difference in products. The result obtained indicated that the yogurt into which cashew apple had been added compared favorably with the reference sample in all the attributes evaluated and there was no significant difference at p ≤ 0.05.

Details

Nutrition & Food Science, vol. 34 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 27 January 2021

Esther Gyedu-Akoto, Eric Kumi Asare, Stephen Yaw Opoku, Abu Mustapha Dadzie and Emmanuel Ofosu-Agyei

Roasted coffee provides a complex blend of different flavours which produce a range of sensory qualities. With the development of protocols for the production of fresh juices…

Abstract

Purpose

Roasted coffee provides a complex blend of different flavours which produce a range of sensory qualities. With the development of protocols for the production of fresh juices, jams and marmalades from cocoa and cashew pulp juices at Cocoa Research Institute of Ghana, this paper aims to study the effects of roasted coffee powder on fermented cocoa and cashew juices to diversify the uses of these two juices.

Design/methodology/approach

Cocoa and cashew juices were fermented with the incorporation of 2% roasted coffee powder using Saccharomyces cerevisiae yeast starter. The fermenting juices were monitored by measuring pH, temperature, specific gravity and titratable acidity. At the end of the fermentation, the juices were poured into clean, sterilized containers to mature. They were then analysed for their physicochemical, microbiological and sensory qualities. These were repeated with cocoa and cashew juices without coffee powder to determine the effects of the roasted coffee on the fermented juices.

Findings

The addition of roasted coffee powder to cocoa and cashew juices did not have any significant effect on the fermentation performance of the juices. Three out of the four juices took a total of 13 days to complete fermentation with an average final specific gravity of 0.99. The quality of the fermented juices was not compromised by microbial activities. However, the addition of roasted coffee powder reduced the alcohol content of fermented cocoa juice from 9.0 to 5.0% and that of cashew from 11.0% to 7.5%. Sensory analysis using untrained panellists, who were ordinary consumers, showed significant differences among the four fermented juices in terms of appearance, taste and aroma. Their mean scores for coffee aroma ranged from 0.3 to 2.0 with coffee incorporated fermented juices having higher rankings.

Originality/value

These findings have shown the possibility of processing cocoa and cashew juices, which under normal circumstances would have been discarded along their value chains, into coffee-flavoured wines. They are also important to cocoa, cashew and coffee farmers, processors, as well as wine enthusiasts.

Details

Nutrition & Food Science , vol. 51 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 13 July 2010

S.J. Ojolo, O. Damisa, J.I. Orisaleye and C. Ogbonnaya

The purpose of this paper is to investigate the physical and mechanical characteristics of the roasted cashew nut during fracture, by subjecting the nut to varying impact load…

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Abstract

Purpose

The purpose of this paper is to investigate the physical and mechanical characteristics of the roasted cashew nut during fracture, by subjecting the nut to varying impact load tests at different orientations to ascertain the critical impact load that fractures the shell without damaging the kernel within. This load value was correlated with other parameters; shell/kernel moisture content level, average nut mass, to determine the required projection velocity to achieve this force. This projection velocity is the critical factor in sizing and design of the optimum configurations of the shelling impeller.

Design/methodology/approach

Mechanical properties of roasted cashew nut were first determined to know their fracture points. Each component of the shelling machine was designed. The components were assembled and the machine was tested for performance.

Findings

Machine throughput capacity was determined as 15.57 kg/h; shelling efficiency was 95 per cent; and whole kernel recovery was 70 per cent.

Practical implications

The efficiency in terms of whole kernel recovery could be improved by improving the pretreatment measures on the nuts.

Originality/value

The paper presents a machine which is affordable to peasant farmers and requires little or no training for operation and maintenance. The advantage of reduced unit cost can be derived from large‐scale commercial production of this sheller.

Details

Journal of Engineering, Design and Technology, vol. 8 no. 2
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 24 April 2020

Richard Kwasi Bannor, Helena Oppong-Kyeremeh, Steffen Abele, Frank Osei Tutu, Samual Kwabena Chaa Kyire and Dickson Agyina

The unavailability and inadequate use of cashew seedlings for propagation are part of the challenges facing the cashew sub-sector in Ghana. However, promoting investment into…

Abstract

Purpose

The unavailability and inadequate use of cashew seedlings for propagation are part of the challenges facing the cashew sub-sector in Ghana. However, promoting investment into cashew seedling production should be based on the analysis of the profitability and viability of such a venture as well as the respective determinants of farmers' demand for the planting material.

Design/methodology/approach

This study used gross margin/contribution, net margin and contribution ratios to analyse the profitability of cashew seedling production under four different business models. Also, the determinants of choice of planting material for cashew plantation among farmers was analysed via a multinomial probit regression.

Findings

The study revealed that cashew seedling production is profitable with a gross margin of $8,474, $2,242, $1,616 and $1,797 and contribution to sales of 31–53% for the various business models. The positive determinants of the use of cashew seedlings were off-farm job participation and extension contact, whereas farm size and age of plantation negatively influenced the use of seedlings. Land acquisition method also influenced the use of both seedlings and seeds negatively.

Practical implications

The findings provide empirical evidence of the viability and profitability of cashew seedling production as a viable business venture and off-farm opportunity in rural areas. The information from the study will help major stakeholders in cashew production to understand the type of farmers who use seeds and seedlings as well as the reasons for using or otherwise.

Originality/value

Significant research in the cashew value chain had focussed on the profitability of cashew plantation with little literature on profitability and viability analysis of cashew seedling production. Similarly, this study provides a significant value chain job opportunity as well as literature on the choice of cashew seedlings among current and prospective end-users.

Details

World Journal of Entrepreneurship, Management and Sustainable Development, vol. 16 no. 2
Type: Research Article
ISSN: 2042-5961

Keywords

Article
Publication date: 6 May 2014

Ishmael Owiredu, Damian Laryea and John Barimah

– The aim of this paper is to promote the utilization and diversification of cashew nuts through its use as a substitute for wheat flour in biscuit production.

426

Abstract

Purpose

The aim of this paper is to promote the utilization and diversification of cashew nuts through its use as a substitute for wheat flour in biscuit production.

Design/methodology/approach

Wheat flour was substituted with cashew nut flour (CNF) at levels of 0, 20, 30 and 40 percent in the production of biscuit. The products obtained were subjected to proximate, mineral and sensory analysis.

Findings

There was a significant increase in protein and fat contents from 7.75 and 22.11 percent to 12.89 and 32.11 percent, respectively, when CNF increased, whiles carbohydrate decreased from 66.67 to 48.04 percent. A significant increase in magnesium (27.93-97.03 mg/100 g), sodium (198.11-228.02 mg/100 g), phosphorus (55.90-149.00 mg/100 g), potassium (290.40-990.00 mg/100 g), zinc (0.72-2.00 mg/100 g) and iron (0.28-1.00 mg/100 g) was also observed as CNF increased. Sensory analysis revealed that there was no significant difference (p>0.05) between the 20 and 30 percent substituted samples, in terms of overall acceptability. Therefore, wheat flour could be substituted with CNF up to 30 percent in the production of biscuit.

Originality/value

This study was done to ascertain the potential use of CNF as a substitute for wheat flour and a nutrient enrichment in biscuit production, in order to diversify its use; since it still remains an underutilized raw material in Ghana.

Details

Nutrition & Food Science, vol. 44 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 1 July 2022

Raka Saxena, Anjani Kumar, Ritambhara Singh, Ranjit Kumar Paul, M.S. Raman, Rohit Kumar, Mohd Arshad Khan and Priyanka Agarwal

The present study provides evidence on export advantages of horticultural commodities based on competitiveness, trade balance and seasonality dimensions.

Abstract

Purpose

The present study provides evidence on export advantages of horticultural commodities based on competitiveness, trade balance and seasonality dimensions.

Design/methodology/approach

The study delineated horticultural commodities in terms of comparative advantage, examined temporal shifts in export advantages (mapping) and estimated seasonality. Product mapping was carried out using the Revealed Symmetric Comparative Advantage (RSCA) and Trade Balance Index (TBI). Seasonal advantages were examined through a graphical approach along with the objective tests, namely, modified QS-test (QS), Friedman-test (FT) and using a seasonal dummy.

Findings

Cucumbers/gherkins, onions, preserved vegetables, fresh grapes, shelled cashew nuts, guavas, mangoes, and spices emerged as the most favorable horticultural products. India has a strong seasonal advantage in dried onions, cucumber/gherkins, shelled cashew nut, dried capsicum, coriander, cumin, and turmeric. The untapped potential in horticulture can be addressed by handling the trade barriers effectively, particularly the sanitary and phytosanitary issues, affecting the exports. Proper policies must be enacted to facilitate the investment in advanced agricultural technologies and logistics to ensure the desired quality and cost effectiveness.

Research limitations/implications

Commodity-specific studies on value chain analysis would provide valuable insights into the issues hindering exports and realizing the untapped export potential.

Originality/value

There is no holistic and recent study illustrating the horticulture export advantages covering a large number of commodities in the Indian context. The study would be helpful to the stakeholders for drawing useful policy implications.

Details

Journal of Agribusiness in Developing and Emerging Economies, vol. 14 no. 2
Type: Research Article
ISSN: 2044-0839

Keywords

Article
Publication date: 1 February 1991

B. Beharrell and J.H. MacFie

The apparent conflict between what is scientifically known and whatis perceived concerning food acceptability by consumers provides aninteresting paradox. Some of the leading…

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Abstract

The apparent conflict between what is scientifically known and what is perceived concerning food acceptability by consumers provides an interesting paradox. Some of the leading international contributions concerned with organic farming system food products are thus reviewed in the light of consumer beliefs and attitudes. It is concluded that, in a market economy, consumer opinion will gradually prevail and that agricultural farming systems will have to adjust to more extensive lower input farming approaches.

Details

British Food Journal, vol. 93 no. 2
Type: Research Article
ISSN: 0007-070X

Keywords

1 – 10 of 64