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Article
Publication date: 9 October 2018

Willard Navicha, Yufei Hua, Kingsley George Masamba, Xiangzhen Kong and Caimeng Zhang

The purpose of this paper is to evaluate the changes in descriptive sensory properties and overall consumer acceptability of soymilk prepared from roasted soybeans.

Abstract

Purpose

The purpose of this paper is to evaluate the changes in descriptive sensory properties and overall consumer acceptability of soymilk prepared from roasted soybeans.

Design/methodology/approach

In total, 12 purposively selected post graduate students majoring in Food Science conducted descriptive sensory analysis after being trained for 18 h in sensory analysis, while 75 untrained students conducted consumer acceptability test of soymilk prepared by roasting soybeans at a temperature of 110°C for 20, 40, 60, 80 and 100 min and at 120°C for 20 min.

Findings

Results have revealed that roasting soybeans improved sensory properties by significantly (p<0.05) decreasing the objectionable green, beany flavours and increasing sweet taste, viscosity and roasted flavour. Furthermore, results from the principal component analysis revealed that aroma and sweet taste were the most critical sensory attributes. In addition, it was found out that soymilk samples prepared by roasting soybeans at 110°C for 40 and 60 min and at 120°C for 20 min were significantly more acceptable than the control soymilk.

Research limitations/implications

The participants in this study were from one locality and predominantly soybean consuming community and therefore there is need to conduct the study in a different locality in order to validate the study findings.

Practical implications

The study can assist small scale processors that might not have access to lipoxygenase-free soybeans and other technologies for improving the quality of soymilk.

Social implications

The study can be used as a guide for connecting the food processers with the external world of consumption.

Originality/value

For the first time, the study findings have demonstrated that controlled soybean roasting can be a useful strategy for improving soymilk sensory properties and consumer acceptability. The findings in this study can be usefully used in the quality control of soy bean-based products.

Details

British Food Journal, vol. 120 no. 12
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 25 October 2021

Deepika Kathuria, Anju K. Dhiman, Surekha Attri and Manish Kumar

Soybean is potentially a rich source of protein and lipids along with isoflavone. However, the use of soybean is limited due to presence of anti-nutritional factors such as…

Abstract

Purpose

Soybean is potentially a rich source of protein and lipids along with isoflavone. However, the use of soybean is limited due to presence of anti-nutritional factors such as trypsin inhibitor, phytic acid, etc. The present study aimed at evaluation of Harit soya seeds of different treatments such as soaking, dehulling, germination, soaking+roasting and roasting in order to enhance its quality.

Design/methodology/approach

Harit soya seeds were utilized were soaked overnight and subjected for dehulling, germination for 3 days as well as roasting followed by drying to obtain fine powder for quality evaluation.

Findings

Dehulling and germination produce significant (p < 0.01) increase in protein, crude fiber, total chlorophyll, ascorbic acid, total phenolics, flavonoids and isoflavones while fat was decreased non-significantly. The highest value of 12.4 mg/100g, 5.3 mgGAE/g and 6.6 mg/g for ascorbic acid, total phenolics and isoflavones was found in germinated seeds. Also, the effect of soaking, roasting and their combination lead to significant decrease in the functional properties of the seeds. Anti-nutritional factors were significantly (p < 0.01) reduced in all forms of treated seeds while pepsin and trysin digestibility was enhanced during soaking, dehulling and germination with maximum value of 72.6 and 25.8%, respectively in germinated seeds.

Originality/value

Improvement in quality of evergreen variety of soybean using cost effective traditional methods

Details

Nutrition & Food Science , vol. 52 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 2 October 2017

Sireerat Laodheerasiri and Nirasha Horana Pathirage

The purpose of this paper is to determine the antimicrobial compounds extracted from various types of soybean materials; raw soybean, soybean flour and roasted soybean. Bacteria…

Abstract

Purpose

The purpose of this paper is to determine the antimicrobial compounds extracted from various types of soybean materials; raw soybean, soybean flour and roasted soybean. Bacteria growth inhibition was tested in E.coli and S. aureus by disk diffusion method. Efficiency of antimicrobial activities were compared among the extracted solution.

Design/methodology/approach

Soybean (Glycine max) isoflavones contain the ability to inhibit the growth of many strains of microorganisms. The solid-liquid extraction, ethanol-hexane extraction, was modified to isolate the inhibitory compounds from the three different types of soybean materials. All crude extracts at various concentrations performed under different extracted solutions (75, 50, 25, 12.5, 6.25 and 3.125 percent) were tested with E. coli. and S. aureus to determine the antimicrobial activities and the minimum inhibition concentration (MIC). Disk diffusion method was chosen to study the antimicrobial activity of isoflavones.

Findings

Soybean flour extract inhibited the growth of E. coli and S. aureus more effective than roasted soybean and raw soybean, respectively. The MIC of inhibitory compounds extracted from soybean flour was 6.25 percent (0.031 mg/ml), roasted soybean was 25 percent (0.125 mg/ml) and raw soybean was 50 percent (0.250 mg/ml). Crude extracts of soybean flour and roasted soybean showed better results than raw soybean. All the three of extracted soybeans inhibited the growth of E. coli better than S. aureus.

Originality/value

Ethanol-hexane extraction was successfully used to isolate the antimicrobial compounds from raw soybean, soybean flour and roasted soybean. Comparison of antimicrobial activity showed that soybean flour contained the highest inhibition activity.

Details

British Food Journal, vol. 119 no. 10
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 13 June 2009

Neelam Khetarpaul and Rajni Goyal

The unleavened bread called chapatis in vernacular language is the staple food of the majority of North Indians, which is generally prepared from wheat flour. However, wheat flour…

1181

Abstract

Purpose

The unleavened bread called chapatis in vernacular language is the staple food of the majority of North Indians, which is generally prepared from wheat flour. However, wheat flour contains 8‐12 per cent protein and is limited in essential amino acid, so supplementation of partially defatted soy dhal, sorghum, rice, maize and pearl millet will help to improve the nutritional value of chapatis. This paper seeks to address this issue.

Design/methodology/approach

Wheat flour was supplemented with salt‐treated partially defatted soy dhal, sorghum, rice, maize and pearl millet (50:10:10:10:10:10). Different salt treatments were given to soy dhal so as to remove its typical beany flavour. Different flours were mixed with water to form dough followed by preparation of chapati on flat iron plates. These were further evaluated organoleptically by the panel of judges. On the basis of organoleptic evaluation the best combination was used for nutritional evaluation.

Findings

Organoleptic evaluation of developed chapatis indicated that they were acceptable in terms of various sensory parameters. Nutritional evaluation of unprocessed composite flour, wheat flour chapatis and composite flour chapatis revealed a significant increase in moisture and protein content and non‐significant difference in ash and crude fibre contents of composite flour chapatis when compared with unprocessed composite flour and wheat flour chapatis. Various processing methods, namely dough making and roasting involved in chapati making, significantly (p<0.05) reduced the phytic (11 per cent) and polyphenol (64 per cent) content of the developed chapati compared with unprocessed composite flour. As a result the protein and starch digestibility of the developed chapati was improved over the unprocessed composite flour.

Research limitations/implications

Further research is needed regarding the amino acid profile of the developed chapati.

Practical implications

Wheat flour should be supplemented with different cereals so as to improve the nutritional value.

Originality/value

The paper has significance in terms of improving the nutritional quality of the chapati without any extra input of time and energy.

Details

British Food Journal, vol. 111 no. 6
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 14 October 2019

Devendra Pratap, Kumaresh Halder, Rakhi Singh, Ankur Ojha, Thangalakshmi S. and Savita Rani

Although milk is considered a vital source of nutrition for the livelihood, as the beginning of civilization, its antioxidant potential is required to be improved. This paper aims…

Abstract

Purpose

Although milk is considered a vital source of nutrition for the livelihood, as the beginning of civilization, its antioxidant potential is required to be improved. This paper aims to increase antioxidant activities in milk and soy milk (Glycine max L.) has been found as a good compatible source. Hence, the present work was planned to investigate the impact of blending of different proportions of soy milk with standardized milk (i.e. 50 per cent soy milk with 50 per cent standardized milk, 60 per cent soy milk with 40 per cent standardized milk, 70 per cent soy milk with 30 per cent standardized milk and 100 per cent standardized milk as control sample) on antioxidant properties and sensory attributes of the blends.

Design/methodology/approach

Antioxidant properties of the blends were determined in terms of 2,2-diphenyl-1-picrylhydrazyl, ferric reducing antioxidant power and total phenol content. Sensory evaluation was carried out using a nine-point hedonic scale based on four selected quality attributes (i.e. smell, taste, color and appearance and mouthfeel) and ranked for their quality traits by fuzzy modeling.

Findings

A blend containing 70 per cent soy milk with 30 per cent standardized milk showed the highest antioxidant activities as compared to control milk sample (p <0.05). Blend of 50 per cent soy milk with 50 per cent standardized milk was found most acceptable on the basis of sensory analysis and its antioxidant activities were also appreciable as compared to control milk sample (p <0.05). Smell, taste, color and appearance and mouthfeel influenced the acceptability of formulated milk samples in decreasing order of significance (p <0.05).

Originality/value

The present attempt has been made to formulate liquid milk by mixing standardized milk and soy milk, in which enhancement in the antioxidant activities of standardized milk and masking of off-flavor of soy milk is done. It is not done before and it may improve the nutritional and commercial value of the milk. Further, fuzzy modeling used for choosing appropriate blend in terms of sensory scores is also found as a novel approach.

Details

Nutrition & Food Science , vol. 50 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 11 September 2007

Allison Duke and Charla Long

The purpose of this paper is two‐fold. First, a case study is presented that examines a model of agricultural development created by Healing Hands International (HHI) as one…

1606

Abstract

Purpose

The purpose of this paper is two‐fold. First, a case study is presented that examines a model of agricultural development created by Healing Hands International (HHI) as one answer to the United Nations' Food and Agriculture Organization call to reduce world hunger in half by 2015. Second, the study of HHI's agricultural model is used to identify some of the variables that might predict success in achieving sustainable agricultural systems in developing communities around the world. Specifically, training and establishing trust through social networks are explored as potential indicators in which HHI and other non‐governmental organizations (NGOs) can better determine whether they are meeting the goal of making trade work for the poor.

Design/methodology/approach

A case study of HHI's agricultural program is conducted as a means to identify success criteria for similar programs designed to establish economic viability in developing countries.

Findings

HHI has received global attention for its success in establishing long‐term economic viability in impoverished communities. Through the examination of their four‐step approach to agricultural development, two variables were identified as potential indicators of success that may generalize to similar programs: training and establishing trust through social networks.

Originality/value

There are currently over 40,000 NGOs operating to develop sustained economic viability for developing countries; however, a state of crisis continues to exist. As such, identifying predictors of success is essential for ensuring the successful implementation of similar programs and providing evidence that can result in greater financial support.

Details

Management Decision, vol. 45 no. 8
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 9 February 2015

Ezekiel Olufunke Oluseyi and Oyesiku Morenike Temitayo

– This paper aims to focus on the effect of fermentation, roasting and germination on tamarind seed flour.

Abstract

Purpose

This paper aims to focus on the effect of fermentation, roasting and germination on tamarind seed flour.

Design/methodology/approach

Tamarind seeds were treated using three different methods, namely, fermentation, roasting and germination. Fermentation was allowed for four days, roasting was carried out at 180°C at three time regimens of 10, 15 and 20 min and germination was done at 10, 15 and 20 days. Samples were analysed at intervals for proximate composition, antinutritional factors and functional properties using standard methods.

Findings

Protein, crude fat, crude fibre contents and pH increased significantly (p < 0.05) as fermentation progressed, while ash content and carbohydrate reduced. Protein, crude fat and crude fibre contents decreased significantly (p < 0.05) as roasting progressed, while ash content, carbohydrate and pH increased. Protein and crude fibre contents increased significantly (p < 0.05) as germination progressed, while crude fat, ash content, carbohydrate and pH reduced. Processing resulted in significant reduction of the phytate, tannin and trypsin inhibitor.

Practical implications

Processed seeds of Tamarindus indica can be used to fortify local cereals (millet/maize) with other ingredients to produce complementary foods with good nutritional quality and consequently as a tool for meeting community nutritional needs.

Originality/value

The paper has demonstrated effect of fermentation, roasting and germination in enhancement of functional and nutritional properties of tamarind seed flour for utilization as a food ingredient.

Details

Nutrition & Food Science, vol. 45 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 18 April 2009

Oluwole Steve Ijarotimi and Taiwo Ruth Esho

This paper seeks to demonstrate that the nutritional composition of bambara groundnut (BG) seeds can be influenced when subjected to three traditional processing methods (i.e…

1768

Abstract

Purpose

This paper seeks to demonstrate that the nutritional composition of bambara groundnut (BG) seeds can be influenced when subjected to three traditional processing methods (i.e. fermentation, roasting, and germination).

Design/methodology/approach

Proximate, minerals, amino acids and antinutritional factors of each of the processed food samples were investigated using AOAC methods. The results of the study were as follows: For the proximate analysis, moisture content ranged between: 1.50‐2.16 g/100 g; fat 6.02‐6.57 g/100 g; protein 20.00‐20.49 g/100 g; ash 1.17‐3.46 g/100 g; carbohydrate 65.82‐68.74 g/100 g and energy 400.2‐412.18kcal. For the minerals composition, calcium ranged between 14.12± 0.01‐18.26±0.01 mg/100 g, potassium 57.61±0.01‐80.62±0.02 mg/100 g, magnesium 50.47± 0.01‐69.34±0.02 mg/100 g, sodium 19.05±0.01‐25.97±0.01 mg/100 g, iron 0.15±0.01‐0.48± 0.01 mg/100 g, selenium 0.00±0.00‐0.21±0.01 mg/100 g and phosphorus 164.73±0.01‐187.13± 0.01 mg/100 g, while the Ca/P and Na/K ratios of the food samples range between 0.10±0.01‐0.19±0.01 and 0.30±0.01‐0.35±0.01 respectively. The total amino acid and percentage of total essential amino acid for children and adults were higher in germinated BG seed flour than fermented and roasted BG flour respectively.

Findings

The findings were that the antinutritional content of fermented bambara groundnut seed flour was low compared with germinated and roasted bambara groundnut seed flour.

Research limitations/implications

The protein content of fermented bambara groundnut flour was higher and also had a low level of antinutritional factors compared with other processed bambara groundnut flour. In view of these, further study may be conducted to establish the suitability of incorporating the fermented bambara groundnut flour into weaning food.

Originality/value

The study showed that these traditional processing methods, that is, fermentation, germination and roasting, influenced the nutritional composition of bambara groundnut seeds.

Details

British Food Journal, vol. 111 no. 4
Type: Research Article
ISSN: 0007-070X

Keywords

Article
Publication date: 27 March 2009

B.I.O. Ade‐Omowaye, A.M. Adegbite, B.R. Adetunji and O.O. Oladunmoye

This paper focuses on the effect of different pretreatments on some properties of tigernut, an underutilized crop in Nigeria with the aim of widening its utilization in the…

381

Abstract

Purpose

This paper focuses on the effect of different pretreatments on some properties of tigernut, an underutilized crop in Nigeria with the aim of widening its utilization in the country.

Design/methodology/approach

Tigernuts were subjected to various pretreatments such as fermentation, germination, pregelatinization and roasting before drying at 50 ± 2 C for 48 h in locally fabricated cabinet drier and milling in commercial plate mill to produce meal which passed through 30 mm pore‐sized sieve. Pretreated and untreated tigernut meals were analyzed using methods reported in the literature for chemical composition, physicochemical and functional properties.

Findings

Protein content of the meals ranged from 2.79 ± 0.01 to 3.65 ± 0.02 per cent with sample from fermented tigernut having the highest value and those from roasted ones having the least value. There were slight variations in the crude fat, fiber and ash contents of the resultant meals after pretreatment. There were 10 and 14 per cent enhancement in the ascorbic acid contents of fermented and germinated meals respectively. Titratable acidity, pH and water absorption capacity were affected by pretreatment in this study. Bulk density varied slightly after pretreatment. Germination, roasting and pregelatinization resulted in marked decrease in peak viscosity of the samples. The emulsion capacity ranged from 48.4 to 56 per cent with the untreated sample having the highest value and meals from roasted sample had the least value. Foaming capacity was improved by the pretreatments with the exception of roasting which reduced it from 2.15 to 1.18 per cent.

Originality/value

The paper has demonstrated the effect of pretreatments on tigernut meals and its potential applications in various food formulation and development, e.g. weaning foods, baked goods, beverage products, etc.

Details

Nutrition & Food Science, vol. 39 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 11 July 2016

Dipika Agrahar-Murugkar, Aiman Zaidi and Chetan Gupta

Development of new products rich in nutrients required for growth and development along with acceptability can contribute in alleviating malnutrition. Laddoo, a traditional sweet…

Abstract

Purpose

Development of new products rich in nutrients required for growth and development along with acceptability can contribute in alleviating malnutrition. Laddoo, a traditional sweet, is well-accepted by people at large. However, traditional laddoos contain one or two food groups – sugar and saturated fat, which are not healthy. The aim of this research was to formulate a nutritious laddoo using different food groups and to study its nutritional, functional, textural and sensory profile.

Design/methodology/approach

Composite flour laddoo (TL) was formulated using a mix of cereals, sprouted legumes, malted millets, dairy ingredients, fruit, oil and jaggery and evaluated for particle size, colour, texture, nutritional, functional and sensory evaluation and compared with traditional wheat (CL-1) and chickpea (CL-2) flour laddoos (CL).

Findings

The TL’s were significantly softer in texture compared to CLs, resulting in ease in biting, chewing and swallowing. The nutritional quality of TL was significantly higher in terms of protein (24.6 g/100 g), fibre (3.8 g/100 g), iron (10.4 mg/100 g) and phosphorus (287.5 mg/100 g). The functional quality of TL was also higher in terms of phenolics (123.0 gallic acid equivalent mg/100 g), flavonoids (6.9 quercitin equivalent mg/100 g) and antioxidant activity (62.6 per cent radical-scavenging activity). Organoleptic evaluation also showed higher acceptability (eight) of TL against six for CL-1 and seven for CL-2.

Originality/value

Fortification of food products to enhance the nutritive value has become the major focus of the researchers in the field of new product development, owing to the consumer need for products having high nutritive and sensorial properties. Malnutrition is a serious matter of concern among the population of India, and the present situation demands development of products that are rich in nutrients required for growth and development and readily acceptable. Traditional laddoos made using a single ingredient does not provide sufficient nutrients, and sugar and saturated fat used for binding are not healthy options. No work on using composite flour along with sprouting/malting, jaggery and unsaturated fat to prepare laddoos with its nutritional, functional and textural properties has been reported.

Details

Nutrition & Food Science, vol. 46 no. 4
Type: Research Article
ISSN: 0034-6659

Keywords

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