Search results

1 – 10 of over 5000
To view the access options for this content please click here
Article
Publication date: 1 June 1997

Jun Zhang and Yixin Chen

Introduces a method of food sensory evaluation employing artificial neural networks. The process of food sensory evaluation can be viewed as a multi‐input and multi‐output…

Abstract

Introduces a method of food sensory evaluation employing artificial neural networks. The process of food sensory evaluation can be viewed as a multi‐input and multi‐output (MIMO) system in which food composition serves as the input and human food evaluation as the output. It has proved to be very difficult to establish a mathematical model of this system; however, a series of samples have been obtained through experiments, each of which comprises input and output data. On the basis of these sample data, applies the back‐propagation algorithm (BP algorithm) to “train” a three‐layer feed‐forward network. The result is a neural network that can successfully imitate the food sensory evaluation of the evaluation panel. This method can also be applied in other fields such as food composition optimizing, new product development and market evaluation and investigation.

Details

Sensor Review, vol. 17 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

To view the access options for this content please click here
Article
Publication date: 2 October 2017

Maria Fransisca Njoman, Galih Nugroho, Sonia Dwi Puspita Chandra, Yoeska Permana, Suhadi Suhadi, Mujiono Mujiono, Agist Dwiki Hermawan and Sugiono Sugiono

The purpose of this paper is to evaluate subjectivity issue, particularly sensitivity variance and fatigue effect, in human sensory evaluation, as well as review the…

Abstract

Purpose

The purpose of this paper is to evaluate subjectivity issue, particularly sensitivity variance and fatigue effect, in human sensory evaluation, as well as review the feasibility of human-independent quality system, using E-tongue and E-nose.

Design/methodology/approach

The sensitivity level is evaluated by measuring the threshold of Acesulfame-K, while the fatigue effect is evaluated by measuring the accuracy level of evaluation through the time. The experiment was administered to six trained sensory panelists.

Findings

The experiment result shows that each panelist has a different level of sensitivity and tendency in evaluating samples containing Acesulfame-K. Furthermore, by simulating the panelists’ daily inspection, the fatigue effect is also found in one out of six panelists. The use of E-nose and E-tongue, may eliminate the subjectivity issue, supporting the development of human error-free quality system.

Research limitations/implications

The research findings indicate the needs of human substitution-built into the quality system to avoid both of subjectivity and error judgment while defining the products quality. However, the small numbers of panelists as well as the unvalidated substitute instruments application in the target workcenter were the main limitation of this study. Human-independent quality system could be applied only when the instruments have been calibrated to human response in perceiving taste and odor.

Originality/value

The research finding supports the theory of human panels’ tradeoffs in a sensory analysis in terms of sensitivity level variance and fatigue. It has provided additional contributions to the existing theories as well as developed effective strategies for the development of the human-independent quality system.

Details

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

Keywords

To view the access options for this content please click here
Article
Publication date: 30 August 2011

M.S. Balaji, Srividya Raghavan and Subhash Jha

There has been an increased interest in marketing literature in understanding the role of sensory experience. However, few researchers have addressed multisensory…

Abstract

Purpose

There has been an increased interest in marketing literature in understanding the role of sensory experience. However, few researchers have addressed multisensory interaction of visual and tactile evaluation for products salient in single sensory modality. The purpose of this paper is to address this gap and investigate how multisensory evaluation influences overall attitude and purchase intentions. Further, the role of individual personality variable in influencing the interrelationship between sensory evaluation and behavioral outcomes are examined.

Design/methodology/approach

The data for this study were collected from 126 students who responded to attitude towards the product and purchase intentions after evaluating three experimental tasks. Repeated measures analysis of variance was carried out to test the multisensory interaction hypotheses.

Findings

The multisensory interaction of tactile and visual information was found to significantly increase the consumer attitudes for products dominant on single sensory modality of touch. Further, the multisensory evaluation led to greater purchase intentions than visual or tactile evaluation.

Originality/value

The paper is perhaps first to investigate multisensory interaction of tactile and visual sensory information in evaluation of products that are salient in touch properties. The current study further examines the role of individual personality variables in influencing interrelationship between sensory evaluation and purchase intentions.

To view the access options for this content please click here
Article
Publication date: 25 February 2014

Dragan Tešanovic, Milovan Krasavcic, Bojana Miro Kalenjuk, Milijanko Portic and Snježana Gagic

The aim of this paper is to determine the sensory quality of food in restaurants by professional food evaluators and to research the impact of education, age and number of…

Abstract

Purpose

The aim of this paper is to determine the sensory quality of food in restaurants by professional food evaluators and to research the impact of education, age and number of employees on the quality of food.

Design/methodology/approach

In the first phase five trained food tasters evaluated the sensory quality of food. In the second phase, the analysis of the structure of employees was done by establishing their level of education, age and number of employees. In the third phase the regression and correlation analysis was done with the aim to establish the impact of the level of education, age and number of employees on the sensory quality of food.

Findings

The sensory evaluation has shown that the evaluated food is of moderate quality. Correlation matrix has shown that the education level of employees has a high impact on the sensory quality of food. There is a correlation between the number of employees, their age and their education.

Practical implications

Obtained results are the indicators of the quality of food in restaurants in the region and they can serve for the improvement of quality. They have shown that education and staff training can contribute to a better quality of food. Established methodology can also contribute to the practical evaluation of quality.

Originality/value

This paper is reflected on the specific application of methodology of the sensory analysis of food in restaurants. The paper pointed to the impact of employees on the sensory quality of food by statistical methods. Statistical results which point to the great impact of the level of education of employees on the sensory quality of food in restaurants are particularly valuable.

Details

British Food Journal, vol. 116 no. 3
Type: Research Article
ISSN: 0007-070X

Keywords

To view the access options for this content please click here
Article
Publication date: 1 September 2006

E. Strazdienė, S. Ben Saïd, M. Gutauskas, L. Schacher and D.C. Adolphe

The aim of presented investigation was to test developed testing device Griff tester, created for the objective evaluation of textile hand and to compare the obtained data…

Abstract

Purpose

The aim of presented investigation was to test developed testing device Griff tester, created for the objective evaluation of textile hand and to compare the obtained data with sensory evaluation results of textiles, subjected to different final treatments.

Design/methodology/approach

The effect of two finishing products, i.e. the crease‐resistant finishing Knittex® “K” and the softener macro silicone Ultratex® “Ul” upon 100 per cent cotton plain weave fabric was studied by two methods – objective evaluation and sensory analysis. Objective evaluation was done using Griff tester device where disc shaped specimen was extracted through a rounded hole of the stand. Sensory analysis was performed by the panel of 11 trained persons.

Findings

Investigations have shown that both treatments changed the hand of the fabric in the expected direction. Meantime, two experimental methods (objective and sensory approach) have shown their effectiveness to evaluate the textile touch, respectively.

Practical implications

The obtained results proved that criterion Q can be used for sensitive and vivid detection of differences between fabrics, affected by different final treatment operations. The effects of finishing products' concentrations were found to be in accordance with the manufacturer's technical specifications and with the finishing industrialist's expectations.

Originality/value

Investigation results obtained by Griff tester revealed the possibility of fabric hand evaluation on the basis of one relative criterion Q. These results can be linked with some attribute issued of the sensory analysis applied to the characterisation of the tactile feeling.

Details

International Journal of Clothing Science and Technology, vol. 18 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

To view the access options for this content please click here
Article
Publication date: 7 November 2016

Gilbert Azuela and Linda Robertson

Workshops are commonly used to up-skill staff and their usefulness can be determined by measuring whether or not learning needs have been met and, in particular, whether…

Abstract

Purpose

Workshops are commonly used to up-skill staff and their usefulness can be determined by measuring whether or not learning needs have been met and, in particular, whether attitudes have changed. In the field of mental health, sensory modulation workshops have been introduced to educate staff about preventative measures that reduce the use of seclusion and restraint for service users with challenging behaviours. The purpose of this paper is to evaluate the impact of such a workshop.

Design/methodology/approach

A one-day workshop was developed based on a review of the literature and feedback from previous workshops, and with input from an industry-based reference group. An evaluation tool was designed to measure the learning outcomes, i.e., the knowledge, skills, and attitudes of the 23 participants. The Statistical Package for the Social Sciences (SPSS v20) was used to analyse the data. Multi-variate analysis of variance was used to determine the relationship between variables.

Findings

A significant increase in the knowledge, skills, and attitudes of mental health staff was identified after the one-day workshop (F=106.346, df=1, p<0.000). When considering which participants showed most benefits, it was shown that the demographics had no effect, i.e., education level, practice discipline, years of work experience in mental health, and previous sensory modulation training.

Practical implications

Measuring learning outcomes provides essential information about whether or not the learning objectives have been met. This allows future workshops to be tailored to ensure that the learning opportunity is at the correct level for the learners. More traditional evaluations that elicit the views of the content covered and teaching methods should additionally be used to supplement this information.

Originality/value

Workshops are often evaluated on the basis of the participants’ subjective response to a quick questionnaire. Developing a tool to measure outcomes is a more effective way to determine what has been learned and to ensure that positive outcomes for individuals and their organisations can be reached.

Details

The Journal of Mental Health Training, Education and Practice, vol. 11 no. 5
Type: Research Article
ISSN: 1755-6228

Keywords

To view the access options for this content please click here
Article
Publication date: 2 July 2020

Xue Ling, Yan Hong and Zhijuan Pan

The purpose of this paper is to develop a dress design knowledge base (DDKB), which is expected to be further applied to a personalized dress recommendation system.

Abstract

Purpose

The purpose of this paper is to develop a dress design knowledge base (DDKB), which is expected to be further applied to a personalized dress recommendation system.

Design/methodology/approach

Dress design knowledge can be expressed as the relationship between designer's fashion perceptions of different dress elements. In order to extract dress design knowledge, a dress shape ontology (DSO) is firstly developed, which can be further used to form a dress element matrix (DEM). A perceptual descriptive space of the dress (DPDS) is developed for the description of the designer's fashion perception of dress. Through a standard sensory evaluation procedure performed by experienced experts (designers), the expected relationship can be obtained. This relationship is then mathematically simulated by fuzzy logic tools for the expected DDKB.

Findings

In this paper, a DDKB has been developed. The established knowledge base has been validated, and it can be further applied to dress recommendation system for a specific consumer.

Originality/value

This study introduces the concept of knowledge base to the area of dress individualized design. The knowledge-based design process based on sensory evaluation and fuzzy logic can efficiently solve the individualization of dress design in traditional design processes, which can provide a novel way to dress design individualization.

Details

International Journal of Clothing Science and Technology, vol. 33 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

To view the access options for this content please click here
Article
Publication date: 1 December 1995

John A. Bower

Introduces statistical methods employed in analysing sensory data.Describes significance testing and simple procedures for determinationof population characteristics in…

Abstract

Introduces statistical methods employed in analysing sensory data. Describes significance testing and simple procedures for determination of population characteristics in sensory data and highlights sources of error and replication in the sensory context. Discusses factors important in selection of an appropriate statistical test for sensory data.

Details

Nutrition & Food Science, vol. 95 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

To view the access options for this content please click here
Article
Publication date: 14 July 2020

Siti Zulaikha Binti Zulkifli, KyoungOk Kim and Masayuki Takatera

This study aimed to clarify the criteria for subjective evaluation of the similarities and differences between virtual and actual pants and propose a quantitative…

Abstract

Purpose

This study aimed to clarify the criteria for subjective evaluation of the similarities and differences between virtual and actual pants and propose a quantitative evaluation method for those similarities and differences based on geometric features related to the evaluation.

Design/methodology/approach

Using patterns, we made five pairs of actual pants for a dummy in five fabrics. We simulated virtual pants with a 3-D simulator. Sensory evaluation was conducted with images of the virtual and actual pants: 20 participants compared the images based on a questionnaire. For the structure of evaluation, the authors undertook analysis of variance and principal component analysis. The actual and virtual pants were geometrically compared using the 3-D scanned data. To investigate the relationship between quantitative and sensory evaluation, the authors calculated the correlation coefficients.

Findings

The authors found that subjects perceived the differences between actual and simulated pants. When comparing the virtual and actual pants, the criteria for the differences were the silhouette from the front view, hem width, waist and wrinkles. Using differences in the hem width, it would be possible to evaluate the differences between actual and simulated pants. Roughness and smoothness of the silhouette also affected evaluation.

Originality/value

The authors clarified the evaluation criteria for the similarities and differences between virtual and actual pants. The authors proposed a quantitative evaluation method for the similarities and differences between virtual and actual garment based on our criteria. This study will be of benefit to 3-D simulator users and developers.

Details

International Journal of Clothing Science and Technology, vol. 33 no. 2
Type: Research Article
ISSN: 0955-6222

Keywords

To view the access options for this content please click here
Article
Publication date: 7 March 2016

KyoungOk Kim, Sho Sonehara and Masayuki Takatera

– The purpose of this paper is to quantitatively evaluate the effect of adhesive interlining on the appearance of tailored jackets with different rigidity.

Abstract

Purpose

The purpose of this paper is to quantitatively evaluate the effect of adhesive interlining on the appearance of tailored jackets with different rigidity.

Design/methodology/approach

Four tailored jackets having the same pattern and fabric and three different adhesive interlinings or no adhesive interlining were prepared as experimental samples. Criteria and characteristics for assessing jacket appearance were investigated in sensory tests. A paired comparison of the jacket appearance was conducted using a ranking method. Smoothness and constriction values were proposed and obtained using three-dimensional shape data. The smoothness value refers to the degree of wrinkling on the jacket surface and the constriction value refers to the degree of constriction of the waistline. A quantitative assessment model of jacket appearance was proposed using multiple regression analysis.

Findings

The sensory test reveals that the number of wrinkles, acceptability of wrinkling and degree of constriction of the waist are important criteria in the assessment of jacket appearance. The smoothness value for the front body and the constriction value of the waist partially agreed with the normal scores of sensory test results. Sensory evaluation values for the entire jacket appearance were estimated employing multiple regression analysis with the constriction and smoothness values. The values of jacket appearance estimated using multiple regression analysis were in good agreement with the sensory test results.

Originality/value

Criteria and characteristics to be used in the assessment of the appearance of a jacket with adhesive interlining were clarified. Employing the proposed methodology, it is possible to predict jacket appearance for different adhesive interlinings, quantitatively.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

1 – 10 of over 5000