Volume 46, Issue 12 e17170
ORIGINAL ARTICLE

Optimization of process variables for preparation of horse gram flour incorporated high fiber nutritious biscuits

Homi Joshi

Corresponding Author

Homi Joshi

Department of Foods and Nutrition, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India

Correspondence

Homi Joshi, Department of Foods and Nutrition, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India.

Email: [email protected]

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Pratima Awasthi

Pratima Awasthi

Department of Foods and Nutrition, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India

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Navin C. Shahi

Navin C. Shahi

Department of Post-Harvest Process and Food Engineering, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India

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First published: 20 September 2022
Citations: 5

Abstract

The present study aims at optimizing the process variables for development of horse gram flour incorporated biscuits, high in protein and dietary fiber. Box–Behnken design was employed to optimize the levels of three independent variables viz. flour: fat ratio, % whole wheat flour (WWF) replaced by horse gram flour (HF) and baking time (minutes) and their effects were determined over the response parameters that is, overall acceptability, fat content (g/100 g), dietary fiber (g/100 g), hardness and color difference (ΔE). Results showed that increasing the flour: fat ratio and % of WWF replaced by HF significantly decreased (p < 0.05) the overall acceptability. Fat content of biscuits was also significantly affected by the flour: fat ratio and % of HF. The hardness and dietary fiber content of biscuits was found to be positively correlated with flour: fat ratio and % WWF replaced by HF. It was observed that prolonging the baking time led to an increase (p < 0.05) in the hardness and color difference of biscuits. The optimized nutritious biscuits were obtained at flour: fat ratio 4.15:1, 23.5% WWF replaced by HF and baking time 29 min. Horse gram flour incorporated biscuits thus optimized were high in dietary fiber (9.37 g/100 g) and low in fat (16.41 g/100 g). Other responses predicted in terms of OA, hardness and color difference (ΔE) were 7.03, 31.53 N and 8.01 respectively. The study thus explains that the under-utilized grain legume – horse gram can be successfully incorporated to develop fiber rich nutritious biscuits with good consumer acceptability.

Novelty Impact Statement

In this study, response surface methodology (RSM) was used to develop and optimize horse gram flour incorporated biscuits by supplementing horse gram flour to whole wheat flour in different ratios. These biscuits being high in dietary fiber, protein and low in fat may be a better alternative for the commercially available biscuits, especially for the diabetics. Also, this may improve the status of underutilized indigenous legume horse gram.

CONFLICT OF INTEREST

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this manuscript. No conflict of interest exits in the submission of this manuscript.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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