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Article
Publication date: 31 October 2008

Nuzhat Huma, Muhammad Anjum, Samreen Sehar, Muhammad Issa Khan and Shahzad Hussain

Legumes are widely grown and are consumed as a source of plant protein throughout the world. They rank second after cereals with respect to their consumption order. Legumes have…

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Abstract

Purpose

Legumes are widely grown and are consumed as a source of plant protein throughout the world. They rank second after cereals with respect to their consumption order. Legumes have anti‐nutritional factors which make their uses limited. This study aims to check the effect of soaking and cooking on the anti‐nutrient contents and nutritional quality of the legumes.

Design/methodology/approach

Five legumes (white kidney bean, red kidney bean, lentil, chickpea, and white gram) frequently used by the masses were selected for soaking and cooking trials. Legumes were tested for their weight, volume, density, swelling capacity and water absorption capacity before soaking and cooking. Legumes were soaked in simple water, 2 per cent sodium chloride solution, acetic acid and sodium bicarbonate and cooked in a beaker with 1 : 5 seed water ratio to uniform soft mass. After soaking and cooking, legumes were tested for anti‐nutrients (phytic acid and tannin) and their nutritional quality.

Findings

The statistical analysis of the study results revealed that dark colour legume (red kidney bens) has a high level of phytic acid and tannin compared with light colour (white kidney beans and white grams). Soaking and cooking of legumes result in significant reduction in phytic acid and tannin contents. Maximum reduction of phytic acid (78.055) and tannin (65.81 per cent) was found for sodium bicarbonate soaking followed by cooking. These treatments also result in a slight reduction in nutrients such as protein, minerals and total sugars.

Practical implications

Soaking and cooking of legumes reduce their anti‐nutrients; phytic acid and tannin significantly. These treatments may be used domestically as well as commercially to increase the nutrients' availability from legumes to meet the problem of protein and minerals deficiencies.

Originality/value

Along with water different soaking solutions which are easily available in the market were used to test out their effect on the nutritional quality and safety. These may be used by the common people to raise their nutritional status.

Details

Nutrition & Food Science, vol. 38 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 2 November 2010

Ghazala Qammar, Ghulam Mohy‐ud‐Din, Nuzhat Huma, Ayesha Sameen and Muhammad Issa Khan

The purpose of this paper is to investigate the stability of chicken flavored textured soy protein (TSP) substitution for chicken meat in pizza toppings.

627

Abstract

Purpose

The purpose of this paper is to investigate the stability of chicken flavored textured soy protein (TSP) substitution for chicken meat in pizza toppings.

Design/methodology/approach

TSP obtained from defatted soy flour was used to replace chicken at 25, 50 and 100 percent level in the pizza toppings. Patent grade wheat flour, TSP, boiled chicken, cheese, pizza shell and whole pizza were subjected to chemical analysis. Rheological properties of patent grade wheat flour were assessed by mixograph and farinograph. A panel of judges assessed sensory characteristics of pizza topping and whole pizza.

Findings

Moisture, ash and protein contents of the whole pizza showed a rise when the amount of TSP was increased, while fat content decreased slightly with increase in TSP content. Mixographic studies showed 6 min mixing time and 44 percent peak height. The farinographic studies revealed water absorption, arrival time, dough development time, departure time and dough stability as 63.6 percent, 1.5, 8.5, 13.3 and 11.8 min, respectively. The pizza that contained 25 percent TSP in the topping formulation possessed improved aroma, color, flavor and after taste characteristics. Whole pizza containing 25 percent soy protein and the standard pizza having 100 percent chicken in the topping were ranked similar in sensory qualities. Best sensory quality of topping was also for 25 percent TSP incorporation. Statistical analysis showed that pizza prepared with 25 percent TSP were highly acceptable.

Practical implications

The steadily increasing costs of animal proteins have compelled the food industry to focus attention on the low cost vegetable sources of protein. Soybeans are so versatile that they can be processed into flour, lecithin, oil, protein concentrates, isolated proteins, hydrolyzed proteins and textured protein and can be incorporated in meat and meat products as a relatively cheap protein source compared to expensive protein of animal origin.

Originality/value

The paper's findings may used by the pizza industry to replace the chicken in topping with TSP for vegetarians.

Details

Nutrition & Food Science, vol. 40 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 1 December 2005

Kamran Sharif, Masood Sadiq Butt and Nuzhat Huma

Aims to extract Rice bran oil (RBO) from Pakistani cultivar Basmati‐385 for efficient use of local rice industrial waste, i.e. rice bran to reduce the import of edible oil and to…

1296

Abstract

Purpose

Aims to extract Rice bran oil (RBO) from Pakistani cultivar Basmati‐385 for efficient use of local rice industrial waste, i.e. rice bran to reduce the import of edible oil and to evaluate the suitability of RBO in baked products by making cookies.

Design/methodology/approach

RBO was extracted from stabilized rice bran by solvent extraction. The RBO obtained was analyzed for different quality parameters and further applied into baked products such as cookies at various levels, i.e. 0, 25, 50, 75 and 100 per cent, by gradually replacing normal shortening to check its suitability as a shortening and its effectiveness in extending the shelf life of product due to its natural antioxidants. Five treatments of RBO and normal shortening (NS) (T1 = 100 per cent NS + 0 per cent RBO, T2 = 75 per cent NS + 25 per cent RBO, T3 = 50 per cent NS + 50 per cent RBO, T4 = 25 per cent NS + 75 per cent RBO and T5 = 0 per cent NS + 100 per cent RBO) were used to prepare cookies and 45 days, storage study was conducted.

Findings

Various treatments and storage have a highly significant effect on moisture, fat and NFE content of cookies. Protein content of cookies remained unaffected by changing treatments. During 45 days, storage moisture, protein, fat and NFE content decreased significantly. Physical studies revealed increase in width and spread factor of cookies, while thickness was reduced, gradually with the proportionate increase of RBO. There was significant decrease in quality score of cookies for color, taste, flavor, crispness, texture and overall acceptability. Treatment T3 (50 per cent NS + 50 per cent RBO) got the highest score for all the sensory attributes.

Practical implications

The present study suggests that T3 (50 per cent NS + 50 per cent RBO) can produce superior quality cookies to prove the effectiveness of RBO as bakery shortening.

Originality/value

Although Pakistan is an agricultural country, unfortunately 71 per cent of the country's edible oil requirements are met through the import of edible oil. In the present project the possibility of RBO extraction from local variety was evaluated. In this way, if fully explored, RBO can become the fourth indigenous source of edible oil.

Details

Nutrition & Food Science, vol. 35 no. 6
Type: Research Article
ISSN: 0034-6659

Keywords

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