Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet

Introduction: The traditional method of producing instant foods involves producing a gelatinised paste from the preferred grain flour and proceeding to dry it using a drum drier. This produced a flaked product, which can be used as is or ground and sieved to obtain the desired particle size. With th...

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Main Authors: Anthony O. Obilana, Barthi Odhav, Victoria A. Jideani
Format: Article
Language:English
Published: Swedish Nutrition Foundation 2018-11-01
Series:Food & Nutrition Research
Subjects:
Online Access:https://foodandnutritionresearch.net/index.php/fnr/article/view/1524/6195
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author Anthony O. Obilana
Barthi Odhav
Victoria A. Jideani
author_facet Anthony O. Obilana
Barthi Odhav
Victoria A. Jideani
author_sort Anthony O. Obilana
collection DOAJ
description Introduction: The traditional method of producing instant foods involves producing a gelatinised paste from the preferred grain flour and proceeding to dry it using a drum drier. This produced a flaked product, which can be used as is or ground and sieved to obtain the desired particle size. With the advent of extrusion cooking technology and diverse production processes associated with the technology, food products including instant foods from cereals were developed. Objectives: The primary objective of this study was to produce a nutritious and acceptable pearl millet instant beverage powder (PMIBP) using combination processing. Methods: The effect of different processing methods (malting, extrusion, and a combination of both processes) on the nutritional, biochemical, and sensory characteristics of beverage powders and beverages made from two varieties of pearl millet (Pennisetum glaucum) were evaluated. Results: Combination processing led to a significant (p ≤ 0.05) decrease in total fat and total dietary fibre (TDF) (3.85 and 22.99 g/100 g, respectively) of AgriGreen (AgG) extruded malted pearl millet (EMPM) and extruded raw pearl millet–malted pearl millet mix (ERPMMPM). Combination processing also led to a decrease in the ash, total fat, TDF, Fe and Zn content (1.76, 3.48, 14.26 g/100 g, 7.78 and 4.74 mg/100 g, respectively) of Babala (Ba) EMPM and Ba ERPMMPM (1.88, 4.22, 21.71 g/100 g, 7.24 and 4.14 mg/100 g, respectively). Beverages of 10% total solids were prepared from the samples and offered to an untrained consumer panel. The beverages were rated on appearance, colour, aroma, flavour, texture and overall acceptability on a nine-point hedonic scale. In general, Ba raw pearl millet was rated 4 (like slightly), AgG malted pearl millet was rated 6 (dislike slightly), and all other pearl millet samples from both varieties were rated 5 (neither like nor dislike). Conclusion: Although combination processing led to an increase in carbohydrates, Ca, energy, Fe content, and 12 of the 15 amino acids measured as well as protein and starch digestibility and no change in the other nutrients measured, this did not significantly impact on the acceptability of the beverages.
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spelling doaj.art-60aff0032fc74a8681ac5cadf03186e62022-12-22T03:18:31ZengSwedish Nutrition FoundationFood & Nutrition Research1654-661X2018-11-0162011110.29219/fnr.v62.15241524Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl milletAnthony O. Obilana0Barthi Odhav1Victoria A. Jideani2Food Technology Department, Cape Peninsula University of Technology, Bellville Campus, Cape Town, South AfricaBiotechnology and Food Technology Department, Durban University of Technology, Durban, South AfricaFood Technology Department, Cape Peninsula University of Technology, Bellville Campus, Cape Town, South AfricaIntroduction: The traditional method of producing instant foods involves producing a gelatinised paste from the preferred grain flour and proceeding to dry it using a drum drier. This produced a flaked product, which can be used as is or ground and sieved to obtain the desired particle size. With the advent of extrusion cooking technology and diverse production processes associated with the technology, food products including instant foods from cereals were developed. Objectives: The primary objective of this study was to produce a nutritious and acceptable pearl millet instant beverage powder (PMIBP) using combination processing. Methods: The effect of different processing methods (malting, extrusion, and a combination of both processes) on the nutritional, biochemical, and sensory characteristics of beverage powders and beverages made from two varieties of pearl millet (Pennisetum glaucum) were evaluated. Results: Combination processing led to a significant (p ≤ 0.05) decrease in total fat and total dietary fibre (TDF) (3.85 and 22.99 g/100 g, respectively) of AgriGreen (AgG) extruded malted pearl millet (EMPM) and extruded raw pearl millet–malted pearl millet mix (ERPMMPM). Combination processing also led to a decrease in the ash, total fat, TDF, Fe and Zn content (1.76, 3.48, 14.26 g/100 g, 7.78 and 4.74 mg/100 g, respectively) of Babala (Ba) EMPM and Ba ERPMMPM (1.88, 4.22, 21.71 g/100 g, 7.24 and 4.14 mg/100 g, respectively). Beverages of 10% total solids were prepared from the samples and offered to an untrained consumer panel. The beverages were rated on appearance, colour, aroma, flavour, texture and overall acceptability on a nine-point hedonic scale. In general, Ba raw pearl millet was rated 4 (like slightly), AgG malted pearl millet was rated 6 (dislike slightly), and all other pearl millet samples from both varieties were rated 5 (neither like nor dislike). Conclusion: Although combination processing led to an increase in carbohydrates, Ca, energy, Fe content, and 12 of the 15 amino acids measured as well as protein and starch digestibility and no change in the other nutrients measured, this did not significantly impact on the acceptability of the beverages.https://foodandnutritionresearch.net/index.php/fnr/article/view/1524/6195Instant beverage powderpearl milletcombination processingmaltingextrusionInstant beverage powder
spellingShingle Anthony O. Obilana
Barthi Odhav
Victoria A. Jideani
Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
Food & Nutrition Research
Instant beverage powder
pearl millet
combination processing
malting
extrusion
Instant beverage powder
title Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
title_full Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
title_fullStr Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
title_full_unstemmed Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
title_short Nutritional, biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
title_sort nutritional biochemical and sensory properties of instant beverage powder made from two different varieties of pearl millet
topic Instant beverage powder
pearl millet
combination processing
malting
extrusion
Instant beverage powder
url https://foodandnutritionresearch.net/index.php/fnr/article/view/1524/6195
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AT victoriaajideani nutritionalbiochemicalandsensorypropertiesofinstantbeveragepowdermadefromtwodifferentvarietiesofpearlmillet