DEVELOPMENT AND EVALUATION OF MILLET BASED INSTANT SOUP MIXES

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Date
2019
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PROFESSOR JAYASHANKAR TELANGANA STATE AGRICULTURAL UNIVERSITY
Abstract
Nowadays, there is considerable interest in the development of millet based products as they are rich in nutrients and other phyto-nutrients possessing health benefits. Hence, development, evaluation and marketing of novel millet based products would diversify and increase the millet consumption. Instant soup mixes are kind of convenience foods which gained extended popularity in the recent years, by providing convenience, variety and taste. Millet based instant soup mixes is a way to blend millets with mixture of other ingredients in an acceptable manner that finds a ready market. Kodo and little millet flours were evaluated for physical, nutritional and chemical properties. Seven millet based soup mixes were developed with varying proportions of kodo and little millet flours and were evaluated for sensory quality characteristics to select best accepted variations. Selected millet soup mixes, control soups mixes were evaluated for physical, nutritional and chemical properties. Storage studies of the soup mixes was evaluated for a period of 2 months with one month interval. The bulk density of millet flours was (0.68 g/ml and 0.68 g/ml), rehydration ratio was (2.14% and 2.03%), water activity was (0.48 and 0.48), water holding capacity was (0.53 and 1.24), water absorption index was (8.00 g/100g and 8.68 g /100g), water solubility index was (8.06 g /100g and 6.63 g /100g) for kodo and little millet flours respectively. The moisture content of kodo and little millet flour was (9.64% and 9.75%), protein (7.60% and 8.42%), fat (1.24% and 2.10%), crude fiber (4.06% and 3.20%), ash (1.39% and 1.75%), carbohydrate (76.04 g/100g and 74.75 g/100g and energy (345.77 K. Cal/100g and 351.65 K. Cal/100g) respectively. The vitamin C content was (0.67 mg/100g and 0.65 mg/100g), dietary fiber (14.78 g/100g and 12.51 g/100g), IVPD (74.58 % and 77.64 %) and antioxidant activity (55.22 % and 52.49%) for kodo and little millet flours respectively. Soup variations containing kodo and little millet flours in the ratio of 30: 20 and 10: 40 showed higher sensory evaluation scores and were significantly superior to other millet Author : K. SRILEKHA ID NO. : HHM/2017-04 Title of the work : DEVELOPMENT AND EVALUATION OF MILLET BASED INSTANT SOUP MIXES. Degree : MASTER OF SCIENCE IN HOME SCIENCE Faculty : COMMUNITY SCIENCE Major Field : FOODS AND NUTRITION Major Advisor : Dr. T. Kamalaja University : PROFESSOR JAYASHANKAR TELANGANA STATE AGRICULTURAL UNIVERSITY Year of submission : 2019 16 based soups with respect to consistency. Hence, they were selected as best accepted mixes for carrying out further studies. Sensory evaluation scores of soups prepared with selected soup mixes were on par with commercial soup. Statistically Significant difference at 1% level was found between the control, commercial and experimental soups with respect to appearance, consistency and overall acceptability. Statistically significant difference at p≤0.01 was observed between control soup mixes and ESFs with respect to water activity, water holding capacity, water absorption index and water solubility index. The Bulk density ranged from 0.68 g/ml to 0.64 g/ml, rehydration ratio from 2.16 % to 2.37%, water holding capacity from 1.53 to 2.14, water activity from 0.48 to 0.50, water absorption index from 6.51 g/100g to 2.88 g/100g and water solubility index from 6.88 g/100g to 5.65 g/100g for the soup mixes. Statistically significant difference at p≤0.01 was found between control and ESFs with respect to moisture, protein, fat, crude fiber, carbohydrates and energy contents. Moisture content ranged from 5.63% to 7.13 %, protein from 5.56 g/100g to 11.40 g/100g, fat from 0.63 g/100g to 2.80 g/100g, ash from 2.07 g/100g to 0.63 g/100g, crude fiber from 1.00 g/100g to 3.32 g/100 g, carbohydrate content from 85.12 g/100g and 74.46 g/100g and energy content from 369.0 K. Cal/100g to 359.4 K. Cal/100g for the soup mixes. Protein, fat, ash and crude fiber content of ESFs was significantly higher than the control soup mix. Statistically significant difference (p≤0.01) was found between control and ESFs with respect to vitamin C, dietary fiber, IVPD and antioxidant activity. The vitamin C content of soup mixes ranged from 2.78 mg/100g to 3.90 mg/100g, dietary fiber from 10.67 g/100g 2.2 g/100g, IVPD from 79.67% to 76.73% and antioxidant activity from 13.45% to 40.82%. Statistically significant difference at p≤0.01 was found in the moisture content of ESF1 and ESF2 and CSM during storage period. Total bacterial count of ESF1 and ESF2 was within the acceptable limits during storage period. But total bacterial count of control soup mix was near to borderline on 60th day of storage. No mould growth was seen in the soup mixes up to 60 days of storage. There was decrease in the sensory evaluation scores of the stored products for all the attributes. Yet the sensory evaluation scores were within acceptable range for a period of 60 days. Thus the present study demonstrated that millet based soup mixes were superior to control soup mix with respect to physical, nutritional and chemical quality characteristics. The storage stability of the soup mixes was also found to be acceptable. Popularization of millet based instant soup mixes among rural and urban masses and training rural entrepreneurs in preparation of these products will go a long way in providing demand for millet based products.
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D10,421
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