title: Development of extruded Ready-To-Eat (RTE) snacks using corn, black gram, roots and tuber flour blends.
abstract: Extruded RTE snacks were prepared from flour blends made with corn flour, Bengal gram flour, roots and tuber flours in a proportion of 60-80: 20: 20 respectively and moisture was adjusted to 17-20 %. The roots and tubers flours were developed from potato (Solanum tuberosum), yam (Dioscorea spp.), sweet potato (Ipomoea batatas L.), taro (Colocassia esculenta) and beet root (Beta vulgaris). Different formulations were extruded at 80 ± 5 °C (heater I) and 95-105 °C (heater II) temperature, 300-350 rpm screw speed, 100 ± 10 °C die temperature and 15 ± 2 kg/h feed rate. The exit diameter of the circular die was 3 mm. Sensory acceptability, physical parameters and nutrient analysis along with storage stability of the products was conducted. The fiber and energy content of the RTE extruded snack improved in experimental samples prepared using root and tuber flours. A serving of 100 g of the snack can provide more than 400 Kcal and 10 g of protein. The overall acceptability of RTE extruded products made with potato and taro were highly acceptable compared to yam and sweet potato. The study demonstrates utilization of roots and tuber flours as potential and diverse ingredients to enhance the appearance and nutritional properties in RTE extruded snack.
authors.affiliation: Department of Foods & Nutrition, Post Graduate & Research Centre, Acharya N G Ranga Agricultural University, Hyderabad, 30 India.
authors.forename: M Kavya
authors.initials: MK
authors.lastname: Reddy
authors.affiliation: Department of Foods & Nutrition, Post Graduate & Research Centre, Acharya N G Ranga Agricultural University, Hyderabad, 30 India.
authors.forename: Aparna
authors.initials: A
authors.lastname: Kuna
authors.affiliation: Department of Foods & Nutrition, Post Graduate & Research Centre, Acharya N G Ranga Agricultural University, Hyderabad, 30 India.
authors.forename: N Lakshmi
authors.initials: NL
authors.lastname: Devi
authors.affiliation: Department of Veterinary Public Health, College of Veterinary Sciences, Sri Venkateswara Veterinary University, Hyderabad, 30 India.
authors.forename: N
authors.initials: N
authors.lastname: Krishnaiah
authors.affiliation: Division of Post Harvest Technology, Indian Agricultural Research Institute, New Delhi, India.
authors.forename: Charanjit
authors.initials: C
authors.lastname: Kaur
authors.affiliation: Ruska Labs, College of Veterinary Sciences, Sri Venkateswara Veterinary University, Hyderabad, 30 India.
authors.forename: Y
authors.initials: Y
authors.lastname: Nagamalleswari
keywords: Extruded; Ready-To-Eat (RTE); Roots and tubers; Snacks