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ThesisItem Restricted Technology for isolation of potato starch from noncommercial potato varieties(Punjab Agricultural University, Ludhiana, 2020) Rajdeep Singh; Sukhpreet KaurThe present research “Technology for isolation of potato starch from non-commercial potato varieties” was carried out with the objectives to standardize the method for isolation of potato starch, characterization of starch isolated from commercial and non-commercial potato cultivars and to develop value added products from isolated potato starch and to evaluate the storage stability of developed products. Four potato cultivars namely Kufri Chipsona-3, Lady Rosetta (commercial potato cultivars), Kufri Ganga and Kufri Pukhraj (non-commercial potato cultivars) were procured from department of vegetable sciences, Punjab Agricultural University, Ludhiana. Among the cultivars studied, commercial Potato cultivars KufriChipsona-3 and LR contained the highest dry matter content and lowest reducing sugar content compared to non-commercial cultivars. Starch extracted from different potato cultivars differ significantly (p<0.05) in their physico-chemical and functional properties. Higher yield was obtained from commercial cultivars compared to non-commercial cultivars. For pasting properties, starch obtained from non-commercial potato cultivars showed higher final viscosity than commercial ones. So these were selected for the preparation of value added potato products. (Non-cereal pudding mix and vegetable soup mix). Storage studies showed that non-cereal pudding mix and vegetable soup mix can be stored safely for 6 months and 4 months respectively. These products are non-cereal based easy to prepare, shelf stable products and can be consumed during the fasting period .
