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2017 - 201912020 - 20221
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Subject: Food Science and Technology × Author: Kaul, Shivani × Start date: 1998 × Type: Thesis ×
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    Development and evaluation of micronutrient fortified ready-to-bake frozen potato paranthas
    (Punjab Agricultural University, Ludhiana, 2022) Kaul, Shivani; Kamaljit Kaur
    The investigation was carried out to standardize the conditions for encapsulation of iron and zinc by spray drying technique which were further utilized in fortification of ready-to-bake frozen potato paranthas. The native starch was modified by four techniques that is pre-gelatinization, alcohol and alkali treatment, microwave treatment, and ultrasonication treatment. The alcohol and alkali modified starch was selected due to higher cold-water solubility and maximum modification and hence were further used in the encapsulation process. The encapsulation process was carried out from four different formulations having 10, 20, 30, and 40% TSS. Fe 30 and Zn 30 were selected on the basis of various physical and chemical attributes. Fe 30 and Zn 30 were used to fortify wheat flour and then potato paranthas were prepared. Three different types of paranthas were prepared that is unfortified parantha (UFP), parantha fortified with encapsulated iron/zinc (EFP), and parantha fortified with unencapsulated iron/zinc (UnFP). These three paranthas were packed in aluminium laminates and vacuum packs and further stored under frozen conditions (-18°C). The prepared product was subjected to proximate analysis, bioactive analysis, microbial analysis, and organoleptic evaluation. The shelf-life analysis revealed that the product can be effectively stored for three months in aluminium laminates and five months in vacuum packs with an overall acceptability of more than seven. Thus, to combat malnutrition and deliver convenience, fortified ready-to-bake frozen potato parantha is one of the best technique to cater wide consumer demands.
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    ThesisItemOpen Access
    Process Development for Preparation of Toffee from Figs
    (Punjab Agricultural University, Ludhiana, 2017) Kaul, Shivani; Rehal, Jagbir
    Fig is emerging as an important functional food because of its high nutritional and medicinal values. Fig is considered to be an important source of dietary fiber, vitamins and various useful minerals like Iron, Calcium, Magnesium, Copper, etc. Confectionery products due to their sweet taste and flavour are enjoyed worldwide and by all age groups. Fruit toffees contain nutrients like vitamins and minerals present in the original fruit and are nutritionally superior to milk based toffees. The present study was carried out to develop and standardize technology for preparation of fig toffees. Six types of toffee blends were prepared with the replacement of fig in the amount of 0%, 10%, 20%, 30%, 40% and 50%. It was found that toffee containing 30% fig pulp was most desirable and was kept for storage studies. Product was analyzed at an interval of 30 days to assess physico-chemical and organoleptic changes undergoing in the product. It was found that product contained crude fiber content of 2.890 per cent, protein 3.973 per cent, fat 9.877 per cent, phenolic compounds 153.253 GAE mg per 100 g, antioxidants 2460.620 per cent inhibition activity per 100g and flavonoids 15.110 mg per 100 g. Fig toffee was also found to be a good source of minerals like Calcium (235.4 mg per g), Iron (2.945 mg per g), Potassium (356.5 mg per g), Magnesium (41.93 mg per g), Sodium (157.1 mg per g) and Phosphorus (171.3 mg per g). Storage studies revealed that product was stable during three months storage study period.