Thumbnail Image

Theses

Browse

20182
Reset filters
Author: Priyanka × End date: 2018 × Start date: 2018 × Type: Thesis × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Development of processing technology for instant mango shake powder
    (CCSHAU, 2018) Priyanka; Rekha
    The present investigation ―Development of processing technology for instant mango shake powder‖ was conducted with the objectives to optimize processing technology for development of instant mango shake (IMS). Fresh and six months stored frozen pulp mango pulp had total soluble solids (19.56 and 16.39 %), acidity (0.41 and 0.43 %), ascorbic acid (6.96 and 5.73 mg/100 g), reducing sugars (5.79 and 5.93%), total sugars (13.24 and 13.79%), pectin (0.51 and 0.54%), total carotenoids (1.24 and 1.15 mg/100 g) and total phenols (42.33 and 39.67 mg/100 g) Mango pulp was blanched in microwave (2.00 min. /100 g at 900W). After blanching, the product was either freez dried, tray dried or microwave assisted tray dried. After drying, dried mango pulp was ground to powder, mixed with skim milk powder (SMP) and sugar in 32:26:42 ratio, packed in aluminum laminated and polypropylene pouches and stored for three months at room temperature. IMS1 (prepared from mango pulp, mixed with skim milk powder and freeze dried) and IMS2 (prepared from microwave assisted tray dried mango pulp) had moisture content (4.60 and 4.15%), crude protein (0.82 and 0.77%), crude fat (0.42 and 0.46%), crude fibre (0.93 and 0.89%), ash (1.47 and 1.45%), carbohydrates (96.27 and 96.42%), energy (393.93 and 393.93 Kcal), calcium (262.67 and 252.33 mg/100 g), ascorbic acid (5.75 and 5.01 mg/100 g), carotenoids (1.14 and 1.09 mg/100 g), total phenols (39.19 and 34.17 mg/100 g), bulk density (0.94 and 0.89 g/cm3)and dispersibility (86.87 and 82.93%) The most acceptable instant mango shake powder i.e., mango pulp mixed with skim milk powder and freeze dried had moisture (4.60%), protein (0.82%), fat (0.42%), crude fibre (0.93%), ash (1.47%), carbohydrates (96.27%), energy 392.90 Kcal and calcium (262.67 mg/100 g), ascorbic acid (5.75 mg/100 g), total Carotenoids (1.14 mg/100 g) and total phenols (39.19 mg/100 g) Moisture content, water activity, acidity, non enzymatic browning, total soluble solids, solubility index and microbial load increased while, pH and ascorbic acid of the all three instant mango shake powder variants decreased significantly during three month of storage. Cost of IMS powder ranged from `247.54 to 46.72/100 g. All the instant mango shake powder variants were found acceptable even after three months storage.
  • Thumbnail Image
    ThesisItemOpen Access
    Self-esteem, achievement motivation and academic performance of high school children
    (CCSHAU, 2018) Priyanka; Balda, Shanti
    Self-esteem refers to person's beliefs about his or her worth and value. Self-esteem is important because it influences individual's decisions. Achievement motivation is described as the need for performing well or the motivated for success and evidence by persistence or effort in the facing the difficulties. Academic performance as well as achievement both is the outcomes of education and the extent from which a student, teacher and the institution has accomplished their educational goals. The present study examines the relationship between self-esteem, achievement motivation and academic performance of high school children. The study was conducted in Hisar city and rural area of Hisar district. Total sample constituted of 240 adolescents, 120 from rural area and 120 from urban area, representing both the sexes in equal number. Self-prepared interview schedule was used to collect information on personal and socio-economic variables. Self- Esteem Inventory (Prasad and Thakur, 1977) was used to assess self-esteem of children. Rao‟s Achievement Motivation Test (Rao, 1974) was used to assess achievement motivation of children. For academic performance, percentage of marks secured in previous three examinations was obtained from school records. The results revealed that maximum percentage of high school children belonged to moderate category of personally perceived and socially perceived self-esteem. Irrespective of area of residence and sex of children, self-esteem of majority of high school children was high followed by negative and balanced. Majority of children had moderate level of achievement motivation. Majority of children from both the areas belonged to above average category of academic performance. There existed significant positive correlations between self-esteem (personally perceived and socially perceived) and achievement motivation and academic performance of children. Children with balanced and high self-esteem had high achievement motivation and performed better in academics than those with negative self-esteem. Results further revealed that socio-economic status of family was strong predictor of self-esteem and achievement motivation of children.