Healthy diet for elderly not only provided them with their needs from all nutrients but also helped preventing and treating age-related disorders. So, the present study was to evaluate physical, chemical and sensory characteristics of nine formulated functional soup mixtures for elderly. This study was designed to prepare some soups contained some of vegetables and fruit which cooked in one of three liquids (water, chicken broth and whey). Nine soup mixtures of vegetables and fruits were prepared. Proximate composition, vitamins, minerals, physical characteristics and antioxidant activity were determined, sensory properties were evaluated, as well as caloric values and RDA (Recommended Dietary Allowances) were calculated. The soup colors varied between red to orange yellow or yellow. The results of the sensory evaluation showed that all the different soup mixtures were acceptable with values ranging from 8.38 to 9.50 for overall acceptability. The results indicated that one serving of soup mixtures which contained oat, spinach, broccoli and bananas covered the RDA of protein, crude fiber, fat, carbohydrates and caloric values for elderly male and female by about 14.3-18.5%, 29.3-44.3%, 10-12.5%, 29.6-30.6% and 9.4-10.7 kcal/cup of soup, respectively. While, vitamins A, C, B 6 and B 12 were covered by about 448%, 39%, 29% and 750%, respectively for male and 576%, 47%, 33% and 750%, respectively for female. In conclusion the formulated soup mixtures with high acceptability and antioxidant activity can provide elderly people with high percent of their requirements from nutrients.
F RANKINCENSE (Boswellia carterii) has many medicinal benefits. In Egypt, a few people like to use it in chewing and sometimes in incense. This study aimed to use the water extract of frankincense powder prepared by soaking in drinkable water for 24 hr (T1) and boiling in water for one hour (T2) for the fortification of guava nectar in concentrations ranging from 0.25 to 2% (volume/ volume (v/v)). The chemical composition, phenols, and flavonoids contents of the frankincense were determined. Anti-oxidant (DPPH method) and antimicrobials (pathogenic bacteria) and cytotoxicity (HepG-2 and MCF-7 human cancer cell lines) activities were measured. Sensory evaluation and the physical properties of the guava nectar mixed with water extracts of frankincense were evaluated. The phenols and total flavonoid contents of the T2 sample were 0.869 and 0.147 mg/g, respectively. However, it was 0.748 and 0.070 mg/g, respectively for T1. The results showed that frankincense powder has 93.74% antioxidant activity with 67.26 mg/ml IC 50 . The results also showed that the T2 sample has antibacterial activity against Salmonella typhi and Bacillus cereus. The results also showed that the frankincense powder has cytotoxic activity and this activity is strong on HepG-2 human cancer cell lines compared to the positive control (doxorubicin), however, it is less activity on the human breast adenocarcinoma (MCF-7). The IC 50 values of the frankincense powder were 7.8 and 33.9 µM, respectively, while doxorubicin values were 10.3 and 28.5 µM, respectively. The results of the sensory evaluation showed that water extracts of the frankincense can be added to guava nectar at concentrations up to1%. It can be concluded that it is possible to mix aqueous extracts of the frankincense with guava nectar to obtain a product with a pleasant taste, color, and aroma and having also the advantages of frankincense.
Mushrooms are products which lose their unique organoleptic properties after harvesting and, it has a short shelf life. The effect of edible coating of mushroom on shelf life was evaluated by using carrageenan (1.5%) and different concentrations of tangerine (Citrus reticulate) essential oil (0.2, 0.4 and 0.6%). Edible coating solutions were prepared using different rotational speed of mixing (500, 1000 and 1500 rpm). Physiochemical properties of tangerine essential oil and rheological characteristics of edible coating solutions were measured. The results indicated that all edible coating solutions exhibited non-Newtonian pseudoplastic behavior. The highest value of water vapor permeability was for carrageenan (1.5%) incorporated with tangerine essential oil (0.2%) at 500 rpm sample. Essential oil and mixing speed affected the edible film morphology. Edible coating of mushroom affected the weight loss, firmness, moisture content and microbiological properties. The obtained results indicated the possibility of prolonging the period of preserving mushrooms by using the coating film prepared from carrageenan mixed with tangerine essential oil.
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