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This study was aimed to estimate the effects of the extract of coriander seed during storage on the chemical and sensory properties of yoghurt. Coriander seed extract was incorporated into yoghurt at different concentrations, 18 mg/mL (T1C1), 36 mg/mL (T2C2) and 54 mg/mL (T3C3) respectively, while control was performed using a sample without extract (T0C0). Samples were stored at 4°C for 42 days and every seven days were evaluated. For all samples containing extract, the values of lactose, fat, pH, protein, tyrosine, acid degree value, acid value, free fatty acid and sensory properties gave higher scores than those of yoghurt without extract. A major deterioration beyond 28 days of storage due to high acidity and an unpleasant taste was discovered by chemical and sensory evaluations of the yoghurt without plant extract. On the other hand, concentrations of 18, 36 and 54 mg/mL had shown to have a remarkable 42-day preservation activity in yoghurt. Compared to formulas T1C1 and T2C2, which contained 18 mg/mL and 36 mg/ mL respectively, formula T3C3, fortified with coriander seed extract at 54 mg/mL, had the highest value in maintaining the chemical properties of yoghurt after 42 days. The findings indicated that coriander extract can be applied as a natural food preservative to milk products in order to increase stability during storage.
Background: Increased consumption of natural antioxidants found in vegetables and fruits has been linked to a lower risk of disease caused by oxidative stress.Objective: The current study's focus was to compare the antioxidant properties of synthetic glutathione and glutathione derived from spinach against CCl4-induced stress in female albino rats. Materials and Methods: Cold chloroform extraction was used to prepare the spinach leaf extract. Glutathione was then extracted from the spinach leaf extract using preparative HPLC afterward when the concentration of glutathione was measured in the extract. Biological preventive and therapeutic experiments were conducted, where laboratory rats were divided into 6 groups, the first group G1 (positive control group), the second group G2 (negative control group), the third group G3 preventive experiment 1 (group glutathione extracted from spinach + CCl4), the fourth group G4 therapeutic experiment 1 (Group CCl4+ Glutathione extracted from spinach), the fifth group G5 Preventive experiment 2 (Group of synthetic glutathione + CCl4), the sixth group G6 therapeutic experiment 2 (Group CCl4+ Glutathione extracted from spinach). Results: Treatment of rats with spinach-derived synthetic glutathione, before or after they were given CCl4 subcutaneous, improved the values of parameters near to normal levels in the positive control animals in groups treated with spinach-derived glutathione (G3 and G4) compared to treatment with synthetic glutathione (G5 and G6). Administration of milk with glutathione derived from Iraqi spinach leaves exhibited favorable effects on oxidative stress, greatly enhanced the antioxidant system, and protected rats from liver damage brought on by carbon tetrachloride compared to milk with synthetic glutathione. Keywords: Iraqi spinach, Functional food, Natural antioxidant, Oxidative stress, synthetic glutathione.
A saffron extract-based beverage (SEBB) was formulated and characterized based on its sensory attributes and health benefits. The main bioactive compounds of saffron extract (crocin and safranal) were quantified. Three formulations of SEBB were prepared based on the sucrose concentration: SEBB 1 contained 65 g of sucrose per 500 ml, SEBB 2 contained 17.5 g, and SEBB 3 contained 79.5 g. The SEBB most desired by consumers was then subjected to biochemical analysis to evaluate its antioxidative effects on the damage induced by food contaminated with carbon tetrachloride (CCl4). Fifteen albino rats were split into five groups and treated with different doses of CCl4 or SEBB according to the planned animal experiment for 62 days. Sensory evaluation illustrated that SEBB 1 had the highest acceptability scores. The content of crocin and safranal was 23.039 and 4.135 ppm, respectively. The SEBB ameliorated the increased activity of enzymes involved in liver and kidney function and improved the total antioxidant capacity, blood glucose, and lipid profile.
Light-induced degradation reactions make a serious problem for the milk because of the development of flavors and a decrease in nutritional quality, materials of Packaging are important to avoid this particular degradation of milk. In this study, were divided milk into two groups (light exposed ) + (light protected (foil overwrap)) under the same cooling conditions at 3°C for 15 days, those expectant during the show in stores of retail and markets. And the effect of this on the chemical composition of milk, the results of my study then showed that the appropriate blocking light with an overwrap of foil helped inhibit lipid and protein Lipolysis compared with the samples exposed to light under the same cooling conditions. Therefore, the appropriate Blocking of visible light with foil overwrap can increase milk's shelf life.
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