Effects Of Chitosan Coating On Freeze-Drying Of Blueberry Heightened By Ultrasound Pre-Treatment In Sodium Bicarbonate Medium

Sodium bicarbonate medium ultrasound pre-treatment can enhance the freeze-drying process of blueberries, but the quality of dried wares cannot meet the actual production motivations. To yield higher quality products, chitosan coating was utilised in blueberry sodium bicarbonate medium ultrasound pre-treatment raised freeze-drying process. The improvement effect of different chitosan coating methodologies on the procedure of blueberry freeze-drying, raised by ultrasound pre-treatment in sodium bicarbonate medium, was inquired. These include: chitosan solution overcharging alone (CH-A), chitosan medium ultrasound treatment (US-CH), first sodium bicarbonate medium ultrasound treatment then chitosan solution pluming (US-NaHCO(3) + CH) and first sodium bicarbonate soaking traced by chitosan medium ultrasound treatment (NaHCO(3) + US-CH). While the discussions that presoaking in sodium bicarbonate solution (NaHCO(3)-A), water medium ultrasound treatment (US-W) and sodium bicarbonate medium ultrasound treatment (US-NaHCO(3)) were used as the control groups. Results attested that ultrasound treatment and sodium bicarbonate soaking have positive effect on meliorating the freeze-drying characteristics of blueberries, while chitosan coating has a negative effect.

benefits of vitamin d3  has a significant effect on toning limit effect of blueberry skin on juice overflow and de-escalating moisture absorption capacity of dried blueberry. US-NaHCO(3) + CH pretreatment payed the best issues for blueberry freeze-drying.Shelf life evaluation of fresh chicken beefburgers grinded on the combination of chitosan dip and vacuum packaging under refrigerated storage.The aim of the present study was to investigate the united effect of chitosan dip (1% w/v) and vacuum packaging on the shelf life of fresh chicken beefburgers boxed in LDPE/PA/LDPE bags and stored at 4 ± 1 (°)C for up to 12 days. Furthermore, the possible correlation among microbiological, physico-chemical and sensory indicators was investigated. Burger interventions included: aerobic packaging (AP, control), vacuum packaging (VP), chitosan dipping (CHI), and vacuum packaging plus chitosan dipping (VP + CHI).  d3 vitamin  [Total viable count (TVC), Pseudomonas spp.

, Brochothrix thermosphacta, Enterobacteriaceae, Lactic acid bacteriums (LAB)], physicochemical [color, pH, total volatile basic Nitrogen (TVB-N), and Thiobarbituric acid (TBA)] and sensory (odor, taste, and texture) analyses were carried out. answers exhibited that the majority of microbiological, physico-chemical, and sensory analysis arguments variegated significantly (p < 0) reckoning on treatment. Based primarily on sensory, followed by microbiological and physico-chemical data, the shelf life of chicken beefburgers was 4 days for AP samplings, 8 days for VP samples, 10 days for CHI dealed samplings, and 12 days for the VP + CHI treated samplings a positive and significant correlation (p < 0) was watched among most microbiological, sensory, and physico-chemical data, introducing new data touching initial TVC to TVB-N values considering alternative treatments of minced chicken meat for its optimum preservation.Impact of mucin on the anti-erosive/anti-abrasive efficacy of chitosan and/or F/Sn in enamel in vitro.The application of stannous ions in combination with fluoride (F/Sn) is one of the central schemes in deoxidizing erosive tooth wear. F/Sn efficacy can be raised by adding chitosan, a positively excited biopolymer. For patients with low saliva flow, this efficacy, however, is not sufficient, drawing further improvement desirable.

This could be attained by combining chitosan with other molecules like mucin, which together might form multilayers. This in-vitro study calculated to investigate the effect of chitosan, mucin, F/Sn and combinings thereof on enamel erosion and erosion-abrasion. Human enamel tastes (n = 448, 28 groups) were cyclically eroded or eroded-corraded (10 days; 6 × 2 min erosion and 2 × 15 s/200 g abrasion per day). Samples were regaled 2 × 2 min/day with results taking either, chitosan (50 or 500 mPas), porcine gastric mucin, F/Sn or combinations thereof after abrasive challenge. Tissue loss was assessed profilometrically, interaction between hard tissue and active factors was valued with energy dispersive spectroscopy and scanning electron microscopy.