scholarly journals Effectiveness of Goji Berries (Lycium barbarum) Extract and Some Nanoparticles Loaded on Gelatin Film on Microbial Content of Labneh

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Oroba Bahjat Shihab ◽  
Mohammed Ahmed Jassim ◽  
Hashim Mohammed Zehraw
Keyword(s):  
Chitosan Nanoparticles ◽  
Storage Period ◽  
Gelatin Film ◽  
Prolonged Storage ◽  
Lycium Barbarum ◽  
Tio2 Nps ◽  
Gelatin Films ◽  
Goji Berries ◽  
Yeasts And Molds ◽  
Number Of Bacteria

This study was conducted to evaluate the effect of Lycium barbarum extract, Chitosan nanoparticles (ChNPs) and Nanotitanium dioxide (TiO2 NPs) loaded on Gelatin films on the microbial content of labneh during different storage periods. The samples were divided into seven treatments which included (T1) non-coated labneh, (T2) labneh coated with gelatin membranes, (T3) labneh coated with gelatin membranes and Lycium barbarum extract, (T4) labneh coated with gelatin films and ChNPs, (T5) labneh coated with gelatin films treated TiO2NPs, (T6) Labneh coated with gelatin films, Lycium barbarum and ChNPs, (T7) Labneh coated with gelatin films, Lycium barbarum and TiO2 NPs. The total number of bacteria decreased after loading with the membranes for each specific period of time, and the treatment with T7 was the best, as the total number of bacteria decreased to 9.93 log/gm compared to the two controls (T1, T2), which amounted to (15.58, 13.47 log/gm) after 14 days of storage, respectively. While the numbers of Lipolytic and Proteolytic bacteria, yeasts and molds did not show any growth at the time of one day, with the prolonged storage period, the gradual increase in the total count of bacteria occurred for all treatments, it reached the highest numbers at the time of 14 days. Treatment T7 was the best in reducing the numbers of both lipolytic and proteinolytic bacteria, as well as yeasts and molds.

scholarly journals Effect of Goji Berries (Lycium Barbarum) Extract and Some Nanoparticles Loaded on Gelatin Film in Chemical Properties of Labneh

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Oroba Bahjat Shihab ◽  
Mohammed Ahmed Jassim ◽  
Hashim Mohammed Zehraw
Keyword(s):  
Fatty Acid ◽  
Storage Period ◽  
Moisture Loss ◽  
Control Treatment ◽  
Lycium Barbarum ◽  
Tio2 Nps ◽  
Gelatin Films ◽  
Goji Berries ◽  
T1 And T2 ◽  
Control Samples

This study is conducted to evaluate the effect of Lycium barbarum extract (Goji berries), Chitosan nanoparticle (ChNPs), titanium dioxide nanoparticle (TiO2 NPs) loaded on Gelatin films in terms of the chemical composition of labneh during different storage periods. The samples were divided into seven treatment procedures, include (T1) non-coated labneh, (T2) labneh coated with Gelatin membranes, (T3) labneh coated with Gelatin membranes and Lycium barbarum extract, (T4) labneh coated with Gelatin films and ChNPs, (T5) labneh coated with Gelatin films treated TiO2 NPs, (T6) Labneh coated with Gelatin films, Lycium barbarum, ChNPs, (T7) Labneh coated with Gelatin films, Lycium barbarum, TiO2 NPs. The results showed that the moisture percentage decreased significantly (p <0.05) untilthe end of the storage period, and treatment T6 was less in the rate of moisture loss (72.35%). It was also found that the ratios of protein, fat, ash, did not show significant differences at the time of one day compared with the two control samples T1 and T2, These percentages increased gradually as the duration of preservation was prolonged and reached their highest values at the time of 14 days. The pH values decreased significantly between (4.36-4.32) at the end of the storage period, compared with the two control samples T1 and T2, which were at 4.16 and 4.23, respectively. It was found that the fatty acid values of all treatments were significantly low compared with the control treatment T1 at the time of one dayThe free fatty acid ratios increased and reached their highest values between (0.29 - 0.32) for all treatments compared with the two control treatments T1 and T2 at the end of the storage period which amounted to (0.39 and 0.35) %.

Influence of anise (Pimpinella anisum L.) essential oil on the microbial, chemical, and sensory properties of chicken fillets wrapped with gelatin film

2020 ◽  
pp. 108201322093522
Author(s):  
Bahram Fathi-Achachlouei ◽  
Nima Babolanimogadam ◽  
Younes Zahedi
Keyword(s):  
Essential Oil ◽  
Shelf Life ◽  
Thiobarbituric Acid ◽  
Gelatin Film ◽  
Life Extension ◽  
Thiobarbituric Acid Reactive Substance ◽  
Chemical Parameters ◽  
Gelatin Films ◽  
Yeasts And Molds ◽  
Sensory Tests

The present study aimed to develop a novel active edible film based on gelatin incorporated with 0, 0.3, 0.6, and 0.9% w/w anise essential oil as a natural preservative and investigate the shelf life extension potential of chicken fillets during 12 days of refrigerated storage. The chicken fillets were wrapped with the essence-free and anise essential oil-loaded gelatin films, and microbial counts, chemical and sensory tests were surveyed during chilled storage. Results showed that aerobic mesophilic bacteria and Pseudomonas spp counts significantly decreased at all levels of anise essential oil during the first week of storage, while psychrotrophs, yeasts, and molds numbers began to reduce at concentrations of 0.6 and 0.9% from day 6. The using of anise essential oil caused a significant decrease of chemical parameters of chicken fillets, and the values of pH, peroxide, thiobarbituric acid reactive substance, and total volatile basic-nitrogen reached from 7.42, 5.7 meq/kg, 2.21 mg malondialdehyde/kg, and 24.94 mg N/100 g for the essence-free wrapped samples to 4.8, 6.35 meq/kg, 1.73 mg malondialdehyde/kg, and 18.78 mg N/100 g for the ones wrapped with 0.9% anise essential oil-loaded gelatin films at the end of storage day. In conclusion, application of gelatin films loaded with 0.6 and 0.9% anise essential oil can be advised for wrapping chicken fillets to prolong the shelf life for at least one week.

scholarly journals YOGHURT WITH GOJI BERRY FRUITS (LICIUM BARBARUM L.)

2019 ◽  
Vol 7 (2) ◽  
pp. 131-137
Author(s):  
Ira Taneva
Keyword(s):  
Control Sample ◽  
Storage Period ◽  
Lycium Barbarum ◽  
Goji Berry ◽  
Goji Berries ◽  
Berry Fruits

A yoghurt was obtained with the addition of goji berry (Lycium barbarum L.) fruits. The sequence of technological operations has been established. The active acidity of the yoghurt samples was determined during coagulation and in the storage period for 20 days (1, 10 and 20 days). During storage, pH and syneresis decreases. As a result of organoleptic assessments, yogurt with a 4% addition of goji berry fruits is preferred after a control sample. The study shows that goji berries can be used in the production of yoghurt as a functional nutritional ingredient.

scholarly journals Preparation and Characterization of Ginger Essential Oil Microcapsule Composite Films

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2268
Author(s):  
Huahua Wang ◽  
Mengyao Li ◽  
Zhouyong Dong ◽  
Tiehua Zhang ◽  
Qingyu Yu
Keyword(s):  
Essential Oil ◽  
Food Packaging ◽  
Composite Films ◽  
Storage Period ◽  
Gelatin Film ◽  
Scanning Calorimetry ◽  
Application Range ◽  
Gelatin Films ◽  
Entire Storage Period ◽  
High Level

New food packaging has shown research significance in the face of increasing demand for high-quality foods and growing attention paid to food safety. In this study, ginger essential oil microcapsule composite films were prepared by combining microcapsules prepared by a complex coacervation method with gelatin films, and the mechanical properties and active functions of the composite films were analyzed. Fourier-transform infrared spectroscopy and differential scanning calorimetry confirmed the successful encapsulation of ginger essential oil. The scanning electron microscopy of the composite films showed the microcapsules and gelatin film matrix were highly compatible. During the entire storage period, the antioxidant capacity of the ginger essential oil microcapsule films weakened more slowly than ginger essential oil microcapsules and could be maintained at a relatively high level for a long time. The microcapsule films had excellent inhibitory effects on Escherichia coli, Staphylococcus aureus, and Bacillus subtilis. Therefore, the direct addition of microcapsules to a film matrix can broaden the application range of microcapsules and increase the duration of the release of active ingredients. Ginger essential oil microcapsule films are potential biodegradable food packaging films with long-lasting activity.

scholarly journals Salt Stress Mitigation via the Foliar Application of Chitosan-Functionalized Selenium and Anatase Titanium Dioxide Nanoparticles in Stevia (Stevia rebaudiana Bertoni)

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4090
Author(s):  
Morteza Sheikhalipour ◽  
Behrooz Esmaielpour ◽  
Gholamreza Gohari ◽  
Maryam Haghighi ◽  
Hessam Jafari ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Salt Stress ◽  
Titanium Dioxide Nanoparticles ◽  
Chitosan Nanoparticles ◽  
Stevia Rebaudiana ◽  
High Salt ◽  
Steviol Glycosides ◽  
Rebaudioside A ◽  
Tio2 Nps ◽  
Stevia Rebaudiana Bertoni

High salt levels are one of the significant and major limiting factors on crop yield and productivity. Out of the available attempts made against high salt levels, engineered nanoparticles (NPs) have been widely employed and considered as effective strategies in this regard. Of these NPs, titanium dioxide nanoparticles (TiO2 NPs) and selenium functionalized using chitosan nanoparticles (Cs–Se NPs) were applied for a quite number of plants, but their potential roles for alleviating the adverse effects of salinity on stevia remains unclear. Stevia (Stevia rebaudiana Bertoni) is one of the reputed medicinal plants due to their diterpenoid steviol glycosides (stevioside and rebaudioside A). For this reason, the current study was designed to investigate the potential of TiO2 NPs (0, 100 and 200 mg L−1) and Cs–Se NPs (0, 10 and 20 mg L−1) to alleviate salt stress (0, 50 and 100 mM NaCl) in stevia. The findings of the study revealed that salinity decreased the growth and photosynthetic traits but resulted in substantial cell damage through increasing H2O2 and MDA content, as well as electrolyte leakage (EL). However, the application of TiO2 NPs (100 mg L−1) and Cs–Se NPs (20 mg L−1) increased the growth, photosynthetic performance and activity of antioxidant enzymes, and decreased the contents of H2O2, MDA and EL under the saline conditions. In addition to the enhanced growth and physiological performance of the plant, the essential oil content was also increased with the treatments of TiO2 (100 mg L−1) and Cs–Se NPs (20 mg L−1). In addition, the tested NPs treatments increased the concentration of stevioside (in the non-saline condition and under salinity stress) and rebaudioside A (under the salinity conditions) in stevia plants. Overall, the current findings suggest that especially 100 mg L−1 TiO2 NPs and 20 mg L−1 Cs–Se could be considered as promising agents in combating high levels of salinity in the case of stevia.

scholarly journals Smart Starch-Gelatin Films Incorporated with Curcumin

2020 ◽  
Vol 36 (6) ◽  
pp. 1088-1095
Author(s):  
Le Thi Bich Nguyet ◽  
Vinh Tien Nguyen
Keyword(s):  
Acetic Acid ◽  
Food Packaging ◽  
Gelatin Film ◽  
Film Properties ◽  
Elongation At Break ◽  
Independent Variables ◽  
Gelatin Films ◽  
Film Forming ◽  
Central Composite Experimental Design ◽  
Central Composite

In this study, we developed a starch-gelatin film incorporated with synthesized curcumin to be used as a pH-sensitive smart material for food packaging. The film-forming mixture contained five components: starch, gelatin, glycerol, acetic acid and curcumin. The interactions of the components and their effects on the film properties were investigated by using response surface methodology with central composite experimental design. The results showed impacts of the contents of these components as independent variables on tensile strength, elongation at break, Young’s modulus and solubility of the films. The contents of starch, gelatin and glycerol significantly affect these properties, while acetic acid and curcumin do not (p<0.05). Also, it was shown that the incorporation of curcumin provided the film with the capacity to sense pH changes from neutral to basic (yellow at pH ≤ 8 and orange-red at pH ≥ 9).

scholarly journals Manufacturing of Fermented dairy products by using Lactobacillus casei which had the ability to lower cholesterol

2010 ◽  
Vol 4 (1) ◽  
pp. 72-81
Author(s):  
Abdul Wahed Baker ◽  
Zaid A. A. ◽  
Amer A. A.
Keyword(s):  
Shelf Life ◽  
Dairy Products ◽  
Lactobacillus Casei ◽  
Storage Period ◽  
Bacterial Cells ◽  
Manufactured Products ◽  
Fermented Dairy Products ◽  
Therapeutic Properties ◽  
Fermented Dairy ◽  
Number Of Bacteria

The study included manufacturing of fermented dairy products by using full cream milk of four kinds of mammalian: (Buffalos, Cows, Sheep's and Goats); with the use of Lactobacillus casei as a starter for the production of fermented dairy products which had the ability to lower cholesterol percentage in the above mentioned products by (71.4, 70, 74.8 and 67.7)% respectively. The viability of Lb. casei had not been affected significantly during storage shelf life of 21days " The product shelf life " , keeping their therapeutic properties unaltered with high viable number of bacteria at time of consumption. The viable counts of the bacteria after storage period for manufactured products were (1.06× 109, 8.1× 108, 7.5× 108and 8× 108) CFU/ml respectively. These numbers represent a decrease equal to one logarithmic cycle for each of manufactured products of Cows, Sheep's and Goats milk, and the decrease of bacteria's viability of manufactured products of Buffalos milk was less than one logarithmic cycle. Results of statistical analysis showed that there was highly significant differences (P<0.05) in the viable bacterial cells counts between manufactured products. By sensory comparison of the manufactured fermented products together, the results shows that the manufactured products from Buffalos milk was the best then the manufactured products of Cows milk then Sheep's milk then goats milk

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