Effect of the Melicoccus bijugatus leaf and fruit extracts and acidic solvents on the antimicrobial properties of chitosan‐starch films

2021 ◽  
Author(s):  
Mayra Elizabeth Juárez‐Méndez ◽  
Jessica Ismalé Lozano‐Navarro ◽  
Carlos Velasco‐Santos ◽  
Josué Francisco Pérez‐Sánchez ◽  
Samuel Zapién‐Castillo ◽  
...  
Keyword(s):  
Antimicrobial Properties ◽  
Fruit Extracts ◽  
Starch Films ◽  
Acidic Solvents

scholarly journals The Carpathian lingonberry, raspberry and blackberry fruit extracts feature variable antimicrobial efficiency

2019 ◽  
pp. 27-32
Author(s):  
Emőke Mihok ◽  
Éva György ◽  
Endre Máthé
Keyword(s):  
Antimicrobial Properties ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Diffusion Method ◽  
Gram Positive ◽  
Gram Negative ◽  
Antimicrobial Effects ◽  
Fruit Extracts ◽  
Gram Positive Bacteria ◽  
Wild Berries

Wild berry is an excellent source of phytonutrients and/or bioactive compounds associated with significant therapeutic properties, so that they have been utilized in folk medicine and traditional nutrition throughout centuries. Multiple health-promoting effects, such as anti-inflammatory, anti-diabetic, anti-heart and coronary disease properties were attributed to such wild berries. It has also been proved that berries could feature antimicrobial effects that could be of a great importance for the prevention of food-feed poisoning and fighting back antibiotic resistance. In this study, we investigated the antimicrobial properties of lingonberry (Vaccinium vitis-idaea), raspberry (Rubus idaeus) and blackberry (Rubus fruticosus) crude and ethanolic extracts prepared from fruits obtained from the spontaneous flora of Eastern Carpathian Mountains situated in Transylvania. The antimicrobial effect of crude and alcoholic extracts were assessed on four Gram-negative, five Gram-positive bacteria and one yeast species using the agar diffusion method. The studied bacteria can cause food or feed spoilage and foodborne diseases. Our results indicate the significant inhibitory effect of lingonberry extracts in the case of Gram-negative bacteria like Proteus vulgaris and Salmonella Hartford, while among Gram-positive bacteria the strongest inhibitory effect was observed for Bacillus species like B. cereus, B. subtilis, B. mojavensis and Micrococcus luteus. The raspberry and blackberry extracts featured milder inhibitory effects in the case of the studied bacteria species. Furthermore, we have studied the crude or ethanolic extract combinations associated antimicrobial effects synergistic/additive or antagonistic properties. Interestingly, the triple and double ethanolic extract mixes had stronger antimicrobial properties, whereas the crude extract mixes showed relatively reduced effects, if any. Our results indicate that the antimicrobial activity of studied fruit extracts obtained from wild berries can vary upon the applied extraction method and their combination formulae, so that all these considerations must be taken into account when such fruit extracts are considered for foodstuff development.

Synergic antimicrobial properties of Carvacrol essential oil and montmorillonite in biodegradable starch films

2020 ◽  
Vol 164 ◽  
pp. 1737-1747 ◽  
Author(s):  
Alana Gabrieli de Souza ◽  
Nathalie Mirelle Agostinho dos Santos ◽  
Rondes Ferreira da Silva Torin ◽  
Derval dos Santos Rosa
Keyword(s):  
Essential Oil ◽  
Antimicrobial Properties ◽  
Starch Films

Physical, mechanical and antimicrobial properties of starch films incorporated with ε-poly-l-lysine

2015 ◽  
Vol 166 ◽  
pp. 107-114 ◽  
Author(s):  
Liming Zhang ◽  
Ruichao Li ◽  
Feng Dong ◽  
Aiying Tian ◽  
Zhengjun Li ◽  
...  
Keyword(s):  
Antimicrobial Properties ◽  
Starch Films

In Vitro Antioxidant and Antimicrobial Activity of Extracts from Morus alba L. Leaves, Stems and Fruits

2012 ◽  
Vol 40 (02) ◽  
pp. 349-356 ◽  
Author(s):  
Wei Wang ◽  
Yuangang Zu ◽  
Yujie Fu ◽  
Thomas Efferth
Keyword(s):  
Antioxidant Activities ◽  
Antimicrobial Properties ◽  
Test System ◽  
Morus Alba ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Leaf Extracts ◽  
Fruit Extracts ◽  
Ethanolic Extracts

In this study, the aqueous and ethanolic extracts (leaves, stems and fruits) from Morus alba L., a traditional Chinese medicine, were evaluated for their antioxidant and antimicrobial properties. Ethanolic extracts showed higher contents of both total phenolics and flavonoids than aqueous extracts. The total phenolic content was in the order of: leaf extracts > fruit extracts > stem extracts, whereas the total flavonoids was: leaf extracts > stem extracts > fruit extracts. Using DPPH assays, the concentrations providing 50% inhibition (IC50) values of aqueous extracts from leaves, stems and fruits were 7.11 ± 1.45 mg/ml, 86.78 ± 3.21 mg/ml and 14.38 ± 2.83 mg/ml, respectively, whereas the IC50 values of ethanolic extracts were 3.11 ± 0.86 mg/ml, 14.62 ± 2.45 mg/ml and 12.42 ± 2.76 mg/ml, respectively. In sum, the antioxidant activities of ethanolic extracts from M. alba L. were stronger than the aqueous extracts, and in the order of: leaf extracts > fruit extracts > stem extracts. The ethanolic extracts exhibited moderate antimicrobial activities, whereas the aqueous extracts showed poor antimicrobial properties in our test system. This study validated the medicinal potential of M. alba L.

scholarly journals Physicochemical and antimicrobial properties of cassava starch films with ferulic or cinnamic acid

LWT ◽  
2021 ◽  
Vol 144 ◽  
pp. 111242
Author(s):  
Ramón Ordoñez ◽  
Lorena Atarés ◽  
Amparo Chiralt
Keyword(s):  
Cinnamic Acid ◽  
Antimicrobial Properties ◽  
Cassava Starch ◽  
Starch Films

Antimicrobial properties of starch films incorporated with chitosan nanoparticles: In vitro and in vivo evaluation

2020 ◽  
Vol 230 ◽  
pp. 115602 ◽  
Author(s):  
Ruzanna Ahmad Shapi’i ◽  
Siti Hajar Othman ◽  
Norhazirah Nordin ◽  
Roseliza Kadir Basha ◽  
Mohd Nazli Naim
Keyword(s):  
Chitosan Nanoparticles ◽  
Antimicrobial Properties ◽  
In Vivo Evaluation ◽  
Starch Films
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