In vitro Antioxidant, Anti-inflammatory and Antibacterial Activities of Microencapsulated Elaeocarpus tectorius (Lour.) Poir Leaf Extracts

Manoharan, Keerthana; Palanivel, Chitra

doi:10.5530/ajbls.2021.10.79

Cited by 3 publications

(1 citation statement)

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“…Poir. leaf extract microcapsules [21], and other plant-derived extraction microcapsules [22]. They have been used for fruit and vegetable preservation [23].…”

Section: Introductionmentioning

confidence: 99%

Development, Physicochemical Properties, and Antibacterial Activity of Propolis Microcapsules

Zhang,

Yang,

Tan

et al. 2023

Foods

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Propolis is a well-known natural antibacterial substance with various biological activities, such as anti-inflammatory and antioxidant activity. However, applications of propolis are limited due to its low water solubility. In this study, propolis microcapsules were developed with a core material of ethanol extract of propolis and shell materials of gum arabic and β-cyclodextrin using a spray-drying technique. The optional processing formula, particle size distribution, morphology, dissolution property, and antibacterial activity of propolis microcapsules were determined. The results showed that the optional processing obtained an embedding rate of 90.99% propolis microcapsules with an average particle size of 445.66 ± 16.96 nm. The infrared spectrogram and thermogravimetric analyses showed that propolis was embedded in the shell materials. The propolis microcapsules were continuously released in water and fully released on the eighth day, and compared to propolis, the microcapsules exhibited weaker antibacterial activity. The minimum inhibitory concentrations (MICs) of propolis microcapsules against Escherichia coli and Staphylococcus aureus were 0.15 and 1.25 mg/mL, and their minimum bactericidal concentrations (MBCs) were 0.3 and 1.25 mg/mL, respectively. This water-soluble propolis microcapsule shows the potential for use as a sustained-release food additive, preservative, or drug.

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“…Poir. leaf extract microcapsules [21], and other plant-derived extraction microcapsules [22]. They have been used for fruit and vegetable preservation [23].…”

Section: Introductionmentioning

confidence: 99%

Development, Physicochemical Properties, and Antibacterial Activity of Propolis Microcapsules

Zhang,

Yang,

Tan

et al. 2023

Foods

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Alginate Microcapsules Loaded with Eryngium billardieri Extract and Its Application in Apple Juice

Abtahi,

Khoshkhoo,

Khorshidian

et al. 2024

Journal of Food Quality

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Fruit juices can be enriched with plant extracts to enhance the nutritional and biological value of the product. Plant extracts are rich sources of bioactive compounds such as polyphenols with potential health benefits for consumers. In the present study, alginate microcapsules containing Eryngium billardieri (EB) extract (derived from aerial parts) were prepared and incorporated into apple juice. EB extract as nonencapsulated (NE), encapsulated (E) in microcapsules, and the combination of nonencapsulated + encapsulated (NE + E) at different concentrations of 1, 3, and 5% (w/v) were added to apple juice. These sample groups were stored at 4°C, and quality characteristics were evaluated for 21 days with a week of regular intervals. The results showed that the prepared microcapsules were spherical shaped with a size of 150–170 μm. The highest (75.12%) and the lowest (70.63%) encapsulation efficiency (EE) on the first day of storage were obtained in microcapsules containing 5% and 1% extract, respectively. EE decreased during storage time, and the lowest EE (65.25%) was observed in samples with 1% extract on day 21. Incorporation of E and NE + E extract improved total anthocyanin, total phenolic content, total flavonoid content, and antioxidant activity of apple juice due to the protective effects of the encapsulation on polyphenol compounds in the extract. After 21 days of storage, the highest (10.21%) and the lowest (5.85%) ascorbic acid contents were observed in samples with 5% NE + E t and control samples, respectively. Addition of EB extract to apple juice prevented the growth of yeasts and molds till day 7, and encapsulation of extract could enhance inhibitory activity. In terms of sensory acceptability, apple juices containing encapsulated extract received higher scores by panelists as a result of masking the unpleasant color and flavor of the extract. These results indicate that the application of EB microcapsules has potential for use in the food industry.

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Effect of Microencapsulation on the Antidiabetic and Antioxidant activities of Elaeocarpus tectorius (Lour.) Poir. Leaf extracts- An In vitro study

Manoharan,

Chitra,

Ragunathan

2024

RJPT

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Microencapsulation is a novel, cost-effective technique that helps in protecting the bioactivity of plant extracts. The current study is aimed to prepare chitosan-coated sodium alginate microcapsules containing Elaeocarpus tectorius leaf extracts and to study its antioxidant and antidiabetic properties using in vitro assays. The ethanolic extract of E. tectorius was subjected to UV-VIS and FTIR analysis. The extracts were then subjected to microencapsulation using chitosan and sodium alginate. The synthesized chitosan-sodium alginate microcapsules were characterized using FESEM analysis. Further, the antioxidant and antidiabetic activities of the prepared microcapsules and crude extracts were assessed using in vitro assays. The UV-VIS and FTIR analysis of the leaf extracts revealed the presence of functional groups of phenolics, flavonoids and proteins. The microcapsules exhibited good antidiabetic potential through the inhibition of α- amylase and α- glucosidase enzymes. The antioxidant assays revealed that the microcapsules exhibited significantly higher antioxidant potential compared with the crude extracts. The chitosan-sodium alginate microcapsules containing Elaeocarpus tectorius leaf extracts could be used as an alternative to synthetic antidiabetic drugs and as a rich source of antioxidants.

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In vitro Antioxidant, Anti-inflammatory and Antibacterial Activities of Microencapsulated Elaeocarpus tectorius (Lour.) Poir Leaf Extracts

Cited by 3 publications

References 0 publications

Development, Physicochemical Properties, and Antibacterial Activity of Propolis Microcapsules

Development, Physicochemical Properties, and Antibacterial Activity of Propolis Microcapsules

Alginate Microcapsules Loaded with Eryngium billardieri Extract and Its Application in Apple Juice

Effect of Microencapsulation on the Antidiabetic and Antioxidant activities of Elaeocarpus tectorius (Lour.) Poir. Leaf extracts- An In vitro study

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