Nanoencapsulation of Grapefruit Seed Extract and Cinnamon Oil for Oral Health: Preparation, In Vitro, and Clinical Antimicrobial Activities
- Authors
- Choi, Ye Seul; Lee, Ji-Soo; Lee, Hyeon Gyu
- Issue Date
- Apr-2023
- Publisher
- AMER CHEMICAL SOC
- Keywords
- grapefruit seed extract; cinnamon oil; nanoencapsulation; antimicrobial activity; oral bacteria
- Citation
- JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, v.71, no.14, pp.5646 - 5654
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
- Volume
- 71
- Number
- 14
- Start Page
- 5646
- End Page
- 5654
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185496
- DOI
- 10.1021/acs.jafc.2c05518
- ISSN
- 0021-8561
- Abstract
- This study aimed to formulate mucoadhesive antimicrobial nanoparticles using natural antimicrobials and biopolymers for oral health and verify their antimicrobial activity in clinical studies. A combination of grapefruit seed extract and cinnamon oil (GCN) and chitosan/carrageenan (CS/CR) were selected as synergistic antimicrobial combinations and mucoadhesive wall materials for nanoparticles, respectively. GCN nanoparticles (NPs; size = 357 nm and polydispersity index = 0.188) prepared by ionic gelation between CS and CR exhibited synergistic antimicrobial activity between grapefruit seed extract and cinnamon oil and significantly higher antimicrobial activity against Streptococcus mutans and sobrinus than free GCN in a time-kill assay. The clinical antibacterial activity of GCN was significantly increased and sustained by nanoencapsulation in the mouth-rinse test and GCN NP-treated drinking yogurt. These results suggest that GCN-loaded CS/CR nanoencapsulation is a promising technique that can inhibit oral bacteria with or without the presence of other food ingredients.
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