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Absorption kinetics of vitamin E nanoemulsion and green tea microstructures by intestinal in situ single perfusion technique in rats

Authors
Saratale, Rijuta GaneshLee, Hee-SeokKoo, Yong EuiSaratale, Ganesh DattatrayaKim, Young JunImm, Jee YoungPark, Yooheon
Issue Date
4월-2018
Publisher
ELSEVIER SCIENCE BV
Keywords
In situ single perfusion technique; Food-related nanoscale materials; Nanosized vitamin E; Microsized green tea
Citation
FOOD RESEARCH INTERNATIONAL, v.106, pp.149 - 155
Indexed
SCIE
SCOPUS
Journal Title
FOOD RESEARCH INTERNATIONAL
Volume
106
Start Page
149
End Page
155
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/76201
DOI
10.1016/j.foodres.2017.12.076
ISSN
0963-9969
Abstract
The absorption kinetics of food ingredients such as nanoemulsified vitamin E and green tea microstructures were evaluated by the intestinal in situ single perfusion technique. Absorption rate, sub-acute oral toxicity and organ morphology in a rat model were examined. The intestinal in situ single perfusion technique and HPLC analysis were applied to investigate the absorption rate of selected materials by examining time-dependent changes in the serum levels of catechin and DL-alpha-tocopherol. The acute toxicity test and histopathological evaluation were applied to analyze the safety of microsized green tea and nanosized vitamin E in a rat model. Total serum DL-alpha-tocopherol levels significantly increased with nanosized vitamin E administration (P < 0.05). Rats treated to nanosized vitamin E until 90 min after administration showed significantly increased absorption rate of serum DL-a-tocopherol levels at each time point (10 min interval) (P < 0.001). Rats administered 2000 mg/kg of nanosized vitamin E and microsized green tea did not show signs of acute toxicity or death after 14 days of observation. In addition, macroscopic analysis showed that there were no changes in representative organ sections of rats following the oral administration of food-related nanoscale materials. We successfully demonstrated that using nanosized vitamin E increased absorption rate to a greater extent than normal food-related material, and these results occurs via safety analyses on food-related nanoscale materials for human consumption. These results could be useful for the design and development of novel nanoemulsified vitamin E and microsized green tea formulations that can overcome the problem of their bioavailability and improve their efficacy while still maintaining their essential therapeutic efficacies.
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