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1. Multifunctional chitosan-based coating with liposomes containing laurel essential oils and nanosilver for pork preservation.

Author

Wu Z, Zhou W, Pang C, Deng W, Xu C, and Wang X

Subjects
Animals, Anti-Bacterial Agents chemistry, Anti-Bacterial Agents pharmacology, Antioxidants chemistry, Antioxidants pharmacology, Chitosan chemistry, Food Quality, Food Storage methods, Humans, Liposomes pharmacology, Metal Nanoparticles chemistry, Oils, Volatile pharmacology, Particle Size, Sesquiterpenes pharmacology, Silver chemistry, Swine, Temperature, Food Preservation methods, Liposomes chemistry, Oils, Volatile chemistry, Red Meat, Sesquiterpenes chemistry
Abstract

The instability of Laurel essential oil (LEO) and easy leakage of silver nanoparticle (AgNP) restricts their application in food field. To control their release, liposomes were used to encapsulate LEO and AgNPs (Lip-LEO-AgNPs), and mixed with chitosan to coat polyethylene (PE) films (PC-Lip/LEO/AgNPs) to package pork. The results show that only about 29.30% of LEO and 11.79% of AgNPs were released from the liposome after 7 days at 25 °C. Nevertheless, Lip-LEO-AgNPs showed good antioxidant properties. Moreover, PC-Lip/LEO/AgNPs films had good antimicrobial activity. Evaluation tests on pork indicate that PC-Lip/LEO/AgNPs films could keep the quality of pork at 4 °C for 15 days while pure PE film only kept it for 9 days, and that the coating films had no cytotoxicity. PC-Lip/LEO/AgNPs films exhibited significant combined action in functional packaging to extend storage period, and provided a new idea for the application of LEO and AgNPs in food., (Copyright © 2019 Elsevier Ltd. All rights reserved.)

Published
2019
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2. Chemical composition of the essential oil of Phlomis linearis Boiss.Bal., and biological effects on the CAM-assay: a safety evaluation

Author

Mehmet Yaşar Dadandi, D. H. Paper, Kemal Hüsnü Can Başer, Betül Demirci, Gerhard Franz, Anadolu Üniversitesi, Eczacılık Fakültesi, Farmakognozi Anabilim Dalı, Demirci, Betül, and Başer, K. Hüsnü Can

Subjects
Turkey, General Biochemistry, Genetics and Molecular Biology, Gas Chromatography-Mass Spectrometry, law.invention, Phlomis, Sesquiterpenes, Germacrane, law, Allantois, Botany, Oils, Volatile, Animals, Phlomis Linearis, Cam-Assay, Chemical composition, Phlomis linearis, Essential oil, Polycyclic Sesquiterpenes, biology, Traditional medicine, Chemistry, Anti-Inflammatory Agents, Non-Steroidal, Biological activity, Chorion, biology.organism_classification, Essential Oil, Lamiaceae, Cattle, Gas chromatography–mass spectrometry, Hydro distillation, Cam assay, Sesquiterpenes
Abstract

WOS: 000188262800014, PubMed ID: 14713159, Phlomis linearis Boiss. & Bal. of the Lamiaceae family growing in central, east and southeast Anatolia is an endemic species for Turkey. The essential oil obtained from the aerial parts by hydro distillation was subsequently analyzed by GC/MS. The main components of the oil were found as beta-caryophyllene (24.2%), germacrene D (22.3%) and caryophyllene oxide (9.2%), among 49 identified compounds, representing 94.5% of the total essential oil. The overall biological activity of the essential oil (100 mug/pellet) was tested on the chorioallantoic membrane (CAM) of the fertilized hen's egg in order to examine the anti-angiogenic and anti-inflammatory activity. None of the tests showed pronounced activity, toxicity or irritation at the tested concentration.

Published
2004