Simultaneous separation of six pure polymethoxyflavones from sweet orange peel extract by high performance counter current chromatography

2019 ◽  
Vol 292 ◽  
pp. 160-165 ◽  
Author(s):  
Yin Xu ◽  
Xiaojian Lv ◽  
Guliang Yang ◽  
Jianfeng Zhan ◽  
Ming Li ◽  
...  
2020 ◽  
Author(s):  
Alejandro Hernández ◽  
Santiago Ruiz-Moyano ◽  
Ana Isabel Galván ◽  
Almudena V. Merchán ◽  
Francisco Pérez Nevado ◽  
...  

2015 ◽  
Vol 1 (1) ◽  
pp. 86
Author(s):  
Aqilla Tiara Kartiningtyas ◽  
Prayitno Prayitno ◽  
Sri Pramestri Lastianny

Penyembuhan luka merupakan mekanisme pertahanan jaringan, dengan epitelisasi sebagai salah satu parameternya. Kulit jeruk manis memiliki potensi dalam penyembuhan luka karena mengandung nutrisi yang memiliki peran dalam mempercepat penyembuhan luka. Penelitian ini bertujuan untuk mengetahui efek aplikasi topikal gel ekstrak kulit jerukmanis terhadap epitelisasi pada proses penyembuhan luka gingiva labial tikus Sprague Dawley. Dua puluh tujuh ekor tikus Sprague Dawley, berumur 2-3 bulan, dibagi dalam 3 kelompok, kontrol positif, perlakuan, dan kontrol negatif. Perlukaan pada gingiva labial mandibula dibuat dengan punch biopsy berdiameter 2,5 mm. Luka pada kelompok kontrolpositif diaplikasikan Aloclair, kelompok perlakuan diaplikasikan gel ekstrak kulit jeruk manis 10%, dan kelompok kontrol negatif diaplikasikan CMC-Na, masing-masing 2 kali sehari selama 1 menit secara topikal. Tiga ekor tikus dari tiap kelompok didekapitasi masing-masing pada hari ke-3, 7, dan 14. Jaringan luka diambil dan dibuat sediaan histologis dengan pengecatan Hemaktosilin Eosin. Pengukuran ketebalan epitel dilakukan dengan menggunakan Optilab yang dipasang pada mikroskop cahaya. Data ketebalan epitel dianalisis dengan menggunakan ANAVA dua jalur. Hasil pengukuran ketebalan epitel menunjukkan perbedaan yang tidak signifikan pada kelompok kontrol positif dengan perlakuan (p>0,05), namun menunjukkan perbedaan yang signifikan pada kelompok perlakuan dengan kontrol negatif (p<0,05) pada hari 3, 7, dan 14 setelah perlukaan. Kesimpulan dari penelitian ini adalah aplikasi topikal gel ekstrak kulit jeruk manis mempercepat epitelisasi pada proses penyembuhan luka gingiva labial tikus Sprague Dawley. Effect of Topical Application of Sweet Orange (Citrus sinensis) Peel Extract Gel on Epithelialization of Labial Gingival Wound Healing: In Vivo Studies in Sprague Dawley Rats. Wound healing is a defense mechanism from complex biological phenomenon, in which epithelialization occurs as one of its parameters. Sweet orange peelcontains nutrients that have role in enhancing wound healing process. The objective of this research is to determine the effect of topical application of sweet orange peel extract gel on epithelialization of wound healing process in labial mandibular gingiva of Sprague Dawley rats. Twenty seven Sprague Dawley rats were divided into 3 groups: positivecontrol, treatment, and negative control. Labial mandibular gingival was wounded using 2.5 mm diameter punch biopsy. Topically, each wound of positive control group was administered Aloclair, treatment group was administered 10% sweet orange peel extract gel, and negative control group was administered CMC-Na, twice a day for 1 minute. Three rats from each group were sacrificed for histological evaluation at 3, 7, and 14 days and the specimens were stained with HE. The measurement of the epithelial thickness used Optilab installed on microscope. The data obtained from the measurement was analyzed using two-way ANOVA. There was insignificant difference between positive control group and treatment group (p>0.05) while there was significant difference between treatment group and negative control group (p<0.05) observed at 3, 7, and 14 days. The conclusion of this research is that the application of sweet orange peel extract gel accelerates epithelialization of wound healing process in labial mandibular gingiva of Sprague Dawley rats.


2016 ◽  
Vol 40 ◽  
pp. 288-297 ◽  
Author(s):  
Mehmet ÇİFTÇİ ◽  
Ülkü Gülcihan ŞİMŞEK ◽  
Bestami DALKILIÇ ◽  
Mehmet Ali AZMAN ◽  
Ökkeş YILMAZ ◽  
...  

2016 ◽  
Vol 12 (3) ◽  
pp. 303-310 ◽  
Author(s):  
Omid Hasani ◽  
Seyed Rohollah Javadian

Abstract The aim of the present study was to evaluate antioxidative activities of the encapsulated and unencapsulated bitter orange peel extract on the shelf-life of the common carp fillets during 16 days of refrigerated storage. Common carp fillets were treated with bitter orange peel extract (0.5 and 1% w/w), liposomal encapsulated bitter orange peel extract (0.5 and 1% w/w) and beta-hydroxytoluene (BHT, 100 and 200 ppm); their quality changes in terms of total volatile basic nitrogen (TVB-N), free fatty acid (FFA) peroxide value (PV), thiobarbituric acid (TBA) and sensory characteristics were investigated. Results showed that the encapsulated and pure extract and BHT could reduce chemical deterioration and lipid oxidation in the fillets compared to the control, as reflected with lower TVBN, FFA, PV and TBA values. Furthermore, common carp fillets treated with high concentration (1%) of the encapsulated bitter orange peel extract showed the lowest amount of lipid oxidation during the storage period compared with the others without any undesirable changes in sensorial attributes.


2012 ◽  
Vol 111 (4) ◽  
pp. 1757-1769 ◽  
Author(s):  
Kadarkarai Murugan ◽  
Palanisamy Mahesh Kumar ◽  
Kalimuthu Kovendan ◽  
Duraisamy Amerasan ◽  
Jayapal Subrmaniam ◽  
...  

2016 ◽  
Vol 11 (8) ◽  
pp. 1934578X1601100
Author(s):  
Ewelina Kozioł ◽  
Ilkay Erdogan Orhan ◽  
F. Sezer Senol ◽  
Kalina Alipieva ◽  
Milen Georgiev ◽  
...  

The dichloromethane (DCM) extract of the fruits of Peucedanum schottii Besser ex DC. (Apiaceae) was subjected to high-performance counter-current chromatography (HPCCC) for the efficient and fast separation (30 min) and isolation of cimifugin using an ethyl acetate: water (1:1 v/v, K = 1.01) system. The analytical scale-optimized separation was easily scaled to semi-preparative conditions. Cimifugin (11.25% yield, 96.5% purity) was isolated for the first time from P. schottii and characterized by NMR spectroscopy. Cimifugin and the crude DCM extract were evaluated using ELISA microtiter assays for their inhibitory potential against the cholinesterases (acetylcholinesterase - AChE and butyrylcholinesterase - BChE), and tyrosinase (TYR), which are key enzymes for the treatment of some neurodegenerative diseases, i.e. Alzheimer's and Parkinson's. The crude extract exhibited a weak inhibitory activity against AChE, BChE, and TYR (4.2, 35.5, and 0% at 100 μg mL−1 and 10.3, 40.0, and 12.2% at 200 μg mL−1, respectively), while cimifugin displayed low to moderate inhibition towards AChE and BChE (3.1 and 21.6%, respectively) at 200 μg mL−1.


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